Heated cigarette with clove flavor

Abstract

A heated cigarette with clove flavor, the cigarette comprising a packaging material (200), a filter tip portion (100) and a tobacco core material portion (300), wherein the filter tip portion (100) is connected to the tobacco core material portion (300); the packaging material (200) wraps the tobacco core material portion (300) and at least part of the filter tip portion (100); and the tobacco core material portion (300) comprises a tobacco core material, which comprises tobacco and a natural clove raw material, with the mass ratio of the natural clove raw material to the tobacco ranging from 3:7 to 4:6.

Description

Heated cigarette with clove flavor

[0001] The present application claims priority to the Chinese patent application No. 202410449535.0 filed on April 15, 2024 with the Chinese Patent Office, the whole content of the above application is incorporated herein by reference. TECHNICAL FIELD

[0002] The present application belongs to the technical field of novel tobacco, for example, relates to a heated cigarette with clove flavor. BACKGROUND

[0003] Heated cigarette is a new type of tobacco product designed in the way of "heating without burning", which uses a heating device to heat tobacco containing liquid to a certain temperature, so that consumers can enjoy the pleasure and satisfaction brought by key ingredients such as tobacco aroma and nicotine, while avoiding the generation of tar and harmful compounds generated by high-temperature combustion, and basically no side stream smoke, which will not affect the public environment (generally below 350℃). With the rapid development of new tobacco, developing various styles and tastes of heated cigarettes is an important direction to open up the market.

[0004] Clove is a natural plant with unique aroma and multiple pharmacological activities, which is widely used in food, cosmetics, spices and medicine fields. The main components of clove include eugenol, eugenol, clove acid, linalool, etc. Among them, eugenol is the main aroma component of clove, which has multiple effects such as antioxidant, antibacterial, antiviral, etc. Clove aldehyde is the main active component of clove, which has analgesic, antibacterial, anti-inflammatory effects. Clove acid and linalool have antibacterial, antioxidant, antiviral effects. Clove also has analgesic, anti-inflammatory effects. In addition, clove has a unique aroma, which can improve the taste and strength of smoke in heated cigarettes, has good coordination with tobacco aroma, and improves the quality and experience of aerosol. In addition, adding clove in the core material of heated cigarette can also reduce the release of harmful substances in smoke. SUMMARY

[0005] The present application provides a heated cigarette with clove flavor to solve the problems existing in the background art, by reforming the core material of heated cigarette, optimizing the quality ratio of natural clove raw material and tobacco shred of heated cigarette, so that the content and proportion of clove active ingredients in smoke reach a balance with tobacco smoke, thereby improving the smoke taste and product quality of heated cigarette.

[0006] The present application is realized by the following technical scheme:

[0007] A heat-not-burn cigarette with clove flavor, comprising a packaging material, a filter portion and a tobacco core material portion, the filter portion being connected to the tobacco core material portion, the packaging material wrapping the tobacco core material portion and at least a part of the filter portion, the tobacco core material portion comprising a tobacco core material, the tobacco core material comprising tobacco and natural clove raw material, the mass ratio of the natural clove raw material to the tobacco being in the range of 3:7 to 4:6.

[0008] In an embodiment, the natural clove raw material is a processed natural clove raw material, comprising at least one processing procedure that does not destroy the active ingredients in clove, such as cleaning, steaming or cutting.

[0009] In an embodiment, the tobacco is natural tobacco and / or reconstituted tobacco.

[0010] In an embodiment, the tobacco core material portion comprises an inner tobacco core material and an outer tobacco core material, the outer tobacco core material covering the inner tobacco core material, the content of the natural clove raw material in the outer tobacco core material being lower than that in the inner tobacco core material.

[0011] In an embodiment, the radius R of the outer tobacco core material and the radius r of the inner tobacco core material satisfy the following formula: 0.4≤r / R≤0.7 (3).

[0012] In an embodiment, the tobacco core material portion is composed of at least two tobacco core material segments, and the content of the natural clove raw material in the tobacco core material segments increases from the filter portion to the segment away from the filter portion.

[0013] In an embodiment, the length L1 of the tobacco core material segment close to the filter portion and the length L2 of the tobacco core material segment away from the filter portion satisfy the following formula: 0.2≤L1 / L2≤0.9 (4).

[0014] In an embodiment, the filter portion comprises a filter segment and a support segment, the support segment comprising at least one longitudinal cavity.

[0015] In an embodiment, the filter segment is made of acetate tow, and the support segment is composed of at least one of cellulose acetate, paperboard or crimped paper.

[0016] In an embodiment, the overall length of the heat-not-burn cigarette is less than 100 mm.

[0017] In an embodiment, the tobacco core material further comprises a smoking agent, the concentration M of the smoking agent satisfying: M / M0≤12.5×m 2 -12.75×m+3.85 (1);

[0018] Wherein, m represents the ratio of the added amount of the clove product to the total amount of the clove product and the tobacco product, M represents the concentration ratio of the smoking product to the total amount of the clove product and the tobacco product, and M0 represents the optimal addition concentration ratio of the smoking product without adding the clove product.

