Paper material, preparation method thereof and heating non-combustion cigarette

Abstract

The invention discloses a paper material, a preparation method thereof and a heating non-combustion cigarette. The paper material comprises cellulose paper and an isolation coating, and at least one surface of the cellulose paper is coated with the isolation coating; the isolation coating comprises the following components: wax, polysaccharide and polyethylene glycol, and the weight part ratio of the wax to the polysaccharide to the polyethylene glycol is (5-15): (1-25): (1-10). The paper material can effectively improve the miscellaneous smell of the heated non-combustible cigarette in the smoking process, and therefore the use experience feeling of consumers can be improved.

Description

Technical Field

[0001] The present invention generally relates to the technical field of smoking articles, and in particular to a paper material and a preparation method thereof, and a heat-not-burn cigarette. Background Art

[0002] Heat-not-burn cigarettes are a type of tobacco that is heated by an external heat source. The tobacco product reaches an atomization temperature at 250°C to 350°C, providing consumers with the feeling of smoking a cigarette. Traditional cigarettes are burned and cracked at high temperatures, which induces a series of uncontrollable physical and chemical changes, so the harmful gas components in tobacco are difficult to effectively control. In comparison, heat-not-burn cigarettes are heated at low temperatures rather than burned. They are heated at a set temperature, and the heating process is relatively controllable, avoiding uncontrollable reactions, and the harmful substances in tobacco can be greatly reduced.

[0003] Cigarette paper is usually formed by adding fillers or other substances to fiber pulp. The existing technology has various innovations in cigarette paper tubes. Some use a composite paper tape with a transparent heat-absorbing paper tape as the inner layer and an acetate paper tape as the outer layer to achieve cooling and filtering effects; some prevent harmful liquids from entering the filter tip by changing the inner surface structure of the hollow cardboard tube; and some have a tube wall made of a grooved corrugated layer with flavoring or smoking substances, which has a strong support force, is not easy to deform, and has a flavoring and smoking effect. However, heat-not-burn cigarettes and traditional cigarettes have obvious differences in the way they are used, so the existing cigarette paper materials used in heat-not-burn cigarettes will cause consumers to smell the paper during the smoking process, thereby reducing the consumer's experience. Summary of the invention

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a paper material and a preparation method thereof, and a heat-not-burn cigarette, which can effectively improve the paper odor of the heat-not-burn cigarette during the smoking process by coating an isolation coating on the surface of cellulose paper, thereby enhancing the consumer experience.

[0005] In a first aspect, the present invention provides a paper material, comprising: cellulose paper and an isolation coating, wherein the isolation coating is coated on at least one surface of the cellulose paper;

[0006] The isolation coating comprises the following components: wax, polysaccharide and polyethylene glycol, and the weight proportion of the wax, polysaccharide and polyethylene glycol is (5-15):(1-25):(1-10).

[0007] As an optional solution, a cooling agent is also included. Preferably, the cooling agent is polylactic acid.

[0008] Alternatively, the cellulose paper includes at least one of hardwood fibers, softwood fibers and hemp pulp fibers.

[0009] As an alternative, the polysaccharide includes at least one of pectin, starch, ethyl cellulose, carboxymethyl cellulose, agar, xylopentose, xylan and carrageenan.

[0010] As an alternative, the polyethylene glycol substance includes at least one of PEG-1000, PEG-1500, PEG-2000, PEG-2500 and PEG-4000.

[0011] As an option, the wax includes at least one of beeswax, tree wax and palm wax.

[0012] As an optional solution, the particle size D90 of the polylactic acid is less than or equal to 160 μm.

[0013] In a second aspect, the present invention provides a method for preparing a paper material, comprising the following steps:

[0014] Adding the isolation base material to the dispersant, heating and stirring to mix evenly, to obtain an isolation coating slurry; wherein the isolation base material includes wax, polysaccharide, and polyethylene glycol;

[0015] The release coating slurry is evenly coated on the surface of cellulose paper and dried to a certain moisture content to obtain paper material.

[0016] As an option, the isolation base material further comprises polylactic acid.

