RU2600296C2 - Segmented smoking article with substrate cavity - Google Patents

Abstract

FIELD: tobacco industry.

SUBSTANCE: invention relates to a cigarette, which comprises a tobacco core, an aerosol generating system, including fuel segment located at end for ignition and comprising a heat source, and insulating layer of fire-resistant material, located around heat source; and aerosol generation segment comprising a substrate of tobacco granules and aerosol-formin material, wherein substrate is located inside cavity for substrate, bounded by fuel segment and tobacco rod, so that substrate of tobacco granules is in contact with fuel segment on one side of cavity for substrate and is in contact with tobacco rod on other side of cavity for substrate; wrapping material, bounding at least part of fuel segment, aerosol-generating segment and at least part of tobacco core; and wherein wrapping material comprises a strip of foil encircling in circumferential direction at least longitudinal section of cavity for substrate extending along said section in lengthwise direction and partially covering at least longitudinal portion of fuel segment.

EFFECT: technical result is providing smoking without delivery of considerable amounts of products of incomplete combustion and pyrolysis.

13 cl, 12 dwg

Description

CROSS RELATIONS FOR RELATED PATENT APPLICATIONS

[0001] This international application claims priority based on application for US patent No. 13/236962, filed September 20, 2011, which is a partial continuation of applications for US patent No. 12/775130, filed May 6, 2010; 12/775278, filed May 6, 2010; and 12/859494, filed August 19, 2010, each of which is fully incorporated into this application by reference.

FIELD OF TECHNOLOGY

[0002] The present invention relates to products made or isolated from tobacco, or which otherwise include tobacco and are intended for human consumption. In particular, this application relates to the components and structure of segmented type smoking articles.

BACKGROUND

[0003] Popular smoking articles, such as cigarettes, have a substantially cylindrical structure in the form of a rod and comprise a charge, curl or column of smoking material such as cut tobacco (for example, in the form of crushed tobacco) surrounded by a paper wrapper, thereby forming , the so-called "smoking rod", "tobacco rod" or "cigarette rod". Typically, a cigarette comprises a cylindrical filter element connected end to a tobacco rod. The filter element preferably contains a plasticized cellulose acetate fiber limited to a paper material known as “ficella”. The filter element is preferably attached to one end of the tobacco rod using a bounding wrapping material known as “wrapping paper”. In addition, it became desirable to perforate the rim material and ficella to dilute the main stream of inhaled smoke with ambient air. Cigarettes and their various components are described in Tobacco Production, Chemistry and Technology, Davis et al. (Eds.) (1999) and US Pat. No. 7,503,330 to Borschke et al., Incorporated herein by reference. A smoker uses a cigarette by lighting one end of it and burning a tobacco rod. Then the main stream of smoke enters the smoker's mouth by pulling on the opposite end (for example, the filter end) of the cigarette.

[0004] Certain types of cigarettes that use carbon fuel cells are marketed under the trade names "R. Premier" and "Eclipse". Reynolds Tobacco Company. See, for example, the types of cigarettes described in Chemical and Biological Studies on New Cigarette Prototypes that Heat Instead of Bum Tobacco, R.J. Reynolds Tobacco Company Monograph (1988) and Inhalation Toxicology, 12: 5, p. 1-58 (2000). More recently, a cigarette from Japan Tobacco Inc. appeared on the Japanese market. under the trademark "Steam Hot One". In addition, it has been proposed that carbonaceous fuel cells of segmented types of cigarettes may include ultrafine particles of metals and metal oxides. See, for example, US Patent Application Publication No. 2005/0274390 to Banerjee et al., Which is incorporated herein by reference in its entirety.

[0005] US Patent Nos. 5,285,798 to Banerjee et al. And 7,290,549 to Banerjee et al. And US Patent Application Publication No. 2008/0092912 to Robinson et al, which are incorporated herein by reference in their entirety, also other types of smoking articles are described. for example, products in which, when exposed to tobacco or processed tobacco by heat released from chemical or electrical heat sources, flavored vapors are generated. One such type of smoking article that used electrical energy to generate heat was marketed by Philip Morris Inc. under the trade name "Accord".

[0006] Smoking articles in which heat sources other than cinned tobacco are used to produce tobacco flavored vapors or tobacco flavored visible aerosols have not been widely commercialized. However, it would be highly desirable to obtain smoking articles demonstrating the ability to provide the smoker with many of the benefits and advantages of regular cigarette smoking, but without delivering significant quantities of products of incomplete combustion and pyrolysis.

SUMMARY OF THE INVENTION

[0007] Embodiments of the present invention relate to smoking articles and, in particular, to rod-shaped smoking articles, such as cigarettes. The smoking article includes an end for ignition (i.e., an inlet end) and an end placed in the mouth (i.e., outlet end). In addition, the smoking article includes an aerosol generation system comprising (i) a fuel segment and (ii) an aerosol generation section or segment located downstream of the fuel segment. The aerosol generating segment may include a substrate containing granules or pellets of marumerized or non-marumerized tobacco located within the cavity for the substrate. The cavity for the substrate may be limited by a strip of foil laminated to the wrapping material.

[0008] Additional features and advantages of the present invention are described in more detail in the following description.

BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Embodiments of the present invention may be better understood with reference to the accompanying drawings, which are illustrative only and not limiting.

[0010] FIG. 1 and 2 show longitudinal cross sections of typical smoking articles.

[0011] FIG. 3 shows a typical fuel cell.

[0012] FIG. 4-6 show a longitudinal cross section of a typical smoking article containing a monolithic substrate.

[0013] FIG. 7 shows a longitudinal cross section of a typical smoking article containing a tobacco granule substrate.

[0014] FIG. 8 shows a double-sided rod that can be used to produce the smoking article shown in FIG. 7.

[0015] FIG. 9 shows a wrapping material that can be used to produce the double-sided bar shown in FIG. 8.

[0016] FIG. 10 shows one example of a construction of a smoking article.

[0017] FIG. 11 shows a typical smoking article containing a tobacco granule substrate.

[0018] FIG. 12 shows yet another example of a construction of a smoking article.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS OF THE PRESENT INVENTION

[0019] Aspects and implementations of the present invention relating to various smoking articles, the arrangement of their various components, and the manner in which said smoking articles connect the wrapper components are illustrated with reference to FIG. 1 and 2. In all the drawings, the same reference numerals correspond to the same components. For different drawings, the thicknesses of various wrapping materials and the outer wrappers of various smoking articles and components of smoking articles are shown on an enlarged scale. Most preferably, the wrapping materials and wrapper components are tightly wound around smoking articles and components of smoking articles to provide a snug fit and aesthetically pleasing appearance. A typical design of a smoking article may include parts such as fibrous filter elements, foamed ceramic monoliths made in the form of insulating materials, or fuel cells and other details described in US Patent Application Publication No. 2011/0041861 by Sebastian et al., Which is in its entirety. incorporated into this application by reference.

[0020] FIG. 1 shows a typical cigarette-shaped smoking article 10. The smoking article 10 is rod-shaped and includes an end for ignition 14 and an end 18 placed in the mouth.

[0021] At the ignition end 14 is a longitudinally extending, generally cylindrical smoking end segment 22 for ignition, containing smoking material 26. Typical smoking material 26 may be plant material (for example, tobacco-shaped tobacco material). A typical cylindrical smoking end segment 22 for ignition includes loading or a roll of smoking material 26 (for example, crushed tobacco) wrapped in paper wrapping material 30 or located inside said material 30 and limited by it. As such, a longitudinally extending outer surface of such a cylindrical smoking end portion 22 for ignition is formed by a wrapping material 30.

Both ends of the segment 22 are preferably open, allowing exposure to the smoking material 26. The smoking end segment for the ignition 22 can be positioned so that the smoking material 26 and the wrapping material 30 each extend along its entire length.

[0022] After the smoking end portion for ignition 22, a longitudinally extending generally cylindrical heat generating segment 35 is located. The heat generating segment 35 includes a heat source 40 limited by an insulating material 42, which may be coaxially surrounded by a wrapping material 45. The heat source 40 is preferably made with the ability to activate during combustion of the smoking material 26. The ignition and burning of the smoking material preferably gives the user the desired feeling (in relation to least aroma and time spent on zakurivanie smoking article 10). Most preferably, if the amount of heat generated by the consumption of the smoking material is sufficient to ignite or otherwise activate the heat source 40.

[0023] The heat source 40 may include a combustible fuel cell, which is generally cylindrical in shape and may contain combustible carbonaceous material. Carbon materials are generally high in carbon. Preferred carbon materials are predominantly carbon, with the carbon content typically being more than about 60 percent, generally more than about 70 percent, often more than about 80 percent and often more than about 90 percent, based on dry weight. Fuel cells may contain non-combustible carbon material components (e.g. tobacco components, as powdered types of tobacco or tobacco extracts; flavoring agents; salts such as sodium chloride, potassium chloride and sodium carbonate; heat-resistant graphite fiber; iron oxide powder ; glass filaments; powdered calcium carbonate; alumina granules; ammonia sources such as ammonia salts; and / or binders such as guar gum, ammonium alginate and sodium alginate). A typical fuel cell is approximately 12 mm long and has a total outer diameter of approximately 4.2 mm. A typical fuel cell can be extruded or compounded using crushed or powdered carbonaceous material, wherein the density of said cell is more than about 0.5 g / cm ³ , often more than about 0.7 g / cm ³ and often more than about 1 g / cm ³ , calculated on the dry weight. See, for example, the types of fuel cell components, compositions, and designs described in US Pat. Nos. 5,551,451 to Riggs et al. And 7836897 to Borschke et al, which are incorporated herein by reference in their entirety. Specific embodiments of fuel cells are described below with reference to FIG. 3.

