Aerosol-generating article and aerosol-generating system

Abstract

The present application belongs to the technical field of cigarette products, and discloses an aerosol-generating article and an aerosol-generating system. The aerosol-generating article comprises a wrapping component, as well as a filter component and a combined substrate component within at least part of the wrapping component. The combined substrate component comprises a first substrate component and a second substrate component adjacent to each other. A substrate filling amount of the first substrate component is higher than that of the second substrate component. The second substrate component is an integrated structure, and / or a deformation coefficient of the second substrate component is smaller than that of the first substrate component. The second substrate component enables heat to be transferred quickly, causing volatile components to volatilize quickly, and the first substrate component enables heat to be transferred more slowly, causing volatile components to volatilize slowly. The deformation coefficient of the second substrate component is smaller than that of the first substrate component, which is beneficial for the stability of draw resistance and airflow velocity, and combined with the second substrate component being an integrated structure, the stability of an aerosol can be further improved.

Description

An aerosol generating product and an aerosol generating system Cross-references to related applications

[0001] This application claims priority to Chinese Patent Application No. 2025101297935, filed on February 5, 2025, entitled “An Aerosol Generating Product and Aerosol Generating System”, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of cigarette product technology, and more specifically, to an aerosol generating product and an aerosol generating system. Background Technology

[0003] Heated cigarettes are a new type of tobacco product that uses a smoking device to provide a heat source to heat the core material (such as an aerosol forming matrix) made of tobacco raw materials. They are characterized by a lower release of harmful components than traditional cigarettes and can provide consumers with certain tobacco-like sensations.

[0004] Currently, most commercially available aerosol forming matrices are made from reconstituted tobacco leaves, granules, and shredded tobacco. Preparation methods for these matrices include rolling, slurry processing, dry processing, and papermaking. However, regardless of the method used, traditional aerosol forming matrices undergo significant deformation upon heating, resulting in large variations in draw resistance and poor airflow stability, leading to poor uniformity of aerosol concentration. For example, aerosol forming matrices prepared using the rolling or slurry methods exhibit high and stable aerosol concentrations in the later stages of heating and drawing, but lower concentrations in the first half. Similarly, aerosol forming matrices prepared using the dry or papermaking methods show high aerosol concentrations and rapid formation rates in the first half of heating and drawing, but their concentrations decrease significantly in the latter half. Therefore, improving the uniformity of aerosol concentration formed by the matrix and enhancing the aroma release uniformity of aerosol products is a pressing issue in this field. Summary of the Invention

[0005] This application provides an aerosol generating product and an aerosol generating system that can make the aerosol concentration formed by the matrix more uniform, thereby solving the technical problem of poor uniformity of aerosol concentration formed by the matrix.

[0006] This application provides an aerosol generating article comprising: an encapsulation component having a rod-shaped structure and having a proximal lip end and a distal lip end located upstream of the proximal lip end; and, within at least a portion of the encapsulation component, a filter component and a combined matrix component arranged sequentially from the proximal lip end to the distal lip end; wherein the combined matrix component includes adjacent first matrix component and second matrix component, with the first matrix component closer to the distal lip end and the second matrix component closer to the proximal lip end; the matrix filling amount of the first matrix component is higher than that of the second matrix component; the second matrix component is a one-piece structure, and / or, the deformation coefficient of the second matrix component is smaller than that of the first matrix component.

[0007] In an optional embodiment, the matrix filling amount of the first matrix component is ρ1, and the matrix filling amount of the second matrix component is ρ2, wherein 0.6 g / cm³ 3 ≤ρ1≤0.9g / cm 3 0.3g / cm 3 ≤ρ2<0.6g / cm 3 .

[0008] In an optional embodiment, the deformation coefficient of the second matrix component is less than or equal to 5%, and the deformation coefficient of the first matrix component is greater than 5%. Preferably, the deformation coefficient of the second matrix component is less than or equal to 1%, and the deformation coefficient of the first matrix component is greater than 1%. More preferably, the deformation coefficient of the second matrix component is equal to 0, and the deformation coefficient of the first matrix component is greater than 0.

[0009] In an optional embodiment, the suction resistance of the first matrix component is 10 to 80 Pa / mm, and the suction resistance of the second matrix component is 0 to 5 Pa / mm.

[0010] In an optional embodiment, the length ratio of the second matrix component to the combined matrix component is 0.4:1 to 0.8:1.

[0011] In an optional embodiment, the length ratio of the second matrix component to the combined matrix component is 0.5:1 to 0.6:1.

[0012] In an optional embodiment, the second matrix component has a plurality of through channels in the direction from the distal lip end to the proximal lip end; and the total cross-sectional area of ​​the through channels is 50% to 80% of the total cross-sectional area of ​​the second matrix component.

[0013] In an optional embodiment, the second matrix component has micropores, the total volume of which accounts for 10% to 30% of the total volume of the second matrix component.

[0014] In an optional embodiment, the pore size of the micropore is 20 nm to 50 nm.

[0015] In an optional embodiment, the aerosol generating article further includes a cooling support component disposed between the filter component and the combined matrix component.

[0016] In an optional embodiment, the cooling support component is provided with through holes along the radial direction of the wrapping component.

[0017] In an optional embodiment, the aerosol-generating article exhibits a draw resistance variation rate of 5% to 10% per mouth.

[0018] Another aspect of this application provides an aerosol generation system, including an aerosol generation article as described in any of the preceding claims and a heating device, wherein the heating device is adapted to heat the aerosol generation article and form an inhalable aerosol.

[0019] The aerosol generating article and aerosol generating system comprising the present application have a first matrix component with a higher matrix filling amount than the second matrix component. The lower filling amount of the second matrix component allows for relatively rapid heat transfer, which helps volatile components to evaporate quickly. The higher filling amount of the first matrix component allows for relatively slower heat transfer, which allows volatile components to evaporate slowly. Furthermore, the deformation coefficient of the second matrix component is smaller than that of the first matrix component, that is, the deformation coefficient of the second matrix component near the lip end is smaller. This results in a smaller rate of change in suction resistance per inhalation when the user inhales the aerosol generating article, which is more conducive to the stability of suction resistance and airflow velocity, thereby improving the stability of the aerosol. And / or, the second matrix component is an integral structure, which further ensures that its deformation before and after heating is small, or even non-deformed, further improving the stability of the aerosol.

