Matrix segment and aerosol-generating article

Abstract

The embodiment of the present application provides a substrate section and an aerosol generating article, wherein the substrate section is an integrated structure with a fracture guide groove; the substrate section has a first use mode and a second use mode, when the substrate section is in the first use mode, the substrate section remains the integrated structure, and when the substrate section is in the second use mode, the substrate section is fractured along the fracture guide groove under the action of an external force. The substrate section of the embodiment of the present application can be used in the first use mode or the second use mode, the use mode is more abundant, and the substrate section can be adapted to more kinds of aerosol generating devices.

Description

Technical Field

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

[0002] Aerosol-generating products generally produce aerosols by heating without combustion. Specifically, the matrix segment is heated by an external heat source, such as the heating components on the aerosol generating device, to a temperature just high enough to release fragrance. The matrix segment does not burn; instead, it releases an atomizing agent through heating to form an aerosol.

[0003] In related technologies, there is a type of matrix segment that is a one-piece structure processed by an integral molding process. The one-piece matrix segment has good thermal conductivity and is not easily broken during transportation. However, the one-piece matrix segment must match the shape and size of the heating cavity of the aerosol generating device to accommodate the matrix segment in order to be used, which limits its application. Utility Model Content

[0004] In view of this, embodiments of this application aim to provide a matrix segment and an aerosol-generating article capable of providing two usage forms.

[0005] To achieve the above objectives, this application provides a matrix segment, which is an integral structure with a fracture guide groove. The matrix segment has a first usage mode and a second usage mode. In the first usage mode, the matrix segment maintains the integral structure. In the second usage mode, the matrix segment fractures along the fracture guide groove under the action of an external force.

[0006] In one embodiment, the matrix segment has an airflow channel and a matrix wall forming the airflow channel, the airflow channel penetrating at least one end of opposite ends of the matrix segment along a first direction, and the fracture guide groove is disposed on the matrix wall.

[0007] In one embodiment, the fracture guide groove extends circumferentially along the airflow channel so that, when the matrix segment is in the second use mode, the matrix segment fractures into a plurality of mutually separated matrix bodies, and each of the matrix bodies is arranged along the first direction.

[0008] In one embodiment, there are multiple airflow channels and multiple matrix walls. The matrix wall includes a first matrix wall located between two adjacent airflow channels and a second matrix wall that forms the outer wall of the matrix segment. The fracture guide groove is provided on both the first matrix wall and the second matrix wall.

[0009] In one embodiment, the second matrix wall encloses a receiving space, the first matrix wall is disposed within the receiving space, and the opposite sides of the first matrix wall are respectively connected to the second matrix wall.

[0010] In one embodiment, on a projection plane perpendicular to the first direction, the projection of the first matrix wall is wavy, and the projection of the fracture guide groove is located at the trough of the wavy projection of the first matrix wall.

[0011] In one embodiment, the number of airflow channels is plurality of channels, and the plurality of airflow channels are arranged in a grid pattern; and / or,

[0012] The thickness of the matrix wall is 0.1 mm to 3 mm; and / or,

[0013] The depth of the fracture guide groove is 20%-75% of the thickness of the matrix wall.

[0014] In one embodiment, the matrix segment is in the form of a spiral extending in a first direction.

[0015] In one embodiment, the fracture guide groove is a laser groove; or,

[0016] The matrix segment is an extruded integral structure or an injection molded integral structure.

[0017] Another embodiment of this application provides an aerosol-generating article, comprising: the matrix segment described above.

