RU2806182C2 - Smoking element for use in an aerosol generation system - Google Patents

Abstract

FIELD: aerosol generation systems.

SUBSTANCE: invention relates to a smoking element for use in a non-burning aerosol generation system. The smoking element includes an aerosol-generating material, a mouthpiece behind the aerosol-generating material, and a wrapper containing sensor material for transfer to the user when the smoking element is used. In this case, the wrapper contains an inner surface and an outer surface, and the sensor material is present on at least part of the inner surface and/or the outer surface of the wrapper.

EFFECT: invention makes it possible to obtain a smoking element with a slight increase in the weight of the element itself with a relatively small amount of sensory material in the wrapper of the element, which changes the organoleptic properties obtained by the user when using the claimed smoking element.

40 cl, 2 tbl, 12 dwg

Description

The invention relates to a smoking element for use in a non-burning aerosol generating system, a method for manufacturing a smoking element and a system including a smoking element and a device for heating the aerosol-forming material of the smoking element.

State of the art

Some tobacco industry products, when used, generate an aerosol that is inhaled by the user. For example, tobacco heating devices heat an aerosolizable substrate, such as tobacco, to form an aerosol by heating the substrate rather than burning it. Such tobacco products typically include a mouthpiece that delivers an aerosol into the user's mouth and a wrapper (also called forming paper) surrounding the mouthpiece and at least a portion of the substrate to be aerosolized.

Disclosure of the Invention

According to a first aspect of the present invention, a smoking element for use in a non-combustion aerosol generating system is disclosed, comprising an aerosol-forming material, a mouthpiece behind the aerosol-forming material, and a wrapper containing a sensor material.

According to a second aspect of the present invention, a method for manufacturing a smoking element according to the first aspect is disclosed, comprising coating at least a portion of the wrapper with a coating of a sensor material.

According to a third aspect of the present invention, a smoking element for use in a non-combustion aerosol generating system manufactured in accordance with the second aspect is disclosed.

According to a fourth aspect of the present invention, there is disclosed a system comprising a smoking element according to the first or third aspects and a device for heating an aerosol-forming material.

Brief description of drawings

Various embodiments of the present invention will now be described in detail, by way of example only, with reference to the accompanying drawings, in which:

in fig. 1 is a cross-sectional view of a smoking element for use with a non-combustion aerosol generating device; the smoking element contains a mouthpiece;

in fig. 1a is a side view of a mouthpiece containing a wrapper and sensor material;

in fig. 1b is a top view of the flat sheet of wrapper shown in FIG. 1a;

in fig. 2a is a sectional view of yet another embodiment of a smoking element for use with a non-combustion aerosol generating device; the smoking element in this embodiment includes a capsule mouthpiece;

in fig. 2b is a sectional view of the capsule mouthpiece shown in FIG. 2a;

in fig. 3 is a perspective view of the smoking element shown in FIG. 1, 2a and 2b;

in fig. 4 - device shown in FIG. 3, without outer shell and smoking element;

in fig. 5 is a side view of the device shown in FIG. 3, in partial section;

in fig. 6 is an exploded view of the device shown in FIG. 3, without outer shell;

in fig. 7A is a sectional view of a portion of the device shown in FIG. 3;

in fig. 7B is an enlarged view of the area of the device highlighted in FIG. 7A; And

in fig. 8 is a flow diagram of a method for manufacturing a smoking element for use with a non-combustion aerosol generating device.

Carrying out the invention

As used herein, the term "delivery system" is used to refer to a variety of systems used to deliver a substance to the user, which include:

combustion aerosol-generating systems such as cigarettes, cigarillos, cigars and pipe tobacco, roll-your-own or homemade cigarettes (based on tobacco, tobacco derivatives, expanded tobacco, reconstituted tobacco, tobacco substitutes or other smoking materials);

non-combustion aerosol-generating systems that release substances from aerosol-forming material without burning the aerosol-forming material, such as electronic cigarettes, tobacco heating devices, and hybrid aerosol-generating systems using combinations of aerosol-forming materials;

smoking elements containing an aerosol-generating material and configured for use in one of such non-combustion aerosol-generating systems; And

non-aerosol delivery systems, such as tablets, chewing gums, patches, smoking elements containing inhalable powders, and smokeless tobacco products, such as snus and snuff, that deliver a substance to the user without generating an aerosol, which substance may or may not contain nicotine.

In the context of the present invention, a “combustion” aerosol generating system is considered to be a system in which the constituent aerosol-forming material of the aerosol generating system (or components thereof) is burned for delivery to the user.

In the context of the present invention, a “non-combustion” aerosol generating system is considered to be a system in which the aerosol-forming material constituents of the aerosol generating system (or components thereof) are not burned for delivery to the user. In embodiments described herein, the delivery system is a non-combustion aerosol generating system, such as a powered non-combustion aerosol generating system.

In one possible embodiment, the non-combustion aerosol generating system is an electronic cigarette, also referred to as a vaping device or electronic nicotine delivery system (ENDS), although it should be noted that the presence of nicotine in the aerosol-generating material is not required.

In one possible embodiment, the non-combustion aerosol generating system is a tobacco heating system, also referred to as a non-combustion heating system.

In one possible embodiment, the non-combustion aerosol generating system is a hybrid aerosol generating system using combinations of aerosol-forming materials, one or more of which can be heated. Each of the aerosol-forming materials may be in the form of a solid, liquid or gel, for example, and may or may not contain nicotine. In one possible embodiment, the hybrid system comprises a liquid or gel aerosol-forming material and a solid aerosol-forming material. The solid aerosol-forming material may comprise, for example, a tobacco or non-tobacco product.

Typically, the non-combustion aerosol generating system may include a non-combustion aerosol generating device and a smoking element for use in conjunction with the non-combustion aerosol generating system. However, it is contemplated that smoking elements that themselves contain means for driving the aerosol-generating component may themselves form a non-combustion aerosol-generating system.

In one possible embodiment, the non-combustion aerosol generating device may include a power source and a controller. The power source may be an electrical power source or an exothermic power source. In one possible embodiment, the exothermic power source includes a carbon substrate that can be activated so as to supply energy in the form of heat to the aerosol-forming material or heat transfer material in the vicinity of the exothermic power source. In one possible embodiment, a power source, such as an exothermic power source, is provided in the smoking element to form a non-combustion aerosol generating system.

In one possible embodiment, a smoking element for use with a non-combustion aerosol-generating device may comprise an aerosol-generating material, an aerosol-generating component, an aerosol-generating region, a mouthpiece, and/or an area for accommodating the aerosol-generating material.

In one possible embodiment, the aerosol generating component is a heater configured to interact with an aerosol-generating material to release one or more volatiles from the aerosol-generating material to form an aerosol. In one possible embodiment, the aerosol generating component may generate an aerosol from the aerosol-generating material without heating. For example, the aerosol-generating component may be configured to generate an aerosol from the aerosol-generating material without heating the aerosol-generating material, for example, through one or more vibration, mechanical, pressure, or electrostatic means.

In one possible embodiment, the aerosol-forming material may comprise an active material, an aerosol-forming material, and, optionally, one or more functional materials. The active material may contain nicotine (optionally found in tobacco or its derivatives) or one or more other odorless physiologically active substances. An odorless physiologically active substance is a substance included in the aerosol-forming material to achieve a physiological response other than olfactory perception.

The aerosol-forming material may contain one or more of the following substances, namely: glycerin, glycerol, propylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, 1,3-butylene glycol, erythritol, meso-erythritol, ethyl vanillin, ethyl laurate, diethyl suberate, triethyl citrate, triacetin, diacetate glycerin mixture, benzyl benzoate, benzyl phenylacetate, tributyrin, lauryl acetate, lauric acid, myristic acid and propylene carbonate.

The one or more functional materials may contain one or more of the following, namely: flavors, carriers, pH adjusters, stabilizers and/or antioxidants.

In one possible embodiment, a smoking element for use with a non-combustion aerosol-generating device may comprise an aerosol-forming material or an area for housing an aerosol-forming material. In one possible embodiment, a smoking element for use with a non-combustion aerosol generating device may include a mouthpiece. The area for placing the aerosolizable material may be an insertion area for inserting the aerosol-forming material. For example, the insertion area may be a container. In one of the possible implementation options, the area for placing the aerosol-forming material can be made separate from the aerosol generation area or combined with it.

An aerosol-forming material is a material capable of generating an aerosol, for example, when heated, exposed to radiation, or otherwise activated. The aerosol-forming material may be, for example, in the form of a solid, liquid or gel, and may or may not contain nicotine and/or flavorings. As stated above, the aerosol-forming material may be an "amorphous solid" or a "dried gel". In some embodiments, the amorphous solid may be a dried gel. An amorphous solid is a solid material capable of holding some fluids, such as a liquid, within itself. In some embodiments, the aerosol-forming material may comprise, for example, from about 50 wt%, 60 wt%, or 70 wt% amorphous solid to about 90 wt%, 95 wt%, or 100 wt% amorphous solid.

Aerosol-forming material may be present on the substrate. The substrate may be made of or contain, for example, paper, construction paper, cardboard, paperboard, recovered aerosol-forming material, plastic, ceramic material, composite material, glass, metal or metal alloy.

An aerosol modifying additive is a substance that is capable of modifying an aerosol when used. This agent can modify the aerosol in such a way as to create a physiological or sensory effect on the human body. Examples of aerosol modifying additives are flavors and sensor materials. The sensory material produces an organoleptic effect, such as a cold sensation or a sour taste, that can be perceived by the human senses.

A susceptor is a material that can heat up when a changing magnetic field, such as an alternating magnetic field, passes through it. The material to be heated may be an electrically conductive material, the passage of an alternating magnetic field through which causes inductive heating of the material being heated. The heated material may be a magnetic material, the passage of an alternating magnetic field through which causes magnetohysteretic heating of the heated material. The material to be heated can be both electrically conductive and magnetic, so that its heating is achieved by both of the above heating mechanisms.

Induction heating is a process in which an electrically conductive object is heated by passing an alternating magnetic field through it. This process is described by Faraday's law of induction and Ohm's law. The induction heater may include an electromagnet and a device for passing a varying electrical current, such as alternating current, through the electromagnet. When an electromagnet and an object to be heated are suitably positioned relative to each other such that the resulting alternating magnetic field generated by the electromagnet passes through the object, one or more eddy currents are generated in the object. An object has resistance to the passage of electric current. Thus, when such eddy currents are generated in an object, their passage within the object, overcoming its electrical resistance, results in heating of the object. This process is called Joule, ohmic or resistive heating. An object capable of inductively heating is called a current collector.

In one of the possible implementation options, the current collector is made in the form of a closed circuit. It has been found that when the current collector is configured in a closed circuit form, the magnetic interaction between the current collector and the electromagnet used is enhanced, resulting in increased or improved Joule heating.

Induction heating is a process in which an electrically conductive object is heated by passing an alternating magnetic field through it. A magnetic material can be thought of as a material containing a plurality of atomic-scale magnets or magnetic dipoles. When a magnetic field penetrates into such a material, the magnetic dipoles are aligned in accordance with the magnetic field lines. Thus, when a changing magnetic field, for example an alternating magnetic field generated by, for example, an electromagnet, penetrates a magnetic material, the orientation of the magnetic dipoles changes in accordance with the varying magnetic field applied. This reorientation of magnetic dipoles leads to the generation of heat in the magnetic material.

If an object is both electrically conductive and magnetic, exposure to a changing magnetic field can result in both Joule heating and magnetohysteresis heating. In addition, the use of magnetic material can enhance the magnetic field, which can lead to increased Joule heating.

In each of the above processes, heat is not supplied from an external source by conduction, but is generated directly within the object itself, and a rapid increase in temperature and a more uniform heat distribution can be achieved, in particular by choosing a suitable material and geometry of the object, as well as a suitable the magnitude of the magnetic field and its orientation relative to the object. In addition, because induction heating and magnetohysteresis heating do not require physical contact between the varying magnetic field source and the object, greater design choice and heating profile control are available, and cost savings are possible.

Smoking elements having, for example, a rod shape, and their formats are often designated depending on the length of the smoking element, namely: "standard" (length typically 68 - 75 mm, for example, from about 68 mm to about 72 mm) , "short" or "mini" (68 mm or less), "long" (typically 75 to 91 mm, e.g., approximately 79 mm to approximately 88 mm), "extra long" or "super long" (typically , 91 - 105 mm, for example, from about 94 mm to about 101 mm), and "extra long" (typically from about 110 mm to about 121 mm).

In addition, names are assigned to them depending on the circumference of the smoking element: “standard” (about 23 - 25 mm), “thick” (more than 25 mm), “thin” (about 22 - 23 mm), “semi-thin” (about 19 - 22 mm), "super thin" (about 16 - 19 mm), and "micro thin" (less than about 16 mm).

Accordingly, the long super thin format smoking element may have a length of, for example, about 83 mm and a circumference of about 17 mm.

The smoking element of each format can be manufactured with mouthpieces of different lengths. The length of the mouthpiece can range from about 30 mm to about 50 mm. The rim paper connects the mouthpiece to the aerosol-forming material and is typically longer than the mouthpiece, (eg, 3-10 mm longer) so that the rim paper covers the mouthpiece and overlaps the aerosol-forming material, for example, in the form of a rod of substrate material to connect the mouthpiece to the rod .

The smoking elements and their aerosol-forming materials and mouthpieces described herein can be manufactured in any of the above formats, without limitation.

As used herein, the terms "upstream/upstream" and "downstream/downstream" are relative expressions defined with respect to the direction of movement of the main stream of aerosol drawn through the smoking element or device during use.

The fibrous material described herein may be a tow of cellulose acetate fiber. The fiber tow can also be made from other materials used to create fibers, such as polyvinyl alcohol (PVA), polylactic acid (PLA), polycaprolactone (PCL), poly(1,4-butanediol succinate) (PBS), poly(butylene adipate) -coterephthalate) (PBAT), starchy materials, cotton, aliphatic polyester materials and polysaccharide polymers or combinations thereof. The fiber tow may be plasticized with a plasticizer suitable for the tow, such as triacetin, where the material is cellulose acetate fibers, or the tow may be unplasticized. The tow may have any suitable characteristics, for example the fiber may have a Y-shape or other cross-sectional shape such as an X-shape, the denier per filament may be from 2.5 to 15 deniers per filament, for example from 8, 0 to 11.0 denier per thread, and the "total denier" can be from 5,000 to 50,000, for example from 10,000 to 40,000.

As used herein, the term "tobacco material" is used to refer to any material containing tobacco, its derivatives or substitutes. The tobacco material may include one or more varieties of tobacco, tobacco derivatives, expanded tobacco, reconstituted tobacco, or tobacco substitutes. The tobacco material may contain one or more of the following components, namely: ground tobacco, tobacco fiber, cut tobacco, extruded tobacco, tobacco stem, tobacco leaves, reconstituted tobacco and/or tobacco extract.

As used herein, the terms "flavor" and "flavor" refer to substances that (to the extent permitted by local regulations) may be used to create the desired taste or aroma of a product for adult consumers. In some embodiments, the sensor material may contain or consist of a flavoring agent. One or more flavoring agents may be used in the aerosol enhancer described herein.

