Tobacco sheet, preparation method thereof and heating cigarette

Abstract

The invention provides a preparation method of a tobacco sheet, which comprises the following steps: A) mixing a tobacco raw material with glycerol, and soaking to obtain a soaking solution; b) heating and liquefying the soaking solution to obtain an extracting solution; c) cooling the extracting solution to obtain pasty liquid; and D) mixing the tobacco powder, the pasty liquid, essence, sodium alginate, fibers and water to prepare the tobacco sheet. According to the preparation method of the heating cigarette, glycerol is used as a liquefying agent, wood fibers in tobacco leaves or tobacco waste are degraded to form liquid, meanwhile, polysaccharide, protein and the like can be degraded in a high-temperature state, a series of chemical reactions are carried out, aroma substances are generated, and the tobacco waste subjected to glycerol liquefaction treatment can be used for preparing the heating cigarette. And when being applied to the heated cigarettes, the cigarette heating agent can remove the water-stuffy smell of the heated cigarettes during smoking and improve the aroma richness of the heated cigarettes.

Description

Technical Field

[0001] The invention relates to the technical field of tobacco, and in particular to a tobacco sheet and a preparation method thereof and a heated cigarette. Background Art

[0002] Due to the characteristic of heated cigarettes that they heat without burning, the cracking reaction of tobacco when heated is relatively simple, and the release of aroma components is limited. Compared with traditional cigarettes, new cigarettes have a heavier "watery" smell and obviously lack "smoke flavor" when smoked. How to cover up the "watery" smell and make up for the "smoke flavor" of heated cigarettes is an important research direction for improving the quality of heated cigarettes.

[0003] Liquefaction technology is currently a hot topic in the field of comprehensive utilization of biomass materials. It uses organic solvents such as polyols to convert insoluble and refractory wood biomaterials into flowable and reactive liquid substances. Glycerin is a commonly used atomizer for heated cigarettes and is also a polyol. It can liquefy the wood cellulose in tobacco waste and degrade the wood fibers in tobacco leaves and tobacco waste to form liquids. At the same time, it can degrade polysaccharides, proteins, etc. at high temperatures and undergo a series of chemical reactions to produce aroma substances. Tobacco waste treated with glycerol at high temperatures is rich in aroma substances. When used in heated cigarettes, it does not require the first step of heating, dehydration and cracking when smoking, thereby achieving the effect of covering up the "watery" smell when smoking heated cigarettes.

[0004] Therefore, it is very necessary to provide a heated cigarette that can cover up the "water stuffy" smell and increase the effect of "smoke taste" similar to traditional cigarettes. Summary of the invention

[0005] In view of this, the technical problem to be solved by the present invention is to provide a tobacco cigarette. The present invention provides a method for preparing a heated cigarette, using glycerin as a liquefier to degrade wood fibers in tobacco leaves or tobacco waste to form a liquid. At the same time, polysaccharides, proteins, etc. can be degraded by high temperature, and a series of chemical reactions are carried out to produce aroma substances. The aroma substances produced by high temperature in the tobacco waste after glycerin liquefaction treatment can cover up the "watery" smell and increase the "smoke taste" effect similar to traditional cigarettes, thereby improving the sensory quality of heated cigarettes.

[0006] The present invention provides a method for preparing a tobacco sheet, comprising:

[0007] A) taking tobacco raw material and glycerine and mixing, soaking, and obtaining soaking liquid;

[0008] B) heating the soaking liquid to liquefy it and obtain an extract;

[0009] C) cooling the extract to obtain a paste-like liquid;

[0010] D) mixing tobacco powder, paste liquid, essence, sodium alginate, fiber and water to prepare tobacco sheets.

[0011] Preferably, the tobacco raw material includes tobacco leaves or tobacco waste.

[0012] Preferably, the mass ratio of the tobacco raw material to glycerol is 1:10 to 1:20.

[0013] Preferably, the soaking time in step A) is 12 to 24 hours.

[0014] Preferably, the temperature of the liquefaction reaction in step B) is 150-250° C., and the reaction time is 5-10 h; stirring is continued during the liquefaction process, and the stirring speed is 60-300 rpm / min.

[0015] Preferably, in step D), the mass ratio of the tobacco powder, the paste liquid, the flavor, the sodium alginate, the fiber and the water is 100:(20-30):(1-4):(2-4):(1.5-2.5):(25-35).

[0016] Preferably, the method for preparing the tobacco sheet in step D) comprises a roller pressing method or a thick slurry method.

[0017] The present invention provides a tobacco sheet prepared by the preparation method described in any one of the above technical solutions.

[0018] The present invention provides a heated cigarette, comprising the tobacco sheet described in the above technical solution.

