Heat-not-burn cigarette and application thereof

Abstract

The invention provides a heat-not-burn cigarette and application thereof.The heat-not-burn cigarette comprises a cigarette inner core, and the cigarette inner core is prepared through a method including the following steps that tobacco powder, an atomizing agent, a solvent and a binder are mixed to obtain a mixed solution, then the mixed solution is sucked into foam metal in a vacuumizing mode, and the foam metal is sealed to obtain the heat-not-burn cigarette. And drying to obtain the cigarette inner core. The heating non-combustion cigarette is low in suction resistance, good in heat conduction effect, sufficient in smoke amount, good in production stability and high in consistency.

Description

Technical Field

[0001] The present invention belongs to the technical field of cigarette manufacturing, and particularly relates to a heat-not-burn cigarette and its application, and more particularly to a heat-not-burn cigarette with low draw resistance and its application. Background Art

[0002] A heat-not-burn cigarette obtains smoke by heating reconstituted tobacco. The generated smoke mainly comes from the atomized smoke of glycerol / propylene glycol and flavoring agents. Since the tobacco material does not burn during use and is heated at a temperature below 500°C, its temperature is much lower than that of traditional cigarettes. Therefore, the harmful chemical components and biological toxicity in the generated smoke are much less than those of traditional tobacco.

[0003] Currently, the mainstream heat-not-burn cigarette cores are mostly in the form of tobacco sheets, which are prepared by rolling a mixture of tobacco raw material powder, tobacco extract, tobacco flavoring agent, shaping agent, fuming agent, binder, etc. into a sheet form. The cigarette prepared in this way has a low thermal conductivity, and the heat is difficult to be quickly transferred, resulting in a small amount of smoke in the first few puffs and affecting the smoking taste. Some existing patents use metal sheets pressed on the surface of tobacco sheets to form composite sheets. Although this method can improve the thermal conductivity, in actual production, the metal sheets are easily detached, resulting in uneven mixing during processing and affecting the consistency of the product.

[0004] CN118058511A discloses a heat-not-burn cigarette and its heating device. The heating device includes a device body and a foam heating element. The device body is provided with an air inlet, a first chamber, and a second chamber that are sequentially connected. The second chamber is used to accommodate the cigarette. The foam heating element is arranged in the first chamber. The foam heating element includes a main body and a plurality of pores arranged on the main body. The pores are connected to the air inlet. The heat generated by the main body can conduct heat with the air, and the high-temperature gas after heat conduction can flow into the cigarette to make the cigarette generate aerosol. This heating device can improve the utilization rate of the heat generated by the foam heating element, is beneficial to improving the heating effect on the cigarette, can increase the heating rate of the cigarette, and increase the yield of aerosol. However, it heats through high-temperature gas, and the heat conduction effect is uneven.

[0005] CN110959901A discloses a heat-not-burn cigarette using a tobacco-flavored tobacco functional flavor raw material composition. The heat-not-burn cigarette includes an electric heating component, a cartridge component, and a suction component. A smoking material is provided in the cartridge component. The smoking material includes a tobacco-flavored tobacco functional flavor raw material composition, a heat-conducting material, and a binder. The tobacco-flavored tobacco functional flavor raw material composition is composed of the following components: a secondary light component product of tobacco supercritical molecular distillation, a tertiary light component product of tobacco supercritical molecular distillation, a tobacco functional flavor raw material, a 400°C dry distillation product of tobacco, and a 350°C dry distillation product of tobacco. The balance is a solvent. The invention overcomes the deficiencies of existing tobacco treatment methods applied to new tobacco and makes up for the deficiencies such as insufficient tobacco aroma and physiological strength of existing heat-not-burn cigarettes. However, it still has a series of problems caused by a low heat conduction coefficient.