[0020] In other words, by integrally molding the second matrix component into a one-piece structure and / or having a lower deformation coefficient, and ensuring its low matrix filling content, the second matrix component can rapidly release aerosols after the aerosol-generating product is heated, ensuring sufficient aerosol concentration during the initial inhalation phase. During the middle inhalation phase, the aerosols released simultaneously by the first and second matrix components interact and supplement each other to ensure uniform aerosol concentration. During the later inhalation phase, the low-filling second matrix component decays, while the volatile components of the high-filling first matrix component begin to volatilize in large quantities, thus compensating for the deficiencies in the last few inhalations. This ensures that the aerosol concentration generated by the entire aerosol-generating product remains essentially consistent during heating. Furthermore, the second matrix component located near the lip end (i.e. the end closest to the user's lips when inhaling) undergoes minimal or even negligible deformation before and after heating, thereby maintaining the stability of aerosol passage and ensuring uniform flow rate of aerosol (smoke) during inhalation, resulting in uniform aroma release of the product and enhancing the user experience. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 is a schematic diagram of the structure of the aerosol-generated article provided in the embodiment of this application;

[0023] Figure 2 is a schematic diagram of a first structure of the first matrix component in the aerosol generating article provided in the embodiment of this application;

[0024] Figure 3 is a schematic diagram of a second structure of the first matrix component in the aerosol generating article provided in the embodiment of this application;

[0025] Figure 4 is a schematic diagram of the first structure of the second matrix component in the aerosol-generating article provided in the embodiment of this application;

[0026] Figure 5 is a schematic diagram of a second structure of the second matrix component in the aerosol-generating article provided in the embodiments of this application;

[0027] Figure 6 is a schematic diagram of a third structure of the second matrix component in the aerosol generation product provided in the embodiments of this application;

[0028] Figure 7 is a schematic diagram of the first structure of the cooling support component in the aerosol-generating gel product provided in the embodiment of this application;

[0029] Figure 8 is a schematic diagram of the second structure of the cooling support component in the aerosol generation product provided in the embodiments of this application.

[0030] Icons: 10 - Combined matrix component; 11 - First matrix component; 111 - Pores; 112 - First aerosol matrix; 12 - Second matrix component; 121 - Through channel; 122 - Micropore; 123 - Second aerosol matrix; 20 - Encapsulation component; 30 - Filter component; 40 - Cooling support component; 41 - Through hole. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments and examples of this application will be clearly and completely described below. Where specific conditions are not specified in the embodiments or examples, they shall be performed under conventional conditions or conditions recommended by the manufacturer. Reagents or instruments whose manufacturers are not specified are all conventional products that can be purchased commercially.

[0032] The following is a detailed description of the aerosol generating products and aerosol generating systems provided in the embodiments and examples of this application.

[0033] Referring to Figure 1, the aerosol generating article provided in this application includes a wrapping component 20, which is a rod-shaped structure and has a proximal lip end and a distal lip end located upstream of the proximal lip end. In at least a portion of the wrapping component 20, a filter component 30 and a combined matrix component 10 are arranged sequentially from the proximal lip end to the distal lip end. The combined matrix component 10 includes an adjacent first matrix component 11 and a second matrix component 12, with the first matrix component 11 being closer to the distal lip end and the second matrix component 12 being closer to the proximal lip end.

[0034] In some embodiments, the matrix filling amount of the first matrix component 11 may be higher than that of the second matrix component 12. In other embodiments, the second matrix component 12 may be an integral structure. In still other embodiments, the deformation coefficient of the second matrix component 12 may be smaller than that of the first matrix component 11.

[0035] The matrix filling amount refers to the density obtained by dividing the mass of the matrix in the component by the overall volume of the component. For example, in some embodiments, the first matrix component 11 may include a first aerosol matrix 112, and the second matrix component 12 may include a second aerosol matrix 123; in other embodiments, the first matrix component 11 may also include a packaging component, such as wrapping paper, attached to the outside of the first aerosol matrix 112; the second matrix component 12 may also include a packaging component, such as wrapping paper, attached to the outside of the second aerosol matrix 123; therefore, the overall volume of the first matrix component 11 can be formed by the first aerosol matrix 112 or by the packaging component attached to the outside of the first aerosol matrix 112, and thus, the matrix filling amount of the first matrix component 11 can refer to the mass of the first aerosol matrix 112 divided by the overall volume of the first matrix component 11. Similarly, the overall volume of the second matrix component 12 can be formed by the second aerosol matrix 123 or by a package attached to the outside of the second aerosol matrix 123. Therefore, the matrix filling amount of the second matrix component 12 can refer to the mass of the second aerosol matrix 123 divided by the overall volume of the second matrix component 12.

[0036] An integral structure refers to a mechanism obtained by integrally molding raw materials. For example, raw materials can be integrally molded into an integral structure through processes such as injection molding, compression molding, or extrusion. For instance, extrusion molding involves adding mixed raw materials to an extruder, where the raw materials are pushed forward by the screw through the action between the extruder's barrel and screw, and the finished or semi-finished product with an integral structure is output through the die head. Regardless of whether the aforementioned second matrix component 12 includes packaging, the term "integrated structure" for the second matrix component 12 here refers to the second aerosol matrix 123 forming an integral structure, not to the second aerosol matrix 123 forming an integral structure with the packaging. That is, the packaging can form a non-integrated structure with the second aerosol matrix 123.

