Aerosol-generating article and preparation method therefor, and aerosol-generating system

Abstract

The present application relates to an aerosol-generating article and a preparation method therefor, and an aerosol-generating system. The aerosol-generating article comprises a solid aerosol-generating substrate portion (1), wherein a heating layer (2) is printed on the surface of the aerosol-generating substrate portion (1); the heating layer (2) can be heated by induction.

Description

Aerosol-generating products and their preparation methods, aerosol generation systems Technical Field

[0001] This application relates to the field of aerosol generation technology, and in particular to an aerosol generation product and its preparation method, and an aerosol generation system. Background Technology

[0002] In the heat-not-combustible aerosol generation technology, the smoking matrix of the aerosol generation product is mainly in the form of particles or tobacco shreds. The smoking matrix is ​​heated by a central heating method to generate aerosol by smoking the smoking matrix.

[0003] In use, the aerosol generating product is loaded into the aerosol generating device, and the heating element of the aerosol generating device is inserted into the aerosol generating product, heating the smoke-generating matrix when energized. However, this heating method can damage the original structure of the aerosol generating product, easily causing debris to fall into the aerosol generating device, or leaving residues that adhere to the heating element, requiring frequent cleaning of the aerosol generating device. Summary of the Invention

[0004] In view of the above-mentioned deficiencies in related technologies, this application provides an aerosol generating product and its preparation method, as well as an aerosol generating system, to solve the technical problem that aerosol generating products are prone to leaving residues in aerosol generating devices.

[0005] The technical solution adopted by this application to solve its technical problem is: to construct an aerosol generating product, including a solid smoke-generating matrix part, wherein a heating layer is printed on the surface of the smoke-generating matrix part, and the heating layer is a heating layer.

[0006] In some embodiments, the smoke-generating matrix portion is columnar, and the heating layer is located on at least one of the upper end face and the lower end face of the smoke-generating matrix portion; or, the smoke-generating matrix portion is flattened columnar, and the heating layer is disposed on the flattened side of the outer peripheral surface of the smoke-generating matrix portion.

[0007] In some embodiments, the thickness of the heating layer is at least 0.5 μm; and / or, the area of ​​the heating layer is at least 1 / 100 of the area of ​​the outer surface on the smoke-generating matrix on which the heating layer is disposed.

[0008] In some embodiments, the interior of the smoke-generating matrix portion is porous and forms micropores.

[0009] In some embodiments, the smoke-generating matrix portion is provided with an airflow channel that extends through the upper and lower surfaces of the smoke-generating matrix portion.

[0010] In some embodiments, the aerosol generating article further includes a package and a filter, wherein the smoke-generating matrix and the filter are coaxially disposed within the package.

[0011] In some embodiments, the smoke-generating matrix portion and the filter portion are spaced apart in the axial direction of the package, and the package forms a cooling section between the smoke-generating matrix portion and the filter portion.

[0012] In some embodiments, the cooling section is a cavity formed by the package, the smoke-generating matrix, and the filter.

[0013] In some embodiments, the cooling section is provided with cooling holes communicating with the outside, the cooling holes being configured to communicate with the outside when the aerosol generating article is installed in the aerosol generating device. In some embodiments, the smoke-generating matrix portion is flat.

[0014] In some embodiments, the left and right sides of the smoke-generating matrix portion are arc surfaces, and in a radial section, the angle formed by connecting the two ends of the arc formed by the arc on either side of the radial section with the geometric center of the section is at least >15°.

[0015] In some embodiments, the aerosol generating article further includes a heat insulation layer, which is disposed at least between the heating layer and the package.

[0016] In some embodiments, the aerosol generating article further includes an anti-scalding section disposed at one end of the smoke-generating matrix portion away from the filter portion.

[0017] In some embodiments, the aerosol generating article has an axial length of 30-50 mm and a maximum radial dimension of 6.3-7.8 mm; and / or, the axial length of the smoke-generating matrix portion is 5-20 mm; and / or, the axial length of the filter portion is 5-10 mm.

[0018] In some embodiments, the ventilation rate of the aerosol-generating article is 30-50%, and / or the suction resistance is 800-1200 Pa.