[0019] The present invention provides a method for preparing a heated cigarette, which is obtained by rolling the tobacco sheets described in the above technical solution.

[0020] Compared with the prior art, the present invention provides a method for preparing tobacco flakes, comprising: A) mixing tobacco raw materials and glycerin, soaking, and obtaining an soaking liquid; B) heating the soaking liquid for liquefaction reaction, and obtaining an extract; C) cooling the extract to obtain a paste liquid; D) mixing tobacco powder, paste liquid, flavor, sodium alginate, fiber and water to prepare tobacco flakes. The present invention uses glycerin as a medium to process tobacco leaves or tobacco waste at high temperature, and the obtained mixture is used as an atomizer in heated cigarettes, which can remove the "watery" smell of heated cigarettes and improve the richness of the aroma of heated cigarettes. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is the GC / MS spectrum of tobacco factory materials after processing. DETAILED DESCRIPTION

[0022] The present invention provides a tobacco sheet and a method for preparing the same, and a heated cigarette. Those skilled in the art can refer to the contents of this article and appropriately improve the process parameters to achieve the same. It should be particularly noted that all similar substitutions and modifications are obvious to those skilled in the art, and they all fall within the scope of protection of the present invention. The methods and applications of the present invention have been described through preferred embodiments, and relevant personnel can obviously modify or appropriately change and combine the methods and applications of this article without departing from the content, spirit and scope of the present invention to implement and apply the technology of the present invention.

[0023] In this application, the term "and / or" describes the association relationship of associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. A and B can be singular or plural.

[0024] The present invention provides a method for treating tobacco leaves and tobacco waste using glycerol liquefaction technology and an application of the method in heated cigarettes. Tobacco waste is treated with glycerol as a liquefier to degrade wood fibers in tobacco leaves and tobacco waste to form liquid. At the same time, polysaccharides, proteins, etc. can be degraded in a high-temperature state, and a series of chemical reactions are carried out to produce aroma substances. The tobacco waste treated with glycerol at high temperature is rich in aroma substances. When used in heated cigarettes, the "watery" smell of heated cigarettes can be removed and the richness of the aroma of heated cigarettes can be improved.

[0025] The present invention provides a method for preparing a tobacco sheet, comprising:

[0026] A) taking tobacco raw material and glycerine and mixing, soaking, and obtaining soaking liquid;

[0027] B) heating the soaking liquid to liquefy it and obtain an extract;

[0028] C) cooling the extract to obtain a paste-like liquid;

[0029] D) mixing tobacco powder, paste liquid, essence, sodium alginate, fiber and water to prepare tobacco sheets.

[0030] The preparation method of the tobacco sheet provided by the invention comprises the following steps: firstly mixing tobacco raw materials and glycerin, and soaking them to obtain soaking liquid.

[0031] The tobacco raw material of the present invention includes tobacco leaves or tobacco waste.

[0032] According to the present invention, the mass ratio of the tobacco raw material to glycerol is 1:10 to 1:20, specifically, 1:10, 1:11, 1:12, 1:13, 1:14, 1:15, 1:16, 1:17, 1:18, 1:19, 1:20, or a range between any two of the above.

[0033] In some embodiments of the present invention, the above tobacco raw materials are specifically flue-cured tobacco leaves, burley tobacco leaves, waste tobacco leaves or tobacco factory materials.

[0034] After mixing, stir evenly, and then soak. The soaking time is 12 to 24 hours; specifically, it can be 12 hours, 13 hours, 14 hours, 15 hours, 16 hours, 17 hours, 18 hours, 19 hours, 20 hours, 21 hours, 22 hours, 23 hours or 24 hours; or a range between any two of the above.

[0035] The soaking solution is heated to react to obtain an extract.

[0036] According to the present invention, the temperature of the liquefaction reaction is 150°C to 250°C, and the reaction time is 5 to 10 hours.

[0037] The liquefaction process is continuously stirred, and the stirring speed is 60-300 rpm / min; specifically, it can be 60 rpm / min, 80 rpm / min, 100 rpm / min, 150 rpm / min, 200 rpm / min, 250 rpm / min, 300 rpm / min; or any range between the above two values.

[0038] The reaction temperature may specifically be 150°C, 160°C, 170°C, 180°C, 190°C, 200°C, 210°C, 220°C, 230°C, 240°C, 250°C, or a range between any two of the above.

[0039] The reaction time is specifically 5h, 6h, 7h, 8h, 9h, 10h; or a range value between any two of the above.

[0040] The extract is cooled to obtain a paste-like liquid. The present invention does not limit the specific cooling method, and normal temperature cooling well known to those skilled in the art can be used.