[0018] This application provides a matrix segment and an aerosol generating article. The matrix segment is provided with a fracture guide groove. The matrix segment has a first usage mode and a second usage mode. In the first usage mode, the matrix segment maintains an integral structure, thus it can be directly installed into the heating cavity of an aerosol generating device whose heating cavity shape and size are compatible. In the second usage mode, the matrix segment can be fractured, reducing its overall size and allowing for greater morphological freedom. This allows it to be installed in the heating cavity of an aerosol generating device whose heating cavity shape is incompatible with the integral structure of the matrix segment or whose heating cavity size is relatively small. Therefore, the matrix segment can be adapted to various aerosol generating devices. Furthermore, the fracture guide groove facilitates fracture and guides the matrix segment to fracture along a predetermined fracture path, making the fracture process controllable and user-friendly. In other words, the matrix segment of this application, by providing a fracture guide groove, allows for adaptation to various aerosol generating devices by changing its usage mode, while also facilitating user operation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the aerosol-generated article of the first embodiment of this application, in which the matrix segment is in a first usage state;

[0020] Figure 2 This is a schematic diagram of the structure of the aerosol-generated article of the first embodiment of this application, in which the matrix section is in a second usage state;

[0021] Figure 3 This is a schematic diagram of the structure of the aerosol-generated article in the first usage state of the matrix section according to the second embodiment of this application;

[0022] Figure 4 This is a schematic diagram of the structure of the aerosol-generated article in the second usage mode of the matrix section according to the second embodiment of this application;

[0023] Figure 5 This is a schematic diagram of the matrix segment according to the third embodiment of this application;

[0024] Figure 6 for Figure 5 AA section view;

[0025] Figure 7 This is a cross-sectional view of the matrix segment according to the fourth embodiment of this application;

[0026] Figure 8 This is a cross-sectional view of the matrix segment according to the fifth embodiment of this application;

[0027] Figure 9 This is a schematic diagram of the matrix segment in the sixth embodiment of this application;

[0028] Figure 10 This is a schematic diagram of the matrix segment in the seventh embodiment of this application.

[0029] Explanation of reference numerals in the attached figures

[0030] 10. Matrix segment; 10a. Fracture guide groove; 11. Matrix body; 10b. Airflow channel; 12. Matrix wall;

[0031] 121. First matrix wall; 122. Second matrix wall; 20. Functional section; 21. Filtration section; 22. Cooling section;

[0032] 23. Front section. Detailed Implementation

[0033] In the description of the embodiments in this application, it should be noted that the orientation or positional relationship indicated by terms such as "first direction" is based on the appendix. Figure 1The orientations or positional relationships shown are for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the embodiments of this application.

[0034] This application provides an aerosol-generating article; please refer to [link / reference]. Figures 1 to 4 The aerosol-generated product includes a matrix segment 10.

[0035] The matrix segment 10 in this embodiment is an integral structure with a fracture guide groove 10a. The matrix segment 10 has a first usage mode and a second usage mode. In the first usage mode, the matrix segment 10 maintains an integral structure. In the second usage mode, the matrix segment 10 fractures along the fracture guide groove 10a under the action of external force.

[0036] Specifically, the matrix segment 10 is an integral structure manufactured by an integral molding process. The specific type of integral molding process is not limited. For example, the matrix segment 10 can be an extruded integral structure manufactured by an extrusion molding process, an injection molded integral structure manufactured by an injection molding process, a microporous foamed integral structure manufactured by a foaming molding process, a reaction injection integral structure manufactured by a reaction injection molding process, etc.

[0037] The matrix segment 10 is heated and atomized by the heating element of the aerosol generating device in the heating chamber of the aerosol generating device, and then released as an aerosol for users to inhale or for use in medicine, beauty, etc.

[0038] There are various heating methods for the heating element. For example, the heating methods include center heating and peripheral heating. Center heating means that the heating element is inserted into the interior of the substrate segment 10 to bake and heat the substrate segment 10. Peripheral heating means that the heating element is placed on the periphery of the substrate segment 10 to bake and heat the substrate segment 10. These heating methods may specifically include resistance heating, electromagnetic heating, infrared heating, microwave heating, laser heating, etc., and are not specifically limited here.

[0039] The specific composition of the matrix segment 10 is not limited here. For example, in one embodiment, the matrix segment 10 may include plant components, auxiliary components, atomizing agent components, adhesive components, etc.