[0037] The deformation coefficient refers to the ratio of the volume change of the matrix component before and after heating. For example, if the volume of the matrix component before heating is defined as A, and the volume of the matrix component after heating is defined as B, then the deformation coefficient = [(AB) / A] × 100%. Here, the volume of the matrix component before and after heating refers to the volume formed by the matrix itself within the matrix component. For example, as mentioned earlier, when there is packaging outside the matrix, the deformation coefficient of the matrix component still refers to the volume formed by the matrix itself, not the volume formed by the packaging. Furthermore, the difference in deformation coefficients can depend on the different structures of the two components. For example, the first matrix component 11 can be a non-integral structure, while the second matrix component 12 can be an integrated structure, which would make the deformation coefficient of the second matrix component 12 smaller than that of the first matrix component 11. Of course, the difference in deformation coefficients can also depend on the different matrix compositions in the two components. For example, if the raw materials forming the matrix in the first matrix component 11 and the second matrix component 12 are different, or the content of each raw material is different, or the particle size of the raw materials is different, then the deformation coefficients of the first matrix component 11 and the second matrix component 12 will be different.

[0038] In the aerosol generating product proposed in this application embodiment, the matrix filling amount of the first matrix component 11 is higher than that of the second matrix component 12. The lower filling amount of the second matrix component 12 allows for relatively rapid heat transfer, which helps the volatile components to evaporate quickly. The higher filling amount of the first matrix component 11 allows for relatively slower heat transfer, which in turn allows the volatile components to evaporate slowly. Furthermore, the deformation coefficient of the second matrix component 12 is smaller than that of the first matrix component 11, that is, the deformation coefficient of the second matrix component 12 near the lip end is smaller. This results in a smaller rate of change in suction resistance per inhalation when the user inhales the aerosol generating product, which is more conducive to the stability of suction resistance and airflow velocity, thereby improving the stability of the aerosol. And / or, the second matrix component 12 is an integral structure, which further ensures that its deformation before and after heating is small, or even non-deformed, further improving the stability of the aerosol.

[0039] That is, by integrally molding the second matrix component 12 into a one-piece structure and / or having a lower deformation coefficient, and ensuring that it has a low matrix filling amount, after the aerosol generation product is heated, the second matrix component 12 can quickly release aerosols, ensuring that the aerosol concentration is sufficient during the initial stage of user inhalation. During the middle stage of user inhalation, the aerosols released simultaneously by the first matrix component 11 and the second matrix component 12 interact and supplement each other to ensure the uniformity of aerosol concentration. During the later stage of user inhalation, the low-filling second matrix component 12 decays, and the volatile components of the high-filling first matrix component 11 begin to volatilize in large quantities, thereby supplementing the deficiencies in the last few inhalations by the user, so that the concentration of aerosols generated by the entire aerosol generation product remains basically consistent when heated. Furthermore, the second matrix component 12 located near the lip end (i.e. the end closest to the user's inhalation lips) undergoes minimal or even negligible deformation before and after heating, thereby maintaining the stability of aerosol passage and ensuring uniform flow rate of aerosol (smoke) during inhalation, resulting in uniform aroma release of the product and enhancing the user experience.

[0040] In some optional embodiments, the matrix filling amount of the first matrix component 11 is ρ1, and the matrix filling amount of the second matrix component 12 is ρ2, wherein 0.6 g / cm³ 3 ≤ρ1≤0.9g / cm 3 0.3g / cm 3 ≤ρ2<0.6g / cm 3 .

[0041] The filling amount ρ1 of the first matrix component 11 can, for example, be 0.6 g / cm³. 3 0.65g / cm 3 0.7g / cm 3 0.75g / cm 3 0.8g / cm 3 0.85g / cm 3 or 0.9g / cm 3 etc., can also be 0.6 g / cm³ 3 ~0.9g / cm 3 Other values ​​within the range.

[0042] The matrix filling amount ρ2 of the second matrix component 12 can, for example, be 0.3 g / cm³. 3 0.35g / cm 3 0.4g / cm 3 0.45g / cm 3 0.5g / cm 3 0.55g / cm 3 or 0.59g / cm 3etc., can also be ≥0.3g / cm 3 And <0.6g / cm 3 Other values ​​within the range.

[0043] It should be noted that if the amount of matrix filling in the first matrix component 11 is less than 0.6 g / cm³, 3 This is not conducive to the sustained release of active ingredients, and the first aerosol matrix 112 inside is prone to detachment due to insufficient filling amount; if the filling amount of the matrix in the first matrix component 11 is greater than 0.9 g / cm³, it will hinder the continuous release of active ingredients. 3 This is detrimental to heat transfer, meaning the heat transfer efficiency will decrease. Under limited heating conditions, the effective components of the first aerosol matrix 112 are not easily volatilized, resulting in insufficient compensation for the aerosol (flue gas) concentration in the middle section of the product. If the matrix filling amount in the second matrix component 12 is less than 0.3 g / cm³, 3 The effective component of the second aerosol matrix 123 filled inside is too low to meet the concentration requirements of the product. Conversely, if the amount of matrix in the second matrix component 12 is too large, the heat transfer efficiency decreases, thus failing to meet the aerosol concentration requirements at the front end of the product, resulting in excessively low aerosol concentration in the early stage. Therefore, by limiting the amount of matrix in the first matrix component 11 and the second matrix component 12 to specific ranges, it is possible to prevent matrix shedding and improve the heat transfer efficiency of the matrix. This ensures that a relatively uniform and high aerosol concentration is maintained in the early, middle, and late stages of product heating, thereby improving the user's suction experience.

[0044] In optional embodiments, the deformation coefficient of the second substrate component 12 may be less than or equal to 5%, such as 5%, 4.5%, 4%, 3.5%, 3%, 2.5%, 2%, 1.5%, or 1%, or other values ​​within the range of less than or equal to 5%. In some preferred embodiments, the deformation coefficient of the second substrate component 12 may be less than or equal to 1%, such as 1%, 0.8%, 0.6%, 0.5%, 0.4%, 0.2%, or 0.1%. In some more preferred embodiments, the deformation coefficient of the second substrate component 12 may be equal to 0.

[0045] In some optional embodiments, the deformation coefficient of the first substrate component 11 can be greater than 5%, such as 5.1%, 5.5%, 6%, 6.5%, 8%, or 10%. In some preferred embodiments, the deformation coefficient of the first substrate component 11 can be greater than 1%, such as 1.1%, 1.5%, 2%, 3%, 4%, or 5%. In some more preferred embodiments, the deformation coefficient of the first substrate component 11 can be greater than 0, such as 0.1%, 0.5%, 0.8%, 0.9%, or 1%.

