Aerosol generating article and aerosol generating system

Abstract

An aerosol generating article (10) and an aerosol generating system (100). The aerosol generating article (10) comprises a first functional section (12), a substrate section (11), and a second functional section (13) that are sequentially arranged; the first functional section (12) is located at the end of the substrate section (11) away from a lip, and the second functional section (13) is located at the end of the substrate section (11) near the lip; the draw resistance of the aerosol generating article (10) is greater than or equal to 20 mmWG and less than or equal to 50 mmWG; the draw resistance of the substrate section (11) is greater than 0 and less than or equal to 5 mmWG. The present disclosure is conducive to uniformly generating aerosol at the substrate section (11) and reducing the unstable output of the aerosol, so that the aerosol is uniformly and stably released, and the intake air from the first functional section (12) can smoothly enter the substrate section (11). By setting the draw resistance of the aerosol generating article (10) to be greater than or equal to 20 mmWG and less than or equal to 50 mmWG, the present disclosure is conducive to bringing out the aerosol generated by the substrate section (11), thereby achieving a high aerosol delivery rate and a large amount of aerosol, and improving vaping experience and use comfort.

Description

Aerosol generating products and aerosol generating systems

[0001] Cross-references to related applications

[0002] This disclosure is based on and claims priority to patent applications No. 202411844283.8, filed on December 13, 2024, and No. 202511151089.6, filed on August 15, 2025, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This disclosure relates to the field of smoke-generating products, and in particular to an aerosol-generating product and an aerosol-generating system. Background Technology

[0004] Aerosol generating articles can form aerosols by ignition or by heating without combustion (HNB). In HNB aerosol generating articles, the aerosol generating article is heated by an external heat source to a level sufficient to release aerosols. The aerosol generating article does not burn; instead, it is loaded with a smoke-generating agent. During use, the aerosol generating article is heated to release the smoke-generating agent and form an aerosol.

[0005] In existing aerosol generation systems, the inhalation experience and user comfort are among the key performance indicators. Therefore, improving these aspects is a focus of industry research. Summary of the Invention

[0006] To address the aforementioned technical problems, this disclosure provides an aerosol generating article that improves the inhalation experience and user comfort, as well as an aerosol generating system including the aerosol generating article.

[0007] The embodiments disclosed herein are implemented through the following technical solutions.

[0008] A first aspect of this disclosure provides an aerosol generating article, comprising a first functional segment, a matrix segment, and a second functional segment arranged sequentially.

[0009] The first functional segment is located at the distal lip of the matrix segment.

[0010] The second functional segment is located near the lip end of the matrix segment.

[0011] The aerosol-generated product has a suction resistance greater than or equal to 20 mm water column and less than or equal to 50 mm water column.

[0012] The absorption resistance of the matrix segment is greater than 0 and less than or equal to 5 mm of water column.

[0013] In one embodiment, at least one of the suction resistance of the first functional segment and the suction resistance of the matrix segment is less than the suction resistance of the second functional segment.

[0014] In one embodiment, the absorption resistance of the matrix segment is less than or equal to the absorption resistance of the first functional segment.

[0015] In one embodiment, the matrix segment is constructed by winding or aggregating an aerosol matrix sheet, the aerosol matrix sheet comprising a sheet-like matrix, the sheet-like matrix being an integral structure, the sheet-like matrix comprising a plurality of parallel matrix strips, at least one connecting region being formed between adjacent matrix strips, the connecting region connecting adjacent matrix strips, and the aerosol matrix sheet being heatable to generate aerosol.

[0016] In one embodiment, the tensile strength of the sheet-like matrix along the length of the matrix strip is greater than or equal to 300 N / m.

[0017] In one embodiment, the length of the substrate strip is in the range of 8 mm to 20 mm.

[0018] In one embodiment, the matrix strip includes an aerosol forming agent, the weight of which is in the range of 15% to 30% based on the dry weight of the matrix strip.

[0019] In one embodiment, the density of the matrix strip is greater than or equal to 1000 mg / cm3 and less than or equal to 1500 mg / cm3.

[0020] In one embodiment, the equivalent diameter of the matrix strip is in the range of 0.5 mm to 2.5 mm.

[0021] In one embodiment, at least one airflow channel is formed between at least a portion of the matrix strips within the matrix segment, and the airflow channel extends along the length direction of the matrix strip.

[0022] In one embodiment, the porosity of the matrix segment is greater than or equal to 30% and less than or equal to 60%.

[0023] In one embodiment, the suction resistance of the first functional segment is greater than 0 and less than or equal to 5 mm of water column.

[0024] In one embodiment, the suction resistance of the second functional segment is greater than or equal to 10 mm water column and less than or equal to 50 mm water column.

[0025] In one embodiment, the second functional segment includes a hollow tube segment and a filter segment.

[0026] In one embodiment, the first functional segment is a hollow tube.

[0027] In one embodiment, the peripheral sidewall of the second functional segment is provided with at least one air inlet.

[0028] A second aspect of this disclosure provides an aerosol generation system, the aerosol generation system including an aerosol generation device and the aforementioned aerosol generation article, the aerosol generation device including a heating element for heating the aerosol generation article to generate aerosol.

[0029] This disclosure provides an aerosol generating article, comprising a first functional segment, a matrix segment, and a second functional segment arranged sequentially. The matrix segment is used to generate aerosols. By setting the first and second functional segments such that the first functional segment is located at the distal lip end of the matrix segment and the second functional segment is located at the proximal lip end of the matrix segment, that is, the first and second functional segments are respectively located at opposite ends of the matrix segment along the axial direction. The first functional segment can reduce the probability of the matrix segment detaching from the aerosol generating article and can also adjust the suction resistance. The second functional segment can perform functions such as suction resistance adjustment, cooling, support, or filtration for the aerosol generating article. By setting the suction resistance of the matrix segment to be greater than 0 and less than or equal to 5 mm water column, the appropriate suction resistance of the matrix segment within this range is beneficial for the uniform generation of aerosols by the matrix segment, providing the necessary gaps required for the matrix segment to generate aerosols, reducing the instability of aerosol output, and achieving uniform and stable release of aerosols. Furthermore, it allows the air intake of the first functional segment to smoothly enter the matrix segment. Meanwhile, by setting the overall suction resistance of the aerosol generating product to be greater than or equal to 20 mm water column, it is beneficial for the aerosol generated in the matrix section to be carried out. By setting the suction resistance of the aerosol generating product to be less than or equal to 50 mm water column, it is beneficial to reduce the user's suction force, making suction easier, more natural and smoother, reducing suction fatigue, and making it easier for users to maintain continuous suction. It can also further reduce the instability of aerosol output, so as to achieve uniform and stable release of aerosol. Moreover, the suction resistance of the aerosol generating product in this range is highly comfortable. In particular, it can also make the aerosol burst high and the aerosol volume large, improving the suction taste and user comfort. Attached Figure Description

[0030] Figure 1 is a schematic diagram of the structure of an aerosol generation system according to some embodiments of the present disclosure;

[0031] Figure 2 is a schematic diagram of the structure of the aerosol-generated article according to the first embodiment of this disclosure;

[0032] Figure 3 is a schematic diagram of the structure of the aerosol-generated article according to the second embodiment of this disclosure;

[0033] Figure 4 is a schematic diagram of the structure of the sheet-like matrix according to the first embodiment of this disclosure;

[0034] Figure 5 is a schematic diagram of the sheet-like matrix according to the second embodiment of this disclosure;

[0035] Figure 6 is a schematic diagram of the structure of the aerosol-generated article according to the third embodiment of this disclosure.