[0040] In one embodiment, the plant-based ingredients are one or more combinations of powders formed from raw tobacco leaves, tobacco fragments, tobacco stems, tobacco dust, tea leaves, and aromatic plants after being crushed. The plant-based ingredients are the core source of the product's aroma. Endogenous substances in the plant-based ingredients, such as nicotine, enter the bloodstream through atomization, promoting the pituitary gland to produce dopamine, thereby generating a sense of physiological satisfaction.

[0041] In one embodiment, the auxiliary component can be one or more combinations of inorganic fillers, lubricants, and emulsifiers. The inorganic fillers include one or more combinations of heavy calcium carbonate, light calcium carbonate, zeolite, attapulgite, talc, and diatomaceous earth. The inorganic fillers provide skeletal support for the plant components, and their micropores increase the porosity of the wall material after molding, thereby improving the aerosol release rate.

[0042] Lubricants include one or more of the following: candelilla wax, carnauba wax, shellac, sunflower wax, rice bran, beeswax, stearic acid, and palmitic acid. Lubricants can increase the flowability of particles, reduce friction between particles, result in a more uniform overall particle density, and also reduce the pressure required for mold forming, thus reducing mold wear.

[0043] Emulsifiers include one or more combinations of polyglycerol fatty acid esters, Tween-80, and polyvinyl alcohol. Emulsifiers can, to some extent, slow down the loss of flavor substances during storage, increase the stability of flavor substances, and improve the sensory quality of the product. Emulsifiers (also known as surfactants) can reduce the interfacial tension between water-soluble and water-insoluble components in a mixture, and form a more robust film on the surface of microdroplets or an electric double layer on the surface of microdroplets due to the charge given by the emulsifier, preventing microdroplets from agglomerating and maintaining a homogeneous emulsion. Homogenizing two immiscible components through emulsification can improve the consistency of product quality.

[0044] The function of the atomizing agent is to generate a large amount of vapor when heated, thereby increasing the amount of smoke produced by the smoking product. In one embodiment, the atomizing agent may include, for example, one or more combinations of: monohydric alcohols (such as menthol); polyhydric alcohols (such as propylene glycol, triethylene glycol, 1,3-butanediol, and glycerol); esters of polyhydric alcohols (such as glyceryl monoacetate, glyceryl diacetate, or glyceryl triacetate); monocarboxylic acids; polycarboxylic acids (such as lauric acid, myristic acid) or aliphatic esters of polycarboxylic acids (such as dimethyl dodecanoate, dimethyl tetradecanoate, erythritol, 1,3-butanediol, tetraethylene glycol, triethyl citrate, propylene carbonate, ethyl lauryl acetate, triacetin, mesoerythritol, a mixture of glyceryl diacetate, diethyl caprylate, triethyl citrate, methyl benzoate, phenylbenzoate, ethyl vanillate, glyceryl tributate, and lauryl acetate).

[0045] In one embodiment, the adhesive component is a natural plant extract, a non-ionic modified viscous polysaccharide, including one or more combinations of tamarind polysaccharide, pullulan polysaccharide, seaweed polysaccharide, locust bean gum, guar gum, and xyloglucan. In another embodiment, the adhesive is hydroxypropyl methylcellulose (HPMC), polyvinyl alcohol (PVA), polyethylene glycol (PEG), etc. The adhesive achieves close contact with the component materials of the product through wetting at the interface, generating intermolecular attraction, thereby serving to bind the powder, liquid, etc., component materials.

[0046] To ensure a good bonding effect, the proportion of adhesive added can be greater than or equal to 3%.

[0047] The shape of the matrix segment 10 is not limited. For example, the matrix segment 10 can be columnar. The cross-sectional shape of the columnar matrix segment 10 can be circular, polygonal (including but not limited to triangle, square, rhombus, etc.), elliptical, racetrack-shaped, irregular, etc., wherein irregular refers to other symmetrical or asymmetrical shapes other than those listed above.

