Aerosol-generating article and aerosol-generating system

Abstract

The present disclosure provides an aerosol-generating article and an aerosol-generating system. The aerosol-generating article comprises a substrate segment, a first functional segment, a second functional segment, and a second ventilation zone. The substrate segment is configured to be formed by winding or gathering an aerosol-generating substrate sheet. The first functional segment is located at a lip‑proximal end of the substrate segment. The first functional segment comprises a hollow tube segment, a hollow channel is provided inside the hollow tube segment, and a circumferential side wall of the hollow tube segment forms a first ventilation zone. The second functional segment is located at a lip‑distal end of the substrate segment. The second ventilation zone is formed at an interface between the substrate segment and the second functional segment. Embodiments of the present disclosure provide an aerosol-generating article, which can regulate airflow circulation pressure so as to adjust the draw resistance of an aerosol-generating system. Furthermore, the invention is conducive to improving the extraction efficiency of aerosol generated at the lip‑distal end of the substrate segment, enables cooling of the aerosol, and achieves adjustment of the draw resistance of the aerosol-generating article, thereby enhancing the inhalation experience of the user.

Description

An aerosol generating product and an aerosol generating system

[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. 202511150932.9, 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] Smoke-generating products include those that form aerosols by ignition and those that form aerosols by heating without combustion. In a typical smoke-generating product that is heated without combustion, it includes an aerosol-generating matrix that can volatilize to generate aerosols when heated, and a functional section. The functional section works with the aerosol-generating matrix to achieve the inhalation of aerosols. The aerosol-generating matrix is ​​heated by an external heat source to a temperature sufficient to release fragrance. The aerosol-generating matrix does not burn; instead, it is loaded with an atomizing agent. During use, the atomizing agent is released by high-temperature heating to form smoke.

[0005] In related technologies, insufficient external air intake in aerosol-generating products means that when aerosols are generated in the matrix section, there is not enough airflow to carry the aerosols out of the medium section, resulting in low aerosol extraction efficiency and affecting the user's suction experience. Summary of the Invention

[0006] In view of this, the present disclosure aims to provide an aerosol generation product and aerosol generation system that can improve the user experience.

[0007] To achieve the above objectives, a first aspect of this disclosure provides an aerosol-generating article, comprising:

[0008] The matrix segment is constructed by winding or aggregating aerosol matrix sheets;

[0009] The first functional segment is located near the lip end of the matrix segment. The first functional segment includes a hollow tube segment with a hollow channel inside, and the circumferential sidewall of the hollow tube segment forms a first ventilation zone.

[0010] The second functional segment is located at the distal lip of the matrix segment;

[0011] The second ventilation zone is formed at the junction between the matrix section and the second functional section.

[0012] In some embodiments, the aerosol matrix sheet includes a sheet-like matrix, the sheet-like matrix being an integral structure, the sheet-like matrix including 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.

[0013] In some embodiments, the cross-sectional area of ​​the second ventilation zone is less than or equal to the cross-sectional area of ​​the first ventilation zone.

[0014] In some embodiments, the distance between the first ventilation zone and the distal lip of the second functional segment is in the range of 25 mm to 40 mm; and / or,

[0015] The distance between the first ventilation zone and the near-lip end of the matrix segment is greater than or equal to 15 mm.

[0016] In some embodiments, the aerosol-generating article includes a coating layer that wraps around the outer surfaces of the matrix segment, the first functional segment, and the second functional segment. The coating layer is provided with vents that at least partially overlap with the first ventilation area and the second ventilation area.

[0017] In some embodiments, the length of the hollow tube segment is greater than or equal to 15 mm and less than or equal to 20 mm, and the equivalent outer diameter of the hollow tube segment is less than or equal to 7.2 mm; and / or,

[0018] The hardness of the hollow pipe section is greater than or equal to 70%.

[0019] In some embodiments, 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,

[0020] The length of the substrate strip is in the range of 8 mm to 20 mm; and / or,

[0021] 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 .

[0022] In some embodiments, an airflow channel is formed between adjacent matrix strips, the airflow channel extending along the length of the matrix segment, and the second ventilation zone is directly connected to the airflow channel; and / or,

[0023] The porosity of the matrix segment is greater than or equal to 18%.

[0024] In some embodiments, the second functional segment includes a front plug segment, the length of which is in the range of 5 mm to 9 mm.

[0025] A second aspect of this disclosure provides an aerosol generation system, which includes an aerosol generation device and an aerosol generation article as described in any embodiment of this disclosure. The aerosol generation device includes a heating element for heating the aerosol generation article to generate aerosols.

[0026] This disclosure provides an aerosol generation article comprising a first functional section located near the lip of a matrix section and a second functional section located at the distal lip of the matrix section. By providing a first ventilation zone on the first functional section and a second ventilation zone at the junction of the matrix section and the second functional section, air intake can be achieved by providing ventilation zones at both ends of the matrix section. Specifically, the second ventilation zone is located at the distal lip of the matrix section. During suction, external airflow can enter the matrix section through the second ventilation zone, thus adjusting the airflow circulation pressure and thereby regulating the suction resistance of the aerosol generation system. This also helps to improve the extraction efficiency of aerosols generated at the distal lip of the matrix section. Furthermore, the first functional section is provided with a hollow tube section having a hollow channel, and a first ventilation zone is formed on the circumferential sidewall of the hollow tube section, i.e., a first ventilation zone is provided near the lip of the matrix section. The airflow entering the hollow channel through the first ventilation zone can cool the aerosol. Furthermore, the first and second ventilation zones can work together to adjust the airflow resistance at both ends of the matrix section, thereby regulating the suction resistance of the aerosol-generated product and improving the user's suction experience. Additionally, placing the second ventilation zone at the junction of the matrix section and the second functional section, where there is a seam, and directly connecting the second ventilation zone to this seam, further facilitates suction resistance adjustment and aerosol transport efficiency. Attached Figure Description

[0027] Figure 1 is a schematic diagram of the structure of an aerosol generation system according to some embodiments of the present disclosure;

[0028] Figure 2 is a schematic diagram of the structure of the aerosol-generated article according to the first embodiment of this disclosure;

[0029] Figure 3 is a schematic diagram of the structure of the aerosol-generated article according to the second embodiment of this disclosure;

[0030] Figure 4 is a schematic diagram of the structure of the aerosol-generated article according to the third embodiment of this disclosure;

[0031] Figure 5 is a schematic diagram of the structure of the sheet-like matrix according to some embodiments of the present disclosure;

[0032] Figure 6 is a schematic diagram of the structure of a sheet-like matrix according to some embodiments of the present disclosure.

[0033] 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. Coating layer; 121. First coating layer; 122. Second coating layer; 13. First functional section; 131. Hollow tube section; 1311. Hollow channel; 132. Filter section; 133. Support section; 134. First ventilation zone; 14. Second functional section; 15. Second ventilation zone; 20. Aerosol generating device; 21. Container chamber; 22. Heating element; 23. Energy supply element; 100. Aerosol generating system. Detailed Implementation

[0034] It should be noted that, unless otherwise specified, the embodiments and technical features in the embodiments of this disclosure can be combined with each other, and the detailed descriptions in the specific embodiments should be understood as explanations of the purpose of this disclosure and should not be regarded as undue limitations on this disclosure.

[0035] 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.

[0036] This disclosure provides an aerosol-generating article. Referring to Figures 1 to 6, the aerosol-generating article 10 includes a matrix segment 11, a first functional segment 13, a second functional segment 14, and a second ventilation zone 15. The matrix segment 11 is constructed by winding or agglomerating an aerosol matrix sheet. The first functional segment 13 is located near the lip end of the matrix segment 11 and includes a hollow tube segment 131. The hollow tube segment 131 has a hollow channel 1311 inside, and the circumferential sidewall of the hollow tube segment 131 forms a first ventilation zone 134. The second functional segment 14 is located at the distal lip end of the matrix segment 11. The second ventilation zone 15 is formed at the junction between the matrix segment 11 and the second functional segment 14.