These may include extracts (e.g., licorice, hydrangea, Japanese white magnolia leaf, chamomile, fenugreek, clove, menthol, Japanese mint, aniseed, cinnamon, herbs, wintergreen, cherry, berries, peach, apple, Drambuie whiskey, bourbon, scotch whiskey, american whiskey, spearmint, peppermint, lavender, cardamom, celery, cascarilla, nutmeg, sandalwood, bergamot, geranium, honey essence, rose oil, vanilla, lemon oil, orange oil, cassia, cumin, French cognac, jasmine, allspice, sage, fennel, allspice, ginger, anise, coriander, coffee or mint oil of any type of mint family), flavor enhancers, bitter receptor inhibitors, taste bud activators or stimulants, sugar and/or sweeteners ( for example, sucralose, acesulfame potassium, aspartame, saccharin, cyclamates, lactose, sucrose, glucose, fructose, sorbitol or mannitol), and other additives such as charcoal, chlorophyll, mineral supplements, herbal extracts or breath fresheners. They may be imitation, synthetic or natural ingredients or mixtures thereof. They can be used in any available form, such as oil, liquid or powder.

In the accompanying drawings, the same, equivalent or similar elements or components are designated by the same reference numerals.

In fig. 1 is a cross-sectional view of a smoking element for use with an aerosol generating device 1, also referred to herein as a smoking element for use with a non-combustion aerosol generating device.

The smoking element 1 contains a mouthpiece 2 and a cylindrical rod 3 of aerosol-forming material (in this case, tobacco material) connected to the mouthpiece 2.

The tip wrap 5, here also referred to as tipping paper 5, is wrapped around the entire length of the tip 2, as well as around a portion of the aerosol-forming material rod 3, and contains an adhesive applied to the inner surface and serves to connect the tip 2 to the rod 3.

In this example, the tipping paper 5 covers 5 mm of the length of the rod 3 of the aerosol-forming material 3, but, alternatively, can cover the length of the rod 3 from 3 mm to 10 mm, more preferably from 4 mm to 6 mm, to ensure reliable connection of the mouthpiece 2 with rod 3. The density of the tipping paper 5 may be greater than the density of the ficelles used in the smoking element 1 for use with an aerosol generating device, for example, it may be from 40 g/m ² to 80 g/m ² , more preferably from 50 g / ^m2 to 70 g/ ^m2 ; in the embodiment under consideration, the density of the tipping paper is 58 g/m ² . It has been found that using tipping paper with a weight in the above ranges provides it with acceptable tensile strength while providing sufficient flexibility for wrapping around the smoking element 1 and bonding the tipping paper along the longitudinal overlap seam. The outer circumference length of the tipping paper 5 once wrapped around the mouthpiece 2 is approximately 21 mm.

According to some exemplary embodiments of the present invention, a smoking element for use in an aerosol generating system is disclosed, comprising an aerosol-forming material or substrate, a mouthpiece behind the aerosol-forming material, and a wrapper containing a sensor material.

The portion of the mouthpiece wrap 5 located near the proximal end of the mouthpiece 2 contacts the lips of the consumer during use.

As can be seen from Fig. 1a, the mouthpiece wrap 5 includes a first edge 5c that terminates at a proximal end 2b of the mouthpiece 2 and a second edge opposite the first edge 5c.

The wrapper 5 is configured to enclose at least a portion of the aerosol-generating material 3 and at least a portion of the smoking element mouthpiece 2 for use with the aerosol-generating device 1.

Thus, the mouthpiece wrap 5 is configured to be wrapped around the mouthpiece 2 and to enclose the mouthpiece 2 in the region between the distal end 2b and the proximal end 2a of the mouthpiece 2. The second edge 5d extends beyond the distal end 2a (not shown) mouthpiece 2 and extends partially above and around the aerosol-forming material 3 enclosed in the aerosol-forming material wrapper 10 (not shown), ending at a portion of the length of the aerosol-forming material wrapper 10 3. The mouthpiece wrapper 5 may be configured so that when the smoking element 1 is inserted into the heating element The device, part of the mouthpiece wrapper 5, was heated to the same or close to the temperature as the aerosol-forming material. In some embodiments, the first edge 5c of the tip wrapper 5 may form a portion of the tip wrapper located adjacent to the proximal end 2b of the tip wrapper, and the second edge 5d of the tip wrapper 5 may form a portion of the tip wrapper located adjacent to the aerosol-forming material 3.

The mouthpiece 5 contains sensor material 5a (shown as a shaded area). As indicated herein, the sensor material may contain a flavoring agent. In some embodiments, the flavor may contain extracts of licorice, rose oil, vanilla, lemon oil, orange oil, menthol, and/or peppermint oil from any variety of mint, such as peppermint and/or spearmint, as well as extracts of lavender, fennel, or anise. . In preferred embodiments, the sensor material contains sugars or sweeteners (eg, sucralose, acesulfame potassium, aspartame, saccharin, cyclamates, lactose, sucrose, glucose, fructose, sorbitol, or mannitol). Alternatively or additionally, the sensor material may contain a substance that provides the user with a sensation of cold, warmth, or a sour taste when using the smoking element.

The one or more functional materials may contain one or more of the following, namely pH adjusters, stabilizers and/or antioxidants. These materials can help to increase the shelf life of the mouthpiece wrapper 5 and, therefore, of the smoking element 1.

The sensor material may be enclosed in an encapsulating material. For example, the sensor material may be provided in the form of microcapsules applied to the wrapper 5. Encapsulation of the sensor material may provide various advantages. For example, as shown below, the sensor material may contain or consist of a flavoring agent having a particular taste or aroma. Encapsulation may provide extended retention of flavor and/or aroma.

In particular, encapsulation of the sensor material may extend the shelf life of the sensor material's aroma by enhancing the aroma perceived by the user. Thus, the aroma may continue to be detected by the user even after the aroma has diminished (eg, when the aroma is no longer detectable by the user or is less detectable by the consumer), thereby improving the user's experience.

Encapsulating the sensor material may also help mask other aromas that may be emitted from components of the smoking element for use in a non-combustion aerosol generating system before or during use.

The encapsulated sensory material may exhibit an aroma indicative of the taste of the sensory material. For example, this aroma may give the user an idea of the taste of the sensory material. This can help the user quickly determine the taste of the sensory material.

The mouthpiece wrap 5 may comprise an inner surface and an outer surface, and the sensor material may be present on at least a portion of the inner surface and/or the outer surface of the wrapper. As shown in FIG. 1a, the sensor material 5a may be located on the outer surface of the mouthpiece wrap 5 in an area that comes into contact with the user's lips during use. By placing the sensor material 5a on the outer surface of the mouthpiece wrap 5, the sensor material can be transferred to the user's lips during use. Transfer of sensor material to the lips of a consumer when using a smoking element may change the organoleptic properties (eg, taste) of the aerosol generated by the aerosol-forming material 3. For example, the sensor material 5a may impart flavor to the aerosol generated by the aerosol-forming material 3. The sensor material 5a may be at least partially soluble in water, so that it can be transferred to the consumer through his saliva.

In some embodiments, the sensor material 5a may contain an aerosol modifying additive, which may be a sensor material that volatilizes, for example, when exposed to heat generated by the smoking element 1. This may facilitate transfer of the sensor material 5a into the aerosol generated by the aerosol-forming material 3.

Alternatively or additionally, the sensor material 5a may also be located on the inner surface of the mouthpiece wrap 5. In such embodiments, the sensor material 5a may modify the aerosol generated by the aerosol-forming material 3 as it passes from the aerosol-forming material 3 to the downstream end of the mouthpiece 2.

The temperature of the mouthpiece 2 may be significantly higher than the temperature to which users might be accustomed when smoking, for example, conventional cigarettes. Because the tip wrap 5 is located around at least a portion of the aerosol-forming material 3 (which may be heated when the smoking element 1 is used) and around at least a portion of the tip 2 of the smoking element 1, the tip wrap 5 is heated when the smoking element 1 is used. In some embodiments, the temperature the portion of the mouthpiece wrapper 5 closest to the aerosol-forming material 3 increases to about 300°C, about 350°C, or about 400°C, or even higher, during use. In the area between the edge of the mouthpiece wrapper 5 closest to the aerosol-forming material 3 and the edge of the mouthpiece wrapper 5 closest to the mouthpiece 2 of the smoking element, the temperature of the mouthpiece wrapper 5 decreases. Compared to conventional cigarettes 1 and the like, the higher temperature of the mouthpiece 2 (and thus the mouthpiece wrapper 5) may facilitate the transfer of sensory material 5a to the consumer.

In some embodiments, the smoking element 1 is configured such that when the aerosol-forming material 3 is heated to a temperature greater than about 200°C, the temperature of the portion of the tip wrap 5 adjacent to the aerosol-forming material 3 increases by at least about 60% by at least about 60%. 70%, at least about 80%, or at least about 90% higher than the temperature of the portion of the mouthpiece wrapper 5 located adjacent to the proximal end of the mouthpiece.

In some embodiments, the temperature of the portion of the mouthpiece wrap 5 located adjacent to the proximal end of the mouthpiece 2 is from about 30°C to about 45°C. In a preferred embodiment, the temperature of the portion of the mouthpiece 5 located adjacent to the proximal end of the mouthpiece 2 is from about 36°C to 43°C.

The sensor material 5a may be located on a portion of the tip wrapper 5 that reaches a relatively high temperature (for example, on a portion of the tip wrapper 5 located adjacent to the aerosol-forming material). The sensor material 5a may become volatile at these higher temperatures when the smoking element 1 is used and modify the aerosol generated by the aerosol-generating material 3 (eg, by being entrained in the aerosol). This may change (eg improve) the organoleptic properties of the aerosol.

Alternatively or additionally, the sensor material 5a may be located on a portion of the tip wrap 5 adjacent to the mouthpiece 2 of the smoking element 1. This portion of the tip wrap 5 will be cooler than the portion of the tip wrap 5 adjacent the aerosol-forming material 3. This may be colder. a suitable location on the tip wrapper 5 for certain sensory materials, for example those that cannot tolerate high temperatures and/or those intended to be transferred directly from the outer surface of the tip wrapper 5 to the user's lips. The tip wrapper 5 may be impregnated with the sensor material 5a such that it is present on the outer surface of the tip wrapper 5, on the inner surface of the tip wrapper 5 or in the body of the tip wrapper 5.

The advantage of this solution is that a relatively small amount of sensor material 5a may be required to change the organoleptic properties obtained by the user when using the smoking element 1, although this will depend to some extent on the properties of the sensor material 5a, since the minimum amount required to change the sensory properties properties will vary between different sensor materials. The advantage of this solution also lies in the fact that the introduction of sensor material into the mouthpiece wrapper 5 will lead to only a slight increase in the total weight of the smoking element 1.

The tip wrap 5 may contain sensor material 5a in an amount of up to about 0.3 g/m ² by weight of the tip wrap 5, up to about 0.2 g/m ² by weight of the tip wrap 5, or up to about 0.1 g/m ² by weight of the tip wrap 5. the weight of the tip wrapper 5. The tip wrapper 5 may contain sensor material 5a in an amount of from about 0.01 g/m ² to about 0.3 g/m ² . In a preferred embodiment, the mouthpiece wrap 5 contains sensor material in an amount of from about 0.02 g/m ² to about 0.2 g/m ² .

There may be situations where it is desirable for about 100% of the inner surface area and/or outer surface to contain sensor material 5a. In other words, about 100% of the inner surface and/or outer surface can be covered with the sensor material 5a.

The sensor material 5a may not cover the entire area of the inner and/or outer surface of the tip wrapper 5. The area 5b of the tip wrapper 5 may be free or substantially free of sensor material 5a. In other words, some portion of the inner surface and/or outer surface may not contain sensor material 5a. By covering only certain portions of the inner and/or outer surface with sensor material and leaving the remaining portions of said surfaces free of sensor material, the cost of manufacturing the mouthpiece wrap 5 can be reduced.

In some embodiments, the portion of the wrapper located adjacent the aerosol-forming material or the proximal end of the mouthpiece contains the sensor material, and the portion of the wrapper located adjacent to another of the above (i.e., adjacent to the aerosol-forming material or adjacent the proximal end of the mouthpiece) does not contain sensory material.

In some embodiments, less than about 90%, 80%, 70%, 60%, 50%, 40%, 30%, 20%, or 10% of the inner surface area and/or outer surface contains sensor material 5a. The sensor material 5a may form a coating extending from the first edge of the tip wrap 5 to a distance of about 10%, about 20%, about 30%, about 40%, about 50%, about 60%, about 70%, about 80%, or about 90% on the internal and/or external surface.

The concentration of the sensor material 5a may vary in the direction from the first edge of the tip wrapper 5 to the portion of the tip wrapper 5 located adjacent to the sensor material. For example, on the portion of the tip wrap 5 located adjacent to the aerosol-forming material 3, the concentration of sensor material 5a may be relatively low, while on the portion of the tip wrap 5 located adjacent to the proximal end 2b of the mouthpiece 2, the concentration of sensor material 5a may be relatively low. high. The concentration of the sensor material 5a may gradually increase in the direction from the portion of the tip wrap 5 located adjacent to the aerosol-forming material 3 to the portion of the tip wrap 5 located adjacent to the proximal end 2b of the mouthpiece 2.

The mouthpiece wrapper 5 may contain at least one of the sensor materials 5a. If the tip wrapper 5 contains more than one sensor material 5a, the inner and/or outer surfaces of the tip wrapper 5 may contain a uniform mixture of sensor materials. Alternatively, sensor materials may be located on separate discrete areas of the inner and/or outer surfaces of the mouthpiece wrap 5. The use of more than one sensor material may allow the organoleptic properties of the aerosol generated by the aerosol-forming material 3 to be varied when using the smoking element 1, thereby improving the organoleptic properties of the aerosol .

The sensor material 5a may be applied to form a discontinuous coating on the inner and/or outer surfaces of the tip wrapper 5. The sensor material coating may form structures on the inner and/or outer surfaces of the tip wrapper 5. For example, the sensor material 5a may be applied to the outer surface of the mouthpiece wrapper 5 in the form of many discrete points or lines of sensory material.

As shown in FIG. 1b, the tip wrapper 5 contains a sensor material applied to the surface of a flat sheet of tip wrapper 5. The flat sheet of tip wrapper 5 can be wrapped around at least a portion of the tip wrapper 2 and at least a portion of the aerosol-forming material 3. This method can be used in the manufacture of a smoking element. 1, containing a mouthpiece wrapper 5.

The tip wrapper 5 may be manufactured by coating at least a portion of the tip wrapper 5 with a coating of sensor material 5a. In some embodiments, a coating of sensor material 5a is applied to at least a portion of the tip wrapper 5. This may be accomplished, for example, by printing sensor material onto the surface of the tip wrapper 5 or by dipping at least a portion of the tip wrapper 5 into the sensor material. Printing the sensor material on the surface of the tip wrapper 5 may be advantageous because it can provide a rapid method for producing the tip wrapper 5.

Preferably, the mouthpiece wrap 5 is made of a non-porous material whose permeability is, for example, less than about 100 CORESTA units, less than about 90 CORESTA units, less than about 80 CORESTA units, less than about 70 CORESTA units, less than about 60 CORESTA units, or less than about 50 CORESTA units. CORESTA. In a preferred embodiment, the permeability of the wrapper is less than about 60 CORESTA units. Forming the tip wrapper 5 from a non-porous material may help prevent sensor material from escaping from the tip wrapper 5 into other areas of the tip wrapper 2 during storage or use of the smoking element 1. For example, in cases where the sensor material is located on the outer surface of the tip wrapper 5, this may prevent its absorption into the body of the mouthpiece wrapper 5. This can increase the shelf life of the smoking element.

According to an aspect of the present invention, a method of making a smoking element for use with the above-described aerosol generating device is disclosed, comprising coating at least a portion of the wrapper with a coating of a sensor material. According to another aspect of the present invention, a smoking element for use with an aerosol generating device manufactured in accordance with the specified method is disclosed.