[0036] Explanation of reference numerals in the attached drawings: 10. Aerosol generating product; 11. Matrix section; 111. Sheet matrix; 112. Matrix strip; 113. Connecting area; 114. Airflow channel; 12. First functional section; 13. Second functional section; 131. Hollow tube section; 1311. Hollow channel; 132. Filter section; 133. Support section; 134. Air inlet; 135. Coating layer; 20. Aerosol generating device; 21. Container chamber; 22. Heating element; 23. Energy supply element; 100. Aerosol generating system. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of this disclosure, and are therefore only examples, and should not be used to limit the scope of protection of this disclosure. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0038] In the description of the embodiments of this disclosure, technical terms such as "first," "second," and "third" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary or secondary relationship of the indicated technical features. In the description of the embodiments of this disclosure, "a plurality of" means two or more, unless otherwise explicitly defined.

[0039] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this disclosure. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0040] In the description of the embodiments of this disclosure, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects are in an "or" relationship.

[0041] In the description of the embodiments of this disclosure, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0042] In the description of the embodiments of this disclosure, unless otherwise expressly specified and limited, the technical term "contact" should be interpreted broadly, and can be direct contact, contact through an intermediate medium layer, contact between two contacting parties with substantially no interaction force, or contact between two contacting parties with interaction force.

[0043] In the description of this disclosure, the orientation or positional relationship of "first direction" is based on the orientation or positional relationship shown in the accompanying drawings. It should be understood that these orientation terms are only for the convenience of describing this disclosure and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure.

[0044] The present disclosure will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0045] This disclosure provides an aerosol generating article 10. Referring to Figures 2 to 3 and Figure 6, the aerosol generating article 10 includes a first functional segment 12, a matrix segment 11, and a second functional segment 13 arranged sequentially. The first functional segment 12 is located at the distal lip end of the matrix segment 11, and the second functional segment 13 is located at the proximal lip end of the matrix segment 11. The aerosol generating article 10 has a draw resistance greater than or equal to 20 mm water column and less than or equal to 50 mm water column. The matrix segment 11 has a draw resistance greater than 0 and less than or equal to 5 mm water column.

[0046] In this embodiment of the disclosure, the aerosol generating article 10 is described as being suitable for suction by heating without combustion.

[0047] This disclosure also provides an aerosol generation system 100. Referring to FIG1, the aerosol generation system 100 includes an aerosol generation article 10 and an aerosol generation device 20 according to any embodiment of this disclosure.

[0048] The aerosol generating product 10 is used in conjunction with the aerosol generating device 20, which is used to heat the aerosol generating product 10.

[0049] Aerosol generating article 10 is used to generate aerosols when heated for users to inhale.

[0050] In this embodiment of the disclosure, the aerosol-generated article 10 is generally cylindrical. The cylindrical shape can be a cylinder (i.e., with a circular cross-section), a prism (i.e., with a polygonal cross-section), an elliptical cylinder (i.e., with an elliptical cross-section), etc., and is not limited thereto.

[0051] Here, the number of aerosol generating products 10 in the aerosol generating device 20 can be one or more.

[0052] In this disclosure, "multiple" refers to two or more items.

[0053] The proximal end refers to the end of the aerosol generating product 10 that is closest to the user when using it, i.e., the end that is inhaled through the mouth. The distal end refers to the end of the aerosol generating product 10 that is furthest from the user when using it. In other words, the two ends of the aerosol generating product 10 along the first direction are the proximal end and the distal end, respectively.

[0054] For example, the second functional segment 13 includes a filtering segment 132.

[0055] For example, the aerosol generated by the heated aerosol generating article 10 can flow through the filter section 132, which can filter out large particulate components and unwanted impurities in the aerosol. That is, the aerosol generated by the heated aerosol generating article 10 is filtered through the filter section 132 and then inhaled by the user.

[0056] For example, the second functional segment 13 also includes a hollow tube segment 131.

[0057] The hollow tube section 131 can cool the flowing aerosol and also provide support for the aerosol-generated product 10.

[0058] The hollow tube section 131 forms a hollow channel 1311 inside, which is beneficial for the aerosol generated by the heating matrix section 11 to flow through the hollow channel 1311 for cooling. After passing through the hollow channel 1311, the aerosol flows through the filter section 132, which filters the aerosol.

[0059] For example, the length of the hollow tube segment 131 is greater than or equal to 15 mm and less than or equal to 20 mm. The length of the hollow tube segment 131 can be any one of 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, and 20 mm, or any value between two of them.

[0060] The length of the hollow tube section 131 within this range can balance the cooling effect and reduce the condensation and retention of aerosols in the hollow tube section 131, thereby improving the aerosol extraction effect.

[0061] The equivalent aperture of the hollow channel 1311 is set to be greater than or equal to 1 mm and less than or equal to 4 mm. Preferably, the equivalent aperture is less than or equal to 3 mm. For example, the equivalent aperture of the hollow channel 1311 can be a point value of any one of 1 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.5 mm, 1.6 mm, 1.7 mm, 1.8 mm, 1.9 mm, 2 mm, 2.1 mm, 2.2 mm, 2.3 mm, 2.5 mm, 2.6 mm, 2.7 mm, 2.8 mm, 2.9 mm, 3 mm, and 4 mm, or a point value between any two. Preferably, the equivalent aperture is less than or equal to 3 mm.

[0062] The equivalent aperture of the hollow channel 1311 is the inner diameter of the hollow channel 1311.

[0063] The inner diameter of the hollow channel 1311 can affect the fluid flow state, while the Reynolds number (Re) is a dimensionless parameter used in fluid mechanics to describe the characteristics of fluid flow. Its core significance lies in quantifying the relative strength of inertial force and viscous force, thereby determining the fluid flow state (laminar or turbulent).

[0064] When Re < 2000, viscous forces dominate, and the fluid flow tends to be laminar; when Re > 2000, inertial forces dominate, and the fluid flow may change to turbulent flow.

[0065] The Nusselt number (Nu) is a dimensionless criterion number in heat transfer that characterizes the intensity of convective heat transfer in a fluid. It is defined as the ratio of the convective heat transfer coefficient to the pure conductive heat transfer coefficient.

[0066] At lower Reynolds numbers, laminar flow is generally dominant; at higher Reynolds numbers, flow tends towards turbulence. Turbulence is caused by differences between local fluid velocities and flow directions. These local velocities and directions may intersect or even be opposite, thus forming eddies.

[0067] Therefore, if the inner diameter of the hollow channel 1311 is too large, the aerosol flow will be laminar (Reynolds number Re less than 2000), and the heat exchange rate with the cooling wall will be low (Nusser number Nu less than or equal to 5). The measured cooling efficiency (temperature drop rate) is only 15℃ / cm–20℃ / cm, which may lead to the aerosol outlet temperature exceeding the standard, affecting the sucking experience. In addition, if the inner diameter of the hollow channel 1311 is too large, the fluid flow speed will be slow, and slow cooling will cause volatile components (such as glycerol and propylene glycol) to condense on the inner wall of the hollow channel 1311 (loss rate greater than or equal to 25%), reducing the density of effective aerosols. Furthermore, it will prolong the residence time of high-temperature aerosols and synergistically exacerbate the formation of harmful substances. Therefore, by setting the equivalent aperture of the hollow channel 1311 to be greater than or equal to 1 mm and less than or equal to 3 mm, the aerosol flow can be made to be turbulent (Reynolds number Re greater than 3000) and have a high heat exchange rate with the cooling wall (Nuser number Nu greater than or equal to 12).

