Heat-not-burn cigarette core particle as well as preparation method and application thereof

Abstract

The invention provides a heating non-combustible cigarette core particle as well as a preparation method and application thereof. The cigarette core particle is prepared from the following raw materials in parts by mass: 5-80 parts of tobacco leaf powder, 5-19 parts of a smoke agent, 0.4-2.5 parts of an adhesive, 0.1-65 parts of a filling agent and 8-36 parts of water. The heat-not-burn cigarette core particles are uniform in heat conduction, good in smoking sensory effect, high in quality, not prone to deformation and low in cost.

Description

Technical Field

[0001] The invention belongs to the field of tobacco processing technology, and in particular relates to a heat-not-burn cigarette core particle and a preparation method and application thereof. Background Art

[0002] At present, the global tobacco control is becoming increasingly strict, which provides a good opportunity for the development of heated cigarettes. Compared with traditional cigarettes, heated cigarettes have effectively reduced the content of harmful substances in smoke due to their characteristics of heating without burning. At present, the heated cigarette market of Philip Morris, Japan Tobacco Company, etc. has shown an upward trend year by year, and market acceptance has increased year by year.

[0003] At present, the development of heated cigarettes is mainly restricted and blocked by patents. Some companies have perfect patent layout in terms of cigarette structure, cigarette core structure, cooling structure and cooling principle. At present, the mainstream method on the market is to cut thin slices into shreds and roll them into cigarettes. Its advantage is that it has become the mainstream sales, and the existing equipment can be slightly modified to achieve production. The disadvantage is that the thin slices need to be baked at high temperature to shape during the production process, which consumes more energy and also reduces the sensory quality of cigarettes.

[0004] Therefore, how to provide a new heated cigarette product that can circumvent patent blockades and has good practicality and practicability in actual production has become an urgent problem to be solved. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention aims to provide a heat-not-burn cigarette core particle and a preparation method and application thereof. The heat-not-burn cigarette core particle provided by the present invention has uniform thermal conductivity, good smoking sensory effect, high quality, not easy to deform, and low cost.

[0006] In order to achieve the purpose of the invention, the present invention adopts the following technical solutions:

[0007] In a first aspect, the present invention provides a heat-not-burn cigarette core particle, wherein the raw materials for preparing the core particle include, by mass fraction, 5-80 parts of tobacco leaf powder, 5-19 parts of smoke generating agent, 0.4-2.5 parts of adhesive, 0.1-65 parts of filler, and 8-36 parts of water.

[0008] The amount of tobacco leaf powder can be 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75 or 80 parts, etc., the amount of smoke generating agent can be 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18 or 19 parts, etc., and the amount of adhesive can be 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6 The amount of filler can be 0.1 part, 1 part, 5 parts, 10 parts, 15 parts, 20 parts, 25 parts, 30 parts, 35 parts, 40 parts, 45 parts, 50 parts, 55 parts, 60 parts or 65 parts, etc., the amount of water can be 8 parts, 10 parts, 12 parts, 14 parts, 16 parts, 18 parts, 20 parts, 22 parts, 24 parts, 26 parts, 28 parts, 30 parts, 32 parts, 34 parts or 36 parts, etc., but are not limited to the values ​​listed above, and other values ​​not listed within the above numerical range are equally applicable.

[0009] The heat-not-burn cigarette core particles of the above-mentioned specific components have uniform thermal conductivity, can effectively improve the sensory effect of smoking, and are of high quality, not easy to deform, and have low production costs.

[0010] Preferably, the raw materials for preparing the tobacco core particles include, by mass fraction, 12-28 parts of tobacco leaf powder, 5-8 parts of smoke generating agent, 2-2.5 parts of adhesive, 45-58 parts of filler, and 11-17 parts of water.

[0011] Preferably, the heat-not-burn cigarette core particles are cylindrical particles or polygonal particles.

[0012] Preferably, the tobacco core particles are provided with a central channel penetrating the particles in the center along the height direction.

[0013] Preferably, the tobacco core particles are provided with a plurality of peripheral channels penetrating the particles in a high direction around the central channel.

[0014] The heat-not-burn cigarette core particles provided by the present invention are mainly suitable for smoking utensils heated by electromagnetic heating, wherein the central channel is used to place a metal conductive sheet or a conductive rod; the surrounding channels are conducive to air circulation and uniform heat conduction, and can effectively improve the sensory effect of smoking.

[0015] Preferably, the tobacco leaf powder includes any one of flue-cured tobacco leaf powder, sun-cured red tobacco leaf powder, sun-cured yellow tobacco leaf powder, cigar tobacco leaf powder, white tobacco leaf powder or oriental tobacco leaf powder, or a combination of at least two of them.