According to another aspect of the present invention, a system is disclosed including the above-described smoking element for use with an aerosol generating device and a device for heating the aerosol-generating material. The device may be configured to insert at least a portion of a smoking element containing an aerosol-forming material for use with an aerosol-generating device, heating a portion of a smoking element containing an aerosol-forming material for use with an aerosol-generating device, and generating an aerosol from the aerosol-generating device.

The device may be configured to heat the aerosol-forming material to at least 200°C such that the temperature of the portion of the wrapper adjacent to the aerosol-forming material is at least about 60%, at least about 70%, at least about 80% or at least about 90% higher than the temperature of the portion of the wrapper located adjacent to the proximal end of the mouthpiece.

The device may include a winding configured to heat a portion of the aerosol-generating material-containing smoking element for use with an aerosol-generating device.

Returning to FIG. 1, we see that the aerosol-generating material 3, also called aerosolizable substrate 3, contains at least one aerosol-generating material. In this example, glycerol is used as an aerosol-generating material. In alternative embodiments, other materials, as indicated below, or combinations thereof, may be used as the aerosol-generating material. The aerosol-generating material has been found to improve the organoleptic properties of the smoking element by helping to transfer complex compounds, such as flavoring agents, from the aerosol-generating material to the user. However, a problem with adding such aerosol-generating materials to the aerosol-generating material of a smoking element for use in a non-combustion aerosol-generating system may be that when the aerosol-generating material is aerosolized by heating, it may increase the mass of aerosol generated by the smoking element, and this increased mass can maintain a higher temperature when passing through the mouthpiece. As the aerosol passes through the mouthpiece, it transfers heat to the mouthpiece, resulting in heating of the outer surface of the mouthpiece, including the area in contact with the user's lips when using the device. The temperature of the mouthpiece may be significantly higher than the temperature to which the user may be accustomed when smoking, for example, conventional cigarettes, and this may be an undesirable effect when using such aerosol-generating materials.

As shown in FIG. 1, the mouthpiece 2 of the smoking element 1 has a distal end 2a located adjacent to the aerosol-forming material 3 and a proximal end 2b located further from the aerosol-forming material 3. The mouthpiece may include a hollow tube 4, also referred to herein as a hollow tubular element. As shown in FIG. 1, at the proximal end 2b of the mouthpiece 2 there is a hollow tubular member 4 made of a fiber tow. It has been found that such a configuration provides a significant reduction in the temperature of the outer surface of the mouthpiece 2 at the proximal end 2b of the mouthpiece in contact with the lips of the user when using the smoking element 1. In addition, it has also been found that the use of a tubular element 4 significantly reduces the temperature of the outer surface of the mouthpiece 2 even upstream, i.e. in front of the tubular element 4. Without being limited by this theoretical hypothesis, we hypothesize that the tubular element 4 causes the aerosol to pass into an area closer to the center of the mouthpiece 2, and therefore reduces the heat transfer from the aerosol to the outer surface of the mouthpiece 2.

In alternative embodiments, the mouthpiece 2 does not include a hollow tubular member 4. In such embodiments, the mouthpiece 2 may include a member of a material (not shown) that allows fluid to pass between the aerosol-forming material 3 and the proximal end 2b of the mouthpiece 2. For example, the mouthpiece may include a porous element such as a plug of filter material.

In the example under consideration, the smoking element 1 has an outer circumference of about 21 mm (i.e., this smoking element is “semi-thin”). In other embodiments, the smoking element may be made in any of the other formats described herein, for example, the length of its outer circumference may be from 15 mm to 25 mm. Since the smoking element must be heated to release the aerosol, increased heating efficiency can be achieved by using smoking elements with a smaller outer circumference length in the above range, for example, an outer circumference length less than 23 mm. Smoking elements with an outer circumference greater than 19 mm have been found to be most effective in increasing the efficiency of aerosol release by heating while maintaining an acceptable length of the product. Smoking elements with an outer circumference length of 19 mm to 23 mm, more preferably 20 mm to 22 mm, have been found to provide a good balance between providing aerosol generation efficiency and heating efficiency.

The length of the outer circumference of the mouthpiece 2 is practically equal to the length of the outer circumference of the rod of aerosol-forming material 3, so that there is a smooth transition between these components. In the example considered, the outer circumference of the mouthpiece 2 is approximately 20.8 mm.

In the exemplary embodiment, the tip wrap is wrapped around the entire length of the tip 2, as well as around a portion of the aerosol-forming material rod 3, and contains an adhesive applied to the inner surface that serves to connect the tip 2 to the rod 3. In the exemplary embodiment, the tip paper 5 covers 5 mm length of the rod 3 of the aerosol-forming material 3, but alternatively may span the length of the rod 3 from 3 mm to 10 mm, more preferably from 4 mm to 6 mm, to ensure reliable connection of the mouthpiece 2 with the rod 3. The density of the tipping paper 5 can be greater than the density of ficelles used in the smoking element 1, for example, it can be from 40 g/ ^m2 to 80 g/ ^m2 , more preferably from 50 g/ ^m2 to 70 g/ ^m2 ; in the embodiment under consideration, the density of the tipping paper is 58 g/m ² . It has been found that using tipping paper with a weight in the above ranges provides it with acceptable tensile strength while providing sufficient flexibility for wrapping around the smoking element 1 and bonding the tipping paper along the longitudinal overlap seam. The outer circumference length of the tipping paper 5 once wrapped around the mouthpiece 2 is approximately 21 mm.

By "wall thickness" of the hollow tubular element 4 is meant the wall thickness of the tube 4 in the radial direction. It can be measured, for example, using a caliper. Preferably, the wall thickness is more than 0.9 mm, more preferably 1.0 mm or more. Preferably, the wall thickness is substantially constant over the entire circumference of the wall of the hollow tubular member 4. However, if the wall thickness is not substantially constant, the wall thickness is preferably greater than 0.9 mm at any point along the circumference of the hollow tubular member, and more preferably, 1.0 mm or more.

Preferably, the length of the hollow tubular element 4 is less than about 20 mm. More preferably, the length of the hollow tubular element 4 is less than about 15 mm. Even more preferably, the length of the hollow tubular element 4 is less than about 10 mm. Alternatively or additionally, the length of the hollow tubular element 4 is at least about 5 mm. Preferably, the length of the hollow tubular element 4 is at least about 6 mm. In some preferred embodiments, the length of the hollow tubular member 4 is from about 5 mm to about 20 mm, more preferably from about 6 mm to about 10 mm, even more preferably from about 6 mm to about 8 mm, and most preferably, about 6 mm, 7 mm or 8 mm. In the example under consideration, the length of the hollow tubular element 4 is 6 mm.

Preferably, the density of the hollow tubular member 4 is at least about 0.25 grams per cubic centimeter (g/cm ³ ), more preferably at least about 0.3 g/cm ³ . Preferably, the density of the hollow tubular member 4 is less than about 0.75 grams per cubic centimeter (g/cm ³ ), more preferably less than 0.6 g/cm ³ . In some embodiments, the density of the hollow tubular element 4 is from 0.25 to 0.75 g/cm ³ , more preferably from 0.3 to 0.6 g/cm ³ , and more preferably from 0.4 g/cm 3 ³ to 0.6 g/ ^cm3 , or about 0.5 g/ ^cm3 . These densities have been found to optimally meet the above requirements for increased strength provided by denser material and reduced heat transfer provided by less dense material. In the context of the present invention, the density of the hollow tubular element 4 means the density of the fiber tow forming the element with any included plasticizer. The density of the hollow tubular element can be determined by dividing the total weight of the hollow tubular element 4 by the total volume of the hollow tubular element 4; in this case, the total volume can be calculated using the corresponding dimensions of the hollow tubular element 4, obtained, for example, using a caliper. If necessary, the corresponding dimensions can be obtained using a microscope.

The overall denier of the fiber tow forming the hollow tubular member 4 is preferably less than 45,000, more preferably less than 42,000. It has been found that these total denier values allow the tubular member 4 to be formed without being too dense. Preferably, the total denier is at least 20,000, more preferably at least 25,000. In preferred embodiments, the total denier of the fiber tow forming the hollow tubular element 4 is from 25,000 to 45,000, more preferably from 35,000 to 45,000. Preferably, the tow fibers have a Y-shaped cross-sectional shape, although other embodiments may use tow fibers with a different cross-sectional shape, such as an X-shaped cross-sectional shape.

Preferably, the filament denier of the fiber tow forming the hollow tubular element 4 is greater than 3. It has been found that this filament denier makes it possible to form a tubular element having a density that is not too high. Preferably, the filament denier is at least 4, more preferably at least 5. In preferred embodiments, the filament denier of the fiber tow forming the hollow tubular element 4 is from 4 to 10, more preferably from 4 to 9. B In a possible embodiment, the hollow tubular element 4 is made of 8Y40,000 cellulose acetate fiber tow containing 18% plasticizer, for example triacetin.

Preferably, the inner diameter of the hollow tubular member 4 is greater than 3.0 mm. The use of smaller diameter tubular elements may cause the speed of passage of the aerosol through the mouthpiece 2 to the user's mouth to increase beyond the desired value, such that the aerosol becomes too warm, reaching a temperature of, for example, more than 40°C or more than 45°C. More preferably, the inner diameter of the hollow tubular member 4 is greater than 3.1 mm, and even more preferably greater than 3.5 mm or 3.6 mm. In one possible embodiment, the inner diameter of the hollow tubular element 4 is about 3.9 mm.

Preferably, the hollow tubular element 4 contains from 15% by weight (wt.%) to 22% by weight (wt.%) plasticizer. The plasticizer used for cellulose acetate fibers is preferably triacetin, although other plasticizers such as polyethylene glycol (PEG) can be used. More preferably, the tubular member 4 contains from 16 wt.% to 20 wt.% plasticizer, for example, about 17 wt.%, about 18 wt.% or about 19 wt.% plasticizer.

The pressure drop or difference (also called draw resistance) across the mouthpiece, for example at the portion of the smoking element 1 downstream of the aerosol-forming material 3, is preferably less than 40 mm of water (mmH ₂ O). It has been found that such pressure drops allow a sufficient amount of aerosol, including desired compounds such as flavoring compounds, to pass through the mouthpiece 2 to the user. More preferably, the pressure drop across mouthpiece 2 is less than about 32 mmH ₂ O. In some embodiments, a particularly significantly improved aerosol has been obtained by using mouthpiece 2 with a pressure drop across it of less than 31 mmH ₂ O, for example, about 29 mmH ₂ O, about 28 mm H ₂ O or about 27.5 mm H ₂ O. Alternatively or additionally, the pressure drop across the mouthpiece may be at least 10 mm H ₂ O, preferably at least 15 mm H ₂ O and more preferably , at least 20 mm H ₂ O. In some embodiments, the pressure drop across the mouthpiece may be from about 15 mm H ₂ O to 40 mm H ₂ O. These pressure drop values across the mouthpiece 2 provide the ability to reduce the flow rate of the aerosol as it passes through mouthpiece 2 such that there is time for the temperature of the aerosol to decrease before it reaches the proximal end 2b of mouthpiece 2.

The mouthpiece 2 in the considered embodiment contains an element 6 of material (material element 6) located upstream of the hollow tubular element 4, in the considered case located next to the hollow tubular element 4 and closely adjacent to it. Both the material element 6 and the hollow tubular element 4 have a substantially cylindrical outer shape and a common longitudinal axis. The material element 6 is wrapped by the first ficelle 7. Preferably, the density of the first ficelle 7 is less than 50 g/m ² , more preferably from about 20 g/m ² to about 40 g/m ² . Preferably, the thickness of the first ficelle 7 is from 30 µm to 60 µm, more preferably from 35 µm to 45 µm. Preferably, the first ficelle 7 is non-porous and its permeability is, for example, less than 100 CORESTA units, for example, less than 50 CORESTA units. However, in other embodiments, the first ficell 7 may be porous and its permeability may be, for example, greater than 200 CORESTA units.

Preferably, the length of the material element 6 is less than about 15 mm. More preferably, the length of the material element 6 is less than about 10 mm. Alternatively or additionally, the length of the material element 6 is at least about 5 mm. Preferably, the length of the material element 6 is at least about 6 mm. In some preferred embodiments, the length of the material element 6 is from about 5 mm to about 15 mm, more preferably from about 6 mm to about 12 mm, even more preferably from about 6 mm to about 12 mm, and most preferably about 7 mm, 8 mm, 9 mm or 10 mm. In the example under consideration, the length of the material element 6 is 10 mm.

In the example under consideration, the material element 6 is made of a fiber tow. In the example considered, the tow from which the material element 6 is made has a denier per thread (d.p.f.) of 8.4 and a total denier of 21,000. Alternatively, the tow may, for example, have a denier per thread (d.p.f.) of 9.5 and a total denier of 12,000. In the example under consideration, the tow contains plasticized cellulose acetate fibers. The content of the plasticizer used in the tow is about 7% by weight of the tow. In this example, the plasticizer is triacetin. In other embodiments, other materials may be used to form the material element 6. For example, instead of a string, element 6 may be made of paper, for example similar to paper filters used in cigarettes. Alternatively, element 6 may be made of tows other than cellulose acetate, for example polylactic acid or other fiber tow materials specified herein, or other materials. Preferably, the fiber tow is made of cellulose acetate. Preferably, the tow, made from either cellulose acetate or other materials, has a d.p.f. at least 5, more preferably at least 6, and even more preferably at least 7. These deniers per filament allow for a tow with relatively thick, coarse fibers with less surface area, resulting in a lower pressure drop across the die 2 than when using harnesses with lower d.p.f. values. Preferably, in order to obtain a sufficiently uniform material element 6, the tow should have a denier per thread of no more than 12 d.p.f., preferably no more than 11 d.p.f., and even more preferably no more than 10 d.p.f.

Preferably, the total denier of the tow forming the material element 6 is no more than 30,000, more preferably no more than 28,000, and even more preferably no more than 25,000. These total denier values provide the ability to create a tow that occupies a smaller portion of the cross-sectional area of the die 2, resulting in a lower pressure drop across the mouthpiece 2 than using tows with higher total denier values. To obtain the required strength of the material element 6, the tow should preferably have a total denier of at least 8,000, and more preferably at least 10,000. Preferably, the denier per thread is from 5 to 12, while the total denier is from 10,000 to 25,000. More preferably, the denier per thread is from 6 to 10, while the total denier is from 11,000 to 22,000. Preferably, the tow fibers have a Y-shaped cross-sectional shape, although in other embodiments, tow fibers with a different cross-sectional shape, for example, an X-shaped cross-sectional shape, with the same d.p.f. values may be used. and total denier as specified herein.

In the exemplary embodiment, the hollow tubular element 4 is the first hollow tubular element 4, and the mouthpiece further includes a second hollow tubular element 8, also called a cooling element, located upstream of the first hollow tubular element 4. In the exemplary embodiment, the second hollow tubular element 8 is located upstream in front of material element 6 and tightly adjacent to it. Both the material element 6 and the second hollow tubular element 8 have a substantially cylindrical outer shape and a common longitudinal axis. The second hollow tubular member 8 is made of multiple layers of paper wound in parallel, with butt seams to form the tubular member 8. In the present embodiment, there are first and second layers of paper forming a two-layer tube, although in other embodiments 3, 4, and more paper layers forming 3-layer, 4-layer and more layer tubes. Other structures may be used, such as spirally wound layers of paper, paperboard, cardboard tubes, papier-mâché tubes, and molded, extruded or similar plastic tubes. The second hollow tubular element 8 may also be formed from dense ficelle and/or tipping paper, such as the second ficelle 9 and/or tipping paper 5 described herein, which means that a separate tubular element is not required. The dense ficella and/or tipping paper may be manufactured with a stiffness sufficient to withstand the axial compressive forces and bending moments that may occur during the manufacturing process and during use of the smoking element 1. For example, the density of the dense ficella and/or tipping paper may be from 70 g/ ^m2 to 120 g/ ^m2 , more preferably from 80 g/ ^m2 to 110 g/ ^m2 . Alternatively or additionally, the thickness of the dense ficelle and/or tipping paper may be from 80 μm to 200 μm, more preferably from 100 μm to 160 μm, or from 120 μm to 150 μm. It may be desirable for the parameters of the second ficelle 9 and the tipping paper 5 to be within the above ranges in order to achieve an acceptable level of stiffness for the second hollow tubular member 8.