[0041] The tobacco powder, paste liquid, flavor, sodium alginate, fiber and water are mixed to prepare tobacco sheets.

[0042] According to the present invention, the mass ratio of the tobacco powder, the paste liquid, the flavor, the sodium alginate, the fiber and the water is 100:(20-30):(1-4):(2-4):(1.5-2.5):(25-35).

[0043] In some embodiments of the present invention, the mass ratio of the tobacco powder, the paste liquid, the flavor, the sodium alginate, the fiber and the water is 100:20:1:2:1.5:30;

[0044] In some embodiments of the present invention, the mass ratio of the tobacco powder, the paste liquid, the flavor, the sodium alginate, the fiber and the water is 100:20:1:3:1.5:25;

[0045] In some embodiments of the present invention, the mass ratio of the tobacco powder, the paste liquid, the flavor, the sodium alginate, the fiber and the water is 100:30:4:4:2.5:30;

[0046] In some embodiments of the present invention, the mass ratio of the tobacco powder, the paste liquid, the flavor, the sodium alginate, the fiber and the water is 100:20:3:3:2:35;

[0047] The method for preparing tobacco sheets of the present invention includes a roller pressing method or a thick slurry method.

[0048] The present invention does not limit the specific operation of the roller pressing method or the thick slurry method, which is well known to those skilled in the art.

[0049] The present invention provides a tobacco sheet prepared by the preparation method described in any one of the above technical solutions.

[0050] The present invention has clearly described the above preparation method, which will not be repeated here.

[0051] The present invention provides a heated cigarette, comprising the tobacco sheet described in the above technical solution.

[0052] The present invention provides a method for preparing a heated cigarette, which is obtained by rolling the tobacco sheets described in the above technical solution.

[0053] The present invention does not limit the specific operation of rolling, which is well known to those skilled in the art.

[0054] The present invention provides a method for preparing tobacco flakes, comprising: A) mixing tobacco raw materials and glycerol, soaking, and obtaining soaking liquid; B) heating the soaking liquid for liquefaction reaction, and obtaining an extract; C) cooling the extract to obtain a paste liquid; D) mixing tobacco powder, paste liquid, flavor, sodium alginate, fiber and water to prepare tobacco flakes. The present invention uses glycerol as a medium to process tobacco leaves or tobacco waste at high temperature, and the obtained mixture is used as an atomizer in heated cigarettes, which can remove the "watery" smell of heated cigarettes and improve the richness of the aroma of heated cigarettes.

[0055] It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution, some or all of the steps can be executed in parallel or sequentially, and the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0056] The numerical ranges and parameters involved in the present invention have presented the relevant numerical values ​​in the specific embodiments as accurately as possible. However, any numerical value essentially inevitably contains standard deviations due to individual testing methods. Therefore, unless otherwise explicitly stated, it should be understood that all numerical ranges or specific data used in this disclosure may have certain reasonable deviations within a certain range, for example: within 1% or 0.5%.

[0057] Some cases are recorded in the embodiments and comparative examples of the present invention, wherein the embodiments show certain implementation modes of the present invention. However, this does not mean that the effects of the present invention can only be achieved in these cases.

[0058] In order to further illustrate the present invention, a tobacco sheet and a preparation method thereof and a heated cigarette provided by the present invention are described in detail below in conjunction with embodiments.

[0059] Example 1

[0060] (1) Take 50 g of flue-cured tobacco leaves, add 500 g of glycerol, stir evenly, and soak for 12 h;

[0061] (2) reacting the soaking solution in step (1) at 150° C. for 5 h;

[0062] (3) cooling the extract obtained in step (2) and stirring it into a paste-like liquid;

[0063] (4) Take 50 g of tobacco powder, add 10 g of the paste liquid of step (3), 0.5 g of flavor, 1 g of sodium alginate, 0.75 g of fiber and 15 g of water, prepare tobacco sheets by roller pressing, and roll them into heated cigarettes.

[0064] Example 2

[0065] (1) Take 50 g of burley tobacco leaves, add 750 g of glycerol, stir evenly, and soak for 12 h;

[0066] (2) reacting the soaking solution in step (1) at 150° C. for 5 h;

[0067] (3) cooling the extract obtained in step (2) and stirring it into a paste-like liquid;

[0068] (4) Take 50 g of tobacco powder, add 10 g of the paste liquid of step (3), 0.5 g of flavor, 1.5 g of sodium alginate, 0.75 g of fiber and 12.5 g of water, prepare tobacco sheets by roller pressing, and roll them into heated cigarettes.