[0048] For example, the matrix segment 10 may also be in the form of a spiral extending in a first direction.

[0049] Please see Figures 1 to 4 The fracture guide groove 10a is a groove-shaped structure that guides the fracture of the matrix segment 10. The purpose of setting the fracture guide groove 10a is to create a weaker region on the matrix segment 10, so that the matrix segment 10 can fracture along a predetermined fracture path instead of randomly breaking. The extension direction of the fracture guide groove 10a is essentially equivalent to the predetermined fracture path.

[0050] The fracture of the matrix segment 10 along the fracture guide groove 10a is actually the fracture of the weaker area of ​​the matrix segment 10, which causes the matrix segment 10 to change from an integral structure into multiple mutually separated matrix bodies 11.

[0051] The shape of the cross-section of the fracture guide groove 10a is not limited; for example, the cross-section of the fracture guide groove 10a can be U-shaped, V-shaped, etc. The shape enclosed by the fracture guide groove 10a is not limited; for example, the shape can be U-shaped, V-shaped, etc.

[0052] The arrangement of the fracture guide groove 10a is not limited. In some embodiments, the matrix segment 10 with the fracture guide groove 10a can be directly formed by an integral molding process. For example, taking extrusion molding and injection molding processes as examples, a protruding structure (including but not limited to blade-shaped and wedge-shaped protrusions) can be provided in the inner cavity of the extrusion mold or injection mold. During injection molding or extrusion molding, the fracture guide groove 10a is formed by the protruding structure.

[0053] In addition, a matrix segment 10 with a connecting strip can also be extruded through a co-extrusion molding process (co-extrusion molding is a type of extrusion molding process). The connecting strip is a thinner structure in the matrix segment 10. The connecting strip connects two adjacent thicker parts in the matrix segment 10, thereby forming a fracture guide groove 10a on at least one side of the connecting strip. When the matrix segment 10 breaks, it is actually the connecting strip that breaks.

[0054] The materials used for the connecting strips include, but are not limited to, PVA (Polyvinyl Alcohol).

[0055] In other embodiments, the fracture guide groove 10a can also be formed through secondary processing. That is, the matrix segment 10 without the fracture guide groove 10a can be processed first, and then the fracture guide groove 10a can be processed on the matrix segment 10. For example, the fracture guide groove 10a can be a laser groove processed by secondary processing methods such as laser engraving or ultrasonic engraving.

[0056] At room temperature, the matrix segment 10 has a certain degree of rigidity and brittleness. The matrix segment 10 fractures under external force, which mainly means that the matrix segment 10 can be fractured along the fracture guide groove 10a by pressing, bending, etc.

[0057] For example, the fracture force of the matrix segment 10 can be 1N to 8N (including the endpoint value). For instance, the fracture force of the matrix segment 10 can be 1N, 3N, 5N, 8N, etc.

[0058] To ensure the processability of the matrix segment 10 and its fracture resistance during use, the matrix segment 10 is preferably in a flowable molten state during production, and in the molten state, the matrix segment 10 has sufficient melt strength.

[0059] For example, at a temperature of 190°C, the melt flow index (MFI) of the matrix segment 10 can be 3 g / 10 min to 120 g / 10 min (including the endpoint value).

[0060] In addition, during the processing, the compressive strength of the matrix segment 10 can also be greater than or equal to 30N.

[0061] The matrix segment 10 in this embodiment has a first usage mode and a second usage mode. In the first usage mode, the matrix segment 10 maintains an integral structure, meaning that the matrix segment 10 does not break, and can be directly installed in the heating cavity of an aerosol generating device whose shape and size are compatible with its heating cavity. In the second usage mode, the matrix segment 10 breaks, which reduces its overall size and increases its shape flexibility. This allows the matrix segment 10 to be installed in the heating cavity of an aerosol generating device whose shape is incompatible with its integral structure or whose heating cavity size is relatively small. Thus, the matrix segment 10 can be used in various aerosol generating devices. In addition, the fracture guide groove 10a facilitates the fracture of the matrix segment 10 and guides it to break along a predetermined fracture path, making the fracture of the matrix segment 10 controllable and user-friendly. In other words, by providing a fracture guide groove 10a, the matrix segment 10 of this application embodiment can not only adapt to various aerosol generating devices by changing its usage form, but also facilitate user operation.