[0037] In this embodiment of the disclosure, the aerosol generating article 10 is described as being suitable for suction by heating without combustion.

[0038] The aerosol generating article 10 disclosed herein is applied to an aerosol generating system 100.

[0039] For example, the aerosol generation system 100 includes the aerosol generation article 10 and the aerosol generation apparatus 20 of any embodiment of the present disclosure.

[0040] 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.

[0041] Aerosol generating article 10 is used to generate aerosols when heated for users to inhale.

[0042] In some embodiments, referring to FIG1, the aerosol generating apparatus 20 includes a heating element 22 for heating the aerosol generating article 10 to generate an aerosol.

[0043] 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.

[0044] Specifically, the aerosol generating device 20 includes a housing and an energy supply element 23 disposed within the housing. The housing has a receiving chamber 21. The power output part of the energy supply element 23 is disposed within the receiving chamber 21 or around the side wall of the receiving chamber 21. When the portion of the aerosol generating product 10 located in the first direction range is inserted into the receiving chamber 21, the power output part transmits power 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 product 10 and generating aerosol.

[0045] In some embodiments, the aerosol generating device 20 includes an energy supply element 23 for providing energy to the heating element 22 to generate heat.

[0046] 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.

[0047] Here, the number of aerosol generating products 10 in the aerosol generating device 20 can be one or more.

[0048] In this disclosure, "multiple" refers to two or more items.

[0049] It should be noted that the specific composition of matrix segment 11 is not limited here.

[0050] For example, in some embodiments, the matrix segment 11 may include tobacco plants, etc.

[0051] 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.

[0052] 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 a matrix segment 11 of a second thickness, wherein the first thickness is greater than the second thickness. The matrix segment 11 is cut into multiple unbroken matrix strips 112. The cut matrix segments 11 are then wound or aggregated.

[0053] The aerosol generating article 10 includes a first functional segment 13, which is located near the lip end of the matrix segment 11. The lip end refers to the end of the aerosol generating article 10 that is closest to the user when the user uses it, i.e., the end that is inhaled with the mouth.

[0054] Correspondingly, the distal lip refers to the end of the aerosol generating article 10 that is furthest from the user when the user uses it. In some embodiments, the aerosol generating article 10 includes a second functional segment 14 located at the distal lip of the matrix segment 11.

[0055] For example, please refer to Figure 2. The two ends of the aerosol generating article 10 along the first direction are the near lip end and the far lip end, respectively.

[0056] In related technologies, high-density, high-load aerosol generation matrix and its suction products are used. The cooling section of the aerosol suction product is a single-section cooling tube with an extremely small inner diameter. By reducing the inner diameter of the cooling section, the proportion of air in the extracted aerosol is reduced, increasing the smoke concentration and enhancing the fullness. At the same time, the narrow channel makes the airflow more concentrated during passage, reducing the air dilution ratio and increasing the aerosol concentration, making the inhaled smoke appear richer and fuller. The small inner diameter also accelerates the airflow speed, enhancing the impact of the smoke during suction and providing a stronger throat hit. Reducing smoke retention, the narrow channel reduces the contact area between the smoke and the inside of the filter, reducing heat loss and maintaining a higher smoke temperature. This reduces condensation and retention of smoke in the cooling tube. Simultaneously, the matrix section 11 has a high load density and relatively normal porosity, ensuring normal suction resistance.

[0057] The hollow tube segment 131 in this embodiment can be used as a cooling section for the aerosol-generating product. Exemplarily, the first functional segment 13 includes the hollow tube segment 131, which has a hollow channel 1311 inside. The hollow tube segment 131 can cool the flowing aerosol and also provide support within the aerosol-generating product 10. The hollow channel 1311 formed inside the hollow tube segment 131 facilitates the flow of aerosol generated by the heated matrix segment 11 through the hollow channel 1311 for cooling.

[0058] The circumferential sidewall of the hollow tube section 131 forms a first ventilation zone 134. Exemplarily, the first ventilation zone 134 is formed on at least a portion of the circumferential tube wall, and the tube wall of this region has a porous structure, through which external air can flow into the hollow channel 1311.

[0059] The porous structure of the first ventilation zone 134 facilitates the entry of outside air into the hollow channel 1311. This air enters the interior of the aerosol generating article 10 and comes into contact with the matrix section 11. This allows for the removal of more aerosols during heating of the aerosol generating article 10, increasing smoke volume and improving draw resistance. The first ventilation zone 134 also ensures more even heat distribution within the aerosol generating article 10, aiding in heat transfer from the heating source to the interior of the aerosol generating article 10 and increasing its heated surface area. Furthermore, the first ventilation zone 134 can introduce outside air, which mixes with the aerosols, thereby reducing smoke concentration, making the smoke gentler, and minimizing throat irritation for the user.

[0060] For example, the matrix segment 11 includes tobacco components, and the arrangement of the first ventilation zone 134 can affect the release efficiency of nicotine and aroma components in the tobacco.

[0061] In some embodiments, for the indirectly heated aerosol generating apparatus 20, the setting of the first ventilation zone can generate thermal convection, which is conducive to the penetration of hot air into the interior of the aerosol generating article 10.

[0062] In some embodiments, the overall temperature distribution of the aerosol-generating product 10 can be controlled by adjusting the location and ventilation volume of the first ventilation zone 134, thereby affecting the release efficiency of nicotine and aroma components in the tobacco. In some embodiments, different first ventilation zones 134 can be set near and away from the heating end, so that the aerosols at different locations have different tastes due to different temperatures, resulting in more complex taste layers.

[0063] The second ventilation zone 15 is formed at the junction between the matrix section 11 and the second functional section 14.

[0064] The second ventilation zone 15 is located at the junction of the matrix section 11 and the second functional section 14. The second ventilation zone 15 provides a channel for external gas to enter from the bottom of the matrix section 11. By increasing the air intake, the airflow can carry more aerosols when it flows through the matrix section.

[0065] In related technologies, the external air intake of the aerosol-generating product is insufficient. When the aerosol is generated in the matrix section, there is not enough airflow to carry the aerosol out of the matrix section, resulting in low aerosol extraction efficiency and a small amount of aerosol, which affects the user's suction experience.

[0066] This disclosure provides an aerosol generating article 10, which includes a first functional segment 13 located near the lip end of a matrix segment 11 and a second functional segment 14 located at the distal lip end of the matrix segment 11. By providing a first ventilation zone 134 on the first functional segment 13 and forming a second ventilation zone 15 at the junction between the matrix segment 11 and the second functional segment 14, ventilation zones can be provided at both ends of the matrix segment 11 to achieve air intake. That is, the second ventilation zone 15 is located at the distal lip end of the matrix segment 11. During suction, external airflow can enter the aerosol generating article 10 through the second ventilation zone 15. In this way, the airflow circulation pressure can be adjusted, thereby adjusting the suction resistance of the aerosol generating system 100 and improving the extraction efficiency of aerosols generated at the distal lip end of the matrix segment 11. Furthermore, the first functional section 13 is provided with a hollow tube section 131 having a hollow channel 1311, and a first ventilation zone 134 is formed on the circumferential sidewall of the hollow tube section 131. That is, the first ventilation zone 134 is set at the near-lip end of the matrix section 11. The airflow entering the hollow channel 1311 through the first ventilation zone 134 can cool the aerosol. In addition, the first ventilation zone 134 and the second ventilation zone 15 can work together to adjust the airflow resistance at both ends of the matrix section 11, thereby adjusting the suction resistance of the aerosol-generated product 10 and improving the user's suction experience. In addition, the second ventilation zone is set at the junction between the matrix section and the second functional section. There is a splicing gap at the junction between the matrix section and the second functional section. Directly connecting the second ventilation zone to the splicing gap is more conducive to the adjustment of suction resistance and the transmission efficiency of aerosol.

[0067] In some embodiments, please refer to Figures 5 and 6. 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.

[0068] The matrix segment 11 is formed by winding or aggregating the matrix segments 11, and the matrix segment 11 includes a sheet-like matrix 111.