[0006] Therefore, how to provide a heat-not-burn cigarette with uniform heat conduction effect and high heat conduction coefficient has become an urgent problem to be solved. Summary of the Invention

[0007] In view of the deficiencies of the prior art, the purpose of the present invention is to provide a heat-not-burn cigarette and its application, especially to provide a heat-not-burn cigarette with low draw resistance and its application. The heat-not-burn cigarette provided by the present invention has low draw resistance, good heat conduction effect, sufficient smoke volume, good production stability, and high consistency.

[0008] To achieve the purpose of this invention, the following technical solutions are adopted:

[0009] On the one hand, the present invention provides a heat-not-burn cigarette. The cigarette rod core of the heat-not-burn cigarette is prepared by the following method:

[0010] Mix tobacco powder, atomizing agent, solvent, and binder to obtain a mixed solution (atomizing medium), and then draw the mixed solution into the porous metal by vacuum pumping, and dry to obtain the cigarette rod core.

[0011] By drawing the mixed solution into the porous metal by vacuum pumping, the porous structure of the porous metal is fully utilized, so that the atomizing medium is evenly distributed inside the porous metal, increasing the contact area between the atomizing medium and the metal, realizing efficient large-area contact, thereby enhancing the heat exchange efficiency between the atomizing medium and the high heat-conducting metal, improving the atomization efficiency, making the smoke volume more sufficient, effectively reducing the draw resistance, having good production stability, and high consistency.

[0012] Preferably, the tobacco powder, atomizing agent, solvent, and binder are 15-60 parts by weight of tobacco powder, 5-50 parts by weight of atomizing agent, 1-20 parts by weight of binder, and 20-200 parts by weight of solvent, respectively.

[0013] The number of parts of the tobacco powder can be 15 parts, 20 parts, 25 parts, 30 parts, 35 parts, 40 parts, 45 parts, 50 parts, 55 parts or 60 parts, etc. The number of parts of the atomizing agent can be 5 parts, 10 parts, 15 parts, 20 parts, 25 parts, 30 parts, 35 parts, 40 parts, 45 parts or 50 parts, etc. The number of parts of the binder can be 1 part, 3 parts, 5 parts, 7 parts, 9 parts, 11 parts, 13 parts, 15 parts, 17 parts or 20 parts, etc. The number of parts of the solvent can be 20 parts, 40 parts, 60 parts, 80 parts, 100 parts, 120 parts, 140 parts, 160 parts, 180 parts or 200 parts, etc. However, it is not limited to the values listed above, and other unlisted values within the above numerical range are equally applicable.

[0014] Preferably, the mixing further includes mixing with a flavoring agent.

[0015] Preferably, the number of parts of the flavoring agent by weight is 0 - 15 parts (such as 0 parts, 1 part, 3 parts, 5 parts, 7 parts, 9 parts, 11 parts, 13 parts or 15 parts, etc.), and 0 part means no flavoring agent is added.

[0016] Preferably, the atomizing agent includes propylene glycol and / or glycerol.

[0017] Preferably, the binder includes any one or a combination of at least two of sodium carboxymethyl cellulose, hydroxypropyl methylcellulose, sodium alginate, modified starch, carrageenan, guar gum or xanthan gum.

[0018] Preferably, the porous metal includes any one of aluminum, aluminum alloy, copper, copper alloy, stainless steel, molybdenum, nickel, molybdenum alloy, silver, silver alloy, magnesium, magnesium alloy, titanium or titanium alloy.

[0019] Preferably, the average porosity of the porous metal is 50 - 90%, and the average pore diameter is 0.1 - 2 mm. Among them, the average porosity can be 50%, 55%, 60%, 65%, 70%, 75%, 80%, 85% or 90%, etc., and the average pore diameter can be 0.1 mm, 0.5 mm, 1 mm, 1.5 mm or 2 mm, etc. However, it is not limited to the values listed above, and other unlisted values within the above numerical range are equally applicable.

[0020] Preferably, pumping the mixed liquid into the porous metal in the form of vacuum pumping further includes drying and releasing the vacuum after pumping.