[0017] As an optional solution, the isolation base material is added to the dispersant, heated and stirred to mix evenly, and the process of obtaining the isolation coating slurry specifically includes:

[0018] After the dispersant is heated to a predetermined temperature, the isolation base material is added to the mixed liquid of the dispersant, and after stirring at a first stirring pressure until there is no agglomeration, the pressure of the stirring container is released, and stirring is continued at a second stirring pressure until there are no bubbles, thereby obtaining an isolation coating slurry.

[0019] As an optional solution, the heating method is an oil bath or a water bath, and the predetermined temperature is 40°C-90°C.

[0020] As an optional solution, the first stirring pressure is 0.3atm-0.8atm, and the second stirring pressure is 0.1atm-0.25atm.

[0021] As an optional solution, in the process of uniformly coating the isolation coating slurry on the surface of the cellulose paper and drying it to a certain moisture content to obtain the paper material, the coating thickness of the isolation coating slurry is 0.1 mm-2 mm.

[0022] As an optional solution, in the process of uniformly coating the isolation coating slurry on the surface of the cellulose paper and drying it to a certain moisture content to obtain the paper material, the drying temperature is 60°C-120°C.

[0023] As an optional solution, in the process of uniformly coating the isolation coating slurry on the surface of the cellulose paper and drying it to a certain moisture content to obtain the paper material, the moisture content is 3%-10%.

[0024] As an optional solution, the cellulose paper has a grammage of 20 to 140 g / m 2 The thickness of cellulose paper is 0.1-1.0 mm, and the air permeability of cellulose paper is 100-30000 cu.

[0025] As an optional solution, the paper weight is 30 to 220 g / m 2 The thickness of the paper is 0.15-1.5 mm, and the air permeability of the paper is 50-10000 cu.

[0026] In a third aspect, the present invention provides a heat-not-burn cigarette, comprising the paper material of the first aspect, or the paper material prepared according to the method of the second aspect.

[0027] As an optional solution, it also includes an aerosol matrix, a fixing device and a filtering device. The paper material is rolled to form a cylindrical inner cavity and the isolation coating is at least coated on the wall surface of the inner cavity. The aerosol matrix, the fixing device and the filtering device are filled in the inner cavity.

[0028] As an optional solution, it also includes an aerosol matrix, a firmware and a filter device, and the paper material wraps the aerosol matrix, the firmware and the filter.

[0029] As an optional solution, it also includes an aerosol matrix, a fixing device and a filtering device. The paper material is rolled into a paper tube. The aerosol matrix is ​​connected to the first end of the paper tube. The fixing device and the filtering device are connected to the second end of the paper tube.

[0030] The paper material provided by the present invention is prepared by coating an isolation coating on the surface of cellulose paper. The isolation coating includes wax, polysaccharide and polyethylene glycol. The isolation coating can effectively isolate the paper odor generated by the cellulose paper during the heating process, thereby improving the aroma value of the aerosol and reducing the temperature of the aerosol, thereby improving the consumer experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a partial enlarged view of a pavement of a paper material in an embodiment of the present application;

[0032] Figure 2 It is a schematic diagram of a process for preparing a paper material according to an embodiment of the present application;

[0033] Figure 3 It is a schematic flow chart of another method for preparing paper material according to an embodiment of the present application.

[0034] In the figure,

[0035] 100. Paper material, 10. Cellulose paper, 20. Release coating. DETAILED DESCRIPTION

[0036] The present application is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention.

[0037] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail with reference to the embodiments below.

[0038] In a first aspect, an embodiment of the present application provides a paper material 100, such as Figure 1 As shown, it includes: cellulose paper 10 and an isolation coating 20, wherein the isolation coating 20 is coated on at least one surface of the cellulose paper 10;

[0039] The isolation coating 20 includes the following components: wax, polysaccharide, polyethylene glycol wax, polysaccharide and polyethylene glycol in a weight ratio of (5-15):(1-25):(1-10).

[0040] It should be noted that the cellulose paper can be any fiber paper currently applicable to the cigarette field, such as but not limited to wood pulp fiber, coniferous wood pulp, hardwood pulp and hemp pulp.

[0041] The release coating may be applied to one surface of the cellulose paper or to two opposing surfaces of the cellulose paper.