[0016] Preferably, the smoking agent comprises glycerol.

[0017] Preferably, the binder comprises sodium carboxymethylcellulose.

[0018] Preferably, the filler includes a first filler and a second filler.

[0019] Preferably, the first filler comprises tobacco stem powder.

[0020] Preferably, the second filler comprises any one of metal particles, quartz sand, microcrystalline cellulose, carbon powder particles or wood pulp fibers, or a combination of at least two thereof, preferably a combination of metal particles, quartz sand, microcrystalline cellulose, carbon powder particles and wood pulp fibers.

[0021] The combination of the above-mentioned first filler and the second filler and the combination of the specific second filler can effectively prevent the deformation of the heat-not-burn cigarette core particles during the production process, improve the product yield and improve the quality; at the same time, it can effectively prevent the collapse of the core particles after smoking and reduce ash; and can effectively increase the thermal conductivity inside the core, making the thermal conductivity more uniform, the sensory smoking effect better, and the impact of the material on the sensory organs is also effectively reduced.

[0022] Preferably, the mass ratio of the metal particles, quartz sand, microcrystalline cellulose, carbon powder particles and wood pulp fibers is (0.5-7): (15-45): (3-11): (35-55): (0.3-3), wherein the proportion of the metal particles can be 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5 or 7, and the proportion of the quartz sand can be 15, 20, 25, 30, The number of parts of microcrystalline cellulose can be 3, 4, 5, 6, 7, 8, 9, 10 or 11, the number of parts of carbon powder particles can be 35, 40, 45, 50 or 55, the number of parts of wood pulp fibers can be 0.3, 0.6, 0.9, 1.2, 1.5, 1.8, 2.1, 2.4, 2.7 or 3, but are not limited to the values ​​listed above, and other values ​​not listed within the above numerical range are also applicable.

[0023] Preferably, the metal particles include solid metal particles and / or foamed metal particles.

[0024] Preferably, the solid metal particles include metal particles with smooth surfaces or metal particles with rough surfaces, preferably metal particles with rough surfaces.

[0025] Exemplarily, the material of the metal particles includes iron or iron-cobalt-nickel alloy.

[0026] Preferably, the particle size of the quartz sand is 200-450 μm, for example, 200 μm, 250 μm, 300 μm, 350 μm, 400 μm or 450 μm, but is not limited to the above-listed values, and other unlisted values ​​within the above numerical range are also applicable.

[0027] Preferably, the raw materials for preparing the tobacco core particles also include 0.05-6 parts of flavors and / or fragrances by mass fraction, for example, 0.05 parts, 0.1 parts, 0.5 parts, 1 parts, 1.5 parts, 2 parts, 2.5 parts, 3 parts, 3.5 parts, 4 parts, 4.5 parts, 5 parts, 5.5 parts or 6 parts, etc., but are not limited to the values ​​listed above, and other values ​​not listed within the above numerical range are equally applicable.

[0028] In a second aspect, the present invention provides a method for preparing the heat-not-burn cigarette core particles as described above, the preparation method comprising the following steps:

[0029] The raw materials for preparing the cigarette core particles are mixed and then extruded to obtain the heat-not-burn cigarette cigarette core particles.

[0030] In a third aspect, the present invention provides the use of the heat-not-burn cigarette core particles as described above in the preparation of heat-not-burn cigarettes.

[0031] In a fourth aspect, the present invention further provides a heat-not-burn cigarette, the heat-not-burn cigarette comprising a core particle segment and a acetate fiber segment, the core particle segment comprising the heat-not-burn cigarette core particles as described above.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] The present invention provides a heat-not-burn cigarette core particle, which has the advantages of uniform heat conduction, can effectively improve the sensory effect of smoking, and is of high quality, not easy to deform, and has low production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the structure of the heat-not-burn cigarette core particles provided in the embodiment. DETAILED DESCRIPTION

[0035] The technical solution of the present invention is further described below by specific implementation methods. It should be understood by those skilled in the art that the embodiments are only to help understand the present invention and should not be regarded as specific limitations of the present invention.

[0036] In the following examples, wood pulp fibers were purchased from Shanghai Lvtao Materials Co., Ltd.