[0069] For example, the sheet matrix 111 can be an integral structure, that is, the sheet matrix 111 is an integral structure, which is beneficial to improve the integrity of the sheet matrix 111, thereby improving the stability of the sheet matrix 111.

[0070] The formation of at least a partial 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 between some matrix strips 112, and multiple connection regions 113 may be formed between other matrix strips 112.

[0071] Here, the connecting regions 113 formed between the matrix strips 112 can be the same or different.

[0072] It should be noted that the specific location of the connecting area 113 is not restricted here.

[0073] 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 may be cut into multiple matrix strips 112 by pressing or rolling with a cutter or a mold, but at least some of the adjacent matrix strips 112 are not cut off, that is, there will still be connecting regions 113 connecting the adjacent matrix strips 112.

[0074] 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 break between adjacent matrix strips 112. For example, a matrix strip 112 is formed by a portion of the surface of a matrix segment 11 protruding outward, and a depression is formed between adjacent protrusions, at least part of the depression constitutes the connecting region 113. The sheet 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 matrix 111, as shown in FIG. 5. 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 groove formed by pressing may also be discontinuous in some embodiments.

[0075] For example, adjacent substrate 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 substrate strip 112. The dimension of the connecting region 113 in the thickness direction of the substrate segment 11 is smaller than the maximum dimension of the substrate strip 112 in the thickness direction of the substrate segment 11. For example, the thickness of the bottom wall of the groove is smaller than the maximum dimension of the substrate strip 112 in the same direction as the bottom wall thickness.

[0076] For example, the matrix strips 112 are arranged in an orderly manner in the matrix segment 11, thereby achieving a high filling rate of the matrix segment 11.

[0077] For example, the filling rate of the matrix segment 11 is greater than or equal to 65%, and the mass of the matrix segment 11 accounts for ≥45% of the mass of the aerosol-generated product 10. In this way, high load can be achieved through high matrix density and high filling rate.

[0078] 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.

[0079] In related technologies, aerosol matrix segments 11 are obtained by bundling together multiple independent matrix strips 112. However, the integrity of multiple independent matrix strips 112 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 112 may break and fall off.

[0080] 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.

[0081] In related technologies, the matrix units of the aerosol matrix segment 11 are mainly in the form of flakes, filaments, and granules. In related technologies where the matrix units are granular, the matrix units are filled through a filling process, which has the problem of unstable suction resistance. Furthermore, the vibration and other effects during the transportation and storage of granular matrix units can cause the granular matrix units in local areas of the aerosol matrix segment 11 to become increasingly compact, resulting in greater suction resistance and a poor suction experience.

[0082] The matrix segment 11 of this embodiment is formed by cutting the sheet-like matrix 111 into multiple matrix strips 112. This allows for the formation of stable airflow channels 114 between adjacent matrix strips 112 after the matrix segment 11 is wound or gathered, reducing suction resistance and improving its stability. The suction resistance of the matrix segment 11 can also be adjusted by regulating the density, porosity, and size of the matrix strips 112. Furthermore, the formation of at least one connecting region 113 between adjacent matrix strips 112 improves the integrity and overall strength of the sheet-like matrix 111, reducing displacement and breakage caused by vibration, bending, and pressure during transportation, storage, or use. This further enhances suction resistance stability and reduces the likelihood of matrix strip breakage and detachment, improving smoke volume, suction stability, and product yield. Additionally, the matrix strips 112 are a homogeneous system, facilitating the continuous and uniform generation of aerosols. It should be noted that the airflow channels 114 in Figures 2, 3, and 4 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.

[0083] In some embodiments, the matrix segment 11 has at least one airflow channel 114, the pressure drop of the airflow channel 114 on the suction pressure is no greater than 100 Pa. By controlling the pressure drop of the airflow channel 114, the suction resistance is adjusted so that the suction resistance of the aerosol-generated article 10 meets the user's suction comfort requirements.

[0084] 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 second functional segment 14, the overall performance advantage of the aerosol generating product 10 is guaranteed.

[0085] 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 matrix segment 11.

[0086] 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 matrix segment 11, 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 matrix segment 11, 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 matrix segment 11.

[0087] 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 matrix segment 11, a stable airflow channel 114 can be formed at the connecting region 113 after the matrix segment 11 is wound to form the matrix segment 11, and the strength of the connecting region 113 can also be strengthened, thereby improving the stability of the suction resistance and the integrity of the matrix segment 11.

[0088] 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.

[0089] For example, as shown in Figures 5 and 6, 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.

[0090] For example, the matrix strip 112 extends along a first direction.

[0091] In some embodiments, referring to Figures 5 and 6, the cutting direction of the sheet-like matrix 111 includes a second direction.

[0092] 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.

[0093] 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.

[0094] In some embodiments, as shown in Figure 5, the first direction is parallel to the second direction.

[0095] In other words, the extension direction of the matrix strip 112 is parallel to the cutting direction of the sheet matrix 111.

[0096] 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.

[0097] In some embodiments, as shown in Figure 6, the first direction intersects with the second direction.

[0098] 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.

[0099] 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.

[0100] In some embodiments, the extension trajectory of the pressure groove is a straight line or a curve.

[0101] In other words, the shearing direction of the sheet-like matrix 111 can be curved, such as S-shaped, spiral, etc., or it can be straight.

[0102] For example, the length of the aerosol generating article 10 is in the range of 45 mm to 120 mm, and the diameter of the aerosol generating article 10 is in the range of 5 mm to 7.5 mm.

[0103] The length of the aerosol-generated article 10 can be, for example, any one of 45mm, 50mm, 55mm, 60mm, 65mm, 70mm, 75mm, 80mm, 85mm, 90mm, 95mm, 100mm, 105mm, 110mm, 115mm, or 120mm, or any combination thereof.

[0104] The diameter of the aerosol-generating article 10 can be, for example, any one of the following values ​​or a value between any two: 5 mm, 5.1 mm, 5.2 mm, 5.3 mm, 5.4 mm, 5.5 mm, 5.6 mm, 5.7 mm, 5.8 mm, 5.9 mm, 6.0 mm, 6.1 mm, 6.2 mm, 6.3 mm, 6.4 mm, 6.5 mm, 6.6 mm, 6.7 mm, 6.8 mm, 6.9 mm, 7.0 mm, 7.1 mm, 7.2 mm, 7.3 mm, 7.4 mm, and 7.5 mm.

[0105] Setting the length and diameter of the aerosol-generating article 10 within the above-mentioned range is beneficial for the storage and carrying of the aerosol-generating article 10.

[0106] In some embodiments, as shown in Figures 5 and 6, 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.

[0107] Tensile strength, also known as tensile strength or breaking strength, represents the breaking force per unit area.

[0108] Tensile strength is the maximum load that causes the sheet matrix 111 test piece to break from its original cross-section.

[0109] The measurement standard can be a horizontal tensile strength measuring instrument, with a test sample width of 15 mm and the thickness can be modified according to the actual thickness of the sample.

[0110] 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.

[0111] In some embodiments, please refer to Figures 5 and 6, the equivalent diameter of some matrix strips 112 is less than 1 mm, and the equivalent diameter of other matrix strips 112 is in the range of 1 mm to 3 mm.

[0112] The equivalent diameter of a portion of the matrix strip 112 can be a point value of any one of 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, or 1mm, or a point value between any two of them.

[0113] The equivalent diameter of other bars can be any one of the following: 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, 2.2 mm, 2.3 mm, 2.5 mm, 2.6 mm, 2.7 mm, 2.8 mm, 2.9 mm, or 3 mm, or a value between any two of them.

[0114] The equivalent diameter is the diameter calculated by equating an irregular object to a sphere or circle with the same specific properties.

[0115] Here, with a fixed equivalent diameter of the matrix segment 11, the larger the equivalent diameter of the matrix strip 112, the larger its cross-sectional size. Furthermore, with a fixed equivalent diameter of the matrix segment 11, a larger equivalent diameter of the matrix strip 112 results in greater structural strength, reducing the likelihood of breakage and lowering processing difficulty. Conversely, a smaller equivalent diameter of the matrix strip 112 leads to a greater number of matrix strips, further facilitating the formation of stable airflow channels 114 between adjacent matrix strips, thereby improving suction stability.