[0046] In some optional embodiments, the first matrix component 11 is a non-integral structure, while the second matrix component 12 is an integral structure, such that the coefficient of deformation of the second matrix component 12 is less than that of the first matrix component. In still other optional embodiments, both the first matrix component 11 and the second matrix component 12 may be integral structures, forming different raw material compositions and / or proportions of the matrix in the first matrix component 11 and the second matrix component 12. For example, the raw material for forming the second aerosol matrix 123 contains sugar or has a higher sugar content, while the raw material for forming the first aerosol matrix 112 does not contain sugar or has a lower sugar content, so that the coefficient of deformation of the second matrix component 12 is less than that of the first matrix component. In some alternative embodiments, the first matrix component 11 is a non-integral structure, while the second matrix component 12 is an integral structure. Furthermore, the raw material composition and / or proportions of the matrix forming the first matrix component 11 and the second matrix component 12 are different. For example, the raw material forming the second aerosol matrix 123 contains sugar or has a higher sugar content, while the raw material forming the first aerosol matrix 112 does not contain sugar or has a lower sugar content, so that the deformation coefficient of the second matrix component 12 is less than that of the first matrix component. Thus, by integrally molding the matrix into an integral structure and / or adjusting the raw material composition or proportions of the matrix forming, the first matrix component 11 and the second matrix component 12 have different deformation coefficients. The relationship between their deformation coefficients allows the entire aerosol-generating product to maintain a stable smoke rate and concentration during inhalation, improving the user's inhalation experience. In this process, by making the raw materials for forming the second aerosol matrix 123 contain sugar or have a higher sugar content, the matrix (second aerosol matrix) can be made stronger and have a smaller deformation coefficient after the raw materials are shaped and dried to form the matrix.

[0047] For example, the sugar content or sugar content mentioned above refers to the components in the raw materials that act as glycogen, or the content of the components that act as glycogen. For instance, if the raw materials for forming the first aerosol matrix 112 include tobacco powder, cellulose, flavorings, smoke-generating agents, and additives, and the raw materials for forming the second aerosol matrix 123 include tobacco powder, cellulose, liquid sugar, flavorings, smoke-generating agents, and additives, then the liquid sugar is sugar, and its content is the sugar content.

[0048] Generally, if the deformation coefficient of the second matrix component 12 is too large after heating, it will cause changes in the aerosol (smoke) airflow path during puffing, resulting in a high rate of change in the draw resistance of the aerosol-generated product, thus causing fluctuations in aerosol concentration and aroma. Therefore, by controlling the deformation coefficient of the second matrix component 12 to a specific range, it is possible to effectively ensure that the deformation coefficient of the second aerosol matrix 123 is small during heating, so that the airflow path of the aerosol generated by the first aerosol matrix and / or the second aerosol matrix to the user's lips (near the lip end of the product) remains almost unchanged during puffing, thus ensuring the stability and uniformity of aerosol concentration or aroma.

[0049] In some optional embodiments, the suction resistance of the first matrix component 11 can be 10–80 Pa / mm, such as 10 Pa / mm, 15 Pa / mm, 20 Pa / mm, 25 Pa / mm, 30 Pa / mm, 35 Pa / mm, 40 Pa / mm, 45 Pa / mm, 50 Pa / mm, 55 Pa / mm, 60 Pa / mm, 65 Pa / mm, 70 Pa / mm, 75 Pa / mm, or 80 Pa / mm, or other values ​​within the range of 10 Pa / mm to 80 Pa / mm. If the suction resistance of the first matrix component 11 is too low, the matrix may easily fall off; if the suction resistance of the first matrix component 11 is too high, the airflow may be obstructed. By controlling the suction resistance of the first matrix component 11 within the above range, it is beneficial to ensure that the entire aerosol generation product has a relatively stable suction resistance change rate.

[0050] In some alternative embodiments, the suction resistance of the second substrate component 12 can be 0 to 5 Pa / mm, such as 0 Pa / mm, 0.5 Pa / mm, 1 Pa / mm, 1.5 Pa / mm, 2 Pa / mm, 2.5 Pa / mm, 3 Pa / mm, 3.5 Pa / mm, 4 Pa / mm, 4.5 Pa / mm or 5 Pa / mm, or other values ​​within the range of 0 to 5 Pa / mm. By controlling the suction resistance of the second matrix component 12 within the aforementioned range, the suction resistance near the lip end can be sufficiently small. This facilitates the rapid flow of aerosols generated by the second aerosol matrix 123 in the early stage of heating to the lip end, allowing the user to quickly receive aerosols (smoke or aroma) in the early stage. It also facilitates the rapid flow of aerosols generated in the first matrix component 11 to the lip end, quickly compensating for the smaller amount of aerosols generated in the second matrix component 12 in the later stage. This prevents the user from experiencing a decrease in aerosol (smoke or aroma) concentration in the later stage of inhalation, thereby improving the overall concentration stability and uniformity of the aerosol-generated product and enhancing the user's inhalation experience.

[0051] Inhalation resistance refers to the resistance felt by a user when inhaling aerosol-generated products; that is, the ease or difficulty of drawing vapor from the aerosol product during inhalation. Inhalation resistance can be directly detected by a pressure sensor, or it can be calculated using a specific physical formula based on pressure changes detected by the pressure sensor and parameters such as flow rate. The physical formula is: Inhalation Resistance = (Pressure Change in Airway) / (Inhalation Flow Rate).

[0052] In the embodiments of this application, the length of the aerosol generating article as a whole or its various components is not limited. In some optional embodiments, the length of the aerosol generating article can be 40mm to 60mm, and the diameter can be 6.0mm to 7.8mm. In other optional embodiments, the length of the combined matrix component 10 can be 20% to 44% of the length of the aerosol generating article. Therefore, the length of the aerosol generating article as a whole or the combined matrix component can be adjusted according to actual needs to ensure that the aerosol generation amount meets the user's requirements and improves the applicability of the aerosol generating article.