[0062] Furthermore, in some cases, the matrix segment 10 may exhibit certain flavor differences between the first and second usage modes. For example, in the first usage mode, the matrix segment 10 maintains a monolithic structure, and its heat conduction is relatively fast during heating. Therefore, the matrix segment 10 can produce an aerosol with a relatively burnt flavor. However, in the second usage mode, the matrix segment 10 may break, causing at least part of its heat conduction path to change, resulting in relatively slower heat conduction during heating. Consequently, the matrix segment 10 can produce an aerosol with a relatively greenish flavor. Therefore, even if the shape and size of the heating chamber of the aerosol generating device are compatible with the matrix segment 10, users can choose between the first or second usage modes of the matrix segment 10 according to their flavor preferences. For example, if a user prefers a burnt flavor aerosol, they can directly use the monolithic matrix segment 10; if a user prefers a greenish flavor aerosol, they can break the matrix segment 10 by pressing or bending it before use.

[0063] In some embodiments, please refer to Figures 1 to 10 The matrix segment 10 may have an airflow channel 10b and a matrix wall 12 that forms the airflow channel 10b. The airflow channel 10b extends through at least one end of opposite ends of the matrix segment 10 along a first direction. A fracture guide groove 10a is provided on the matrix wall 12.

[0064] The statement that the airflow channel 10b penetrates at least one end of the matrix segment 10 along the first direction means that at least one end of the airflow channel 10b along the first direction is open to the outside. For example, the airflow channel 10b may penetrate only one end of the matrix segment 10, while the other end is closed. Alternatively, the airflow channel 10b may penetrate both ends of the matrix segment 10 along the first direction.

[0065] For the matrix segment 10 in its first use form, during the heating process of the matrix segment 10, aerosols can enter the airflow channel 10b and flow together with the airflow in the airflow channel 10b, thereby improving the extraction efficiency of aerosols.

[0066] The shape of the cross-section of the airflow channel 10b is not limited. For example, the shape of the cross-section can be circular, polygonal (including but not limited to triangle, square, rhombus, etc.), elliptical, runway-shaped, or irregular.

[0067] The number of airflow channels 10b can be one or more.

[0068] When there is one airflow channel 10b, there is also one matrix wall 12, which means that the matrix wall 12 surrounds the periphery of the airflow channel 10b.

[0069] Please see Figure 5 , Figure 6 , Figure 8 , Figure 9 and Figure 10 When there are multiple airflow channels 10b, the matrix wall 12 includes a first matrix wall 121 located between two adjacent airflow channels 10b, and a fracture guide groove 10a may be provided on the first matrix wall 121.

[0070] Please see Figures 5 to 10 The matrix wall 12 may also include a second matrix wall 122 that forms the outer wall of the matrix segment 10, and both the first matrix wall 121 and the second matrix wall 122 are provided with fracture guide grooves 10a.

[0071] It should be noted that the matrix segment 10 with multiple airflow channels 10b may have only a first matrix wall 121 and no second matrix wall 122.

[0072] In addition, both the first matrix wall 121 and the second matrix wall 122 are matrix walls 12; the difference in name is only for descriptive purposes.

[0073] There are no restrictions on the arrangement of multiple airflow channels 10b. For example, multiple airflow channels 10b can be arranged in an axisymmetric, centrally symmetrical, grid, or matrix manner.