[0021] The above process can ensure that the atomizing medium is evenly distributed inside the porous metal, improving the product effect.

[0022] Preferably, the degree of vacuum for evacuation is -0.06 to -0.1 MPa, such as -0.06 MPa, -0.07 MPa, -0.08 MPa, -0.09 MPa or -0.1 MPa, etc., but not limited to the values listed above. Other unlisted values within the above numerical range are equally applicable.

[0023] Preferably, the temperature for drying after suction is 40 - 50 °C, and the time is 6 - 12 h. The temperature can be 40 °C, 41 °C, 42 °C, 43 °C, 44 °C, 45 °C, 46 °C, 47 °C, 48 °C, 49 °C or 50 °C, etc., and the time can be 6 h, 7 h, 8 h, 9 h, 10 h, 11 h or 12 h, etc., but not limited to the values listed above. Other unlisted values within the above numerical range are equally applicable.

[0024] Preferably, the material is dried until the moisture content is 10 - 18%, such as 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17% or 18%, etc., but not limited to the values listed above. Other unlisted values within the above numerical range are equally applicable.

[0025] Preferably, the heat - not - burn cigarette further comprises a filter tip, a cooling section, a cigarette mouthpiece and port cotton.

[0026] On the other hand, the present invention also provides the application of the heat - not - burn cigarette as described above in the preparation of a low - draw - resistance heat - not - burn cigarette.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] The present invention provides a heat - not - burn cigarette. By evacuating the mixture into the foam metal in a vacuum form, the porous structure of the foam metal is fully utilized, enabling the atomization medium to be evenly distributed inside the foam metal, increasing the contact area between the atomization medium and the metal, achieving efficient large - area contact, thereby enhancing the heat exchange efficiency between the atomization medium and the high - thermal - conductivity metal, improving the atomization efficiency, making the smoke volume more sufficient, effectively reducing the draw resistance, and having good production stability and high consistency. Detailed Embodiments

[0029] To further elaborate on the technical means and effects adopted by the present invention, the following further illustrates the technical solutions of the present invention in combination with the preferred embodiments of the present invention. However, the present invention is not limited to the scope of the embodiments.

[0030] In the following examples, the foam metal is purchased from Yiminglong Online Store. The foam aluminum alloy model is 30 - 50 ppi; the foam nickel model is 95 - 110 ppi; the foam copper model is 20 - 30 ppi.

[0031] Example 1

[0032] This embodiment provides a heat-not-burn cigarette (with a tobacco core diameter of 7.3 mm and a tobacco core length of 13 mm), which includes a filter tip (mouthpiece cotton), a cooling element, a cigarette mouthpiece, a cigarette inner core, and a port cotton (porous cotton plug) connected in sequence, and is co-axially wrapped and rolled with cigarette paper.

[0033] The preparation method of the cigarette inner core is as follows:

[0034] Mix 30 parts (100 mesh) of tobacco powder, 35 parts of an atomizing agent (25 parts of propylene glycol and 10 parts of glycerol), 2 parts of mint essence, 15 parts of ethanol, and 15 parts of water, and stir at 40 °C for 2 h. Then add 3 parts of the binder sodium carboxymethyl cellulose and continue to stir for 1 h to obtain a mixed solution;

[0035] Place the aluminum alloy foam (average porosity 80%, average pore diameter 0.8 mm) in a mold, and suck the mixed solution into the aluminum alloy foam by vacuum pumping (vacuum degree -0.08 MPa, pumping and injecting for 8 min), and carry out vacuum drying at 45 °C for 10 h. After releasing the vacuum, place it in a drying oven at 60 °C until the moisture content is 12%;

[0036] Cut the aluminum alloy foam into strips to be used as the cigarette inner core.

