CN108991591A - The low temperature cigarette and preparation method thereof of micropore tobacco segment with high thermal conductivity - Google Patents

Abstract

The invention provides a low-temperature cigarette with a microporous tobacco section with high thermal conductivity and a preparation method thereof, comprising the following steps: crushing the tobacco leaves of the cigarette into fine powder, and the tobacco powder is 50-80% by mass, and the atomizer is 10-25% %, 0.5-10% of adhesive, 5-35% of metal powder, 1-8% of flavor and fragrance for tobacco, and 0-30% of water are mixed evenly, put into a mold with several metal wires in the middle, press into a cigarette stick and dry, Wrapped in aluminum foil, connected with a special filter for low-temperature cigarettes, and made into low-temperature cigarettes according to the traditional cigarette rolling method. The invention significantly increases the quality of the tobacco section of the low-temperature cigarette without changing the length and diameter of the existing low-temperature cigarette; adding metal powder to the raw material formula effectively improves the thermal conductivity. When consumers smoke low-temperature cigarettes, whether it is the tobacco substance close to the heat source or the tobacco substance far away from the heat source, the atomization medium, flavor components and extra fragrance contained in it can be effectively atomized and volatilized; The amount of smoke and physiological satisfaction obtained are stronger and closer to traditional cigarettes. Low-temperature cigarettes are novel in form and can bring consumers a brand-new experience.

Description

Low-temperature cigarette with microporous tobacco segment with high thermal conductivity and its preparation method

technical field

The invention relates to the technical field of novel tobacco products, in particular to a low-temperature cigarette with microporous tobacco segments with high thermal conductivity and a preparation method thereof.

Background technique

Low-temperature cigarettes, also known as heat-not-burn cigarettes, heat the tobacco substance through an external heat source, and the atomization medium, flavor components and added flavors in the tobacco substance are heated to produce a smoke similar to that of traditional cigarettes. Smoke, so that consumers get physiological satisfaction. Tobacco substances in low-temperature cigarettes are only heated but not burned, and the heating temperature (250°C-350°C) is much lower than the combustion temperature (800°C-900°C) of traditional cigarettes. Therefore, the harmful components and biological toxicity of smoke are greatly reduced. Sidestream smoke and ambient smoke are also significantly reduced.

Low-temperature cigarettes were first developed by international companies such as PM (Philip Morris). In recent years, a number of low-temperature cigarette products with good market performance have appeared in the international market, such as iQOS of PM Company, glo of BAT (British American Tobacco), and Ploom of JT (Japan Tobacco). favored by those. Existing low-temperature cigarettes include filter tips and tobacco sections connected in sequence, the total length of which is generally 45-55mm, which is significantly shorter than the total length of traditional cigarettes (generally about 84mm), and the length of tobacco sections is generally 15-20mm, which is significantly shorter than traditional cigarette tobacco Segment length (generally 50-64mm). The existing low-temperature cigarette tobacco segments mainly have two forms: orderly arranged thin slices or cut tobacco, and disorderly arranged thin slices or cut tobacco.

However, at present, when consumers smoke low-temperature cigarettes, whether it is peripheral heating or inner core heating, compared with traditional cigarette smoking, there are problems of insufficient physiological satisfaction and insufficient smoke volume. This is because on the one hand, the tobacco section of low-temperature cigarettes is generally about 0.3 grams (about 0.7 grams in traditional cigarettes), and the tobacco aroma components, atomized medium and added fragrance contained in it are limited; on the other hand, when the external heat source is heated, the tobacco substances The thermal conductivity of itself is poor, the temperature of the tobacco material close to the heat source is higher, the atomization medium, flavor components and added fragrance contained in the tobacco material can be better atomized and volatilized, while the temperature of the tobacco material far away from the heat source is lower, the tobacco The atomization medium, fragrance components and added fragrance contained in the substance cannot be effectively atomized and volatilized.

Contents of the invention

Aiming at the deficiencies in the prior art, the invention discloses a low-temperature cigarette with microporous tobacco segments with high thermal conductivity and a preparation method thereof.

