Aerosol-generating article, aerosol-generating system

Abstract

The utility model provides an aerosol generation product and an aerosol generation system, and relates to the technical field of aerosol generation. According to the aerosol generating product provided by the invention, the aerosol generating base material section comprises the at least two base material parts which have different thermal conductivity and are used for generating the aerosol, and when the aerosol generating product is used, the fuming material of the base material part with high thermal conductivity is firstly heated, so that the fuming material quickly fumes, the waiting time of a user is shortened, and the user experience is improved. A certain amount of smoke can be quickly sucked through the first opening; and the smoke generating material of the base material part with low thermal conductivity can generate smoke later, so that the puff-by-puff consistency of the whole aerosol generating product can be improved.

Description

Technical Field

[0001] The present application relates to the field of aerosol generation technology, and in particular to an aerosol generating product and an aerosol generating system. Background Art

[0002] In the aerosol generation technology of heating without burning, circumferential heating is mostly adopted. The aerosol generating product is accommodated in the accommodating cavity of the heating device, and heating elements are arranged on the circumferential side of the accommodating cavity. The heating elements are arranged circumferentially around the aerosol generating product to heat the aerosol generating product from the circumferential side. This can maximize the heated area of the aerosol generating product and improve the utilization rate of the smoking material in the aerosol generating product. It has the advantages of large smoke volume and easy maintenance and cleaning. However, there are pain points such as slow smoking and poor consistency from puff to puff. Utility Model Content

[0003] The purpose of the present application is to provide an aerosol generating product and an aerosol generating system, aiming to solve the problems of slow smoke generation and poor puff-by-puff consistency in existing aerosol generating products that adopt a circumferential heating method.

[0004] To achieve the above objectives, the present application provides an aerosol-generating article, comprising an aerosol-generating substrate segment;

[0005] The aerosol-generating substrate segment comprises at least two substrate portions for generating aerosol having different thermal conductivities, the substrate portions comprising smoking material.

[0006] In some embodiments, the smokable material of each substrate portion has a different degree of ordering.

[0007] In some embodiments, the substrate portion includes a first substrate portion and a second substrate portion; the smoke-generating material filled in the first substrate portion is arranged in a disordered manner; and the smoke-generating material filled in the second substrate portion is arranged in an ordered manner.

[0008] In some embodiments, the substrate portion further includes a third substrate portion, and the smoking material filled in the third substrate portion is partially arranged in a disordered manner and partially arranged in an ordered manner.

[0009] In some embodiments, at least a portion of the substrate portion further comprises a thermally conductive enhancement material;

[0010] The ratio of the smoke-generating material to the thermal conductivity enhancing material in each base material portion is different from each other.

[0011] In some embodiments, the aerosol-generating substrate segment comprises a fourth substrate portion, a fifth substrate portion;

[0012] The fifth substrate portion includes the thermal conductivity enhancing material;

[0013] The fourth base material part does not contain the heat conduction enhancing material, or the fourth base material part contains the heat conduction enhancing material, and the proportion of the heat conduction enhancing material in the fourth base material part is less than the proportion of the heat conduction enhancing material in the fifth base material part.

[0014] In some embodiments, the heat conduction enhancing material is a metal material, and the metal material is uniformly distributed in the smoke generating material;

[0015] Or, the heat conduction enhancing material and the smoke generating material are combined to form an integral body.

[0016] In some embodiments, the smoke generating material is cut tobacco, and the cut tobacco and the heat conduction enhancing material are combined to form a smoke generating material monomer, and any one of the smoke generating material monomers is filamentous, sheet-like, spherical, cylindrical or granular.

[0017] In some embodiments, the aerosol generating article has a proximal end and a distal end.

[0018] Each of the base material parts is arranged in sequence along the axial direction of the aerosol generating article;

[0019] From the direction close to the proximal end to the direction close to the distal end, the heat conductivity of each of the base material parts gradually decreases.

