Atomizer in heat-not-burn cigarette and preparation method and application thereof

Abstract

The present invention provides an atomizer in a heat-not-burn cigarette and a preparation method and application thereof. The atomizer comprises the following raw materials, by weight: 10 to 40 parts of a polyol, 10 to 20 parts of a main molecule, and 2 to 8 parts of a catalyst; the polyol is selected from propylene glycol and / or glycerol; the main molecule is selected from one or more of α-cyclodextrin, β-cyclodextrin, γ-cyclodextrin, calix[4]arene, calix[5]arene, calix[6]arene and calix[8]arene; the catalyst comprises an ionic liquid, etc. The present invention adopts the main molecule of the above type, and forms a spherical hollow macromolecule through a molecular chain formed by a coupling reaction with the polyol, and wraps the solid powder atomizer of the polyol preparation process, so that the polyol is embedded in the molecule, and is used in the heat-not-burn cigarette, which can reduce the amount of polyol added, and can also increase the amount of cigarette smoke, so that the cigarette smoke is released smoothly, the smoke moistness is increased, and the sensory quality of the product is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of atomizers, and in particular relates to an atomizer in a heat-not-burn cigarette, and a preparation method and application thereof. Background Art

[0002] As international and domestic tobacco control measures become increasingly stringent, and people's awareness of their own health and environmental protection continues to improve, traditional tobacco has begun to transform and develop towards medium-thin, low-tar, and low-harm cigarettes. In this environment, some new tobacco products have flourished. Among them, heat-not-burn cigarettes, as a new tobacco product that is closest to traditional cigarettes, are very popular among consumers.

[0003] Heat-not-burn tobacco is produced by heating shredded tobacco or thin sheets through external heating devices. The heating temperature is mostly between 300℃ and 350℃. The tobacco material and atomizer generate an aerosol containing nicotine and other flavor components in a low-temperature non-combustion state. The ambient temperature of the tobacco material is much lower than that of traditional cigarettes. There is no open flame or ash during the smoking process, making it an environmentally friendly cigarette. However, due to the limited heating temperature, the heated tobacco cannot be fully burned, and the amount of smoke generated is insufficient, which makes the consumer's smoking experience lacking. Therefore, how to overcome the shortcomings of the existing technology and increase the smoke output of heat-not-burn cigarettes is a problem that needs to be solved urgently. Summary of the invention

[0004] In view of this, an object of the present invention is to provide an atomizer in a heat-not-burn cigarette and a preparation method thereof. The atomizer is used in the heat-not-burn cigarette and can reduce the amount of glycerol added.

[0005] The present invention provides an atomizer for a heat-not-burn cigarette, which comprises the following raw materials in parts by mass:

[0006] 10-40 parts of polyol, 10-20 parts of main molecule, 2-8 parts of catalyst;

[0007] The polyol is selected from propylene glycol and / or glycerol;

[0008] The host molecule is selected from one or more of α-cyclodextrin, β-cyclodextrin, γ-cyclodextrin, calix[4]arene, calix[5]arene, calix[6]arene and calix[8]arene;

[0009] The catalyst is selected from one or more of 1-(butyl-4-sulfonic acid)-3-methylimidazolium trifluoromethanesulfonate ionic liquid, activated alumina, zeolite molecular sieve, macroporous strongly acidic ion exchange resin and heteropoly acid.

[0010] The present invention provides a method for preparing an atomizer in a heat-not-burn cigarette according to the above technical solution, comprising the following method:

[0011] The polyol and the main molecule are mixed, and an etherification reaction is carried out in the presence of a catalyst to obtain an atomizer.

[0012] The present application uses 1-(butyl-4-sulfonic acid group)-3-methylimidazolium trifluoromethanesulfonate ionic liquid and the like as a catalyst to prepare a polyol-based molecular cage atomizer through an etherification reaction.

[0013] In the present invention, the temperature of the etherification reaction is 150-170° C., and the time of the etherification reaction is 6-9 hours.