[0042] Among them, polysaccharide is the main component of the isolation coating, which is used to isolate the paper from producing paper odor during the heating process; wax and polyethylene glycol are mainly used to improve the problem of increased thickness and poor toughness of paper caused by wax coating. Wax and polyethylene glycol are beneficial to improve the toughness of cellulose paper, avoid paper chipping, and make the paper have good bending properties, which can be bent at will for the preparation of cigarettes.

[0043] It is understood that the weight ratio of wax, polysaccharide and polyethylene glycol can be, but is not limited to, 5:1:1, 10:7:2, 15:1:1, 7:25:10, 13:24:7, 1:19:8, etc.; the ratio of wax, polysaccharide and polyethylene glycol disclosed in the embodiment of the present application is conducive to ensuring that the isolation coating can reliably isolate the paper smell generated by the cellulose paper during the addition process, and at the same time can ensure that the paper has good toughness, is not easy to fall off, is not easy to break, etc. When the weight of the polysaccharide is less than 1, the paper smell of the cellulose paper cannot be effectively isolated; when the weight of the polysaccharide is higher than 25, the thickness of the paper is high and the toughness of the paper is reduced; when the weight of the wax is lower than 5, the toughness of the paper cannot be effectively improved, and when the weight of the wax is higher than 25, the hardness of the paper is insufficient and easy to deform; when the weight of the polyethylene glycol is lower than 1, the toughness of the paper is ineffectively improved; when the weight of the polyethylene glycol is higher than 10, the hardness of the paper is insufficient.

[0044] The embodiment of the present application solves the problem that the paper in the prior art produces a paper odor during the heating process. The embodiment of the present application can effectively isolate the paper odor produced by the cellulose paper during the heating process by coating an isolation coating on the surface of the cellulose paper. The isolation coating includes wax, polysaccharide, polyethylene glycol and polylactic acid, thereby improving the aroma value of the aerosol and reducing the temperature of the aerosol, thereby improving the consumer experience.

[0045] As an achievable method, the isolation coating also includes a cooling agent. The cooling agent may be, but is not limited to, expanded graphite, porous silica gel, etc. In a preferred embodiment, the cooling agent is polylactic acid. The polylactic acid in this embodiment has good cooling performance and can also improve the hardness and stiffness of the paper material, which is convenient for making heat-not-burn cigarettes.

[0046] Illustratively, the isolation coating includes wax, polysaccharide, polyethylene glycol and polylactic acid, and the weight ratio of the wax, polysaccharide, polyethylene glycol and polylactic acid is (5-15):(1-25):(1-10):(0-25).

[0047] As an achievable manner, the cellulose paper includes at least one of broadleaf fiber, coniferous fiber and hemp pulp fiber. The cellulose paper of this embodiment has good performance, is environmentally friendly, and has easily available raw materials and low cost.

[0048] As an achievable manner, the polysaccharide includes at least one of pectin, starch, ethyl cellulose, carboxymethyl cellulose, agar, xylopentose, xylan and carrageenan. The polysaccharide raw materials of the embodiments of the present application are easily available and low in cost.

[0049] As an achievable aspect, the polyethylene glycol substance includes at least one of PEG-1000, PEG-1500, PEG-2000, PEG-2500 and PEG-4000.

[0050] As an achievable method, the wax includes at least one of beeswax, tree wax and palm wax. The waxes in this embodiment are all natural waxes or plant waxes, which are environmentally friendly, have readily available raw materials, are safe for human use, and can also improve the toughness of paper.

[0051] As an achievable method, the particle size D90 of the polylactic acid is less than or equal to 160 μm. The particle size of the polylactic acid in this embodiment is conducive to improving the dispersibility of the isolation coating and ensuring that the isolation coating is evenly dispersed; when the particle size of the polylactic acid is greater than 160 μm, the isolation coating is prone to accumulation, resulting in uneven dispersion.

[0052] In summary, the paper material of the embodiment of the present application, by coating the isolation coating on the surface of the cellulose paper, the isolation coating includes wax, polysaccharide, polyethylene glycol and polylactic acid, which can effectively isolate the paper smell generated by the cellulose paper during the heating process, improve the aroma value of the aerosol, and can also reduce the temperature of the aerosol, thereby improving the consumer experience;

[0053] The isolation coating also includes polylactic acid, which has a good cooling effect. At the same time, polylactic acid can also improve the hardness and stiffness of the paper material, so that the paper material improves the performance of heat-not-burn cigarettes, thereby enhancing the user experience.