[0116] By making the equivalent diameter of some substrate strips 112 less than 1 mm and the equivalent diameter of other substrate strips 112 in the range of 1 mm to 3 mm, the cross-sectional dimensions of some substrate strips 112 can be different from those of other substrate strips 112 to adapt to different heating environments.

[0117] In some embodiments, as shown in Figures 3 and 4, the cross-sectional area of ​​the second ventilation zone 15 is less than or equal to the cross-sectional area of ​​the first ventilation zone 134.

[0118] The flow cross-sectional area refers to the cross-sectional area of ​​the plane perpendicular to the fluid velocity in the ventilation zone when the fluid passes through it. The size of the flow cross-sectional area affects the flow rate and velocity of the fluid.

[0119] In this embodiment, the cross-sectional area of ​​the second ventilation zone 15 is less than or equal to the cross-sectional area of ​​the first ventilation zone 134. Therefore, the air intake of the first ventilation zone 134 is greater than that of the second ventilation zone 15. The first ventilation zone 134 is the main ventilation zone, and the second ventilation zone 15 is the auxiliary ventilation zone. Their combined operation increases the airflow, which cools the aerosol and reduces the transport temperature of the extracted aerosol. Furthermore, by controlling the cross-sectional parameters and positional relationship of the first ventilation zone 134 and / or the second ventilation zone 15, the air intake ratio between the distal and proximal ends of the aerosol-generated product 10 can be altered, thus affecting the generation and flow of the aerosol, thereby improving the extraction efficiency and taste.

[0120] For example, the heating element 22 has a heating chamber in which at least a portion of the aerosol generating article 10 is housed. A first ventilation zone 134 is located outside the heating chamber, and a second ventilation zone 15 is located within the heating chamber. A gap exists between the circumferential sidewall of the aerosol generating article 10 and the sidewall of the heating chamber, and the second ventilation zone 15 communicates with the outside through the gap.

[0121] When the aerosol generating product 10 is heated by the aerosol generating system 100, the first ventilation zone 134 is outside the heating chamber of the heating element 22, and the second ventilation zone 15 is inside the heating chamber of the heating element. There is a gap between the aerosol generating product 10 and the heating chamber, which allows some gas to enter the second ventilation zone 15 through the gap, and then be carried out by the medium and finally the aerosol generated by the matrix section 11.

[0122] In some embodiments, as shown in Figures 3 and 4, the distance between the first ventilation zone 134 and the distal lip of the second functional segment 14 is in the range of 25 mm to 40 mm.

[0123] The distance between the distal lip of the first ventilation zone 134 and the second functional section 14 can be, for example, a point value of any one of 25mm, 26mm, 27mm, 28mm, 29mm, 30mm, 31mm, 32mm, 33mm, 34mm, 35mm, 36mm, 37mm, 38mm, 39mm, or 40mm, or a point value between any two of them.

[0124] This distance range balances the spatial allocation of each functional segment. The aerosol generating product 10 is composed of multiple functional segments arranged sequentially. The distance of 25mm to 40mm prevents the ventilation area from getting too close to the second functional segment 14 and squeezing the space of other functional segments, while also preventing the overall product from becoming too long due to excessive distance. This is conducive to the compactness and practicality of the aerosol generating product 10 structure, making it easy to carry and use.

[0125] In some embodiments, the distance between the first ventilation zone 134 and the near-lip end of the matrix segment 11 is greater than or equal to 15 mm.

[0126] The distance between the first ventilation zone 134 and the near-lip end of the matrix section 11 can be, for example, a point value of any one of 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 23mm, 24mm, 25mm, 26mm, 27mm, 28mm, 29mm, or 30mm, or a point value between any two of them.

[0127] When the first ventilation zone 134 is too close to the near lip of the substrate section 11, the air entering the aerosol-generating product 10 from the first ventilation zone 134 will be heated. On the one hand, the heat conduction and convection of the hot and cold air will affect the energy utilization rate of the substrate section 11 during heating. On the other hand, the increased temperature of the cold air entering through the ventilation zone will also affect its cooling effect on the aerosol. When the ventilation zone is too close to the substrate section 11, the convergence of hot and cold air can easily lead to serious condensation problems near the ventilation zone.

[0128] By setting the distance between the first ventilation zone 134 and the near-lip end of the matrix section 11 to be greater than or equal to 15 mm, it is beneficial to improve the energy utilization rate of the matrix section 11 when it is heated and to improve the cooling effect of the air entering the aerosol generating product 10 on the aerosol.

[0129] In some embodiments, please refer to Figures 3 and 4. The aerosol generating article 10 includes a wrapping layer 12, which wraps around the outer surfaces of the matrix segment 11, the first functional segment 13, and the second functional segment 14. The wrapping layer 12 is provided with a vent, which at least partially overlaps with the first ventilation zone 134 and the second ventilation zone 15.

[0130] The vents allow external air to enter the interior of the product, or allow internal air to pass through the wrapping layer 12 into the first ventilation zone 134 and the second ventilation zone 15. Here, the vents at least partially overlap with the first ventilation zone 134 and the second ventilation zone 15, that is, the area of ​​the vents partially overlaps with the areas of the first ventilation zone 134 and the second ventilation zone 15, allowing air to smoothly enter the first ventilation zone 134 and the second ventilation zone 15 through the vents, or to be exhausted to the outside through them.

[0131] For example, the encapsulation layer 12 includes a first encapsulation layer 121. In the encapsulation layer 12, the first encapsulation layer 121 encapsulates part of the outer surface of the matrix segment 11 and the first functional segment 13, which can serve to fix and protect the internal structure and maintain the shape of the product.

[0132] The first encapsulation layer 121 at least partially overlaps with the first ventilation zone 134 and the second ventilation zone 15. Outside air can enter the hollow channel 1311 from the avoidance area through the ventilation zone, mix with the aerosol, and achieve the ventilation function of the ventilation zone.

[0133] The specific material of the wrapping layer 12 is not specified here.

[0134] For example, the material of the wrapping layer 12 is one or more of paper, paper tube, tin foil, aluminum foil, and aluminum foil composite paper.

[0135] For example, the wrapping layer 12 may be bottom-ventilated or bottom-sealed.

[0136] For example, the wrapping layer 12 includes an airtight material. The first wrapping layer 121 can have ventilation openings in the ventilation area to avoid the ventilation area, while in other areas, because the wrapping layer 12 is an airtight material, outside air can only enter the ventilation area through the ventilation openings, which helps guide air from the ventilation area into the aerosol-generating article 10. Furthermore, the wrapping layer 12 can isolate most of the aerosol-generating article 10 from the outside, which also helps to prevent moisture damage to the aerosol-generating article 10.

[0137] For example, the hollow tube segment 131 is entirely composed of a porous structure, and the covering layer 12 is made of an airtight material. The first covering layer 121 is provided with a ventilation opening to allow outside air to enter. Except for the area where the ventilation opening is provided, the first covering layer 121 covers the entire hollow tube segment 131. The area of ​​the hollow tube segment 131 on the first covering layer 121 where the ventilation opening is provided is the ventilation zone.

[0138] For example, the hollow tube section 131 has a porous structure only in the ventilation area, the wrapping layer 12 avoids the ventilation area in the ventilation area, and the rest of the wrapping layer wraps part or all of the hollow tube section 131.

[0139] Currently, most heated tobacco products (HNB) on the market have a ventilation area, primarily to optimize heating efficiency, control airflow, and improve the user experience. However, the ventilation area on most HNB cigarettes is currently achieved by drilling holes in the cigarette. This adds an extra drilling process, impacting production efficiency and increasing production input and costs. Furthermore, current drilling methods mainly use cold-source lasers, which burn the area to be drilled to create a cavity. This process is prone to producing residual odors, affecting the taste of the cigarette.

