A heating non-combustion tobacco product smoking section material, a manufacturing process thereof and a heating non-combustion tobacco product

Abstract

The present application relates to the field of tobacco, in particular to a kind of heating not combustion tobacco product smoking section material and its manufacturing process and heating not combustion tobacco product.The manufacturing process provided by the present application reprocesses the rejected tobacco stem that is originally treated as waste into the smoking section material suitable for HNB cigarette, changes waste into treasure, improves the value of raw material, reduces product cost, and through expansion, granulation and feeding treatment, the expanded stem granule has better absorption efficiency, can improve the smoke volume and sensory quality of heating not combustion tobacco product, and tobacco original flavor is prominent.Experiments show that the smoking section material prepared by the present application has liquid content as high as 26.4wt%, which is mixed into the smoking section material of conventional HNB cigarette to improve the sensory quality of cigarette, and the smoke volume of cigarette is increased by 18.2-21.4%, compared with the same type of cigarette, the sensory quality score of cigarette mixed with about 15-20wt% tobacco stem particles is increased by 3-5 points.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of tobacco, in particular to a heating non-combustion tobacco product smoking segment material, a manufacturing process thereof and a heating non-combustion tobacco product. BACKGROUND

[0002] The heating non-combustion (HNB) cigarette smoking segment material generally takes tobacco leaves as the main raw material, adds smoking agents and adhesives after grinding, and then is made into reconstituted tobacco leaves, which are cut into shreds to form the smoking segment material for HNB cigarettes. However, the main problem of such material is that the content of smoking agents is unstable during the processing, the manufacturing cost is relatively high based on the main raw material of tobacco leaves, the tobacco original aroma is not prominent, the added adhesive easily produces non-tobacco aroma, and the smoking quality is reduced. SUMMARY

[0003] Therefore, the technical problem to be solved by the present application is to provide a heating non-combustion tobacco product smoking segment material, a manufacturing process thereof and a heating non-combustion tobacco product. The manufacturing process provided by the present application improves the liquid absorption rate of stem and thread particles, the obtained smoking segment material can improve the smoke volume and sensory quality of the heating non-combustion tobacco product, and the tobacco original aroma is prominent.

[0004] The present application provides a manufacturing process of a heating non-combustion tobacco product smoking segment material, comprising the following steps:

[0005] S1) After the tobacco stem and thread is volume expanded, it is crushed;

[0006] S2) The product obtained in step S1) is subjected to first application of tobacco liquid, and then subjected to first spraying of tobacco powder;

[0007] S3) The product obtained in step S2) is subjected to second application of tobacco liquid, and then subjected to second spraying of tobacco powder;

[0008] S4) The product obtained in step S3) is subjected to third application of tobacco liquid, and then subjected to third spraying of tobacco powder, to obtain a heating non-combustion tobacco product smoking segment material.

[0009] The present application provides a manufacturing process of a heating non-combustion tobacco product smoking segment material, comprising the following steps:

[0010] The present application first expands the tobacco stem in volume. Specifically, the present application expands the tobacco stem in volume to 3-4.5 times the volume of the tobacco stem before expansion. The present application uses dry ice expansion process to expand the tobacco stem in volume. In some embodiments of the present application, the present application uses dry ice expansion process to process the tobacco stem into expanded stem particles with a moisture content of 8-10 wt% through the processes of moisture conditioning, impregnation, hot air drying and winnowing, and the volume of the expanded stem particles is 3-4.5 times the volume of the tobacco stem before expansion.

[0011] The present application expands the tobacco stem in volume and then grinds the obtained product. Specifically, the present application grinds the obtained expanded stem particles after the tobacco stem is expanded in volume. The present application grinds the tobacco stem expanded in volume to 10-16 mesh. The moisture content of the product obtained after grinding of the present application is 6-8 wt%, which is determined by the moisture content of the tobacco stem after expansion. The moisture content of the tobacco stem after expansion is 8-10 wt%, and the moisture content is reduced by about 2 wt% through grinding. In some embodiments of the present application, the present application uses shearing, disc milling and hammering to grind and granulate the obtained expanded stem particles. The ground expanded stem particles are sieved through a double-layer screen with 10 mesh on the top and 16 mesh on the bottom to obtain expanded stem particles between 10-16 mesh and enter the next production process. Particles smaller than 16 mesh are discarded, and particles larger than 10 mesh are re-ground and granulated. The present application grinds the fully expanded tobacco stem into 10-16 mesh particles, which greatly improves the absorption capacity of the smoking agent.