[0014] In the present invention, after the etherification reaction is completed, the following steps are further included:

[0015] The etherification reaction product is cooled, extracted, dried, extracted again, and dried again to obtain an atomizing agent.

[0016] The extraction uses ethyl acetate; the re-extraction uses n-butanol.

[0017] The present invention provides a heat-not-burn cigarette, which comprises, by mass fraction, 1-6% of atomizer, 2-7% of glycerol, and 92% of tobacco shreds or sheets;

[0018] The atomizer is the atomizer in the heat-not-burn cigarette described in the above technical solution or the atomizer in the heat-not-burn cigarette prepared by the preparation method described in the above technical solution.

[0019] The heat-not-burn cigarette is preferably prepared according to the following method: 1-6% of atomizer and 2-7% of glycerol are mixed, and the mixture is sprayed on tobacco shreds or sheets.

[0020] The present invention provides an atomizer for a heat-not-burn cigarette, which comprises the following raw materials, measured by weight: 10 to 40 parts of a polyol, 10 to 20 parts of a main molecule, and 2 to 8 parts of a catalyst; the polyol is selected from propylene glycol and / or glycerol; the main molecule is selected from one or more of α-cyclodextrin, β-cyclodextrin, γ-cyclodextrin, calix[4]arene, calix[5]arene, calix[6]arene and calix[8]arene; the catalyst is selected from one or more of 1-(butyl-4-sulfonic acid)-3-methylimidazolium trifluoromethylsulfonate ionic liquid, activated alumina, zeolite molecular sieve, macroporous strongly acidic ion exchange resin and heteropoly acid. The present invention adopts the above-mentioned type of main molecules, and forms spherical hollow macromolecules through molecular chains formed by coupling reaction with polyols, and wraps the solid powder atomizer of the polyol preparation process, so that the polyol is embedded in the interior of the molecule, which is used in heat-not-burn cigarettes, can reduce the addition amount of polyols, and can also increase the amount of cigarette smoke, so that the cigarette smoke is released smoothly, the smoke moistness is increased, and the sensory quality of the product is improved. DETAILED DESCRIPTION

[0021] In order to further illustrate the present invention, an atomizer in a heat-not-burn cigarette provided by the present invention, a preparation method thereof and an application thereof are described in detail below in conjunction with embodiments, but they should not be construed as limiting the scope of protection of the present invention.

[0022] Examples 1 to 3

[0023] According to Table 1, weigh the polyol and the main molecule, and 5 parts of 1-(butyl-4-sulfonic acid)-3-methylimidazolium trifluoromethanesulfonate ionic liquid, and add them to a 100mL reactor. After sealing the reactor, replace the air in the reactor with nitrogen 3 times, and then heat it to 160°C and keep it for 8 hours under stirring. After the reaction is completed, cool it to room temperature in an ice-water bath, extract the reaction solution with ethyl acetate or other extractants 3 to 5 times (until the extractant is colorless), dry it at 80°C for 4 hours, and finally extract it with n-butanol 3 to 5 times, and dry it at 120°C overnight to obtain an atomizer powder.

[0024] Table 1 Raw material ratios of Examples 1 to 3

[0025] Serial number Propylene glycol / part Glycerol / part α-Cyclodextrin / portion β-cyclodextrin / portion γ-cyclodextrin / portion Example 1 80 10 Example 2 80 20 Example 3 80 30

[0026] Embodiments 4 to 7

[0027] According to Table 2, weigh the polyol and the main molecule, and 5 parts of 1-(butyl-4-sulfonic acid)-3-methylimidazolium trifluoromethanesulfonate ionic liquid, and add them to a 100mL reactor. After sealing the reactor, replace the air in the reactor with nitrogen 3 times, and then heat it to 160°C and maintain it for 8 hours under stirring. After the reaction is completed, cool it to room temperature in an ice-water bath, extract the reaction solution with ethyl acetate or other extractants 3 to 5 times (until the extractant is colorless), dry it at 80°C for 4 hours, and finally extract it with n-butanol 3 to 5 times, and dry it at 120°C overnight to obtain an atomizer powder.

