Aerosol-generating article, aerosol-generating system
By setting substrates with different thermal conductivity in aerosol-generated products and optimizing the heating sequence and the air permeability of the packaging, the problems of slow smoke generation and poor consistency of each puff under circumferential heating were solved, achieving rapid smoke generation and stable smoke volume.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-13
- Publication Date
- 2026-03-13
AI Technical Summary
Existing aerosol-generated products use circumferential heating, resulting in slow smoke generation and poor consistency from one batch to another.
The aerosol generation substrate section is designed to include at least two substrate sections with different thermal conductivity. The substrate section with high thermal conductivity is heated first and generates smoke quickly, while the substrate section with low thermal conductivity generates smoke subsequently. By adjusting the arrangement of the smoke-generating materials and the proportion of thermally conductive reinforcing materials, the heating sequence and the air permeability of the package are optimized, thereby improving the consistency of each package.
It achieves rapid smoke generation of aerosol products, and the amount of smoke can be inhaled from the first puff. The overall consistency of each puff is good, and the amount of smoke changes stably.
Smart Images
Figure CN121647412A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of aerosol generation technology, and in particular to an aerosol generation product and an aerosol generation system. Background Technology
[0002] In heated non-combustible aerosol generation technology, circumferential heating is often adopted. The aerosol product is contained in the receiving cavity of the heating device, and heating elements are arranged around the periphery of the receiving cavity. The heating elements heat the aerosol product from the periphery, which can maximize the heating area of the aerosol product and improve the utilization rate of the smoke-generating material in the aerosol product. It has the advantages of large smoke volume and easy maintenance and cleaning, but it has the drawbacks of slow smoke generation and poor consistency of each puff. Summary of the Invention
[0003] The purpose of this application is to provide an aerosol generating product and an aerosol generating system, which aims to solve the problems of slow smoke generation and poor consistency of each puff when using circumferential heating in existing aerosol generating products.
[0004] To achieve the above objectives, this application provides an aerosol generating article, including an aerosol generating substrate segment;
[0005] The aerosol generating substrate segment includes at least two substrate sections with different thermal conductivity for generating aerosols, and the substrate sections include smoke-generating materials.
[0006] In some embodiments, the smoke-generating material of each of the substrate portions has a different degree of order.
[0007] In some embodiments, the substrate portion includes a first substrate portion and a second substrate portion; the smoke-generating material filling the first substrate portion is arranged in a disordered manner; and the smoke-generating material filling the second substrate portion is arranged in an ordered manner.
[0008] In some embodiments, the substrate portion further includes a third substrate portion, in which the smoke-generating material is filled, is partially arranged randomly and partially arranged in an ordered manner.
[0009] In some embodiments, at least a portion of the substrate portion further includes a thermally conductive reinforcing material;
[0010] The ratio of the smoke-generating material to the thermally conductive reinforcing material is different in each of the substrate portions.
[0011] In some embodiments, the aerosol generating substrate segment includes a fourth substrate portion and a fifth substrate portion;
[0012] The fifth substrate portion includes the thermally conductive reinforcing material;
[0013] The fourth substrate portion does not contain the thermally conductive reinforcing material, or the fourth substrate portion contains the thermally conductive reinforcing material, wherein the proportion of the thermally conductive reinforcing material in the fourth substrate portion is less than the proportion of the thermally conductive reinforcing material in the fifth substrate portion.
[0014] In some embodiments, the thermally conductive reinforcing material is a metallic material, and the metallic material is uniformly distributed within the smoke-generating material;
[0015] Alternatively, the thermally conductive reinforcing material may be combined with the smoke-generating material to form a whole.
[0016] In some embodiments, the smoking material is tobacco shreds, which are combined with the thermally conductive reinforcing material to form a smoking material monomer. Any one of the smoking material monomers is filamentous, sheet-like, spherical, cylindrical, or granular.