[0019] This application also provides an aerosol generation system, including an aerosol generation device and an aerosol generation article of any of the above embodiments, wherein the aerosol generation article is detachably installed in the aerosol generation device.

[0020] This application also provides a method for preparing the aerosol-generating article in any of the above embodiments, comprising:

[0021] A solid smoke-generating matrix portion is provided, and a heating layer is printed on the surface of the smoke-generating matrix portion;

[0022] Provide a filtration unit;

[0023] A cylindrical package is provided; the smoke-generating matrix and the filter are respectively filled into both ends of the package, with a gap between the smoke-generating matrix and the filter, to obtain an aerosol-generating product; or,

[0024] A package is provided, and the smoke-generating matrix portion and the filter portion are wrapped with the package, with a gap between the smoke-generating matrix portion and the filter portion, to obtain an aerosol-generating product.

[0025] The aerosol generating articles and their preparation methods, as well as the aerosol generating system of this application, have the following beneficial effects:

[0026] In this aerosol generating product, the smoke-generating matrix is ​​solid, and the heating layer is printed on the surface of the smoke-generating matrix, forming an integral whole with it. In use, the aerosol generating product is installed in the aerosol generating device. When the aerosol generating device is powered on and forms an induction area, the heating layer senses the heat and heats the smoke-generating matrix, causing it to produce aerosols. Heating can be achieved without damaging the original structure of the smoke-generating matrix during use, which facilitates the installation and replacement of the aerosol generating product and solves the problem of residues easily left in the aerosol generating device.

[0027] In addition, the aerosol generating product has a simple structure and is easy to manufacture. The filter part and the smoke-generating matrix part printed with the heating layer are both integral parts. During manufacturing, it is only necessary to place the filter part and the smoke-generating matrix part inside the package to prepare the aerosol generating product. Attached Figure Description

[0028] The present application will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0029] Figure 1 is a schematic diagram of the structure of an aerosol-generated article according to an embodiment of this application;

[0030] Figure 2 is a cross-sectional structural diagram of the aerosol-generated product shown in Figure 1;

[0031] Figure 3 is a schematic diagram of the structure of an aerosol-generated article according to another embodiment of this application;

[0032] Figure 4 is a schematic cross-sectional view of the aerosol-generated product shown in Figure 3.

[0033] Figure 5 is a schematic diagram of the structure of an aerosol-generated article according to another embodiment of this application;

[0034] Figure 6 is a cross-sectional structural diagram of the aerosol-generated product shown in Figure 5.

[0035] Figure 7 is a schematic diagram of the cross-sectional (radial section) structure of the smoke-generating matrix portion according to an embodiment of this application;

[0036] Figure 8 is a schematic diagram of the cross-sectional (radial section) structure of the smoke-generating matrix portion according to an embodiment of this application;

[0037] Figure 9 is a schematic diagram of the structure of an aerosol-generated article according to another embodiment of this application;

[0038] Figure 10 is a schematic diagram of the structure of an aerosol generation system according to an embodiment of this application;

[0039] Figure 11 is a schematic flowchart of a method for preparing an aerosol-generated article according to an embodiment of this application;

[0040] Figure 12 is a schematic flowchart of a method for preparing an aerosol-generated article according to another embodiment of this application.

[0041] In the attached diagram, 1. Smoke-generating matrix, 11. Upper end face, 12. Lower end face, 13. Outer peripheral surface, 131. Arc surface, 132. Flat surface, 14. Micropores, 15. Airflow channel, 2. Heating layer, 3. Wrapping component, 4. Filter section, 5. Anti-scalding section, 51. Anti-scalding cavity, 52. Heat insulation component, 6. Cooling section, 61. Cooling hole, 7. Heat insulation layer, 10. Aerosol generating device, 101. Receptacle. Detailed Implementation

[0042] To provide a clearer understanding of the technical features, objectives, and effects of this application, the specific embodiments of this application are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the orientations or positional relationships indicated by terms such as "upper," "lower," "left," "right," "front," "rear," "horizontal," "inner," "outer," and "radial" are based on the orientations or positional relationships shown in the accompanying drawings, and are constructed and operated in a specific orientation. They are only for the convenience of describing this technical solution and do not indicate that the device or element referred to must have a specific orientation; therefore, they should not be construed as limitations on this application.