[0068] Please refer to Figures 1 and 3. In an embodiment where the second functional segment 13 includes both a filter segment 132 and a hollow tube segment 131, the hollow tube segment 131 is disposed between the matrix segment 11 and the filter segment 132.

[0069] For example, the aerosol generated by the heated aerosol generating article 10 can first flow through the hollow tube section 131 for cooling. After cooling, the aerosol then flows through the filter section 132, which can filter out large particles and unwanted impurities in the aerosol. That is, the aerosol generated by the heated aerosol generating article 10 is cooled and filtered sequentially through the hollow tube section 131 and the filter section 132 before being drawn in by the user.

[0070] For example, please refer to Figure 2. The second functional segment 13 includes a support segment 133, which can support the aerosol-generated article 10. Of course, the support segment 133 can also cool the flowing aerosol.

[0071] This helps to optimize the suction performance of the aerosol-generated product 10.

[0072] For example, the first functional segment 12 includes a front plug segment.

[0073] For example, the first functional segment 12 is a hollow tube.

[0074] For example, the aerosol generating article 10 includes a front plug section, a matrix section 11, a hollow tube section 131 and a filter section 132 arranged in sequence.

[0075] For example, the aerosol generating article 10 further includes a coating layer 135, which wraps around the outer periphery of the fore plug section, the matrix section 11, the hollow tube section 131 and the filter section 132.

[0076] For example, the material of the wrapping layer 135 is one or more of paper, paper tube, tin foil, aluminum foil, and aluminum foil composite paper.

[0077] For example, the wrapping layer 135 may be bottom-ventilated or bottom-sealed.

[0078] The pre-plug section is located at one end of the matrix section 11 and at the distal lip of the aerosol-generating product 10. On the one hand, during use, the pre-plug section can effectively reduce the probability of the matrix section 11 falling out of the encapsulation layer 135; on the other hand, it can also effectively prevent the aerosol from condensing and flowing downwards and remaining in the receiving chamber 21 of the aerosol generating device 20, thereby causing internal contamination of the receiving chamber 21 and making it difficult to clean, and also preventing cross-contamination of flavors when drawing different flavored aerosol-generating products 10.

[0079] For example, the materials of the pre-plug section include, but are not limited to, paper, non-woven fabric, rubber, polyethylene terephthalate, cellulose acetate, mineral-containing products, cellulose paper filter rods, plant polysaccharides, etc.

[0080] Of course, in other embodiments, the first functional segment 12 and / or the second functional segment 13 may also include a suction resistance adjustment segment.

[0081] For example, the second functional section 13 includes a suction resistance adjustment section. The aerosol generated by the heated aerosol generating product 10 first flows through the suction resistance adjustment section, then flows through the hollow tube section 131 for cooling. After cooling, the aerosol flows through the filtration section 132, which can filter out large particles and unwanted impurities in the aerosol. That is, the aerosol generated by the heated aerosol generating product 10 passes through the suction resistance adjustment section, the hollow tube section 131, and the filtration section 132 in sequence for suction resistance adjustment, cooling, and filtration before being drawn in by the user.

[0082] For example, the first functional segment 12 and / or the second functional segment 13 are columnar with a circular or elliptical cross-section. When the first functional segment 12 and / or the second functional segment 13 contain multiple functional segments with filtering and cooling effects, the longitudinal centers of the first functional segment 12 and / or the second functional segment 13 are coaxially aligned.

[0083] For example, the material of the filter section 132 includes, but is not limited to, cellulose acetate, polyethylene terephthalate, polypropylene fiber, cellulose paper filter rod, recycled tobacco, polylactic acid fiber, resin, plant polysaccharides, etc. The filter section 132 can filter and adsorb aerosols, thereby improving the purity and comfort of aerosols.

[0084] For example, referring to FIG1, the aerosol generating apparatus 20 includes a heating element 22 for heating the aerosol generating article 10 to generate aerosol.

[0085] The heating element 22 can heat the substrate segment 11 in any way. Exemplarily, the heating methods include center heating and peripheral heating. Center heating refers to the heating element being inserted into the substrate segment 11 to bake and heat it from the inside out. Peripheral heating refers to the heating element being positioned around the substrate segment 11 to bake and heat it from the outside in. These heating methods can specifically be at least one of resistance heating, electromagnetic heating, infrared heating, microwave heating, laser heating, etc., and are not specifically limited here.

[0086] Specifically, the aerosol generating device 20 includes a housing and a power supply component disposed within the housing. The housing has a receiving chamber 21. The power output section of the power supply component is disposed within the receiving chamber 21 or around the side wall of the receiving chamber 21. When the portion of the aerosol generating article 10 located in the first direction range is inserted into the receiving chamber 21, the power output section transmits electrical energy to the heating element 22 in a contact or non-contact manner. The heating element 22 receives energy from the outside and generates heat, thereby heating the aerosol generating article 10 and generating aerosol.

[0087] For example, the absorption resistance of the matrix segment 11 and the aerosol-generating article 10 can be tested according to GB / T 22838.5-2024.

[0088] The unit of suction resistance can be millimeters of water column (mmH2O).

[0089] For example, the absorption resistance of the matrix segment 11 can be any one of 0.01 mmH2O, 0.05 mmH2O, 0.1 mmH2O, 0.5 mmH2O, 1 mmH2O, 1.2 mmH2O, 1.5 mmH2O, 2 mmH2O, 2.2 mmH2O, 2.5 mmH2O, 3 mmH2O, 3.3 mmH2O, 3.5 mmH2O, 3.8 mmH2O, 4 mmH2O, 4.5 mmH2O, 4.8 mmH2O, 5 mmH2O, or a value between any two.

[0090] By setting the suction resistance of the matrix section 11 to be greater than 0 and less than or equal to 5 mm water column, the air intake of the first functional section 12 can smoothly enter the matrix section 11, which is also conducive to a more uniform and stable release of aerosols, and facilitates the release, bursting and smooth transport of aerosols.

[0091] For example, the absorption resistance of the aerosol generating article 10 can be any one of 20 mmH2O, 23 mmH2O, 25 mmH2O, 28 mmH2O, 30 mmH2O, 33 mmH2O, 35 mmH2O, 38 mmH2O, 40 mmH2O, 42 mmH2O, 45 mmH2O, 48 mmH2O, or 50 mmH2O, or a value between any two.

[0092] Here, the absorption resistance of the matrix segment 11 constitutes part of the overall absorption resistance of the aerosol-generating article 10.

[0093] It should be noted that the specific composition of matrix segment 11 is not limited here.

[0094] For example, in some embodiments, the matrix segment 11 may include tobacco plants, etc.

