Cigarette paper and aerosol-generating product

Abstract

The invention relates to the technical field of cigarettes, and discloses cigarette paper and an aerosol generating matrix product. The cigarette paper is used for wrapping an aerosol generating substrate, accelerant particles are arranged on one side, in contact with the aerosol generating substrate, of the cigarette paper, and the accelerant particles comprise an SAPO 34 molecular sieve and a metal compound loaded on the SAPO 34 molecular sieve. The cigarette paper aerosol generating substrate can effectively reduce the smoke moisture content of a heated cigarette.

Description

Technical Field

[0001] The present invention relates to the technical field of cigarettes, and in particular to cigarette paper and an aerosol generating product. Background Art

[0002] In recent years, as the tobacco control situation has become increasingly severe and consumers' attention to health has gradually increased, new tobacco products have become more and more popular among the public. After rapid development and optimization in recent years, aerosol-generating products such as heated cigarettes have initially achieved a good smoking experience. Due to the special heating method of heated cigarettes, the tobacco material itself cannot release enough aerosols, and the amount of smoke is relatively small, so it is usually necessary to add an atomizer to supplement the smoke generated after heating. However, when the atomizer is exposed to the air, it absorbs moisture in the air, thereby increasing the water content of the heated cigarette, making the moisture content of the smoke in the first two puffs (especially the first puff) of the heated cigarette too high. The increase in heat capacity causes users to feel a burning sensation in their mouths when smoking heated cigarettes, and the user experience is not good.

[0003] The main solution at present is to increase the sealing of the cigarette box to prevent the heated cigarette from absorbing moisture in the air, or to reduce the amount of atomizer added to reduce the hygroscopicity of the heated cigarette. However, it has been found in practice that such treatment has little effect on reducing the temperature of the cigarette when smoking. Summary of the invention

[0004] The purpose of the present invention is to overcome the problem of burnt mouth when users smoke heated cigarettes in the prior art, and to provide a cigarette paper and an aerosol generating product, which can effectively reduce the moisture content of smoke from heated cigarettes, thereby effectively reducing the temperature at the mouth of the cigarette.

[0005] To achieve the above objectives, the first aspect of the present invention provides a cigarette paper for wrapping an aerosol generating substrate, wherein the side of the cigarette paper in contact with the aerosol generating substrate is provided with promoter particles, and the promoter particles include SAPO 34 molecular sieve and a metal compound loaded on the SAPO 34 molecular sieve.

[0006] Preferably, in the promoter particles, the content of the metal compound is 40-75 wt %.

[0007] Preferably, the metal compound is a metal oxide and / or a metal chloride.

[0008] More preferably, the metal oxide is titanium dioxide and / or magnesium oxide, and the metal chloride is calcium chloride and / or aluminum chloride.

[0009] More preferably, the metal compound is titanium dioxide and calcium chloride.

[0010] Preferably, in the promoter particles, the content of titanium dioxide is 18-32wt%, and the content of calcium chloride is 26-40wt%.

[0011] Preferably, the mass ratio of the titanium dioxide to the calcium chloride is 1:0.85-1.6.

[0012] Preferably, the promoter particles are adhered to the cigarette paper via an adhesive coating.

[0013] Further preferably, the adhesive coating contains an adhesive and an additive, and the additive is selected from at least one of propylene glycol, sorbitol and erythritol.

[0014] Preferably, in the adhesive coating, the content of the additive is 1-5 wt %.

[0015] Preferably, the sticky coating layer further contains an adhesive, and the content of the adhesive in the sticky coating layer is 95-99wt%.

[0016] Preferably, the adhesive is selected from at least one of sodium methylcellulose, guar gum, konjac gum, xanthan gum, linseed gum, sodium alginate, hydroxypropyl methylcellulose, sodium silicate, starch and polyvinyl alcohol.

[0017] Preferably, the thickness of the adhesive coating is 10-500 μm.

[0018] Preferably, the adhesive coating is formed with a concavo-convex structure.

[0019] Further preferably, the concave-convex structure is a mesh structure, a strip structure or a dot structure.

