A rapid screening method for tobacco leaf raw materials for heated cigarettes

Abstract

This invention discloses a rapid screening method for tobacco leaf raw materials for heated cigarettes, comprising the following steps: (1) pulverizing tobacco leaf raw materials; (2) tobacco core formulation: mixing the pulverized tobacco powder with glycerin, adhesive, and purified water in a certain proportion; (3) mixing evenly; (4) tobacco core forming: selecting an appropriate method for forming according to the tobacco core formulation; (5) tobacco core heat treatment: placing the formed mixture in an oven for baking; (6) tobacco core assembly: preparing heated cigarettes, removing the tobacco core from the smoking section, and then filling it with the formed mixture prepared in step (5), thus completing the tobacco core assembly; (7) using a matching heating device for sensory evaluation to distinguish the quality of different tobacco leaf raw materials. Since the tobacco core preparation process does not involve special instruments and equipment, it can be completed using conventional experimental equipment, making it simple and easy to implement, providing a good smoking experience, with a short process flow, low production costs, and no need for large investments. It is suitable for laboratory sample preparation and sensory evaluation.

Description

Technical Field

[0001] This invention relates to the field of smokeless tobacco products, and in particular to a rapid screening method for heated cigarette tobacco raw materials. Background Technology

[0002] Tobacco leaves are the foundation of tobacco products, largely determining their quality and style. The selection of tobacco leaves is crucial, and currently, selection relies primarily on sensory evaluation, with instrumental testing providing only limited assistance. Traditional cigarettes are evaluated by manually preparing samples of tobacco leaves and burning them. However, heated cigarettes are heated to temperatures below 400℃, which is completely different from the combustion mechanism of traditional cigarettes (around 700℃). Therefore, the evaluation method of directly preparing samples of tobacco leaves for traditional cigarettes is entirely unsuitable for heated cigarettes.

[0003] Currently, the main processes for preparing heated cigarette cores in the industry include slurry method, roll pressing method, papermaking method, and granulation. Regardless of the method, specific equipment is required for sample preparation, and the sample preparation cycle is long and inefficient.

[0004] Therefore, there is an urgent need for a method for preparing tobacco cores that is not limited by processing equipment, is highly efficient, and has low cost, and can highlight the style characteristics of tobacco leaves when heated to within 400℃, so as to meet the needs of sensory evaluation during the development of heated cigarette leaf groups. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a rapid screening method for tobacco raw materials for heated cigarettes. By setting a reasonable core formulation and a simple and easy sample preparation process, the method can stimulate the release of the aroma substances in the tobacco raw materials to achieve the purpose of evaluation and screening.

[0006] The technical problem to be solved by the present invention is achieved through the following technical solution:

[0007] A method for rapid screening of heated cigarette tobacco leaves includes the following steps:

[0008] (1) Powdering of tobacco raw materials: Powder the tobacco raw materials to 80-120 mesh using a grinding mill;

[0009] (2) Cigarette core formula: Mix the tobacco powder ground in step (1) with glycerin, adhesive and purified water in a certain proportion, wherein the tobacco powder content is 20-70%, the glycerin content is 5-30%, the adhesive content is 0-5%, and the water content is 10-60%.

[0010] (3) Mixing: Mix all the raw material components in step (2) evenly;

[0011] (4) Cigarette core forming: Select an appropriate forming method according to the cigarette core formula;

[0012] (5) Heat treatment of the tobacco core: Place the molded mixture obtained in step (4) in an oven at 50-200℃ and bake for 10-30 minutes to make its final moisture content 10-12%;

[0013] (6) Cigarette core assembly: Prepare a heated cigarette, take out the cigarette core of the smoking section, and fill it with the molding mixture prepared in step (5). The filling amount is 0.2-0.4g / cigarette, and the cigarette core assembly is completed.

[0014] (7) Sensory evaluation and differentiation: Sensory evaluation can be carried out with the matching heating equipment to differentiate the quality of different tobacco raw materials.

[0015] Preferably, in step (1), the tobacco raw material is pulverized to 100-120 mesh using a pulverizer.

[0016] Preferably, in step (2), the content of tobacco powder is 62-67%, the content of glycerin is 25%, the content of adhesive is 0-5%, and the content of water is 8%.