[0037] The flavor was purchased from Zhengzhou Tobacco Research Institute. The specific ingredients are: 35 parts of Yunnan tobacco extract, 2 parts of aromatic tobacco extract, 0.1 parts of guaiacol, 0.2 parts of 4-ethylguaiacol, 0.6 parts of maltol, 0.02 parts of 2-acetylpyrazine, 2 parts of American tobacco extract, 0.4 parts of γ-decanolide, 0.2 parts of γ-butyrolactone, 0.01 parts of furanone, 25 parts of propylene glycol, 15 parts of water, and 19.5 parts of alcohol.

[0038] The tobacco leaf powder comprises: 90% flue-cured tobacco powder, 5% oriental tobacco powder, 2.5% burley tobacco powder and 2.5% cigar tobacco powder.

[0039] The tobacco stem shreds powder is flue-cured tobacco stem shreds.

[0040] Example 1

[0041] This embodiment provides a heat-not-burn cigarette core particle, the structure of which is as follows: Figure 1 As shown, there is a central channel in the middle, and seven peripheral channels are distributed around it. The raw materials for its preparation are as follows (by weight):

[0042] 20 parts of tobacco leaf powder, 7 parts of glycerin, 2.2 parts of sodium carboxymethyl cellulose, 20 parts of tobacco stem shreds powder, 35 parts of a second filler (metal particles (solid, rough surface, iron), quartz sand (particle size 200-450 μm), microcrystalline cellulose, bamboo charcoal powder particles and wood pulp fibers in a mass ratio of 2:40:5:40:2), 30 parts of water, and 3 parts of flavors.

[0043] The preparation method is as follows:

[0044] After the raw materials are mixed, they are extruded and molded by a fully automatic cigarette core particle extrusion molding machine to obtain the heat-not-burn cigarette core particles.

[0045] Example 2

[0046] This embodiment provides a heat-not-burn cigarette core particle, the structure of which is as follows: Figure 1 As shown, the raw materials for its preparation are as follows (by weight):

[0047] 12 parts of tobacco leaf powder, 8 parts of glycerin, 2 parts of sodium carboxymethyl cellulose, 20 parts of tobacco stem shreds powder, 25 parts of a second filler (metal particles (solid, rough surface, iron), quartz sand (particle size 200-450 μm), microcrystalline cellulose, coconut shell carbon powder particles and wood pulp fiber mass ratio 0.5:15:3:35:0.3), 17 parts of water, and 6 parts of flavors.

[0048] The preparation method is the same as Example 1.

[0049] Example 3

[0050] This embodiment provides a heat-not-burn cigarette core particle, the structure of which is as follows: Figure 1 As shown, the raw materials for its preparation are as follows (by weight):

[0051] 28 parts of tobacco leaf powder, 5 parts of glycerin, 2.5 parts of sodium carboxymethyl cellulose, 20 parts of tobacco stem shreds powder, 38 parts of a second filler (metal particles (solid, rough surface, iron), quartz sand (particle size 200-450 μm), microcrystalline cellulose, bamboo charcoal powder particles and wood pulp fibers in a mass ratio of 7:45:11:55:3), 11 parts of water, and 0.05 parts of flavor.

[0052] The preparation method is the same as Example 1.

[0053] Example 4

[0054] This embodiment provides a heat-not-burn cigarette core particle, the structure of which is as follows: Figure 1 As shown, the raw materials for its preparation are as follows (by weight):

[0055] 5 parts of tobacco leaf powder, 5 parts of glycerin, 0.4 parts of sodium carboxymethyl cellulose, 30 parts of tobacco stem shreds powder, 35 parts of a second filler (metal particles (solid, rough surface, iron), quartz sand (particle size 200-450 μm), microcrystalline cellulose, bamboo charcoal powder particles and wood pulp fibers in a mass ratio of 0.5:15:3:35:0.3), 8 parts of water and 6 parts of flavors.

[0056] The preparation method is the same as Example 1.

[0057] Example 5

[0058] This embodiment provides a heat-not-burn cigarette core particle, the structure of which is as follows: Figure 1 As shown, the raw materials for its preparation are as follows (by weight):

[0059] 80 parts of tobacco leaf powder, 19 parts of glycerin, 2.5 parts of sodium carboxymethyl cellulose, 5 parts of tobacco stem shreds powder, 5 parts of a second filler (metal particles (foamed, iron), quartz sand (particle size 200-450 μm), microcrystalline cellulose, bamboo charcoal powder particles and wood pulp fibers in a mass ratio of 7:45:11:55:3), 36 parts of water and 0.05 parts of flavor.

[0060] The preparation method is the same as Example 1.

[0061] Example 6

[0062] This embodiment provides a heat-not-burn cigarette core particle, the structure of which is as follows: Figure 1 As shown, the preparation raw material is consistent with Example 1 except that the tobacco stem powder is not included and a reduced portion is allocated to the second filler.