[0043] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "linking," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. When an component is referred to as being "on" or "below" another component, the component can be located "directly" or "indirectly" on the other component, or there may be one or more intermediary components. The terms "first," "second," etc., are only for the convenience of describing this technical solution and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0044] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application may also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.

[0045] Figures 1 and 2 illustrate an aerosol-generating article according to an embodiment of this application. As shown in Figures 1 and 2, the aerosol-generating article includes a solid smoke-generating matrix 1, and a heating layer 2 is printed on the surface of the smoke-generating matrix 1. The heating layer 2 is inductively heated. Here, "solid smoke-generating matrix" refers to the smoke-generating matrix 1 being a molded body, rather than a loose form such as bulk particles, loose tobacco shreds, or aggregated flakes. For example, the smoke-generating matrix 1 can be formed by extruding or stamping the smoke-generating material to create a molded body with a certain degree of air permeability. The smoke-generating material can be a mixture of tobacco or non-tobacco plants, as well as smoke-generating agents, polysaccharides, etc., solidified and molded.

[0046] Understandably, as shown in Figure 10, during use, the aerosol generating product is installed in the aerosol generating device 10. When the aerosol generating device 10 is energized to form an induction area, the heating layer 2 is induced to heat up and heats the smoke-generating matrix 1, causing it to generate aerosols. The heating process can be achieved without damaging the original structure of the smoke-generating matrix 1, which facilitates the installation and replacement of the aerosol generating product and solves the problem of easily leaving residues in the aerosol generating device 10.

[0047] In some embodiments, the heating layer 2 can be a magnetic induction heating layer. When the aerosol generating device 10 is energized to form a magnetic induction area, there is an alternating magnetic field in the magnetic induction area. The heating layer 2 senses the magnetic field and generates heat to heat the smoke-generating matrix 1.

[0048] Understandably, the heating layer 2 can be distributed on the entire outer surface of the smoke-generating matrix portion 1, or located on at least one of the upper end surface 11, lower end surface 12, or outer peripheral surface 13 of the smoke-generating matrix portion 1.

[0049] In some embodiments, the smoke-generating matrix 1 is columnar, and the heating layer 2 is located on at least one of the upper end surface 11 and the lower end surface 12 of the smoke-generating matrix 1, so as to facilitate the printing of the heating layer 2 onto the smoke-generating matrix 1 by a printing process. It is understood that the heating layer 2 may be located on the upper end surface 11 and the lower end surface 12 of the smoke-generating matrix 1.

[0050] In some embodiments, as shown in FIG5, the smoke-generating matrix portion 1 is in the shape of a flat column, and the heating layer 2 is disposed on the flat surface 132 side of the outer peripheral surface 13 of the smoke-generating matrix portion 1, so as to facilitate the printing of the heating layer 2 onto the smoke-generating matrix portion 1 by a printing process, and the heat can more easily penetrate from the outer surface. Here, "flat surface 132" refers to the outer surface of the smoke-generating matrix portion 1 that is closer to the center of the smoke-generating matrix portion 1.

[0051] In some embodiments, as shown in Figures 1 to 4, the smoke-generating matrix 1 is in the shape of a flat column, and the heating layer 2 is disposed on the upper end surface 11 and the lower end surface 12 of the smoke-generating matrix 1.

[0052] In some embodiments, the heating layer 2 is disposed on the entire outer peripheral surface 13 of the smoke-generating matrix portion 1, that is, the heating layer 2 is disposed on the arc surface 131 and the flat surface 132 of the smoke-generating matrix portion 1.

[0053] Understandably, as shown in Figures 1 and 8, for example, the smoke-generating matrix 1 is racetrack-shaped, which includes an arc surface 131 side and a flat surface 132 side that are disposed opposite to each other. When the heating layer 2 is distributed on the entire outer peripheral surface 13, that is, the heating layer 2 is simultaneously distributed on the outer surfaces of the arc surface 131 side and the flat surface 132 side of the smoke-generating matrix 1.