[0017] In some embodiments, the aerosol-generating article has a near-mouth end and a far-mouth end.
[0018] Each of the aforementioned substrate portions is arranged sequentially along the axial direction of the aerosol-generated article;
[0019] The thermal conductivity of each of the substrate portions gradually decreases from the direction closest to the proximal end to the distal end.
[0020] In some embodiments, the aerosol generating article further includes a wrapping element surrounding the outer periphery of the substrate portion, wherein each wrapping element surrounding the substrate portion has a different air permeability.
[0021] From the direction closer to the proximal end to the distal end, the air permeability of the wrapping material on the outer periphery of each of the substrate portions gradually decreases.
[0022] This application also provides an aerosol generation system, including the above-described aerosol generation article and a suitable heating appliance.
[0023] In some embodiments, the heating device is configured to sequentially heat each of the substrate portions of the aerosol-generating article in order of decreasing thermal conductivity.
[0024] Compared with related technologies, the beneficial effects of this application include:
[0025] The aerosol generating article provided in this application includes at least two substrate sections with different thermal conductivity for generating aerosols in the aerosol generating substrate section. When the aerosol generating article is used, the smoke-generating material of the substrate section with high thermal conductivity is heated first, so that it quickly produces smoke, shortens the user's waiting time, and allows the user to quickly inhale a certain amount of smoke on the first puff; while the smoke-generating material of the substrate section with low thermal conductivity produces smoke later, which helps to improve the overall consistency of the aerosol generating article from puff to puff.
[0026] The aerosol generation system provided in this application generates aerosols quickly and with good consistency from one aerosol to another. Attached Figure Description
[0027] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation on the scope of this application.
[0028] Figure 1 This is a schematic diagram of the structure of an aerosol-generated product according to an embodiment;
[0029] Figure 2 A schematic diagram of the structure of an aerosol-generated article according to another embodiment;
[0030] Figure 3 This is a schematic diagram of the structure of an aerosol-generated article according to yet another embodiment;
[0031] Figure 4 This is a schematic diagram of the aerosol generation system.
[0032] Figure label:
[0033] 1000 - Aerosol generating article; 100 - Aerosol generating substrate section; 10 - First substrate section; 20 - Second substrate section; 30 - Third substrate section; 40 - Fourth substrate section; 50 - Fifth substrate section; 52 - First section; 54 - Second section; 200 - Cooling section; 300 - Filtration section; 400 - Aerosol generating system; 410 - Heating device; 420 - Receiving tank; 430 - Heating component. Detailed Implementation
[0034] This application provides an aerosol generating article 1000, which may be, for example, a heat-not-burn tobacco cartridge. Please refer to [link / reference needed]. Figure 1 The aerosol generating substrate segment 100 includes at least two substrate portions with different thermal conductivity for generating aerosols, the substrate portions including smoke-generating materials.
[0035] In one embodiment, the smoke-generating material can be a tobacco raw material, a non-tobacco raw material, or a combination of both. In one embodiment, the non-tobacco raw material can be a smoke-generating agent, selected from glycerol, propylene glycol, glycerol, triacetin, or diacetin. In one embodiment, the non-tobacco raw material can also be tea leaves, dried tangerine peel, dried plum, sweet potato, licorice, chrysanthemum, etc. Additionally, the aerosol generating substrate segment 100 can also include flavorings and fragrances. The smoke-generating material of the aerosol generating substrate segment 100 can be a granular smoke-generating material, a filamentous smoke-generating material, or a sheet-type smoke-generating material. The preparation method for the sheet-type smoke-generating material can be a slurry method, a papermaking method, a dry papermaking method, or a rolling method, etc.
[0036] The circumferential heating method of the related technology heats the smoke-generating material from the circumference, and there is a wrapping material between the smoke-generating material and the heating component, so the smoke-generating material does not directly contact the smoke-generating material. Smoke generation is slow, but the heating area is large. After reaching the heat required for smoke generation, smoke generation is completed in a short time. However, the smoke generation is slow but the consumption is fast. As a result, the overall consistency of the aerosol-generated product is poor throughout the entire suction process.