[0095] In other embodiments, the raw materials for the matrix segment 11 include protein sources, fiber sources, adhesives, soluble inorganic salts, and inorganic fillers. Specifically, the protein sources include one or more of rice protein, wheat protein, soybean protein, and pea protein; the fiber sources include one or more of bamboo fiber, isatis root fiber, soybean fiber, pea fiber, rice bran fiber, broadleaf fiber, and microcrystalline cellulose; the particle size of the protein sources and fiber sources is 80-120 mesh. The adhesives include one or more of guar gum, xanthan gum, carrageenan, sodium polyacrylate, sodium carboxymethyl cellulose, locust gum, konjac gum, and gellan gum. A mixture of one or more of sodium chloride, potassium carbonate, and sodium carbonate, and a mixture of one or more of sodium dihydrogen phosphate, sodium pyrophosphate, and sodium metaphosphate are used as soluble inorganic salts; a mixture of one or more of light calcium carbonate, heavy calcium carbonate, and alumina is used as an inorganic filler, the particle size of which is 160-200 mesh.

[0096] For example, 8-14 parts of protein source, 20-45 parts of fiber source, 10-20 parts of inorganic filler, and 2-8 parts of adhesive are taken and thoroughly mixed. Separately, 25-35 parts of glycerol, 8-15 parts of propylene glycol, 25-30 parts of fragrance, and 2-5 parts of inorganic salt are dissolved in 10-15 parts of water. The liquid materials are thoroughly mixed, and then the liquid materials are added to the stirred solid materials in a spray form and thoroughly mixed to obtain a matrix slurry. The matrix slurry is extruded to obtain a primary sheet matrix 111 structure of a first thickness. The primary sheet matrix 111 structure is pressed into an aerosol matrix sheet of a second thickness, wherein the first thickness is greater than the second thickness. The aerosol matrix sheet is cut into multiple unbroken matrix strips 112. The cut aerosol matrix sheets are then wound or aggregated.

[0097] This disclosure provides an aerosol generating article 10, including a first functional segment 12, a matrix segment 11, and a second functional segment 13 arranged sequentially. The matrix segment 11 is used to generate aerosols. By setting the first functional segment 12 and the second functional segment 13 such that the first functional segment 12 is located at the distal lip end of the matrix segment 11 and the second functional segment 13 is located at the proximal lip end of the matrix segment 11, that is, the first functional segment 12 and the second functional segment 13 are respectively set at both ends of the matrix segment 11 along the axial direction, which can reduce the probability of the matrix segment 11 falling off from the aerosol generating article 10, and can perform functions such as suction resistance adjustment, cooling, support, or filtration on the aerosol generating article 10. By setting the suction resistance of the matrix section 11 to be greater than 0 and less than or equal to 5 mm water column, the suction resistance of the matrix section 11 within this range is appropriate, which is conducive to the uniform generation of aerosols in the matrix section 11. It provides the necessary gaps required for the generation of aerosols in the matrix section 11, which can reduce the unstable aerosol output, so as to achieve uniform and stable release of aerosols, and also allows the air intake of the first functional section 12 to smoothly enter the matrix section 11. Meanwhile, by setting the suction resistance of the aerosol generating product 10 to be greater than or equal to 20 mm water column, it is beneficial for the aerosol generated in the matrix section 11 to be carried out. By setting the suction resistance of the aerosol generating product 10 to be less than or equal to 50 mm water column, it is beneficial to reduce the user's suction force, making suction easier, more natural and smoother, reducing suction fatigue, and making it easier for the user to maintain continuous suction. This can further reduce the instability of aerosol output, so as to achieve uniform and stable release of aerosol. Moreover, the suction resistance of the aerosol generating product 10 within this range can make the aerosol burst high and the aerosol volume large, improving the suction taste and user comfort.

[0098] In some embodiments, at least one of the suction resistance of the first functional segment 12 and the suction resistance of the matrix segment 11 is less than the suction resistance of the second functional segment 13.

[0099] The absorption resistance of the first functional segment 12 may be less than that of the second functional segment 13, or the absorption resistance of the matrix segment 11 may be less than that of the second functional segment 13, or both the absorption resistance of the first functional segment 12 and the absorption resistance of the matrix segment 11 may be less than that of the second functional segment 13.

[0100] The first functional section 12 is located at the distal lip end of the matrix section 11, that is, the first functional section 12 is equivalent to the main air inlet end of the aerosol generation product 10. Therefore, by setting the suction resistance of the first functional section 12 to be less than that of the second functional section 13, it is beneficial to increase the air intake of the aerosol generation product 10, thereby facilitating the extraction of aerosols.

[0101] By setting the suction resistance of the matrix section 11 to be less than that of the second functional section 13, the air intake of the first functional section 12 can smoothly enter the matrix section 11, which can quickly carry out aerosols and is conducive to the uniform and stable release of aerosols and high burst release.

[0102] In this embodiment, by setting the suction resistance of the first functional segment 12 and the matrix segment 11 to be both lower than that of the second functional segment 13, it is beneficial to increase the air intake of the aerosol generation product 10. This allows the air intake of the first functional segment 12 to smoothly enter the matrix segment 11, facilitating the uniform, stable, and high-burst release of the aerosol. The suction resistance of the second functional segment 13 is relatively larger than that of the first functional segment 12 and the matrix segment 11, which facilitates aerosol extraction, adjusts the user's inhalation experience, and ensures comfort. By having a larger suction resistance in the second functional segment 13 and a smaller suction resistance in the first functional segment 12 and the matrix segment 11, and ensuring an overall suitable suction resistance for the aerosol generation product 10, high-burst and stable aerosol release is guaranteed, while also improving inhalation comfort and increasing user satisfaction.

[0103] In some embodiments, the suction resistance of the matrix segment 11 is less than or equal to the suction resistance of the first functional segment 12.

[0104] It is understandable that by setting the absorption resistance of the matrix segment 11 to be less than or equal to the absorption resistance of the first functional segment 12, it is beneficial to increase the contact area between the matrix segment 11 and the gas, thereby facilitating the generation, release, extraction, and high burst of aerosols. On the other hand, if the absorption resistance of the first functional segment 12 is greater than or equal to the absorption resistance of the matrix segment 11, it can reduce the outflow of aerosols generated by the matrix segment 11 from the first functional segment 12 to a certain extent, thereby facilitating the extraction of aerosols and improving the utilization rate of aerosols.

[0105] In some embodiments, referring to FIG4, the matrix segment 11 is constructed to be formed by winding or aggregating an aerosol matrix sheet. The aerosol matrix sheet includes a sheet matrix 111, which is an integral structure. The sheet matrix 111 includes a plurality of parallel matrix strips 112. At least one connecting region 113 is formed between adjacent matrix strips 112. The connecting region 113 connects adjacent matrix strips 112. The aerosol matrix sheet can be heated to generate aerosol.

[0106] The sheet matrix 111 has an integral structure, which is beneficial to improving the integrity of the sheet matrix 111 and thus improving its stability.

[0107] Referring to Figure 4, the formation of at least one connection region 113 between adjacent matrix strips 112 means that there may be one connection region 113 between adjacent matrix strips 112, or multiple connection regions 113 may be formed, or a portion of the matrix strips 112 may have one connection region 113 between them, while another portion of the matrix strips 112 may have multiple connection regions 113 between them.

[0108] Here, the connecting regions 113 formed between the matrix strips 112 can be the same or different.