[0019] In an embodiment, the smoking agent further comprises a concentration ratio satisfying the following condition: M / M0≥1.5×m-0.15 (2).

[0020] In an embodiment, the smoking product is glycerol, and the M0 is 12-20%, 20-22.5%, or 22.5-25%. BRIEF DESCRIPTION OF DRAWINGS

[0021] The above technical content of the present application and the following detailed description will be better understood when read in conjunction with the accompanying drawings. It should be noted that the drawings are only examples of the claimed technical solutions. In the drawings, the same reference numerals represent the same or similar elements.

[0022] Fig. 1 is a schematic view of the cross-sectional structure of a heating cigarette containing natural clove raw materials according to the present application;

[0023] Fig. 2 is a schematic view of the front view of a multi-section structure of a tobacco core material;

[0024] Fig. 3 is a schematic view of the side view of a multi-layer structure of a tobacco core material;

[0025] Fig. 4 is a graph showing the relationship between the addition content of clove and the maximum addition content of glycerol according to the present application;

[0026] Fig. 5 is a graph showing the relationship between the addition content of clove and the minimum addition content of glycerol according to the present application.

[0027] Legend of reference numerals: 100, filter section; 110, filter section; 120, support section; 121, cavity; 200, packaging material; 300, tobacco core material section; L1, length of the tobacco core material section close to the filter section; L2, length of the tobacco core material section away from the filter section; r, inner tobacco core material radius; R, outer tobacco core material radius. DETAILED DESCRIPTION

[0028] The technical solutions of the present application are described in detail below in conjunction with the accompanying drawings. The following examples are only exemplary and can only be used to explain and illustrate the technical solutions of the present application, but cannot be interpreted as a limitation of the technical solutions of the present application.

[0029] As shown in FIG. 1, the aerosol generating article of the present application comprises a filter portion 100, a wrapper 200 and a tobacco core material portion 300, the filter portion 100 and the tobacco core material portion 300 are arranged in sequence from proximal to distal, and the wrapper 200 wraps the tobacco core material portion 300 and at least a portion of the filter portion 100. Heating the tobacco core material portion 300 can produce aerosol substance for smoking. For example, the wrapper 200 is formed of any suitable material or combination of materials. For example, the wrapper 200 is cigarette paper. For example, the cigarette paper has a grammage of 60 g / m2or other suitable parameters.

[0030] The filter portion 100 can comprise a filter segment 110 and a support segment 120, the filter segment 110 and the support segment 120 are arranged adjacent to each other from proximal to distal, and the support segment is arranged adjacent to the tobacco core material portion. For example, the filter portion 100 can be formed of one or more suitable filter materials, and in the present embodiment, the filter portion 100 can comprise a filter formed of cellulose acetate tow.

[0031] In an embodiment, the support segment 120 has a low suction resistance, and the support segment 120 can comprise at least one longitudinal cavity 121, and the support segment 120 is formed of one or more materials selected from the group consisting of: cellulose acetate; paperboard; crimped paper, such as crimped heat-resistant paper or crimped parchment paper; and polymeric material, such as low-density polyethylene (LDPE). In the present embodiment, the support segment 120 can be formed of cellulose acetate.

[0032] The tobacco core material portion comprises tobacco and natural clove raw material, the tobacco of the present application is natural tobacco and / or reconstituted tobacco, and the reconstituted tobacco can be reconstituted tobacco prepared in any manner, such as tobacco sheet prepared by papermaking method, etc. The conventional chemical components of tobacco are: nicotine, reducing sugar, total nitrogen, potassium ion, chloride ion, wherein the addition amount of the natural clove raw material is not more than 30% to 50% of the total mass of the tobacco core material, and in the present embodiment, the addition amount of the natural clove raw material can be 40% of the total mass of the tobacco core material. Nicotine is the main substance that provides physiological strength for tobacco; reducing sugar can balance the pH of smoke and undergo Maillard reaction to provide caramel sweet aroma; total nitrogen provides smoke density for tobacco; potassium ion and chloride ion are closely related to the combustibility of tobacco leaves.

[0033] In other embodiments of the present application, the tobacco core material part comprises an inner tobacco core material and an outer tobacco core material, the outer tobacco core material wraps the inner tobacco core material, and the content of natural clove raw material in the outer tobacco core material is lower than that in the inner tobacco core material. The layered design makes the content of natural clove raw material in the inner and outer tobacco core material different, the content of clove in the inner tobacco core material (radius r) is higher, and the content of clove in the outer tobacco core material (radius R) is lower. During heating, the inner clove raw material can release aroma more concentratedly, while the outer clove raw material plays a supporting role, making the aroma evenly distributed in the entire tobacco core, avoiding the aroma too concentrated or sparse in a certain area, so that each puff can feel uniform and consistent clove aroma.