[0017] Preferably, in step (4), when the cigarette core formulation is semi-fluid or fluid, it is directly coated onto sulfuric acid paper or waxed paper, with a coating area not exceeding 700 g / m². 2 When the cigarette core formula is non-fluid, the mixed raw materials are squeezed through a 1mm mesh and then rolled into a round shape, eventually forming a columnar object 0-5mm long.

[0018] Preferably, in step (4), when the cigarette core formulation is semi-fluid or fluid, it is directly coated onto sulfuric acid paper or waxed paper, with a coating area not exceeding 300g / m². 2 .

[0019] Preferably, in step (5), the oven temperature is 100-150℃ and the baking time is 15-30min, so that the final moisture content is 6-12%.

[0020] Preferably, in step (6), the filling amount is 0.2-0.4g / piece, and more preferably 0.3g / piece.

[0021] Application of a rapid screening method for heated cigarette tobacco raw materials in distinguishing the quality of different tobacco raw materials.

[0022] The above-described technical solution of the present invention has the following beneficial effects:

[0023] Since the preparation process of the cigarette core does not involve special instruments and equipment, it can be completed using conventional experimental equipment. Therefore, it is simple and easy to implement, provides a good smoking experience, has a short process flow, low production costs, does not require a large investment, and is suitable for laboratory sample preparation and sensory evaluation.

[0024] Instruction manual illustrations

[0025] Figure 1 The effect of different moisture contents on smoke generation.

[0026] Figure 2 The effect of different glycerol contents on the amount of smoke produced.

[0027] Figure 3 The effect of different filling amounts on smoke generation. Detailed Implementation

[0028] Various exemplary embodiments of the present invention will now be described in detail. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention.

[0029] Example 1

[0030] A method for rapid screening of heated cigarette tobacco leaves includes the following steps:

[0031] The first step is to grind the tobacco leaves to 120 mesh using a grinding mill;

[0032] The second step involves mixing the tobacco powder ground in the first step with glycerin, adhesive, and purified water in a specific ratio. The mixture contains 20% tobacco powder, 6% glycerin, 1% adhesive, and 73% water.

[0033] The third step is to mix the ingredients thoroughly using a mixer.

[0034] The fourth step involves directly coating the mixture obtained in the third step onto sulfuric acid paper, with a coating weight not exceeding 300 g / m². 2 .

[0035] Fifth step: Place the sulfuric acid paper coated with the mixture from the fourth step in an oven at 100°C and bake for 30 minutes to reduce its final moisture content to 11%.

[0036] The sixth step is to knead the dried mixture from the fifth step into pieces, prepare to heat the finished cigarette, remove the cigarette core from the smoking section and replace it with the mixture pieces, with a filling amount of 0.25g / cigarette (at this filling amount, the cigarette core is not easy to fall off and a suitable airflow channel is formed), thus completing the cigarette core assembly.

[0037] Step seven: Sensory evaluation can be conducted using the appropriate heating equipment. This includes, but is not limited to, heating devices such as Kungfu, IQOS, glo, ploom, lil, MC, MOK, and MR. Heating methods include circumferential heating, core heating, and air heating, but are not limited to these.

[0038] Evaluation of smoking effect: The smoke volume is large, the smoke is full, and the aroma characteristics are obvious, which can distinguish the quality of different tobacco raw materials.

[0039] Example 2

[0040] A method for rapid screening of heated cigarette tobacco leaves includes the following steps:

[0041] The first step is to grind the tobacco leaves to 100 mesh using a grinding mill;

[0042] The second step involves mixing the tobacco powder ground in the first step with glycerin, adhesive, and purified water in a specific ratio. The mixture contains 30% tobacco powder, 6% glycerin, 1% adhesive, and 63% water.

[0043] The third step is to mix all the raw material components from the second step evenly in a mixer.

[0044] The fourth step involves directly coating the mixture obtained in the third step onto sulfuric acid paper, with a coating weight not exceeding 300 g / m². 2 .

[0045] Fifth step: Place the sulfuric acid paper coated with the mixture from the fourth step in an oven at 150°C and bake for 15 minutes to reduce its final moisture content to 10%.

[0046] The sixth step is to knead the dried mixture from the fifth step into small pieces, prepare to heat the finished cigarette, remove the cigarette core from the smoking section and replace it with the mixture pieces, with a filling amount of 0.2g / cigarette (at this filling amount, the cigarette core is not easy to fall off and a suitable airflow channel is formed), thus completing the cigarette core assembly.