[0140] The aerosol-generating article 10 provided in this disclosure features a hollow tube segment 131 with at least a portion of its circumferential wall having a porous structure to create a ventilation zone. During packaging, a structure that avoids the ventilation zone is provided on the first wrapping layer 121. This allows external air to enter the interior of the hollow tube segment 131 through the porous structure of the ventilation zone, facilitating aerosol generation. The ventilation zone design of this disclosure eliminates the need for separate perforation to form the ventilation zone, simplifying the process of the aerosol-generating article 10 and thus reducing production costs.

[0141] In some embodiments, the porosity of the wall of the hollow tube section 131 is in the range of 20% to 90%.

[0142] The porosity of the wall of the hollow pipe section 131 can be, for example, a point value of any one of 20%, 25%, 30%, 35%, 40%, 45%, 50%, 55%, 60%, 65%, 70%, 75%, 80%, 85%, 90%, or a point value between any two.

[0143] The porosity of the hollow tube segment 131 is set within a suitable range of 20% to 90%. A minimum porosity of 20% prevents the tube wall from becoming too fragile due to excessive porosity, maintaining the basic structural shape and strength of the hollow tube segment 131 and mitigating damage during processing, transportation, and use. A maximum porosity of 90% maximizes airflow while ensuring basic structural stability. Furthermore, a suitable porosity allows for a good ratio between the amount of air entering and the amount of aerosol, promoting thorough mixing. If the porosity is too low (below 20%), insufficient air intake will result in ineffective aerosol dilution, affecting the taste; if the porosity is too high (above 90%), excessive air will lead to an excessively low aerosol concentration.

[0144] In some embodiments, the length of the hollow tube segment 131 is greater than or equal to 15 mm and less than or equal to 20 mm.

[0145] The length of the hollow tube section 131 can be any one of 15mm, 16mm, 17mm, 18mm, 19mm, or 20mm, or any combination thereof.

[0146] 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.

[0147] In some embodiments, the equivalent outer diameter of the hollow tube segment 131 is less than or equal to 7.2 mm.

[0148] The equivalent outer diameter of the hollow tube section 131 can be, for example, a point value of any one of 1mm, 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, or 7.2mm, or a point value between any two of them.

[0149] For example, the equivalent outer diameter of the hollow tube segment 131 is greater than or equal to 4 mm or less than or equal to 7.2 mm.

[0150] The equivalent outer diameter of the hollow tube section 131 can be, for example, a point value of any one of the following: 4mm, 4.1mm, 4.2mm, 4.3mm, 4.4mm, 4.5mm, 4.6mm, 4.7mm, 4.8mm, 4.9mm, 5.0mm, 5.1mm, 5.2mm, 5.3mm, 5.4mm, 5.5mm, 5.6mm, 5.7mm, 5.8mm, 5.9mm, 6.0mm, 6.1mm, 6.2mm, 6.3mm, 6.4mm, 6.5mm, 6.6mm, 6.7mm, 6.8mm, 6.9mm, 7.0mm, 7.1mm, 7.2mm, or a point value between any two.

[0151] The equivalent outer diameter of the hollow tube segment 131 is greater than or equal to 4 mm, ensuring sufficient space within the hollow channel 1311 to provide an adequate path for aerosol transport. This mitigates the obstruction and increased pressure caused by excessively narrow channels, facilitating aerosol transport from the matrix segment 11 to the near-lip end. An equivalent outer diameter of less than or equal to 7.2 mm allows the thickness of the hollow tube segment 131 to match the overall size of the aerosol-generating article 10. If the tube segment is too thick (equivalent outer diameter greater than 7.2 mm), the entire article would be too bulky, making it inconvenient for users to hold and carry. This limitation improves the portability and comfort of the aerosol-generating article 10.

[0152] In some embodiments, the hardness of the hollow tube segment 131 is greater than or equal to 70%.

[0153] Here, the hardness of the hollow tube section 131 refers to its radial hardness. Radial hardness is a mechanical property index of the hollow tube section 131 that reflects its local resistance to indentation deformation and its ability to resist surface deformation under pressure.

[0154] The radial hardness of the hollow tube section 131 can be measured by the indentation method: apply radial pressure to the surface of the hollow tube section 131 and calculate the hardness value based on the indentation depth or area.

[0155] By setting the radial hardness of the hollow tube segment 131 to be greater than or equal to 70%, the structural strength and stability of the hollow tube segment 131 can be taken into account while ensuring the porosity of the hollow tube segment 131.

[0156] In some embodiments, the wall thickness of the hollow tube segment 131 is greater than or equal to 1.5 mm, for example, it can be any one of 1.5 mm, 1.6 mm, 1.7 mm, 1.8 mm, 1.9 mm, 2.0 mm, 2.1 mm, 2.2 mm, 2.3 mm, 2.4 mm, 2.5 mm, 2.6 mm, 2.7 mm, 2.8 mm, 2.9 mm, 3.0 mm, or any value between two of them.

[0157] Setting the wall thickness of the hollow tube section 131 within the above-mentioned range is beneficial to improving the structural strength of the hollow tube section 131.

[0158] In some embodiments, the mass ratio of the hollow tube segment 131 to the volume ratio of the hollow channel 1311 is greater than or equal to 1 mg / mm². 3 For example, it could be 1.0 mg / mm 3 1.1 mg / mm 3 1.2 mg / mm 3 1.3 mg / mm 3 1.4 mg / mm 3 1.5 mg / mm 31.6 mg / mm 3 1.7 mg / mm 3 1.8 mg / mm 3 1.9 mg / mm 3 2.0 mg / mm 3 2.1 mg / mm 3 2.2 mg / mm 3 2.3 mg / mm 3 2.4 mg / mm 3 2.5 mg / mm 3 2.6 mg / mm 3 2.7 mg / mm 3 2.8 mg / mm 3 2.9 mg / mm 3 3.0 mg / mm 3 The point value of any one of them or the point value between any two.

[0159] In this way, while forming a hollow channel 131 of sufficient size, the mass of the hollow tube section 131 can be controlled.

[0160] In some embodiments, the hollow tube section 131 is made of at least one of cellulose acetate, cellulose acetate propionate, polylactic acid, and polyethylene terephthalate.

[0161] In this embodiment, the hollow tube segment 131 is made of the aforementioned materials. Thus, the tube wall of the hollow tube segment 131 can form a porous structure, which is beneficial for the hollow tube segment 131 to directly form a ventilation zone during the molding process, and helps to simplify the process of generating the aerosol product 10.

[0162] In some embodiments, the volume of the hollow channel 1311 is less than or equal to 250 mm². 3 .

[0163] The volume of the hollow channel 1311 can be 15mm. 3 20mm 3 25mm 3 30mm 3 35mm 3 40mm 3 45mm 3 50mm 3 55mm 3 60mm 3 65mm 3 70mm 3 75mm 3 80mm 3 85mm 3 90mm3 95mm 3 100mm 3 105mm 3 110mm 3 115mm 3 120mm 3 125mm 3 130mm 3 135mm 3 140mm 3 145mm 3 150mm 3 155mm 3 160mm 3 165mm 3 170mm 3 175mm 3 180mm 3 185mm 3 190mm 3 195mm 3 200mm 3 205mm 3 210mm 3 215mm 3 220mm 3 225mm 3 230mm 3 235mm 3 240mm 3 245mm 3 250mm 3 The point value of any one of them or the point value between any two.

[0164] The volume of the hollow channel 1311 is set within the above range. At this time, the inner diameter of the hollow channel 1311 is small, which can generate a large airflow velocity during suction. On the one hand, it can increase the extraction of flue gas and increase the amount of smoke drawn, and on the other hand, it can also achieve a good cooling effect.

[0165] In some embodiments, 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. Exemplarily, 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.

[0166] The equivalent aperture of the hollow channel 1311 is the inner diameter of the hollow channel 1311.