The technical solution provided by the present invention: a method for preparing low-temperature cigarettes with microporous tobacco segments with high thermal conductivity, comprising the following steps:

1) pulverizing the cigarette tobacco leaves into a fine powder with a particle size of 30-100 mesh;

2) The ratio of each component according to the mass percentage is as follows: 50-80% of tobacco powder, 10-25% of atomizer, 0.5-10% of adhesive, 5-35% of metal powder, 1-8% of flavor and fragrance for tobacco, water 0-30%, mixed evenly;

3) Put it into a mold with a number of metal wires evenly distributed in the middle and press it into a cigarette stick with a density of 1.2-2.0g/ ^cm3 , and dry it in the mold at 100-110°C for 10-30 minutes;

4) Wrap the dried tobacco stick with aluminum foil, connect it with a special filter for low-temperature cigarettes, and make low-temperature cigarettes according to the traditional cigarette rolling method.

Further, the atomizing agent is one or a mixture of glycerin and propylene glycol.

Further, the adhesive is carboxymethyl cellulose (CMC), sodium alginate, guar gum or chitosan.

Further, the metal powder is one or a combination of iron, aluminum, magnesium, copper, nickel, tungsten, tin, lead, molybdenum, cobalt, titanium, and tantalum powder, or an alloy prepared by combining several of them powder.

Further, the particle size of the metal powder is 30-100 mesh.

Further, the number of said metal wires is 5-50, and the diameter is 0.1-1.0mm.

Furthermore, for low-temperature cigarettes used for heating the inner core, a metal rod is provided in the middle of the mold, and the shape of the metal rod is different according to the shape of the inner core heating body.

A low-temperature cigarette with microporous tobacco segments with high thermal conductivity prepared by the above-mentioned method.

The tobacco raw material in the tobacco rod is used as the main component of the tobacco rod of the present invention, which endows the tobacco with a natural fragrance and a sense of physiological satisfaction; the atomizer acts as a smoke source to make the amount of smoke sufficient, and provides a smoke experience similar to that of traditional cigarettes; the adhesive can effectively The various components are bonded together for easy molding; metal powder can improve the thermal conductivity of tobacco substances; flavors and fragrances for tobacco can effectively highlight, enrich and modify aroma and fragrance, and improve sensory quality; there are metal wires in the mold , so that the tobacco substance forms micropores when it is molded in the mold, forming an air passage when smoking.

The density of shredded tobacco in traditional cigarettes is generally around 0.25g/cm ³ , and the density of tobacco segments in low-temperature cigarettes generally does not exceed 0.30g/cm 3 , regardless of whether they are arranged in an orderly or disorderly manner. cm ³ or so. After the tobacco leaves are pulverized, they can be pressed into a tobacco stick with a density of 1.2-2.0 g/cm ³ in a mold according to the method of the present invention, which greatly increases the amount of tobacco substances.

In the existing traditional cigarettes or low-temperature cigarettes, there will be certain gaps between the filamentous materials of the tobacco segments. When the cigarette is smoked, the smoke generated will enter the filter tip along the axial direction from the gaps in the filamentary materials, and finally enter the consumer. The oral cavity, consumers thus obtain physiological satisfaction. Therefore, if there is no metal wire in the mold, the tobacco powder, atomizer, adhesive, tobacco flavor and fragrance, and water are directly mixed and compacted in the mold to make a smoke stick. In any gap, the generated smoke has no air path to enter the consumer's mouth, so although direct compaction increases the density, it has no practical significance for the smoking of low-temperature cigarettes. Metal wires are set in the mold of the present invention, so that the tobacco substance forms micropores during molding in the mould, forming an air passageway during suction, and when the consumer smokes, the generated smoke enters the consumer along the fine air passageway Oral cavity, consumers thus obtain physiological satisfaction. If there are too many micropores or the diameter is too large, the gap in the cigarette rod is too large, and the resistance of the cigarette is too small, which will cause a feeling of "empty draw". The resistance is also too large, and "can't move" occurs when pumping. Preferably, the number of said metal wires is 10-30, and the diameter is 0.1-0.5mm.