[0012] The present application expands the tobacco stem in volume and grinds the obtained product, and then applies tobacco liquid for the first time. Specifically, the present application applies tobacco liquid for the first time at a ratio of 10-15 wt%. In one embodiment, the present application applies tobacco liquid for the first time at a ratio of 15 wt%. In some embodiments of the present application, the method of applying tobacco liquid of the present application is to use a drum feeder and spray through air pressure.

[0013] The tobacco liquid of the present application comprises an atomizing agent, ethanol, a tobacco sugar and a tobacco extract, and specifically comprises 30wt% to 40wt% of the atomizing agent, 55wt% to 65wt% of the ethanol, 3wt% of the tobacco sugar and 2wt% of the tobacco extract. The atomizing agent of the present application is a mixture of glycerol and propylene glycol, and is generally glycerol and propylene glycol in a weight ratio of 8:2 or 9:1; the ethanol is 95wt% ethanol; and the tobacco sugar is a monosaccharide polymer. That is, the tobacco liquid comprises 30wt% to 40wt% of the mixture of glycerol and propylene glycol, 55wt% to 65wt% of 95wt% ethanol, 3wt% of the monosaccharide polymer and 2wt% of the tobacco extract. In another embodiment of the present application, the tobacco sugar and the tobacco extract are added in the form of a mixture.

[0014] The present application applies the tobacco liquid for the first time and then sprays the tobacco powder for the first time. Specifically, the spraying amount of the first spraying of the tobacco powder is 1wt% to 3wt%. The particle size of the tobacco powder of the present application is 100 mesh or less, and the water content is 5wt% to 8wt%. In one embodiment, the present application processes the tobacco leaves through the processes of loose rehydration, feeding, storage, drying and powdering to obtain the tobacco powder with a particle size of 100 mesh or less and a water content of 5wt% to 8wt%.

[0015] The present application applies the tobacco liquid for the first time and then sprays the tobacco powder for the first time. Specifically, the spraying amount of the first spraying of the tobacco powder is 1wt% to 3wt%. The particle size of the tobacco powder of the present application is 100 mesh or less, and the water content is 5wt% to 8wt%. In one embodiment, the present application processes the tobacco leaves through the processes of loose rehydration, feeding, storage, drying and powdering to obtain the tobacco powder with a particle size of 100 mesh or less and a water content of 5wt% to 8wt%.

[0016] The present application applies the tobacco liquid for the first time and then sprays the tobacco powder for the first time. Specifically, the spraying amount of the first spraying of the tobacco powder is 1wt% to 3wt%. The particle size of the tobacco powder of the present application is 100 mesh or less, and the water content is 5wt% to 8wt%. In one embodiment, the present application processes the tobacco leaves through the processes of loose rehydration, feeding, storage, drying and powdering to obtain the tobacco powder with a particle size of 100 mesh or less and a water content of 5wt% to 8wt%.

[0017] The present application applies the tobacco liquid for the first time and then sprays the tobacco powder for the first time. Specifically, the spraying amount of the first spraying of the tobacco powder is 1wt% to 3wt%. The particle size of the tobacco powder of the present application is 100 mesh or less, and the water content is 5wt% to 8wt%. In one embodiment, the present application processes the tobacco leaves through the processes of loose rehydration, feeding, storage, drying and powdering to obtain the tobacco powder with a particle size of 100 mesh or less and a water content of 5wt% to 8wt%.

[0018] After the heating-not-burning tobacco product smoking segment material is obtained, the obtained material is placed in an environment with a temperature of 20-24% and a relative humidity of 35-40% for 12-24 hours, which can promote the stem and particle to fully absorb the material liquid.

[0019] After the heating-not-burning tobacco product smoking segment material is obtained, the obtained material is placed in an environment with a temperature of 20-24% and a relative humidity of 35-40% for 12-24 hours, which can promote the stem and particle to fully absorb the material liquid.

[0020] The application can apply flavor to the dried heating-not-burning tobacco product smoking segment material, apply flavor according to product design, and enhance the characteristic flavor of the product. After the heating-not-burning tobacco product smoking segment material is applied with flavor, it is placed in an environment with a temperature of 20-24% and a relative humidity of 35-40% for 4-48 hours, which can balance the moisture of the material and promote the stem and particle to absorb the flavor.