[0074] In one embodiment, the plurality of airflow channels 10b can be arranged as follows: Figure 7 The airflow channel 10b has a grid-like shape. The cross-sectional shape of the airflow channel 10b can be polygonal, and the polygons are evenly arranged to form a grid. For example, the cross-section of the airflow channel 10b is quadrilateral, and the sides of each airflow channel 10b are opposite each other and adjacent to each other, arranged in a grid shape.

[0075] In one implementation, please refer to Figure 9 The matrix segment 10 has a first region passing through the center of the matrix segment 10, and a plurality of airflow channels 10b surround the outer periphery of the first region.

[0076] Multiple airflow channels 10b can be arranged in a single loop or in multiple loops.

[0077] In one implementation, please refer to Figure 8 The second matrix wall 122 can enclose a receiving space, and the first matrix wall 121 is disposed within the receiving space, with the opposite sides of the first matrix wall 121 respectively connected to the second matrix wall 122. In other words, the two ends of the airflow channel 10b in the direction perpendicular to the first direction extend to the second matrix wall 122 respectively.

[0078] For example, please refer to Figure 8 On the projection plane perpendicular to the first direction, the projection of the first matrix wall 121 is wavy, that is, the cross-sectional shape of the airflow channel 10b can be wavy.

[0079] The projection of the first matrix wall 121 is wavy, which can facilitate the fracture of the first matrix wall 121.

[0080] Please see Figure 8 Along the extension direction of the cross section of the first matrix wall 121, the wave has alternating crests and troughs. The projection of the fracture guide groove 10a can be located at the trough of the wave-shaped projection of the first matrix wall 121, and the projection of the fracture guide groove 10a can also be located at the crest of the wave-shaped projection of the first matrix wall 121.

[0081] In some embodiments, please refer to Figures 1 to 6 The fracture guide groove 10a can extend circumferentially along the airflow channel 10b so that when the matrix segment 10 is in the second use mode, the matrix segment 10 is fractured into a plurality of mutually separated matrix bodies 11, and each matrix body 11 is arranged along the first direction.

[0082] There may be one fracture guide groove 10a extending circumferentially along the airflow channel 10b. There may also be multiple fracture guide grooves 10a extending circumferentially along the airflow channel 10b, and the multiple fracture guide grooves 10a may be evenly arranged along the first direction.

[0083] In other embodiments, please refer to Figure 10Alternatively, multiple fracture guide grooves 10a extending in the first direction can be provided around the airflow channel 10b.

[0084] Please continue reading. Figure 10 For an airflow channel 10b with a polygonal cross-section, fracture guide grooves 10a can be constructed at each corner of the airflow channel 10b. In other words, fracture guide grooves 10a are not only provided on the first matrix wall 121 located between adjacent airflow channels 10b, but also on the second matrix wall 122 surrounding the outermost ring of the airflow channel 10b. This allows the matrix segment 10 to fracture along the fracture guide grooves 10a, forming multiple matrix bodies 11 with similar shapes and polygonal side lengths perpendicular to the first direction.

[0085] The thickness of the matrix wall 12 (including the first matrix wall 121 and the second matrix wall 122) can be designed as needed. However, if the thickness of the matrix wall 12 is too small, the matrix wall 12 is prone to breakage when the fracture guide groove 10a is opened. Therefore, more preferably, the thickness of the matrix wall 12 can be 0.1 mm to 3 mm (including the endpoint value). For example, the thickness of the matrix wall 12 can be 0.1 mm, 0.7 mm, 1.4 mm, 2 mm, 2.5 mm, 3 mm, etc.

[0086] The depth of the fracture guide groove 10a can be designed as needed. However, if the depth of the fracture guide groove 10a on the matrix wall 12 is too large, the matrix wall 12 will easily fracture, and the matrix segment 10 will be difficult to maintain in the first use form. If the depth of the fracture guide groove 10a on the matrix wall 12 is too small, the matrix segment 10 will be difficult to fracture and will not be able to smoothly transition to the second use form. Therefore, more preferably, the depth of the fracture guide groove 10a can be 20%-75% of the thickness of the matrix wall 12 (including the endpoint value). For example, the depth of the fracture guide groove 10a can be 20%, 36%, 45%, 53%, 64%, 75% of the thickness of the matrix wall 12, etc.