[0024] Another embodiment of the fuel cell 40 may include a foamed carbon monolith obtained in the foaming process. According to another embodiment of the present invention, the fuel cell 40 can be extruded together with the layer of insulating material 42, thereby reducing production time and technological costs. Still other embodiments of fuel cells may include elements of the types described in US Pat. No. 4,922,901 to Brooks et al. Or in U.S. Patent Application Publication No. 2009/0044818 to Takeuchi et al., Each of which is incorporated herein by reference.

[0025] A typical layer of insulating material 42 may contain glass filaments or fibers. The insulating material 42 can act as a sheath that helps to reliably hold the heat source 40 in place within the smoking article 10. The insulating material 42 can be obtained as a multilayer component comprising an inner layer or mat 47 of non-woven glass fibers, an intermediate layer of paper 48 of recovered tobacco and the outer layer of non-woven glass threads 49. These layers can be oriented concentrically or each layer can wrap and / or limit the heat source.

[0026] According to one embodiment of the present invention, the inner layer 47 of insulating material may include various glass or non-glass filaments or fibers that are woven, knitted, or both woven and knitted (such as, for example, the so-called 3-D woven / knitted hybrid mats). In the case of a woven material, the inner layer 47 can be made in the form of a woven mat or tube. A woven or knitted mat or tube can provide excellent airflow control in terms of uniform distribution throughout the insulating layer (including when any thermal changes can occur with the layer). Those skilled in the art will understand that woven, knitted, or hybrid material can provide more uniform and uniform air spaces / gaps between threads or fibers compared to non-woven material, which most likely contains unevenly closed and open spaces that can provide relatively uneven and / or reduced air flow. Various other embodiments of the insulating material may be molded, extruded, foamed, or otherwise prepared. Specific embodiments of the insulating structures may include those described in US Patent Application No. 12/859494 Stone et al, filed August 19, 2010, which is hereby incorporated by reference in its entirety.

[0027] Both ends of the fuel segment 35 are preferably open, thereby exposing the heat source 40 and the insulating material 42 to adjacent segments. The heat source 40 and the surrounding insulating material 42 can be positioned so that the length of both materials is the same in length (i.e., the ends of the insulating material 42 are flush with the corresponding ends of the heat source 40 and, in particular, at the output end fuel segment). It is possible, although not necessarily preferable, that the insulating material 42 may slightly extend outside (for example, a distance of from about 0.5 mm to about 2 mm) of one or both ends of the heat source 40. In addition, smoke generated by burning of the smoking end segment for ignition 22 when using a smoking article 10, can easily pass through the fuel segment 35 during puff, which makes the smoker at the end 18, placed in the mouth.

[0028] The fuel segment 35 is preferably located near the output end of the smoking segment 22, so that these segments are closely adjacent to the axial direction, preferably close to each other, but without a barrier (other than airspace) between them. The close proximity of the heat-generating segment 35 and the smoking end segment for ignition 22 provides appropriate heat transfer (for example, such that the action of the burning smoking material inside the smoking end segment for ignition 22 leads to ignition of the heat source in the heat generation segment 35). The shapes and dimensions of the outer cross section of the smoking segment and the fuel segment 22, 35, when viewed in the transverse direction relative to the longitudinal axis of the smoking article, can be substantially the same (for example, both appear to have a cylindrical shape with substantially equal diameters).

[0029] The shape and dimensions of the cross-section of the fuel segment 35 before burning may vary. The cross-sectional area of the heat source 40 is preferably from about 10 percent to about 35 percent, often from about 15 percent to about 25 percent, relative to the total cross-sectional area of said segment 35; while the cross-sectional area of the outer or bounding portion (containing insulation material 42 and corresponding outer wrapping materials) is from about 65 percent to about 90 percent, often from about 75 percent to about 85 percent, relative to the total cross-sectional area of said segment 35. For example, for a cylindrical smoking article with a circumference of about 24 mm to about 26 mm, a typical heat source 40 has a generally circular cross-section with an outer diameter meter of about 2.5 mm to about 5 mm, often about 3 mm to about 4.5 mm.

[0030] A longitudinally extending cylindrical aerosol generation segment 51 is located after the heat generating segment 35. The aerosol generating segment 51 includes substrate material 55, which in turn acts as a carrier for an aerosol forming agent or material (not shown). For example, the aerosol generation segment 51 may include reconstituted tobacco material containing processing aids, flavoring agents, and glycerin.

[0031] The aforementioned components of the aerosol generation segment 51 may be located within and limited to the wrapping material 58. The wrapping material 58 may be configured to facilitate heat transfer from the end for ignition 14 of the smoking article 10 (for example, from the heat generating segment 35) to the components of the aerosol generating segment 51. That is, the aerosol generating segment 51 and the heat generating segment 35 can be positioned with the possibility of heat exchange with each other. Heat transfer occurs so that a sufficient amount of heat from the heat source 40 enters the aerosol generation section to vaporize the aerosol forming material and generate an aerosol. According to some variants of implementation of the present invention, heat transfer is carried out by placing these segments in close proximity to each other. Heat transfer can also be accomplished by placing heat-conducting material from a portion located near the heat source 40 onto a portion occupied by or around the aerosol generation segment 51. Specific embodiments of the substrates may include substrates described below or in US Patent Application No. 12/859494 Stone et al, filed August 19, 2010, which are incorporated herein by reference in their entirety.

[0032] A typical wrapping material 58 for the substrate material 55 may have heat-conducting properties that allow heat to be transferred from the heat generating segment 35 to the aerosol generation segment 51 and to allow evaporation of the aerosol forming components contained in said segment 51. The length of the substrate material 55 may be from from about 10 mm to about 22 mm, while the length of some embodiments is from about 11 mm to about 12 mm, while other embodiments reach about 21 mm.

[0033] The substrate material 55 can be obtained from a mixture of fragrant and aromatic types of tobacco in a crumbled form. Such types of tobacco, in turn, can be treated with an aerosol forming material and / or at least one flavoring agent. The substrate material can be obtained from processed tobacco (for example, reconstituted tobacco obtained by casting a sheet or using processes used in the manufacture of paper) in crumbled form. Some designs obtained by casting a sheet may include from about 270 to about 300 mg of tobacco per 10 mm of length in the longitudinal direction. Such tobacco, in turn, can be processed or processed to include using an aerosol forming material and / or at least one flavoring agent, as well as a combustion inhibitor (e.g. diammonium phosphate or other salt), designed to prevent ignition and / or burning out under the action of the fuel segment. The metal inner surface of the wrapping material 58 of the aerosol generating segment 51 may act as a carrier for the aerosol forming material and / or at least one flavoring agent.

[0034] According to other embodiments of the present invention, the substrate 55 may include tobacco paper or tobacco-free collected paper, made in the form of a cork. The cork can be loaded with aerosol forming materials, flavors, tobacco extracts, or the like. in various forms (for example, in the form of microcapsules, liquid, powder). A combustion inhibitor (e.g., diammonium phosphate or another salt) can be applied to at least the distal / end portion of the substrate to prevent ignition and / or burnout by the heat generating segment.

[0035] According to the described and / or other embodiments of the present invention, the substrate 55 may include granules or beads made from marumerized and / or non-marumized tobacco. Marumerized tobacco is described, for example, in US Pat. No. 5,105,831 to Banerjee et al, which is incorporated herein by reference. Marumerized tobacco may contain from about 20 to about 50 percent (by weight) of the tobacco mixture in powder form containing glycerin (in an amount from about 20 to about 30 percent by weight), calcium carbonate (in total from about 10 to about 60 percent by weight, often from about 40 to about 60 percent by weight) together with a binder and flavoring agents. The binder may include, for example, carboxymethyl cellulose (CMC), resins (e.g. guar gum), xanthan, pullulan, or alginates. Balls, granules or other marumerized forms can be made in such a way that their sizes are suitable for incorporation into the substrate section and to ensure optimal air flow and obtain the desired aerosol. To hold the substrate in place inside the smoking article, a container such as a cavity or capsule can be formed. Said container may be useful for placing, for example, granules or balls of marumerized and / or non-marumized tobacco. The container can be formed using wrapping materials, as further described below. As used herein, the definition of “tobacco granules” includes pellets, granules or other discrete small particles of tobacco, which may include marumerated and / or non-marinated tobacco. Tobacco granules may have smooth, regular outer shapes (e.g., spheres, cylinders, ovoid shapes, etc.) and / or they may have irregular outer shapes. In one example, the diameter of each tobacco bead may be from less than about 1 mm to about 2 mm. Tobacco granules may at least partially fill a cavity for a substrate of a smoking article, as described herein. In one example, the volume of the cavity for the substrate may be from about 500 mm ³ to about 700 mm (for example, a cavity of a smoking article whose diameter is from about 7.5 to about 7.8 mm and whose length is from about 11 to about 15 mm, while the cavity as a whole has a cylindrical geometry). In one example, the weight of the tobacco beads within the cavity for the substrate may be from about 200 mg to about 500 mg.