[0020] In some embodiments, the aerosol generating article further includes a wrapper wrapped around the outer periphery of the base material part, and the wrappers on the outer peripheries of each of the base material parts have different air permeabilities;

[0021] From the direction close to the proximal end to the direction close to the distal end, the air permeability of the wrappers on the outer peripheries of each of the base material parts gradually decreases.

[0022] The present application also provides an aerosol generating system, including the above-mentioned aerosol generating article and a matching heating appliance.

[0023] In some embodiments, the heating appliance is configured to heat each of the base material parts of the aerosol generating article in sequence according to the order of decreasing heat conductivity.

[0024] Compared with the related art, the beneficial effects of the present application include:

[0025] The aerosol generating article provided by the present application includes at least two base material parts for generating aerosol with different heat conductivities in the aerosol generating base material section. When the aerosol generating article is in use, the smoke generating material of the base material part with a high heat conductivity is heated first, so that it smokes quickly, shortening the waiting time of the user, and a certain amount of smoke volume can be quickly sucked in the first puff; while the smoke generating material of the base material part with a low heat conductivity smokes later, which is beneficial to improving the consistency of each puff of the aerosol generating article as a whole.

[0026] The aerosol generating system provided by the present application generates aerosol quickly and has good puff-to-puff consistency of the aerosol. Description of the Drawings

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application and should not be regarded as limiting the scope of the present application.

[0028] Figure 1 It is a schematic structural diagram of an aerosol generating article according to an embodiment;

[0029] Figure 2 It is a schematic structural diagram of an aerosol generating article according to another embodiment;

[0030] Figure 3 It is a schematic structural diagram of an aerosol generating article according to still another embodiment;

[0031] Figure 4 It is a schematic structural diagram of an aerosol generating system.

[0032] Reference Signs:

[0033] 1000 - aerosol generating article; 100 - aerosol generating substrate section; 10 - first substrate part; 20 - second substrate part; 30 - third substrate part; 40 - fourth substrate part; 50 - fifth substrate part; 52 - first section; 54 - second section; 200 - cooling section; 300 - filtering section; 400 - aerosol generating system; 410 - heating appliance; 420 - receiving groove; 430 - heating assembly. Detailed Embodiments

[0034] The present application provides an aerosol generating article 1000, which can be, for example, a heat-not-burn cartridge. Please refer to Figure 1 , including an aerosol generating substrate section 100; the aerosol generating substrate section 100 includes at least two substrate parts for generating aerosol with different thermal conductivities, and the substrate parts include fuming materials.

[0035] In one embodiment, the smoking material can be a tobacco raw material, a non-tobacco raw material, or a combination of tobacco and non-tobacco materials. In one embodiment, the non-tobacco raw material can be a smoking agent, and the smoking agent can be selected from glycerol, propylene glycol, glycerin, triacetin, diacetin, etc. In one embodiment, the non-tobacco raw material can also be tea leaves, tangerine peel, dark plum, sweet potato, liquorice, chrysanthemum, etc. In addition, the aerosol-generating substrate segment 100 can also include flavoring agents. The smoking material of the aerosol-generating substrate segment 100 can be a particulate smoking material, a filamentous smoking material, or a sheet-type smoking material. The preparation method of the sheet-type smoking material can be a thick slurry method, a papermaking method, a dry papermaking method, a roll pressing method, etc.

[0036] In the circumferential heating method of the related art, the smoking material is heated from the circumferential side, and there is a wrapper that wraps the smoking material between the smoking material and the heating component, without directly contacting the smoking material. The smoking is slow, and the heating area is large. After reaching the heat for smoking, the smoking is completed in a short time. Thus, the smoking is slow but the consumption is fast, and further, during the whole smoking process, the consistency of each puff of the aerosol-generating article as a whole is poor.

[0037] To solve this technical problem, in the present application, the aerosol-generating substrate segment 100 is provided to include at least two substrate parts for generating aerosol with different thermal conductivities. When the aerosol-generating article is in use, the smoking material of the substrate part with a high thermal conductivity is heated first, so that it smokes quickly, shortening the waiting time of the user, and a certain amount of smoke can be quickly sucked in the first puff; and then the smoking material of the substrate part with a low thermal conductivity is heated, and smokes later, which is beneficial to improving the consistency of each puff of the aerosol-generating article as a whole.