[0037] Example 2

[0038] This embodiment provides a heat-not-burn cigarette (with a tobacco core diameter of 7.3 mm and a tobacco core length of 13 mm), which includes a filter tip (mouthpiece cotton), a cooling element, a cigarette mouthpiece, a cigarette inner core, and a port cotton (porous cotton plug) connected in sequence, and is co-axially wrapped and rolled with cigarette paper.

[0039] The preparation method of the cigarette inner core is as follows:

[0040] Mix 25 parts (100 mesh) of tobacco powder, 40 parts of an atomizing agent (35 parts of propylene glycol and 5 parts of glycerol), 2 parts of mint essence, 17 parts of ethanol, and 13 parts of water, and stir at 40 °C for 3 h. Then add 3 parts of the binder hydroxypropyl methylcellulose and continue to stir for 0.5 h to obtain a mixed solution;

[0041] Place the nickel foam (average porosity 80%, average pore diameter 0.2 mm) in a mold, and suck the mixed solution into the nickel foam by vacuum pumping (vacuum degree -0.1 MPa, pumping and injecting for 5 min), and carry out vacuum drying at 45 °C for 10 h. After releasing the vacuum, place it in a drying oven at 60 °C until the moisture content is 15%;

[0042] Cut the nickel foam into strips to be used as the cigarette inner core.

[0043] Example 3

[0044] This embodiment provides a heat-not-burn cigarette (with a cigarette core diameter of 7.3 mm and a cigarette core length of 13 mm), which includes a filter tip (mouthpiece cotton), a temperature-reducing component, a cigarette mouthpiece, a cigarette inner core, and a port cotton (porous cotton plug) connected in sequence, and is obtained by coaxial wrapping and rolling with cigarette paper.

[0045] The preparation method of the cigarette inner core is as follows:

[0046] Mix 40 parts (100 mesh) of tobacco powder, 30 parts of an aerosol (20 parts of propylene glycol and 10 parts of glycerol), 12 parts of ethanol, and 16 parts of water, and stir at 50 °C for 3 h. Then add 2 parts of the binder sodium alginate and continue to stir for 1 h to obtain a mixed solution;

[0047] Take copper foam (average porosity 85%, average pore diameter 1.0 mm) and place it in a mold. By vacuum pumping (vacuum degree -0.06 MPa, pumping and injecting for 8 min), the mixed solution is pumped into the copper foam, and vacuum drying is carried out at 45 °C for 10 h. After releasing the vacuum, place it in a drying oven at 60 °C until the moisture content is 10%;

[0048] Cut the copper foam into strips to be used as the cigarette inner core.

[0049] Example 4

[0050] This embodiment provides a heat-not-burn cigarette (with a cigarette core diameter of 7.3 mm and a cigarette core length of 13 mm), which includes a filter tip (mouthpiece cotton), a temperature-reducing component, a cigarette mouthpiece, a cigarette inner core, and a port cotton (porous cotton plug) connected in sequence, and is obtained by coaxial wrapping and rolling with cigarette paper.

[0051] The preparation method of the cigarette inner core is as follows:

[0052] Mix 20 parts (100 mesh) of tobacco powder, 35 parts of an aerosol (25 parts of propylene glycol and 10 parts of glycerol), 2 parts of mint essence, 20 parts of ethanol, and 20 parts of water, and stir at 40 °C for 3 h. Then add 10 parts of the binder sodium carboxymethylcellulose and continue to stir for 1 h to obtain a mixed solution;

[0053] Take aluminum alloy foam (average porosity 90%, average pore diameter 0.8 mm) and place it in a mold. By vacuum pumping (vacuum degree -0.06 MPa, pumping and injecting for 6 min), the mixed solution is pumped into the aluminum alloy foam, and vacuum drying is carried out at 45 °C for 10 h. After releasing the vacuum, place it in a drying oven at 60 °C until the moisture content is 10%;

[0054] Cut the aluminum alloy foam into strips to be used as the cigarette inner core.