[0036] According to still other embodiments of the present invention, the substrate 55 can be made in the form of a monolithic substrate. A monolithic substrate can be obtained, as described in application for US patent No. 12/859494 Stone et al, filed August 19, 2010, which is fully incorporated into this application by reference. Such a substrate may include or consist of extruded material. In addition, the substrate can be obtained by press fit or molding / casting. Thus, the generic term "monolithic substrate" may include a substrate obtained by extrusion or using one of the other methods listed.

[0037] In the case of preferred smoking articles, both ends of the aerosol generation segment 51 are open, allowing exposure to their substrate material 55. The aerosol components generated by the combustion of the smoking end segment for ignition 22 when using the smoking article can easily pass through the generating segment aerosol 51 when tightened at the end 18, placed in the mouth.

[0038] The heat generating segment 35 and the aerosol generating segment 51 together form an aerosol generating system 60. The aerosol generating segment 51 is adjacent to the outlet end of the fuel generating segment 35, so that said segments 51, 35 are located closely in the axial direction. Such segments may adjoin each other or be located at a small distance from each other, which may include a buffer region 53. The shapes and dimensions of the outer cross section of these segments, when viewed in the transverse direction relative to the longitudinal axis of the smoking article 10, can be essentially identical to each other to a friend. The physical arrangement of these components is preferably such that heat is transferred (for example, by a method including conductive and convective heat transfer) from the heat source 40 to the adjacent substrate material 55 for the entire time that the heat source is activated (for example, burns) when using a smoking article 10 .

[0039] The buffer region 53 may reduce possible burnout or other thermal degradation of portions of the aerosol generation segment 51. The buffer region 53 may advantageously include empty airspace, or it may be partially or substantially completely filled with non-combustible material, such as, for example, metal-containing, organic , inorganic, ceramic or polymeric materials, or any combination thereof. The thickness of the buffer regions may be from about 1 mm to about 10 mm or more, but the thickness will often be from about 2 mm to about 5 mm.

[0040] The components of the aerosol generation system 60 and the smoking end segment for the ignition 22 are preferably connected to each other and secured in place using a wrapping material 64. For example, the wrapping material 64 may include paper wrapping material or a paper-type laminate that bounds each a component comprising a fuel segment 35, at least a portion of an outer longitudinally extending surface of the aerosol generation segment 51, and at least a portion of an end a new ignition segment 22 adjacent to the heat generation segment. The inner surface of the wrapping material 64 can be attached to the outer surfaces of the components, which the specified material limits, using a suitable adhesive. The wrapping material 64 preferably extends along a substantial portion of the length of the smoking end segment for ignition 22.

[0041] The smoking article 10 preferably includes a suitable mouthpiece, such as, for example, a filter element 65 located at its end 18, placed in the mouth. The filter element 65 is preferably located at one end of the cigarette rod adjacent to one end of the aerosol generation segment 51, so that the filter element 65 and the aerosol generation segment 51 are located closely in the axial direction, adjacent to each other, but without any barrier between them. The main shapes and cross-sectional dimensions of these segments 51, 65 are preferably substantially identical to each other when viewed in the transverse direction relative to the longitudinal axis of the smoking article. The filter element 65 may include a filter material 70, which is wrapped with a limiting material Fitzella 72 along its surface, passing in the longitudinal direction. In one example, the filter material 70 includes plasticized cellulose acetate fiber, while in other examples, the filter material may further include activated charcoal in an amount of from about 20 to about 80 mg, placed as a separate load or distributed throughout the acetate fiber in a Dalmatian filter type. " Both ends of the filter element 65 are preferably open, allowing the aerosol to pass through said element. The aerosol generation system 60 is preferably attached to the filter element 65 by the rim material 78. The filter element 65 may also include a destructible flavor capsule of the type described in US Patent Nos. 7479098 to Thomas et al. And 7793665 Dube et al; and U.S. Patent Application Publication No. 2009/01941 18 to Ademe et al, which are incorporated herein by reference in their entirety.

[0042] The smoking article 10 may include air supply means, such as a series of perforated openings 81, each of which can pass through the rim material 78 of the filter element and the ficella material 72 in the manner shown, and / or which can pass to the substrate 55 or to the substrate 55 .

[0043] The overall dimensions of the smoking article 10 before burning may vary. Typically, smoking articles 10 are cylindrical rods whose circumference is from about 20 mm to about 27 mm, and the total length is from about 70 mm to about 130 mm, often from about 83 mm to about 100 mm. The lengths of the smoking end segments for ignition 22 are usually from about 3 mm to about 15 mm, but can reach up to about 30 mm. The total length of the aerosol generating system 60 may vary from about 20 mm to about 65 mm. The length of the fuel segment 35 of the aerosol generating system 60 may be from about 5 mm to about 30 mm; and the total length of the aerosol generation segment 51 of the aerosol generation system 60 may be from about 10 mm to about 60 mm.

[0044] The amount of smoking material 26 used to produce the smoking end segment for ignition 22 may vary. Typically, smoking segment 22, made predominantly from crushed tobacco, contains at least about 20 mg, in general at least about 50 mg, often at least about 75 mg and often at least 100 mg of tobacco material, calculated on the dry basis mass. The packing density of the smoking material 26 inside the smoking end portion of the ignition 22 will preferably be less than the density of the fuel cell (for example, from about 100 to about 400 mg / cm ³ ). The smoking end segment for ignition 22 substantially preferably contains smoking material 26 and does not contain a carbonaceous component of the fuel cell.

[0045] The cumulative amount of aerosol forming agent and substrate material 55 used in the aerosol generation segment 51 may vary. The specified material can preferably be used to fill a suitable section of the aerosol generating segment 51 (for example, the area inside its wrapping material 58) at a packing density of from about 100 to about 400 mg / cm ³ .

[0046] In use, the smoker lights the end for ignition 14 of the smoking article 10 using a match or lighter in a manner similar to that of conventional smoking articles. As such, the smoking material 26 of the smoking end portion of the ignition 22 starts to burn. The end 18 of the smoking article 10 placed in the mouth is in the smoker's mouth (lips). Thermal decomposition products (for example, components of tobacco smoke) resulting from the combustion of smoking material 26 pass through the smoking article 10, through the filter element 65 and enter the smoker's mouth. That is, when smoking, the smoking article creates a visible main stream of aerosol, which is similar to the main stream of tobacco smoke of traditional cigarettes, in which the crushed tobacco burns.

[0047] The burning of the smoking end segment for ignition 22 leads to heating of the fuel element 40 of the fuel segment 35, so that it will preferably ignite or otherwise be activated (for example, will start to burn). The heat source 40 within the aerosol generating system 60 will burn and generate the heat necessary to vaporize the aerosol forming material within the aerosol generating segment 51 as a result of heat exchange between the two segments. Some preferred heat sources 40 will not experience volume reduction upon activation, while others may degrade in a manner that results in volume reduction. Preferably, the components of the aerosol generation segment 51 are not thermally decomposed (e.g., carbonized or burned) to any significant degree. The vaporized components are entrained in the air that passes through the aerosol generating area 51. The aerosol thus formed will pass through the filter element 65 and enter the smoker's mouth.

[0048] During some periods of use, the aerosol generated within the aerosol generating segment 51, together with the aerosol (ie, smoke) resulting from the thermal degradation of the smoking material 26 inside the smoking end portion for ignition 22, will pass through the filter element 65 and get into the smoker's mouth. Thus, the main aerosol stream formed by the smoking article 10 includes tobacco smoke generated during the thermal decomposition of the crushed tobacco, as well as during the evaporation of the aerosol forming material. For the first puffs (i.e., during and immediately after smoking), most of the main aerosol stream is formed as a result of thermal decomposition of the smoking end segment 22. For subsequent puffs (i.e., after the smoking segment 22 has been used up and the source is ignited) heat 40 of the aerosol generation system 60), most of the resulting aerosol main stream will be generated by the aerosol generation system 60. After the smoking material 26 is consumed, the heat source 40 goes out and the use of the smoking article I stop (i.e., the smoking process is finished).

[0049] FIG. 2 shows a typical cigarette-shaped smoking article 10. The smoking article 10 includes a fuel segment 35 located at the end for ignition 14, a filter segment 65 located at the other end (end 18 placed in the mouth), and an aerosol generating segment 51 (which may contain tobacco) located between these two segments near end for ignition. The heat generating segment 35 shown in FIG. 2 may comprise a generally cylindrical carbon heat source limited by an insulating material similar to that shown in FIG. 1. The composition and dimensions of the various segments of the smoking article 10 shown in FIG. 2 generally resemble the composition and dimensions described previously with reference to FIG. 1, but without loading smoking material at the distal end / end for ignition, so that the fuel cell is ignited directly, and not with the help of smoking material that has been ignited and burned.

[0050] The filter element 65 is preferably attached to the cigarette rod thus obtained using the rim material 78, using the general method described previously with reference to FIG. 1. Air may be introduced into the smoking article by providing suitable perforated openings 81 near the end portion 18 placed in the mouth, as is known in the art. Filters may contain materials and can be manufactured using methods such as, for example, the methods described in US Pat. Nos. 7,700,019 to Nelson et al. And 7,972,254 Stokes et al; and U.S. Patent Publication Nos. 2008/0142028 Fagg et al; 2009/0288672 Hutchens et al; and 2009/0090372 Thomas et al, each of which is incorporated herein by reference.