[0021] The application also provides a heating-not-burning tobacco product smoking segment material prepared by the above manufacturing process. The application also provides a heating-not-burning tobacco product comprising 15wt%-25wt% of the above manufacturing process prepared smoking segment material and other materials. In some embodiments of the application, the application provides a heating-not-burning cigarette comprising 15wt%-25wt% of the above manufacturing process prepared smoking segment material and other heating-not-burning smoking segment materials. The other materials refer to other heating-not-burning smoking segment materials known to those skilled in the art.

[0022] Other heat-not-combustible smoke-generating materials well-known to those skilled in the art generally employ a rolling method. This involves thoroughly pulverizing tobacco leaves, stems, and additives, then adding atomizing agents, binders, and other substances, mixing them evenly, and finally processing them through rolling, drying, and slitting to produce smoke-generating cigarette materials. During the smoking process, these materials primarily rely on the atomizing agent (glycerol, propylene glycol) to atomize under heating conditions, carrying out some tobacco substances and providing consumers with a similar experience to smoking conventional cigarettes. However, these materials have several drawbacks: firstly, the addition of binders produces some non-tobacco aromas, leading to a negative experience for consumers; secondly, the tobacco substances must be integrated with the atomizing agent to produce a cigarette-like aroma, but the aroma is weak and cannot provide sufficient satisfaction; and thirdly, some atomizing agent is lost during processing, resulting in insufficient atomizing agent content and fewer puffs. The tobacco-generating material produced using the process of this patent has its main components directly extracted and mixed with the tobacco-generating agent before being added to the material, which significantly improves the composition of the smoke during the smoking process and enhances consumer satisfaction. The tobacco stems are fully expanded and made into 10-16 mesh particles, which greatly improves the absorption capacity of the tobacco-generating agent. When used in the tobacco-generating material, it further increases the amount of smoke during the smoking process.

[0023] This invention provides a material for the smoking segment of heated tobacco products, its manufacturing process, and the resulting heated tobacco products. The manufacturing process of this invention reprocesses discarded tobacco stems, previously considered waste, into a smoking segment material suitable for heated tobacco products (HNB). This transforms waste into valuable resources, increases the value of raw materials, reduces product costs, and through expansion, granulation, and additive processing, the expanded stem particles achieve better absorption efficiency, improving the smoke volume and sensory quality of the heated tobacco products, while highlighting the natural aroma of tobacco. Experiments show that the smoking segment material obtained by this invention has a liquid content as high as 26.4 wt%. Adding it to the smoking segment material of conventional HNB cigarettes improves the sensory quality of the cigarettes, increasing the smoke volume by 18.2–21.4%. Compared to similar cigarettes, cigarettes with approximately 15–20 wt% tobacco stem particles show a 3–5 point increase in sensory quality score. Attached Figure Description

[0024] Figure 1 This is a process flow diagram of the manufacturing process of the smoke-generating section material for the heated non-combustible tobacco product described in this invention. Detailed Implementation

[0025] This invention discloses a material for the smoke-generating section of a heated tobacco product, its manufacturing process, and the heated tobacco product itself. Those skilled in the art can refer to this document and appropriately modify the process parameters to achieve the desired result. It should be particularly noted that all similar substitutions and modifications are obvious to those skilled in the art and are considered to be included in this invention. The methods and applications of this invention have been described through preferred embodiments; those skilled in the art can clearly modify or appropriately change and combine the methods and applications described herein without departing from the content, spirit, and scope of this invention to realize and apply the technology of this invention.

[0026] This invention provides a manufacturing process for the smoke-generating section material of HNB (Heated Tobacco Unit), the manufacturing process being as follows: Figure 1 As shown, Figure 1 This is a flow chart illustrating the manufacturing process of the smoke-generating segment material for heated non-combustible tobacco products according to the present invention. The manufacturing process provided by the present invention uses the stems discarded in the traditional cigarette production process as the main raw material, and processes it into smoke-generating segment material that meets the requirements of HNB cigarettes through steps such as dry ice expansion, crushing, screening and granulation, application of atomizing agent and flavoring, drying, and external flavoring.

[0027] The present invention will be further described below with reference to the embodiments:

[0028] Example 1

[0029] I. Expansion of Memes

[0030] Using the traditional dry ice expansion process, through steps such as rehydration, impregnation, hot air drying, and air separation, the stems are processed into expanded stem particles with a moisture content of 9.6 wt%. After expansion, the volume of the stem particles is 4.5 times that of the expanded stems. In this example, the hot air temperature is 200℃, and the expansion rate of the stems is 4.5 (the expansion rate is the ratio of the volume of the expanded stems to the volume of the same weight of expanded stems).