[0109] It should be noted that the specific location of the connecting area 113 is not restricted here.

[0110] In an embodiment where a connecting region 113 is formed between adjacent matrix strips 112, the connecting region 113 may be formed at the end, middle, or between the end and middle of the matrix strip 112; in an embodiment where multiple connecting regions 113 are formed between adjacent matrix strips 112, the multiple connecting regions 113 may be uniformly distributed or not uniformly distributed. For example, the sheet matrix 111 is cut into multiple matrix strips 112 by pressing or rolling with a cutter or a die, but at least some of the adjacent matrix strips 112 are not cut, that is, there will still be connecting regions 113 connecting the adjacent matrix strips 112.

[0111] In some embodiments, a connecting region 113 is included between adjacent matrix strips 112, and the connecting region 113 completely covers the area between adjacent matrix strips 112. That is, adjacent matrix strips 112 are connected by a connecting region 113, and there is no disconnection between adjacent matrix strips 112. For example, the matrix strip 112 is formed by a portion of the surface of an aerosol matrix sheet protruding outward, with depressions formed between adjacent protrusions, and at least a portion of the depressions constitutes the connecting region 113. The sheet-like matrix 111 is pressed using a mold or roller, so that multiple protruding strips, i.e., matrix strips 112, are formed on at least one side of the sheet-like matrix 111, as shown in FIG4. A groove is formed between adjacent matrix strips 112, and the bottom area of ​​the groove constitutes the connecting region 113. Of course, it is understood that the grooves formed by pressing can also be discontinuous in some embodiments.

[0112] For example, adjacent matrix strips 112 are connected by a connecting region 113, the two ends of which extend to the two ends of the extending direction of the matrix strip 112. The dimension of the connecting region 113 in the thickness direction of the aerosol matrix sheet is smaller than the maximum dimension of the matrix strip 112 in the thickness direction of the aerosol matrix sheet. For example, the thickness of the bottom wall of the groove is smaller than the maximum dimension of the matrix strip 112 in the same direction as the bottom wall thickness.

[0113] In other embodiments, adjacent matrix strips 112 include a plurality of spaced-apart connecting regions 113, which cover a portion of the area between adjacent matrix strips 112, while other areas between adjacent matrix strips 112 are disconnected. That is, adjacent matrix strips 112 are connected by a plurality of connecting regions 113, and other areas between adjacent matrix strips 112 are disconnected.

[0114] In related technologies, aerosol matrix segments are obtained by bundling together multiple independent matrix strips. However, the integrity of multiple independent matrix strips is poor, the structural strength is low, and it is not conducive to assembly and manufacturing. During packaging, handling, transportation, or suction, the matrix strips may break and fall off.

[0115] In this embodiment of the present disclosure, adjacent matrix strips 112 can be connected together through the connecting area 113, which is beneficial to improve the integrity and overall strength of the sheet matrix 111, can improve the situation of matrix strips 112 breaking and falling off, and is beneficial to improve smoke volume, suction stability and yield.

[0116] In related technologies, the matrix units of the aerosol matrix segment are mainly in the form of flakes, filaments, and granules. In related technologies where the matrix units are granular, the filling process for filling the matrix units results in unstable suction resistance. Furthermore, the vibration and other effects during transportation and storage of granular matrix units can cause the granular matrix units in local areas of the aerosol matrix segment to become increasingly compact, leading to greater suction resistance and a poor suction experience.

[0117] The aerosol matrix sheet of this embodiment is formed by cutting the sheet-like matrix 111 into multiple matrix strips 112. After the aerosol matrix sheet is wound or gathered to form matrix segments 11, stable airflow channels 114 can be formed between adjacent matrix strips 112, reducing suction resistance and improving its stability. The suction resistance of the matrix segments 11 can also be adjusted by regulating the density, porosity, and size of the matrix strips 112. Furthermore, by forming at least one connecting region 113 between adjacent matrix strips 112, the integrity and overall strength of the sheet-like matrix 111 are improved. This helps reduce displacement and breakage caused by vibration, bending, pressure, etc., during transportation, storage, or use, further improving suction resistance stability. It also reduces the likelihood of matrix strips 112 breaking and detaching, thus improving smoke volume, suction stability, and yield. In addition, the matrix strips 112 are a homogeneous system, which facilitates the continuous and uniform generation of aerosols. It should be noted that the airflow channels 114 in Figures 2, 3, and 6 are merely a prominent structural representation and do not constitute a limitation on the size and proportion of the airflow channels 114. There are multiple airflow channels 114 in the matrix segment 11, and these multiple airflow channels 114 are arranged approximately in parallel. Due to the compression that occurs during the molding process of the matrix segment 11, in some embodiments, some airflow channels 114 have varying diameters; that is, the dimensions of the airflow channels 114 change along the length of the matrix segment 11 and are not consistent.

[0118] The matrix segment 11 formed above, under the premise of ensuring sufficient load, is conducive to achieving low suction resistance, and the release of aerosol after heating can achieve high burst and stable transmission. Combined with the suction resistance of the aerosol generating product 10 being greater than or equal to 20 mm water column and less than or equal to 50 mm water column, as well as the suction resistance of the first functional segment 12, the overall performance advantage of the aerosol generating product 10 is guaranteed.

[0119] In some embodiments, the thickness of at least a portion of the connecting region 113 is less than the maximum dimension of the matrix strip 112 along the thickness direction of the aerosol matrix sheet.

[0120] Here, the thickness of all the connecting regions 113 may be less than the maximum dimension of the matrix strip 112 along the thickness direction of the aerosol matrix sheet, or the thickness of some of the connecting regions 113 may be less than the maximum dimension of the matrix strip 112 along the thickness direction of the aerosol matrix sheet, while the thickness of another part of the connecting regions 113 may be equal to the maximum dimension of the matrix strip 112 along the thickness direction of the aerosol matrix sheet.

[0121] In this embodiment, by making the thickness of at least part of the connecting region 113 less than the maximum dimension of the matrix strip 112 along the thickness direction of the aerosol matrix sheet, a stable airflow channel 114 can be formed at the connecting region 113 after the aerosol matrix sheet is wound to form the matrix segment 11. This also strengthens the strength of the connecting region 113, thereby improving the stability of the suction resistance and the integrity of the aerosol matrix sheet.

[0122] In some embodiments, the substrate strip 112 is constructed by pressing and cutting a sheet-like substrate 111, with a groove formed between adjacent substrate strips 112, and a portion of the bottom wall of the groove forming a connecting region 113.

[0123] For example, as shown in Figures 4 and 5, the sheet substrate 111 can be cut or pressed by a mold to form an uneven surface on the sheet substrate 111. Here, the protruding area is the substrate strip 112 and the recessed area is the groove.

[0124] For example, the matrix strip 112 extends along a first direction.

[0125] In some embodiments, referring to Figures 4 and 5, the cutting direction of the sheet-like matrix 111 includes a second direction.

[0126] Here, the continuous lines or dashed lines inside the sheet-like matrix 111 in Figure 5 represent the cutting lines of the sheet-like matrix 111, and the breaks in the dashed lines represent the connecting regions 113.

[0127] Here, the sheet-like matrix 111 can be cut only along the second direction, or it can be cut along other directions in addition to the second direction.

[0128] In some embodiments, as shown in Figure 4, the first direction is parallel to the second direction.

