A matrix segment, an aerosol generating product, and an aerosol generating system

Abstract

This application provides a matrix segment, an aerosol generation product, and an aerosol generation system. The matrix segment includes multiple dispersed first granular matrix structures and a coating layer; the coating layer is used to encapsulate the dispersed first granular matrix structures; wherein, each first granular matrix structure is an extruded integral structure. By setting the first granular matrix structure as an extruded integral structure, on the one hand, the first granular matrix structure has better stability and is less prone to collapse, giving the matrix segment a sustained-release effect; on the other hand, the first granular matrix structure is simple to form, facilitating its manufacturing and improving the manufacturing efficiency of the aerosol generation product. In addition, the first granular matrix structure has high density and occupies a small volume, which helps to shorten the size of the matrix segment and facilitates heat radiation into the interior of the matrix segment, thereby improving the heating uniformity of the matrix segment.

Description

Technical Field

[0001] This application relates to the field of aerosol technology, and in particular to a matrix segment, an aerosol generating article, and an aerosol generating system. Background Technology

[0002] Aerosol generating products generally produce aerosols through heating without combustion. Specifically, aerosol generating products use an external heat source to heat the aerosol generating matrix in the product to produce aerosols. The aerosol generating matrix does not burn, but instead loads an atomizing agent. When used, the atomizing agent is released by heating to form smoke.

[0003] In related technologies, the matrix section is filled with natural tobacco. Due to the loose structure of natural tobacco, it is prone to collapse during the user's inhalation, which affects the consistency of the aerosol generation product's draw resistance and reduces the user's inhalation experience. Utility Model Content

[0004] In view of this, the embodiments of this application aim to provide a matrix segment, an aerosol generation article, and an aerosol generation system to improve the structural stability of the matrix segment, so as to ensure the consistency of the absorption resistance of the aerosol generation article.

[0005] One embodiment of this application provides a matrix segment for generating aerosols, comprising:

[0006] Multiple dispersed first-partic matrix structures;

[0007] A coating layer for encapsulating the dispersed first particulate matrix structure;

[0008] In this embodiment, each of the first granular matrix structures is an extruded integral structure.

[0009] In some embodiments, the median particle size of the plurality of the first particulate matrix structures is 50 μm to 300 μm.

[0010] In some embodiments, the true density of a single first particulate matrix structure is 1.0 g / cm³. 3 ~1.50g / cm 3 .

[0011] In some embodiments, the porosity of a single first particulate matrix structure is 10% to 60%.

[0012] In some embodiments, the specific surface area of ​​a single first particulate matrix structure is 1 m² / g to 10 m² / g. 2 / g.

[0013] In some embodiments, the filling rate of the matrix segment is 0.5 cm³ / g to 4.5 cm³ / g.

[0014] In some embodiments, the matrix segment includes a dispersed second matrix structure, wherein the density of the first granular matrix structure is greater than the density of the second matrix structure.

[0015] In some implementations, the second matrix structure is granular, sheet-like, or strip-like.

[0016] In some embodiments, the total mass of the second matrix structure accounts for 1% to 99% of the total mass of the matrix segment; and / or, the total mass of the first granular matrix structure accounts for 1% to 99% of the total mass of the matrix segment.

[0017] According to a second embodiment of this application, an aerosol generating article is provided, comprising: a filter section, a support section, a cooling section, a matrix section as described in any of the above embodiments, and a front plug section arranged along a first direction.

[0018] This application provides an aerosol generation system in three aspects, including:

[0019] An aerosol generating device having a receiving cavity;

[0020] The aerosol-generating article according to any of the above embodiments, wherein at least a portion of the aerosol-generating article is contained in the receiving cavity; or, the matrix segment according to any of the above embodiments, wherein the matrix segment is contained in the receiving cavity;

[0021] The aerosol generating device includes a heating element for heating the matrix section contained in the receiving cavity to generate aerosol.