[0037] To address this technical problem, this application configures the aerosol generating substrate segment 100 to include at least two substrate sections with different thermal conductivity for generating aerosols. When the aerosol generating product is in use, the smoke-generating material of the substrate section with high thermal conductivity is heated first, causing it to generate smoke quickly, shortening the user's waiting time, and allowing a certain amount of smoke to be quickly inhaled on the first puff; while the smoke-generating material of the substrate section with low thermal conductivity is heated subsequently, generating smoke later, which helps to improve the overall consistency of the aerosol generating product from puff to puff.
[0038] The substrate can consist of two, three, four, or more components, each with a different thermal conductivity. These substrates can be arranged randomly or sequentially according to their thermal conductivity. For example, they can be arranged from the near-mouth end of the aerosol generating product 1000 to the far-mouth end, with thermal conductivity decreasing gradually. Alternatively, they can be arranged from the near-mouth end to the far-mouth end, with thermal conductivity increasing gradually. Arranging them sequentially from high to low thermal conductivity is preferable, as the substrates with higher thermal conductivity near the near-mouth end are heated first, allowing for faster smoke extraction.
[0039] In some embodiments, the thermal conductivity of the substrate portion can be adjusted by regulating the porosity and permeability of the smoke-generating material. Higher porosity and permeability result in higher thermal conductivity, while lower porosity and permeability result in lower thermal conductivity. For example, the porosity and permeability of irregularly filled smoke-generating materials are higher than those of regularly filled smoke-generating materials. Therefore, the smoke-generating materials of each substrate portion can be configured to have different degrees of order to obtain substrate portions with different thermal conductivity.
[0040] Please see Figure 1 The substrate portion includes a first substrate portion 10 and a second substrate portion 20; the smoke-generating material filled in the first substrate portion 10 is arranged in a disordered manner; the smoke-generating material filled in the second substrate portion 20 is arranged in an ordered manner. Therefore, the thermal conductivity of the first substrate portion 10 is higher than that of the second substrate portion 20.
[0041] Since the first substrate portion 10 is located near the proximal end of the aerosol generating article 1000, the first substrate portion 10 is located downstream of the second substrate portion 20 in the aerosol suction direction. The upstream of the aerosol suction direction refers to the distal end of the aerosol generating article 1000, and the downstream of the aerosol suction direction refers to the proximal end of the aerosol generating article 1000.
[0042] The first substrate portion 10 is located downstream of the second substrate portion 20 in the aerosol suction direction, and the thermal conductivity of the first substrate portion 10 is higher than that of the second substrate portion 20. When the aerosol generating product 1000 is circumferentially heated, the first substrate portion 10 is heated first due to its higher thermal conductivity, which facilitates rapid smoke generation. This means that the user's waiting time is shortened, and a certain amount of smoke can be quickly inhaled on the first puff. Subsequently, the second substrate portion 20, which has lower thermal conductivity, is also heated to generate aerosol, which helps improve the overall consistency of the aerosol generating product 1000 from puff to puff. Typically, an aerosol generating product is inhaled for about 13 puffs. "Consistency from puff to puff" means that the amount of smoke between adjacent puffs changes smoothly without sudden increases or decreases.
[0043] In one embodiment, the smoking material is shredded tobacco. When the aerosol-generated product 1000 is used, because the disordered tobacco has better thermal conductivity, the tobacco in the first substrate 10 smokes first. In the first half of the inhalation, the disordered tobacco in the first substrate 10 is mainly heated to produce smoke. During the inhalation, the ordered tobacco in the second substrate 20 has sufficient heat to produce smoke. The ordered tobacco has lower thermal conductivity than the disordered tobacco, so less material is consumed from the ordered tobacco in the first half of the inhalation, and the disordered tobacco in the first substrate 10 is mainly used for smoking. In the second half of the inhalation, the ordered tobacco in the second substrate 20 is mainly used for smoking, which is beneficial for improving the consistency of each subsequent puff.