[0063] The preparation method is the same as Example 1.

[0064] Example 7

[0065] This embodiment provides a heat-not-burn cigarette core particle, the structure of which is as follows: Figure 1 As shown, the preparation raw material is consistent with Example 1 except that the second filler is not included and the portion allocated to tobacco stem powder is reduced.

[0066] The preparation method is the same as Example 1.

[0067] Example 8

[0068] This embodiment provides a heat-not-burn cigarette core particle, the structure of which is as follows: Figure 1 As shown, the raw materials for preparation are consistent with those in Example 1 except that the metal particles are not included and the reduced portion is allocated to quartz sand, microcrystalline cellulose, bamboo charcoal powder particles and wood pulp fibers.

[0069] The preparation method is the same as Example 1.

[0070] Example 9

[0071] This embodiment provides a heat-not-burn cigarette core particle, the structure of which is as follows: Figure 1 As shown, the raw materials for preparation are consistent with those in Example 1 except that quartz sand is not included and a reduced portion is allocated to metal particles, microcrystalline cellulose, bamboo charcoal powder particles and wood pulp fibers.

[0072] The preparation method is the same as Example 1.

[0073] Example 10

[0074] This embodiment provides a heat-not-burn cigarette core particle, the structure of which is as follows: Figure 1 As shown, the raw materials for preparation are consistent with those in Example 1 except that microcrystalline cellulose is not included and a reduced portion is allocated to quartz sand, metal particles, bamboo charcoal powder particles and wood pulp fibers.

[0075] The preparation method is the same as Example 1.

[0076] Embodiment 11

[0077] This embodiment provides a heat-not-burn cigarette core particle, the structure of which is as follows: Figure 1 As shown, the raw materials for preparation are consistent with those in Example 1 except that bamboo charcoal powder particles are not included and a reduced portion is allocated to quartz sand, microcrystalline cellulose, metal particles and wood pulp fibers.

[0078] The preparation method is the same as Example 1.

[0079] Example 12

[0080] This embodiment provides a heat-not-burn cigarette core particle, the structure of which is as follows: Figure 1 As shown, the preparation raw materials are consistent with Example 1 except that wood pulp fibers are not included and a reduced portion is allocated to quartz sand, microcrystalline cellulose, bamboo charcoal powder particles and metal particles.

[0081] The preparation method is the same as Example 1.

[0082] Embodiment 13

[0083] This embodiment provides a heat-not-burn cigarette core particle, the structure of which is consistent with that of Embodiment 1 except that it does not include a peripheral channel.

[0084] Embodiment 14

[0085] This embodiment provides a heat-not-burn cigarette core particle, the structure of which is consistent with that of Embodiment 1 except that the metal particles (solid, rough surface, made of iron) are replaced with an equal amount of metal particles (solid, smooth surface, made of iron).

[0086] Effect test:

[0087] The yield rate (good quality means no breakage) of the heat-not-burn cigarette core particles provided in Examples 1-14 was counted, and the heat-not-burn cigarette core particles provided in Examples 1-14 were respectively assembled with acetate fiber filter rods and wrapped with molding paper to obtain heat-not-burn cigarettes, which were subjected to sensory evaluation and the falling of the core after smoking was observed.

[0088] The yield rate of cigarette core = number of undamaged particles / total number of randomly selected particles × 100%.

[0089] The randomly selected sample library is all the finished products of the corresponding embodiment cigarette core particles obtained after pilot production, and the total number of randomly selected particles is 2000. Whether they are good products is judged by manual observation.

[0090] The cigarette core drop rate test is to randomly select 1,000 qualified cigarette core samples from the good cigarette core particles, prepare them into complete cigarettes, and perform cigarette plugging and pulling experiments on them one by one. The cigarette plugging and pulling experiment is to place the complete cigarette in the smoking device that matches the heated cigarette, without smoking, and pull out the cigarette after a complete heating cycle, and count the number of cigarette cores left in the smoking device.

[0091] Cigarette core drop rate = number of cigarettes with cigarette cores left in the smoking utensil / total number of tested cigarettes × 100%.

[0092] The sensory evaluation was based on the sensory evaluation method for tobacco and tobacco products (YC / T 138-1998), and all personnel involved in the sensory evaluation met the requirements and quantity specified in the document.