[0053] In some alternative embodiments, the length ratio of the second matrix component 12 to the length of the combined matrix component 10 can be from 0.4:1 to 0.8:1, such as 0.4:1, 0.45:1, 0.5:1, 0.55:1, 0.6:1, 0.65:1, 0.7:1, 0.75:1, or 0.8:1, or other values ​​within the range of 0.4:1 to 0.8:1. In some more preferred embodiments, the length ratio of the second matrix component 12 to the length of the combined matrix component 10 is from 0.5:1 to 0.6:1. Typically, because the second matrix component 12 has a lower matrix content, if the length of the second matrix component 12 is too long and the corresponding length of the first matrix component 11 is too short, the first aerosol matrix 112 within the first matrix component 11 will be too small. This can easily lead to a significant decrease in the overall aerosol concentration or aroma generated by the aerosol product during the later stages of inhalation. In other words, if the content of the first aerosol matrix 112 is too low, it cannot compensate for the aerosol concentration during the later stages of inhalation (especially the later stages), thus affecting the user's inhalation experience. If the length of the second matrix component 12 is too short and the corresponding length of the first matrix component 11 is too long, the aerosol concentration transmitted through the second matrix component 12 will be too low. Even if the user receives a low aerosol concentration in the early stages of inhalation, it will also affect the user's initial inhalation experience. Therefore, by controlling the length ratio of the second matrix component 12 to the combined matrix component 10 within a certain range, that is, by controlling the lengths of the first matrix component 11 and the second matrix component 12 within a certain range, it is possible to effectively ensure the stability and uniformity of the aerosol concentration in the aerosol-generated product throughout the entire heating process, thereby improving the overall suction experience for users.

[0054] In this embodiment of the application, the first matrix component 11 contains a first aerosol matrix 112 (as shown in Figures 2 and 3), and the second matrix component 12 contains a second aerosol matrix 123 (as shown in Figures 4 to 6).

[0055] In some embodiments, the first aerosol matrix 112 within the first matrix component 11 may be a stacked structure in the form of filaments (as shown in FIG. 2) or sheets (as shown in FIG. 3). The specific stacking (arrangement) form may include at least one of ordered arrangement (as shown in FIG. 2) and random arrangement (as shown in FIG. 3). In other embodiments, the first aerosol matrix 112 in the first matrix component 11 may also be a one-piece structure, for example, a one-piece first aerosol matrix 112 may be formed by integral molding.

[0056] When the first aerosol matrix 112 in the first matrix component 11 is formed by stacking filamentary or sheet-like structures, the length of each filamentary or sheet-like matrix can be 3mm to 15mm, the width can be 0.6mm to 1.4mm, and the thickness can be 0.1mm to 0.4mm. If the length of the first aerosol matrix 112 is too short, the width too narrow, or the thickness too small, it will be difficult to process, and some matrix may fall off after stacking. If the length of the first aerosol matrix 112 is too long, the width too wide, or the thickness too large, the heat-receiving area will be small, which will reduce the overall smoke emission rate of the first aerosol matrix. Therefore, by limiting the length, width, or thickness of each filamentary or sheet-like matrix in the first aerosol matrix 112 to the above ranges, it is easy to process and prevents the matrix from falling off after stacking, while also ensuring the smoke emission efficiency of the matrix and improving the concentration and efficiency of the aerosol generated when heated.

[0057] In some alternative embodiments, the interior of the first matrix component 11 has a plurality of pores 111 extending from the distal lip to the proximal lip (as shown in Figures 2 and 3) to provide gas channels. It is understood that the pores 111 are the gaps between the first aerosol matrix components 112 after they are arranged together. The arrangement of the pores 111 ensures that the suction resistance of the first matrix component 11 is 10 Pa / mm to 80 Pa / mm.

[0058] In some optional embodiments, the second matrix component 12 has a plurality of through channels 121 extending from the distal lip to the proximal lip (as shown in Figures 4 to 6); and the total cross-sectional area of ​​the through channels 121 is 50% to 80% of the total cross-sectional area of ​​the second matrix component 12, such as 50%, 55%, 60%, 65%, 70%, 75%, or 80%, or other values ​​within the range of 50% to 80%. The arrangement of these through channels 121 facilitates the faster release and transport of aerosols generated when the aerosol-generating article is heated to the proximal lip.

[0059] By way of example, the cross-sectional shape of the aforementioned through channel 121 may include at least one of a circle, a near-circular shape, a rectangle, a square, and a polygon (with more than 4 sides).

[0060] In this embodiment of the application, the multiple through channels 121 within the second matrix component 12 may be spaced apart from each other, or some of the through channels 121 may be connected to each other; the sizes of the through channels 121 may be completely different, or at least partially the same. In addition, the shapes of the through channels 121 may be completely different, or at least partially the same.

[0061] In some embodiments, the cross-sectional shapes of the plurality of through channels 121 within the second matrix component 12 are the same, as shown in FIG4, and the cross-sectional shape of each through channel 121 is circular.

[0062] In some embodiments, the cross-sectional shapes of the plurality of through channels 121 within the second matrix component 12 may be partially different. As shown in FIG. 5, the plurality of through channels 121 within the second matrix component 12 includes a circular through channel with a circular cross-sectional shape located in the middle, and a plurality of fan-shaped through channels with a fan-shaped cross-sectional shape distributed circumferentially around the circular through channel. As shown in FIG. 6, the plurality of through channels 121 within the second matrix component 12 includes a circular through channel with a circular cross-sectional shape located in the middle, and a plurality of sickle-shaped through channels with a sickle-shaped cross-sectional shape distributed circumferentially at intervals in a counterclockwise direction around the circular through channel.

[0063] In some optional embodiments, the second matrix component 12 has micropores 122 (referring to Figures 4 and 6). These micropores 122 can be honeycomb-like, and their pore size is 20 nm to 50 nm, such as 20 nm, 25 nm, 30 nm, 35 nm, 40 nm, 45 nm, or 50 nm, or other values ​​within the 20 nm to 50 nm range. The total volume of the micropores 122 accounts for 10% to 30% of the total volume of the second matrix component 12, such as 10%, 15%, 20%, 25%, or 30%, or other values ​​within the 10% to 30% range. The arrangement of these micropores 122 facilitates the faster release and transport of aerosols generated when the aerosol-generating article is heated to the proximal lip.