[0069] Example 3

[0070] (1) Take 50g of waste tobacco leaves, add 750g of glycerin, stir evenly, and soak for 24h;

[0071] (2) reacting the soaking solution in step (1) at 200° C. for 6 hours;

[0072] (3) cooling the extract obtained in step (2) and stirring it into a paste-like liquid;

[0073] (4) Take 50 g of tobacco powder, add 15 g of the paste liquid of step (3), 2 g of flavor, 2 g of sodium alginate, 1.25 g of fiber and 15 g of water, prepare tobacco sheets by thick slurry method, and roll them into heated cigarettes.

[0074] Example 4

[0075] (1) Take 50g of tobacco factory material, add 1000g of glycerin, stir evenly, and soak for 12h;

[0076] (2) reacting the soaking solution in step (1) at 250° C. for 10 h;

[0077] (3) cooling the extract obtained in step (2) and stirring it into a paste-like liquid;

[0078] (4) Take 50 g of tobacco powder, add 10 g of the paste liquid of step (3), 1.5 g of flavor, 1.5 g of sodium alginate, 1 g of fiber and 17.5 g of water, prepare tobacco sheets by roller pressing, and roll them into heated cigarettes.

[0079] Comparative Example 1 Water Extraction

[0080] Add 500g of water to 50g of tobacco powder, reflux and extract for 2h, and concentrate into an extract.

[0081] Comparative Example 2 Alcohol Extraction

[0082] Add 500g of alcohol to 50g of tobacco powder, reflux and extract for 2h, and concentrate into an extract.

[0083] Verification Example 1

[0084] The present invention uses glycerol liquefaction technology to process tobacco leaves or tobacco waste, and the obtained extract is used in heated cigarettes. The sensory effects of tobacco extracts prepared by water extraction, alcohol extraction and glycerol extraction are analyzed (see Table 1).

[0085] Table 1 Sensory effects of tobacco extracts prepared by different extraction methods in heated cigarettes

[0086]

[0087] The invention uses glycerin to process tobacco leaves or tobacco waste at high temperature, and the obtained extract is used in heated cigarettes, which has the effects of increasing the strength, covering up the "watery" smell and increasing the "smoke taste" similar to traditional cigarettes.

[0088] Verification Example 2

[0089] The present invention adopts the method for treating tobacco leaves and tobacco waste by glycerol liquefaction technology and its application in heating cigarettes, analyzes its aroma components, and takes tobacco factory materials as an example to analyze the aroma components of the reaction system after the tobacco factory materials are treated by glycerol liquefaction technology. The results are as follows Figure 1 As shown in Table 2; Figure 1 This is the GC / MS spectrum of tobacco factory materials after processing.

[0090] Table 2 Analysis of aroma components of tobacco factory materials after glycerol liquefaction technology treatment

[0091]

[0092]

[0093] The present invention adopts glycerol liquefaction technology to process tobacco leaves and tobacco waste. After the treatment, a total of 34 aroma substances are identified in the tobacco waste, including 2,4-dimethylheptane, cyclooctatetraene, 1,3-propylene glycol diacetate, etc., which are used in heated cigarettes to cover up the "watery" smell.

[0094] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A method for preparing tobacco sheets, characterized in that: include: A) taking tobacco raw material and glycerin to mix, soaking, and obtaining soaking liquid; B) heating the soaking liquid to liquefy it and obtain an extract; C) cooling the extract to obtain a paste-like liquid; D) mixing tobacco powder, paste liquid, essence, sodium alginate, fiber and water to prepare tobacco sheets.

2. The preparation method according to claim 1, characterized in that: The tobacco raw material includes tobacco leaves or tobacco waste.

3. The preparation method according to claim 1, characterized in that: The mass ratio of the tobacco raw material to glycerin is 1:10 to 1:

20.

4. The preparation method according to claim 1, characterized in that: The soaking time in step A) is 12 to 24 hours.

5. The preparation method according to claim 1, characterized in that: Step B) The temperature of the liquefaction reaction is 150-250° C., and the reaction time is 5-10 hours; stirring is continued during the liquefaction process, and the stirring speed is 60-300 rpm / min.

6. The preparation method according to claim 1, characterized in that: Step D) The mass ratio of the tobacco powder, paste liquid, flavor, sodium alginate, fiber and water is 100:(20-30):(1-4):(2-4):(1.5-2.5):(25-35).

7. The preparation method according to claim 1, characterized in that: Step D) The method for preparing the tobacco sheet includes a roller pressing method or a thick slurry method.

8. A tobacco sheet, characterized in that: The compound is prepared by the preparation method according to any one of claims 1 to 7.

9. A heated cigarette, characterized in that: Comprising the tobacco sheet as claimed in claim 8.

10. A method for preparing a heated cigarette, characterized in that: The tobacco sheet is rolled from the tobacco sheet according to claim 8.

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