[0093] The results are as follows:

[0094]

[0095]

[0096] From the above data, it can be found that the heat-not-burn cigarette core particles provided by the present invention have the advantages of uniform thermal conductivity, good smoking sensory effect, high quality and not easy to deform; by comparing Examples 1, 6-12, it can be found that the present invention can further prevent the deformation of the heat-not-burn cigarette core particles in the production process by selecting the first filler and the second filler combination and the specific second filler combination, thereby improving the product yield, improving the product quality and reducing ash; by comparing Examples 1 and 13, it can be found that the present invention can effectively promote uniform thermal conduction and improve the smoking sensory effect by setting surrounding channels; by comparing Examples 1 and 14, it can be found that the present invention can effectively improve the product yield by using metal particles with smooth surfaces.

[0097] The applicant declares that the present invention uses the above-mentioned embodiments to illustrate the heat-not-burn cigarette core particles and the preparation method and application thereof, but the present invention is not limited to the above-mentioned embodiments, that is, it does not mean that the present invention must rely on the above-mentioned embodiments to be implemented. Those skilled in the art should understand that any improvement of the present invention, equivalent replacement of the raw materials of the product of the present invention, addition of auxiliary components, selection of specific methods, etc., all fall within the protection scope and disclosure scope of the present invention.

[0098] The preferred embodiments of the present invention are described in detail above. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, a variety of simple modifications can be made to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.

[0099] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

Claims

1. A heat-not-burn cigarette core particle, characterized in that: The raw materials for preparing the cigarette core particles include, by mass fraction, 5-80 parts of tobacco leaf powder, 5-19 parts of smoke generating agent, 0.4-2.5 parts of adhesive, 0.1-65 parts of filler, and 8-36 parts of water.

2. The heat-not-burn cigarette core particle according to claim 1, characterized in that: The raw materials for preparing the cigarette core particles include, by mass fraction, 12-28 parts of tobacco leaf powder, 5-8 parts of smoke generating agent, 2-2.5 parts of adhesive, 45-58 parts of filler, and 11-17 parts of water.

3. The heat-not-burn cigarette core particle according to claim 1 or 2, characterized in that: The heat-not-burn cigarette core particles are cylindrical particles or multi-prism particles.

4. The heat-not-burn cigarette core particle according to any one of claims 1 to 3, characterized in that: The cigarette core particles are provided with a central channel penetrating the particles in the center along the height direction; Preferably, the tobacco core particles are provided with a plurality of peripheral channels penetrating the particles in a high direction around the central channel.

5. The heat-not-burn cigarette core particle according to any one of claims 1 to 4, characterized in that: The tobacco leaf powder includes any one of flue-cured tobacco leaf powder, sun-cured red tobacco leaf powder, sun-cured yellow tobacco leaf powder, cigar tobacco leaf powder, white tobacco leaf powder or oriental tobacco leaf powder, or a combination of at least two thereof; Preferably, the smoke generating agent comprises glycerol; Preferably, the binder comprises sodium carboxymethylcellulose.

6. The heat-not-burn cigarette core particle according to any one of claims 1 to 5, characterized in that: The filler includes a first filler and a second filler; Preferably, the first filler comprises tobacco stem powder; Preferably, the second filler comprises any one of metal particles, quartz sand, microcrystalline cellulose, carbon powder particles or wood pulp fibers, or a combination of at least two thereof, preferably a combination of metal particles, quartz sand, microcrystalline cellulose, carbon powder particles and wood pulp fibers; Preferably, the mass ratio of the metal particles, quartz sand, microcrystalline cellulose, carbon powder particles and wood pulp fibers is (0.5-7):(15-45):(3-11):(35-55):(0.3-3); Preferably, the metal particles include solid metal particles and / or foamed metal particles; Preferably, the solid metal particles include metal particles with smooth surfaces or metal particles with rough surfaces, preferably metal particles with rough surfaces; Preferably, the particle size of the quartz sand is 200-450 μm.

7. The heat-not-burn cigarette core particle according to any one of claims 1 to 6, characterized in that: The raw materials for preparing the cigarette core particles further include 0.05-6 parts of essence and / or fragrance in terms of mass fraction.

8. A method for preparing heat-not-burn cigarette core particles according to any one of claims 1 to 7, characterized in that: The preparation method comprises the following steps: The raw materials for preparing the cigarette core particles are mixed and then extruded to obtain the heat-not-burn cigarette cigarette core particles.

9. Use of the heat-not-burn cigarette core particles according to any one of claims 1 to 7 in the preparation of heat-not-burn cigarettes.

10. A heat-not-burn cigarette, characterized in that: The heat-not-burn cigarette comprises a core particle segment and a acetate segment, and the core particle segment comprises the heat-not-burn cigarette core particle according to any one of claims 1-7.

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