[0064] In some optional embodiments, the filter element 30 can be a filter tip. The filter element 30 may include at least one of the following materials: cellulose acetate, polypropylene fiber, activated carbon, and flavoring additives. By providing the filter element, not only can matrix fragments or debris at the distal lip be prevented from entering the user's mouth, but harmful substances in the aerosol formed by the matrix can also be filtered or adsorbed, reducing the amount entering the user's mouth and respiratory tract, thereby reducing harm to the user's health. Furthermore, it can also appropriately supplement and adjust the draw resistance and taste of the aerosol-generated product to further enhance the user's inhalation experience.

[0065] In some alternative embodiments, the aerosol generating article may further include a cooling support component 40 disposed between the filter component 30 and the combined matrix component 10.

[0066] In some optional embodiments, the cooling support component 40 is provided with through holes 41 along the radial direction of the wrapping component 20 (as shown in Figures 7 and 8). Here, the radial direction of the wrapping component 20 is also the radial direction of the cooling support component 40, and the through hole 41 refers to a through hole penetrating the side wall of the cooling support component. The diameter or number of through holes 41 is not limited and can be adjusted according to actual needs. Thus, by providing through holes 41, external air can enter the cooling support component through the through holes to contact the aerosol therein, allowing the aerosol to be cooled more quickly, thereby preventing the aerosol entering the user's mouth through the filter component 30 from being too hot, and improving the user's suction experience.

[0067] By way of example, the number of through holes 41 can be 2 to 16, such as 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, or 16. The specific number of through holes 41 can be adjusted according to the actual situation. The shape of the through holes 41 can be circular or square, etc., by example but not limited to, and can be adjusted according to the actual situation.

[0068] In some optional embodiments, the rate of change in suction resistance per puff of the aerosol generating product is 5% to 10%, such as 5%, 6%, 7%, 8%, 9%, or 10%, or other values ​​within the range of 5% to 10%. By controlling the rate of change in suction resistance per puff of the aerosol generating product within the above range, it is possible to effectively ensure that the concentration of aerosol received by the user in each puff remains basically constant, thereby reducing concentration fluctuations and preventing the aerosol concentration from being sometimes too high and sometimes too low, thus improving the user's puffing experience.

[0069] The rate of change of suction resistance per breath refers to the change in suction resistance of a user during each breath of aerosol generated product, relative to the previous breath. It is usually expressed as a percentage or a specific numerical difference. For example, the rate of change of suction resistance per breath can be calculated by the following formula: Rate of change of suction resistance per breath = (current breath resistance - previous breath resistance) / previous breath resistance × 100%.

[0070] It should be noted that the materials of the aerosol matrix and other contents related to the filter component 30, the wrapping component 20 and the cooling support component 40 in this application can be referred to the relevant prior art, and will not be elaborated or limited here.

[0071] Furthermore, this application also provides an aerosol generation system, which includes the above-mentioned aerosol generation article and a heating device, wherein the heating device is adapted to heat the aerosol generation article and form an inhalable aerosol.

[0072] The features and performance of the embodiments of this application will be further described in detail below with reference to examples. Example 1

[0073] This embodiment provides an aerosol generating article, as shown in Figure 1, which includes a wrapping component 20, and a filter component 30, a cooling support component 40, and a combined matrix component 10 arranged sequentially from the proximal lip end to the distal lip end within the wrapping component 20.

[0074] The aerosol-generated product is 45 mm long and 7.3 mm in diameter.

[0075] The composite matrix component 10 includes a first matrix component 11 containing a first aerosol matrix 112 and a second matrix component 12 containing a second aerosol matrix 123. The first matrix component 11 and the second matrix component 12 are adjacent to each other, with the first matrix component 11 being closer to the distal lip and the second matrix component 12 being closer to the proximal lip. The first matrix component 11 is a non-integral structure, with the first aerosol matrix 112 inside it arranged in an orderly stacked strip shape (as shown in Figure 2), while the second matrix component 12 is an integral structure.

[0076] The first aerosol matrix 112 in the first matrix component 11 has a length of 7 mm, a width of 1.0 mm, a thickness of 0.2 mm, and a filling amount of 0.7 g / cm³ within the first matrix component 11. 3 The deformation coefficient of the first matrix component 11 is 6.0%. The interior of the first matrix component 11 has a plurality of pores 111 extending from the distal lip to the proximal lip, and the suction resistance of the first matrix component 11 is 120 Pa (approximately 17 Pa / mm).

[0077] The second matrix component 12 has a length of 8 mm, and its length ratio to that of the combined matrix component 10 is 0.53:1. The filling amount of the second matrix component 12 is 0.5 g / cm³. 3 The deformation coefficient of the second matrix component 12 is 0, and the absorption resistance of the second matrix component 12 is 0. The second matrix component 12 has multiple through channels 121 extending from the distal lip to the proximal lip. The cross-sectional shapes of the multiple through channels 121 within the second matrix component 12 are identical, and each through channel 121 has a circular cross-sectional shape (as shown in Figure 4). Along the radial direction of the encapsulating component 20, the total cross-sectional area of ​​the through channels 121 is 70% of the total cross-sectional area of ​​the second matrix component 12. The second matrix component 12 has honeycomb-like micropores 122, with a pore size of 35 nm. The total volume of the micropores 122 accounts for 10% of the total volume of the second matrix component 12.

[0078] Along the radial direction of the wrapping component 20, the cooling support component 40 is provided with four circular through holes 41 (as shown in Figure 7). Example 2

[0079] This embodiment provides an aerosol generating article, as shown in Figure 1, which includes a wrapping component 20, and a filter component 30, a cooling support component 40, and a combined matrix component 10 arranged sequentially from the proximal lip end to the distal lip end within the wrapping component 20.

[0080] The aerosol-generated product is 45 mm long and 7.3 mm in diameter.