[0129] In other words, the extension direction of the matrix strip 112 is parallel to the cutting direction of the sheet matrix 111.

[0130] Here, the extension direction of the matrix strip 112 and the cutting direction of the sheet matrix 111 can be approximately parallel or completely parallel.

[0131] In some embodiments, as shown in Figure 5, the first direction intersects with the second direction.

[0132] Here, the extension direction of the matrix strip 112 intersects the cutting direction of the sheet matrix 111. That is, the extension direction of the matrix strip 112 is not parallel to the cutting direction of the sheet matrix 111. For example, the extension direction of the matrix strip 112 is perpendicular to the cutting direction of the sheet matrix 111.

[0133] Of course, in other embodiments, the sheet-like matrix 111 includes multiple cutting directions. For example, the sheet-like matrix 111 includes a cutting direction parallel to the extension direction of the matrix strip 112, and also includes a cutting direction intersecting the extension direction of the matrix strip 112.

[0134] In some embodiments, the extension trajectory of the pressure groove is a straight line or a curve.

[0135] In other words, the shearing direction of the sheet-like matrix 111 can be curved, such as S-shaped or spiral, or it can be straight.

[0136] In some embodiments, as shown in Figures 4 and 5, the tensile strength of the sheet matrix 111 along the length of the matrix strip 112 is greater than or equal to 300 N / m.

[0137] Tensile strength, also known as tensile strength or breaking strength, represents the breaking force per unit area.

[0138] Tensile strength is the maximum load that causes the sheet matrix 111 test piece to break from its original cross-section.

[0139] The measurement standard can be a horizontal tensile strength measuring instrument, with a test sample width of 15mm and the thickness can be modified according to the actual thickness of the sample.

[0140] Here, by setting the tensile strength of the sheet-like matrix 111 along the length of the matrix strip 112 to be greater than or equal to 300 N / m, the breakage and detachment of the matrix strip 112 can be improved, which is beneficial to increasing the amount of smoke, the suction stability, and the yield. In addition, the matrix segment 11 can be made into a homogeneous system, which is conducive to the continuous and uniform generation of aerosols.

[0141] In some embodiments, the length of the substrate strip 112 is in the range of 8 mm to 20 mm.

[0142] The length of the substrate strip 112 can be any one of 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, or 20mm, or any combination thereof.

[0143] The longer the matrix strip 112 is, the more effective substances (aerosol forming agents) it contains, and the greater the amount of smoke. The shorter the matrix strip 112 is, the more it is beneficial to improve the ease of use and production efficiency of the matrix strip 112. In addition, it can also reduce the possibility of matrix strip 112 breaking.

[0144] In this embodiment, by setting the length of the matrix strip 112 to be between 8mm and 20mm, the matrix strip 112 can have sufficient smoke volume, while also improving the ease of use and production efficiency of the matrix strip 112.

[0145] In some embodiments, the equivalent diameter of the matrix strip 112 is in the range of 0.5 mm to 2.5 mm.

[0146] The equivalent diameter of the matrix strip 112 can be any one of 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1mm, 1.2mm, 1.3mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2mm, 2.2mm, 2.3mm, or 2.5mm, or a value between any two of them.

[0147] The equivalent diameter is the diameter calculated by equating an irregular object to a sphere or circle with the same specific properties.

[0148] Here, with a fixed equivalent diameter of the matrix segment 11, the larger the equivalent diameter of the matrix strip 112, the greater the structural strength of the matrix strip 112, which can reduce the possibility of matrix strip 112 breaking and reduce the processing difficulty; while the smaller the equivalent diameter of the matrix strip 112, the more matrix strips 112 there are, which further helps to form a stable airflow channel 114 between adjacent matrix strips 112, thereby improving the stability of suction resistance.

[0149] By setting the equivalent diameter of the matrix strip 112 to be in the range of 0.5 mm to 2.5 mm, the possibility of matrix strip 112 breaking can be reduced, the processing difficulty can be reduced, and it can further facilitate the formation of a stable airflow channel 114 between adjacent matrix strips 112, thereby improving the stability of suction resistance.

[0150] In some embodiments, the density of the matrix strip 112 is greater than or equal to 1000 mg / cm³. 3 And less than or equal to 1500 mg / cm 3 .

[0151] The density of matrix strip 112 can be 1000 mg / cm³. 3 1050mg / cm 3 1080mg / cm 3 1100mg / cm 3 1150mg / cm 3 1180mg / cm 3 1200mg / cm 3 1250mg / cm 31260mg / cm 3 1280mg / cm 3 1300mg / cm 3 1350mg / cm 3 1360mg / cm 3 1380mg / cm 3 1400mg / cm 3 1450mg / cm 3 1480mg / cm 3 1500mg / cm 3 The point value of any one of them or the point value between any two.

[0152] Here, when the density of matrix strip 112 is greater than 1500 mg / cm³ 3 When the density of matrix strip 112 is less than 1000 mg / cm³, it may result in a larger absorption resistance and a smaller amount of smoke, which will significantly limit the generation and migration of aerosols. 3 At the same time, it may result in insufficient stiffness of the matrix segment 11, a smaller amount of smoke, poor consistency of the matrix segment 11, and low vaping satisfaction.

[0153] Thus, by setting the density of matrix strip 112 to be greater than or equal to 1000 mg / cm³ 3 And less than or equal to 1500 mg / cm 3 This allows the substrate segment 11 to have appropriate draw resistance, as well as a certain degree of stiffness and smoke volume, which helps to improve the consistency of the substrate segment 11 and the satisfaction of vaping.

[0154] In some embodiments, the porosity of the matrix segment 11 is greater than or equal to 30% and less than or equal to 60%.

[0155] The porosity of the matrix segment 11 can be any one of 30%, 32%, 33%, 35%, 38%, 40%, 42%, 43%, 45%, 48%, 50%, 52%, 53%, 55%, 58%, 60%, or any value between two of them.

[0156] Here, when the porosity of the matrix section 11 is less than 30%, it may result in a large suction resistance of the matrix section 11, which will greatly limit the generation and migration of aerosols. When the porosity of the matrix section 11 is greater than 60%, it may result in a small amount of smoke and a low smoking satisfaction.

[0157] Thus, by setting the porosity of the matrix segment 11 to be greater than or equal to 30% and less than or equal to 60%, the matrix segment 11 can have appropriate draw resistance and a certain amount of smoke, which is beneficial to improving the smoking satisfaction.

[0158] In some embodiments, as shown in Figures 2, 3 and 6, at least one airflow channel 114 is formed between at least a portion of the matrix strips 112 within the matrix segment 11, and the airflow channel 114 extends along the length direction of the matrix strips 112.

[0159] The number of airflow channels 114 can be one or more.

[0160] When the aerosol matrix sheet is rolled or gathered to form a matrix segment 11, there is a certain gap between adjacent matrix strips 112, which can form an airflow channel 114.

[0161] The airflow channel 114 extends along the length of the matrix strip 112, which facilitates the flow of air along the length of the matrix strip 112. On the one hand, it can promote the generation of aerosols in the matrix strip 112, and on the other hand, it can carry the generated aerosols to the user, which is beneficial to the generation and migration of aerosols.

[0162] In some embodiments, the matrix strip 112 includes an aerosol forming agent, the weight of which is in the range of 15% to 30% based on the dry weight of the matrix strip 112.