[0020] Preferably, relative to 1m 2 On the cigarette paper, the content of the promoter particles is 0.5-2.5g.

[0021] Preferably, the particle size of the promoter particles is less than or equal to 0.28 mm.

[0022] The second aspect of the present invention provides an aerosol production product, which includes a smoking section, a cooling section and a filtering section arranged in sequence, and the smoking section includes the cigarette paper described in the first aspect.

[0023] Through the above technical scheme, the cigarette paper provided by the present invention is used for wrapping the aerosol generating substrate, and promoter particles are arranged on the side of the cigarette paper in contact with the aerosol generating substrate, and the promoter particles include SAPO 34 molecular sieve and metal compounds loaded on the SAPO 34 molecular sieve, which can effectively reduce the moisture content of the smoke in the first puff of the heated cigarette, effectively avoid the generation of smoke burns, and at the same time increase the captured glycerol content. More importantly, the temperature and glycerol in the overall smoking process are more uniform, bringing a very stable and high-quality smoking experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a cross-sectional view of an aerosol generating article provided by one embodiment of the present invention;

[0025] Figure 2 is a schematic diagram of the structure of an accelerant on the side of a cigarette paper provided by an embodiment of the present invention;

[0026] Figure 3 Schematic diagram of the distribution of promoters on the surface of cigarette paper provided by one embodiment of the present invention.

[0027] Smoke-generating section, 110 ; support structure, 120 ; cooling structure, 130 ; filtering structure, 140 ; ​​cigarette paper, 150 ; semi-blocking section, 160 ; accelerant particle layer 111 . DETAILED DESCRIPTION

[0028] The endpoints and any values ​​of the ranges disclosed in this article are not limited to the precise ranges or values, and these ranges or values ​​should be understood to include values ​​close to these ranges or values. For numerical ranges, the endpoint values ​​of each range, the endpoint values ​​of each range and the individual point values, and the individual point values ​​can be combined with each other to obtain one or more new numerical ranges, which should be considered as specifically disclosed in this article.

[0029] A first aspect of the present invention provides a cigarette paper, which is used to wrap an aerosol generating substrate. The side of the cigarette paper in contact with the aerosol generating substrate is provided with promoter particles, and the promoter particles include SAPO 34 molecular sieve and a metal compound loaded on the SAPO 34 molecular sieve.

[0030] During the research process, the inventors found that the side of the cigarette paper provided by the present invention that contacts the aerosol generating substrate is provided with promoter particles, and the promoter particles include SAPO 34 molecular sieve and metal compounds loaded on the SAPO 34 molecular sieve, which can effectively reduce the temperature of the cigarette mouth when taking the first puff of cigarette after heating, effectively avoid the occurrence of burns in the mouth, and at the same time increase the captured glycerol content. More importantly, the temperature and glycerol of the overall smoking process are more uniform, bringing a very stable and high-quality smoking experience.

[0031] According to the present invention, the promoter particles can be prepared. Preferably, the preparation method of the promoter particles comprises: grinding SAPO 34 molecular sieve and metal compound in the presence of a solvent, and obtaining the promoter particles after the solvent evaporates.

[0032] Preferably, in the promoter particles, the content of the metal compound is 40-75wt%, which may be 40wt%, 45wt%, 50wt%, 55wt%, 60wt%, 65wt%, 70wt%, 75wt%, or any value in the range formed by any two of these values. Studies have found that controlling the metal compound in the promoter particles within the above range can further reduce the moisture content of the first puff of smoke after heating.

[0033] In order to further reduce the temperature of the cigarette mouth when the first puff of smoke is heated, preferably, the metal compound is a metal oxide and / or a metal chloride. In order to further reduce the moisture content of the first puff of smoke after heating, preferably, the metal oxide is titanium dioxide and / or magnesium oxide, and the metal chloride is calcium chloride and / or aluminum chloride.