[0034] In an embodiment, the structural design of the tobacco core material part realizes the improvement of smoke stability and smoking experience through the synergistic optimization of geometric parameters and content distribution, including:

[0035] Segmented design: the tobacco core material part is composed of at least two tobacco core material segments, satisfying 0.2≤L1 / L2≤0.9, L1 / L2 can be between 0.2-0.3; 0.3-0.4; 0.4-0.5; 0.5-0.6; 0.6-0.7; 0.7-0.8; 0.8-0.9, optionally, L1 / L2 can be 0.4 or 0.5 or 0.6. As shown in FIG. 2, L1 is the length of the tobacco core material segment close to the filter part, L2 is the length of the tobacco core material segment away from the filter part, and the content of natural clove in the tobacco core material segment increases from the filter part to the part away from the filter part. This design makes the smoke pass through different segments of tobacco core material in turn during smoking, and the release of clove aroma gradually increases as the smoking progresses, forming an aroma gradient, so that the user can feel the change of clove aroma in each puff, avoiding the monotony and unevenness of aroma during smoking.

[0036] Layered design: the tobacco core material part includes an inner tobacco core material and an outer tobacco core material, the outer tobacco core material wraps the inner tobacco core material, and satisfies 0.4≤r / R≤0.7, for example, r / R can be between 0.4-0.5; 0.5-0.6; 0.6-0.7; optionally, r / R can be 0.5 or 0.6. As shown in FIG. 3, R is the radius of the outer tobacco core material, and r is the radius of the inner tobacco core material. The layered design makes the natural clove raw material content in the inner and outer tobacco core material different, the clove content in the inner tobacco core material is higher, and the clove content in the outer tobacco core material is lower. During heating, the inner clove raw material can release aroma more concentratedly, while the outer clove raw material plays an auxiliary role, so that the aroma is evenly distributed in the entire tobacco core, avoiding the aroma being too concentrated or sparse in a certain area, so that each puff can feel uniform and consistent clove aroma. The circumferential heating appliance uniformly transmits heat by surrounding the outer wall of the tobacco core, the outer tobacco core material has low clove content, is heated first, and releases mild aroma at the initial stage, reducing the initial mouth irritation; the inner tobacco core material has high clove content, and gradually releases rich aroma during the inward penetration of heat, forming a "from surface to inside" aroma gradient. The layered design perfectly matches the heat transfer characteristics of circumferential heating through spatial blocking and thermodynamic regulation, avoiding aroma overloading at the initial stage, ensuring the persistence of the middle and rear aroma, and finally realizing stable and high-quality smoking experience.

[0037] Alternatively, the tobacco core material part is composed of two or more tobacco core material segments, and the natural clove content in the tobacco core material segments increases from the filter part to the part away from the filter part. Such design is beneficial to the stability of the clove content in the smoke. The segmented design makes the natural clove raw material content in different segments of the tobacco core material different, the L1 segment close to the filter part has relatively low clove content, and the L2 segment away from the filter part has relatively high clove content. During smoking, the smoke will pass through L1 and L2 segments in turn, and as the smoking progresses, the release of clove aroma gradually increases, forming an aroma gradient, so that the user can feel the level change of clove aroma in each puff, avoiding monotony and unevenness of the aroma during smoking.

[0038] The natural clove raw material is pretreated when added to the tobacco core material, including but not limited to cleaning, stem steaming, and cutting, which are processing procedures that do not destroy the effective active ingredients in clove. In this embodiment, the natural clove raw material is subjected to cleaning, stem steaming, and cutting processes.

[0039] Natural clove raw material and tobacco addition ratio experiment:

[0040] In the tobacco core material, the mass ratio of natural clove raw material to tobacco is 3:7 to 4:6. To verify the effect of the mass ratio of natural clove raw material to tobacco on the smoking experience, a smoking test with different mass ratios is designed. In an environment with a temperature of 25±2°C and a relative humidity of 60±5%, different mass ratio samples of tobacco core material are prepared and added to heated cigarettes, and the mass of the tobacco core material in each sample is the same, and the mass ratio of natural clove raw material to tobacco (in the examples of the present application, tobacco is in the form of tobacco shreds) is 2:8, 3:7, 4:6 and 5:5.

[0041] Each heated cigarette sample is placed in a heater and heated at a temperature of 250°C. Each sample is smoked 5 times, and the smoking results are recorded to ensure the stability of the data. After each smoking, the mouth is cleaned to avoid the influence of the previous test on the subsequent test, and the experimental results are as follows:

[0042] Table 1 Sensory evaluation results of different mass ratios of clove to tobacco shreds

[0043] Using a heated cigarette smoking machine, the smoke of each heated cigarette sample is collected, and the nicotine, water and carbon monoxide in the smoke are quantitatively detected by gas chromatography. The detection results are as follows:

[0044] Table 2 Smoke analysis results of different mass ratios of natural clove raw material to tobacco shreds

[0045] According to the above experiment, when the mass ratio of natural clove raw material to tobacco shreds in the tobacco core material reaches 3:7, the clove characteristic aroma is significantly increased, the smoke is soft, the aroma is well transmitted, the aroma is harmonious, and the taste is better. In the chemical composition of the smoke, the nicotine content is moderate, the addition of natural clove raw material can effectively reduce the nicotine content, and the nicotine content will not be too low to affect the strength and satisfaction in the sensory evaluation.