[0022] This application discloses a matrix segment, an aerosol-generating article, and an aerosol-generating system. By configuring the first granular matrix structure as an extruded integral structure, on the one hand, the first granular matrix structure has better stability and is less prone to collapse, which improves the consistency of draw resistance. Moreover, compared with natural tobacco, the first granular matrix structure releases aerosols more slowly when heated, giving the matrix segment a slow-release effect and improving the user's smoking experience. On the other hand, the first granular matrix structure is simple to form, facilitating its manufacture and improving the manufacturing efficiency of the aerosol-generating article. Furthermore, the first granular matrix structure has high density and occupies a small volume, which helps to shorten the size of the matrix segment and facilitates heat radiation into the interior of the matrix segment, thereby improving the heating uniformity of the matrix segment and enhancing the user's smoking experience. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of an aerosol-generating article provided in an embodiment of this application;

[0024] Figure 2 A schematic diagram of the structure of a matrix segment of an aerosol-generating article provided in an embodiment of this application;

[0025] Figure 3 for Figure 2 A diagram from another perspective;

[0026] Figure 4 This is a schematic diagram of the structure of the matrix segment of an aerosol-generated article provided in two embodiments of this application;

[0027] Figure 5 This is a schematic diagram of the structure of the matrix segment of an aerosol-generated article provided in three embodiments of this application;

[0028] Figure 6 This is a schematic diagram of the structure of the matrix segment in an aerosol-generating product provided in the fourth embodiment of this application;

[0029] Figure 7 This is a schematic diagram of the structure of the matrix segment in an aerosol-generating product provided in the fifth embodiment of this application;

[0030] Figure 8 A schematic diagram illustrating the manufacturing process of a matrix segment of an aerosol-generated article provided in this application embodiment;

[0031] Figure 9 This is a schematic diagram of an aerosol generation system provided in an embodiment of this application.

[0032] Explanation of reference numerals in the attached figures

[0033] 1. Aerosol generating product; 11. Forward plug section; 12. Matrix section; 121. First granular matrix structure; 122. Second matrix structure; 13. Support section; 14. Cooling section; 15. Filter section; 16. Coating layer; 2. Aerosol generating device; 2a. Receiving cavity; 20. Outer shell; 21. Heating element; 22. Battery; 3. Extrusion equipment; 4. Cutting structure. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0035] The specific technical features described in the specific embodiments can be combined in any suitable manner without contradiction. For example, different combinations of specific technical features can form different embodiments and technical solutions. To avoid unnecessary repetition, the various possible combinations of the specific technical features in this application will not be described separately.

[0036] In the following description, the terms "first," "second," etc., are used merely to distinguish different objects and do not indicate that the objects have the sameness or relationship. It should be understood that the directional descriptions "above," "below," "outside," and "inside" refer to the orientation under normal use conditions, while "left" and "right" refer to the left and right directions shown in the corresponding diagrams, which may or may not be the left and right directions under normal use conditions.

[0037] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. "A plurality of" means two or more.

[0038] This application provides a matrix segment 12, please refer to... Figures 1 to 5 The matrix segment 12 includes a plurality of dispersed first granular matrix structures 121 and a coating layer.

[0039] The matrix segment 12 is used to generate aerosols, for example, the matrix segment 12 releases aerosols when heated.

[0040] It should be noted that multiple dispersed first granular matrix structures 121 refer to numerous scattered first granular matrix structures 121 aggregated together by the constraints of other structures. The dispersed first granular matrix structures 121 themselves cannot maintain a predetermined shape and structural strength, and need to rely on other structures (such as the coating layer mentioned below) to maintain a predetermined shape.

[0041] The coating layer is used to encapsulate the dispersed first particulate matrix structure 121. It can be understood that the coating layer is used to encapsulate all the dispersed first particulate matrix structures 121 within the matrix segment 12. The coating layer can constrain the dispersed first particulate matrix structures 121, improve the integrity of the matrix segment 12, and reduce the phenomenon of the first particulate matrix structures 121 loosening and falling off.

[0042] Each first granular matrix structure 121 is an extruded integral structure, meaning that each first granular matrix structure 121 is an extruded integral structure. This facilitates the production and manufacturing of the first granular matrix structure 121.