[0087] In one specific embodiment, please refer to Figure 9 The matrix segment 10 comprises 82% tobacco powder, 15% HPMC (Hydroxypropyl Methyl Cellulose), 2% glycerin, and 1% peppermint extract flavoring.

[0088] HPMC, as a thermoplastic binder, provides processing toughness. Glycerin, as a plasticizer, can lower processing temperature. Peppermint extract flavoring, as a fragrance ingredient, provides flavor.

[0089] The above materials are mixed and then processed through a foaming molding process to form a porous integrated foam structure, with the volume of the pores accounting for 15% of the total volume of the matrix segment 10. After mixing, the melt flow index of the above materials is (25±10) g / 10 min at a temperature of 190℃; and the processing compressive strength is (45±10) N at a temperature of 140℃.

[0090] Please see Figure 9 The matrix segment 10 has a first region passing through its center, and a plurality of airflow channels 10b surround the outer periphery of the first region and penetrate both ends of the matrix segment 10 along a first direction. The airflow channels 10b have a circular cross-section and a diameter of 2 mm. The matrix wall 12 has a thickness of 0.5 mm.

[0091] Please see Figure 3 and Figure 4 The fracture guide groove 10a extends circumferentially along the airflow channel 10b, and the cross-sectional shape of the fracture guide groove 10a is V-shaped with a depth of 0.2 mm. Multiple fracture guide grooves 10a are arranged along a first direction, with a spacing of 1 mm between adjacent fracture guide grooves 10a in the first direction. The fracture force of the matrix wall 12 at the fracture guide groove 10a at room temperature is (4.5 ± 1.2) N. After fracturing to form multiple matrix bodies 11 under external force, the thickness of each matrix body 11 is (0.25 ± 0.05) mm.

[0092] In another specific embodiment, please refer to Figure 8 The matrix segment 10 comprises 78% tea powder, 18% polyvinyl alcohol (PVA), 3% propylene glycol, and 1% honey.

[0093] Polyvinyl alcohol (PVA), as a thermoplastic binder, provides processing toughness. Propylene glycol, as a plasticizer, improves flowability. Honey, as a flavoring agent, provides aroma.

[0094] The above materials are mixed and then processed by extrusion molding to form an integral extrusion structure. After mixing, the melt flow index of the above materials is (15±10) g / 10min at a temperature of 190℃; and the processing compressive strength is (35±5) N at a temperature of 140℃.

[0095] Please see Figure 8 The second matrix wall 122 encloses the receiving space. On a projection plane perpendicular to the first direction, the projection of the first matrix wall 121 is wavy. The wave crest spacing is 1.5 mm, and the wave height is 0.8 mm. The thickness of the matrix wall 12 is 0.3 mm.

[0096] The fracture guide groove 10a has a U-shaped groove surface and a depth of 0.18 mm. The fracture force of the matrix wall 12 at the fracture guide groove 10a at room temperature is (3.2±0.8) N. After being fractured by external force to form multiple matrix bodies 11, the thickness of each matrix body 11 is (0.15±0.03) mm.

[0097] In some embodiments, please refer to Figures 1 to 4 The aerosol-generating article may include a functional segment 20. For ease of description, the two opposite ends of the matrix segment 10 along the first direction are referred to as the proximal lip end and the distal lip end, respectively. The proximal lip end is the end closer to the user's oral cavity, and the distal lip end is the end farther from the user's oral cavity. The functional segment 20 may be located at the proximal lip end and / or the distal lip end of the matrix segment 10 according to its function.

[0098] For example, please continue reading Figures 1 to 4 The functional segment 20 includes a filter segment 21, which is located near the lip end of the matrix segment 10.

[0099] The filter section 21 is designed to come into contact with the user's mouth during inhalation to filter aerosols.