[0046] The sample with a mass ratio of 3:7 is sample A. Sample B is prepared by adding clove oil extract to the heated cigarette tobacco core material, so that it contains the same mass of eugenol and β-caryophyllene, α-caryophyllene and other clove-specific aroma substances as sample A.

[0047] Then, the two heated cigarette samples are placed in a heater and heated at a temperature of 250°C. Each sample is smoked 5 times, and the smoking results are recorded to ensure the stability of the data. After each smoking, the mouth is cleaned to avoid the influence of the previous test on the subsequent test, and the experimental results are as follows:

[0048] Table 3 Sensory evaluation results of sample A and sample B

[0049] According to the above experiments, it can be known that, when the addition amount of clove flavoring substances is the same, the addition of natural clove raw materials in the tobacco core material can make the heated cigarette aroma soft and comfortable, stable and natural. Compared with the products added with artificial synthetic essence or clove extract, the direct addition of natural clove raw materials can better retain the original aroma components of clove, and the natural aroma is coordinated and elegant with the aroma of tobacco. Moreover, since the aroma components in the natural clove raw materials are gradually and slowly released during the heating process, the aroma of clove is more persistent and natural in the smoke.

[0050] Smoking agent addition concentration experiment:

[0051] Matrix part sample preparation: Matrix part composition: The matrix part comprises tobacco products, clove products and smoking products. The tobacco products are natural tobacco and / or reconstituted tobacco, and the conventional chemical components thereof include nicotine, reducing sugar, total nitrogen, potassium ion and chloride ion. Nicotine is the main substance for providing physiological strength of tobacco; reducing sugar can balance the pH of smoke and undergo Maillard reaction to provide caramel aroma; total nitrogen provides smoke density for tobacco; potassium ion and chloride ion are closely related to the combustibility of tobacco leaves. When the natural clove material is added to the tobacco material, pretreatment is performed, including but not limited to cleaning and stem steaming, which do not damage the effective active components in clove. The treated clove product is in the form of a filament material with a width of 0.3-0.5 mm. The smoking product is glycerol.

[0052] Different proportions of tobacco and clove filament mass ratio of the tobacco core material are dynamically added with different proportions of glycerol to prepare the following samples:

[0053] Sample 1: Tobacco and clove filament mass ratio: 9:1 (270 mg:30 mg), added with 6% glycerol content of smoking agent;

[0054] Sample 2: Tobacco and clove filament mass ratio: 8:2 (240 mg:60 mg), added with 6% glycerol content of smoking agent;

[0055] Sample 3: Tobacco and clove filament mass ratio: 7:3 (210 mg, 90 mg) added with 6% glycerol content of smoking agent;

[0056] Sample 4: Tobacco and clove filament mass ratio: 6:4 (180 mg, 120 mg), added with 6% glycerol content of smoking agent;

[0057] Sample 5: Tobacco and clove filament mass ratio: 5:5 (150 mg, 150 mg), added with 6% glycerol content of smoking agent;

[0058] Sample 6: Tobacco and clove filament mass ratio: 9:1 (270 mg:30 mg), added with 9% glycerol content of smoking agent;

[0059] Sample 7: Cut tobacco to clove mass ratio: 8:2 (240mg:60mg), with 9% glycerol content smoke additive added;

[0060] Sample 8: Cut tobacco to clove mass ratio: 7:3 (210mg, 90mg), with 9% glycerol content smoke additive added;

[0061] Sample 9: Cut tobacco to clove mass ratio: 6:4 (180mg, 120mg), with 9% glycerol content smoke additive added;

[0062] Sample 10: Cut tobacco to clove mass ratio: 5:5 (150mg, 150mg), with 9% glycerol content smoke additive added;

[0063] Sample 11 : Cut tobacco to clove mass ratio: 9:1 (270mg:30mg), with 12% glycerol content smoke additive added;

[0064] Sample 12: Cut tobacco to clove mass ratio: 8:2 (240mg:60mg), with 12% glycerol content smoke additive added;

[0065] Sample 13: Cut tobacco to clove mass ratio: 7:3 (210mg, 90mg), with 12% glycerol content smoke additive added;

[0066] Sample 14: Cut tobacco to clove mass ratio: 6:4 (180mg, 120mg), with 12% glycerol content smoke additive added;