[0043] It should be noted that, in the embodiments of this application, the integral structure of extrusion refers to the structure of extrusion molding. Extrusion molding refers to the process in which materials are pushed by the screw through the action between the extruder barrel and the screw, and continuously pass through the die head to form products or semi-finished products of various cross sections. For example, after physically recombining natural tobacco raw materials such as tobacco leaves, tobacco stems and tobacco dust with liquid raw materials, a first granular matrix structure 121 with approximately uniform quality is produced by extrusion process. Specifically, please refer to... Figure 8 After the raw materials are made into a slurry, they are placed into the extrusion equipment 3. The resulting continuous rod-shaped object is cut by the cutting structure 4 to form the first granular matrix structure 121. Thus, the first granular matrix structure 121 has good stability and density.

[0044] The matrix segment 12 for generating aerosols provided in this embodiment of the application, by setting the first granular matrix structure 121 as an extruded integral structure, has the following advantages: Firstly, the first granular matrix structure 121 has better stability and is less prone to collapse, which improves the consistency of draw resistance. Moreover, compared with natural tobacco, the first granular matrix structure 121 releases aerosols more slowly when heated, giving the matrix segment 12 a slow-release effect and improving the user's smoking experience. Secondly, the first granular matrix structure 121 is simple to form, which facilitates its manufacture and improves the manufacturing efficiency of the aerosol-generating product 1. In addition, the first granular matrix structure 121 has high density and occupies a small volume, which helps to shorten the size of the matrix segment 12 and facilitates heat radiation into the interior of the matrix segment 12, thereby improving the heating uniformity of the matrix segment 12 and enhancing the user's smoking experience.

[0045] This application provides an aerosol generating product 1, please refer to... Figure 1 The aerosol-generating article 1 includes a filter section 15, a cooling section 14, a support section 13, a matrix section 12 in any embodiment, and a front plug section 11 arranged along a first direction.

[0046] It should be noted that the first direction refers to Figure 1 The direction indicated by the middle arrow.

[0047] The aerosol generated by the matrix section 12 flows through the support section 13, the cooling section 14 and the filtration section 15 in sequence before entering the user's mouth. The multi-segment structure can extend the flow path of the aerosol and gradually reduce the temperature of the aerosol, which can reduce the problem of "burning the mouth" for the user during the inhalation process.

[0048] The support section 13 and the front plug section 11 are located at both ends of the matrix section 12 along the first direction. The front plug section 11 can stop the matrix section 12, effectively reducing the possibility of the matrix section 12 shrinking and deforming and falling off after heating. In addition, the front plug section 11 can also adsorb aerosols that flow back during the process when the user is not performing suction, reducing the possibility of backflowing aerosols overflowing from the aerosol-generated product 1. Furthermore, the front plug section 11 can also absorb the condensate formed in the matrix section 12, reducing the possibility of condensate flowing out of the aerosol-generated product 1.

[0049] Filter section 15 is used to intercept large particles carried in aerosols, improving the user's suction experience.

[0050] The support section 13 plays a supporting role. During the heating process of the aerosol-generated product 1, the support section 13 can maintain its own structural strength and shape, thereby achieving the supporting role of the aerosol-generated product 1.

[0051] The cooling section 14 can cool the air. During the suction process, the airflow from the external environment can enter the cooling section 14 and mix with the aerosol, thus reducing the temperature of the aerosol.

[0052] For example, please refer to Figure 1 The aerosol generating article 1 also includes a coating layer 16, which covers the outer periphery of the filter section 15, the cooling section 14, the support section 13, the matrix section 12, and the front plug section 11. It is understood that the coating layer 16 serves to connect the filter section 15, the cooling section 14, the support section 13, the matrix section 12, and the front plug section 11, thereby improving the overall stability of the aerosol generating article 1.

[0053] It should be noted that the specific thickness of the wrapping layer 16 is not limited; for example, the thickness of the wrapping layer 16 is 0.06 mm.

[0054] The material of the wrapping layer 16 is not limited. For example, the wrapping layer 16 includes, but is not limited to, one or more combinations of materials such as fiber paper, metal foil, metal foil composite fiber paper, polyethylene composite fiber paper, PE (polyethylene), PBAT (butylene adipate-co-terephthalate).

[0055] It should be noted that, in some embodiments, the encapsulation layer 16 covering the outer periphery of the matrix segment 12 serves as the aforementioned encapsulation layer; in other embodiments, the aerosol generating article 1 has an encapsulation layer 16 and an encapsulation layer, with the encapsulation layer 16 located on the outer periphery of the encapsulation layer.