[0167] For example, the inner diameter of the hollow channel 1311 is less than or equal to 3 mm, and can be any one of 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1.0 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, 1.5 mm, 1.6 mm, 1.7 mm, 1.8 mm, 1.9 mm, 2.0 mm, 2.1 mm, 2.2 mm, 2.3 mm, 2.4 mm, 2.5 mm, 2.6 mm, 2.7 mm, 2.8 mm, 2.9 mm, or 3.0 mm, or a value between any two.

[0168] 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).

[0169] 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.

[0170] 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.

[0171] 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.

[0172] 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).

[0173] In some embodiments, the matrix strip 112 includes an aerosol forming agent, the weight of which ranges from 15% to 30% based on the dry weight of the matrix strip 112.

[0174] 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.

[0175] Aerosol forming agents are used to form aerosols.

[0176] 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.

[0177] 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 15% to 30%, 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.

[0178] In some embodiments, the length of the substrate strip 112 is in the range of 8 mm to 20 mm.

[0179] 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.

[0180] In some embodiments, the length of the matrix strip 112 accounts for at least 25% of the total length of the aerosol-generating article 10.

[0181] 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.

[0182] 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.

[0183] 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 .

[0184] 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 3 1260mg / 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.

[0185] Here, when the density of matrix strip 112 is greater than 1500 mg / cm³ 3 At this time, the matrix segment 11 may have a large suction resistance and a large heat capacity, resulting in a small initial amount of smoke drawn in, which greatly limits the generation and migration of aerosols. When the density of the matrix strip 112 is less than 1000 mg / cm³, 3 At the same time, it may result in insufficient stiffness of the matrix segment 11, a smaller amount of smoke in the later stages of inhalation, poor consistency of the matrix segment 11, and low inhalation satisfaction.

[0186] 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.

[0187] In some embodiments, please refer to Figures 2 to 4, an airflow channel 114 is formed between adjacent matrix strips 112, the airflow channel 114 extends along the length direction of the matrix segment 11, and the second ventilation zone 15 is directly connected to the airflow channel 114.

[0188] The number of airflow channels 114 can be one or more.

[0189] When the matrix segment 11 is formed by winding or gathering the matrix segment 11, there is a certain gap between adjacent matrix strips 112, which can form an airflow channel 114.

[0190] 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.

[0191] The second ventilation zone 15 is connected to the airflow channel 114, and the airflow can directly enter the airflow channel 114 from the second ventilation zone 15 or flow from the airflow channel 114 to the second ventilation zone 15, realizing direct airflow exchange between the two.

[0192] The second ventilation zone 15 is directly connected to the airflow channel 114, which reduces the resistance of air entering the airflow channel 114, allowing air to enter the airflow channel 114 more quickly and efficiently from the second ventilation zone 15. This is beneficial for providing sufficient air to the matrix section 11 to participate in the generation and transmission of aerosols, improving ventilation efficiency and stable airflow, and thus helping to maintain stable aerosol flow and concentration, and improving the user experience.

[0193] In some embodiments, the porosity of the matrix segment 11 is greater than or equal to 18%.

[0194] For example, the porosity of the matrix segment 11 is greater than or equal to 30% and less than or equal to 60%.

[0195] 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.

[0196] 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.

[0197] 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.

[0198] In some embodiments, the second functional segment 14 includes a front plug segment with a length ranging from 5 mm to 9 mm.

[0199] 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 12; on the other hand, it can also effectively prevent the aerosol from condensing and flowing downwards and remaining in the containment chamber 21 of the aerosol generating device 20, thereby causing internal contamination of the containment chamber 21 and making it difficult to clean, and also preventing cross-contamination of flavors when drawing different flavored aerosol-generating products 10.

[0200] 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.

[0201] The length of the front plug section ranges from 5mm to 9mm.

[0202] The length of the front plug section can be any one of 5mm, 5.2mm, 5.5mm, 5.8mm, 6mm, 6.5mm, 6.8mm, 7mm, 7.2mm, 7.5mm, 8mm, 8.5mm, or 9mm, or any value between two of them.

[0203] When the length of the front plug segment is less than 5 mm, it is not conducive to the adsorption of the refluxed aerosol after the front plug segment finishes suction, which easily leads to the condensation of aerosol within the aerosol generating device 20. When the length of the front plug segment is greater than 9 mm, the suction resistance of the front plug segment is large, affecting the bottom air intake, which in turn leads to a decrease in aerosol carrying efficiency and a decline in suction experience. Therefore, setting the length of the front plug segment to 5 mm to 10 mm is more appropriate. Setting the length of the front plug segment to the range of 5 mm to 9 mm helps to reduce the probability of the matrix segment 11 falling out of the encapsulation layer 12, and can also reduce the size of the aerosol generating product 10.

[0204] For example, the forepump section is made of polymer materials such as PLA (Polylactic acid), PET (Polyethylene glycol terephthalate), and CA (Cellulose acetate).

[0205] Of course, in other embodiments, the second functional segment 14 and / or the first functional segment 13 may also include a suction resistance adjustment segment.

[0206] Here, the absorption resistance of the matrix segment 11 constitutes part of the overall absorption resistance of the aerosol-generating article 10.

[0207] For example, the first 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 inhaled by the user.

[0208] For example, the second functional segment 14 and / or the first functional segment 13 are columnar with a circular or elliptical cross-section. When the second functional segment 14 and / or the first functional segment 13 contain multiple functional segments with filtering and cooling effects, the longitudinal centers of the second functional segment 14 and / or the first functional segment 13 are coaxially aligned.

[0209] In some embodiments, 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.

[0210] For example, the absorption resistance of the matrix segment 11 and the aerosol generating article 10 can be tested according to GB / T22838.5-2024.

[0211] The unit of suction resistance can be millimeters of water column (mmH2O).

[0212] 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.

[0213] 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 second functional section 14 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.

[0214] 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.

[0215] 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.

[0216] In some embodiments, the aerosol generating article 10 includes a first functional segment 13, a matrix segment 11, and a second functional segment 14 arranged sequentially. The matrix segment 11 is used to generate aerosols. By setting the first functional segment 13 and the second functional segment 14 such that the second functional segment 14 is located at the distal lip end of the matrix segment 11 and the first functional segment 13 is located at the proximal lip end of the matrix segment 11, that is, the second functional segment 14 and the first 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 resistance adjustment, cooling, support, or filtration on the aerosol generating article 10.

[0217] In some embodiments, at least one of the suction resistance of the second functional segment 14 and the suction resistance of the matrix segment 11 is less than the suction resistance of the first functional segment 13.

[0218] The absorption resistance of the second functional segment 14 can be less than that of the first functional segment 13, or the absorption resistance of the matrix segment 11 can be less than that of the first functional segment 13, or both the absorption resistance of the second functional segment 14 and the absorption resistance of the matrix segment 11 can be less than that of the first functional segment 13.

[0219] The second functional section 14 is located at the distal lip of the matrix section 11, that is, the second functional section 14 is equivalent to the main air inlet of the aerosol generation product 10. Therefore, by setting the suction resistance of the second functional section 14 to be less than that of the first functional section 13, it is beneficial to increase the air intake of the aerosol generation product 10, thereby facilitating the extraction of aerosols.

[0220] By setting the suction resistance of the matrix section 11 to be less than that of the first functional section 13, the air intake of the second functional section 14 can smoothly enter the matrix section 11, which can quickly carry out aerosols and is conducive to the uniform, stable, and high-burst release of aerosols.

[0221] In this embodiment, by setting the suction resistance of the second functional segment 14 and the matrix segment 11 to be both lower than that of the first functional segment 13, it is beneficial to increase the air intake of the aerosol generation product 10. This allows the air intake of the second functional segment 14 to smoothly enter the matrix segment 11, facilitating the uniform and stable release of the aerosol. Meanwhile, the suction resistance of the first functional segment 13 is relatively larger than that of the second functional segment 14 and the matrix segment 11, which facilitates aerosol extraction, adjusts the user's inhalation experience, and ensures comfort. By ensuring a larger suction resistance of the first functional segment 13 and a smaller suction resistance of the second functional segment 14 and the matrix segment 11, and maintaining a suitable overall suction resistance for the aerosol generation product 10, high burst and stable release of the aerosol are guaranteed, while also improving inhalation comfort and increasing user satisfaction.