Preferably, the wall thickness of the second hollow tubular element 8, which can be measured in the same way as the wall thickness of the first hollow tubular element 4, is from at least about 100 μm to about 1.5 mm, preferably from 100 μm to 1 mm, and more preferably from 150 µm to 500 µm, or about 300 µm. In the example under consideration, the wall thickness of the second hollow tubular element 8 is approximately 290 μm.

Preferably, the length of the second hollow tubular element 8 is less than about 50 mm. More preferably, the length of the second hollow tubular element 8 is less than about 40 mm. Even more preferably, the length of the second hollow tubular element 8 is less than about 30 mm. Alternatively or additionally, the length of the second hollow tubular element 8 is preferably at least about 10 mm. Preferably, the length of the second hollow tubular element 8 is at least about 15 mm. In some preferred embodiments, the length of the second hollow tubular element 8 is from about 20 mm to about 30 mm, more preferably from about 22 mm to about 28 mm, even more preferably from about 24 to about 26 mm, and most preferably about 25 mm. In the example under consideration, the length of the second hollow tubular element 8 is 25 mm.

The second hollow tubular element 8 is located around and forms an air gap inside the mouthpiece 2, which functions as a cooling element. This air gap provides a chamber through which the heated volatiles generated by the aerosol-forming material 3 pass. The second hollow tubular element 8 is made hollow to form a chamber for accumulating the aerosol, but at the same time to be rigid enough to withstand axial compressive forces and bending moments that may occur during the manufacturing process and during use of the smoking element 1. The second hollow tubular element 8 provides physical separation of the aerosol-forming material 3 from the material element 6. This physical separation created by the second hollow tubular element 8 provides a temperature gradient along the length of the second hollow tubular element 8.

Preferably, the mouthpiece 2 contains a cavity whose internal volume is more than 450 mm ³ . It has been found that creating a cavity of at least this volume allows for the creation of a higher quality aerosol. This cavity size provides sufficient space within the mouthpiece 2 to cool the heated volatile components, allowing the aerosol-forming material 3 to be exposed to a higher temperature than would otherwise be possible, which would result in the formation of an aerosol that is too warm. In the present example, the cavity is formed by the second hollow tubular element 8, but in alternative embodiments it may be formed by another part of the mouthpiece 2. More preferably, the mouthpiece 2 includes a cavity formed, for example, in the second hollow tubular element 8, the internal volume of which is more than 500 mm ³ , and even more preferably more than 550 mm ³ , which further improves the quality of the aerosol. In some embodiments, the internal cavity has a volume of from about 550 mm ³ to about 750 mm ³ , such as about 600 mm ³ or 700 mm ³ .

The second hollow tubular member 8 may be configured to provide a temperature difference of at least 40° C. between the heated volatile component entering the first, distal end of the second hollow tubular member 8 and the heated volatile component exiting the second, proximal end of the second hollow tubular member 8. element 8. Preferably, the second hollow tubular element 8 is configured to provide a temperature difference of at least 60°C, preferably at least 80°C and more preferably at least 100°C between the heated volatile component included in the first one. the distal end of the second hollow tubular element 8, and the heated volatile component emerging from the second, proximal end of the second hollow tubular element 8. This temperature difference along the length of the second hollow tubular element 8 protects the heat-sensitive material element 6 from the effects of high temperatures of the aerosol-forming material 3 when heated. .

In alternative embodiments of smoking elements, the second hollow tubular element 8 may be replaced by an alternative cooling element, for example, an element in the form of a material element that allows the aerosol to pass through it in the longitudinal direction, and which also has the function of cooling the aerosol.

In the present embodiment, the first hollow tubular element 4, the material element 6 and the second hollow tubular element 8 are combined by means of a second ficell 9, which is wrapped around all three of the above elements. Preferably, the density of the second ficelle 9 is less than 50 g/m ² , more preferably from about 20 g/m ² to about 45 g/m ² . Preferably, the thickness of the second ficelle 9 is from 30 µm to 60 µm, more preferably from 35 µm to 45 µm. Preferably, the second ficelle 9 is non-porous and its permeability is less than 100 CORESTA units, for example less than 50 CORESTA units. However, in other embodiments, the second ficell 9 may be porous and its permeability may be, for example, greater than 200 CORESTA units.

In this example, the aerosol-forming material 3 is enclosed in a wrapper 10. The wrapper 10 can be, for example, a paper or paper-based foil wrapper. In the present embodiment, the wrapper 10 is substantially airtight. In alternative embodiments, the permeability of the wrapper 10 is preferably less than 100 CORESTA units, more preferably less than 60 CORESTA units. Wraps with low permeability, e.g., less than 100 CORESTA units, more preferably less than 60 CORESTA units, have been found to provide improved aerosol generation in aerosol-forming material 3. Without being bound by theory, this may be due to reduced loss of aerosol compounds through the wrapper 10. The permeability of the wrapper 10 can be measured in accordance with the ISO 2965:2009 standard for determining the air permeability of materials used as cigarette paper, filter wrapper (ficella) and paper for attaching the filter to the cigarette.

In the embodiment under consideration, the wrapper 10 is made of aluminum foil. Aluminum foil has been found to be particularly effective in enhancing aerosol formation in aerosol-forming material 3. In the exemplary embodiment, the aluminum foil comprises a metal layer approximately 6 µm thick. In the embodiment under consideration, the aluminum foil has a paper backing. However, in alternative embodiments, the aluminum foil may have a different thickness, for example, from 4 microns to 16 microns. In addition, the aluminum foil does not necessarily have a paper backing, but may have a backing of other materials, for example, to provide adequate tensile strength to the foil, or may have no backing material. In addition to aluminum, metal layers or foils of other metals can also be used. The overall thickness of the wrapper is preferably from 20 µm to 60 µm, more preferably from 30 µm to 50 µm, to provide a wrapper with the required strength and heat transfer properties. The tensile force that can be applied to the wrapper before it breaks may be greater than 3,000 gram-force (gf), for example, from 3,000 gf to 10,000 gf or from 3,000 gf to 4,500 gf.

In addition to or as an alternative to applying the above-described sensor material 5a to the mouthpiece wrapper 5, the above-described sensor material may be applied to a wrapper 10 in which the aerosol-forming material is enclosed. For example, the sensor material may be applied to the wrapper 10 in the form of a coating, and/or the material of the wrapper 10 may be impregnated with the sensor material. The sensor material may be encapsulated in microcapsules, which may, for example, be used as a coating applied to the wrapper 10 or be present in the fiber structure of the wrapper 10. In these embodiments, the wrapper may comprise metal foil, such as aluminum foil. As stated above, the aluminum foil may contain a paper base.

The smoking element has a ventilation level of about 75% of the aerosol drawn through the smoking element. In alternative embodiments, the ventilation level of the smoking element may be from 50% to 80% of the aerosol drawn through the smoking element, for example, from 65% to 75%. Ventilation at such levels helps slow the flow of aerosol drawn through the mouthpiece 2, allowing the aerosol to cool sufficiently before it reaches the proximal end 2b of the mouthpiece 2. Ventilation is provided directly in the mouthpiece 2 of the smoking element 1. In the present embodiment, ventilation is provided in the second hollow tubular element 8, which has been found to be particularly effective in facilitating the aerosol generation process. Ventilation is provided by first and second parallel rows 12 of laser perforated holes, in this case located at a distance of 17.925 mm and 18.625 mm, respectively, from the downstream proximal end 2b of the mouthpiece 2. These perforations extend through the rim paper 5, a second ficell 9, and a second hollow tubular member 8. In alternative embodiments, ventilation may occur at the mouthpiece and other locations, for example, in the material member 6 or in the first tubular member 4.

In the exemplary embodiment, the aerosol-generating material added to the aerosol-generating material 3 constitutes 14 wt.% of the aerosol-generating material 3. Preferably, the aerosol-generating material contains at least 5 wt.% aerosol-generating material, more preferably at least 10%. Preferably, the aerosol-generating material contains less than 25% by weight of aerosol-generating material, more preferably less than 20%, such as 10% to 20%, 12% to 18%, or 13% to 16%.

Preferably, the aerosol-forming material 3 is made in the form of a cylindrical rod of aerosol-forming material. Regardless of the shape of the aerosol-forming material, its length is preferably from about 10 mm to about 100 mm. In some embodiments, the length of the aerosol-forming material is preferably from about 25 mm to about 50 mm, more preferably from about 30 mm to about 45 mm, and even more preferably from about 30 mm to about 40 mm.

The volume of aerosol-forming material 3 provided may vary from about 200 mm ³ to about 4300 mm ³ , preferably from about 500 mm ³ to about 1500 mm ³ , more preferably from about 1000 mm ³ to about 1300 mm ³ . It has been found that providing such volumes of aerosol-forming material, for example, from about 1000 mm ³ to about 1300 mm ³ , produces a superior aerosol having higher visibility and sensory properties compared to volumes selected from the lower values of the above range.

The mass of aerosol-forming material 3 provided may be greater than 200 mg, for example, from about 200 mg to about 400 mg, preferably from about 230 mg to about 360 mg, more preferably from about 250 mg to about 360 mg. In some embodiments, the weight of the aerosol-forming material is from about 250 mg to about 380 mg, from about 300 mg to about 360 mg, from about 320 mg to about 350 mg, or from about 330 mg to about 350 mg. It has been found that providing a larger mass of aerosol-forming material results in improved organoleptic properties compared to an aerosol generated from a smaller mass of tobacco material.

Preferably, the aerosol-forming material or substrate is formed from the tobacco material described above including a tobacco component. Preferably, the aerosol-forming material contains a tobacco component.

In the tobacco material described herein, the tobacco component preferably comprises reconstituted tobacco paper. The tobacco component may also comprise sheet tobacco, extruded tobacco and/or strip tobacco.

Aerosol-forming material 3 may comprise reconstituted tobacco material with a density of less than about 700 milligrams per cubic centimeter (mg/cm ³ ). Such tobacco material has been found to be particularly effective in creating an aerosol-forming material that can quickly heat up to release an aerosol compared to denser materials. For example, the inventors have tested the heating properties of various aerosol-forming materials, such as tape reconstituted tobacco material and paper reconstituted tobacco material. It has been found that for any given aerosol-forming material there is a certain zero heat flux temperature, below which the net heat flux when heating the material is endothermic, in other words, more heat enters the material than leaves it, and above which the net heat flux when heating the material is exothermic, i.e. More heat leaves the material than enters it. Materials with a density less than 700 mg/cm ³ had a lower zero heat flux temperature. Since a significant portion of the heat flow from the material is due to aerosol formation, the lower zero heat flow temperature has a positive effect on the time required for aerosol to begin to escape from the aerosol-forming material. For example, aerosol-forming materials with densities less than 700 mg/cm ³ were found to have zero-heat flux temperatures below 164°C, while aerosol-forming materials with densities greater than 700 mg/cm ³ had zero-heat flux temperatures above 164°C .

The density of the aerosol-forming material also affects the rate at which heat passes through the material; For materials with lower densities, for example, below 700 mg/cm ³ , the rate of heat transmission through the material is lower and, therefore, the release of the aerosol takes a longer time.

Preferably, the aerosol-forming material 3 contains reconstituted tobacco material with a density of less than about 700 mg/cm ³ , for example, paper reconstituted tobacco material. More preferably, aerosol-forming material 3 comprises reconstituted tobacco material with a density of less than about 600 mg/cm ³ . Alternatively or additionally, the aerosol-forming material 3 preferably comprises reconstituted tobacco material with a density of at least 350 mg/cm ³ which is believed to provide sufficient thermal conductivity of the material.

The tobacco material may be provided in the form of cut tobacco. The cut tobacco may have a cutting width of at least 15 cuts per inch (about 5.9 cuts per cm, which corresponds to a cut strip width of approximately 1.7 mm). Preferably, the cutting width of the cut tobacco is at least 18 cuts per inch (about 7.1 cuts per cm, corresponding to a cut tobacco strip width of approximately 1.4 mm), more preferably at least 20 cuts per inch (about 7. 9 cuts per cm, which corresponds to the width of the cut strip of tobacco approximately 1.27 mm). In an exemplary embodiment, the cutting width of the cut tobacco is 22 cuts per inch (about 8.7 cuts per cm, which corresponds to a cut width of the tobacco strip of approximately 1.15 mm). Preferably, the cutting width of the cut tobacco is 40 cuts per inch or less (about 15.7 cuts per cm, which corresponds to a cut tobacco strip width of approximately 0.64 mm). It has been found that a cutting width of 0.5 mm to 2.0 mm, for example 0.6 mm to 1.5 mm, or 0.6 mm to 1.7 mm, produces a tobacco material preferable to surface area to volume, particularly when heated, and in overall density and pressure drop across the material 3. Cut tobacco may be formed from a mixture of forms of tobacco material, for example a mixture of one or more forms, such as reconstituted tobacco paper, leaf tobacco, extruded tobacco and strip tobacco. Preferably, the tobacco material comprises reconstituted tobacco paper or a mixture of reconstituted tobacco paper and tobacco leaf.

The tobacco material described herein may contain filler. Typically, the filler is a non-tobacco component, i.e. a component that does not contain ingredients derived from tobacco. The filler may be a non-tobacco fiber such as wood fiber or pulp, or wheat fiber. Inorganic materials such as chalk, perlite, vermiculite, kieselguhr, colloidal silica, magnesium oxide, magnesium sulfate, magnesium carbonate can also be used as filler. The filler may also be a non-tobacco cast material or a non-tobacco extruded material. The filler content may be from 0 to 20% by weight of tobacco material or from 1 to 10% by weight of the composition. In some embodiments, there is no filler.

The tobacco material described herein contains an aerosol-generating material. In the context of the present invention, the term "aerosol-generating material" is used to refer to an agent that promotes the formation of an aerosol. The aerosol-generating material may promote aerosol formation by promoting the initial evaporation and/or condensation of gas in the solid and/or liquid particles of the respirable aerosol. In some embodiments, the aerosol-generating material may improve the delivery of aroma from the aerosol-generating material. In general, any suitable aerosol-generating material or aerosol-generating agents, including those specified herein, can be included in the aerosol-generating material of the present invention. Other aerosol-generating materials include, but are not limited to: polyols such as sorbitol, glycerin, and glycols such as propylene glycol or triethylene glycol; non-polyols such as monohydric alcohols, high boiling hydrocarbons, acids such as lactic acid, glycerol derivatives, esters such as diacetin, triacetin, triethylene glycol diacenate, triethyl citrate or myristates including ethyl myristate and isopropyl myristate and aliaphatic carboxylic acid esters such as methyl stearate, dimethyl dodecanedioate and dimethyl tetradecanedioate. In some embodiments, glycerol, propylene glycol, or a mixture of glycerol and propylene glycol may be used as the aerosol-generating material. The glycerol content may be from 10 to 20% by weight of the tobacco material, for example from 13 to 16% by weight of the composition or from 14 to 15% by weight of the composition. The propylene glycol content, if present, may range from 0.1 to 0.3 wt.% of the composition.