[0056] This application also provides an aerosol generation system; please refer to... Figure 9The aerosol generation system includes an aerosol generation device 2, which has a receiving cavity 2a.

[0057] In some embodiments, the aerosol generation system includes an aerosol generation article 1 according to any embodiment, at least a portion of which is housed in a receiving cavity 2a. It is understood that the receiving cavity 2a provides space for the aerosol generation article 1, which may be entirely housed within the receiving cavity 2a, or partially housed within the receiving cavity 2a while another portion is located outside the receiving cavity 2a.

[0058] In other embodiments, the aerosol generation system includes a matrix segment 12 of any embodiment, which is housed in a receiving cavity 2a.

[0059] The aerosol generating device 2 provided in this application embodiment allows external gas to enter the receiving cavity 2a. The gas can enter the aerosol generating product 1 through the front plug section 11, which can improve the suction resistance when the user inhales and improve the user's inhalation experience.

[0060] For example, the aerosol generating device 2 includes a housing 20, which can form the appearance of the aerosol generating device 2 and can also form a receiving cavity 2a. In addition, the housing 20 can also protect the internal components of the aerosol generating device 2.

[0061] The aerosol generating device 2 includes a heating element 21, which heats the matrix segment 12 housed in the receiving cavity 2a to generate an aerosol. It is understood that the heat generated by the heating element 21 can heat and atomize the matrix segment 12, thereby generating an aerosol that can be inhaled by a user or used in medicine, beauty, etc.

[0062] The heating element 21 can be heated in various ways. For example, the heating methods include center heating and peripheral heating. Center heating refers to the heating element 21 being inserted into the aerosol-generating product 1 to bake and heat the aerosol-generating product 1 from the inside out. Peripheral heating refers to the heating element 21 being positioned around the aerosol-generating product 1 to bake and heat the aerosol-generating product 1 from the outside in. These heating methods can specifically include resistance heating, electromagnetic heating, infrared heating, microwave heating, laser heating, etc.

[0063] It should be noted that, in this embodiment, the first direction does not specifically refer to the direction in which the aerosol generating article 1 has the longest external outline. Specifically, the arrangement direction of the filter section 15, cooling section 14, support section 13, matrix section 12, and front plug section 11 is consistent with the first direction; the direction in which the aerosol generating article 1 is inserted into the aerosol generating device 2 and the direction in which the aerosol generating article 1 is removed from the aerosol generating device 2 are both parallel to the first direction. The length of the aerosol generating article 1 along the first direction can be longer, shorter, or the same as the length in other directions.

[0064] For example, when the aerosol generating article 1 has a cylindrical outline, the first direction is the axial direction of the aerosol generating article 1. It should be noted that even when the axial length of the aerosol generating article 1 is less than its diameter, the first direction of the aerosol generating article 1 is still the axial direction. As another example, when the aerosol generating article 1 has a cuboid outline, the first direction is still the direction defined above, that is, the arrangement direction of the filter section 15, the cooling section 14, the support section 13, the matrix section 12, and the front plug section 11, or the direction in which the receiving cavity 2a takes in and places the aerosol generating article 1. The first direction of the aerosol generating article 1 can be any of the length, width, or height of the cuboid.

[0065] For example, the aerosol generating device 2 also includes a battery 22, which provides power to the heating element 21.

[0066] In some embodiments, the filling rate (denoted by p) of the matrix segment 12 is 0.5 cm³ / g to 4.0 cm³ / g (cubic centimeters per gram), that is, 0.5 cm³ / g ≤ p ≤ 4.5 cm³ / g, for example, p is 0.5 cm³ / g, 0.6 cm³ / g, 0.7 cm³ / g, etc. 3 / g, 0.8cm 3 / g, 0.9cm 3 / g, 1.0cm 3 / g, 1.03cm 3 / g, 1.18cm 3 / g, 1.5cm 3 / g, 1.8cm 3 / g, 2.0cm 3 / g, 2.34cm 3 / g, 2.50cm 3 / g, 2.88cm 3 / g, 3.0cm 3 / g, 3.42cm 3 / g, 3.5cm³ / g, 3.96cm³ / g, 4.0cm³ / g, 4.1cm³ / g, 4.23cm³ / g, or 4.5cm³ / g, etc. It is understandable that the reasonable filling rate of matrix segment 12 results in reasonable voids within matrix segment 12, ensuring reasonable suction resistance and improving the user's suction experience.