[0055] Comparative Example 1

[0056] This comparative example provides a heat-not-burn cigarette (with a cigarette core diameter of 7.3 mm and a cigarette core length of 13 mm), which includes a filter tip (mouthpiece cotton), a cooling element, a cigarette mouthpiece, a cigarette inner core, and a port cotton (porous cotton plug) connected in sequence, and is coaxial wrapped and rolled with cigarette paper to obtain.

[0057] The preparation method of the cigarette inner core is as follows:

[0058] Mix 40 parts (100 mesh) of tobacco powder, 35 parts of an aerosol (25 parts of propylene glycol, 10 parts of glycerol), 5 parts of mint essence, 10 parts of water, and 10 parts of starch, stir at 50 °C for 3 h, then dry to a dough-like state, extrude the particles through a sieve (particle diameter of 20 - 30 mesh), and use it as the filler of the cigarette inner core.

[0059] Comparative Example 2

[0060] This comparative example provides a heat-not-burn cigarette (with a cigarette core diameter of 7.3 mm and a cigarette core length of 13 mm), which includes a filter tip (mouthpiece cotton), a cooling element, a cigarette mouthpiece, a cigarette inner core, and a port cotton (porous cotton plug) connected in sequence, and is coaxial wrapped and rolled with cigarette paper to obtain.

[0061] The preparation method of the cigarette inner core is as follows:

[0062] Mix 40 parts (100 mesh) of tobacco powder, 35 parts of an aerosol (25 parts of propylene glycol, 10 parts of glycerol), 3 parts of essence, and 15 parts of water, stir at 40 °C for 2 h, then add 7 parts of binder sodium carboxymethyl cellulose and continue to stir for 1 h to obtain a tobacco powder mixture; use a roller press to press the tobacco powder mixture on the surface of a cotton fiber substrate, with a rolling rate of 2 r / min, and make a tobacco sheet with a thickness of 0.5 mm after rolling 3 times, cut it into 1 mm wide filaments;

[0063] Take foam aluminum alloy (average porosity 80%, average pore diameter 0.8 mm), cut it into 1 mm wide filaments, and mix and blend it with the tobacco sheet at a mass ratio of 1:4 as the cigarette inner core.

[0064] Comparative Example 3

[0065] This comparative example provides a heat-not-burn cigarette (with a cigarette core diameter of 7.3 mm and a cigarette core length of 13 mm), which includes a filter tip (mouthpiece cotton), a cooling element, a cigarette mouthpiece, a cigarette inner core, and a port cotton (porous cotton plug) connected in sequence, and is coaxial wrapped and rolled with cigarette paper to obtain.

[0066] The preparation method of the cigarette inner core is as follows:

[0067] Weigh 30 parts of tobacco powder, 35 parts of atomizer (25 parts of propylene glycol, 10 parts of glycerol), 3 parts of sodium methylcellulose binder, 2 parts of mint essence, 15 parts of ethanol, and 15 parts of water, mix them thoroughly and evenly, and knead them into a dough-type tobacco powder mixture. Cotton fiber is selected as the porous fiber substrate, and its thickness is 0.1 mm. Use a roller press to press the tobacco powder mixture on the surface of the cotton fiber substrate at a rolling rate of 2 r / min to make a tobacco sheet with a thickness of 0.2 mm. Press the tobacco sheet and the cut aluminum film through a roller press to obtain a metal composite tobacco sheet, cut the metal composite tobacco sheet into shreds, and roll it to obtain the cigarette core.

[0068] Effect test:

[0069] The following tests were all conducted in a standard environment, i.e., an ambient temperature of (22±1)°C and a relative humidity of (60±2)%.

[0070] Test 1, product appearance and physical index test: The sample cigarettes in each embodiment and comparative example (100 cigarettes each) were inspected for appearance to see if there were any quality defects such as wrinkles, cracks, and hollows. The weight and draw resistance of the sample cigarettes in each embodiment and comparative example were tested using a comprehensive cigarette physical index test bench.