The invention has the following beneficial effects: 1. Without changing the length and diameter of the existing low-temperature cigarettes, the quality of the tobacco section of the low-temperature cigarette is significantly increased; The draw resistance is appropriate, close to that of traditional cigarettes; 3. Metal powder is added to the formula, which effectively improves the thermal conductivity of the tobacco section. When consumers smoke low-temperature cigarettes, whether it is the tobacco substance close to the heat source or the tobacco substance far away from the heat source, the atomization medium, flavor components and extra fragrance contained in it can be effectively atomized and volatilized; 4. Consumers smoke When inhaling, the amount of smoke obtained is more, the physiological satisfaction is stronger, and it is closer to traditional cigarettes; 5. The cigarette is novel in form, no longer a conventional filamentous substance, but a tobacco stick made of tobacco powder, so that it can Bring consumers a new experience.

Detailed ways

The present invention will be further described below in conjunction with embodiment.

Example 1

A low-temperature cigarette with a microporous tobacco segment with high thermal conductivity and a preparation method thereof. The tobacco leaves of the cigarette are crushed into a fine powder with a particle diameter of 60 mesh, and the percentage by mass is 70% of tobacco powder, 12% of glycerin, 5% of CMC, and bicarbonate Ammonium 0.04%, iron powder 8%, fragrance type essence 1%, water 3.96%, mix uniformly; Pack in the mold that is provided with cylindrical metal rod and 20 metal wires with a diameter of 0.2mm evenly distributed in the middle and press to make density be 1.5g/cm ³ tobacco sticks, and dried in a mold at 105°C for 30 minutes; wrap the dried tobacco sticks with aluminum foil, connect them with special filters for low-temperature cigarettes, and make low-temperature cigarettes according to the traditional cigarette rolling method. This low-temperature cigarette is suitable for pin-type inner core heating.

Example 2

A low-temperature cigarette with a microporous tobacco segment with high thermal conductivity and a preparation method thereof. The tobacco leaves of the cigarette are crushed into a fine powder with a particle diameter of 80 mesh, and the percentage by mass is 75% of tobacco powder, 10% of glycerin, 5% of sodium alginate, Sodium bicarbonate 0.05%, aluminum powder 6%, sweet flavor essence 1.5%, water 2.45%, mix evenly; put into a mold with a sheet metal rod and 20 evenly distributed metal wires with a diameter of 0.2mm in the middle and press Make a smoke stick with a density of 1.6g/ ^cm3 , and dry it in a mold at 105°C for 30 minutes; wrap the dried smoke stick with aluminum foil, connect it with a special filter for low-temperature cigarettes, and make low-temperature cigarettes according to the traditional cigarette rolling method . This low temperature cigarette is suitable for sheet core heating.

Example 3

A low-temperature cigarette with a microporous tobacco section with high thermal conductivity and a preparation method thereof. The tobacco leaves of the cigarette are crushed into a fine powder with a particle diameter of 100 mesh, and the percentage by mass is 72% of tobacco powder, 5% of propylene glycol, 6% of glycerin, guar Glue 5%, Aluminum Potassium Sulfate 0.06%, Magnesium Aluminum Alloy Powder 8%, Tobacco Flavor 1.2%, Water 2.74%, mix evenly; put into a mold with 30 evenly distributed metal wires with a diameter of 0.15mm in the middle Press medium to make a cigarette stick with a density of 1.6g/ ^cm3 , and dry it in a mold at 105°C for 30 minutes; wrap the dried cigarette stick with aluminum foil, connect it with a special filter for low-temperature cigarettes, and make it according to the traditional cigarette rolling method Low temperature cigarettes. This low-temperature cigarette is suitable for peripheral heating.