[0044] Please see Figure 2The substrate portion further includes a third substrate portion 30, which is filled with the smoke-generating material in the third substrate portion 30. The material is partially arranged randomly and partially arranged in an ordered manner. Therefore, the thermal conductivity of the third substrate portion 30 is lower than that of the first substrate portion 10 and higher than that of the second substrate portion 20.
[0045] By providing a third substrate 30 with a thermal conductivity in the middle between the first substrate 10 and the second substrate 20, the span of thermal conductivity between the first substrate 10, the third substrate 30 and the second substrate 20 can be reduced, making the flue gas generation more uniform and further improving the consistency from one outlet to another.
[0046] In some embodiments, the thermal conductivity of the substrate portion can also be controlled by adjusting the composition of the smoking material. For example, a thermally conductive reinforcing material, such as a metal material, can be added to the smoking material. Since the thermal conductivity of the metal material is higher than that of the smoking material, the proportion of the metal material added to different substrate portions is different, thereby obtaining substrate portions with different thermal conductivity. The ratio of the smoking material to the thermally conductive reinforcing material in each substrate portion is different. The ratio of the smoking material to the thermally conductive reinforcing material can be a mass ratio or a volume ratio. The higher the proportion of the thermally conductive reinforcing material, the higher the thermal conductivity of the corresponding substrate portion.
[0047] The metal material is food-grade, including but not limited to food-grade stainless steel, silver, copper, gold, aluminum, tungsten, iron, platinum, and titanium. The metal material can be added alone to the smoke-generating material in the substrate, ensuring uniform distribution within the smoke-generating material. Alternatively, the metal material can be composited with the smoke-generating material and added as a whole to the substrate. Preferably, the composite of the metal material and the smoke-generating material, added as a whole, improves the uniformity of contact between the metal material and the smoke-generating material, thus enhancing thermal conductivity. The smoke-generating material can be tobacco shreds, which are combined with the metal material to form smoke-generating material monomers. These monomers can be any shape—filamentous, sheet-like, spherical, cylindrical, or granular—meaning the smoke-generating material can contain only one shape of monomer or multiple shapes. The smoke-generating material and the metal material can be physically combined, such as through lamination or adhesion.
[0048] In some embodiments, please refer to 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 includes the thermally conductive reinforcing material; the fourth substrate portion 40 does not include the thermally conductive reinforcing material, or the fourth substrate portion 40 includes the thermally conductive reinforcing material, and the proportion of the thermally conductive reinforcing material in the fourth substrate portion 40 is less than the proportion of the thermally conductive reinforcing material in the fifth substrate portion, thereby the thermal conductivity of the fifth substrate portion 50 is higher than that of the fourth substrate portion 40.
[0049] When the aerosol generating product 1000 is heated circumferentially, the fifth substrate part 50 is heated first because it has a higher thermal conductivity, which is conducive to rapid smoke generation. This means that the user's waiting time is shortened and a certain amount of smoke can be quickly inhaled on the first puff. Subsequently, the fourth substrate part 40, which has a lower thermal conductivity, is also heated to generate aerosol, which helps to improve the consistency of each puff.
[0050] In one embodiment, please continue to refer to Figure 3 The fifth substrate portion 50 includes a first segment 52 and a second segment 54. The filling material of the first segment 52 is a composite material formed by combining metal materials and smoke-generating materials. The filling material of the second segment 54 includes both a single smoke-generating material and a composite material formed by combining metal materials and smoke-generating materials. Therefore, the thermal conductivity of the first segment 52 is higher than that of the second segment 54. The fourth substrate portion 40 does not contain thermally conductive reinforcing materials and has the lowest thermal conductivity.