[0222] In some embodiments, the suction resistance of the matrix segment 11 is less than or equal to the suction resistance of the second functional segment 14.

[0223] 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 second functional segment 14, 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 second functional segment 14 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 second functional segment 14 to a certain extent, thereby facilitating the extraction of aerosols and improving the utilization rate of aerosols.

[0224] In some embodiments, the suction resistance of the second functional segment 14 is greater than 0 and less than or equal to 5 mm of water column.

[0225] By making the suction resistance of the second functional section 14 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 extraction of aerosols. It also makes the suction resistance of the aerosol generating product 10 appropriate, improving the user experience.

[0226] In some embodiments, the suction resistance of the first functional segment 13 is greater than or equal to 10 mm water column and less than or equal to 50 mm water column.

[0227] The suction resistance of the first 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.

[0228] Since the suction resistance of the first 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 instability in aerosol output, thus improving the suction experience and user comfort. Furthermore, it also helps to improve the filtration and / or cooling effect of the aerosol.

[0229] In some embodiments, the second functional segment 14, the matrix segment 11, and the first functional segment 13 are cylinders and coaxially arranged, and the arrangement direction of the second functional segment 14, the matrix segment 11, and the first functional segment 13 is the axial direction of the second functional segment 14, the matrix segment 11, and the first functional segment 13.

[0230] By setting the second functional segment 14, the matrix segment 11 and the first functional segment 13 as cylinders and arranging them sequentially along the axial direction of the second functional segment 14, the matrix segment 11 and the first functional segment 13, the structure of the aerosol generating product 10 can be made more compact, improving the user experience.

[0231] In some embodiments, referring to FIG2, the first functional segment 13 includes a filter segment 132, which is disposed on the side of the hollow tube segment 131 opposite to the matrix segment 11. The wrapping layer 12 includes a first wrapping layer 121 and a second wrapping layer 122. The first wrapping layer 121 wraps around the outer surfaces of a portion of the hollow tube segment 131, the matrix segment 11, and the second functional segment 14. The second wrapping layer 122 wraps around at least the outer surface of the filter segment 132. The ventilation area is located between the first wrapping layer 121 and the second wrapping layer 122.

[0232] Here, the first functional section 13 includes a filtration section 132. The aerosol generated by the heated aerosol generating product 10 flows through the hollow channel 1311 and then through the filtration section 132. The filtration section 132 can filter out large particles and unwanted impurities in the aerosol. In other words, the aerosol generated by the heated aerosol generating product 10 is filtered through the filtration section 132 before being drawn in by the user.

[0233] Please refer to Figures 2 and 3. In an embodiment where the first 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.

[0234] 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.

[0235] 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.

[0236] For example, please refer to Figure 2. The first 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.

[0237] This helps to optimize the suction performance of the aerosol-generated product 10.

[0238] The first wrapping layer 121 wraps around the outer surfaces of the partially hollow tube segment 131, the matrix segment 11, and the second functional segment 14. The first wrapping layer 121 fixes these parts together to form a pre-assembled component, which can be transferred and assembled as a whole pre-assembled component in subsequent manufacturing processes.

[0239] The second wrapping layer 122 wraps around at least the outer surface of the filter section 132, and serves to fix and protect the filter section 132.

[0240] For example, one end of the second wrapping layer 122 wraps the filter section 132, and the other end wraps the pre-assembled component formed by the first wrapping layer 121, which serves to connect the filter section 132 and ultimately form an aerosol product.

[0241] For example, the colors of the first wrapping layer 121 and the second wrapping layer 12 can be distinguished to facilitate user identification of upstream and downstream, ensuring that the cigarette insertion direction is correct.

[0242] The ventilation zone is located in the gap between the first wrapping layer 121 and the second wrapping layer 122, which facilitates the entry of outside air.

[0243] The first encapsulation layer 121 encapsulates the hollow tube segment 131, the matrix segment 11, and the second functional segment 14. The second encapsulation layer 122 encapsulates the filter segment 132. The two encapsulation layers 12, when used separately, tightly connect the functional segments into a unified whole, preventing loosening or separation of components during use. This improves the stability and integrity of the aerosol-generated product 10 structure. The layered encapsulation design and segmented structural layout facilitate the assembly and fixation of components during production, reducing manufacturing complexity.

[0244] 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.

[0245] Example 1

[0246] An aerosol generation product with two ventilation zones, a matrix section length of 12 mm, and a medium strip density of 1137 g / cm³. 3 The hollow tube has an outer diameter of 7.0 mm, an inner diameter of 4 mm, and a length of 17 mm. It is made of polyester fiber with a porosity of 85%. The first functional section has a height of 7 mm. The first ventilation zone is located 29 mm away from the farthest lip end of the aerosol-generating product, and the ventilation level of the ventilation zone is 15%. The second ventilation zone is located at the junction between the matrix section and the second functional section and has a ventilation level of 7%.

[0247] Example 2

[0248] An aerosol generation product with two ventilation zones, a matrix section length of 12 mm, and a medium strip density of 1137 g / cm³. 3The hollow tube has an outer diameter of 7.0 mm, an inner diameter of 4 mm, and a length of 17 mm. It is made of polyester fiber with a porosity of 85%. The first functional section has a height of 7 mm. The first ventilation zone is located 34 mm away from the farthest lip end of the aerosol-generating product, and the ventilation level of the ventilation zone is 25%. The second ventilation zone is located at the junction between the matrix section and the second functional section, and has a ventilation level of 7%.

[0249] Comparative Example 1

[0250] An aerosol generating product with a ventilation zone, a matrix section length of 12 mm, and a medium strip density of 1137 g / cm³. 3 The hollow tube has an outer diameter of 7.0 mm, an inner diameter of 4 mm, a length of 17 mm, and is made of polyester fiber with a porosity of 85%. The first functional section has a height of 7 mm. The first ventilation zone is located 29 mm away from the farthest lip end of the aerosol-generating product, and the ventilation level of the ventilation zone is 15%.

[0251] Comparative Example 2

[0252] An aerosol generation product with two ventilation zones, a matrix section length of 12 mm, and a medium strip density of 1137 g / cm³. 3 The hollow tube has an outer diameter of 7.0 mm, an inner diameter of 4 mm, and a length of 17 mm. It is made of polyester fiber with a porosity of 85%. The first functional section has a height of 7 mm. The first ventilation zone is located 29 mm away from the farthest lip end of the aerosol-generating product. The ventilation level of the ventilation zone is 15%. The second ventilation zone is located on the second functional section and has a ventilation level of 7%.

[0253] Comparative Example 3

[0254] An aerosol generation product with two ventilation zones, a matrix section length of 12 mm, and a medium strip density of 1137 g / cm³. 3 The hollow tube has an outer diameter of 7.0 mm, an inner diameter of 4 mm, and a length of 17 mm. It is made of polyester fiber with a porosity of 85%. The first functional section has a height of 7 mm. The first ventilation zone is located 29 mm away from the farthest lip end of the aerosol-generating product and has a ventilation level of 15%. The second ventilation zone is located on the matrix section and has a ventilation level of 7%.

[0255] Comparative Example 4

[0256] An aerosol generation product with two ventilation zones, a matrix section length of 12 mm, and a medium strip density of 1137 g / cm³. 3The hollow tube has an outer diameter of 7.0 mm, an inner diameter of 4 mm, and a length of 17 mm. It is made of polyester fiber with a porosity of 85%. The first functional section has a height of 7 mm. The first ventilation zone is located 20 mm away from the farthest lip end of the aerosol-generating product and has a ventilation level of 8%. The second ventilation zone is located between the matrix section and the first functional section and has a ventilation level of 7%.

[0257] Experimental data

[0258] Test 1:

[0259] The experimental subject was the matrix segment of Example 1.