[0051] The aroma can be provided or enhanced by using materials enclosed in capsules or microcapsules placed on top of or inside the substrate material 55 of the aerosol generation segment 51 (it can be considered that the smoking article shown in FIG. 1 contains microcapsules present with it for illustrative purposes), wrapping materials, filter element 65, or any other component capable of holding and releasing flavors, preferably with minimal thermal degradation, which would be undesirably changed aroma. Other flavoring components associated with the filter may also be used; see, for example, US Patent No. 5,724,997 to Fagg et al.

[0052] The cigarettes described with reference to FIG. 2 can be used in much the same way as cigarettes sold on the market under the trade name “Eclipse” by R.J. Reynolds Tobacco Company. See also the Steam Hot One cigarette, marketed by Japan Tobacco Inc.

[0053] The smoking materials of the smoking end segment of the ignition most preferably contain a certain shape of tobacco. Preferred smoking materials mainly consist of tobacco, calculated on the dry weight of these materials. That is, most of the dry weight of these materials and most of the mass of the mixture containing these materials (containing a mixture of materials or materials containing additives applied to them or otherwise included in these materials) consists of a certain form of tobacco. All of these materials may be made of tobacco material and may not include any tobacco-free fillers, substitutes or extenders. Smoking material can be processed using tobacco additives, which are commonly used to make cigarettes, such as flavoring and / or flavoring components. A description of these tobacco components with reference to examples and references can be found in US Patent Application Publication No. 2007/215167 to Crooks et al, which is incorporated herein by reference in its entirety.

[0054] The fuel elements of the fuel segment may vary. Suitable fuel cells and typical components, their designs and configurations, and methods and methods for producing said fuel cells and their components are described in US Pat. Nos. 4,704,082 to Banerjee et al; 4,756,318 to Clearman et al; 4,881,556 to Clearman et al; 4,989,619 to Clearman et al; 5,020,548 to Farrier et al; 5,027,837 to Clearman et al; 5,067,499 to Banerjee et al; 5,076,297 to Farrier et al; 5,099,861 to Clearman et al; 5105831 Banerjee et al; 5129409 White et al; 5,148,821 Best et al; 5,156,170 Clearman et al; 5,178,167 Riggs et al; 5,211,684 to Shannon et al; 5,247,947 to Clearman et al; 5,345,955 Clearman et al; 5,469,871 to Barnes et al; 5,551,451 Riggs; 5,560,376 Meiring et al; 5,706,834 to Meiring et al; and 5727571 Meiring et al; and US Patent Application Publication Nos. 2005/0274390 and 2010/0065075 to Banerjee et al; which are incorporated herein by reference.

[0055] Fuel cells often contain carbonaceous material and may include ingredients such as graphite or alumina, as well as high carbon carbonaceous material. Carbon fuel cells include those that have been introduced into cigarettes marketed under the trade names R.J. and Premier and Eclipse. Reynolds Tobacco Company. See also the Steam Hot One cigarette, marketed by Japan Tobacco Inc. Some other fuel cell embodiments are described in US Pat. described in the specified documents. Some fuel cell embodiments may include a foam carbon monolith. According to another embodiment of the present invention, the fuel cell 40 can be extruded together with a layer of insulating material 42, thereby reducing production time and technological costs.

[0056] Fuel cells can be processed (for example, by coating by immersion) using various precursors (for example, metal nitrate or metal oxide) and / or subjected to heat treatment. Such a treatment can provide a reduced concentration of CO in the main stream of aerosol generated by a smoking article containing a treated fuel cell, compared to a smoking article containing an untreated fuel cell. These fuel cells are further described in U.S. Patent Application No. 12/859494, filed August 19, 2010, which is hereby incorporated by reference in its entirety.

[0057] The fuel cell will preferably be limited or otherwise encased in an insulating material or other suitable material. The insulating material can be positioned and applied in such a way as to maintain, hold and maintain the fuel cell in place inside the smoking article. In addition, the insulating material can be positioned so that the discharged air and aerosol can easily pass through it. Examples of insulation materials, components of insulation modules, configurations of typical insulation modules within heat dissipation segments, wrapping materials used to make insulation modules, and methods and methods for producing said components and modules are described in US Pat. No. 4,807,809 to Pryor et al .; 4,893,637 to Hancock et al; 4,938,238 Barnes et al; 5,027,836 to Shannon et al; 5,065,776 Lawson et al; 5,105,838 White et al; 51 19837 Banerjee et al; 5,247,947 to Clearman et al; 5303720 Banerjee et al; 5,345,955 Clearman et al; 539691 1 Casey III et al; 5,546,965 White; 5,727,571 to Meiring et al; 5902431 Wilkinson et al; and 5944025 Cook et al; and U.S. Patent Application Publication No. 2011/0041861 to Sebastian et al; which are incorporated herein by reference. Insulation modules have been introduced into various types of cigarettes marketed under the trademarks "Premier" and "Eclipse" by R. J. Reynolds Tobacco Company and in the form of "Steam Hot One" cigarettes sold by Japan Tobacco Inc.

[0058] Fire retardant materials and additives / combustion inhibitors used in the insulating material may include silica, carbon, ceramic, metal fibers and / or particles. When processing cellulosic or other fibers, such as, for example, cotton, boric acid or various organophosphate compounds can provide the required fire retardant properties. In addition, various organic or metallic nanoparticles, which can act as diammonium phosphate and / or other salts, can impart the required fire resistance property. Other materials used may include organophosphorus compounds, borax, hydrated alumina, graphite, potassium tripolyphosphate, dipentaerythritol, pentaerythritol and high molecular weight alcohols. Other compounds can be used, such as salts of nitrogen-containing phosphonic acids, monoammonium phosphate, ammonium polyphosphate, ammonium bromide, ammonium chloride, ammonium borate, ethanolammonium borate, ammonium sulfamate, halogenated organic compounds, thiourea and antimony oxides, but not listed compounds are preferred . According to each embodiment of fire retardant materials, combustion inhibitors and / or burnout inhibitors used in the insulating material, substrate material and other components (individually or in any combination with each other and / or other materials), the desired properties are most preferably provided without undesirable gas evolution or melting.

[0059] The insulating fabric will preferably have sufficient oxygen diffusibility to maintain the combustion of a smoking article, such as a cigarette, for the required time of use. Accordingly, the insulating fabric due to its structure will preferably be porous. In knitted, woven, or combined woven and knitted structures, the required porosity can be adjusted by arranging the modular equipment so that there are sufficient (required sizes) gaps between the fibers that allow oxygen to diffuse into the heat source. In the case of non-woven fabrics that may not be porous enough to maintain uniform steady burning, additional porosity can be imparted by perforated holes in the insulating material using methods known in the art, including, for example, hot or cold perforation, perforation in flame, embossing, laser cutting, drilling, cutting with knives, chemical perforation, punching holes and other methods. Each of the buffer and insulating material may include non-glazing material, which is a woven material, knitted material or a combination thereof, foamed metal-containing material, foamed ceramic material, foamed ceramic metal-containing composite material and any combination thereof, wherein said material contained in the insulating material , may be the same material that is contained in the buffer material, or different from it.

[0060] Aerosol forming material may vary, and mixtures of different aerosol forming materials can be used, which may be different combinations and varieties of flavoring agents (including various materials that change the perception and / or organoleptic characteristics or the nature of the mainstream smoking aerosol products), wrapping materials, parts placed in the mouth, filter elements, ficella and rim material. Typical types of such components are described in US Patent Application Publication No. 2007/0215167 to Crooks et al, which is incorporated herein by reference in its entirety.

[0061] The substrate material may contain certain forms of tobacco, typically consists predominantly of tobacco and may consist essentially of tobacco material. The shape of the substrate material may vary. According to some embodiments of the present invention, the substrate material is used essentially in the form of a traditional filler (for example, in the form of crushed tobacco). The substrate material in the required configurations can be obtained in another way. The substrate material can be used in the form of an assembled web or sheet using various methods generally described in US Pat. No. 4,807,809 to Pryor et al., Which is incorporated herein by reference in its entirety. The substrate material may be used in the form of a web or sheet that is cut into a plurality of longitudinally extending strands using various methods generally described in US Pat. No. 5,025,814 to Raker, which is incorporated herein by reference in its entirety. The substrate material may be in the form of a loosely twisted sheet so that the spiral-type air passage extends longitudinally through the aerosol generation segment. Typical types of tobacco-containing substrate material can be obtained from mixtures of various types of tobacco; or from one predominant type of tobacco (for example, reconstituted tobacco in the form of a cast sheet or reconstituted tobacco of a paper type consisting mainly of burley tobacco, or reconstituted tobacco in the form of a cast sheet or reconstituted paper-type tobacco consisting mainly of oriental type tobacco).

[0062] The substrate material can also be processed using tobacco additives of the type that is traditionally used for the manufacture of cigarettes, for example using components to impart and / or improve the taste and aroma (casing or top dressing components). See, for example, the types of components described in US 2004/0173229 to Crooks et al., Which are incorporated herein by reference in their entirety.