[0034] Preferably, the metal compound is titanium dioxide and calcium chloride. Studies have found that SAPO 34 molecular sieve is loaded with titanium dioxide and calcium chloride at the same time. Through the interaction of titanium dioxide, calcium chloride and SAPO 34 molecular sieve, the moisture content of the first flue gas after heating can be further reduced. Considering that the moisture content of the first flue gas after heating can be further reduced, it is further preferred that in the promoter particles, the content of titanium dioxide is 18-32wt%, which can be 18wt%, 20wt%, 22wt%, 24wt%, 26wt%, 28wt%, 30wt%, 32wt%, or any value in the range formed by any two of these values; the content of calcium chloride is 26-40wt%, which can be 26wt%, 28wt%, 30wt%, 32wt%, 34wt%, 36wt%, 38wt%, 40wt%, or any value in the range formed by any two of these values.

[0035] Preferably, the mass ratio of the titanium dioxide to the calcium chloride is 1:0.85-1.6, which may be 1:0.85, 1:1, 1:1.15, 1:1.3, 1:1.45, 1:1.6, or any value within the range formed by these ratios. Controlling the mass ratio of titanium dioxide to calcium chloride within the above range can further enhance the interaction effect between the two, thereby further reducing the moisture content of the first puff of smoke after heating.

[0036] Preferably, the promoter particles are adhered to the cigarette paper via an adhesive coating, which can improve the bonding effect between the promoter particles and the cigarette paper.

[0037] Preferably, the adhesive coating contains an adhesive and an additive, and the additive is selected from at least one of glycerol, propylene glycol, sorbitol and erythritol. The addition of the above additives can further improve the interaction effect between the SAPO 34 molecular sieve and the metal compound, thereby further reducing the moisture content of the first puff of smoke after heating. In view of being able to further reduce the moisture content of the first puff of smoke after heating, it is further preferred that the additive is sorbitol and / or erythritol.

[0038] Preferably, in the adhesive coating, the content of the additive is 1-5 wt %.

[0039] Preferably, the sticky coating layer further contains an adhesive, and the content of the adhesive in the sticky coating layer is 95-99wt%.

[0040] Preferably, the adhesive is selected from at least one of sodium methylcellulose, guar gum, konjac gum, xanthan gum, linseed gum, sodium alginate, hydroxypropyl methylcellulose, sodium silicate, starch and polyvinyl alcohol.

[0041] Preferably, the thickness of the adhesive coating is 10-500 μm.

[0042] In order to further reduce the temperature of the cigarette mouth when taking the first puff of smoke after heating, preferably, the adhesive coating is formed with a concave-convex structure. In order to further reduce the moisture content of the first puff of smoke after heating, further preferably, the concave-convex structure is a mesh structure, a strip structure or a dot structure.

[0043] In order to further reduce the moisture content of the first flue gas after heating, preferably, relative to 1m 2On the cigarette paper, the content of the promoter particles is 0.5-2.5g, which can be 0.5g, 1g, 1.5g, 2g, 2.5g, or any value in the range formed by any two of these values. In order to further reduce the moisture content of the first puff of smoke after heating, it is further preferred that the particle size of the promoter particles is less than or equal to 0.28mm.

[0044] According to the present invention, the aerosol-generating substrate may be shredded tobacco or tobacco flakes.

[0045] The second invention of the present invention provides an aerosol production product, such as Figures 1 to 3 As shown, it comprises a smoking section 110, a cooling section 120 and a filtering section 140 arranged in sequence, and the smoking section comprises the cigarette 150 described in the first aspect above.

[0046] Preferably, a supporting section 130 is further provided between the smoking section 110 and the cooling section 120 .

[0047] Preferably, the tail end of the smoking section 110 is further provided with a semi-blocking portion 160 allowing air to pass through, and the semi-blocking portion 160 has a blocking effect on the aerosol generating substrate in the smoking section 110 .

[0048] Preferably, accelerant particles 151 are disposed on the cigarette paper 150 of the cigarette 110 .

[0049] According to the present invention, the cigarette paper 150 is used to wrap tobacco shreds or tobacco sheets as an aerosol generating substrate to form the smoking portion 110, and the accelerant particles 151 on the inner surface of the cigarette paper 150 may be in contact with the tobacco shreds or tobacco sheets.