[0054] In a second aspect, the embodiments of the present application provide a method for preparing a paper material, such as Figure 2 and 3 As shown, the following steps are included:

[0055] S10, adding the isolation base material to the dispersant, heating and stirring to mix evenly, to obtain an isolation coating slurry; wherein the isolation base material includes polysaccharide, wax and PEG.

[0056] It can be understood that water and / or ethanol as a dispersant or solvent is beneficial for dissolving and dispersing the isolation base material, so that the isolation base material is evenly dispersed to obtain a coating slurry.

[0057] In other embodiments, the dispersant may also be other organic solvents, such as but not limited to benzene, ether, methanol, acetone, etc.

[0058] Specifically, in actual use, water, ethanol, wax and polysaccharide are used in the following weight ratio: (50-90): (0-20): (5-15): (1-25).

[0059] The heating method may be any one, such as but not limited to a water bath, a constant temperature box, etc., and the stirring method may be a magnetic stirring, an oscillator, etc., and the embodiments of the present application do not make specific limitations on this.

[0060] S20, uniformly coating the isolation coating slurry on the surface of the cellulose paper, and drying to a certain water content to obtain a paper material.

[0061] The isolation coating slurry may be coated onto the surface of the cellulose paper by laminating or spraying, which is not specifically limited in the embodiments of the present application.

[0062] The preparation method of the embodiment of the present application is simple to operate and can reliably obtain paper coated with an isolation coating.

[0063] Further, the isolation base material is added to the dispersant, heated and stirred to mix evenly, and the process of obtaining the isolation coating slurry specifically includes:

[0064] After the dispersant is heated to a predetermined temperature, the isolation coating is added to a mixture of water and ethanol, and stirred at a first stirring pressure until there is no agglomeration, the pressure of the stirring container is released, and stirring is continued at a second stirring pressure until there are no bubbles, thereby obtaining an isolation coating slurry.

[0065] Among them, adding water and ethanol to a predetermined temperature first is conducive to uniform mixing of water and ethanol, and is also conducive to dissolving and dispersing the isolation base material.

[0066] In this embodiment, the isolation base material, water and ethanol are placed in a sealed stirring tank for reaction, and the pressure of the stirring tank is adjusted, which is beneficial to shorten the mixing time of the isolation base material and ensure that the isolation base material is mixed evenly. After releasing the pressure of the stirring container, stirring is continued, which is mainly used to remove the gas generated during the mixing process of the isolation coating slurry to avoid affecting the uniformity of the isolation coating slurry coating due to the presence of gas.

[0067] In a preferred embodiment, the heating method is an oil bath or a water bath, and the predetermined temperature is 40°C-90°C.

[0068] The heating method in this embodiment is simple, easy to implement, environmentally friendly, and the heating is uniform.

[0069] Among them, the predetermined temperature can be but is not limited to 40°C, 50°C, 60°C, 70°C, 80°C or 90°C. The predetermined temperature of this embodiment is conducive to the uniform dispersion of the isolation base material and will not cause a large amount of volatilization of water and ethanol. When the predetermined temperature is lower than 40°C, the homogenization time required for the isolation base material is longer and is not conducive to the dispersion of the dry material. When the predetermined temperature is higher than 90°C, the volatile intensity of the isolation liquid base liquid is large, resulting in a change in the formula ratio. Further, as a more preferred embodiment, the predetermined temperature is 45-75°C.

[0070] In some embodiments, the first stirring pressure is 0.3 atm-0.8 atm.

[0071] The first stirring pressure can be, but is not limited to, 0.3atm, 0.4atm, 0.5atm, 0.6atm, 0.7atm or 0.8atm; the first stirring pressure in this embodiment is conducive to shortening the mixing time, and is safe to use, ensuring that the isolation base material is mixed evenly; when the first stirring pressure is lower than 0.3atm, the liquid material is prone to explosive boiling, resulting in the liquid material being discharged from the vacuum valve, thereby causing material loss and damage to the vacuum equipment; when the first stirring pressure is higher than 0.8atm, the material activity intensity is low, resulting in a prolonged mixing time. In a preferred embodiment, the first stirring pressure is 0.5atm to 0.75atm.