[0031] II. Crushing and Granulation

[0032] The expanded stems are crushed and granulated by shearing, disc grinding, and hammering. The crushed stem particles are then screened through a double-layer screen with an upper 10-mesh and a lower 16-mesh screen. Particles between 10 and 16 mesh enter the next production process, particles smaller than 16 mesh are discarded, and particles larger than 10 mesh are crushed and granulated again.

[0033] III. Liquid Proportioning

[0034] The liquid composition includes an atomizing agent, ethanol, and tobacco sugar; wherein the atomizing agent is glycerol and propylene glycol in a weight ratio of 9:1; the ethanol is 95wt% ethanol; and the tobacco sugar is a mixture of monosaccharide polymer and tobacco extract.

[0035] The specific composition of the liquid is as follows:

[0036] Atomizing agent content: 40 wt%;

[0037] Ethanol content: 55 wt%;

[0038] 3 wt% of tobacco sugar;

[0039] And 2 wt% tobacco extract.

[0040] IV. Preparation of Tobacco Powder

[0041] The blended tobacco leaves are processed into powder with a mesh size of less than 100 mesh and a moisture content of 6.2 wt% through processes such as loosening and rehydration, adding materials, storage, drying, and grinding.

[0042] V. One-time feeding

[0043] The material is fed by a drum feeder and sprayed by compressed air, with a material liquid application ratio of 15wt%.

[0044] VI. Spray smoke powder once

[0045] After the first feeding, the stem granules are sprayed with about 2wt% tobacco powder to reduce the sticking between the stems;

[0046] VII. Secondary feeding

[0047] The material is fed by a drum feeder and sprayed by compressed air, with a material liquid application ratio of 15wt%.

[0048] 8. Second application of smoke powder

[0049] After the second feeding, the stem granules are sprayed with about 1.5wt% tobacco powder to reduce the adhesion between the stem granules;

[0050] 9. Three additions of feed

[0051] The material is fed by roller feeding and sprayed by compressed air, with a material liquid application ratio of 5wt%.

[0052] 10. Spray smoke powder three times

[0053] After three additions of feed, the stem granules are sprayed with 1wt% tobacco powder to reduce the adhesion between the stem granules.

[0054] XI. Storage

[0055] After the feed has been added, the stem granules are placed in an environment with a temperature of 24℃ and a relative humidity of 40% for 24 hours to allow the stem granules to fully absorb the feed liquid.

[0056] 12. Drying

[0057] The drum dryer was used. The drying time was 5 minutes under the conditions of hot air temperature of 90℃ and drum wall temperature of 100℃. The moisture content of the dried stalk granules was 7.2wt%.

[0058] 13. Add fragrance

[0059] After drying, the stem granules are flavored. Flavoring can be applied according to the product design to enhance the product's characteristic flavor.

[0060] XIV. Storage

[0061] After adding fragrance, the stem granules are placed in an environment with a temperature of 24% and a relative humidity of 40% for 24 hours to balance the moisture content of the material and promote the absorption of fragrance by the stem granules.

[0062] In the preparation process of the above-mentioned stem granules, the theoretical amount of liquid added in the three feedings is 35wt%. The actual liquid content of the stem granules after storage in the fourteenth step was tested and found to be 26.4wt%.

[0063] The above-obtained granular material was blended into heated non-combustible cigarettes, and samples S1 to S7 were prepared according to different blending ratios, as shown in Table 1:

[0064] Table 1

[0065]

[0066] Smoke volume and sensory tests were conducted on samples S1 to S7. A score of 0 was given for samples with no smoke at all. Evaluators assessed the smoke volume based on the smoke experience during inhalation, with a maximum score of 9 points. The results are shown in Table 2.

[0067] Table 2

[0068] Sample No. Number of puffs Amount of smoke (0-9) Sensory score S1 9 6.4 74.6 S2 9 6.8 75.2 S3 10 6.9 76.2 S4 10 7.3 78.3 S5 11 7.3 78.2 S6 11 7.6 77.9 S7 12 7.9 76.5

[0069] As shown in Tables 1 and 2, when the smoke-generating section material produced by the method described in this invention is added to the conventional smoke-generating section material, the number of suction ports is increased during the suction process, the amount of smoke is significantly increased, and the sensory quality is improved compared to using conventional materials alone.