The inventors evaluated the smoke release performance and sensory quality of the low-temperature cigarettes described in this example. Set up two control samples: control sample 1 is a low-temperature cigarette prepared from existing tobacco sheets, and control sample 2 is a traditional cigarette of a certain brand and specification. The evaluation group was composed of 9 smoking evaluation experts. The sample of Example 1 and the control sample 1 were sucked by a needle-type inner core heating device, the sample of Example 2 was sucked by a sheet-type inner core heating device, and the sample of Example 3 was sucked by a Peripheral heating equipment was used for smoking, and control sample 2 was smoked with traditional cigarettes. The evaluation results show that the low-temperature cigarettes prepared by the invention have sufficient smoke volume, better sense of satisfaction, and the sensory quality is closer to that of traditional cigarettes.

The inventor also tested the tobacco segment weight and cigarette draw resistance of the low-temperature cigarette described in this embodiment. Control sample 1 is a low-temperature cigarette prepared from existing tobacco sheets, and the results are shown in the following table. Find out from test result, each sample cigarette branch length and circumference are consistent, and the low-temperature cigarette prepared by the present invention, its tobacco section weight is obviously higher than the low-temperature cigarette prepared by existing tobacco sheet, also higher than traditional cigarette (about 0.7 gram); The draw resistance is close to that of low temperature cigarettes made from existing tobacco sheets.

Table 1 embodiment of the present invention and the detection result contrast of control sample

sample Cigarette length/mm Cigarette circumference/mm Tobacco segment weight/g Suction resistance/Pa Example 1 45.0 23.1 1.087 536 Example 2 45.0 23.1 1.118 544 Example 3 45.0 23.1 1.126 548 Control 1 45.0 23.1 0.297 532

The above is only a detailed description of specific embodiments of the present invention, and does not limit the present invention. Any modifications, equivalent replacements and improvements made on the design ideas of the present invention should be included in the protection of the present invention. within range.

Claims (8)

1. A method for preparing low-temperature cigarettes with microporous tobacco segments of high thermal conductivity, comprising the following steps: 1) pulverizing the cigarette tobacco leaves into a fine powder with a particle size of 30-100 mesh; 2) The ratio of each component according to the mass percentage is as follows: 50-80% of tobacco powder, 10-25% of atomizer, 0.5-10% of adhesive, 5-35% of metal powder, 1-8% of flavor and fragrance for tobacco, water 0-30%, mixed evenly; 3) Put it into a mold with a number of metal wires evenly distributed in the middle and press it into a cigarette stick with a density of 1.2-2.0g/ ^cm3 , and dry it in the mold at 100-110°C for 10-30 minutes; 4) Wrap the dried tobacco stick with aluminum foil, connect it with a special filter for low-temperature cigarettes, and make low-temperature cigarettes according to the traditional cigarette rolling method. 2. The method for preparing low-temperature cigarettes with microporous tobacco segments with high thermal conductivity according to claim 1, characterized in that: the atomizing agent is a mixture of one or two of glycerin and propylene glycol. 3. the preparation method of the low temperature cigarette with the microporous tobacco section of high thermal conductivity as claimed in claim 1, is characterized in that: described tackiness agent is carboxymethyl cellulose (CMC), sodium alginate, guar gum or Chitosan. 4. The method for preparing low-temperature cigarettes with microporous tobacco segments having high thermal conductivity as claimed in claim 1, wherein said metal powder is iron, aluminum, magnesium, copper, nickel, tungsten, tin, lead, One of molybdenum, cobalt, titanium, tantalum powder or their combination, and alloy powder prepared by several combinations. 5. The method for preparing low-temperature cigarettes with microporous tobacco segments with high thermal conductivity according to claim 1, characterized in that: the particle size of the metal powder is 30-100 mesh. 6. The method for preparing low-temperature cigarettes with microporous tobacco segments with high thermal conductivity according to claim 1, characterized in that: the number of said metal wires is 5-50, and the diameter is 0.1-1.0 mm. 7. The method for preparing low-temperature cigarettes with microporous tobacco segments with high thermal conductivity as claimed in claim 1, characterized in that: for the low-temperature cigarettes used for inner core heating, a metal rod is also arranged in the middle of the mold, according to the inner core Depending on the shape of the heating body, the shape of the metal rod is different. 8. A low-temperature cigarette having microporous tobacco segments with high thermal conductivity prepared by the method according to any one of claims 1-7.