[0051] Thus, the thermal conductivity of the first segment 52, the second segment 54, and the fourth substrate portion 40 gradually decreases from the near end of the aerosol generating article 1000 to the far end of the aerosol generating article 1000. This can reduce the span of thermal conductivity between the first segment 52, the second segment 54, and the fourth substrate portion 40, making the flue gas generation more uniform and further improving the consistency of each puff.
[0052] When the aerosol generating product 1000 is in use, because the thermal conductivity of the first section 52 is higher than that of the second section 54, which in turn is higher than that of the fourth substrate 40, when the first section 52 is heated, the second section 54 and the fourth substrate 40 are kept warm. The first section 52 can produce smoke the fastest, while the second section 54 and the fourth substrate 40, due to their lower thermal conductivity, consume less material. The second section 54 is then heated to produce smoke, and finally the fourth substrate 40 is heated. This process continues, increasing the smoke generation rate and improving the consistency of subsequent puffs.
[0053] In some embodiments, the aerosol generating article 1000 further includes a wrapping element surrounding the outer periphery of the substrate portion, and each wrapping element surrounding the substrate portion has a different air permeability. In one embodiment, the air permeability of the wrapping element is set in correspondence with the thermal conductivity of the substrate portion; the higher the thermal conductivity of the substrate portion, the higher the air permeability of the wrapping element, and vice versa. For example, the air permeability of the wrapping element can be adjusted by adjusting its porosity; the smaller the porosity of the wrapping element, the lower its air permeability, and vice versa. The wrapping element can be, for example, packaging paper, which can be a porous packaging material or a non-porous packaging material. The air permeability of porous packaging materials is higher than that of non-porous packaging materials.
[0054] The substrate portion of the aerosol generating article 1000 includes multiple segments, and the permeability of the wrapping material outside each segment of the substrate portion is different. From the proximal end to the distal end of the aerosol generating article 1000, the permeability of the wrapping material of adjacent segments of the substrate portion gradually decreases. Thus, from the proximal end of the aerosol generating article 1000 to the distal end of the aerosol generating article 1000, the permeability of the wrapping material around each substrate portion gradually decreases. Therefore, when the aerosol generating article 1000 is heated, the substrate portion near the proximal end is heated first, and then the adjacent substrate portions at the distal end are heated sequentially.
[0055] Each substrate section can be heated together by the same heating element. Due to the different thermal conductivity of each substrate section, the substrate section near the mouth end will be heated first and produce smoke faster, while the substrate sections towards the far mouth end will be heated sequentially and produce smoke relatively slowly. Alternatively, each substrate section can be heated by different heating elements, with each substrate section corresponding to a different heating element. The heating element corresponding to the substrate section near the mouth end will heat first, followed by the heating elements corresponding to the adjacent substrate sections towards the far mouth end.
[0056] The permeability of the wrapping material around the substrate also affects the thermal conductivity of the substrate. The higher the permeability of the wrapping material, the higher the thermal conductivity, and the lower the permeability of the wrapping material, the lower the thermal conductivity. By setting the permeability of the wrapping material of the substrate to gradually decrease from the near-mouth end close to the aerosol generating article 1000 to the far-mouth end close to the aerosol generating article 1000, it is possible to further ensure that the thermal conductivity of the substrate gradually decreases in this direction.
[0057] Please see Figures 1 to 3 The aerosol generating product 1000 may also include a cooling section 200 and a filtration section 300.
[0058] The cooling section 200 is used to maintain the structure of the heated non-combustible tobacco cartridge, and even to adsorb and filter the aerosol gas generated by the aerosol generating substrate section 100 of the heated non-combustible tobacco cartridge, and to 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 element.
[0059] The filter section 300 is used to filter aerosol gases and further cool or filter and adsorb harmful substances. The material of the filter section 300 can be one or more of the following: acetate rods, polypropylene rods, polylactic acid rods, and paper filter rods.