[0100] The materials of the filter section 21 include, but are not limited to, one or more combinations of PE (polyethylene), PLA (polylactic acid), PBAT (butylene adipate-co-terephthalate), PP (polypropylene), cellulose acetate, and cellulose acrylic.

[0101] In other embodiments, functional segment 20 may also omit the filter segment 21. For example, the aerosol generating device may be equipped with a nozzle that can be reused or used only once. The nozzle may be used in conjunction with an aerosol generating product that does not have a filter segment 21 to replace the filter segment 21.

[0102] For example, please continue reading Figures 1 to 4 The functional section 20 includes a cooling section 22, which is located near the lip end of the matrix section 10. The aerosol is cooled as it passes through the cooling section 22.

[0103] Functional section 20 can be equipped with both cooling section 22 and filtration section 21, with filtration section 21 located on the side of cooling section 22 away from substrate section 10.

[0104] In some other embodiments, the cooling section 22 may be omitted.

[0105] For example, please continue reading Figures 1 to 4The functional segment 20 includes a front plug segment 23 disposed at the distal lip end of the matrix segment 10. The front plug segment 23 can prevent the matrix segment 10 from shrinking and falling off after heating and from adsorbing backflowing aerosols.

[0106] In some other embodiments, the front plug section 23 may be omitted.

[0107] In the description of this application, the references to terms such as "in one embodiment," "in some embodiments," "in other embodiments," "in yet another embodiment," or "exemplary," 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 a suitable manner in any one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine the different embodiments or examples described in this application, as well as the features of the different embodiments or examples.

[0108] 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 are included within the scope of protection of this application.

Claims

1. A matrix segment, characterized in that, The matrix segment is an integral structure with a fracture guide groove; the matrix segment has a first use mode and a second use mode. When the matrix segment is in the first use mode, the matrix segment maintains the integral structure. When the matrix segment is in the second use mode, the matrix segment fractures along the fracture guide groove under the action of external force.

2. The matrix segment according to claim 1, characterized in that, The matrix segment has an airflow channel and a matrix wall that forms the airflow channel. The airflow channel passes through at least one of the opposite ends of the matrix segment along a first direction, and the fracture guide groove is disposed on the matrix wall.

3. The matrix segment according to claim 2, characterized in that, The fracture guide groove extends circumferentially along the airflow channel so that when the matrix segment is in the second use mode, the matrix segment fractures into a plurality of mutually separated matrix bodies, and each of the matrix bodies is arranged along the first direction.

4. The matrix segment according to claim 2 or 3, characterized in that, The number of airflow channels and the number of matrix walls are both multiple. The matrix walls include a first matrix wall located between two adjacent airflow channels and a second matrix wall that forms the outer wall of the matrix segment. The fracture guide groove is provided on both the first matrix wall and the second matrix wall.

5. The matrix segment according to claim 4, characterized in that, The second matrix wall encloses a receiving space, the first matrix wall is disposed within the receiving space, and the opposite sides of the first matrix wall are respectively connected to the second matrix wall.

6. The matrix segment according to claim 5, characterized in that, On a projection plane perpendicular to the first direction, the projection of the first matrix wall is wavy, and the projection of the fracture guide groove is located at the trough of the wavy projection of the first matrix wall.

7. The matrix segment according to claim 2 or 3, characterized in that, The number of airflow channels is multiple, and the multiple airflow channels are arranged in a grid pattern; and / or, The thickness of the matrix wall is 0.1 mm to 3 mm; and / or, The depth of the fracture guide groove is 20%-75% of the thickness of the matrix wall.

8. The matrix segment according to claim 1, characterized in that, The matrix segment is in a spiral shape extending in a first direction.

9. The matrix segment according to any one of claims 1-3, characterized in that, The fracture guide groove is a laser groove; or, The matrix segment is an extruded integral structure or an injection molded integral structure.

10. An aerosol-generating product, characterized in that, include: The matrix segment according to any one of claims 1-9.

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