[0047] Step seven: Sensory evaluation can be conducted using the appropriate heating equipment. This includes, but is not limited to, heating devices such as Kungfu, IQOS, glo, ploom, lil, MC, MOK, and MR. Heating methods include circumferential heating, core heating, and air heating, but are not limited to these.

[0048] Evaluation of smoking effect: The smoke volume is large, the smoke is full, and the aroma characteristics are obvious, which can distinguish the quality of different tobacco raw materials.

[0049] Example 3

[0050] A method for rapid screening of heated cigarette tobacco leaves includes the following steps:

[0051] The first step is to grind the tobacco leaves to 120 mesh using a grinding mill;

[0052] The second step involves mixing the tobacco powder from the first step with glycerin, adhesive, and purified water in a specific ratio. The mixture should contain 60% tobacco powder, 20% glycerin, and 20% water.

[0053] The third step is to mix thoroughly, stirring and mixing all the raw material components from the second step until they are evenly combined.

[0054] The fourth step is to extrude the mixture obtained in the third step through a 1mm mesh, then roll it into a round shape, and finally form a cylindrical object with a length of 0-5mm.

[0055] Fifth step: Place the material formed in step four in an oven at 100℃ and bake for 30 minutes to reduce its final moisture content to 12%.

[0056] Step 6: Prepare the finished cigarette sticks for heating. Remove the cigarette core from the smoking section and replace it with the material dried in step 5. The filling amount is 0.3g / stick (at this filling amount, the cigarette core is not easy to fall off and a suitable airflow channel is formed), thus completing the cigarette core assembly.

[0057] Step seven: Sensory evaluation can be conducted using the appropriate heating equipment. This includes, but is not limited to, heating devices such as Kungfu, IQOS, glo, ploom, lil, MC, MOK, and MR. Heating methods include circumferential heating, core heating, and air heating, but are not limited to these.

[0058] Evaluation of smoking effect: The smoke volume is large, the smoke is full, and the aroma characteristics are obvious, which can distinguish the quality of different tobacco raw materials.

[0059] Since the preparation process of the cigarette core does not involve special instruments and equipment, it can be completed using conventional experimental equipment. Therefore, it is simple and easy to implement, provides a good smoking experience, has a short process flow, low production costs, does not require a large investment, and is suitable for laboratory sample preparation and sensory evaluation. The comparison results are detailed in Table 1.

[0060] Table 1 Comparison Results

[0061]

[0062] Example 4: Effects of glycerol content, moisture content, and filler amount on smoke generation

[0063] The effects of glycerol, moisture, and filler content on smoke production under different mass percentage conditions were studied to optimize the core formulation and filler content in Examples 1-3.

[0064] The study investigated the effects of 15%, 20%, 25%, and 40% glycerol content, 4%, 6%, 8%, 12%, and 17% water content, and 0.1, 0.15, 0.2, 0.25, and 0.3 g / piece filling amount on the smoke output of this patent.

[0065] The results showed that the best smoking effect was achieved when the moisture content was 6-10%, the glycerin content was 25-30%, and the filling amount was greater than 0.25g / stick. See Tables 2, 3 and 4 for details.

[0066] Table 2. Effects of different moisture contents on smoke output

[0067]

[0068] Table 3. Effects of different glycerol contents on smoke output.

[0069]

[0070] Table 4. Effect of different filling amounts on smoke generation

[0071]

[0072] Therefore, the best effect is achieved when the mixture filling scheme of this patent is 0.3g / vial, 8% moisture and 25% glycerin.

[0073] Samples were prepared using the following ratio: 62-67% smoke powder, 25% glycerin, 0-5% adhesive, and 8% water. The smoke output of the prepared samples was compared with that of the finished product. See Table 5 for details.

[0074] Table 5 Comparison of Smoke Emission between Samples and Finished Products

[0075]

[0076] Application Example 1: Comparison of Sensory Evaluation of Sample Preparation by the Method of This Patent with Laboratory Sample Preparation of Dry Reconstituted Tobacco Leaves. A rapid screening method for heated cigarette tobacco leaves includes the following steps:

[0077] The first step is to use a grinding mill to grind four types of tobacco leaves—Heilongjiang tobacco, Honghe tobacco, Brazilian tobacco, and Yunnan aromatic tobacco—to 120 mesh.

[0078] The second step is to mix the tobacco powder ground in the first step with glycerin, adhesive, and purified water according to the proportions specified in this application.