The aerosol-generating material may be included in any component, for example, any tobacco component of the tobacco material and/or filler, if any. Alternatively or additionally, the aerosol-generating material may be added separately to the tobacco material. But in any case, the total amount of aerosol-generating material in the tobacco material may be as specified herein.

The tobacco material may comprise from 10% to 90% by weight tobacco leaf, with the aerosol-generating material being provided in an amount of up to about 10% by weight tobacco leaf. It has been found that to achieve a total level of aerosol-generating material of 10% to 20% by weight of tobacco material, it can advantageously be added at a higher percentage by weight to another component of the tobacco material, such as reconstituted tobacco material.

The tobacco material described herein contains nicotine. The nicotine content is from 0.5 to 1.75 wt.% of the tobacco material and can be, for example, from 0.8 to 1.5 wt.% of the tobacco material. Alternatively or additionally, the tobacco material contains from 10% to 90% by weight tobacco leaf with a nicotine content of greater than 1.5% by weight of the tobacco leaf. In a preferred embodiment, the tobacco material contains leaf tobacco in an amount of from about 10% to about 30% by weight tobacco component. It has been found that the use of leaf tobacco with a nicotine content greater than 1.5% in combination with a base material with a lower nicotine content, such as reconstituted tobacco paper, is preferable and allows the creation of a tobacco material with a similar nicotine content, but better organoleptic properties. properties than using reconstituted tobacco paper alone. The nicotine content of leaf tobacco, for example cut tobacco, can range from 1.5% to 5% by weight of the leaf tobacco.

The tobacco material described herein may contain an aerosol modifying additive, such as any of the flavoring agents described herein. In one possible embodiment, the tobacco material contains menthol, forming a "menthol" smoking element. The tobacco material may contain from 3 mg to 20 mg menthol, preferably from 5 mg to 18 mg, and more preferably from 8 mg to 16 mg menthol. In the embodiment under consideration, the tobacco material contains 16 mg of menthol. The tobacco material may contain from 2% to 8% by weight menthol, preferably from 3% to 7% by weight menthol, and more preferably from 4% to 5.5% by weight menthol. In one possible embodiment, the tobacco material contains 4.7 wt.% menthol. Such high levels of menthol content can be achieved by using a high content of reconstituted tobacco material, for example, more than 50 wt.% tobacco material. Alternatively or additionally, the use of a large volume of aerosol-forming material, such as tobacco material, can increase the level of menthol content, which can be achieved, for example, by using more than about 500 mm ³ or a corresponding amount of more than about 1000 mm ³ of aerosol-forming material, such as tobacco material .

For the avoidance of doubt, it should be noted that where quantities herein are stated in percent by weight (wt%), they refer to dry weight unless specifically stated otherwise. Thus, any amount of water that may be present in the tobacco material or any component thereof is completely ignored when determining the percentage by weight (wt.%) content. The water content of the tobacco material described herein may vary and may be, for example, from 5 to 15% by weight. The water content of the tobacco material described herein may vary, for example, depending on changes in the temperature, pressure or humidity conditions under which the composition is stored. As is known to those skilled in the art, the water content can be determined by Karl Fischer analysis. On the other hand, for the avoidance of doubt, even when the aerosol-generating material is a liquid phase component such as glycerol or propylene glycol, the weight of the tobacco material includes the weight of any component other than water. However, if aerosol-generating material is present in the tobacco component of the tobacco material or in the filler (if any) of the tobacco material, instead of or added separately to the tobacco material, the aerosol-generating material is not included in the weight of the tobacco component or filler, but is included in the weight of the "aerosol" -generating material" in wt.%, as specified herein. All other ingredients present in the tobacco component are included in the weight of the tobacco component, even if they are non-tobacco (such as non-tobacco fiber in the case of reconstituted tobacco paper).

In a possible embodiment, the tobacco material comprises a tobacco component according to the present invention and an aerosol generating material according to the present invention. In an exemplary embodiment, the tobacco material consists primarily of a tobacco component of the present invention and an aerosol generating material of the present invention. In an exemplary embodiment, the tobacco material consists of a tobacco component according to the present invention and an aerosol generating material according to the present invention.

Reconstituted tobacco paper is contained in the tobacco component of the tobacco material according to the present invention in an amount of from 10% to 100% by weight of the tobacco component. Preferably, the tobacco component contains reconstituted tobacco material in an amount of from about 70% to about 90% by weight tobacco component. In possible embodiments, the reconstituted tobacco paper contains from 10% to 80% by weight, or from 20% to 70% by weight, tobacco component. In other possible embodiments, the tobacco component consists essentially of or consists of reconstituted tobacco paper. In preferred embodiments, leaf tobacco is contained in the tobacco component of the tobacco material in an amount of at least 10 wt.% tobacco component. For example, leaf tobacco may be present in an amount of at least 10% by weight of the tobacco component, while the remainder of the tobacco component includes reconstituted tobacco paper, reconstituted tobacco strip material, or a combination of reconstituted tobacco strip material and another form of tobacco, such as tobacco granules.

In a preferred embodiment, the tobacco component may comprise reconstituted tobacco material in an amount of from about 70% to about 90% by weight tobacco component. In some embodiments, the tobacco component comprises leaf tobacco in an amount of from about 10% to about 30% by weight tobacco component.

The term "reconstituted tobacco paper" refers to tobacco material produced by a process in which raw tobacco is extracted with a solvent to produce an extract of soluble substances and a residue containing fibrous material and then an extract (usually after concentration and, if necessary, after further processing) combines with the fibrous material from the residue (usually after grinding the fibrous material, and possibly adding some of the non-tobacco fibers) by applying the extract to the fibrous material. The joining process is similar to the paper making process.

The reconstituted tobacco paper can be any type of reconstituted tobacco paper known in the art. In a specific embodiment, reconstituted tobacco paper is made from raw materials containing one or more tobacco strips, tobacco stem, and whole leaf tobacco. In yet another possible embodiment, reconstituted tobacco paper is produced from raw materials containing tobacco strips and/or whole leaf tobacco and tobacco stem. However, in other embodiments, tobacco waste, fines, and screenings may alternatively or additionally be used as raw materials.

Reconstituted tobacco paper for use in the tobacco material of the present invention can be manufactured by methods known to those skilled in the art.

In fig. 2a is a cross-sectional view of another embodiment of a smoking element 1' containing a capsule mouthpiece 2'. In fig. 2b is a sectional view along plane A-A' of the capsule mouthpiece shown in FIG. 2a. The smoking element 1' and the capsule mouthpiece 2' are the same as the smoking element 1 and mouthpiece 2 shown in FIG. 1, except that the material element 6 contains an aerosol-modifying additive, in this case, in the form of a capsule 11, and also that the material element 6 is surrounded by an oil-impermeable first ficelle 7'. In some embodiments, the aerosol modifying agent may be encapsulated. In other embodiments, the aerosol inoculant may be present in other forms, for example, as a material injected into the material element 6 or applied to a thread carrying a flavor or other aerosol inoculant, which may also be placed in the material element 6. According to some possible embodiments, the material element contains an aerosol modifying additive located within the material element.

Capsule 11 may be a frangible capsule, for example, a capsule with a hard, frangible shell surrounding the liquid contents. In this embodiment, a single capsule 11 is used. The capsule 11 is completely enclosed within the material element 6. In other words, the capsule 11 is completely surrounded by the material from which the element 6 is made. In other embodiments, a plurality of frangible capsules may be placed within the material element 6, for example, 2.3 or more destructible capsules. The length of the material element 6 can be increased to accommodate the required number of capsules. In embodiments that use multiple capsules, the capsules may be the same or may differ from each other in size and/or content. In other embodiments, multiple material elements 6 may be provided, each of which contains one or more capsules.

Capsule 11 has a contents-shell structure. In other words, capsule 11 contains a shell surrounding a liquid agent, for example, a flavoring agent or other agent, which may be any of the flavoring agents or aerosol modifying agents of the present invention. The user may rupture the capsule shell to release a flavor or other agent into the material element 6. The first ficelle 7' may comprise a protective coating to make the ficelle material substantially impermeable to the liquid contents of the capsule 11. Alternatively or additionally, a second ficelle 9 and/or lining paper 5 may contain a protective coating that makes the material of the second ficelle and/or lining paper practically impermeable to the liquid contents of the capsule 11.

In the embodiment under consideration, the capsule 11 has a spherical shape and its diameter is about 3 mm. In other embodiments, the capsule may have other shapes and sizes. The total weight of capsule 11 may range from about 10 mg to about 50 mg.

In the embodiment under consideration, the capsule 11 is located in the center of the material element 6 in the longitudinal direction 6. Thus, the capsule 11 is located such that its center is at a distance of 4 mm from each edge of the material element 6. In other embodiments, the capsule 11 may be located in material element 6 not in the longitudinal-central position, but in other positions, i.e. closer to the proximal end of the material element 6 than to the distal end, or closer to the distal end of the material element 6 than to its proximal end.

Preferably, the mouthpiece 2' is designed in such a way that the capsule 11 and the ventilation holes 12 are offset relative to each other in the longitudinal direction in the mouthpiece 2'.

In fig. 2b shows a sectional view of the mouthpiece 2' along the plane A-A' (see FIG. 2a). In fig. 2b shows the capsule 11, the material element 6, the first and second ficells 7', 9 and the tipping paper 5. In the embodiment under consideration, the center of the capsule 11 is located on the longitudinal axis (not shown) of the mouthpiece 2'. The first and second ficells 7', 9 and the tipping paper 5 are arranged concentrically around the material element 6.

The destructible capsule 11 has a “contents-shell” structure. In other words, the encapsulating material or shell material forms a shell around the contents, which is the aerosol modifying agent. The shell structure prevents migration of the aerosol modifying additive during storage of the smoking element 1', but allows for a controlled release of the aerosol modifying additive, also called aerosol modifier, during use.

In some cases, the shell material (also referred to herein as encapsulating material) is brittle. The user breaks or otherwise destroys the capsule to release the encapsulated aerosol modifier. As a rule, the capsule is destroyed immediately before heating begins, but the user can choose a different time for releasing the aerosol modifier. The term "breakable capsule" is used to designate a capsule whose shell can be ruptured by applying pressure to release the contents; more specifically, the shell can be ruptured by pressure exerted by the user's fingers when the user wishes to release the contents of the capsule.

In some cases, the shell material is heat resistant. That is, in some cases, the shell material will not rupture, melt, or otherwise be destroyed by the temperature encountered at the capsule location during operation of the aerosol generating device. For example, the capsule located in the mouthpiece may be exposed to a temperature of from about 30°C to 100°C, and the shell material may continue to retain the liquid contents to a temperature of at least about 50°C to 120°C.

In other embodiments, the capsule may release its contents when heated, for example by melting the protective material or by swelling of the capsule causing the protective material to rupture.

The total weight of the capsule may be from about 1 mg to about 100 mg, in some cases from about 5 mg to about 60 mg, from about 8 mg to about 50 mg, from about 10 mg to about 20 mg, or from about 12 mg to about 18 mg.

The total weight of the capsule contents may be from about 2 mg to about 90 mg, in some cases from about 3 mg to about 70 mg, from about 5 mg to about 25 mg, from about 8 mg to about 20 mg, or from about 10 mg to approximately 15 mg.

As stated above, the capsule according to the present invention includes a content and a shell. The capsule crush strength may be from about 4.5 N to about 40 N, more preferably from about 5 N to about 30 N, or up to about 28 N (for example, from about 9.8 N to about 24.5 N). The tensile strength of the capsule can be determined by removing the capsule from the material element 6 and using a dynamometer to determine the force at which the capsule will burst when compressed between two flat metal plates. A suitable measuring device is the Sauter FK 50 dynamometer, which has a flat attachment that can be used to press the capsule against a flat, rigid surface similar to the surface of the attachment.

The capsule may have a substantially spherical shape and its diameter may be at least about 0.4 mm, 0.6 mm, 0.8 mm, 1.0 mm, 2.0 mm, 2.5 mm, 2.8 mm or 3.0 mm. The capsule diameter may be less than about 10.0 mm, 8.0 mm, 7.0 mm, 6.0 mm, 5.5 mm, 5.0 mm, 4.5 mm, 4.0 mm, 3.5 mm or 3.2 mm. For example, the capsule diameter may be from about 0.4 mm to about 10.0 mm, from about 0.8 mm to about 6.0 mm, from about 2.5 mm to about 5.5 mm, or from about 2.8 mm to approximately 3.2 mm. In some cases it may have a diameter of approximately 3.0 mm. These dimensions of the capsule are excellent for placement within the smoking element according to the present invention.

According to some embodiments, the material element can be made in the form of a cylinder with a longitudinal axis, and the capsule is built into the material element in such a way that the capsule is surrounded on all sides by the material of the element 6, and the capsule has a shell, inside which is enclosed a liquid aerosol modifying additive, wherein the largest cross-sectional area of the capsule, measured in a plane perpendicular to the longitudinal axis, is less than 28% of the cross-sectional area of the material element, measured in a plane perpendicular to the longitudinal axis.

In some embodiments, the largest cross-sectional area of the capsule 11 is less than 28%, more preferably less than 27%, and even more preferably less than 25% of the cross-sectional area of the portion of the mouthpiece 2' in which the capsule 11 is mounted. For example, for a spherical shaped capsule with a diameter of 3.0 mm, the largest cross-sectional area of the capsule is 7.07 mm ² . For a mouthpiece 2' with a circumference of 21 mm according to the present invention, the outer circumference of the material element 6 is 20.8 mm and the radius of the material element 6 will be 3.31 mm, which corresponds to a cross-sectional area of 34.43 mm ² . The cross-sectional area of the capsule in the embodiment under consideration is 20.5% of the cross-sectional area of the mouthpiece 2'. In another possible embodiment, if the capsule has a diameter of 3.2 mm, its largest cross-sectional area would be 8.04 mm ² . In this case, the cross-sectional area of the capsule will be 23.4% of the cross-sectional area of the material element 6. The advantage of a capsule with the largest cross-sectional area less than 28% of the cross-sectional area of the part of the mouthpiece 2' in which the capsule 11 is installed is that the difference The pressure on the mouthpiece 2' is reduced compared to capsules with a larger cross-sectional area, and there remains sufficient space around the capsule for the aerosol to pass without the material element 6 removing a significant amount of the aerosol mass as it passes through the mouthpiece 2'.

Preferably, the pressure drop (or difference) (also called draw resistance) across the smoking element, measured as the "open" pressure drop (i.e., the pressure drop when the vents are open), is reduced by less than 8 mm H ₂ O upon capsule rupture More preferably, the "open" pressure drop is reduced by less than 6 mm H ₂ O, even more preferably less than 5 mm H ₂ O. These values were obtained by taking measurements on at least 80 smoking elements of the same design. Such small changes in pressure differential mean that other aspects of the product design, such as setting the correct ventilation level for a given product pressure differential, can be achieved regardless of whether the user decides to destroy the capsule.

In some embodiments, when the aerosol-forming material 3 is heated to produce an aerosol, for example, in a non-combustion aerosol-generating device according to the present invention, the temperature of the capsule portion of the mouthpiece 2 reaches a value of between 58°C and 70°C during use of the system. to generate aerosol. As a result of this temperature, the contents of the capsule are heated enough to ensure the transition of the contents of the capsule, for example, an aerosol-modifying additive, into a volatile state, and its entry into the aerosol generated by the system when this aerosol passes through the mouthpiece 2. Heating of the contents of the capsule 11 can occur, for example , before the capsule 11 breaks, so that when the capsule 11 is broken, its contents are more easily released into the aerosol passing through the mouthpiece 2. Alternatively, the contents of the capsule 11 can be heated to this temperature after the capsule is broken, which also facilitates the delivery of the contents 11 capsules per aerosol. It has been found that a mouthpiece temperature in the range of 58°C to 70°C is high enough to easily release the contents of the capsule, but at the same time low enough so that the outer surface of the mouthpiece portion 2 in which the capsule is located does not become uncomfortably high for user when he touches the mouthpiece to rupture the capsule 11 by squeezing the mouthpiece 2.