[0072] In some embodiments, the second stirring pressure is 0.1 atm-0.25 atm.

[0073] The second stirring pressure of this embodiment is beneficial to the removal of gas in the isolation coating slurry, thereby improving the uniformity of the coating.

[0074] The second stirring pressure may be, but is not limited to, 0.1 atm, 0.12 atm, 0.15 atm, 0.17 atm, 0.2 atm or 0.25 atm. When the second stirring pressure is lower than 0.1 atm, the liquid material is prone to explosive boiling, causing the liquid material to be discharged from the vacuum valve, thereby causing material loss and damage to the vacuum equipment. When the second stirring pressure is higher than 0.25 atm, it is not conducive to the removal of gas in the liquid material, resulting in a decrease in the uniformity of the isolation coating during the laminating / coating process. In a preferred embodiment, the second stirring pressure is 0.15 atm to 0.2 atm.

[0075] In some embodiments, in the process of uniformly coating the isolation coating slurry on the surface of cellulose paper and drying to a certain moisture content to obtain paper, the coating thickness of the isolation coating slurry is 0.1 mm-2 mm.

[0076] The coating thickness in this embodiment can effectively isolate the smell of paper impurities without affecting the heating of the aerosol-based matrix, which is beneficial to improving the consumer experience.

[0077] The coating thickness of the isolation coating slurry can be, but is not limited to, 0.1 mm, 0.3 mm, 0.5 mm, 0.7 mm, 1 mm, 1.2 mm or 1.5 mm; when the coating thickness of the isolation coating slurry is less than 0.1 mm, the resulting isolation coating is thinner, which is not conducive to blocking the impurities generated by the cellulose paper; when the coating thickness of the isolation coating slurry is greater than 2 mm, the resulting isolation coating is thicker, which will block heat transfer, is not conducive to heating the aerosol matrix, and reduces the consumer's experience. In a preferred embodiment, the thickness of the isolation liquid coating is 0.15 mm to 0.5 mm;

[0078] In some embodiments, in the process of uniformly coating the release coating slurry on the surface of cellulose paper and drying to a certain moisture content to obtain paper, the drying temperature is 60°C-120°C.

[0079] The drying temperature of this embodiment is beneficial to preventing cracking of the isolation coating and is also beneficial to shortening the drying time.

[0080] The drying temperature may be, but is not limited to, 60°C, 70°C, 80°C, 90°C, 100°C, 110°C or 120°C; when the drying temperature is lower than 60°C, a longer drying time is required, which is not conducive to production; when the drying temperature is higher than 120°C, the isolation coating will crack, affecting the quality of the paper.

[0081] In a preferred embodiment, the drying temperature is 65°C to 100°C.

[0082] In some embodiments, in the process of uniformly coating the isolation coating slurry on the surface of cellulose paper and drying to a certain moisture content to obtain paper material, the moisture content is 3%-10%.

[0083] Furthermore, in some embodiments, the cellulose paper has a grammage of 20 g / m 2 ~140g / m 2 The thickness of cellulose paper is 0.1mm~1.0mm, and the air permeability of cellulose paper is 100cu~30000cu.

[0084] In some embodiments, the weight of the paper is 30 g / m 2 ~220g / m 2 The thickness of the paper is 0.15mm~1.5mm, and the air permeability of the paper is 50cu~10000cu.

[0085] The grammage, thickness and air permeability of the paper material of this embodiment ensure that the paper material has good performance and is not easy to break or chip, and does not affect the heating of the aerosol matrix, thereby helping to ensure that the cigarette has a good experience.

[0086] In summary, the preparation method of the embodiment of the present application is simple to operate, and is conducive to ensuring that the obtained paper material has good performance and can improve the paper odor during the suction process.

[0087] In a third aspect, the embodiments of the present application provide a heat-not-burn cigarette, comprising the paper material of the first aspect, or comprising the paper material prepared according to the method of the second aspect. It is understandable that the heat-not-burn cigarette has all the characteristics and advantages of the aforementioned paper material, which will not be repeated here. In general, the heat-not-burn cigarette has a good smoking experience.