[0163] The weight of the aerosol forming agent can be any one of 15%, 16%, 17%, 18%, 20%, 22%, 23%, 25%, 26%, 27%, 28%, or 30%, or any combination thereof.

[0164] Aerosol forming agents are used to form aerosols.

[0165] Because the aerosol forming agent is highly hydrophilic, on the one hand, the drying process of the matrix strip 112 will affect the removal of moisture, requiring a greater drying intensity, and excessive drying intensity may lead to greater loss of the corresponding aroma components; on the other hand, during the storage of the aerosol-generated product 10, the aerosol forming agent will absorb moisture, which may lead to an increase in the moisture content of the matrix strip 112.

[0166] In this embodiment, based on the dry weight of the matrix strip 112, by setting the weight of the aerosol forming agent to a range of 10% to 40%, the matrix strip 112 can generate a certain amount of aerosol and have a certain amount of smoke, while reducing the water retention and moisture absorption capacity of the aerosol, thereby improving the situation where the high moisture content of the matrix strip 112 leads to a large loss of aroma during the drying process.

[0167] Preferably, the weight of the aerosol forming agent is in the range of 15% to 30%.

[0168] In some embodiments, the suction resistance of the first functional segment 12 is greater than 0 and less than or equal to 5 mm of water column.

[0169] By making the suction resistance of the first functional section 12 greater than 0 and less than or equal to 5 mm water column, it is beneficial to increase the air intake of the aerosol generating product 10, thereby facilitating the generation and extraction of aerosols. It also makes the suction resistance of the aerosol generating product 10 appropriate, improving the user experience.

[0170] In some embodiments, the suction resistance of the second functional segment 13 is greater than or equal to 10 mm water column and less than or equal to 50 mm water column.

[0171] The suction resistance of the second functional segment 13 can be any one of the following values, or a value between any two: 10mmH2O, 13mmH2O, 15mmH2O, 18mmH2O, 19mmH2O, 20mmH2O, 23mmH2O, 25mmH2O, 28mmH2O, 30mmH2O, 33mmH2O, 35mmH2O, 38mmH2O, 40mmH2O, 42mmH2O, 45mmH2O, 48mmH2O, and 50mmH2O.

[0172] Since the suction resistance of the second functional section 13 is greater than or equal to 10 mm water column and less than or equal to 50 mm water column, it helps to ensure that the suction resistance of the aerosol generating product 10 is appropriate, reducing the user's suction force and minimizing aerosol output jamming or instability, thus improving the suction experience and user comfort. Furthermore, it also helps to improve the filtration and / or cooling effect of the aerosol.

[0173] In some embodiments, as shown in Figures 1 and 2, the peripheral sidewall of the second functional segment 13 is provided with at least one air inlet 134.

[0174] The number of air intake vents 134 can be one or more.

[0175] For example, the air inlet 134 can be connected to the hollow channel 1311 inside the second functional section 13. In other words, the hollow channel 1311 inside the second functional section 13 is connected to the outside of the second functional section 13 through the air inlet 134.

[0176] Here, the second functional section 13 has an air inlet 134 that passes through the side wall of the hollow channel 1311. That is, the air inlet 134 passes through the side wall of the hollow channel 1311 and is connected to the hollow channel 1311.

[0177] For example, the wrapping layer 135 has a clearance hole formed at the position corresponding to the air inlet 134 to avoid the air inlet 134.

[0178] In this embodiment, at least one air inlet 134 is provided on the peripheral sidewall of the second functional section 13, so that external air can enter the interior of the second functional section 13 through the air inlet 134, which is beneficial to cooling the aerosol inside the second functional section 13, thereby further improving the cooling effect of the second functional section 13.

[0179] By adding a lateral air intake channel (i.e., air inlet 134), the internal and external environmental pressure of the airflow circulation is adjusted, which helps to improve the problem of slow aerosol extraction efficiency in the front section of the bottom air intake aerosol generation device 20 under the circumferential heating mode, reduces the transmission temperature of the extracted aerosol, and adjusts the absorption resistance (RTD) of the aerosol generation product 10.

[0180] In some embodiments, please refer to Figures 1 to 3. The first functional segment 12, the matrix segment 11 and the second functional segment 13 are cylinders and are coaxially arranged. The arrangement direction of the first functional segment 12, the matrix segment 11 and the second functional segment 13 is the axial direction of the first functional segment 12, the matrix segment 11 and the second functional segment 13.

[0181] By setting the first functional segment 12, the matrix segment 11, and the second functional segment 13 as cylinders and arranging them sequentially along the axial direction of the first functional segment 12, the matrix segment 11, and the second functional segment 13, the structure of the aerosol generating product 10 can be made more compact, improving the user experience.

[0182] The present disclosure will now be described in further detail with reference to specific embodiments. These descriptions are merely illustrative and not intended to limit the scope of the disclosure.

[0183] Example 1

[0184] The length of matrix segment 11 is 12 mm. Based on the dry weight of matrix strip 112, the weight of aerosol forming agent is 25%, and the density of matrix strip 112 is 1225 mg / cm³. 3 The equivalent diameter of the matrix strip 112 is 1 mm, the porosity of the matrix segment 11 is 35%, the suction resistance of the matrix segment 11 is 5 mm water column, and the suction resistance of the aerosol-generated product 10 is 37 mm water column.

[0185] Example 2

[0186] The matrix segment 11 is 12 mm long. Based on the dry weight of the matrix strip 112, the weight of the aerosol forming agent is 25%, and the density of the matrix strip 112 is 1025 mg / cm³. 3 The equivalent diameter of the matrix strip 112 is 1 mm, the porosity of the matrix segment 11 is 35%, the suction resistance of the matrix segment 11 is 5 mm water column, and the suction resistance of the aerosol-generated product 10 is 38 mm water column.

[0187] Comparative Example 1

[0188] The length of matrix segment 11 is 12 mm. Based on the dry weight of matrix strip 112, the weight of aerosol forming agent is 25%, and the density of matrix strip 112 is 1225 mg / cm³. 3 The equivalent diameter of the matrix strip 112 is 1 mm, the porosity of the matrix segment 11 is 22%, the suction resistance of the matrix segment 11 is 15 mm water column, and the suction resistance of the aerosol-generated product 10 is 100 mm water column.

[0189] Comparative Example 2

[0190] The length of matrix segment 11 is 12 mm. Based on the dry weight of matrix strip 112, the weight of aerosol forming agent is 25%, and the density of matrix strip 112 is 912 mg / cm³. 3 The equivalent diameter of the matrix strip 112 is 1 mm, the porosity of the matrix segment 11 is 35%, the suction resistance of the matrix segment 11 is 5 mm water column, and the suction resistance of the aerosol-generated product 10 is 35 mm water column.

[0191] Comparative Example 3

[0192] The matrix strip 112 was replaced with a thickened tobacco sheet, the density of which was 918 mg / cm³. 3 The thickness is 220um and the width is 1.0mm. The porosity of the matrix segment 11 is 25.64% and the suction resistance of the matrix segment 11 is 11mm water column. The suction resistance of the aerosol-generated product 10 is 17mm water column.

[0193] Experimental data

[0194] Test 1:

[0195] The experimental subject was the aerosol-generated product 10 from Example 1.