[0067] Sample 15: Cut tobacco to clove mass ratio: 5:5 (150mg, 150mg), with 12% glycerol content smoke additive added;

[0068] Sample 16: Cut tobacco to clove mass ratio: 9:1 (270mg:30mg), with 15% glycerol content smoke additive added;

[0069] Sample 17: Cut tobacco to clove mass ratio: 8:2 (240mg:60mg), with 15% glycerol content smoke additive added;

[0070] Sample 18: Cut tobacco to clove mass ratio: 7:3 (210mg, 90mg), with 15% glycerol content smoke additive added;

[0071] Sample 19: Cut tobacco to clove mass ratio: 6:4 (180mg, 120mg), with 15% glycerol content smoke additive added;

[0072] Sample 20: Cut tobacco to clove mass ratio: 5:5 (150mg, 150mg), with 15% glycerol content smoke additive added;

[0073] Sample 21: mass ratio of tobacco and clove: 9:1 (270mg:30mg), added with smoking agent containing 18% glycerol content;

[0074] Sample 22: mass ratio of tobacco and clove: 8:2 (240mg:60mg), added with smoking agent containing 18% glycerol content;

[0075] Sample 23: mass ratio of tobacco and clove: 7:3 (210mg, 90mg), added with smoking agent containing 18% glycerol content;

[0076] Sample 24: mass ratio of tobacco and clove: 6:4 (180mg, 120mg), added with smoking agent containing 18% glycerol content;

[0077] Sample 25: mass ratio of tobacco and clove: 5:5 (150mg, 150mg), added with smoking agent containing 18% glycerol content;

[0078] Sample 26: mass ratio of tobacco and clove: 9:1 (270mg:30mg), added with smoking agent containing 21% glycerol content;

[0079] Sample 27: mass ratio of tobacco and clove: 8:2 (240mg:60mg), added with smoking agent containing 21% glycerol content;

[0080] Sample 28: mass ratio of tobacco and clove: 7:3 (210mg, 90mg), added with smoking agent containing 21% glycerol content;

[0081] Sample 29: mass ratio of tobacco and clove: 6:4 (180mg, 120mg), added with smoking agent containing 21% glycerol content;

[0082] Sample 30: mass ratio of tobacco and clove: 5:5 (150mg, 150mg), added with smoking agent containing 21% glycerol content.

[0083] Each heated cigarette sample was placed into the heating device and heated by a circumferential infrared heating device, and the heating temperature was 250℃. Each sample was smoked for 5 times, and the smoking results were recorded to ensure the stability of the data. The mouth was cleaned after each smoking to avoid the influence of the previous test on the subsequent test. Referring to GB5606.4-2005 Cigarettes Part 4 Sensory Technical Requirements, YC / T564-2018 Sensory Evaluation Method of Chinese Cigarette Based on Consumer Experience, and YC / T 497-2014 Sensory Evaluation Method of Chinese Cigarette Style, combined with the characteristics of heated cigarette smoke, the key evaluation indexes were formulated, the sensory smoking was carried out, and the evaluation scores were recorded according to Table 4.

[0084] Table 4: Sensory evaluation score table of heated cigarettes

[0085] The sensory evaluation results of the heated cigarettes made of the tobacco core materials of samples 1-30 are shown in Table 5.

[0086] Table 5: Sensory evaluation record table of heated cigarettes made of samples 1-24

[0087] Through the above experiments, it can be determined that, within the range of different clove product addition amounts, adjusting the addition ratio of the smoking product according to the corresponding formula can obtain a heated cigarette product with a better overall smoking taste. For example, when the clove content is 30%, the sensory evaluation of the heated cigarettes with a glycerol content in the concentration range of 6%-21% is good, among which the heated cigarettes with a glycerol content in the concentration range of 12%-15% have a large amount of smoke, the clove transmission is slightly obvious, and the heated cigarettes with a glycerol content in the concentration range of 18%-21% have obvious clove transmission and aroma. These experimental data provide standardized production standards for the production of heated cigarettes and help to optimize the smoking experience of the products.

[0088] The total score of the sensory evaluation score is greater than or equal to 82.5 points of the heated cigarettes as the standard for the better overall smoking taste. And after repeating the above experiments for many times, at the inflection point, the clove content is 1%, and the glycerol addition concentration is spaced at 0.1%, and the optimal clove addition content and glycerol addition concentration ratio curve is obtained through repeated experiments, as shown in FIGS. 4-5. For heated cigarettes, tobacco products have different optimal smoking product addition concentration ratios according to their tobacco types, growth locations, grades, etc. Therefore, in this application, repeated experiments are performed on different tobacco materials, and the above rules are found. Alternatively, the optimal smoking product addition concentration ratio M0 of the smoking product without adding clove products is 12-20%, 20-22.5%, or 22.5-25%, and the optimal addition concentration ratio M0 can also be 20%.