[0067] It should be noted that the filling density refers to the value obtained by dividing the volume v of the outer contour of the matrix segment 12 by the mass m of the matrix segment 12, that is, the filling rate p = volume v ÷ mass m.

[0068] In some embodiments, the median particle size (denoted by D) of the plurality of first particulate matrix structures 121 is 50 μm to 300 μm (micrometers), that is, 50 μm ≤ D ≤ 300 μm, for example, D is 50 μm, 60 μm, 70 μm, 80 μm, 90 μm, 100 μm, 150 μm, 200 μm, 250 μm or 300 μm, etc.

[0069] It should be noted that the median particle size of the above-mentioned multiple first granular matrix structures 121 being 50μm to 300μm means that the median particle size of all the first granular matrix structures 121 within the matrix segment 12 is 50μm to 300μm.

[0070] In this way, the particle size of all the first granular matrix structures 121 in the matrix segment is reasonable. On the one hand, the particle size of the first granular matrix structures 121 is not too small, which can ensure the flow of air between the first granular matrix structures 121, so that the suction resistance of the matrix segment 12 is reasonable. It can also prevent the first granular matrix structures 121 from clumping, so as to ensure the uniformity of the filling of the first granular matrix structures 121 in the matrix segment 12. On the other hand, the particle size of the first granular matrix structures 121 is not too large, which can ensure the uniformity of the heating of the first granular matrix structures 121, so that the first granular matrix structures 121 can generate enough aerosol for the user to draw in. It can also ensure that the first granular matrix structures 121 in the matrix segment 12 are compactly filled, so as to ensure the structural strength of the matrix segment 12.

[0071] It should be noted that the median particle size refers to the fact that, in the sample of first granular matrix structures 121, 50% of the first granular matrix structures 121 have a particle size less than or equal to the median particle size. For example, when D is 200 μm, 50% of the first granular matrix structures 121 have a particle size less than or equal to 200 μm, and 50% of the first granular matrix structures 121 have a particle size greater than 200 μm.

[0072] In some embodiments, the true density (denoted by p1) of a single first particulate matrix structure 121 is 1.0 g / cm³ to 1.50 g / cm³, that is, 1.0 g / cm³ ≤ p1 ≤ 1.50 g / cm³, for example, p1 is 1.0 g / cm³. 3 1.1g / cm 3 1.2g / cm 3 1.3g / cm 3 1.4g / cm 3 Or 1.5g / cm 3 That is to say, the true density of each first granular matrix structure 121 within the matrix segment 12 is 1.0 g / cm3 to 1.50 g / cm3.

[0073] It should be noted that true density refers to the actual mass of the first granular matrix structure 121 per unit volume in a pore-free state, that is, the density after removing all pores. In other words, the volume here does not include the volume of the pores in the first granular matrix structure 121.

[0074] In related technologies, the true density of reconstituted tobacco particles is 0.15 g / cm3 to 0.30 g / cm3, which is relatively low. As a result, fewer reconstituted tobacco particles can be filled per unit volume, making it difficult to produce biosols in a sustained manner.

[0075] In this embodiment, the first granular matrix structure 121 has a high true density. With the same volume of matrix segment 12, more of the first granular matrix structure 121 can be filled, allowing the matrix segment 12 to generate more aerosol for the user to inhale. Furthermore, it ensures good density of the first granular matrix structure 121, preventing it from collapsing. During heating, the first granular matrix structure 121 can release aerosols smoothly, minimizing gaps in the e-liquid formation process and achieving a slow-release effect, thus improving the user's vaping experience.

[0076] In some embodiments, the porosity (denoted by e) of a single first particulate matrix structure 121 is 10% to 60%, i.e., 10% ≤ e ≤ 60%, for example, e is 10%, 20%, 30%, 40%, 50%, or 60%, etc. That is, the porosity of each first particulate matrix structure 121 within the matrix segment 12 is 10% to 60%.