[0088] In some embodiments, the heat-not-burn cigarette further includes an aerosol matrix, a fixing device and a filter device. The paper material is wound to form a cylindrical inner cavity and the isolation coating is at least located on the wall surface of the inner cavity. The aerosol matrix, the fixing device and the filter device are filled in the inner cavity.

[0089] It should be noted that the firmware can generally be a cooling component, a sealing component, etc.; the heat-not-burn cigarette of this embodiment can block the paper smell generated by the cellulose paper during the heating process because the isolation coating separates the aerosol matrix and the cellulose paper, thereby giving consumers a good experience.

[0090] It can also be understood that other assembly methods of the heat-not-burn cigarette of the embodiment of the present application are the same as those in the prior art and will not be described in detail here.

[0091] In some other embodiments, the aerosol matrix, the firmware and the filter device are further included, and the paper material wraps the aerosol matrix, the firmware and the filter device.

[0092] The firmware in this embodiment also refers to cooling parts, sealing parts, etc., and a heat-not-burn cigarette is obtained by winding and wrapping paper materials, aerosol matrix, firmware and filtering devices. The structure is simple, and the isolation coating on the paper material can effectively isolate the aerosol matrix and cellulose paper, thereby blocking the paper smell generated by the cellulose paper during the heating process and enhancing the consumer experience.

[0093] In some embodiments, it also includes an aerosol matrix, a fixing device and a filtering device. The paper material is rolled into a paper tube. The aerosol matrix is ​​connected to the first end of the paper tube. The fixing device and the filtering device are connected to the second end of the paper tube.

[0094] The structure of the heat-not-burn cigarette in this embodiment is conducive to improving the utilization rate of aerosol, preventing condensation, and thus improving the consumer experience.

[0095] The present invention is described below by means of specific examples. It should be noted that the following specific examples are only for illustrative purposes and do not limit the scope of the present invention in any way. In addition, unless otherwise specified, methods without specific conditions or steps are conventional methods, and the reagents and materials used can be obtained from commercial channels.

[0096] Example 1

[0097] Prepare an isolation coating by mixing water, ethanol, beeswax, pectin and PEG-1500 in a ratio of 25:25:10:25:15, place the water and ethanol solution in a 70°C water bath for heating, and after the temperature of the water and ethanol reaches the set temperature, add beeswax, pectin and PEG-1500 into the water and ethanol, stir and heat, and operate the stirring container at a pressure of 0.6atm until the materials are mixed evenly and there is no agglomeration, then set the stirring container to 0.2atm pressure to exhaust, and continue stirring for 20 minutes to obtain an isolation coating slurry;

[0098] The isolation coating slurry is evenly coated with a thickness of 0.15 mm to a gram weight of 40 g / m 2 The thickness is 0.1mm, and the air permeability is 15000cu cellulose paper surface, and the paper is dried at 95℃ until the water content of the paper is less than 6% to obtain the paper, and the weight of the obtained paper is 75g / m 2 , thickness is 0.17mm, air permeability is 2000cu;

[0099] The paper material is rolled into a tube to obtain a φ9mm\45mm long paper firmware. After the paper firmware is filled with a 12mm aerosol matrix, a 7mm cooling section, and a 7mm filtering section, a low-temperature heating cigarette can be obtained.

[0100] Example 2

[0101] Prepare an isolation coating by mixing water, ethanol, palm wax, carrageenan, PEG-2000 and PLA in a ratio of 35:15:10:20:10:10, place water and ethanol in a 65°C water bath for heating, add palm wax, carrageenan, PEG-2000 and PLA into water and ethanol after the temperature of water and ethanol reaches the set temperature, stir and heat, operate the stirring container at a pressure of 0.6 atm until the materials are mixed evenly and there is no agglomeration, set the stirring container to a pressure of 0.25 atm for exhaust, and continue stirring for 10 minutes to obtain an isolation coating slurry;

[0102] The isolation coating slurry is evenly coated with a thickness of 0.3 mm to a gram weight of 60 g / m 2 The surface of the cellulose paper is 0.2 mm thick and has an air permeability of 600cu. The paper is dried at 65°C until the moisture content is less than 6% to obtain a paper material. The weight of the obtained paper material is 115g / m 2 , thickness is 0.35mm, air permeability is 50cu;

[0103] The paper is cut into pieces with a width of 22.5 mm, and an aerosol matrix with a length of 10 mm, a hollow section with a length of 15 mm, and a filter section with a length of 6 mm are wrapped and connected along the central axis with paper material to obtain a heat-not-burn cigarette.