[0038] Among them, the number of substrate parts can be two, three, four or more. The thermal conductivities of each substrate part are different. The arrangement order of the substrate parts with different thermal conductivities can be randomly arranged, or can be arranged in sequence according to the high and low thermal conductivities. For example, it can be arranged from the near-mouth end close to the aerosol-generating article 1000 to the far-mouth end close to the aerosol-generating article 1000 in the order of decreasing thermal conductivity, that is, the thermal conductivities of each substrate part gradually decrease; it can also be arranged from the near-mouth end close to the aerosol-generating article 1000 to the far-mouth end close to the aerosol-generating article 1000 in the order of increasing thermal conductivity, that is, the thermal conductivities of each substrate part gradually increase. Among them, the arrangement method of arranging from the near-mouth end close to the aerosol-generating article 1000 to the far-mouth end close to the aerosol-generating article 1000 in the order of decreasing thermal conductivity is better. The substrate part with a high thermal conductivity close to the near-mouth end is heated first, and smoke can be sucked more quickly.

[0039] In some embodiments, the thermal conductivity of the base material portion can be adjusted by regulating the porosity and air permeability of the fumed material. The higher the porosity and air permeability, the higher the thermal conductivity; the lower the porosity and air permeability, the lower the thermal conductivity. For example, the porosity and air permeability of irregularly filled fumed material are higher than those of regularly filled fumed material. Therefore, the fumed materials of the respective base material portions can be arranged with different degrees of order to obtain base material portions with different thermal conductivities.

[0040] Please refer to Figure 1 , the base material portion includes a first base material portion 10 and a second base material portion 20; the fumed material filled in the first base material portion 10 is arranged disorderly; the fumed material filled in the second base material portion 20 is arranged orderly. Therefore, the thermal conductivity of the first base material portion 10 is higher than that of the second base material portion 20.

[0041] Since the first base material portion 10 is arranged near the mouth end of the aerosol generating article 1000, the first base material portion 10 is located downstream in the aerosol suction direction of the second base material portion 20. Herein, the upstream of the aerosol suction direction refers to the far mouth end of the aerosol generating article 1000, and the downstream of the aerosol suction direction refers to the mouth end of the aerosol generating article 1000.

[0042] The first base material portion 10 is located downstream in the aerosol suction direction of the second base material portion 20, and the thermal conductivity of the first base material portion 10 is higher than that of the second base material portion 20. When the aerosol generating article 1000 is circumferentially heated, due to the higher thermal conductivity of the first base material portion 10, the first base material portion 10 is heated first, which is beneficial to rapid fuming, that is, the waiting time of the user is shortened, and a certain amount of smoke can be quickly sucked in the first puff; subsequently, the second base material portion 20 with low thermal conductivity is also heated to generate aerosol, which is beneficial to improving the consistency of each puff of the whole aerosol generating article 1000. Usually, an aerosol generating article is puffed about 13 times. "Consistency of each puff" means that the change in the amount of smoke between adjacent puffs is stable and does not show a sharp rise or fall.

[0043] In one embodiment, the fumed material is cut tobacco. When the aerosol generating article 1000 is in use, since the disordered cut tobacco has better thermal conductivity, the cut tobacco in the first base material portion 10 fumes first. In the first half of the puff, the disordered cut tobacco in the first base material portion 10 is mainly heated to fume. In the middle of the puff, the ordered cut tobacco in the second base material portion 20 has enough heat to fume. Since the thermal conductivity of the ordered cut tobacco is not as good as that of the disordered cut tobacco, the material consumption of the ordered cut tobacco in the first half of the puff is less. The disordered cut tobacco in the first base material portion 10 mainly fumes, and the ordered cut tobacco in the second base material portion 20 mainly fumes in the second half of the puff, which is beneficial to improving the consistency of each subsequent puff.