[0196] Test conditions: 51-56% RH, 25℃, clean room, 2 seconds of suction and 28 seconds of rest, suction volume 55ml, 10 injections, 5 vials in total, all units are mg.

[0197] Table 1 Test Results

[0198] As shown in Table 1, the average amount of vapor produced per puff (aerosol) during the heating process of the aerosol-generated product 10 in Example 1 was 7.58 mg / puff, with a relative standard deviation (RSD) of 11.91% for vapor production and 25.71% for nicotine. The vapor production, the release of atomizing agents, nicotine, and other effective substances in the aerosol were all very stable. Due to the high overall density of the matrix strip 112 in Example 1, the draw resistance of the matrix segment 11 was low, allowing the effective components in the matrix segment 11 to migrate quickly and stably, thus improving the vaping experience.

[0199] Test 2:

[0200] The experimental subject was the aerosol-generated product 10 from Example 2.

[0201] Test conditions: Same as Test 1

[0202] Table 2 Test Results

[0203] As can be seen from the results in Table 2, the average amount of smoke (aerosol) generated during the heating process of the aerosol-generated product 10 in Example 2 was 7.37 mg / puff, the RSD (relative standard deviation) of the smoke was 19.51%, and the RSD (relative standard deviation) of nicotine was 24.23%. The smoke, atomizing agent, nicotine and other effective substances in the aerosol were very stable, but decreased compared to Example 1. The main reason is that the density of the matrix strip 112 decreased, resulting in a decrease in the overall effective load. The release of effective substances was increased in the early stage of heating, but decreased in the middle and later stages, but remained at a relatively stable level overall.

[0204] Test 3:

[0205] The experimental subject was the aerosol-generating product 10 of Comparative Example 1.

[0206] Test conditions: Same as Test 1

[0207] Table 3 Test Results

[0208] As shown in Table 3, the average amount of smoke (aerosol) generated during the heating process of the aerosol-generated product 10 in Comparative Example 1 was 5.972 mg / puff, with a relative standard deviation (RSD) of 22.23% for smoke and 30.52% for nicotine. The amount of smoke, the release of atomizing agents, nicotine, and other effective substances in the aerosol, and their consistency all decreased, especially the release amount, which decreased by 21.21% compared to Example 1. This is mainly because the matrix segment 11 in Comparative Example 1 had lower porosity and higher suction resistance, which affected aerosol generation and migration, thus impacting the suction experience.

[0209] Test 4:

[0210] The experimental subject was the aerosol-generating product 10 of Comparative Example 2.

[0211] Test conditions: Same as Test 1

[0212] Table 4 Test Results

[0213] As can be seen from the results in Table 4, the average amount of smoke (aerosol) generated during the heating process of the aerosol-generated product 10 in Comparative Example 2 was 6.323 mg / puff, the RSD (relative standard deviation) of the smoke was 27.02%, and the RSD (relative standard deviation) of nicotine was 15.66%. The amount of smoke and the consistency of smoke were significantly lower than those in Example 1. The main reason is that the density of the matrix strip 112 decreased, resulting in a significant decrease in the overall effective load. The release of effective substances was improved in the early stage of heating, but decreased in the middle and later stages.

[0214] Test 5:

[0215] The experimental subject was the aerosol-generating product 10 of Comparative Example 3.

[0216] Test conditions: Same as Test 1

[0217] Table 5 Test Results

[0218] As shown in Table 5, the average amount of smoke (aerosol) generated during the heating process of the aerosol-generated product 10 in Comparative Example 3 was 4.296 mg / puff, with a relative standard deviation (RSD) of 24.55% and a nicotine RSD of 15.6%. The smoke volume and the release of atomizing agents in the aerosol were significantly lower than in Example 1. This is mainly because the matrix strip 112 in Example 1 had a higher overall density and effective substance loading, while the matrix section 11 had moderate porosity and low suction resistance, which was beneficial for aerosol production and migration.

[0219] In the description of this disclosure, references to terms such as "in one embodiment," "in some embodiments," "in other embodiments," "in yet another embodiment," or "exemplary," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the embodiments of this disclosure. In this disclosure, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, those skilled in the art can combine the different embodiments or examples described in this disclosure and the features of the different embodiments or examples without contradiction.

[0220] The above embodiments are merely illustrative of the technical solutions of this disclosure and are not intended to limit it. Although this disclosure 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. These 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 disclosure, and they should all be covered within the scope of the claims and specification of this disclosure. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. This disclosure is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An aerosol generating article, comprising a first functional segment, a matrix segment, and a second functional segment arranged sequentially. The first functional segment is located at the distal lip of the matrix segment. The second functional segment is located near the lip end of the matrix segment. The aerosol-generated product has a suction resistance greater than or equal to 20 mm water column and less than or equal to 50 mm water column. in, The absorption resistance of the matrix segment is greater than 0 and less than or equal to 5 mm of water column.

2. The aerosol-generating product according to claim 1, wherein, The absorption resistance of the first functional segment and the absorption resistance of the matrix segment are at least one less than the absorption resistance of the second functional segment, and / or, The absorption resistance of the matrix segment is less than or equal to the absorption resistance of the first functional segment.

3. The aerosol-generating product according to claim 2, wherein, The matrix segment is constructed by winding or aggregating aerosol matrix sheets. The aerosol matrix sheets include sheet-like matrix, which is an integral structure. The sheet-like matrix includes multiple parallel matrix strips, and at least one connecting region is formed between adjacent matrix strips. The connecting region connects adjacent matrix strips. The aerosol matrix sheets can be heated to generate aerosols.

4. The aerosol-generating product according to claim 3, wherein, The tensile strength of the sheet-like matrix along the length of the matrix strip is greater than or equal to 300 N / m; and / or, The length of the substrate strip is in the range of 8mm to 20mm.

5. The aerosol-generating product according to claim 3, wherein, The matrix strip includes an aerosol forming agent, the weight of which is in the range of 15% to 30% based on the dry weight of the matrix strip; and / or, The density of the matrix strip is greater than or equal to 1000 mg / cm³. 3 And less than or equal to 1500 mg / cm 3 .

6. The aerosol-generating product according to claim 3, wherein, The equivalent diameter of the matrix strip is in the range of 0.5 mm to 2.5 mm; and / or, At least one airflow channel is formed between at least a portion of the matrix strips within the matrix segment, and the airflow channel extends along the length direction of the matrix strip.

7. The aerosol-generating article according to any one of claims 1 to 6, wherein, The porosity of the matrix segment is greater than or equal to 30% and less than or equal to 60%; and / or, The second functional segment includes a hollow tube segment and a filter segment; and / or, the first functional segment is a hollow tube.

8. The aerosol-generating article according to any one of claims 1 to 6, wherein, The suction resistance of the first functional segment is greater than 0 and less than or equal to 5 mm of water column; and / or, The suction resistance of the second functional segment is greater than or equal to 10 mm water column and less than or equal to 50 mm water column.

9. The aerosol-generating article according to any one of claims 1 to 6, wherein, The peripheral sidewall of the second functional section is provided with at least one air inlet.

10. An aerosol generation system, the aerosol generation system comprising: Aerosol generating device; The aerosol generating article according to any one of claims 1-9, wherein the aerosol generating apparatus includes a heating element for heating the aerosol generating article to generate an aerosol.

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