[0260] Test conditions: 51-56% RH, 25℃, clean room, 2 seconds of pumping and 28 seconds of stopping, 10 pumps, 5 vials in total, all units are mg.

[0261] Table 1 Test Results

[0262] As can be seen from the results in Table 1, the average amount of smoke (aerosol) generated during the medium heating process in Example 1 was 7.56 mg / puff, the RSD (relative standard deviation) of smoke was 25.14%, the RSD (relative standard deviation) of nicotine was 14.59%, the first puff smoke was 6.22 mg / puff, and the overall average TPM was 7.56 mg / puff. This achieved a high initial burst of smoke, and the aerosol release was relatively sufficient throughout the entire vaping process, resulting in a good overall vaping experience.

[0263] Test 2:

[0264] The experimental subject was the matrix segment of Example 2.

[0265] Test conditions: Same as Test 1.

[0266] Table 2 Test Results

[0267] As shown in Table 2, the average amount of smoke (aerosol) generated during the medium heating process in Example 2 was 7.17 mg / puff, the RSD (relative standard deviation) of smoke was 24.12%, the RSD (relative standard deviation) of nicotine was 26.90%, the first smoke was 5.75 mg / puff, and the overall average TPM was 7.17 mg / puff, achieving a high initial smoke volume. At the same time, the aerosol release was relatively sufficient throughout the entire suction process. However, the first smoke volume and the overall average smoke volume were significantly lower than those in Example 1. This was mainly because as the position of the first ventilation zone moved upward, the distance between the ventilation zone and the nozzle became closer, and the ventilation level generated during the suction process became higher, resulting in a decrease in the amount of air entering through the matrix section, which affected the migration of aerosols.

[0268] Test 3:

[0269] The experimental subject was the matrix segment of Comparative Example 1.

[0270] Test conditions: Same as Test 1.

[0271] Table 3 Test Results

[0272] As shown in Table 3, compared with Example 1, the first puff of smoke generated during the medium heating process was 4.89 mg / puff, the average puff smoke (aerosol) was 6.03 mg / puff, the puff smoke RSD (relative standard deviation) was 23.31%, and the nicotine RSD (relative standard deviation) was 27.83%. This achieved a high initial burst of smoke, and the aerosol release was relatively sufficient throughout the entire suction process. However, the first puff smoke and the overall average smoke were significantly lower than those in Example 1. This was mainly because as the position of the first ventilation zone moved upward, the distance between the ventilation zone and the nozzle became closer, and the ventilation level generated during the suction process increased, resulting in less air intake through the matrix section, which affected the migration of aerosols.

[0273] Test 4:

[0274] The experimental subject was the matrix segment of Comparative Example 2.

[0275] Test conditions: Same as Test 1.

[0276] Table 4 Test Results

[0277] As shown in Table 4, compared with Example 2, the first smoke volume generated during the medium heating process was 4.95 mg / puff, the average smoke volume (aerosol) per puff was 6.17 mg / puff, the RSD (relative standard deviation) of the smoke volume per puff was 24.12%, and the RSD (relative standard deviation) of nicotine was 26.08%. This achieved a high burst of smoke volume in the early stage, and the aerosol release was relatively sufficient throughout the entire suction process. However, the first smoke volume and the overall average smoke volume were significantly reduced compared with Example 1. This is mainly because as the second ventilation zone is moved above the first functional section, the air intake of the ventilation zone will first pass through the first functional section and then flow through the matrix section, but cannot flow directly through the matrix section. The airflow rate and velocity generated by the intake will be affected, resulting in limited migration of aerosols.

[0278] Test 5:

[0279] The experimental subject was the matrix segment of Comparative Example 3.

[0280] Test conditions: Same as Test 1.

[0281] Table 5 Test Results

[0282] As shown in Table 5, compared with Example 3, the first puff of smoke generated during the medium heating process was 5.32 mg / puff, the average puff smoke volume (aerosol) was 6.63 mg / puff, the puff smoke volume RSD (relative standard deviation) was 24.71%, and the nicotine RSD (relative standard deviation) was 27.59%. This achieved a high initial smoke volume, and the aerosol release was relatively sufficient throughout the entire suction process. However, the first puff smoke volume and the overall average smoke volume were significantly lower than those in Example 1. This is mainly because as the second ventilation zone moved to the top of the matrix section, only a portion of the air intake in the ventilation zone flowed directly through the matrix section, which had a limited effect on the migration of the generated aerosols. However, the overall effect was better than that of the ventilation zone in the first functional section.

[0283] Test 6:

[0284] The experimental subject was the matrix segment of Comparative Example 4.

[0285] Test conditions: Same as Test 1.

[0286] Table 6 Test Results

[0287] As can be seen from the results in Table 6, compared with Example 4, the first smoke volume generated during the medium heating process was 4.21 mg / puff, the average smoke volume (aerosol) per puff was 5.72 mg / puff, the RSD (relative standard deviation) of the smoke volume per puff was 25.88%, and the RSD (relative standard deviation) of nicotine was 31.44%. The first smoke volume and the overall average smoke volume were significantly reduced compared with Example 1. This is mainly because as the first ventilation zone is closer to the matrix section, the air intake generated during the suction process is relatively limited, which greatly affects the migration of aerosols generated in the matrix section.

[0288] The above description is merely a preferred embodiment of this disclosure and is not intended to limit this disclosure. Various modifications and variations can be made to this disclosure by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure are included within the scope of protection of this disclosure.

Claims

1. An aerosol-generating article, comprising: The matrix segment is constructed by winding or aggregating aerosol matrix sheets; The first functional segment is located near the lip end of the matrix segment. The first functional segment includes a hollow tube segment with a hollow channel inside, and the circumferential sidewall of the hollow tube segment forms a first ventilation zone. The second functional segment is located at the distal lip of the matrix segment; The second ventilation zone is formed at the junction between the matrix section and the second functional section.

2. The aerosol-generating product according to claim 1, wherein, The aerosol matrix sheet includes a sheet-like matrix, which is an integral structure. The sheet-like matrix includes multiple matrix strips arranged in parallel, and at least one connecting region is formed between adjacent matrix strips. The connecting region connects the adjacent matrix strips. The aerosol matrix sheet can be heated to generate aerosol.

3. The aerosol-generating product according to claim 2, wherein, The cross-sectional area of ​​the second ventilation zone is less than or equal to the cross-sectional area of ​​the first ventilation zone.

4. The aerosol-generating product according to claim 2, wherein, The distance between the first ventilation zone and the distal lip of the second functional section is in the range of 25mm to 40mm; and / or, The distance between the first ventilation zone and the near-lip end of the matrix segment is greater than or equal to 15 mm.

5. The aerosol-generating product according to claim 2, wherein, The aerosol-generating product includes a coating layer that wraps around the outer surfaces of the matrix segment, the first functional segment, and the second functional segment. The coating layer is provided with ventilation openings that at least partially overlap with the first ventilation area and the second ventilation area.

6. The aerosol-generating product according to claim 2, wherein, The length of the hollow tube segment is greater than or equal to 15 mm and less than or equal to 20 mm, and the equivalent outer diameter of the hollow tube segment is less than or equal to 7.2 mm; and / or, The hardness of the hollow pipe section is greater than or equal to 70%.

7. The aerosol-generating product according to claim 2, 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 length of the substrate strip is in the range of 8 mm to 20 mm; 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 .

8. The aerosol-generating product according to claim 2, wherein, An airflow channel is formed between adjacent matrix strips, the airflow channel extending along the length of the matrix segment, and the second ventilation zone is directly connected to the airflow channel; and / or, The porosity of the matrix segment is greater than or equal to 18%.

9. The aerosol-generating article according to any one of claims 1 to 8, wherein, The second functional segment includes a front plug segment, the length of which is in the range of 5mm to 9mm.

10. An aerosol generation system, the aerosol generation system comprising an aerosol generation device and an aerosol generation article according to any one of claims 1 to 9, the aerosol generation device comprising a heating element for heating the aerosol generation article to generate an aerosol.

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