[0044] Please refer to Figure 2The substrate portion also includes a third substrate portion 30. The smoking material filled in the third substrate portion 30 is partially arranged in a disordered manner and partially arranged in an ordered manner. Therefore, the thermal conductivity of the third substrate portion 30 is lower than the thermal conductivity of the first substrate portion 10 and higher than the thermal conductivity of the second substrate portion 20.

[0045] By providing a third substrate portion 30 having an intermediate thermal conductivity between the first substrate portion 10 and the second substrate portion 20, the span of thermal conductivity among the first substrate portion 10, the third substrate portion 30 and the second substrate portion 20 can be reduced, making smoke generation more uniform and further improving the puff-by-puff consistency.

[0046] In some embodiments, the thermal conductivity of the substrate portion can also be controlled by adjusting the composition of the smoke-generating material. For example, a thermal conductivity enhancing material, such as a metal material, can be added to the smoke-generating material. Since the thermal conductivity of the metal material is higher than that of the smoke-generating material, the proportion of the metal material added to different substrate portions is different, thereby obtaining substrate portions with different thermal conductivities. The ratio of the smoke-generating material to the thermal conductivity enhancing material in each substrate portion is different. The ratio of the smoke-generating material to the thermal conductivity enhancing material can be a mass ratio or a volume ratio. The higher the proportion of the thermal conductivity enhancing material, the higher the thermal conductivity of the corresponding substrate portion.

[0047] Wherein, the metal material is a food-grade material, including but not limited to food-grade stainless steel, silver, copper, gold, aluminum, tungsten, iron, platinum, titanium and other materials. The metal material can be added separately to the smoking material in the base material part so that it is evenly distributed in the smoking material. The metal material can also be combined with the smoking material to form a whole and added to the base material part. Preferably, the metal material is combined with the smoking material to form a whole and added to the base material part, which can improve the contact uniformity between the metal material and the smoking material and improve the thermal conductivity. The smoking material can be tobacco shreds, and the tobacco shreds are combined with the metal material to form a smoking material monomer. The shape of the smoking material monomer can be any one of filaments, sheets, spheres, cylinders, and particles, that is, there can be only one shape of smoking material monomer in the smoking material, or there can be smoking material monomers of multiple shapes. The smoking material and the metal material can be combined together physically, such as lamination, bonding, etc.

[0048] In some embodiments, see Figure 3 The aerosol generating substrate segment 100 includes a fourth substrate portion 40 and a fifth substrate portion 50; the fifth substrate portion 50 contains the thermal conductivity enhancing material; the fourth substrate portion 40 does not contain the thermal conductivity enhancing material, or the fourth substrate portion 40 contains the thermal conductivity enhancing material, and the proportion of the thermal conductivity enhancing material in the fourth substrate portion 40 is less than the proportion of the thermal conductivity enhancing material in the fifth substrate portion, so that the thermal conductivity of the fifth substrate portion 50 is higher than the thermal conductivity of the fourth substrate portion 40.

[0049] When the aerosol-generating article 1000 is circumferentially heated, the fifth substrate portion 50 is heated first due to its higher thermal conductivity, which facilitates rapid smoke generation. That is, the user's waiting time is shortened, and a certain amount of smoke can be quickly inhaled in the first puff. Subsequently, the fourth substrate portion 40 with a lower thermal conductivity is also heated to generate aerosol, which facilitates improved puff-by-puff consistency.

[0050] In one embodiment, please continue to refer to Figure 3 The fifth substrate portion 50 includes a first section 52 and a second section 54, wherein the filling materials of the first section 52 are all composite materials formed by a metal material and a smoke-generating material, and the filling materials of the second section 54 include both a separate smoke-generating material and a composite material formed by a metal material and a smoke-generating material. Therefore, the thermal conductivity of the first section 52 is higher than that of the second section 54. The fourth substrate portion 40 does not include a thermal conductivity enhancing material and has the lowest thermal conductivity.

[0051] Therefore, the thermal conductivity of the first section 52, the second section 54, and the fourth substrate portion 40 of the aerosol generating article 1000 gradually decreases from the near-mouth end of the aerosol generating article 1000 to the far-mouth end of the aerosol generating article 1000, which can reduce the span of the thermal conductivity between the first section 52, the second section 54, and the fourth substrate portion 40, making the smoke generation more uniform and further improving the puff-by-puff consistency.