[0060] This application also provides an aerosol generation system 400, please refer to [link / reference]. Figure 4 This includes the aforementioned aerosol generating product 1000 and the suitable heating appliance 410.
[0061] In one embodiment, please refer to Figure 4 The heating appliance 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 appliance 410 may also be hot air heating, center heating, etc.
[0062] In one embodiment, the heating device 410 is configured to sequentially heat each substrate portion of the aerosol generating article 1000 in order of decreasing thermal conductivity.
[0063] In one embodiment, the heating assembly 430 includes a plurality of heating elements arranged along the axial direction of the heating appliance 410. The plurality of heating elements are respectively arranged corresponding to each substrate portion of the aerosol generating article 1000, so as to perform segmented heating on different substrate portions.
[0064] The aerosol generation system provided in this application generates aerosols quickly and with good consistency from one aerosol to another.
[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.
[0066] Furthermore, those skilled in the art will understand 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 form different embodiments. For example, in the foregoing claims, any of the claimed embodiments can be used in any combination. The information disclosed in this background section is intended only to enhance the understanding of the general background of this application and should not be construed as an admission or in any way implying that such information constitutes prior art known to those skilled in the art.
Claims
1. An aerosol-generating product, characterized in that, Includes the aerosol generation substrate segment; The aerosol generating substrate segment includes at least two substrate sections with different thermal conductivity for generating aerosols, and the substrate sections include smoke-generating materials.
2. The aerosol-generating product according to claim 1, characterized in that, The smoke-generating materials in each of the substrate portions have different degrees of order.
3. The aerosol-generating product according to claim 2, characterized in that, The substrate portion includes a first substrate portion and a second substrate portion; the smoke-generating material filling the first substrate portion is arranged in a disordered manner; the smoke-generating material filling the second substrate portion is arranged in an ordered manner.
4. The aerosol-generating product according to claim 3, characterized in that, The substrate portion further includes a third substrate portion, in which the smoke-generating material is filled, partly arranged randomly and partly arranged in an ordered manner.
5. The aerosol-generating product according to claim 1, characterized in that, At least a portion of the substrate portion also includes a thermally conductive reinforcing material; The ratio of the smoke-generating material to the thermally conductive reinforcing material is different in each of the substrate portions.
6. The aerosol-generating product according to claim 5, characterized in that, The thermally conductive reinforcing material is a metallic material, and the metallic material is uniformly distributed within the smoke-generating material. Alternatively, the thermally conductive reinforcing material may be combined with the smoke-generating material to form a whole.
7. The aerosol-generating product according to claim 6, characterized in that, The smoking material is tobacco shreds, which are combined with the thermally conductive reinforcing material to form a smoking material monomer. Any one of the smoking material monomers is filamentous, sheet-like, spherical, cylindrical, or granular.
8. The aerosol-generating article according to any one of claims 1-7, characterized in that, The aerosol-generating product has a near-mouth end and a far-mouth end. Each of the aforementioned substrate portions is arranged sequentially along the axial direction of the aerosol-generated article; The thermal conductivity of each of the substrate portions gradually decreases from the direction closest to the proximal end to the distal end.
9. The aerosol-generating product according to claim 8, characterized in that, The aerosol-generating article also includes a wrapping component surrounding the outer periphery of the substrate portion, and each wrapping component surrounding the outer periphery of the substrate portion has a different air permeability. From the direction closer to the proximal end to the distal end, the air permeability of the wrapping material on the outer periphery of each of the substrate portions gradually decreases.
10. An aerosol generation system, characterized in that, Includes the aerosol generating articles and suitable heating appliances as described in any one of claims 1 to 9.
11. The aerosol generation system according to claim 10, characterized in that, The heating device is configured to sequentially heat each of the substrate portions of the aerosol-generated article in order of decreasing thermal conductivity.