[0077] Understandably, the porosity of the first granular matrix structure 121 is reasonable. On the one hand, this ensures that the porosity of the first granular matrix structure 121 is not too small, thus guaranteeing its air permeability and facilitating the release of aerosols during the heating and suction process. On the other hand, this ensures that the porosity of the first granular matrix structure 121 is not too large, thereby guaranteeing its structural strength and reducing the possibility of breakage.

[0078] It should be noted that porosity e refers to the percentage of the volume of voids in the first granular matrix structure 121 relative to the total volume, and the calculation formula is: porosity e = (1 - bulk density / density) * 100%.

[0079] In some embodiments, the specific surface area (denoted by S) of a single first granular matrix structure 121 is 1 m² / g to 10 m² / g (square meters per gram), i.e., 1 m² / g ≤ S ≤ 10 m² / g. For example, S can be 1 m² / g, 2 m² / g, 3 m² / g, 4 m² / g, 5 m² / g, 6 m² / g, 7 m² / g, 8 m² / g, 9 m² / g, or 10 m² / g, etc. In other words, the specific surface area of ​​each first granular matrix structure 121 within the matrix segment 12 is 1 m² / g to 10 m² / g. 2 / g.

[0080] This design ensures that the specific surface area of ​​the first granular matrix structure 121 is reasonable, guaranteeing that it has sufficient contact area with air. This allows the first granular matrix structure 121 to generate enough aerosol during the heating and suction process for user suction. Furthermore, it prevents the first granular matrix structure 121 from excessively absorbing external moisture during storage, thus ensuring its shelf life.

[0081] It should be noted that the specific surface area S of the first granular matrix structure 121 refers to the total surface area of ​​the first granular matrix structure 121 per unit mass.

[0082] It should be noted that the specific shape of the first granular matrix structure 121 is not limited. For example, the cross-section of the first granular matrix structure 121 is circular (see reference). Figure 2 and Figure 3 ), square (please refer to) Figure 4 ), regular hexagon (please refer to) Figure 5 )etc.

[0083] It should be noted that the specific arrangement of the first granular matrix structure 121 in the matrix segment 12 is not limited.

[0084] In some embodiments, please refer to Figure 7 The first granular matrix structure 121 is arranged in an orderly manner.

[0085] It should be noted that ordered arrangement refers to the regular arrangement of the dispersed first granular matrix structures 121, for example, all the first granular matrix structures 121 extend along the first direction to form filaments.

[0086] For example, please refer to Figure 6 The first granular matrix structure 121 is randomly filled. Understandably, this is beneficial for improving the manufacturing efficiency of the matrix segment 12.

[0087] It should be noted that disordered filling refers to the random arrangement of the dispersed first granular matrix structure 121, for example, the random arrangement of the dispersed first granular matrix structure 121.

[0088] It should be noted that the specific structure of the matrix segment 12 is not limited. For example, the matrix segment 12 may include only the first granular matrix structure 121, or it may include matrix structures other than the first granular matrix structure 121.

[0089] In some embodiments, the matrix segment 12 includes a dispersed second matrix structure 122. It is understood that the matrix segment 12 includes a first granular matrix structure 121 and a second matrix structure 122. Both the first granular matrix structure 121 and the second matrix structure 122 can generate aerosols upon heating, allowing the user to inhale the aerosols generated by the two matrix structures, thus enriching the user's experience and improving the inhalation experience.

[0090] It should be noted that the specific proportions of all the first strip matrix structures and all the second matrix structures 122 in the matrix segment 12 are not limited.

[0091] For example, the total mass of the second matrix structure 122 (denoted by M2) accounts for 1% to 99% of the total mass of the matrix segment 12 (denoted by M), i.e., 1% ≤ M2 / M ≤ 99%, for example, M2 / M is 1%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, or 99%, etc. This ensures that the total mass of the second matrix structure 122 is reasonable, allowing the user to aspirate sufficient aerosol generated by the second matrix structure 122, thereby improving the user's aspiration experience.

[0092] For example, the total mass of the first granular matrix structure 121 (denoted by M1) accounts for 1% to 99% of the total mass of the matrix segment 12, i.e., 1% ≤ M1 / M ≤ 99%, for example, M1 / M is 1%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, or 99%, etc. This ensures a reasonable total mass of the first granular matrix structure 121, allowing it to release aerosols smoothly during heating, thus enabling the matrix segment 12 to provide a persistent supply of aerosols for the user to inhale, thereby improving the user's inhalation experience.