[0089] As shown in FIG. 4, point A is the optimal selection of the maximum addition concentration of glycerol when no clove product is added. Through curve fitting, it can be found that when the addition amount of clove products accounts for the ratio m of the total amount of clove products and tobacco products, the smoking product is added according to the ratio M that meets the following formula (a):

[0090] When the addition amount of clove products accounts for the ratio m of the total amount of clove products and tobacco products is greater than 0.3, the smoking product is added according to the ratio M that meets the following formula (b): 2- 12.75 x m + 3.85 (b);

[0091] wherein m represents the ratio of the added amount of clove product to the total amount of clove product and tobacco product, M represents the concentration ratio of smoking product to the total amount of clove product and tobacco product, and M0 represents the optimal addition concentration ratio of smoking product without adding clove product.

[0092] As shown in FIG. 5, A' point is the optimal selection of the minimum addition concentration of glycerol measured without adding clove product. Through curve fitting, it can be found that when the ratio of the added amount of clove product to the total amount of clove product and tobacco product is less than or equal to 0.3, formula (a) can be limited to: M / M0≥0.5 x m - 5 x m 2 + 0.6 (c);

[0093] When the ratio of the added amount of clove product to the total amount of clove product and tobacco product is greater than 0.3, the smoking product further includes addition according to the ratio M that meets the following formula (d): M / M0≥1.5 x m - 0.15 (d).

[0094] In combination with the total score of sensory evaluation in Table 5, it is demonstrated that in different intervals of the added amount of clove product, the concentration ratio of smoking product to the total amount of clove product and tobacco product in the heated cigarette can be determined through the added amount of clove product according to formula (a), formula (b), formula (c) or (d) to obtain a better overall smoking taste.

[0095] According to Table 5 and FIGS. 4-5, when the clove content is 10%, the total score of the heated cigarettes prepared from samples 11, 16, 21 and 26 is greater than or equal to 82.5 points, thus the sensory evaluation of the heated cigarettes with glycerol content in the concentration interval of 12-21% is good, the smoke temperature is moderate, the smoke amount is moderate, and the aroma of clove product can be transmitted. By comparing the heated cigarettes prepared from substrate sample 1 and substrate sample 6, it can be found that the heated cigarettes with glycerol content in the concentration interval of 6-9% have the disadvantage of smaller smoke amount.

[0096] When the clove content is 20%, the total score of the heated cigarettes prepared from samples 12, 17, 22 and 27 is greater than or equal to 82.5 points, thus the sensory evaluation of the heated cigarettes with glycerol content in the concentration interval of 10-22% is good, the smoke temperature is moderate, the smoke amount is moderate, and the aroma of clove product can be transmitted. By comparing the heated cigarettes prepared from substrate sample 2 and substrate sample 7, it can be found that the heated cigarettes with glycerol content in the concentration interval of 6-9% have the disadvantage of smaller smoke amount. Therefore, when the clove content is 10-20%, the heated cigarettes prepared with glycerol content in the concentration interval of 6-9% have relatively poor smoke amount during smoking. When the clove content is greater than 20%, the heated cigarettes prepared with glycerol content in the concentration interval of 6-9% have moderate smoke amount during smoking.

[0097] When the clove content is 30%, the total scores of the heated cigarettes prepared from samples 3, 8, 13, 18, 23 and 28 are greater than or equal to 82.5 points, and therefore the sensory evaluation of the heated cigarettes in the glycerol content concentration range of 6-21% is good. For the heated cigarettes in the glycerol content concentration range of 6-9%, the smoke temperature is moderate, the smoke amount is moderate, and the clove aroma is transparent. For the heated cigarettes in the glycerol content concentration range of 12-15%, the smoke temperature is moderate, the smoke amount is large, and the clove aroma is slightly transparent. For the heated cigarettes in the glycerol content concentration range of 18-21%, the smoke temperature of the first puff is slightly high, the clove aroma is obviously transparent, and the clove aroma is obvious.

[0098] When the clove content is 40%, the total scores of the heated cigarettes prepared from samples 9, 14, 19 and 24 are greater than or equal to 82.5 points, and the smoke temperature is moderate. Although the overall score of the heated cigarette prepared from sample 24 with a glycerol content of 18% is relatively good, the smoke temperature of the first two puffs is slightly high, and the consumer experience is reduced. Therefore, the sensory evaluation of the heated cigarettes in the glycerol content concentration range of 9-15% is good.

[0099] When the clove content is 50%, the sensory evaluation of the heated cigarettes with a glycerol content of 12% is good. The heated cigarette prepared from reference substrate sample 15 has a large smoke amount, a prominent clove aroma, a good concentration score of the smoked product, and an overall good smoking taste.

[0100] The concentration ratio of the smoked product to the total amount of the clove product and the tobacco product in the heated cigarette obtained by formula (a), formula (b), formula (c) or (d) has an error of not more than 10%, 8%, 5%, 2% or not more than 1% with respect to the actual concentration ratio of the smoked product to the total amount of the clove product and the tobacco product.