[0104] Example 3

[0105] Prepare an isolation coating by mixing water, wax, agar and PLA in a ratio of 25:10:25:15, heat the water in a 70°C water bath, add wax, agar and PLA into the water after the water reaches the set temperature, stir and heat, operate the stirring container at a pressure of 0.65 atm until the mixture is evenly mixed and free of lumps, set the stirring container to 0.2 atm pressure for exhaust, and continue stirring for 30 minutes to obtain an isolation coating slurry;

[0106] The isolation coating slurry is evenly coated with a thickness of 0.4 mm to a gram weight of 70 g / m 2 The surface of the cellulose paper is 0.2 mm thick and 500 cu permeability, and the paper is dried at 70°C until the water content of the paper is less than 8%. The weight of the paper is 135 g / m 2 , thickness is 0.37mm, air permeability is 2000cu;

[0107] The multifunctional paper material is rolled into a tube to obtain a tube with a diameter of The paper firmware is connected to the aerosol matrix and the filter section center respectively to obtain a low-temperature heated cigarette.

[0108] Example 4

[0109] The difference between this embodiment and embodiment 1 is that the water bath temperature in this embodiment is 40°C.

[0110] Example 5

[0111] The difference between this embodiment and embodiment 1 is that the water bath temperature in this embodiment is 90°C.

[0112] Example 6

[0113] The difference between this embodiment and embodiment 1 is that the first stirring pressure in this embodiment is 0.3 atm.

[0114] Example 7

[0115] The difference between this embodiment and embodiment 1 is that the first stirring pressure in this embodiment is 0.8 atm.

[0116] Example 8

[0117] The difference between this embodiment and embodiment 1 is that the second stirring pressure in this embodiment is 0.1 atm.

[0118] Example 9

[0119] The difference between this embodiment and embodiment 1 is that the coating thickness of the isolation coating in this embodiment is 0.1 mm.

[0120] Example 10

[0121] The difference between this embodiment and embodiment 1 is that the coating thickness of the isolation coating in this embodiment is 1 mm.

[0122] Embodiment 11

[0123] The difference between this embodiment and embodiment 1 is that the coating thickness of the isolation coating in this embodiment is 2 mm.

[0124] Example 12

[0125] The difference between this embodiment and embodiment 1 is that the drying temperature in this embodiment is 60°C.

[0126] Example 13

[0127] The difference between this embodiment and embodiment 1 is that the drying temperature in this embodiment is 120°C.

[0128] Embodiment 14

[0129] The difference between this embodiment and embodiment 1 is that the water content in this embodiment is 3%.

[0130] Embodiment 15

[0131] The difference between this embodiment and embodiment 1 is that the water content in this embodiment is 10%.

[0132] According to the sensory evaluation standard for tobacco and tobacco products YC / T138-1998, a smoking evaluation panel consisting of 15 smoking evaluation experts was organized to evaluate the cigarettes of Examples 1-15 and the control sample and test the draw resistance index, wherein the control sample is a heat-not-burn cigarette made of paper material without a barrier coating on cellulose paper. The evaluation and test results are listed in the following Table 1:

[0133] Table 1 Test results of Examples 1-15 and control samples

[0134]

[0135]

[0136] According to the results shown in Table 1:

[0137] Compared with the control samples, the heat-not-burn cigarettes of Examples 1-15 have significantly improved performance in terms of smoke volume, smoke smoothness, uniformity, aroma value, smoke temperature, etc., and the overall sensory quality is also significantly improved. This shows that the paper materials of the embodiments of the present application can effectively improve the smoking experience of heat-not-burn cigarettes.

[0138] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with the technical features with similar functions disclosed in this application (but not limited to) by each other.

Claims

1. A paper material, characterized in that: include: A cellulose paper and a release coating, the release coating being coated on at least one surface of the cellulose paper; The isolation coating comprises the following components: wax, polysaccharide and polyethylene glycol, and the weight ratio of the wax, the polysaccharide and the polyethylene glycol is (5-15):(1-25):(1-10).