[0071] Test 2, temperature test (5 parallel tests): Connect the cigarette sample to an airflow type heat-not-burn smoking device, fix the thermocouple probe at the same position inside the cigarette core, and then conduct a smoking experiment on a linear smoking machine according to standard GB / T 16450-2004, start the smoking device and start recording the internal temperature of the cigarette core.

[0072] Test 3, puff-by-puff atomization test (5 parallel tests): Connect the cigarette sample to the airflow type heat-not-burn smoking device, and conduct a smoking experiment on a linear smoking machine according to the standard GB / T 16450-2004, with the number of puffs set to 10. Each puff channel only captures the aerosol released from a certain puff, and the weight gain of the channel collector is measured to reflect the aerosol release of that puff. The greater the weight gain, the more aerosol is released from that puff, that is, the greater the atomization amount.

[0073] The results are as follows:

[0074] Test 1 results:

[0075] Group Appearance Weight(g) Absorption resistance(Pa) Example 1 Qualification rate ≥90% 0.71±0.025 507±41 Example 2 Qualification rate ≥90% 0.66±0.018 552±22 Example 3 Qualification rate ≥90% 0.72±0.027 515±38 Example 4 Qualification rate ≥90% 0.64±0.020 543±48 Comparative Example 1 Qualification rate ≥90% 0.65±0.021 681±53 Comparative Example 2 The qualified rate is ≤50%, and there are many wrinkles and empty ends. 0.54±0.28 347±178 Comparative Example 3 Qualification rate ≥90% 0.68±0.139 748±91

[0076] Test 2 results:

[0077]

[0078]

[0079] Test 3 results:

[0080]

[0081] From the results of Test 1, it can be seen that the appearance defects of Comparative Example 2 (non-vacuum form, directly mixing the foam aluminum alloy with tobacco flakes) are significantly higher than those of other groups, the relative deviations of weight and draw resistance data are large, and the product consistency is poor. This is because the specific gravity of the foam metal and the tobacco flakes is quite different, and it is not easy to mix the materials evenly during the processing, and the homogenization processing requirements cannot be met, resulting in inconsistent metal content in the cigarette core during the production process. The cigarette core with high foam metal content has more empty heads, resulting in large fluctuations in weight and draw resistance. In addition, the internal pores of the foam metal are prone to air leakage without tobacco filling, and the draw resistance is unstable.

[0082] It can be seen from the results of each embodiment in Test 1 that, compared with the comparative example, each embodiment adopts the vacuum form, which can make the atomized medium evenly distributed inside the foam metal and maintain the foam metal form. Compared with not using foam metal (Comparative Example 1), non-vacuum direct mixing form (Comparative Example 2) and using the existing metal sheet pressed on the surface of the tobacco sheet (Comparative Example 3), it can significantly improve the production consistency. The appearance, weight, and inhalation resistance indicators are relatively balanced, and the product consistency is good. Although the interior of the foam metal is filled with tobacco matrix, pores are still retained, so that the airflow channel is smooth during suction and the inhalation resistance is not high. In Comparative Example 1, small particles are prone to dense accumulation, resulting in a large inhalation resistance. In Comparative Example 3, the metal thermal conductive film, on the one hand, falls off from the tobacco surface during processing, causing certain fluctuations in the weight and inhalation resistance of the cigarette, and the product consistency is poor; on the other hand, the surface of the tobacco sheet is pressed with a completely airtight metal aluminum film, which affects the permeability of the smoke and causes a slightly large inhalation resistance.

[0083] From the results of the cigarette core temperature in Test 2, it can be seen that the internal temperature of the cigarette core of each embodiment is significantly higher than that of the comparative example, and the temperature equilibrium is basically reached at the first puff, which shows that the foam metal improves the thermal conductivity of the cigarette core and improves the heat transfer efficiency.