[0063] The method by which the aerosol forming material is brought into contact with a substrate material (eg, tobacco material) may vary. Aerosol forming material can be applied to the resulting tobacco material, or it can be incorporated into processed tobacco materials in the manufacture of these materials. The aerosol forming material can be dissolved or dispersed in an aqueous liquid or other suitable solvent or liquid carrier and sprayed onto said substrate material. See, for example, US Patent Application Publication No. 2005/0066986 to Nestor et al., Which is incorporated herein by reference in its entirety. The amount of aerosol forming material used relative to the dry weight of the substrate material may vary. Materials containing excessively high levels of aerosol forming material can be difficult to process to produce cigarette rods using conventional types of automated cigarette making equipment.

[0064] The materials in the form of cast sheets may contain relatively high amounts of aerosol forming material. Reconstituted tobaccos obtained using processes used in paper manufacturing may include average levels of aerosol forming material. The tobacco strip and the crushed tobacco may contain lower amounts of aerosol forming material. Within the scope of the present invention, various paper and non-paper substrates can be used, including assembled, laminated, laminated metal / metal bases, strips, balls, such as alumina balls, cellular foam, foam monolith, breathable matrices and other materials. See, for example, US Patent Nos. 5183062; 5,203,355; and 5588446; authored by Clearman and each of which is incorporated into this application by reference.

[0065] According to other embodiments of the present invention, the substrate-containing portion of the aerosol forming segment may include or may consist of extruded or other monolithic material. The extruded substrate can be obtained in the same manner as described in this application with reference to other extruded components. An extruded or other monolithic substrate may include or essentially consist of tobacco, glycerin, water and a binder. In some embodiments, the monolithic substrate may contain from about 10 to about 90 percent by weight of tobacco, from about 5 to about 50 percent by weight of glycerol, from about 1 to about 30 percent by weight of water (before drying and cutting) and from about 0 to about 10 percent by weight of the binder. In addition, the specified substrate may include a filler, such as, for example, calcium carbonate and / or graphite.

[0066] After extrusion, drying and cutting to the desired length, a segmented smoking article, such as an Eclipse type cigarette, can be assembled from the substrate using a hand-made assembly or a cigarette machine (eg, KDF or Protus from Hauni Maschinenbau AG). Elements of a monolithic substrate with a smaller diameter can be combined by folding, gluing or assembling otherwise for use in a smoking article, as described in the present application for other embodiments of the substrate. Preferred substrate wraps include foil coated paper, thick paper, fitzella and / or cigarette paper.

[0067] According to one embodiment of the present invention, a smoking article can be obtained with a monolithic substrate 463 described in this application with reference to FIG. 4, which shows a longitudinal section of a cigarette 410 containing an end for ignition 414 and an end 418 placed in mouth. A monolithic substrate 463 (which can be used in other implementations, such as, for example, the options described with reference to Figs. 1 and 2) can be obtained using any suitable extrusion method, wherein said substrate is shown along with a central hole 495 passing through it in the longitudinal direction. A monolithic substrate cut in length can be from about 1/16 to about 5/8 of the total length of the cigarette, often from about 1/10 to about ½ of the total length of the cigarette (for example, a substrate element 10 mm, 12 mm or 50 in length mm in a cigarette 85 mm or 130 mm long). The segment of the substrate 455 of the body of the cigarette includes a hollow spacer tube 467 located between the substrate 463 and the filter 470. As shown, the filter 470 is made so that the layers of the ficella 472 and the rim paper 478 overlap. The substrate 463 and the tube 467 are surrounded by a wrapping material 458, which can be made, for example, in the form of heat-conducting material (for example, foil-coated paper), thick paper, ficelles or cigarette paper. The wrapping material 464 that surrounds the smoking article along a cylindrical surface (such as, for example, cigarette paper or thick paper) can be arranged so as to connect the heat generating segment 435, the central segment of the substrate 455 and the filtering segment 465. The heat generating segment 435 and other components can perform, as described in this application according to this and other implementation options obtained with the possibility of practical implementation within the scope of the present invention.

[0068] According to another embodiment of the present invention, a smoking article can be obtained together with an elongated monolithic substrate 563 described in this application with reference to FIG. 5, which is a longitudinal sectional view of a cigarette 510 comprising an ignition end 514 and an end 518 placed in the mouth. An elongated monolithic substrate 563 (which can be used in other embodiments of the present invention) can be obtained using any suitable extrusion method, wherein the substrate is shown along with a central hole 595 passing through it in the longitudinal direction. As shown, the filter 570 is made in such a way that the layers of the ficella 572 and the rim paper 578 overlap. The substrate 563 is surrounded by a wrapping material 558, which can be made, for example, in the form of heat-conducting material (for example, foil-coated paper), thick paper, ficelles or cigarette paper. The wrapping material 564 covering the smoking article along a cylindrical surface (such as, for example, cigarette paper or thick paper) can be positioned so as to connect the heat generating segment 535, the central segment of the substrate 555 (consisting essentially of a substrate according to this embodiment) and filter segment 565. The fuel segment 535 and other components can be performed as described in this application according to this and other embodiments obtained with the possibility of practical eskoy implementation within the scope of the present invention.

[0069] According to one embodiment of the present invention, a smoking article can be obtained together with the monolithic substrate 663 described in this application with reference to FIG. 6, which shows a longitudinal section of a cigarette 610 containing an end for ignition 614 and an end 618 placed in the mouth. A monolithic substrate 663 (which can be used in other embodiments of the present invention) can be obtained using any suitable extrusion method, wherein said substrate is shown along with a central hole 695 passing through it in the longitudinal direction. The body of the cigarette includes a tobacco 23 rod 669 located between the substrate 663 and the filter 670. As shown, the filter 670 is made so that the layers of the ficella 672 and the rim paper 678 overlap. The substrate segment 655 formed by the substrate 663 and the tobacco rod 669 is surrounded by a wrapping material 658, which can be made, for example, in the form of heat-conducting material (for example, foil-coated paper), thick paper, ficelles or cigarette paper. The wrapping material 664 covering the smoking article along a cylindrical surface (such as, for example, cigarette paper or thick paper) can be arranged so as to connect the heat generating segment 635, the center segment of the substrate 655 and the filtering segment 665. The heat generating segment 635 and other components can perform, as described in this application according to this and other implementation options obtained with the possibility of practical implementation within the scope of the present invention.

[0070] According to another embodiment of the present invention, a smoking article can be obtained together with a tobacco granule substrate 763 described in this application with reference to FIG. 7, which shows a longitudinal section of a cigarette 710 containing an ignition end 714 and an end 718, placed in the mouth. Substrate 763 (which can be used in other embodiments of the present invention) can be obtained by any suitable method, since marumerization. The body of the cigarette includes a tobacco rod 769 located between the substrate 763 and the filter 770. As shown, the filter 770 is made so that the layers of the ficella 772 and the rim paper 778 overlap. The fuel segment 735 and other components can be performed as described in this application according to this and other embodiments obtained with the possibility of practical implementation within the scope of the present invention.

[0071] The substrate 763 may be located inside the cavity for the substrate 756. The cavity for the substrate 756 can be formed using a heat-generating segment 735 at one end, a tobacco rod 769 at the opposite end and wrapping material 764 extending around the circumference of at least the substrate (and, according to some embodiments of the present invention running along the entire length from the filter to the end for ignition). The structure of the cylindrical container (not shown) may surround the cavity for the substrate 756 located inside the wrapping material 764 between the heat generation segment 735 at one end and the tobacco rod 769 at the opposite end. The fuel segment 735 and the tobacco rod 769 can be connected to each other using the wrapping material 764. To this end, the wrapping material 764 can limit at least the output of the fuel segment 735 and at least the inlet of the tobacco rod 769. The fuel segment 735 and tobacco rod 769 can be positioned at a specific distance from each other in the longitudinal direction. In other words, the fuel segment 735 and the tobacco rod 769 can be positioned not close to each other. The cavity for the substrate 756 can be limited by the space extending in the longitudinal direction inside the wrapping material 764 between the output end of the fuel segment 735 and the input end of the tobacco rod 769, as shown in FIG. 7. The substrate 763 can be located inside the cavity for the substrate 756. For example, the cavity for the substrate 756 can be at least partially filled with tobacco granules. The cavity for substrate 756 may contain substrate 763 and impede the movement of tobacco granules.

[0072] The wrapping material 764 can be made, for example, in the form of heat-conducting material (eg, foil-coated paper), insulating material, thick paper, ficelles, cigarette paper, tobacco packaging paper, or any combination thereof. Additionally or alternatively, the wrapping material 764 may include foil, ceramic material, ceramic fiber paper, carbon felt, glass mat, or any combination thereof. Other wrapping materials known or developed in the art can be used individually or in combination with one or more of these wrapping materials. According to one embodiment of the present invention, the wrapping material 764 may include paper material comprising strips or labels of foil laminated to said material. The wrapping material 764 may include a paper sheet 783. The paper sheet 783 may be sized and shaped to define a fuel segment 735, a cavity for substrate 756, and a tobacco rod 769, as described above. To this end, the paper sheet 783 may have a substantially rectangular shape with a length extending along the longitudinal direction of the smoking article and a width extending in a direction transverse to the longitudinal direction. The width of the paper sheet 783 may be slightly larger than the circumference of the smoking article 710, so that the paper sheet can be made in the form of a tube or a column bounding the outer surface of the smoking article. For example, the width of the paper sheet 783 may be from about 18 to about 29 mm. The length of the paper sheet 783 may be sufficient to extend longitudinally along the entire length of the cavity for the substrate 764 and overlap the heat generating segment 735 and the tobacco rod 769. For example, the length of the paper sheet 783 may be from about 50 to about 66 mm. The length of the paper sheet 783 may be sufficient to cover substantially the entire length of the tobacco rod 769, as shown in FIG. 7. In one example, the thickness of the paper sheet (or other wrapping material) may be from about 1 mil to about 6 mil (from about 0.025 mm to about 0.15 mm).