[0050] The present invention will be described in detail below by way of examples. In the following examples, SAPO 34 molecular sieve 、 Titanium dioxide, calcium chloride, aluminum chloride, and magnesium oxide are the existing products in the market.

[0051] Preparation Example 1

[0052] 4 mg of SAPO 34 molecular sieve, 2.5 mg of titanium dioxide and 3.5 mg of calcium chloride were dispersed in 20 mL of ethanol and ground until the solvent was completely evaporated to obtain promoter particles-1.

[0053] Preparation Example 2

[0054] 4.4 mg of SAPO 34 molecular sieve, 3 mg of titanium dioxide and 2.6 mg of calcium chloride were dispersed in 20 mL of ethanol and ground until the solvent was completely evaporated to obtain promoter particles-2.

[0055] Preparation Example 3

[0056] 3.5 mg of SAPO 34 molecular sieve, 2.5 mg of titanium dioxide and 4 mg of calcium chloride were dispersed in 20 mL of ethanol and ground until the solvent was completely evaporated to obtain promoter particles-3.

[0057] Preparation Example 4

[0058] 4.2 mg of SAPO 34 molecular sieve, 3.2 mg of titanium dioxide and 2.6 mg of calcium chloride were dispersed in 20 mL of ethanol and ground until the solvent was completely evaporated to obtain promoter particles-4.

[0059] Preparation Example 5

[0060] 4.2 mg of SAPO 34 molecular sieve, 1.8 mg of titanium dioxide and 4 mg of calcium chloride were dispersed in 20 mL of ethanol and ground until the solvent was completely evaporated to obtain promoter particles-5.

[0061] Preparation Example 6

[0062] Promoter particles were prepared according to the method of Preparation Example 2, except that calcium chloride was replaced by silicon dioxide. The prepared promoter particles were recorded as Promoter Particles-6.

[0063] Preparation Example 7

[0064] Promoter particles were prepared according to the method of Preparation Example 3, except that titanium dioxide was replaced by calcium chloride. The prepared promoter particles were recorded as Promoter Particles-7.

[0065] Preparation Example 8

[0066] The promoter particles were prepared according to the method of Example 2, except that titanium dioxide was replaced by magnesium oxide, and calcium chloride was replaced by aluminum chloride.

[0067] Preparation Example 9

[0068] 4.4 mg of SAPO 34 molecular sieves, 3 mg of titanium dioxide, and 2.6 mg of calcium chloride were mixed to obtain a composition.

[0069] Test Example 1

[0070] The contents of the various components of the accelerator particles or compositions prepared above are shown in Table 1.

[0071] Table 1

[0072] Content of SAPO 34 molecular sieve / % Metal oxide content / % Metal chloride content / % Preparation Example 1 40 25 35 Preparation Example 2 44 30 26 Preparation Example 3 35 25 40 Preparation Example 4 42 32 26 Preparation Example 5 42 18 40 Preparation Example 6 44 30 26 Preparation Example 7 35 25 40 Preparation Example 8 44 30 26 Preparation Example 9 44 30 26

[0073] Example 1

[0074] (1) baking the tobacco leaf fragments for 3 hours, maintaining the baking temperature at 90±5° C., and crushing the tobacco leaves to a size of more than 200 meshes using a grinder to obtain tobacco raw material powder;

[0075] (2) Weigh 100 g of the tobacco raw material powder, put it into a beaker containing 50 g of water and stir it evenly, then add 15 g of a 20 wt % guar gum aqueous solution and continue to stir it evenly, then add 0.5 g of glycerol and stir it thoroughly to obtain a viscous coating containing tobacco material.

[0076] (3) The above-mentioned viscous coating containing tobacco material is evenly applied on the inner surface of the cigarette paper with a length of 22.0 mm and a width of 14.0 mm using a scraper, and the amount of application is controlled so that the tobacco content in the viscous coating is 2.0 g / m 2 .

[0077] (4) Press 0.5g / m on the above adhesive coating. 2 Sprinkle accelerator granules-1 evenly;

[0078] (5) The above product is placed in a dryer and dried at 100°C to reduce the moisture content to less than 12 wt%, and then 5 mg of burley tobacco is rolled into it.