[0101] In the technical solution of the present application, the structural design of the tobacco core material part is optimized by the cooperation of geometric parameters and content distribution to achieve a breakthrough improvement in smoke stability and smoking experience. To verify the influence of different structural designs of the tobacco core material on the smoking experience, different tobacco core structures are designed for smoking test. In an environment with a temperature of 25±2°C and a relative humidity of 60±5%, 300 samples of tobacco core materials with different gradient mass ratios are prepared and added to heated cigarettes, so as to ensure that the mass of the tobacco core material 300 in each sample is the same.

[0102] Tobacco core segmentation experiment:

[0103] Prepare 5 groups of experimental examples and 1 group of comparative examples, which are dynamically matched with clove content gradient. Prepare 6 groups of samples, including 5 groups of experimental examples, L1 / L2 = 0.2; L1 / L2 = 0.4; L1 / L2 = 0.5; L1 / L2 = 0.7; L1 / L2 = 0.9 and one group of comparative examples L1 = 0. Among them, L1 is the length of the tobacco core material segment close to the filter portion, and L2 is the length of the tobacco core material segment away from the filter portion. The mass ratio of natural clove raw material to tobacco corresponding to L1 segment is 3:7; the mass ratio of natural clove raw material to tobacco corresponding to L2 segment is 4:6.

[0104] Put 6 samples into the heater and heat at 250℃. Each sample is smoked 5 times, and the evaluation results are recorded to ensure the stability of the data. After each smoking, the mouth is cleaned to avoid the influence of the previous test on the later test. The experimental results are as follows:

[0105] Table 6 Sensory evaluation results corresponding to different clove addition segment length ratios

[0106] According to the above experiment, compared with the single clove content of the tobacco core material, when the L1 / L2 ratio reaches 0.5, the best smoking experience can be achieved. Because close to the filter portion, the clove content is low, which can effectively reduce the explosive release of aroma during initial heating and reduce irritation. Away from the filter portion, the clove content is higher, and under continuous heating, the high-temperature zone fully releases active ingredients such as eugenol and beta-cinnamic acid, making up for the aroma aftertaste. The aroma intensity increases from the initial mouth to the end, forming a natural transition and avoiding the "front rush and rear empty" defect of traditional homogeneous tobacco core.

[0107] Radius ratio experiment

[0108] Prepare 4 groups of experimental examples and 1 group of comparative examples, which are dynamically matched with clove content gradient. Prepare 5 groups of samples, including 4 groups of experimental examples r / R = 0.4; r / R = 0.5; r / R = 0.6; r / R = 0.7; and one group of comparative examples r = 0. Among them, R is the radius of the outer tobacco core material, and r is the radius of the inner tobacco core material. The mass ratio of natural clove raw material to tobacco corresponding to R layer is 3:7; the mass ratio of natural clove raw material to tobacco corresponding to r layer is 4:6.

[0109] Put 5 heated cigarette samples into the circumferential heater and heat at 250℃. Each sample is smoked 5 times, and the evaluation results are recorded to ensure the stability of the data. After each smoking, the mouth is cleaned to avoid the influence of the previous test on the later test. The experimental results are as follows:

[0110] Table 7 Sensory evaluation results corresponding to different clove addition layer radius ratios

[0111] The circumferential heating device uniformly transmits heat by surrounding the outer wall of the tobacco core, the clove content of the outer tobacco core material is low, and the initial mild aroma is released first to reduce the initial mouth irritation; the clove content of the inner tobacco core material is high, and the rich aroma is gradually released during the inward penetration of heat to form an aroma gradient from the surface to the inside. The layered design can well adapt to the heat transfer characteristics of circumferential heating through space blocking and thermodynamic regulation, avoiding aroma overshoot at the initial stage, ensuring the persistence of the middle and late aroma, and finally realizing stable and high-quality smoking experience. Experimental results show that when r / R is 0.5 or 0.6, the aroma transmission is best, the aroma is in harmony, the aftertaste is full, and the aroma coordination is best.

[0112] The heating cigarette with clove flavor provided by the application optimizes the mass ratio of natural clove raw materials and tobacco added to the tobacco core material, so that the active ingredients in clove are released into the smoke of the heating cigarette, a better heating cigarette product is obtained, and the smoke generated by using the newly prepared tobacco core material can not only exert the aroma and pharmacological effect of clove, but also fully utilize the antioxidant effect of eugenol acetate and beta-cinnamic acid, so that the smoke of the heating cigarette has better taste. In addition, the application adopts a multi-layer segmented tobacco core structure design and a dynamic smoke generating agent ratio model to improve the aroma release gradient and the stability of each puff. In addition, through the synergistic effect between the above parameters, the defects of traditional heating cigarettes, such as aroma overshoot in the front stage and insufficient aftertaste in the rear stage, are solved, the aroma transmission, pharmacological function and antioxidant performance are comprehensively optimized, and quantifiable parameter support is provided for industrial production.