[0081] The composite matrix component 10 includes a first matrix component 11 containing a first aerosol matrix 112 and a second matrix component 12 containing a second aerosol matrix 123. The first matrix component 11 and the second matrix component 12 are adjacent to each other, with the first matrix component 11 closer to the distal lip and the second matrix component 12 closer to the proximal lip. The first aerosol matrix 112 within the first matrix component 11 is arranged in an orderly strip-like pattern (as shown in Figure 2). The second matrix component 12 is a one-piece structure.

[0082] The first aerosol matrix 112 in the first matrix component 11 has a length of 5 mm, a width of 0.8 mm, a thickness of 0.2 mm, and a filling amount of 0.7 g / cm³ within the first matrix component 11. 3 The deformation coefficient of the first matrix component 11 is 7.0%. The interior of the first matrix component 11 has a plurality of pores 111 extending from the distal lip to the proximal lip, and the suction resistance of the first matrix component 11 is 20 Pa / mm.

[0083] The second matrix component 12 has a length of 10 mm, and its length ratio to that of the combined matrix component 10 is 0.66:1. The filling amount of the second matrix component 12 is 0.50 g / cm³.3 The deformation coefficient of the second matrix component 12 is 1%, and the absorption resistance of the second matrix component 12 is 3 Pa / mm. The second matrix component 12 has multiple through channels 121 extending from the distal lip to the proximal lip. The cross-sectional shapes of the multiple through channels 121 within the second matrix component 12 are not entirely identical, as shown in Figure 5. These multiple through channels 121 include a circular through channel with a circular cross-sectional shape located in the center, and multiple fan-shaped through channels with fan-shaped cross-sectional shapes distributed circumferentially around the circular through channel. Along the radial direction of the encapsulating component 20, the total cross-sectional area of ​​the through channels 121 is 50% of the total cross-sectional area of ​​the second matrix component 12. The second matrix component 12 has honeycomb-like micropores 122, with a pore size of 20 nm, and the total volume of the micropores 122 accounts for 20% of the total volume of the second matrix component 12.

[0084] Along the radial direction of the wrapping component 20, the cooling support component 40 is provided with four inwardly extending rectangular through holes 41 (as shown in Figure 8). Example 3

[0085] This embodiment provides an aerosol generating article, as shown in Figure 1, which includes a wrapping component 20, and a filter component 30, a cooling support component 40, and a combined matrix component 10 arranged sequentially from the proximal lip end to the distal lip end within the wrapping component 20.

[0086] The aerosol-generated product is 45 mm long and 7.3 mm in diameter.

[0087] The combined matrix component 10 includes a first matrix component 11 containing a first aerosol matrix 112 and a second matrix component 12 containing a second aerosol matrix 123. The first matrix component 11 and the second matrix component 12 are adjacent to each other, with the first matrix component 11 closer to the distal lip and the second matrix component 12 closer to the proximal lip. The first aerosol matrix 112 within the first matrix component 11 is arranged in a strip-like, irregular pattern (as shown in Figure 3). The second matrix component 12 is a single, integral structure.

[0088] The first aerosol matrix 112 in the first matrix component 11 has a length of 9 mm, a width of 1.2 mm, a thickness of 0.2 mm, and a filling amount of 0.9 g / cm³ within the first matrix component 11. 3 The deformation coefficient of the first matrix component 11 is 5.5%. The interior of the first matrix component 11 has a plurality of pores 111 extending from the distal lip to the proximal lip, and the suction resistance of the first matrix component 11 is 50 Pa / mm.

[0089] The second matrix component 12 has a length of 6 mm, which is 0.4:1 in length ratio to the combined matrix component 10. The filling amount of the second matrix component 12 is 0.6 g / cm³.3 The deformation coefficient of the second matrix component 12 is 5%, and the absorption resistance of the second matrix component 12 is 5 Pa / mm. The second matrix component 12 has multiple through channels 121 extending from the distal lip to the proximal lip. The cross-sectional shapes of these multiple through channels 121 are not entirely identical, as shown in Figure 6. These multiple through channels 121 include a central circular through channel with a circular cross-section and multiple sickle-shaped through channels arranged counterclockwise around the central circular through channel. Along the radial direction of the encapsulating component 20, the total cross-sectional area of ​​the through channels 121 is 80% of the total cross-sectional area of ​​the second matrix component 12. The second matrix component 12 has honeycomb-like micropores 122 with a pore size of 50 nm, and the total volume of the micropores 122 accounts for 30% of the total volume of the second matrix component 12.

[0090] Along the radial direction of the wrapping component 20, the cooling support component 40 is provided with four inwardly extending circular through holes 41. Comparative Example 1

[0091] The difference between this comparative example and Example 1 is that the total length of the matrix component remains unchanged, and it is entirely composed of the first matrix component 11. Comparative Example 2

[0092] The difference between this comparative example and Example 1 is that the total length of the matrix component remains unchanged, and it is entirely composed of the second matrix component 12. Comparative Example 3

[0093] The difference between this comparative example and Example 1 is that the matrix filling amount of the first matrix component 11 is equal to the matrix filling amount of the second matrix component 12, both being 0.5 g / cm³. 3 Comparative Example 4

[0094] The difference between this comparative example and Example 1 is that the matrix filling amount of the first matrix portion (0.5 g / cm³) is different. 3 The matrix filling amount is less than that of the second matrix component 12 (0.7 g / cm³). 3 Comparative Example 5

[0095] The difference between this comparative example and Example 1 is that the second matrix component 12 is not a one-piece structure, and the deformation coefficient of the second matrix component 12 is greater than or equal to the deformation coefficient of the first matrix component 11. Its preparation method is the same as that of the first matrix component 11. Experimental Example

[0096] The aerosol-generating products prepared in Examples 1-3 and Comparative Examples 1-5 were tested using an electronic cigarette smoke concentration tester. The test conditions were: smoking speed 17.5 m / s, inhalation volume 35 ml, inhalation time interval 13 s, and 13 puffs per cigarette.