[0052] During use of the aerosol-generating article 1000, because the thermal conductivity of the first section 52 is higher than that of the second section 54 and the fourth substrate portion 40, when the first section 52 is heated, the second section 54 and the fourth substrate portion 40 remain in a heat-insulating state. This allows the first section 52 to produce smoke the fastest, while the second section 54 and the fourth substrate portion 40, due to their lower thermal conductivity than the first section 52, consume less material. The second section 54 is then heated to produce smoke, and finally the fourth substrate portion 40 is heated. This process continues in this manner, thereby increasing the smoke production rate and improving subsequent puff consistency.

[0053] In some embodiments, the aerosol generating article 1000 further includes a wrapping piece wrapped around the periphery of the substrate portion, and the wrapping pieces around the periphery of each substrate portion have different air permeabilities. In one embodiment, the air permeability of the wrapping piece is set corresponding to the thermal conductivity of the substrate portion. The higher the thermal conductivity of the substrate portion, the higher the air permeability of the corresponding wrapping piece, and the lower the thermal conductivity of the substrate portion, the lower the air permeability of the corresponding wrapping piece. For example, the air permeability of the wrapping piece can be adjusted by adjusting the porosity of the wrapping piece. The smaller the porosity of the wrapping piece, the lower its air permeability, and the larger the porosity of the wrapping piece, the higher its air permeability. Wherein, the wrapping piece can be, for example, wrapping paper, and the wrapping paper can be a porous packaging material or a non-porous packaging material. The air permeability of the porous packaging material is higher than that of the non-porous packaging material.

[0054] The substrate part of the aerosol generating article 1000 includes multiple segments, and the air permeability of the wrapper outside each segment of the substrate part is different. From the proximal end to the distal end of the aerosol generating article 1000, the air permeability of the wrapper of adjacent segments of the substrate part gradually decreases, so that in the direction from the proximal end of the aerosol generating article 1000 to the distal end of the aerosol generating article 1000, the air permeability of the wrapper around each substrate part gradually decreases. Thus, when the aerosol generating article 1000 is heated, the substrate part at the proximal end is heated first, and then the adjacent substrate parts towards the distal end are heated in sequence.

[0055] Each substrate part can be heated together by the same heating element. Due to the different thermal conductivities of each substrate part, the substrate part close to the proximal end will be heated first and emit smoke relatively quickly, and the substrate parts towards the distal end are heated in sequence and emit smoke relatively slowly. Each substrate part can also be heated by different heating elements, and each substrate part corresponds to a different heating element. The heating element corresponding to the substrate part at the proximal end is heated first, and then the heating elements corresponding to the adjacent substrate parts towards the distal end are heated in sequence.

[0056] The air permeability of the wrapper around the substrate part also affects the thermal conductivity of the substrate part. The higher the air permeability of the wrapper, the higher the thermal conductivity; the lower the air permeability of the wrapper, the lower the thermal conductivity. By setting the air permeability of the wrapper of the substrate part to gradually decrease in the direction from the proximal end of the aerosol generating article 1000 to the distal end of the aerosol generating article 1000, it can be further ensured that the thermal conductivity of the substrate part gradually decreases in this direction.

[0057] Please refer to Figures 1 to 3 , the aerosol generating article 1000 may further include a cooling section 200 and a filtering section 300.

[0058] Among them, the cooling section 200 is used to maintain the structure of the heat-not-burn cartridge, and even adsorb and filter the aerosol gas generated by the aerosol generating substrate section 100 of the heat-not-burn cartridge, and cool the aerosol gas generated by the aerosol generating substrate section 100 so that the aerosol gas generated by the aerosol generating substrate section 100 meets the absorption requirements. The cooling section 200 can be an empty tube or other perforated tubular components.