[0093] It should be noted that the specific structure of the second matrix structure 122 is not limited. For example, the second matrix structure 122 may be a matrix structure obtained by the slurry method, the sheet method, the roll pressing method, or natural tobacco leaves, etc., and there are no restrictions on this.

[0094] For example, the second matrix structure 122 is granular. It is understood that the shape of the second matrix structure 122 is granular, just like the shape of the first granular matrix structure 121. This facilitates the mixing of the first granular matrix structure 121 and the second matrix structure 122, makes the first granular matrix structure 121 and the second matrix structure 122 more evenly distributed, and ensures that the first granular matrix structure 121 and the second matrix structure 122 are heated evenly, thereby improving the user's suction experience.

[0095] It should be noted that the second matrix structure 122 being granular means that the shape of the second matrix structure 122 is granular. For example, the second matrix structure 122 is a regular or irregular particle with a size (which can be understood as particle size) between 0.5 mm and 3 mm in any direction.

[0096] For example, the second matrix structure 122 is sheet-like. It is understood that the sheet-like second matrix structure 122 has high structural strength, and the mixing of the sheet-like second matrix structure 122 with the first granular matrix structure 121 can improve the structural strength of the matrix segment 12, so as to ensure the shape of the matrix segment 12 during the heated suction process.

[0097] For example, the second matrix structure 122 is strip-shaped. It is understood that the strip-shaped second matrix structure 122 can fill the gaps between the dispersed first particulate matrix structures 121, and can fill more matrix structures when the volume of the matrix segment 12 remains unchanged, so that the matrix segment 12 can generate more aerosols.

[0098] Exemplarily, the second matrix structure 122 is at least one of strip-shaped, sheet-shaped, and granular. All second matrix structures 122 may be strip-shaped; all second matrix structures 122 may be sheet-shaped; all second matrix structures 122 may be granular; or all second matrix structures 122 may include two or three of the following: strip-shaped, sheet-shaped, and granular second matrix structures 122.

[0099] It should be noted that in embodiments where the matrix segment 12 includes a first granular matrix structure 121 and a second matrix structure 122, the first granular matrix structure 121 and the second matrix structure 122 may be randomly filled (see reference). Figure 6 The first granular matrix structure 121 and the second matrix structure 122 can also be ordered (see reference). Figure 7 ).

[0100] In some embodiments, the density of the first granular matrix structure 121 is greater than the density of the second matrix structure 122. It is understood that during the heating process of the matrix segment 12, the higher density of the first granular matrix structure 121 results in a slower aerosol generation rate, while the lower density of the second matrix structure 122 results in a faster aerosol generation rate. This makes the aerosol generation rate of the matrix segment 12 more uniform during heating, thereby improving the user's suction experience.

[0101] The following is a brief description of two comparative examples and nine embodiments of this application, in conjunction with Table 1:

[0102] Table 1

[0103]

[0104] Comparative Example 1: The matrix segment 12 includes a first granular matrix structure 121 comprising 100% of the matrix.

[0105] Comparative Example 2: Matrix segment 12 includes a second matrix structure 122 that accounts for 100% of the matrix.

[0106] Embodiment 1 of this application: The matrix segment 12 includes a first granular matrix structure 121 accounting for 20% and a second matrix structure 122 accounting for 80%, wherein the second matrix structure 122 is granular.

[0107] Embodiment 2 of this application: The matrix segment 12 includes a first granular matrix structure 121 accounting for 20% and a second matrix structure 122 accounting for 80%, the second matrix structure 122 being sheet-like.

[0108] Embodiment 3 of this application: The matrix segment 12 includes a first granular matrix structure 121 accounting for 20% and a second matrix structure 122 accounting for 80%, the second matrix structure 122 being strip-shaped.

[0109] Embodiment 4 of this application: The matrix segment 12 includes a first granular matrix structure 121 accounting for 10% and a second matrix structure 122 accounting for 90%, the second matrix structure 122 being strip-shaped.

[0110] Embodiment 5 of this application: The matrix segment 12 includes a first granular matrix structure 121 accounting for 30% and a second matrix structure 122 accounting for 70%, the second matrix structure 122 being strip-shaped.