[0073] A foil strip or sticker 784 can be laminated onto a paper sheet 783 to form a laminated coated area. The foil strip 784 may have a width extending along substantially the entire width of the paper sheet 783 and bounding substantially the entire circumference of the heat generating segment 735, a cavity for the substrate 764, and a tobacco rod 769, as further described below. The strip of foil 784 may also have a length extending along part of the length of the paper sheet 783. The strip of foil 784 may preferably extend along a sufficiently large portion of the length of the paper sheet 783, such that the strip 784 extends along the entire length of the cavity for the substrate 756 and partially covers at least a portion of the fuel segment 735 and the tobacco rod 769. For example, the length of the strip of foil 784 may be from about 16 to about 20 mm. In one example, the thickness of the foil strip may be from about 0.0005 mm to about 0.05 mm.

[0074] The foil strip can be laminated to the inner or outer surface of the paper sheet. The foil strip can be laminated onto a paper sheet using any method currently known or developed in the future, including, for example, thermal lamination. A foil strip can be laminated onto a paper sheet using any glue currently known or developed in the future. In one example, the adhesive can be in the form of cold glue or adhesive of the type that is used to attach the rim materials to other components of the cigarette. A foil strip can be laminated or glued to a paper sheet with or without lubricant. The foil strip can preferably be laminated onto the inner surface of the paper sheet (for example, the surface of the paper sheet facing the cavity for the substrate) to bring into contact the heat-generating segment, the substrate material and / or the tobacco rod. Laminated paper or other wrapping material can be obtained according to the description of US patent No. 6849085 Marton, which is fully incorporated into this application by reference, or according to other suitable methods and / or materials. For example, a foil strip may surround at least the longitudinal part of the substrate cavity and extend along it in the longitudinal direction and may overlap at least the longitudinal part of the heat generating segment and / or the longitudinal part of the tobacco rod. A foil strip can enhance heat transfer between the heat release segment 735 and the substrate 764. Such enhanced heat transfer can promote the evaporation of the aerosol forming material in the substrate 763 to form an aerosol. To this end, a strip of foil 784 can be made of heat-conducting material. A strip of foil 784 can be made of any heat-conducting material, including, for example, tin, aluminum, copper, gold, brass, other heat-conducting materials and / or any combination thereof. Thus, the cavity for the substrate 756 may be limited by a foil laminated paper tube or a column formed by a wrapping material 764. The wrapping material may include a predetermined outer coating of the foil strip at a specific location on the wrapping material.

[0075] The intermediate segment of the smoking article may include a heat generating segment, a segment containing a substrate (eg, a monolithic substrate or a cavity for a substrate containing granules or beads from a substrate material), and a tobacco rod. It may be desirable to manufacture such an intermediate segment from so-called “double-sided” rods that can be processed in conventional type cigarette rod processing devices or suitably modified, such as tipping devices available as Lab MAX, MAX, MAX S or MAX 80 from Hauni-Werke Korber & Co. KG. See, for example, device types described in US Pat. Nos. 3,308,600 to Erdmann et al; 4,281,670 to Heitmann et al; 4,280,187 to Reuland et al; 4850301 Greene, Jr. with co-authors; 6,229,115 Vos et al; 7434585 Holmes; and 7296578 Read, Jr .; and U.S. Patent Application Laid-Open No. 2006/0169295 to Draghetti, each of which is incorporated herein by reference.

[0076] For example, in FIG. 8 shows a double-sided rod that can be obtained in the manufacturing process of the smoking article 710 shown in FIG. 7 or another smoking article described in this application. The double-sided rod may include two intermediate segments, as described above, while the intermediate segments are connected to each other at a common tobacco rod. A two-sided rod may include two fuel segments 835a, 835b located at its opposite longitudinal ends. The tobacco bar 869 may be substantially centered along the longitudinal axis of the bar. The tobacco rod 869 may include two sections 8b9a, 869b, each of which is associated with one intermediate segment. The tobacco rod 869 and two fuel segments 835a, 835b can be connected to each other using wrapping material 864, as described above with reference to FIG. 7. The cavity for the substrate 85ba may be limited within the wrapping material 864 between the heat release segment 835a and the tobacco rod 869. The substrate 8b3a may be located inside the cavity for the substrate 856a. Similarly, the cavity for the substratum 856b may be limited within the wrapping material 864 between the heat release segment 835b and the tobacco rod 869. The substrate 863b may be located inside the cavity for the substrate 856b. Wrapping material 864 may include a paper sheet 883 with strips of foil 884a, 884b laminated to it. The foil strips may generally coincide with the cavities for the substrate, as described above with reference to FIG. 7. The rod can be cut approximately along its longitudinal center to obtain two intermediate segments, each of which is generally made as described above. The tobacco rod, hollow tube and / or filter element can be attached to the output end of each intermediate segment in any way to obtain a smoking article as described above. The method may include providing a wrapper material bounding at least a portion of the heat generating segment, a cavity for the substrate, a tobacco rod, a second cavity for the substrate and at least a portion of the second heat generating segment, a second strip of foil wrapping material bounding the second cavity for the substrate, a foil strip and a second foil strip are set at a predetermined distance from each other, selected to enable accurate and reproducible placement of the strip sky of the foil and the second strip of foil in a predetermined position relative to the cavity for the substrate, the second cavity for the substrate, the fuel segment and the second heat segment.

[0077] The specified double-sided rod and / or intermediate segment can facilitate the processing of the substrate material in the manufacture of a smoking article. For example, a double-sided rod and / or an intermediate segment can be processed using standard processing equipment described above while holding the substrate 863 in the form of tobacco granules between the heat generating segment 835 and the tobacco rod 869 and inside the cavity for the substrate 856. In other words, the substrate, which is tobacco granules may be located inside a double-sided rod and / or intermediate segment, so that further processing can be carried out while avoiding the movement and / or loss of substrate but in the form of tobacco granules.

[0078] The wrapping material 864 can be obtained in the form of an endless ribbon of material containing strips of foil 884 laminated to it in the form of a repeating pattern. In FIG. 9 shows a portion of a tape of wrapping material 864 comprising one repeating portion with a repeating pattern. According to some preferred embodiments of the present invention, foil strips 884 can be placed exactly along the wrapping material 864, so that each specified strip will coincide with the substrate cavity, as described above, when using the wrapping material to produce double-sided rods, as also described above.

[0079] In one example, the repeating portion with a repeating pattern may include a series of segments extending in the longitudinal direction along the wrapping material 864. The first segment 901 may include unlaminated paper. In other words, the first segment 901 may include paper material without a strip of foil laminated to it. The length of the first segment may be from about 4 to about 8 mm. The second segment 902 may extend in the longitudinal direction from the first segment 901 and include foil laminated paper. In other words, the second segment 902 may include paper material with a strip of foil laminated on it, so that the paper material (or other wrapping material) is continuous and contains precisely defined foil strips laminated on it, spaced at predetermined intervals. The length of the second segment 902 may be from about 16 to about 20 mm. The third segment 903 may extend longitudinally from the second segment 902 and may include unlaminated paper. The length of the third segment 903 may be from about 14 to about 18 mm. The fourth segment 904 may extend longitudinally from the third segment 903 and may include foil laminated paper. The length of the fourth segment 904 may be from about 16 to about 20 mm.

[0080] The repeating portion may be repeated any number of times to obtain a wrapping material tape 864 having any length suitable for use in a bobbin or other structure configured to permit the use of wrapping material in a cigarette assembly machine. As will be understood by one of ordinary skill in the art, the placement of the foil strip along the wrapping material is preferably precisely controlled. Any change in placement may lead to a deviation from the set position between the foil strip and the substrate cavity. The tape of wrapping material can be cut, for example, approximately in the longitudinal center of the first segment 901 to obtain a piece of wrapping material suitable for assembling one double-sided rod, as described above. Optical and / or other control devices can be included in the assembly machine or used with it, and can participate in its work to maintain accurate alignment / placement of the foil-containing segments with other components of the smoking article (for example, a heating element segment, a segment containing a substrate) when assembling smoking products.

[0081] FIG. 10 shows yet another example of a construction of a smoking article using a double-sided rod. A two-sided aerosol forming segment 1012 may be used. A two-sided aerosol forming segment may include two aerosol forming segments connected to each other. For example, a two-sided aerosol forming segment 1012 may include two heat generating segments 1035a, 1035b located at its opposite longitudinal ends. The substrate segment 1055 may essentially be centered between the heat generation segments 1035a, 1035b along the longitudinal axis of the bilateral aerosol forming segment 1012. The substrate segment 1055 may include two segments 1055a, 1055b, each of which is associated with one aerosol forming segment. Heat-generating segments 1035a, 1035b and substrate-containing segments 1055a, 1055b can be connected to each other using the bounding wrapping material 1058. The wrapping material 1058 can be obtained as described in this application according to this and other embodiments made with the possibility of practical implementation within the scope of the present invention. For example, the wrapping material 1058 may limit at least a portion of the heat generating segment 1035a, containing the substrate segments 1055a, 1055b and at least a portion of the second heat generating segment 1035b. The wrapping material 1058 may include a foil strip laminated thereto as described above. The specified foil strip can enhance heat transfer between the heat generation segments and the substrate segments.