[0059] The filtering section 300 is used to filter the aerosol gas and further cool it or filter and adsorb harmful substances. The material of the filtering section 300 can be, for example, one or more of a cellulose acetate rod, a polypropylene fiber rod (propylene fiber rod), a polylactic acid rod, and a paper filter rod.

[0060] The present application also provides an aerosol generating system 400. Please refer to Figure 4 , which includes the above-mentioned aerosol generating article 1000 and a matching heating appliance 410.

[0061] In one embodiment, see Figure 4 The heating device 410 includes a receiving groove 420 and a heating component 430 disposed around the receiving groove 420. In other embodiments, the heating method of the heating device 410 can also be hot air heating, central heating, etc.

[0062] In one embodiment, the heating device 410 is configured to heat the substrate portions of the aerosol-generating article 1000 sequentially in order of thermal conductivity from high to low.

[0063] In one embodiment, the heating assembly 430 includes a plurality of heating elements, which are arranged along the axial direction of the heating device 410. The plurality of heating elements are respectively arranged corresponding to each substrate portion of the aerosol generating article 1000 to perform segmented heating on different substrate portions.

[0064] The aerosol generating system provided in the present application generates aerosol quickly, and the aerosol has good consistency from mouth to mouth.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

[0066] Furthermore, those skilled in the art will appreciate that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of this application and to form distinct embodiments. For example, in the claims above, any of the claimed embodiments may be used in any combination. The information disclosed in this background section is intended solely to enhance understanding of the overall background of this application and should not be construed as an admission or any implication that such information constitutes prior art known to those skilled in the art.

Claims

1. An aerosol-generating article, characterized in that, Comprising an aerosol - forming substrate section; The aerosol - forming substrate section includes at least two substrate parts for generating aerosol with different thermal conductivities, and the substrate parts include fumed materials.

2. The aerosol-generating article according to claim 1, wherein, The fumed materials of each of the substrate parts have different degrees of order.

3. The aerosol-generating article according to claim 2, wherein, The substrate parts include a first substrate part and a second substrate part; the fumed material filled in the first substrate part is in a disordered arrangement; the fumed material filled in the second substrate part is in an ordered arrangement.

4. The aerosol-generating article according to claim 3, wherein, The substrate part further includes a third substrate part, and in the fumed material filled in the third substrate part, part is in a disordered arrangement and part is in an ordered arrangement.

5. The aerosol-generating article according to claim 1, wherein, At least part of the substrate parts further includes a thermal - conductivity enhancing material; The ratios of the fumed materials to the thermal - conductivity enhancing materials in each substrate part are different from each other.

6. The aerosol-generating article according to claim 5, wherein, The thermal - conductivity enhancing material is a metal material, and the metal material is uniformly distributed in the fumed material; Or, the thermal - conductivity enhancing material and the fumed material are combined to form an integral body.

7. The aerosol-generating article according to claim 6, wherein The fumed material is cut tobacco, and the cut tobacco and the thermal - conductivity enhancing material are combined to form a fumed - material monomer, and any one of the fumed - material monomers is filamentous, sheet - shaped, spherical, cylindrical or granular.

8. The aerosol-generating article according to any one of claims 1-7, characterized in that, The aerosol - generating article has a mouth - end and a distal - end. Each of the substrate parts is arranged in sequence along the axial direction of the aerosol - generating article; In the direction from near the mouth - end to near the distal - end, the thermal conductivities of each of the substrate parts gradually decrease.

9. The aerosol-generating article according to claim 8, wherein, The aerosol - generating article further includes a wrapper wrapped around the outer periphery of the substrate part, and the wrappers on the outer peripheries of each of the substrate parts have different air permeabilities; In the direction from near the mouth - end to near the distal - end, the air permeabilities of the wrappers on the outer peripheries of each of the substrate parts gradually decrease.

10. An aerosol generating system, characterized in that, Comprising the aerosol - generating article according to any one of claims 1 to 9 and a compatible heating appliance.

11. The aerosol generating system according to claim 10, wherein, The heating appliance is configured to heat each of the substrate parts of the aerosol - generating article in sequence according to the order of decreasing thermal conductivity.

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