The temperature of the portion of the mouthpiece 2 in which the capsule 11 is located can be measured using a digital thermometer with a probe configured to be inserted into the mouthpiece 2 through the wall of the mouthpiece 2 (thereby forming a seal that limits the amount of outside air that can leak into the mouthpiece around the umbrella ) at a location adjacent to the location of the capsule 11. Likewise, a temperature probe may be placed on the outer surface of the mouthpiece 2 to measure the temperature of the outer surface.

Table 1.0 below shows the temperature at the location of the capsule in the mouthpiece 2 of the smoking element used in the aerosol generating system when the user takes the first five puffs. The data is given for a smoking element heated by a coil heating device according to the present invention described with reference to FIGS. 3 - 7, when using a "standard" heating profile, and for a smoking element heated by the same device, using a "forced" heating profile. The forced heating profile is activated at the user's request and allows higher heating temperatures to be achieved.

As can be seen from Table 1.0, the temperature of the mouthpiece 2 in the area where the capsule 11 is located reaches a maximum temperature of 61.5°C with a standard heating profile and a maximum temperature of 63.8°C with a formed heating profile. It has been found that a maximum temperature in the range of 58°C to 70°C, preferably in the range of 59°C to 65°C, and more preferably in the range of 60°C to 65°C is particularly advantageous for transition to volatile state of the contents of the capsule 11 while maintaining a suitable temperature of the outer surface of the mouthpiece 2.

Table 1.0 Puff number T°C at capsule location when heated with a "winding" heating device at a standard heating profile T°C at the capsule location when heated using a "winding" heating device with a forced heating profile 1 58.5 54.7 2 56.5 60.5 3 61.5 63.8 4 57.2 53.0 5 52.9 46.7

The capsule 11 is destroyed by external force applied to the mouthpiece 2, for example by a user using his fingers or some other mechanism to compress the mouthpiece 2. As stated above, the portion of the mouthpiece in which the capsule is located must reach a temperature above 58 °C when using an aerosol generating system to generate aerosol. Preferably, the tensile strength of the capsule 11 placed inside the mouthpiece 2 and before heating the aerosol-forming material 3 is from 1500 gf to 4000 gf. Preferably, the tensile strength of the capsule 11 located inside the mouthpiece 2 and within 30 seconds from the time the aerosol generating system is used to generate an aerosol is from 1000 gf to 4000 gf. Accordingly, despite being exposed to temperatures above 58°C, such as from 58°C to 70°C, the capsule 11 can maintain tensile strength in a range that has been found to allow the user to easily crush the capsule 11 while providing the user with sufficient tactile feedback indicating that capsule 11 has been crushed. Maintaining such tensile strength is achieved by selecting a suitable gelling agent for the capsule of the present invention, such as, for example, a polysaccharide including, for example, gum arabic, gellan gum, acacia gum, xanthan gum or carrageenins, alone or in combination with gelatin. In addition, the appropriate wall thickness of the capsule shell should be selected.

Preferably, the tensile strength of the capsule 11 placed inside the mouthpiece and before heating of the aerosol-forming material begins is from 2000 gf to 3500 gf, or from 2500 gf to 3500 gf. Preferably, the tensile strength of the capsule located within the mouthpiece and within 30 seconds from the start of use of the aerosol generating system to generate the aerosol is from 1500 gf to 4000 gf, or from 1750 gf to 3000 gf. In an exemplary embodiment, the average tensile strength of the capsule located within the mouthpiece and before heating of the aerosol-generating material begins is approximately 3175 gf, and the average tensile strength of the capsule located within the mouthpiece and within 30 seconds of the start of use of the aerosol generating system is approximately 2345 gs.

The tensile strength of the capsule can be determined using a force measuring instrument such as a texture meter. To determine the above tensile strength values, a TA.XTPlus texturometer was used with a round metal probe with a diameter of 6 mm, which was installed in the center of the capsule location area (i.e., at a distance of 12 mm from the proximal end of the mouthpiece 2).

The testing speed of the umbrella was 0.3 mm/s, while the pre-test speed was 5.00 mm/s and the post-test speed was 10 mm/s. The force used was 5000 g. Drawing through the test smoking elements was carried out using a Borgwaldt A14 syringe infusion unit in accordance with the known Health Canada "heavy puff" mode (55 ml puff volume taken for 2 seconds every 30 seconds) using standard testing equipment . In this tightening mode, three puffs were made and the tensile strength of the capsule was measured within 30 seconds of the third puff. The smoking element tested was similar to smoking element 1 shown in FIG. 1a and 1b and described in detail below, except that at the proximal end of the mouthpiece there was provided a hollow tubular element 4 with a diameter of 8 mm, made of two layers of paper glued together, each of which was joined to itself by a butt seam, and a common the wall thickness was 300 µm. The capsule was a 3 mm diameter capsule located inside an 8 mm long cellulose acetate fiber material element with a tow rating of 9.5Y12,000 and a target 9% triacetin plasticizer.

The shell material may contain one or more gelling agents, a filler, a buffering agent, a colorant, and a plasticizer.

Preferably, the gelling agent may be, for example, a polysaccharide or cellulosic gelling agent, gelatin, gum, gel, wax or a mixture of the above. Suitable polysaccharides include alginates, dextrins, maltodextrins, cyclodextrins and pectins. Suitable alginates include, for example, an alginic acid salt, an esterified alginate or a glyceryl alginate. Alginic acid salts include ammonium alginate, triethanoamine alginate, and Group I or II metal alginates such as sodium, potassium, calcium, and magnesium alginate. Esterified alginates include propylene glycol alginate and glyceryl alginate. In a possible embodiment, the shell material is made of sodium alginate and/or calcium alginate. Suitable cellulose materials include methylcellulose, ethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, carboxymethylcellulose, cellulose acetate and cellulose ethers.

The gelling agent may contain one or more modified starches. The gelling agent may contain carrageenins. Suitable gums include agar, gellan gum, gum arabic, pullulan gum, mannan gum, gum gum, tragacanth gum, karaya, locust bean, acacia gum, guar, quince seeds and xanthan gum. Suitable gelling agents include agar, agarose, carrageenins, furoidan and furcellaran. Suitable waxes include carnauba wax. In some cases, the gelling agent may contain carrageenins and/or gellan gum; these substances are particularly well suited for use as a gelling agent because they are particularly good at providing the pressure necessary to crush the resulting capsules.

The casing material may contain one or more fillers such as starches, modified starches (such as oxidized starches) and sugar alcohols such as maltitol.

The shell material may contain a dye that facilitates placement of the capsule in the aerosol generating device during its manufacture. Preferably, the dye is selected from among dyes and pigments.

The coating material may further contain at least one buffering agent, such as a citrate or phosphate compound.

The shell material may additionally contain at least one plasticizer, which can be glycerol, sorbitol, maltitol, triacetin, polyethylene glycol, propylene glycol or another polyalcohol having plasticizing properties, and, if necessary, one acid (monoacid, diacid or triacid) , in particular citric acid, fumaric acid, malic acid and the like. The amount of plasticizer varies from 1 wt% to 30 wt%, preferably from 2 wt% to 15 wt%, even more preferably from 3 wt% to 10 wt% of the total dry weight of the shell.

The shell material may also contain one or more filler materials. Suitable fillers include starch derivatives such as dextrin, maltodextrin, cyclodextrin (alpha, beta or gamma), or cellulose derivatives such as hydroxypropyl methylcellulose (HPMC), hydroxypropylcellulose (HPC), methylcellulose (MC), carboxymethylcellulose (CMC), polyvinyl alcohol, polyol or mixtures thereof. The preferred filler is dextrin. The amount of filler in the shell is not more than 98.5 wt%, preferably from 25 wt% to 95 wt%, more preferably from 40 wt% to 80 wt%, even more preferably from 50 wt%. up to 60 wt.% of the total dry weight of the casing.

The capsule shell may further comprise a hydrophobic outer layer which reduces the capsule's susceptibility to degradation by moisture. The hydrophobic outer layer is selected from the group of suitable materials containing waxes, in particular carnauba wax, candelilla wax, beeswax, carbowax, shellac (in alcoholic or aqueous solution), ethylcellulose, hydroxypropylmethylcellulose, methylcellulose, hydroxylpropylcellulose, filled latex, polyvinyl alcohol, or a combination the above substances. More preferably, the at least one moisture barrier agent is ethylcellulose or a mixture of ethylcellulose and shellac.

There is an aerosol modifier inside the capsule. Any volatile substance that changes at least one property of the aerosol can be used as an aerosol modifier. For example, an aerosol modifier can change pH, sensory properties, water content, delivery characteristics, or flavor. In some cases, the aerosol modifier may be selected from such substances as an acid, a base, water or a flavoring agent. In some embodiments, the aerosol inoculant contains one or more flavoring agents.

In some embodiments, the flavor may contain extracts of licorice, rose oil, vanilla, lemon oil, orange oil, menthol, and/or peppermint oil from any variety of mint, such as peppermint and/or spearmint, as well as extracts of lavender, fennel, or anise. .

In some cases, the flavor contains menthol.

In some cases, the capsule may contain at least about 25% wt.% flavoring (based on the total weight of the capsule), optionally at least about 30% wt.%, 35% wt.%, 40% wt.%, 45% wt.% or 50% wt.% flavoring.

In some cases, the contents of the capsule may contain at least about 25% wt.% flavoring (based on the total weight of the contents), optionally at least about 30% wt.%, 35% wt.%, 40% wt.% , 45% wt.% or 50% wt.% flavoring. In some cases, the contents of the capsule may contain less than or equal to up to about 75% wt.% flavor (based on the total weight of the contents), optionally less than or equal to about 65% wt.%, 55% wt.% or 50% wt. .% flavoring. For example, the capsule may contain flavoring in an amount of 25-75 wt.% (based on the total weight of the contents), about 35-60 wt.%, or about 40-55 wt.%.

The capsules may contain at least about 2 mg, 3 mg, or 4 mg of aerosol inoculant, optionally at least about 4.5 mg of aerosol inoculant, 5 mg of aerosol inoculant, 5.5 mg of aerosol inoculant, or 6 mg of aerosol inoculant.

In some cases, the consumable element contains at least about 7 mg of aerosol inoculant, optionally at least about 8 mg of aerosol inoculant, 10 mg of aerosol inoculant, 12 mg of aerosol inoculant, or 15 mg of aerosol inoculant. The contents of the capsule may also include a solvent that dissolves the aerosol modifier.

Any suitable solvent may be used.

In cases where the aerosol modifier contains a flavoring agent, the solvent may, respectively, contain short-chain or medium-chain fats and oils. For example, the solvent may contain glycerol triesters such as C2-C12 triglycerides, optionally C6-C10 or Cs-C12 triglycerides. For example, the solvent may contain medium chain triglycerides (MCT-C8-C12), which may be derived from palm and/or coconut oil.

Esters can be prepared using caprylic acid and/or capric acid. For example, the solvent may contain medium chain triglycerides, which are caprylic triglycerides and/or capric triglycerides. For example, the solvent may contain compounds designated in the CAS register by numbers 73398-61-5, 65381-09-1, 85409-09-2. These medium chain triglycerides are odorless and tasteless.

The hydrophilic-lipophilic balance (HLB) of the solvent may range from 9 to 13, optionally from 10 to 12. Methods for preparing capsules include co-extrusion, optionally followed by centrifugation, curing and/or drying. The contents of the corresponding application WO 2007/010407 A2 are incorporated herein by reference in their entirety.

In the embodiments described above, each of the mouthpieces 2, 2' contains one material element 6. In other embodiments, each of the mouthpieces shown in FIGS. 1 or fig. 2a and 2b may contain several material elements. The mouthpieces 2, 2' may contain a cavity between the material elements.

In some embodiments, the mouthpiece 2, 2' downstream of the aerosol-forming material 3 may comprise a wrapper, such as a first or second ficell 7, 9, or a tipping paper 5, containing the aerosol-modifying additive of the present invention. The aerosol modifying additive may be located on the inner or outer surface of the mouthpiece wrapper. For example, the aerosol inoculant may be applied to the area of the wrapper, such as the outer surface of the tipping paper 5, that comes into contact with the lips of the consumer when using the device. By applying the aerosol builder to the outer surface of the mouthpiece wrap, the aerosol builder may be transferred to the user's lips during use. Transfer of the aerosol-modifying additive to the user's lips during use of the smoking element may alter the organoleptic properties (eg, taste) of the aerosol generated by the aerosol-forming material 3 or otherwise provide an alternative sensory experience to the user. For example, the aerosol enhancer may impart a flavor to the aerosol generated by the aerosol-forming material 3. The aerosol enhancer may be at least partially soluble in water such that it can be transferred to the user through his saliva. The aerosol modifying agent may be an agent that is converted to a volatile state under the influence of heat generated by the aerosol generating system. This may facilitate the transfer of the aerosol-modifying additive into the aerosol generated by the aerosol-forming material 3.

To heat the aerosol-forming material 3 of the smoking element 1, 1' according to the present invention, a non-burning aerosol generating device is used. The non-combustion aerosol generating device preferably includes a winding as this has been found to provide improved heat transfer to the smoking element 1, 1' compared to other devices.

In some embodiments, the winding is configured to provide heating to the at least one electrically conductive heating element during operation such that thermal energy from the at least one electrically conductive heating element is transferred to the aerosol-forming material to heat it.

In some embodiments, the winding is configured to generate, during operation, a varying magnetic field that, when passed through the at least one heating element, inductively heats and/or magnetohysteresis heats the at least one heating element. With such a device configuration, said or each of said heating elements may be referred to as a "susceptor", as it is called in the present invention. A winding configured to create, during operation, a varying magnetic field that penetrates the at least one electrically conductive heating element to cause inductive heating of the at least one electrically conductive heating element may be referred to as an "induction winding."

Such a device may comprise heating element(s), for example electrically conductive heating element(s), wherein the heating element(s) may preferably be positioned or moveable relative to the winding in such a manner that to enable such heating of the heating element(s). The heating element(s) may be located in a fixed position relative to the winding(s). Alternatively, at least one heating element, for example at least one electrically conductive heating element, may be included in the smoking element 1, 1' for insertion into the heating zone of the device, wherein the smoking element 1, 1' also contains an aerosol-forming material 3 and can be removed from the heating zone after use. Alternatively, both the device and the smoking element 1, 1' may comprise at least one suitable heating element, for example at least one electrically conductive heating element, and the winding may provide heating to the heating element(s) of both the device and and a smoking element when the smoking element is in the heating zone.

In some embodiments, the winding has a helical shape. In some embodiments, the winding extends around at least a portion of the heating zone of the device, configured to insert an aerosol-forming material therein. In some embodiments, the winding is a helical winding surrounding at least a portion of the heating zone.

In some embodiments, the device includes an electrically conductive heating element at least partially surrounding a heating zone, and the winding is a helical coil surrounding at least a portion of the electrically conductive heating element. In some embodiments, the electrically conductive heating element is tubular in shape. In some embodiments, the winding is an inductive winding.