[0082] The components of the two-sided aerosol forming segment 1012 can be obtained, as described in this application, according to this and other embodiments made with the possibility of practical implementation within the scope of the present invention. For example, a substrate segment may include any type of substrate, including, for example, a monolithic substrate or a tobacco granule substrate. The substrate segment can be obtained in the form of one segment consisting of a substrate material (for example, one piece of extruded monolithic substrate material or one segment of substrate material from tobacco granules), or several segments of substrate material (for example, two or more pieces of extruded monolithic substrate material or two or more segments of a tobacco granule substrate material). The substrate can be installed inside the structure of a cylindrical container. For example, the substrate segment 1055 may include two segments 1055a, 1055b each of which contains a cavity or container for the substrate, at least partially filled with a substrate of tobacco granule material. The cavity or container for the substrate may be limited by the wrapping material 1058. Alternatively, a separate cavity or container for the substrate can be installed inside the wrapping material 1058.

[0083] The two-sided aerosol forming segment 1012 can be cut approximately in its longitudinal center to produce two heat generation segments, each of which is generally constructed as described above. Two fuel segments can be positioned at opposite ends of the tobacco rod 1069, as shown in FIG. 10, and form a double-sided rod 1013. The double-sided rod 1013 can be configured as a whole, as described with reference to FIG. 8. For example, double-sided rod 1013 may include two intermediate segments connected to each other at a common tobacco rod, as described above. The tobacco rod 1069 may include two sections 1069a, 1069b, each of which is associated with one intermediate segment. The tobacco rod 1069 and two aerosol forming segments can be connected to each other using a wrapping material 1064. The wrapping material 1064 can limit at least a portion of each aerosol forming segment (for example, at least a portion of the substrate containing segments 1055a, 1055b and / or at least a portion heat generation segments 1035a, 1035b) and tobacco rod 1069.

[0084] A two-sided rod can be cut approximately in its longitudinal center to obtain two intermediate segments. Two intermediate segments can be positioned at opposite ends of the filter segment 1065, as shown in FIG. 10 to form a double-sided cigarette rod 1015. A double-sided cigarette rod may include two intermediate segments connected to each other at a common filter segment 1065. The filter segment 1065 may include two portions 1065a, 1065b, each of which is connected to one cigarette rod. The filter segment 1065 and two intermediate segments can be connected to each other using a wrapping material 1078. For example, the wrapping material 1078 can limit at least a portion of each intermediate segment (for example, a portion of each tobacco rod 1069a, 1069b) and a filter segment 1065. The wrapping material 1078 can be made in the form of rim material, as described above. The double-sided cigarette rod can be cut approximately at its longitudinal center (i.e., approximately at the longitudinal center of the filter segment 1065) to obtain two smoking articles 1010a, 1010b. Smoking articles can be made as described in this application according to this and other embodiments obtained with the possibility of practical implementation within the scope of the present invention.

[0085] According to yet another embodiment of the present invention, a smoking article can be prepared together with a tobacco granule substrate 1163 described herein with reference to FIG. 11, which is a partial perspective view of a cigarette 1110 containing an end for ignition 1114 and an end 1118 placed in the mouth. Substrate 1163 (which can be used in other embodiments of the present invention) can be obtained by any suitable method, such as a marumerization method. The body of the cigarette contains a tobacco rod 1169 located between the substrate 1163 and the filter 1170. The heat-generating segment 1135 and other components can be performed as described in this application according to this and other embodiments obtained with the possibility of practical implementation within the scope of the present invention. For example, fuel segment 1135 may include one or more recesses formed on its outer surface. The recesses may extend longitudinally along the outer surface of the fuel segment 1135. According to one preferred embodiment of the present invention, the fuel segment 1135 may include 8 recesses located on its outer circumference. In addition, the fuel segment may include one or more longitudinal channels passing through it. The recesses and / or channels can provide the required air flow through the fuel segment 1135. For this purpose, any number of recesses and / or channels can be made, and these recesses and / or channels can have any desired shape or size. For example, recesses and / or channels can be made as described in US Patent Application No. 12/859494 Stone et al, filed August 19, 2010, which is hereby incorporated by reference in its entirety.

[0086] FIG. 12 shows another design example of a smoking article. The wrapping material 1264 can be made in the form of a tube or a column. Wrapping material 1264 can be made as described in this application according to this and other embodiments obtained with the possibility of practical implementation within the scope of the present invention. For example, the wrapping material 1264 may include paper material containing one or more strips or labels of foil laminated to its surface. The foil strips can be arranged so that they coincide with different areas of the smoking article, as further described in this application. The fuel segment 1235 can be inserted into the inlet end of the tube. The fuel segment 1235 can be advanced inside the tube toward the outlet end until at least a portion of the fuel segment is inside the tube and / or is bounded by it. The fuel segment 1235 can be advanced inside the tube toward the outlet end until substantially all of the fuel segment fits inside the tube. Alternatively, part of the fuel segment 1235 may protrude forward from the inlet end of the tube, as shown in FIG. 12.

[0087] The substrate material 1263 can be introduced into the outlet end of the tube. The substrate material 1263 can be advanced inside the tube toward the inlet end to a position near the heat-generating segment 1235. The heat-generating segment 1235 and the substrate material 1263 can together form an aerosol generation system as described above. Substrate material 1263 can be made as described herein in accordance with this and other embodiments obtained with the possibility of practical implementation within the scope of the present invention. For example, the substrate material can be made in the form of a substrate of tobacco granules, as described above. The tube segment located close to the heat generating segment 1035 can be at least partially filled with the material of the substrate from tobacco granules. In other words, the tobacco granule substrate material can be distributed in a tube segment located near the outlet end adjacent to the heat generation segment 1035 to at least partially fill the tube segment. Thus, the tube segment can be made in the form of a container or capsule for accommodating the substrate material from tobacco granules 1263. During the introduction of the substrate material, the tube can be installed in a vertical configuration by positioning the heat-generating segment 1235 at the lower end of the vertical tube. Thus, the fuel segment 1235 can be used to clog the lower end of the tube. The substrate material can be introduced into the upper end of the vertical tube and allow it to fill the tube segment located above the heat-generating segment 1235.

[0088] The tobacco rod 1269 can be inserted into the outlet end of the tube. The tobacco rod can be advanced inside the tube toward the inlet end to be installed close to the substrate material 1263. Thus, the cavity or compartment for the substrate can be formed using the heat-generating segment 1235, the tube of wrapping material 1264 and the tobacco rod 1269. The cavity for the substrate can perform as described above with reference to FIG. 7. When the substrate material 1263 is bounded inside the tube between the heat generation segment 1235 and the tobacco rod 1269, further processing of the components of the smoking article can be carried out while maintaining the substrate inside the tube. In other words, the substrate material essentially cannot move inside or outside the tube of the wrapping material during the post-processing steps.

[0089] The fuel segment 1235, substrate material 1263, and / or tobacco rod 1269 can be attached to each other using a tube of wrapping material. The tobacco rod 1269 may help to maintain the substrate material 1263 inside the tube of wrapping material for further processing. In one example, a second tobacco rod, a hollow filter, or both can be inserted into the outlet end of the tube and pushed inside the tube toward the inlet end to be positioned near the tobacco rod 1269. The second tobacco rod may include several (eg, two or more) tobacco rods made from the same or different types of tobacco. The lengths of the tobacco rod 1269, the second tobacco rod and / or the hollow filter may affect (for example, reduce) the temperature and / or organoleptic properties of the aerosol passing through them. In one example, the length of the tobacco rod 1269 may be from about 5 mm to about 20 mm. In one example, the length of the second tobacco rod, hollow filter, or both may be from about 10 mm to about 40 mm. In this way, an intermediate segment can be obtained that can be arranged as a whole, as described above with reference to FIG. 7-8. The tobacco rod, hollow tube and / or filter element can be attached to the outlet end of the tube in any way to obtain a smoking article as described above. The tube of wrapping material may limit at least a portion of the heat generating segment, substrate material, and at least a portion of the tobacco rod. A foil strip that can be laminated onto the surface of the wrapping material may limit the substrate material as described above.

[0090] According to other embodiments of the present invention, a tobacco granule substrate or an extruded substrate or other monolithic substrate can be used in place of the substrates described in this application with reference to, for example, FIG. 1 and 2. For example, according to one embodiment of the present invention, the substrate 55 shown in FIG. 1 can be replaced with a tobacco granule substrate located inside the base cavity, or with a monolithic substrate containing one or more internal longitudinal channels and / or one or more external recesses. You can use various other filter designs, including perforated filters made of non-porous acetate materials known in the art, as well as other filter configurations, known now or in the future, all within the scope of the present invention. Other portions of cigarettes made using a substrate of tobacco granules or extruded or other monolithic substrates can also be modified according to the state of the art and still be practiced within the scope of the present invention.