[0079] Example 2

[0080] (1) baking the tobacco leaf fragments for 3 hours, maintaining the baking temperature at 90±5° C., and crushing the tobacco leaves to a size of more than 200 meshes using a grinder to obtain tobacco raw material powder;

[0081] (2) Weigh 100 g of the tobacco raw material powder, put it into a beaker containing 50 g of water and stir it evenly, then add 10 g of a 20 wt% sodium methylcellulose aqueous solution and continue to stir it evenly, then add 0.8 g of sorbitol and stir it thoroughly to obtain a viscous coating containing tobacco material.

[0082] (3) The above-mentioned viscous coating containing tobacco material is uniformly applied to the inner surface of the cigarette paper with a length of 22.0 mm and a width of 14.0 mm using a scraper, and the amount of coating is controlled so that the tobacco content in the viscous coating is 2.5 g / m 2 .

[0083] (4) Press 1.5g / m on the above adhesive coating. 2 Sprinkle accelerator granules-2 evenly;

[0084] (5) The above product was placed in a dryer and dried at 100°C until the moisture content was less than 12 wt%, and then 5 mg of burley tobacco was rolled into it.

[0085] Example 3

[0086] (1) baking the tobacco leaf fragments for 3 hours, maintaining the baking temperature at 90±5° C., and crushing the tobacco leaves to a size of more than 200 meshes using a grinder to obtain tobacco raw material powder;

[0087] (2) Weigh 100 g of the above tobacco raw material powder, put it into a beaker containing 50 g of water and stir it evenly, then add 10 g of a 10 wt% xanthan gum aqueous solution and continue to stir it evenly, then add 0.3 g of erythritol and stir it thoroughly to obtain a viscous coating containing tobacco material.

[0088] (3) The above-mentioned viscous coating containing tobacco material is uniformly applied to the inner surface of the cigarette paper with a length of 22.0 mm and a width of 14.0 mm using a scraper, and the amount of coating is controlled so that the tobacco content in the viscous coating is 1.5 g / m 2 .

[0089] (4) Press 2.5g / m on the above adhesive coating. 2 Sprinkle accelerator granules evenly -3;

[0090] (5) The above product was placed in a dryer and dried at 100°C until the moisture content was less than 12 wt%, and then 5 mg of burley tobacco was rolled into it.

[0091] Example 4

[0092] Cigarettes were prepared according to the method of Example 2, except that the promoter particles-2 were replaced by promoter particles-4.

[0093] Example 5

[0094] Cigarettes were prepared according to the method of Example 3, except that the promoter particles-3 were replaced by promoter particles-5.

[0095] Example 6

[0096] Cigarettes were prepared according to the method of Example 2, except that the promoter particles-2 were replaced by promoter particles-6.

[0097] Example 7

[0098] Cigarettes were prepared according to the method of Example 3, except that the promoter particles-3 were replaced by promoter particles-7.

[0099] Example 8

[0100] Cigarettes were prepared according to the method of Example 2, except that the promoter particles-2 were replaced by promoter particles-8.

[0101] Example 9

[0102] The cigarettes were prepared according to the method of Example 1, except that in step (4), the amount of promoter particles-1 was 0.2 g / m 2 .

[0103] Example 10

[0104] Cigarettes were prepared according to the method of Example 3, except that in step (4), the amount of promoter particles-1 was 3 g / m 2 .

[0105] Comparative Example 1

[0106] Cigarettes were prepared according to the method of Example 2, except that the promoter particles-2 were replaced by the composition prepared in Preparation Example 9.

[0107] Test Example 1

[0108] The instrument is a thermogravimetric-mass spectrometer (TG-MS) (NETZSCH STA 449F3 + QMS 403D, Germany). The setting parameters are: atmosphere: nitrogen; protective gas flow: 20mL / min; purge gas flow: 50mL / min; temperature: 40-390℃; heating rate: 20℃ / min. The experimental steps are as follows: grind the sample into powder, put the sample into the instrument, adjust the parameters, start the experiment and record the water ion flow intensity-temperature curve. The test data are shown in Tables 2 to 4.