In some embodiments, the use of a winding allows a non-combustion aerosol generating device to reach operating temperature faster than an aerosol generating device without a winding would. For example, a non-combustion aerosol generating device with the winding described above can reach operating temperature such that the user can take the first puff in less than 30 seconds after starting the heating program, more preferably in less than 25 seconds. In some embodiments, the device may reach operating temperature approximately 20 seconds after the device warm-up program is initiated.

It has been found that the use of a winding according to the present invention in an apparatus for heating an aerosol-forming material improves the quality of the generated aerosol. For example, users have reported that the aerosol generated by the coiled device of the present invention is sensorially closer to the aerosol produced by commercially manufactured cigarette products (CIFIs) than the aerosol generated by other non-combustion aerosol generating systems. Without resorting to theory, this is believed to be a result of the reduced time to reach a given heating temperature when using a winding, the higher heating temperatures achievable when using a winding, and/or the fact that the winding allows such systems to simultaneously heat a relatively large volume of aerosol-forming material , as a result of which the temperature of the aerosol becomes close to the temperature of the aerosol generated by SIFI. In CIFI, the combustion of coal provides heating to the aerosol, which heats the tobacco in the tobacco rod behind the coal as the aerosol is drawn through the rod. This hot aerosol is thought to release flavoring compounds from the tobacco in the rod behind the burning charcoal. It is believed that the device containing the coil of the present invention can also heat an aerosol-forming material, such as the tobacco material of the present invention, to release flavoring compounds, resulting in an aerosol that has been reported to be more like a CIFI aerosol.

The use of an aerosol generating system comprising a winding according to the present invention, for example an induction winding, heating at least a portion of the aerosol-generating material to a temperature of at least 200°C, more preferably at least 220°C, can enable the generation of an aerosol from an aerosol-forming material having specific characteristics believed to be closer to those of CIFI. For example, when heating an aerosol-forming material containing nicotine using an induction heater heating to at least 250°C in two seconds, with an air flow rate of at least 1.50 l/m during this period, one or more of the following were observed: characteristics:

at least 10 μg of nicotine is aerosolized from the aerosol-forming material;

the weight ratio of the aerosol-generating material to nicotine in the generated aerosol is at least about 2.5:1, in some cases at least 8.5:1;

at least 100 μg of aerosol-generating material can be aerosolized from the aerosol-generating material;

the average particle or droplet size in the generated aerosol is less than about 1000 nm; And

the aerosol density is at least 0.1 μg/cm ³ .

In some cases, at least 10 μg of nicotine, optionally at least 30 μg or 40 μg of nicotine, is aerosolized from the aerosol-forming material at an air flow rate of at least 150 l/m during this period. In some cases, less than about 200 μg, optionally less than about 150 μg, or less than about 125 μg of nicotine from the aerosol-forming material at an air flow rate of at least 150 l/m during this period.

In some cases, the aerosol aerosolized from the aerosol-generating material at an air flow rate of at least 150 l/m during this period contains at least 100 μg of aerosol-generating material, optionally at least 200 μg, 500 μg or 1 mg aerosol - generating material. Preferably, the aerosol-generating material may contain or consist of glycerol.

As used herein, the term "average particle or droplet size" refers to the average size of solid particles or droplets of an aerosol (ie, components suspended in a gas). In cases where the aerosol contains both suspended liquid droplets and suspended solid particles, the above term refers to the average size of all components combined.

In some cases, the average particle or droplet size in the generated aerosol may be less than about 900 nm, 800 nm, 700 nm, 600 nm, 500 nm, 450 nm, or 400 nm. In some cases, the average particle or droplet size may be greater than about 25 nm, 50 nm, or 100 nm.

In some cases, the density of the aerosol generated during the specified period is at least 0.1 μg/cm ³ . In some cases, the aerosol density is at least 0.2 μg/cm ³ , 0.3 μg/cm ³ or 0.4 μg/cm ³ . In some cases, the aerosol density is less than about 2.5 μg/cm ³ , 2.0 μg/cm ³ , 1.5 μg/cm ³ or 1.0 μg/cm ³ . Preferably, the non-burning aerosol-generating device is configured to heat the aerosol-forming material 3 of the smoking element 1, 1' to a maximum temperature of at least 160°C. Preferably, the non-burning aerosol-generating device is configured to heat the aerosol-forming material 3 of the smoking element 1, 1' to a maximum temperature of at least about 200°C, or at least about 220°C, or at least about 240°C, or more preferably at least about 270°C, at least once during the heating process performed by the non-combustion aerosol generating device.

The use of an aerosol generating system with a winding according to the present invention, for example an induction winding, heating at least a portion of the aerosol-forming material to a temperature of at least 200°C, more preferably at least 220°C, can enable the generation of an aerosol from the aerosol-forming material. material in the smoking element 1, 1' according to the present invention, having a higher temperature when exiting the proximal end of the mouthpiece 2, 2' than in existing devices, which contributes to the generation of an aerosol having characteristics closer to CIFI. For example, the maximum temperature of the aerosol measured at the proximal end of the smoking element 1, 1' may preferably be above 50°C, more preferably above 55°C, and even more preferably above 56°C or 57°C. Alternatively or additionally, the maximum temperature of the aerosol measured at the proximal end of the smoking element 1, 1' may be below 62°C, more preferably below 60°C, and even more preferably below 59°C. In some embodiments, the maximum aerosol temperature measured at the proximal end of the smoking element 1, 1' may preferably be from 50°C to 62°C, more preferably from 56°C to 60°C.

In fig. 3 shows a possible embodiment of a non-combustion aerosol generating device 100 for generating an aerosol from an aerosol-forming material such as the aerosol-forming material 3 used in the smoking elements 1,1' according to the present invention. In principle, the device 100 can be used to heat a replaceable smoking element 110 containing an aerosol-generating material, for example, smoking elements 1, 1' according to the present invention, to generate an aerosol or some other inhalable medium inhaled by the user of the device 100. The device 100 and the replaceable the smoking element 110 together form a system.

The device 100 includes a housing 102 (in the form of an outer shell) surrounding and housing various components of the device 100. The device 100 includes an opening 104 located at one of its ends through which a smoking element 110 can be inserted and heated by a heating block. During operation, the smoking element 110 may be fully or partially inserted into a heating block in which it may be heated by one or more components of the heating block.

The device 100 in the present embodiment includes a first end member 106 including a cover 108 movable relative to the first end member 106 to cover the opening 104 when the smoking element 110 is not inserted. In fig. 3, cover 108 is shown in an open position, however, cover 108 can be moved to a closed position. For example, the user may slide the cover 108 in the direction of arrow "B".

The device 100 may also include a user-activated control element 112, such as a button or switch, that when pressed turns the device 100 on. For example, a user may turn on device 100 using switch 112.

The device 100 may also include an electrical component, such as a connector/input 114, into which a cable may be inserted to charge the battery of the device 100. For example, the connector 114 may be a charging connector, such as a USB charging connector.

In fig. 4 shows the device 100 shown in FIG. 3, with the outer shell 102 removed and the smoking element 110 removed. The device 100 has a longitudinal axis 134.

As shown in FIG. 4, a first end member 106 is located at one end of the device 100, and a second end member 116 is located at the other end of the device 100. The first and second end members 106, 116 together at least partially define the end surfaces of the device 100. For example, the bottom surface of the second end member 116 at least partially defines the bottom surface of device 100. The edges of the outer shell 102 may also form portions of the end surfaces. In the present example, cover 108 also forms part of the top surface of device 100.

The end of the device closest to the opening 104 is also called the proximal edge (or mouthpiece edge) of the device 100 because it is closest to the user's mouth during operation. During operation, the user inserts the smoking element 110 into the opening 104, activates the user control element 112 to turn on the heating of the aerosol-generating material, and takes a puff from the aerosol generated in the device. As a result, the aerosol flows through the device 100 along the path of the aerosol to the proximal edge of the device 100.

The other edge of the device, located further from the opening 104, is also called the far edge of the device 100 because during operation, this edge is furthest from the user's mouth. The user is drawn into the aerosol generated in the device, and the aerosol flows in a direction away from the distal edge of the device 100.

In addition, the device 100 includes a power source 118. The power source 118 may be, for example, a battery, which may be a non-rechargeable battery or a rechargeable battery. Examples of suitable batteries are, for example, a lithium battery (such as a lithium ion battery), a nickel battery (such as a nickel-cadmium battery), and an alkaline battery. The battery is electrically coupled to the heating unit to supply electrical power when needed and under the control of a controller (not shown) to heat the aerosol-forming material. In this example, the battery is attached to a central support 120, which holds the battery 118 in place.

The device further includes at least one electronic module 122. The electronic module 122 may be, for example, a printed circuit board (PCB). The PCB 122 may support at least one controller, such as a processor, and a memory device. The PCB 122 may also include one or more printed conductors that serve to electrically connect various electronic components of the device 100. For example, battery terminals may be electrically connected to the PCB 122 to provide power to the device 100. The connector 114 may also be electrically connected to the battery via printed circuits. conductors.

In the exemplary embodiment of device 100, the heating block is an induction heating block and includes various components for heating the aerosol-forming material of the smoking element 110 by induction heating. Induction heating is the process of heating an electrically conductive object (such as a pantograph) through electromagnetic induction. The induction heating assembly may include an inductive element, such as one or more induction windings, and a device for causing a varying electrical current, such as alternating current, to pass through the inductive element. A changing electric current passing through an inductive element creates a changing magnetic field in it. The changing magnetic field penetrates the pantograph, suitably positioned relative to the inductive element, generating eddy currents inside the pantograph. The pantograph has electrical resistance to eddy currents, and thus the flow of eddy currents overcoming the above-mentioned electrical resistance causes the pantograph to heat up due to Joule heating. In cases where the pantograph contains ferromagnetic material such as iron, nickel or cobalt, heat may also be generated due to losses from magnetic hysteresis in the pantograph, i.e. by changing the orientation of magnetic dipoles in a magnetic material as a result of their alignment with the changing magnetic field. With induction heating, compared to heating by conduction, for example, heat is generated inside the pantograph, resulting in rapid heating. In addition, in this case, no physical contact is required between the induction heater and the current collector, which expands the design and application possibilities.

The induction heating assembly of the device 100 in the present embodiment includes a current collector 132 (hereinafter referred to as a "pantograph"), a first induction winding 124, and a second induction winding 126. The first and second induction windings 124, 126 are made of electrically conductive material. In the present example, the first and second induction windings 124, 126 are made of high frequency litz wire/cable wound in a helical shape to create helical induction windings 124, 126. The litz wire comprises a plurality of separately insulated wires twisted together to form a single wire. Litz wires are used to reduce skin effect losses in the conductor. In the present embodiment of the device 100, the first and second induction windings 124, 126 are made of copper Litz wire with a rectangular cross-section. In other embodiments, the Litz wire may have other cross-sectional shapes, such as a circular shape.

The first induction winding 124 is configured to create a first varying magnetic field to heat the first section of the pantograph 132, and the second induction winding 126 is configured to create a second varying magnetic field to heat the second section of the pantograph 132. In the example under consideration, the first induction winding 124 is located adjacent to the second induction winding 126 in the direction along the longitudinal axis 134 of the device 100 (ie, the first and second induction windings 124, 126 do not overlap). The current collector device 132 may include one current collector or two or more current collectors. The ends 130 of the first and second induction windings 124, 126 can be connected to the PP 122.

It should be appreciated that in some embodiments, the first and second induction windings 124, 126 may differ from each other in at least one of their characteristics. For example, the first induction winding 124 may have at least one characteristic that is different from the second induction winding 126. More specifically, in one possible embodiment, the first induction winding 124 may have an inductance value that is different from the inductance of the second induction winding 126. As shown in fig. 4, the first and second induction windings 124, 126 are of different lengths such that the first induction winding 124 is wound around a smaller portion of the current collector 132 than the second induction winding 126. Thus, the first induction winding 124 may contain a different number of turns than the second induction winding. induction winding 126 (provided that the distance between the individual turns is almost the same). In yet another example, the first induction winding 124 may be made of a different material than the second induction winding 126. In some embodiments, the first and second induction windings 124, 126 may be substantially the same.

In the present example, the first induction winding 124 and the second induction winding 126 are wound in opposite directions. This can be useful when the induction windings are activated at different times. For example, first the first induction winding 124 may be energized to heat the first portion of the smoking element 110, and later the second induction winding 126 may be energized to heat the second portion/section of the smoking element 110. Winding the turns in opposite directions helps reduce the current induced in the idle winding when when used with a specific type of control circuit. As shown in FIG. 4, the first induction winding 124 is a right-hand wound helix, and the second induction winding 126 is a left-hand wound helix. However, in other embodiments, the induction windings 124,126 may be wound in one direction, or the first induction winding 124 may be a left-hand wound helix and the second induction winding 126 may be a right-hand wound helix.

The current collector 132 in this embodiment is a hollow member, and thus provides a receptacle for inserting the aerosol-forming material. For example, a smoking element 110 may be inserted into the pantograph 132. In the exemplary embodiment, the pantograph 120 is tubular in shape with a circular cross-section.

The current collector 132 may be made of one or more materials. Preferably, the current collector 132 is made of carbon steel coated with nickel or cobalt.

In some embodiments, the susceptor may contain at least two materials that may be heated at different frequencies to selectively aerosolize the at least two materials. For example, the first section of pantograph 132, heated by the first induction winding 124, may contain a first material, and the second section of pantograph 132, heated by the second induction coil 126, may contain a second material different from the first. In another possible embodiment, the first section may contain first and second materials, and the first and second materials may be heated differently depending on the operation of the first induction winding 124. The first and second materials may be adjacent to each other in the axial direction of the pantograph 132 or may form different layers within the pantograph 132. Likewise, the second section may contain third and fourth materials, which may be heated differently depending on the operation of the second induction winding 126. The third and fourth materials may be located adjacent to each other in the direction along the pantograph axis. 132 or may form different layers within the pantograph 132. The third material, for example, may be the same as the first material, and the fourth material may be the same as the second material. Alternatively, all materials may be different. The current collector can be made, for example, of carbon steel or aluminum.

Shown in FIG. 4, device 100 further includes an insulating element 128, which may be generally tubular in shape and at least partially surround the current collector 132. The insulating element 128 may be made of any insulating material, such as plastic. In this particular embodiment, the insulating element is made of polyetheretherketone (PEEK). The insulating element 128 may help isolate various components of the device 100 from heat generated in the current collector 132.

The insulating element 128 may also fully or partially support the first and second induction windings 124, 126. For example, as shown in FIG. 4, the first and second induction windings 124, 126 are located around the insulating element 128 and contact the radially outer surface of the insulating element 128. In some embodiments, the insulating element 128 does not abut the first and second inductive windings 124, 126. For example, there may be a small the gap between the outer surface of the insulating element 128 and the inner surface of the first and second induction windings 124, 126.

In a specific embodiment, the pantograph 132, the insulating element 128, and the first and second induction windings 124, 126 are located coaxially with respect to the central longitudinal axis of the pantograph 132.

In fig. 5 is a partial cross-sectional side view of the device 100. In this example, the outer shell 102 is present. Here, the rectangular cross-sectional shape of the first and second induction windings 124, 126 is more clearly visible.

The device 100 further includes a support 136 connected to one end of the pantograph 132 and serving to secure the pantograph 132 in place. The support 136 is connected to the second end member 116.

The device may also further include a second circuit board 138 coupled to the control element 112.

The device 100 further includes a second cover/cap 140 and a spring 142 located adjacent the distal edge of the device 100. The spring 142 allows the second cover 140 to be opened to provide access to the pantograph 132. The user can open the second cover 140 to clean the pantograph 132 and/or the support 136.