[0028] Table 2 Raw material ratios of Examples 4 to 7

[0029]

[0030] Example 8

[0031] The atomizers prepared in Examples 1 to 7 were mixed with glycerol and tobacco in the proportions shown in Table 3 to obtain a heat-not-burn cigarette;

[0032] Table 3 Ratio of raw materials for heat-not-burn cigarettes

[0033] Serial number Atomizer / % Glycerol / % cut tobacco / % 1 2 6 92 2 3 5 92 3 4 4 92 4 5 3 92 5 6 2 92

[0034] The experiment found that when the proportion of atomizer added was greater than 4%, the smoke effect was significantly enhanced, and the amount of smoke was positively correlated with the proportion of atomizer added.

[0035] The present invention uses multiple sensory evaluation personnel to conduct sensory evaluation on the above-mentioned different atomizers and cigarettes with different addition ratios to examine the sensory quality and physical and chemical effects of the atomizers. The sensory quality score is 0-10 points based on the smoke volume. The higher the score, the more obvious the smoke effect of the atomizer during the smoking process. The sensory evaluation results are shown in Table 4:

[0036] Table 4 Sensory evaluation results of cigarettes with different atomizers

[0037]

[0038] It can be seen from the above embodiments that the present invention provides an atomizer in a heat-not-burn cigarette, which comprises the following raw materials, measured by mass: 10 to 40 parts of a polyol, 10 to 20 parts of a main molecule, and 2 to 8 parts of a catalyst; the polyol is selected from propylene glycol and / or glycerol; the main molecule is selected from one or more of α-cyclodextrin, β-cyclodextrin, γ-cyclodextrin, calix[4]arene, calix[5]arene, calix[6]arene and calix[8]arene; the catalyst is selected from one or more of 1-(butyl-4-sulfonic acid)-3-methylimidazolium trifluoromethanesulfonate ionic liquid, activated alumina, zeolite molecular sieve, macroporous strongly acidic ion exchange resin and heteropolyacid. The present invention adopts the above-mentioned type of main molecules, and forms spherical hollow macromolecules through molecular chains formed by coupling reaction with polyols, and wraps the solid powder atomizer of the polyol preparation process, so that the polyol is embedded in the interior of the molecule, which is used in heat-not-burn cigarettes, can reduce the addition amount of polyols, and can also increase the amount of cigarette smoke, so that the cigarette smoke is released smoothly, the smoke moistness is increased, and the sensory quality of the product is improved.

[0039] 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. An atomizer for a heat-not-burn cigarette, comprising the following raw materials in parts by mass: 10-40 parts of polyol, 10-20 parts of main molecule, 2-8 parts of catalyst; The polyol is selected from propylene glycol and / or glycerol; The host molecule is selected from one or more of α-cyclodextrin, β-cyclodextrin, γ-cyclodextrin, calix[4]arene, calix[5]arene, calix[6]arene and calix[8]arene; The catalyst is selected from one or more of 1-(butyl-4-sulfonic acid)-3-methylimidazolium trifluoromethanesulfonate ionic liquid, activated alumina, zeolite molecular sieve, macroporous strongly acidic ion exchange resin and heteropoly acid; The method for preparing the atomizer in the heat-not-burn cigarette comprises the following method: The polyol and the main molecule are mixed, and an etherification reaction is carried out in the presence of a catalyst, and the etherification reaction product is cooled, extracted, dried, extracted again, and dried again to obtain an atomizer; The temperature of the etherification reaction is 150-170° C., and the time of the etherification reaction is 6-9 hours.

2. The atomizer in the heat-not-burn cigarette according to claim 1, characterized in that: The extraction adopts ethyl acetate; The re-extraction uses n-butanol.

3. A heat-not-burn cigarette, comprising, by mass fraction, 1-6% atomizer, 2-7% glycerol, and 92% tobacco shreds or flakes; The atomizer is the atomizer in the heat-not-burn cigarette according to any one of claims 1 to 2.

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