[0109] Table 2

[0110]

[0111] Table 3

[0112]

[0113] Table 4

[0114]

[0115]

[0116] In the above, a represents the peak point in the free water evaporation interval; b represents the trough point at the junction of the free water evaporation interval and the cell water evaporation interval; c represents the peak point in the cell water evaporation interval; d represents the trough point at the junction of the cell water evaporation interval and the pyrolysis water evaporation interval; e represents the peak point in the pyrolysis water evaporation interval. T0 is the temperature value of the plant material at this point, T n is the temperature of the sample at that point, A0 is the ion current intensity of the plant material at that point, A n is the ion current intensity value of the sample at that point.

[0117] From the results in Tables 2 to 4, it can be seen that the water ion current intensity peak near 100°C (corresponding to point a0) is mainly caused by the volatilization of free water in the sample; the second water ion current intensity peak appears near 282°C (corresponding to point c0), and the third water ion current intensity peak appears at 341°C (corresponding to point e0). After the sample is mixed with the accelerator, the water ion current intensity signal intensity near 100°C, 282°C, and 341°C increases overall, which indicates that the reaction of the sample to produce water vapor is advanced, which can make the sample dehydrated in advance during the preheating stage, thereby reducing the amount of water released in the first puff after heating.

[0118] The preferred embodiments of the present invention are described in detail above, but the present invention is not limited thereto. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, including the combination of various technical features in any other suitable manner, and these simple modifications and combinations should also be regarded as the contents disclosed by the present invention and belong to the protection scope of the present invention.

Claims

1. A cigarette paper, characterized in that: Used to wrap an aerosol generating substrate, the side of the cigarette paper in contact with the aerosol generating substrate is provided with promoter particles, and the promoter particles include SAPO 34 molecular sieve and a metal compound loaded on the SAPO 34 molecular sieve.

2. The cigarette paper according to claim 1, characterized in that: In the promoter particles, the content of the metal compound is 40-75 wt %.

3. The cigarette paper according to claim 1, characterized in that: The metal compound is a metal oxide and / or a metal chloride; Preferably, the metal oxide is titanium dioxide and / or magnesium oxide, and the metal chloride is calcium chloride and / or aluminum chloride; Preferably, the metal compounds are titanium dioxide and calcium chloride; Preferably, in the promoter particles, the content of titanium dioxide is 18-32wt%, and the content of calcium chloride is 26-40wt%; Preferably, the mass ratio of the titanium dioxide to the calcium chloride is 1:0.85-1.

6.

4. The cigarette paper according to any one of claims 1 to 3, characterized in that: The promoter particles are adhered to the cigarette paper through the adhesive coating; Preferably, the adhesive coating contains an adhesive and an additive, and the additive is selected from at least one of glycerol, propylene glycol, sorbitol and erythritol.

5. The cigarette paper according to claim 4, characterized in that: In the adhesive coating, the content of the additive is 1-5wt%; Preferably, the sticky coating layer further contains an adhesive, and the content of the adhesive in the sticky coating layer is 95-99wt%.

6. The cigarette paper according to claim 4, characterized in that: The adhesive is selected from at least one of sodium methylcellulose, guar gum, konjac gum, xanthan gum, linseed gum, sodium alginate, hydroxypropyl methylcellulose, sodium silicate, starch and polyvinyl alcohol.

7. The cigarette paper according to claim 4, characterized in that: The thickness of the adhesive coating is 10-500 μm.

8. The cigarette paper according to claim 4, characterized in that: The adhesive coating is formed with a concavo-convex structure; Preferably, the concave-convex structure is a mesh structure, a strip structure or a dot structure.

9. The cigarette paper according to any one of claims 1 to 3, characterized in that: Relative to 1m 2 On the cigarette paper, the content of the promoter particles is 0.5-2.5g; Preferably, the particle size of the promoter particles is less than or equal to 0.28 mm.

10. An aerosol production product, characterized in that The invention comprises a smoking section (110), a cooling section (120) and a filtering section (140) which are arranged in sequence, wherein the smoking section (110) comprises the cigarette paper (150) according to any one of claims 1 to 9.

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