[0113] When the tobacco core material of the application is heated, compared with products adding artificial synthetic essence or clove extract, direct addition of natural clove can better retain the original aroma components of clove, and the natural aroma is coordinated and elegant with the aroma of tobacco. More, because the aroma components of clove are gradually released during the heating process, the aroma of clove is more persistent and natural in the smoke. Compared with the process of purifying and extracting clove oil for secondary processing, the production process of heating cigarettes directly adding clove is simpler, which saves production cost and manufacturing time.

[0114] In addition, the purpose of optimizing the smoking taste of the heating cigarette can be achieved by adjusting the addition ratio of the smoke generating product, and it is found that in the range of different clove product addition amounts, a better addition concentration ratio of the smoke generating product can be obtained by the formula, or the confirmed addition concentration ratio of the smoke generating product can be used to obtain a better addition ratio of the clove product by the formula, which provides standardized production standards for the production of heating cigarettes and has a wide market application prospect.

[0115] The application is to balance the content and proportion of active ingredients by optimizing the mass ratio of natural clove raw materials added to the tobacco core material and tobacco, so as to obtain an aerosol generating article with better taste. Both the aroma and pharmacological effect of clove can be exerted, and the tobacco original aroma and nicotine strength in tobacco can be fully utilized, so that the aerosol generating article has better taste. The innovative segmented design and layered design make the clove aroma release uniformly, avoid local over-concentration or over-dilution, and make the overall smoking experience more stable. At the same time, the amount of smoking agent is dynamically adjusted, further improving the aroma release and smoking stability. The application is simple to prepare, directly adds natural clove, and does not need complex process; is healthy, reduces the release of harmful substances, and utilizes the pharmacological effect of clove; has excellent taste, aroma release, and comprehensive optimization of pharmacological function and antioxidant performance. In summary, the application provides an aerosol generating article which is simple to prepare, healthy, and has excellent taste.

Claims

1. A heat-not-burn cigarette with clove flavor, comprising a packaging material, a filter portion and a tobacco core material portion, the filter portion being connected to the tobacco core material portion, the packaging material wrapping the tobacco core material portion and at least part of the filter portion, the tobacco core material portion comprising a tobacco core material, the tobacco core material comprising tobacco and natural clove raw material, a mass ratio of the natural clove raw material to the tobacco being in a range of 3:7 to 4:

6.

2. The heated cigarette with clove flavor according to claim 1, wherein, The tobacco core material further comprises a smoke generating agent, the concentration M of the smoke generating agent satisfying: M / M0≤12.5×m 2 - 12.75×m+3.85 (1); Wherein, m represents a ratio of an added amount of the clove product to a total amount of the clove product and the tobacco product, M represents a concentration ratio of the smoking product to the total amount of the clove product and the tobacco product, and M0 represents an optimal addition concentration ratio of the smoking product without adding the clove product.

3. The heated cigarette with clove flavor according to claim 2, wherein, The smoking agent further comprises a concentration ratio satisfying the following condition: M / M0≥1.5×m-0.15 (2).

4. The heated cigarette with clove flavor according to claim 3, wherein, The smoking product is glycerol, and the M0 is 12-20%, 20-22.5% or 22.5-25%.

5. The heated cigarette with clove flavor according to claim 4, wherein, The natural clove raw material is a treated natural clove raw material, comprising at least one processing process that does not destroy active ingredients in clove, such as cleaning, stem steaming or cutting.

6. The heated cigarette with clove flavor according to claim 1, wherein, The tobacco is natural tobacco and / or reconstituted tobacco.

7. The heated cigarette with clove flavor according to claim 1, wherein, The tobacco core material portion comprises an inner tobacco core material and an outer tobacco core material, the outer tobacco core material covering the inner tobacco core material, and a content of the natural clove raw material in the outer tobacco core material being lower than that in the inner tobacco core material.

8. The heated cigarette with clove flavor according to claim 7, wherein, The radius R of the outer tobacco core material and the radius r of the inner tobacco core material satisfy the following formula: 0.4≤r / R≤0.7 (3).

9. The heated cigarette with clove flavor according to claim 1, wherein, The tobacco core material portion is composed of at least two tobacco core material segments, and extends away from the filter portion, and the content of the natural clove in the tobacco core material segments increases; Wherein, a length L1 of a tobacco core material segment close to the filter portion and a length L2 of a tobacco core material segment away from the filter portion satisfy the following formula: 0.2≤L1 / L2≤0.9 (4). The filter portion comprises a filter segment and a support segment, the support segment comprising at least one longitudinal cavity, the filter segment being made of acetate fiber filaments, the support segment being composed of at least one of cellulose acetate, paperboard or crimped paper, and the overall length of the heat-not-burn cigarette being less than 100 mm.

10. The heated cigarette with clove flavor according to claim 1, wherein, ​

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