[0070] The aforementioned conventional materials are processed using a rolling method. Tobacco leaves, stems, and additives are thoroughly pulverized, then atomizing agents, binders, and other substances are added and mixed evenly. The mixture is then rolled, dried, and slit into shape to produce the smoking section material for cigarettes. The smoking section material produced using the process described in this patent, when blended into the smoking section material, further increases the amount of smoke during inhalation, increasing the smoke volume of the cigarette by 18.2–21.4%. Furthermore, the use of the tobacco stem particles in cigarettes can also improve the sensory quality of the cigarette. Compared to similar cigarettes, cigarettes blended with approximately 15–20 wt% tobacco stem particles show a 3–5 point increase in sensory quality score.

[0071] Example 2

[0072] Using different feeding methods, the same proportion of liquid material was added, and all other steps were the same as in Example 1 above, to obtain stem and skewer granule samples S8 to S10. The test results for sample S11 were taken from the test results for the stem and skewer granules in Example 1 above, to test its effect on the feeding effect. The results are shown in Table 3.

[0073] Table 3

[0074]

[0075] Due to the large proportion of added liquid and the high single-time addition ratio, the material was difficult to atomize during the application process, and a large number of particulate droplets remained, resulting in poor addition effect. During the experiment, there was liquid overflow, and the material's absorption rate of the applied liquid was less than 50 wt%.

[0076] By employing a two-stage feeding method, the proportion of each application was reduced, which improved the atomization effect of the liquid feed. However, the overall growth effect was not significant, and the final application ratio was approximately 19 wt%.

[0077] The three-stage feeding method improves the atomization effect of the liquid material. After each feeding, storage and the application of smoke powder further enhance the absorption effect of the liquid material by the material, with the actual content reaching more than 26 wt%. The effect of three-stage feeding is significantly better than that of single-stage and double-stage feeding. Based on the comprehensive consideration of production efficiency and production quality, this invention adopts the three-stage feeding technology to apply liquid material to the smoke-generating section.

[0078] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A manufacturing process for the smoke-generating segment material of a heat-not-burn tobacco product, characterized in that, Includes the following steps: S1) The tobacco sticks are expanded in volume using a dry ice expansion process and then crushed. S2) After applying tobacco liquid to the product obtained in step S1) for the first time, tobacco powder is then sprayed for the first time; the application ratio of the tobacco liquid in the first application is 10~15 wt%; the spraying amount of the tobacco powder in the first application is 1~3 wt%. S3) After applying tobacco liquid to the product obtained in step S2) a second time, tobacco powder is then sprayed a second time; the application ratio of the second applied tobacco liquid is 10~15 wt%; the spraying amount of the second sprayed tobacco powder is 1~3 wt%. S4) After applying tobacco liquid to the product obtained in step S3) for the third time, tobacco powder is sprayed for the third time to obtain the smoking section material of heated non-combustible tobacco products; the application ratio of the third application of tobacco liquid is 1~5 wt%; the spraying amount of the third spray of tobacco powder is 1 wt%.

2. The manufacturing process according to claim 1, characterized in that, In step S1), the process of expanding the volume of the tobacco sticks specifically involves expanding the volume of the tobacco sticks to 3 to 4.5 times their original volume.

3. The manufacturing process according to claim 1, characterized in that, In step S1), the crushing specifically involves crushing the expanded tobacco stems to 10-16 mesh.

4. The manufacturing process according to claim 1, characterized in that, In step S2), the application ratio of the first application of tobacco liquid is 15 wt%. In step S3), the application ratio of the second application of tobacco liquid is 15 wt%. In step S4), the application ratio of the third application of tobacco liquid is 5 wt%.

5. The manufacturing process according to claim 1, characterized in that, In steps S2) to S4), the tobacco liquid comprises: 30 wt%~40 wt% atomizing agent; 55 wt%~65 wt% ethanol; 3 wt% tobacco sugar; 2 wt% tobacco extract.

6. The manufacturing process according to claim 5, characterized in that, In steps S2) to S4), the tobacco liquid comprises: A mixture of 30 wt% to 40 wt% glycerol and propylene glycol; 95 wt% ethanol at a concentration of 55 wt% to 65 wt%; 3 wt% monosaccharide polymer; 2 wt% tobacco extract.

7. A material for the smoke-generating segment of a heated non-combustible tobacco product, characterized in that, It is prepared by any of the manufacturing processes described in claims 1 to 6.

8. A heated tobacco product, characterized in that, It includes 15 wt% to 25 wt% of the smoke-generating section material obtained by any of the manufacturing processes described in claims 1 to 6 and other materials.

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