2. The paper material according to claim 1, characterized in that The isolation coating also includes a cooling agent, and preferably, the cooling agent is polylactic acid.

3. The paper material according to claim 1, characterized in that: The cellulose paper includes at least one of hardwood fibers, softwood fibers and hemp pulp fibers.

4. The paper material according to claim 1, characterized in that: The polysaccharide includes at least one of pectin, starch, ethyl cellulose, carboxymethyl cellulose, agar, xylopentose, xylan and carrageenan.

5. The paper material according to claim 1, characterized in that: The polyethylene glycol material includes at least one of PEG-1000, PEG-1500, PEG-2000, PEG-2500 and PEG-4000.

6. The paper material according to claim 1, characterized in that: The wax includes at least one of beeswax, tree wax and palm wax.

7. The paper material according to claim 2, characterized in that: The particle size D90 of the polylactic acid is less than or equal to 160 μm.

8. A method for preparing paper material, characterized in that: The steps include: Adding the isolation base material to the dispersant, heating and stirring to mix evenly, to obtain an isolation coating slurry; wherein the isolation base material includes wax, polysaccharide, and polyethylene glycol; The isolation coating slurry is uniformly coated on the surface of the cellulose paper and dried to a certain water content to obtain the paper material.

9. The method according to claim 8, characterized in that The isolation base material also includes polylactic acid.

10. The method according to claim 9, characterized in that The process of adding the isolation base material to the dispersant, heating and stirring to mix evenly to obtain the isolation coating slurry specifically includes: After the dispersant is heated to a predetermined temperature, the isolation base material is added to the dispersant, and after stirring at a first stirring pressure until there is no agglomeration, the pressure of the stirring container is released, and stirring is continued at a second stirring pressure until there are no bubbles, thereby obtaining an isolation coating slurry.

11. The method according to claim 9, characterized in that The heating method is an oil bath or a water bath, and the predetermined temperature is 40°C-90°C.

12. The method according to claim 9, characterized in that The first stirring pressure is 0.3atm-0.8atm, and the second stirring pressure is 0.1atm-0.25atm.

13. The method according to claim 8, characterized in that In the process of uniformly coating the isolation coating slurry on the surface of the cellulose paper and drying to a certain water content to obtain the paper material, the coating thickness of the isolation coating slurry is 0.1 mm-2 mm.

14. The method according to claim 8, characterized in that In the process of uniformly coating the isolation coating slurry on the surface of the cellulose paper and drying to a certain water content to obtain the paper material, the drying temperature is 60° C.-120° C.

15. The method according to claim 8, characterized in that In the process of uniformly coating the isolation coating slurry on the surface of the cellulose paper and drying to a certain moisture content to obtain the paper material, the moisture content is 3%-10%.

16. The method according to claim 8, characterized in that The cellulose paper has a grammage of 20 to 140 g / m 2 The thickness of the cellulose paper is 0.1-1.0 mm, and the air permeability of the cellulose paper is 100-30000 cu.

17. The method according to claim 8, characterized in that The gram weight of the paper material is 30 to 220 g / m 2 The thickness of the paper material is 0.15 to 1.5 mm, and the air permeability of the paper material is 50 to 10000 cu.

18. A heat-not-burn cigarette, characterized in that: The invention relates to a paper material comprising the paper material according to any one of claims 1 to 7, or a paper material prepared by the method according to any one of claims 8 to 17.

19. The heat-not-burn cigarette according to claim 18, characterized in that: It also includes an aerosol matrix, a fixing device and a filtering device. The paper material is rolled to form a cylindrical inner cavity and the isolation coating is at least coated on the wall surface of the inner cavity. The aerosol matrix, the fixing device and the filtering device are filled in the inner cavity.

20. The heat-not-burn cigarette according to claim 18, characterized in that: It also includes an aerosol matrix, a fixed component and a filter device, wherein the paper material wraps and wraps the aerosol matrix, the fixed component and the filter device.

21. The heat-not-burn cigarette according to claim 18, characterized in that: It also includes an aerosol matrix, a fixing device and a filtering device. The paper material is rolled up to form a paper tube. The aerosol matrix is ​​connected to the first end of the paper tube. The fixing device and the filtering device are connected to the second end of the paper tube.

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