[0111] Embodiment 6 of this application: The matrix segment 12 includes a first granular matrix structure 121 accounting for 40% and a second matrix structure 122 accounting for 60%, the second matrix structure 122 being strip-shaped.

[0112] Embodiment 7 of this application: The matrix segment 12 includes a first granular matrix structure 121 accounting for 60% and a second matrix structure 122 accounting for 40%, the second matrix structure 122 being strip-shaped.

[0113] Embodiment 8 of this application: The matrix segment 12 includes a first granular matrix structure 121 accounting for 80% and a second matrix structure 122 accounting for 20%, the second matrix structure 122 being strip-shaped.

[0114] Embodiment 9 of this application: The matrix segment 12 includes a first granular matrix structure 121 accounting for 90% and a second matrix structure 122 accounting for 10%, the second matrix structure 122 being strip-shaped.

[0115] As can be seen from Table 1, among Examples 1 to 3, Example 3 has the best aroma quality and characteristic aroma intensity. That is to say, when the strip-shaped second matrix structure 122 and the first granular matrix structure 121 are mixed in the same proportion, the aroma quality, characteristic aroma intensity, visual smoke volume, ACM and menthol content and draw resistance in matrix segment 12 can be balanced.

[0116] Examples 4 to 9, with Example 6 being a preferred choice, wherein the matrix segment 12 includes a first granular matrix structure 121 comprising 40% and a second matrix structure 122 comprising 60%, the second matrix structure 122 being strip-shaped.

[0117] Exemplarily, the second matrix structure 122 is at least one of strip-shaped, sheet-shaped, and granular. All second matrix structures 122 may be strip-shaped; all second matrix structures 122 may be sheet-shaped; all second matrix structures 122 may be granular; or all second matrix structures 122 may include two or three of the following: strip-shaped, sheet-shaped, and granular second matrix structures 122.

[0118] In the description of this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this application, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine different embodiments or examples described in this application, as well as features of different embodiments or examples.

[0119] The above description is merely a preferred embodiment of this application and is not intended to limit the 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 scope of protection of this application.

Claims

1. A substrate segment, characterized in that, The matrix segment is used to generate aerosols, and the matrix segment includes: Multiple dispersed first-partic matrix structures; A coating layer for encapsulating the dispersed first particulate matrix structure; In this embodiment, each of the first granular matrix structures is an extruded integral structure.

2. The substrate segment of claim 1, wherein, The median particle size of the plurality of the first particulate matrix structures is 50 μm to 300 μm.

3. The substrate segment of claim 1, wherein, The true density of a single first granular matrix structure is 1.0 g / cm³ to 1.50 g / cm³.

4. The substrate segment of claim 1, wherein, The porosity of a single first particulate matrix structure is 10% to 60%.

5. The substrate segment of claim 1, wherein, The specific surface area of ​​a single first particulate matrix structure is 1 m² / g to 10 m² / g.

6. The matrix segment according to claim 1, characterized in that, The filling rate of the matrix segment is 0.5 cm³ / g to 4.5 cm³ / g.

7. The substrate segment of claim 1, wherein, The matrix segment includes a dispersed second matrix structure, wherein the density of the first granular matrix structure is greater than the density of the second matrix structure.

8. The substrate segment of claim 7, wherein, The second matrix structure is granular, sheet-like, or strip-like.

9. The matrix segment according to claim 7, characterized in that, The total mass of the second matrix structure accounts for 1% to 99% of the total mass of the matrix segment; and / or, the total mass of the first granular matrix structure accounts for 1% to 99% of the total mass of the matrix segment.

10. An aerosol-generating article, characterised in that, include: The filter section, support section, cooling section, matrix section as described in any one of claims 1-9, and foreplug section are arranged along the first direction.

11. An aerosol-generating system comprising: include: An aerosol generating device having a receiving cavity; The aerosol-generating article of claim 10, wherein at least a portion of the aerosol-generating article is contained in the receiving cavity; or, the matrix segment of any one of claims 1-9, wherein the matrix segment is contained in the receiving cavity; The aerosol generating device includes a heating element for heating the matrix section contained in the receiving cavity to generate aerosol.

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