[0079] The third step is to mix thoroughly, stirring and mixing all the raw material components from the second step until they are evenly combined.

[0080] The fourth step is to extrude the mixture obtained in the third step through a 1mm mesh, then roll it into a round shape, and finally form a cylindrical object with a length of 0-5mm.

[0081] Fifth step: Place the material formed in step four in an oven at 100℃ and bake for 30 minutes to reduce its final moisture content to 8%.

[0082] Step 6: Prepare the finished cigarette sticks for heating. Remove the cigarette core from the smoking section and replace it with the material dried in step 5. The filling amount is 0.3g / stick (at this filling amount, the cigarette core is not easy to fall off and a suitable airflow channel is formed), thus completing the cigarette core assembly.

[0083] The seventh step involves using the Kungfu 2.0 heating device to compare and evaluate the sensory absorption of samples prepared by dry papermaking with four types of tobacco raw materials: Heilongjiang tobacco, Honghe tobacco, Brazilian tobacco, and Yunnan aromatic tobacco, all with the same glycerol content.

[0084] The sensory evaluation of heated non-combustible cigarettes was conducted by an expert evaluation panel according to the national standard GB5606.4-2005, which specifies the sensory technical requirements for cigarettes. The results of the aroma identification evaluation are shown in Table 6. The evaluation panel consisted of 7 members, and the scores were averaged out of 5 points. The comparative evaluation of the tobacco liquid characteristics is shown in Table 7. The evaluation panel also consisted of 7 experts, and the scores were averaged out of 10 points.

[0085] Table 6 Comparison and Evaluation of Fragrance Distinctiveness

[0086]

[0087] Table 7 Comparison and Evaluation of Flue Gas Characteristics

[0088]

[0089] Evaluation of smoking effect: The smoke volume is large, the smoke is full, and the tobacco aroma is obvious. It can distinguish the quality of different tobacco raw materials and can replace the experimental paper samples of dry papermaking method.

[0090] Although the present invention has been disclosed above with reference to embodiments, it is not intended to limit the present invention. Any person skilled in the art can make various different choices and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention is defined by the claims and their equivalents.

Claims

1. A method for rapid screening of heated cigarette tobacco raw materials, characterized in that, The following steps are involved: (1) Powdering of tobacco raw materials: Powder the tobacco raw materials to 80-120 mesh using a grinding mill; (2) Cigarette core formula: Mix the tobacco powder ground in step (1) with glycerin, adhesive and purified water in a certain proportion, wherein the tobacco powder content is 62-67%, the glycerin content is 25%, the adhesive content is 0-5% and the water content is 8%. (3) Mixing: Mix all the raw material components in step (2) evenly; (4) Puff forming: Select an appropriate forming method according to the puff formula; when the puff formula is semi-fluid or fluid, directly coat it onto sulfuric acid paper or waxed paper, with a coating area not exceeding 700g / m². 2 When the cigarette core formula is non-fluid, the mixed raw materials are squeezed through a 1mm mesh, then rolled into a round shape, and finally formed into a columnar material with a length of 0-5mm. (5) Heat treatment of the tobacco core: Place the molding mixture obtained in step (4) in an oven at 100-150℃ and bake for 15-30 minutes to make its final moisture content 10-12%; (6) Cigarette core assembly: Prepare a heated cigarette stick, take out the cigarette core of the smoking section, and then fill it with the molding mixture prepared in step (5) to complete the cigarette core assembly. (7) Sensory evaluation and differentiation: Sensory evaluation can be carried out with the matching heating equipment to differentiate the quality of different tobacco raw materials.

2. The rapid screening method for heated cigarette tobacco raw materials according to claim 1, characterized in that, In step (1), the tobacco raw material is pulverized to 100-120 mesh using a pulverizer.

3. The rapid screening method for heated cigarette tobacco raw materials according to claim 1, characterized in that, In step (4), when the cigarette core formulation is semi-fluid or fluid, it is directly coated onto sulfuric acid paper or waxed paper, with a coating area not exceeding 300g / m². 2 .

4. The rapid screening method for heated cigarette tobacco raw materials according to claim 1, characterized in that, In step (6), the filling amount is 0.2-0.4g / piece.

5. The application of the rapid screening method for heated cigarette tobacco raw materials according to any one of claims 1-4 in distinguishing the quality of different tobacco raw materials.

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