The device 100 further includes an expansion chamber 144 that extends from a proximal edge of the pantograph 132 to an opening 104 of the device. Located at least partially within the expansion chamber 144 is a retaining clip 146 that abuts and retains the smoking element 110 when the smoking element 110 is inserted into the device 100. The expansion chamber 144 is connected to the end member 106.

In fig. 6 is an illustration of the device 100 shown in FIG. 5, disassembled, without outer shell 102.

In fig. 7A is a cross-sectional view of a portion of device 100 shown in FIG. 5. In FIG. 7B shows the area shown in FIG. 7A, enlarged. In fig. 7A and 7B show a smoking element 110 inserted into the pantograph 132, the size of which is selected such that the outer surface of the smoking element 110 fits tightly against the inner surface of the pantograph 132. This provides the most efficient heating. The smoking element 110 in the present embodiment is an aerosol-forming material 110a. This aerosol-forming material 110a is inserted within the pantograph 132. The smoking element 110 may also include other components such as a filter, wrapping materials, and/or a cooling structure.

As can be seen from Fig. 7B, the outer surface of the pantograph 132 is separated from the inner surface of the induction windings 124, 126 by a distance 150 measured in a direction perpendicular to the longitudinal axis 158 of the pantograph 132. In a particular embodiment, the distance 150 may be approximately 3 mm to 4 mm, approximately 3 to 3. 5 mm, or about 3.25 mm.

In fig. 7B also shows that the outer surface of the insulating element 128 is separated from the inner surface of the induction windings 124, 126 by a distance 152 measured in a direction perpendicular to the longitudinal axis 158 of the pantograph 132. In a particular embodiment, the distance 152 is about 0.05 mm. In another possible embodiment, the distance 152 is substantially equal to 0 mm, such that the induction windings 124, 126 touch and fit tightly against the insulating element 128.

In an exemplary embodiment, the thickness of the wall 154 of the pantograph 132 is from about 0.025 mm to 1 mm, or about 0.05 mm.

In an exemplary embodiment, the length of pantograph 132 is about 40 mm to 60 mm, about 40 mm to 45 mm, or about 44.5 mm.

In an exemplary embodiment, the thickness of the wall 156 of the insulating element 128 is from about 0.25 mm to 2 mm, from 0.25 mm to 1 mm, or about 0.5 mm.

In use, the smoking elements 1, 1' according to the present invention can be inserted into a non-combustion aerosol generating device, such as the device 100 described with reference to FIGS. 3 - 7. At least a portion of the mouthpiece 2, 2' of the smoking element 1, 1' protrudes from the non-burning aerosol generating device 100 and can be placed in the mouth of the user. The aerosol is created by heating the aerosol-forming material 3 using the device 100. The aerosol generated from the aerosol-forming material 3 passes through the mouthpiece 2 into the mouth of the user.

The smoking elements 1, 1' of the present invention provide a number of specific advantages, for example, when used with a non-combustion aerosol generating device such as the device 100 described with reference to FIGS. 3 - 7. In particular, it has been found that the first tubular element 4, made of a fiber tow, significantly influences the temperature of the outer surface of the smoking element 1, 1'. For example, it has been found that if the hollow tubular member 4 formed from the fiber tow is wrapped in an outer shell such as tipping paper 5, the maximum temperature of the outer surface of the outer shell at a location in the longitudinal direction corresponding to the location of the hollow tubular member 4 during use reaches a value less than 42°C, in some cases less than 40°C, and if necessary, less than 38°C or less than 36°C.

Table 2.0 below shows the temperature values of the outer surface of the smoking element 1 shown in FIG. 1, when heated by the device 100 described with reference to FIG. 3-7. The first, second and third temperature sensors were installed, respectively, at the first, second and third positions in the direction along the length of the mouthpiece 2 of the smoking element 1. The first position (position 1 in table 2.0) was located at a distance of 4 mm from the proximal end 2b of the mouthpiece 2, the second position (position 2 in table 2.0) was 8 mm from the proximal end 2b of the mouthpiece 2, and the third position (position 3 in table 2.0) was 12 mm from the proximal end 2b of the mouthpiece 2.

Thus, the first position was on the outer surface of the portion of the mouthpiece 2 in which the first tubular element 4 is located, and the second and third positions were on the outer surface of the portion of the mouthpiece 2 in which the material element 6 is located.

To compare the test results of the fiber tow tubular element 4, tests were also carried out on a control smoking element made of a spiral wound paper tube having the same structure as the second hollow tubular element 8 according to the present invention, but whose length was not 25 mm, but 6 mm.

Testing was performed on the first five puffs through the smoking element because by the time the fifth puff is taken the temperature will typically peak and begin to fall so that the approximate maximum temperature can be measured. Each sample was tested five times and the temperatures shown are the average of these five tests. The well-known Health Canada Intense regimen (55 mL puff volume taken for 2 seconds every 30 seconds) was applied using standard testing equipment.

As can be seen from the table below, it has surprisingly been found that the use of a fiber tow tubular member 4 reduces the temperature of the outer surface of the mouthpiece 2 compared to a control smoking member at every puff and test position on the mouthpiece 2. The fiber tow tubular member 4 tourniquet was particularly effective in reducing the temperature at the first probe position, where the user's lips would be located when using smoking element 1. Specifically, the temperature of the outer surface of the mouthpiece 2 at the first probe position was reduced by more than 7°C in the first three puffs or more than 5°C on the fourth and fifth puffs.

Table 2.0 Probe position Mouthpiece end of consumable element Puff 1 Puff 2 Puff 3 Puff 4 Puff 5 1 Paper tube (control) 38.98 42.50 43.26 42.38 40.52 Tubular element 4 made of fiber tow 31.79 35.00 35.72 35.46 34.64 2 Paper tube (control) 41.60 45.34 47.05 46.36 44.58 Tubular element 4 made of fiber tow 40.32 43.48 43.73 43.21 41.73 3 Paper tube (control) 46.71 48.93 50.51 53.14 54.63 Tubular element 4 made of fiber tow 45.43 47.73 47.64 47.72 47.36

In fig. 8 is a flow diagram of a method for manufacturing a smoking element for use in a non-combustion aerosol generating system. In step S101, the first and second parts of the aerosol-forming material, each of which contains the aerosol-forming material, are located adjacent to the respective first and second ends in the longitudinal direction of the die rod, which is a hollow tubular rod made of a fiber tow, located between the first and second ends. In the present embodiment, the hollow tubular rod is a first hollow tubular element 4 of double length located between the corresponding first and second material elements 6. At the outer end of each of the material elements 6 there is a corresponding second tubular element 8, and adjacent to the outer ends of these second tubular elements elements 8 contain the first and second parts of the aerosol-forming material. The mouthpiece rod is wrapped with a second ficella according to the present invention.

In step S102, the first and second parts of the aerosol-forming material are connected to the mouthpiece rod. In the present embodiment, this is accomplished by wrapping the tipping paper 5 according to the present invention around the tip shaft and at least a certain portion of each of the first and second parts of the aerosol-forming material 3. In the present embodiment, the tipping paper 5 extends approximately 5 mm in the longitudinal direction onto the outer the surface of each part of the aerosol-forming material 3.

In step S103, the hollow tubular rod is cut to form first and second smoking elements, each of which includes a mouthpiece containing a hollow tubular rod portion located at a proximal end of the mouthpiece. In the present embodiment, the first hollow tubular element 4 of the double length of the mouthpiece rod is cut in the middle along its length, so that essentially identical smoking elements are formed.

The various embodiments discussed herein have been shown only for the purpose of facilitating understanding and illustrating the distinctive features of the claimed invention. These embodiments are provided as illustrative examples only and are not exhaustive or exclusive. It should be understood that the advantages, embodiments, examples, functions, features, structures and/or other aspects of the present invention described herein do not in any way limit the scope of the present invention, which is defined by the claims below or limitations on the equivalents of these claims, and that other embodiments may be used and modifications may be made without departing from the scope of the claimed invention. Various embodiments of the present invention may suitably contain, consist of, or consist entirely of appropriate combinations of disclosed elements, components, features, parts, operations, means, etc., different from those disclosed herein. In addition, this disclosure may include other inventions not presently claimed but which may be claimed in the future.

Claims (40)

1. A smoking element for use in a non-combustion aerosol generating system, comprising an aerosol-forming material, a mouthpiece behind the aerosol-generating material, and a wrapper containing sensor material for transfer to a user when the smoking element is used, the wrapper comprising an inner surface and an outer surface, wherein the sensor material is present at least least on part of the inner surface and/or outer surface of the wrapper. 2. The smoking element according to claim 1, characterized in that the wrapper is configured to enclose at least a portion of the aerosol-generating material and at least a portion of the smoking element mouthpiece for use with an aerosol-generating device. 3. The smoking element according to claim 1, characterized in that the wrapper is located around the aerosol-forming material. 4. The smoking element according to claim 1, characterized in that the inner surface and/or outer surface of the wrapper contains sensor material in an amount of 0.02 to 0.2 g/m ² . 5. Smoking element according to any one of paragraphs. 1-4, characterized in that less than 90%, 80%, 70%, 60%, 50%, 40%, 30%, 20% or 10% of the area of the inner surface and/or outer surface contains sensory material. 6. Smoking element according to any one of paragraphs. 1-5, characterized in that the smoking element for use with an aerosol-generating device is designed in such a way that when the aerosol-forming material is heated to a temperature above 200°C, the temperature of the part of the wrapper located next to the aerosol-generating material increases by at least 60% by at least 70%, at least 80%, or at least 90% higher than the temperature of the portion of the wrapper adjacent to the proximal end of the mouthpiece. 7. The smoking element according to claim 6, characterized in that the temperature of the part of the wrapper located next to the proximal end of the mouthpiece is from 30 to 45°C. 8. The smoking element according to claim 6 or 7, characterized in that the temperature of the part of the wrapper located next to the aerosol-forming material reaches 300°C. 9. Smoking element according to any one of paragraphs. 1-8, characterized in that the wrapper is impregnated with sensory material and/or the sensory material in the wrapper is in encapsulated form. 10. Smoking element according to any one of paragraphs. 1-9, characterized in that the sensor material contains a flavoring agent. 11. Smoking element according to any one of paragraphs. 1-10, characterized in that the portion of the wrapper located adjacent to the aerosol-forming material contains sensory material, and the portion of the wrapper located adjacent to the proximal end of the mouthpiece does not contain sensory material. 12. Smoking element according to any one of paragraphs. 1-10, characterized in that the portion of the wrapper located adjacent to the proximal end of the mouthpiece contains sensor material, and the portion of the wrapper located adjacent to the aerosol-forming material does not contain sensor material. 13. Smoking element according to any one of paragraphs. 1-12, characterized in that the permeability of the wrapper is less than 100 CORESTA units, less than 90 CORESTA units, less than 80 CORESTA units, less than 70 CORESTA units or less than 60 CORESTA units. 14. Smoking element according to any one of paragraphs. 1-13, characterized in that the aerosol-forming material contains a tobacco component. 15. The smoking element according to claim 14, characterized in that the tobacco component contains leaf tobacco in an amount of from 10 to 30 wt.% tobacco component. 16. The smoking element according to claim 14 or 15, characterized in that the tobacco component contains reconstituted tobacco material in an amount of from 70 to 90 wt.% tobacco component. 17. Smoking element according to any one of paragraphs. 1-16, characterized in that the smoking element for use with an aerosol-generating device comprises a material element located between the aerosol-generating material and the proximal end of the mouthpiece. 18. The smoking element according to claim 17, characterized in that the material element contains an aerosol-modifying additive contained in it. 19. The smoking element according to claim 18, characterized in that the aerosol-modifying additive contains a flavoring agent. 20. The smoking element according to claim 18 or 19, characterized in that the aerosol-modifying additive is enclosed in a capsule. 21. The smoking element according to claim 20, characterized in that the material element is made in the form of a cylinder with a longitudinal axis, and the capsule is built into the material element in such a way that the capsule is surrounded on all sides by the material of the material element, and the capsule has a shell inside which contains a liquid aerosol-modifying additive, and the largest cross-sectional area of the capsule, measured in a plane perpendicular to the longitudinal axis, is less than 28% of the cross-sectional area of the material element, measured in a plane perpendicular to the longitudinal axis. 22. The smoking element according to claim 20 or 21, characterized in that the largest cross-sectional area of the capsule, measured in a plane perpendicular to the longitudinal axis, is less than 28% of the cross-sectional area of the material element. 23. Smoking element according to any one of paragraphs. 1-22, characterized in that the mouthpiece contains a hollow tube. 24. The smoking element according to claim 23, characterized in that the hollow tube is made of a fiber bundle at the proximal end of the mouthpiece. 25. Smoking element according to any one of paragraphs. 1-24, characterized in that the pressure drop across the mouthpiece is less than 32 mm H ₂ O. 26. Smoking element according to any one of paragraphs. 1-25, characterized in that the mouthpiece is connected to an aerosol-forming material, and also in that the mouthpiece contains a cavity, the internal volume of which is more than 450 mm ³ . 27. Smoking element according to any one of paragraphs. 1-26, characterized in that the mass of the aerosol-forming material is from 250 to 380 mg, from 300 to 360 mg, from 320 to 350 mg or from 330 to 350 mg. 28. Smoking element according to any one of paragraphs. 1-27, characterized in that the sensor material contains an aerosol-modifying additive. 29. The smoking element according to claim 28, characterized in that the aerosol-modifying additive is configured to become volatile when heated. 30. Smoking element according to any one of paragraphs. 1-29, characterized in that the smoking element for use with an aerosol generating device contains reconstituted tobacco material whose density is less than 700 mg/cm ³ . 31. Smoking element according to any one of paragraphs. 1-30, characterized in that the length of the outer circumference of the smoking element is at least 19 mm. 32. Smoking element according to any one of paragraphs. 1-31, characterized in that the length of the outer circumference of the smoking element is from 19 to 23 mm. 33. Smoking element according to any one of paragraphs. 1-32, characterized in that the wrapper contains aluminum foil and, if necessary, also paper base material. 34. A method for manufacturing a smoking element according to any one of paragraphs. 1-32, including covering at least a portion of the inner surface and the outer surface of the wrapper with a sensor material and wrapping the wrapper around a smoking element mouthpiece. 35. A smoking element for use in a non-combustion aerosol generating system, manufactured in accordance with the method of claim 34. 36. An aerosol-generating system containing a smoking element according to any one of paragraphs. 1-32 or 35 and a device for heating an aerosol-generating material, wherein the device included therein is configured to insert therein at least a portion of a smoking element to heat a portion of the smoking element when at least a portion of the smoking element is placed in the device and generate an aerosol from an aerosol-forming material. 37. The system according to claim 36, characterized in that the device included in it is configured to heat the aerosol-forming material to at least 200°C so that the temperature of the part of the wrapper located next to the aerosol-forming material is at least 60% higher at least 70%, at least 80%, or at least 90% higher than the temperature of the portion of the wrapper adjacent the proximal end of the mouthpiece. 38. The system according to claim 36 or 37, characterized in that the device included in it contains a winding configured to heat a part of the smoking element for use with an aerosol-generating device containing an aerosol-forming material. 39. The system according to any one of paragraphs. 36-38, characterized in that the maximum temperature of the outer surface of the mouthpiece in a place in the longitudinal direction corresponding to the location of the capsule, during use, reaches a value of less than 55°C or less than 50°C. 40. The system according to any one of paragraphs. 36-39, characterized in that the maximum temperature of the outer surface of the mouthpiece at a location in the longitudinal direction corresponding to the location of the hollow tubular element during use reaches a value of less than 42°C, less than 40°C or less than 38°C.

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