[0091] EXAMPLES 1-4 - SAMPLES OF COMPOSITE TOBACCO GRANULES

[0092] In one example, composite substrates from tobacco granules were prepared according to the processes described in this application, wherein said substrates included the following components:

The powder of the tobacco mixture was a mixture of 50% smoke-dried tobacco, 30% burley tobacco and 20% oriental type tobacco. The tobacco was ground to a particle size of about 10 microns. Calcium carbonate was a precipitated agglomerated calcium carbonate.

[0093] EXAMPLES 5-8 - AROMATED COMPOSITION TOBACCO SAMPLES OF GRANULES

[0094] In another example, four flavored tobacco granule composite substrates were prepared according to the processes described in this application, said substrates comprising the following components:

The powder of the tobacco mixture was a mixture of 50% smoke-dried tobacco, 30% burley tobacco and 20% oriental type tobacco. The tobacco was ground to a particle size of about 10 microns. Calcium carbonate was a precipitated agglomerated calcium carbonate.

[0095] A binder may be added to any of the examples described above (for example, examples 1-8 or any other examples). The binder may include, for example, carboxymethyl cellulose, resin (e.g., guar gum), xanthan, pullulan or alginate. The binder can be added in terms of total weight, preferably in the range of from about 0 to about 15%, relative to the finished mixture.

[0096] In the cigarettes according to the present invention, air can be supplied or vented, so that the air dilution rate for such cigarettes can be from about 10 to about 80 percent. As used herein, the term “air dilution” is the ratio (expressed as a percentage) of the volume of air passing through the air supply means to the total volume of air and aerosol passing through the cigarette and leaving the end part of the cigarette placed in the mouth. Higher levels dilution with air can cause a decrease in the efficiency of transfer of aerosol forming material into the main aerosol stream.

[0097] Preferred embodiments of the cigarettes according to the present invention make it possible to make an acceptable number of puffs when smoking. Typically, such cigarettes provide more than about 6 puffs and generally more than about 8 puffs per cigarette when using a smoking machine in standardized smoking conditions. Typically, such cigarettes provide less than about 15 puffs and generally less than about 12 puffs per cigarette when smoking under standardized smoking conditions. Standardized smoking conditions include 35 ml puffs lasting 2 seconds, separated by smoldering lasting 58 seconds.

[0098] The aerosols that are formed in cigarettes according to the present invention are aerosols comprising air-containing components such as vapors, gases, suspended particles, and the like. Aerosol components can form during the burning of tobacco of a certain shape (and possibly other components that burn with the release of heat); thermal decomposition of tobacco caused by heating and carbonization of tobacco (or otherwise exposing tobacco to a certain form of decay); and upon evaporation of an aerosol forming agent. Essentially, the aerosol may contain vaporized components, combustion products (e.g., carbon dioxide and water), incomplete combustion products, and pyrolysis products.

[0099] Aerosol components can also be generated by heat generated during the burning of tobacco of a certain shape (and possibly other components that burn with heat), from substances arranged to be exchanged with tobacco material that burns, and other components that burn out. Aerosol components may also form in the aerosol generation system as a result of the action of the heat generating segment from the aerosol generation segment. According to some embodiments of the present invention, the components of the aerosol generation segment have a common composition and are located inside the smoking article, so that these components, as a rule, will not undergo significant thermal decomposition (for example, as a result of burning, decay, or pyrolysis) under normal conditions of use .

[00100] The drawings in the figures illustrating various embodiments of the invention are not necessarily to scale. Some of the details in the drawings may be enlarged for visual highlighting, and any different amounts or proportions of the parts should not be construed as limiting unless indicated in one or more claims. Those skilled in the art will understand that embodiments not explicitly shown in this application can be practiced within the scope of the present invention, including that the features described in this application for various embodiments can be combined with each other and / or with technologies known today or developed in the future, while remaining within the scope of the claims presented in this application. Accordingly, it is understood that the above detailed description is to be regarded as illustrative and not restrictive. In addition, it should be understood that the following claims, including all equivalents, are intended to determine the nature and scope of the present invention.

Claims (13)

1. A cigarette comprising: an end for ignition and an end placed in the mouth; an end segment placed in a mouth located at a specified end placed in a mouth; a tobacco rod located between the end for ignition and the specified end segment placed in the mouth; an aerosol generation system located between the end for ignition and the tobacco rod, including a heat generating segment located on the end for ignition and comprising a heat source configured to activate the end for ignition when igniting, and an insulating layer of fire-resistant material located around the heat source; and an aerosol generating segment comprising a tobacco granule substrate and an aerosol forming material, wherein the substrate is located inside the substrate cavity defined by the heat segment and the tobacco rod, so that the tobacco granule substrate contacts the heat segment on one side of the substrate cavity and contacts with a tobacco rod on the other side of the cavity for the substrate; wrapping material bounding at least a portion of a fuel segment, an aerosol generation segment, and at least a portion of a tobacco rod; and wherein the wrapping material comprises a foil strip covering at least a longitudinal portion of the substrate cavity and circumferentially extending along the said portion in the longitudinal direction and partially covering at least a longitudinal portion of the heat generating segment. 2. A cigarette according to claim 1, characterized in that the wrapping material limits a significant part of the heat-generating segment, the entire length of the aerosol generation segment and at least a longitudinal portion of the tobacco rod. 3. A cigarette according to claim 1, characterized in that the foil strip extends along substantially the entire length of the substrate cavity. 4. A cigarette according to claim 1, characterized in that the wrapping material contains paper material, and the strip of foil is laminated to the surface of said paper material and mounted on paper material so that the strip of foil exactly matches the cavity for the substrate; and wherein the wrapping material comprises a first portion containing unlaminated paper material not covered by a foil strip, a second portion extending from the first portion and containing a foil strip laminated to the surface of the paper material, such that the foil strip is in direct contact with the substrate from tobacco granules and covers it around the circumference, and the third section, also containing unlaminated paper material, not covered with a strip of foil. 5. A cigarette according to claim 1, characterized in that the foil strip is arranged to be heat-exchanged with the heat-generating segment. 6. A cigarette according to claim 3, characterized in that the foil strip contains a material selected from aluminum, brass, copper and any combination thereof. 7. A cigarette according to claim 1, further comprising a hollow spacer tube located between the tobacco rod and the mouth end. 8. A cigarette according to claim 1, characterized in that the end for ignition contains a portion filled with tobacco, remote from the heat source. 9. A cigarette comprising: an end for ignition and an end placed in the mouth; an end segment placed in a mouth located at a specified end placed in a mouth; wrapping material comprising paper material and a strip of foil; and an aerosol generation system located between the end for ignition and an end segment placed in the mouth, wherein the aerosol generation system is limited to the wrapping material and includes a heat generating segment located on the end for ignition; an aerosol generating segment including a substrate and containing aerosol forming material, the substrate being located inside a cavity defined by a strip of foil laminated to paper material; a tobacco rod located between the aerosol generation system and an end segment placed in the mouth, characterized in that the cavity for the substrate is at least partially bounded at one end of the fuel segment and at least partially bounded at the opposite end of the tobacco rod; and while the wrapping material contains paper material, and a strip of foil is laminated to the surface of the paper material facing the cavity for the substrate; wherein the wrapping material encompasses at least a longitudinal portion of the tobacco rod and at least a portion of a heat generating segment; wherein the foil strip is in direct contact with the substrate, the portion of the heat-generating segment and the tobacco rod, and the paper material of the wrapping material is directly in contact with the portion of the heat-generating segment and the tobacco rod; wherein the substrate in the cavity for the substrate is in direct contact with the heat-generating segment at one end of the cavity for the substrate and is in direct contact with the tobacco rod at the opposite end of the cavity for the substrate; and a strip of foil is mounted on the surface of the paper material in such a way that its position exactly matches the cavity for the substrate. 10. A cigarette according to claim 9, characterized in that the foil strip is arranged to be heat exchanged with the heat generating segment. 11. A cigarette according to claim 9, characterized in that the foil strip contains a material selected from aluminum, brass, copper and any combination thereof. 12. A method of producing a cigarette according to claim 9, comprising: laminating a foil strip onto a paper material to produce a wrapping material, wherein the laminating step includes providing a predetermined coating of the foil strip at a specific location on the wrapping material; limiting at least a portion of the fuel segment and at least a portion of the tobacco rod with wrapping material to provide a cavity for the substrate. 13. A double-sided rod for use for making a cigarette according to claim 9, comprising: a first end and a second end; a fuel segment located at the first end and a second fuel segment located at the second end; a tobacco rod located between the first and second ends; a cavity for the substrate located between the fuel segment and the tobacco rod, and a second cavity for the substrate located between the second fuel segment and the tobacco rod; and a wrapping material bounding at least a portion of the heat generating segment, a cavity for the substrate, a tobacco rod, a second cavity for the substrate and at least a portion of the second heat generating segment, wherein a second foil strip in the composition of the wrapping material limits the second cavity for the substrate, the strip of the foil and the second strip of foil are located at a predetermined distance from each other, selected with the possibility of accurate and reproducible placement of the strip of foil and the second strip and foil into a predetermined position relative to the cavity of the substrate, the second cavity of the substrate, the fuel segment and the second segment of the fuel.

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