[0084] It can be seen from the results of the puff-by-puff atomization volume of Test 3 that, compared with the comparative example, the puff-by-puff atomization volume of each embodiment is larger and more stable, and the overall smoke volume is also larger. The above results further illustrate that the foam metal improves the heat transfer efficiency, can quickly transfer heat to the atomization medium, and improves the problem of small smoke volume in the first few puffs. In addition, the evenly distributed metal foam makes the overall heating of the cigarette core more balanced. On the one hand, it improves the atomization efficiency and makes the atomization more complete. On the other hand, the balanced heating is conducive to the smooth release of the aerosol, which can improve the problems of uneven heating of the cigarette, insufficient smoke volume, and uneven release from puff to puff, and improve the smoking experience.

[0085] The applicant declares that the present invention illustrates the heat-not-burn cigarette and its application of the present invention through the above embodiments, but the present invention is not limited to the above embodiments, that is, it does not mean that the present invention must rely on the above embodiments to be implemented. Those skilled in the art should understand that any improvement to the present invention, the equivalent substitution of each raw material of the present invention's product, the addition of auxiliary components, the selection of specific methods, etc. all fall within the protection scope and the disclosure scope of the present invention.

[0086] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, various simple modifications can be made to the technical solutions of the present invention, and these simple modifications all belong to the protection scope of the present invention.

[0087] In addition, it should be noted that, in the case of no contradiction, the various specific technical features described in the above specific embodiments can be combined in any appropriate manner. To avoid unnecessary repetition, the present invention will not separately describe various possible combination manners.

Claims

1. A heat-not-burn cigarette, characterized in that, The heat-not-burn cigarette includes a cigarette core, and the cigarette core is prepared by a method comprising the following steps: Mix tobacco powder, aerosol agent, solvent, and binder to obtain a mixture, and then suck the mixture into the metal foam in a vacuum form, and dry to obtain the cigarette core.

2. The heat-not-burn cigarette according to claim 1, wherein The tobacco powder, aerosol agent, solvent, and binder are respectively 15-60 parts by weight of tobacco powder, 5-50 parts by weight of aerosol agent, 1-20 parts by weight of binder, and 20-200 parts by weight of solvent.

3. The heat-not-burn cigarette according to claim 1 or 2, characterized in that, The mixing further includes mixing with essence; Preferably, the amount of the essence is 0-15 parts by weight, and 0 part means no essence is added.

4. The heat-not-burn cigarette according to any one of claims 1-3, characterized in that, The aerosol agent includes propylene glycol and / or glycerol.

5. The heat-not-burn cigarette according to any one of claims 1-4, characterized in that, The binder includes any one or a combination of at least two of sodium carboxymethyl cellulose, hydroxypropyl methylcellulose, sodium alginate, modified starch, carrageenan, guar gum, or xanthan gum.

6. The heat-not-burn cigarette according to any one of claims 1-5, characterized in that, The metal foam includes any one of aluminum, aluminum alloy, copper, copper alloy, stainless steel, molybdenum, nickel, molybdenum alloy, silver, silver alloy, magnesium, magnesium alloy, titanium, or titanium alloy; Preferably, the average porosity of the metal foam is 50-90%, and the average pore size is 0.1-2 mm.

7. The heat-not-burn cigarette according to any one of claims 1-6, characterized in that, The step of sucking the mixture into the metal foam in a vacuum form further includes drying and releasing the vacuum after sucking; Preferably, the vacuum degree of the vacuum pumping is -0.06 to -0.1 MPa; Preferably, the temperature for drying after sucking is 40-50 °C, and the time is 6-12 h.

8. The heat-not-burn cigarette according to any one of claims 1-6, characterized in that, Dry until the moisture content of the material is 10-18%.

9. The heat-not-burn cigarette according to any one of claims 1-8, characterized in that, The heat-not-burn cigarette further includes a filter tip, a cooling section, a cigarette mouthpiece, and a port cotton.

10. Use of the heat-not-burn cigarette according to any one of claims 1-8 in the preparation of a heat-not-burn cigarette with low draw resistance.

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