[0097] During the smoking process, the aerosol concentration (smoke or aroma quantity) generated by the product was evaluated according to the sensory evaluation method for heat-not-burn products. The aerosol concentration (smoke quantity) for the first two puffs, the aerosol concentration (smoke quantity) for the last three puffs, and the uniformity of smoke release (uniformity of aerosol concentration throughout the heating process) for each example were recorded. The results are shown in the first three columns of Table 1. The rate of change of suction resistance for each example was measured using a suction resistance tester, and the fluctuation range of the rate of change of suction resistance for each puff was recorded. The results are shown in the last column of Table 1.

[0098] The test results are shown in Table 1: Table 1 Test Results

[0099] Because the rate of change of suction resistance for each aspiration is not exactly the same, the range of the rate of change of suction resistance for each aspiration in the last column of Table 1 is a unified record of the range of the rate of change of suction resistance for each aspiration based on the data of the rate of change of suction resistance for each aspiration. For example, in Table 1, the range of the rate of change of suction resistance for each aspiration in Example 1 is 5 to 7%, which means that the value of the rate of change of suction resistance for each aerosol product prepared in Example 1 falls within the range of 5 to 7%.

[0100] As can be seen from Table 1, compared with the comparative example, the aerosol generating product provided in this application embodiment can maintain a basically consistent aerosol concentration and uniform aroma (smoke, aerosol) release during the inhalation process, and the fluctuation range of the draw resistance change rate per puff is small, for example, within the range of 5 to 10%, which can effectively improve the user's inhalation experience.

[0101] In summary, by making the second matrix component 12 an integral structure and / or having a lower deformation coefficient, and ensuring its low matrix filling amount, the second matrix component 12 can quickly release aerosols after the aerosol-generating product is heated, ensuring sufficient aerosol concentration during the initial stage of user inhalation. During the middle stage of user inhalation, the aerosols released simultaneously by the first matrix component 11 and the second matrix component 12 interact and supplement each other to ensure uniform aerosol concentration. During the later stage of user inhalation, the low-filling second matrix component 12 decreases, while the volatile components of the high-filling first matrix component 11 begin to volatilize in large quantities, thereby supplementing the deficiencies in the last few inhalations. This ensures that the concentration of aerosols generated throughout the entire aerosol-generating product remains essentially consistent during heating. Furthermore, the second matrix component 12 located near the lip end (i.e. the end closest to the user's inhalation lips) undergoes minimal or even negligible deformation before and after heating, thereby maintaining the stability of aerosol passage and ensuring uniform flow rate of aerosol (smoke) during inhalation, resulting in uniform aroma release of the product and enhancing the user experience.

[0102] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application. Industrial applicability

[0103] The aerosol-generating product provided in this application can maintain a relatively constant aerosol concentration and uniform aroma (smoke and aerosol) release during inhalation, with a small fluctuation range in draw resistance per puff, effectively improving the user's inhalation experience. This aerosol-generating product is easy to prepare on an industrial scale and has good industrialization prospects.

Claims

1. An aerosol-generating product, characterized in that, include: The wrapping component is a rod-shaped structure with a proximal lip end and a distal lip end located upstream of the proximal lip end; as well as, Within at least a portion of the encapsulating component, a filter component and a combined matrix component are arranged sequentially from the proximal lip end to the distal lip end; wherein, The combined matrix component includes an adjacent first matrix component and a second matrix component, wherein the first matrix component is closer to the distal lip end and the second matrix component is closer to the proximal lip end; The matrix filling amount of the first matrix component is higher than that of the second matrix component; The second matrix component is an integral structure, and / or the deformation coefficient of the second matrix component is less than that of the first matrix component.

2. The aerosol-generating product according to claim 1, characterized in that, The matrix filling amount of the first matrix component is ρ1, and the matrix filling amount of the second matrix component is ρ2, wherein 0.6 g / cm³ 3 ≤ρ1≤0.9g / cm 3 0.3g / cm 3 ≤ρ2<0.6g / cm 3 .

3. The aerosol-generating product according to claim 1 or 2, characterized in that, The deformation coefficient of the second matrix component is less than or equal to 5%, and the deformation coefficient of the first matrix component is greater than 5%.

4. The aerosol-generating product according to claim 1 or 2, characterized in that, The deformation coefficient of the second matrix component is less than or equal to 1%, and the deformation coefficient of the first matrix component is greater than 1%.

5. The aerosol-generating article according to claim 1 or 2, characterized in that, The deformation coefficient of the second matrix component is 0%, and the deformation coefficient of the first matrix component is greater than 0%.

6. The aerosol-generating article according to any one of claims 1 to 5, characterized in that, The first matrix component has a suction resistance of 10–80 Pa / mm, and the second matrix component has a suction resistance of 0–5 Pa / mm.

7. The aerosol-generating article according to any one of claims 1 to 6, characterized in that, The ratio of the length of the second matrix component to the length of the combined matrix component is 0.4:1 to 0.8:

1.

8. The aerosol-generating product according to claim 7, characterized in that, The ratio of the length of the second matrix component to the length of the combined matrix component is 0.5:1 to 0.6:

1.

9. The aerosol-generating article according to any one of claims 1 to 8, characterized in that, The second matrix component has multiple through channels along the direction from the distal lip to the proximal lip; and the total cross-sectional area of ​​the through channels is 50% to 80% of the total cross-sectional area of ​​the second matrix component.

10. The aerosol-generating article according to any one of claims 1 to 9, characterized in that, The second matrix component has micropores, and the total volume of the micropores accounts for 10% to 30% of the total volume of the second matrix component.

11. The aerosol-generating article according to any one of claims 1 to 10, characterized in that, The pore size of the micropores is 20nm to 50nm.

12. The aerosol-generating article according to any one of claims 1 to 11, characterized in that, Also includes: A cooling support component is disposed between the filter component and the combined matrix component.

13. The aerosol-generating product according to claim 12, characterized in that, The cooling support component has through holes along the radial direction of the wrapping component.

14. The aerosol-generating article according to any one of claims 1 to 13, characterized in that, The aerosol-generated product exhibits a draw resistance variation rate of 5% to 10% per inlet.

15. An aerosol generation system, characterized in that, The invention includes an aerosol generating article and a heating device as described in any one of claims 1 to 14, wherein the heating device is adapted to heat the aerosol generating article and form an inhalable aerosol.

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