[0054] In some embodiments, the area on the surface of the smoke-generating matrix 1 where the heating layer 2 is printed is a heating area. The heating layer 2 can be a single heating film or a heating pattern. In some embodiments, the heating layer 2 is a heating pattern that is uniformly distributed in the heating area. For example, the heating layer 2 can be a heating trace pattern, a matrix pattern, a grid, etc. This allows the heat from the heating layer 2 to be transferred relatively uniformly to the outer surface of the smoke-generating matrix 1.

[0055] In some embodiments, the area of ​​the heating layer 2 is at least 1 / 100 of the area of ​​the outer surface on which the heating layer 2 is provided on the smoke-generating matrix portion 1, so as to ensure the heating effect.

[0056] In some embodiments, the heating layer 2 is located on the upper end surface 11 and the lower end surface 12 of the smoke-generating matrix portion 1. The area of ​​the heating layer 2 is uniformly distributed on the upper end surface 11 and the lower end surface 12, and the area of ​​the heating layer 2 accounts for at least 1 / 100 of the area of ​​the upper end surface 11 and the lower end surface 12.

[0057] In some embodiments, the thickness of the heating layer 2 is at least 0.5 μm to ensure heating effect.

[0058] As shown in Figure 2, in some embodiments, the interior of the smoke-generating matrix 1 has a loose morphology and forms micropores 14, facilitating the discharge of aerosols generated by the smoke-generating matrix 1. In some embodiments, the smoke-generating matrix 1 can be a particle aggregate, and the gaps between particles and the particles themselves can constitute micropores 14. The pore size of the micropores 14 is at the micrometer or nanometer level, for example, 50 nm-20 μm, and further, 50 nm-150 nm.

[0059] In some embodiments, the smoke-generating matrix 1 is provided with an airflow channel 15, which penetrates the upper end face 11 and the lower end face 12 of the smoke-generating matrix 1. The airflow channel 15 is at least connected to the micropores 14, and the aperture of the airflow channel 15 is larger than that of the micropores 14. Understandably, the aerosol generated by the smoke-generating matrix 1 is discharged outward through the micropores 14 and then through the airflow channel 15.

[0060] The airflow channel 15 may have one, two, or more channels. When there is one airflow channel 15, it may be located at the center of the smoke-generating matrix 1, forming a central airflow channel 15. When there are two or more airflow channels 15, they may be evenly distributed in the smoke-generating matrix 1, and each airflow channel 15 may be parallel to each other, or at least the extension lines of some airflow channels 15 may intersect.

[0061] As shown in Figures 1 and 2, in some embodiments, the aerosol generating article further includes a wrapping element 3 and a filter element 4, with the smoke-generating matrix 1 and the filter element 4 coaxially disposed within the wrapping element 3. Understandably, the wrapping element 3 encloses the smoke-generating matrix 1 and the filter element 4 as a whole, and the filter element 4 filters and adsorbs the aerosol, achieving the effect of improving the purity and comfort of the aerosol. In some embodiments, the wrapping element 3 is cylindrical or rolled into a cylindrical shape.

[0062] As shown in Figures 1 to 6, in some embodiments, the smoke-generating matrix portion 1 and the filter portion 4 are spaced apart in the axial direction of the package 3, and the package 3 forms a cooling section 6 between the corresponding smoke-generating matrix portion 1 and the filter portion 4.

[0063] Understandably, the cooling section 6 is connected to the airflow channel 15, serving to store and cool the aerosol, while also preventing the aerosol from being repeatedly heated, thus improving the taste. In this embodiment, there is no need to set up an additional cooling section or support section.

[0064] In other embodiments, a support section and / or a cooling section may be provided between the smoke-generating matrix section 1 and the filter section 4.

[0065] As shown in Figures 1 to 6, in some embodiments, the cooling section 6 is provided with a cooling hole 61 that communicates with the outside world, so that fresh air can be introduced through the cooling hole 61 to dilute the cooling aerosol.

[0066] The cooling hole 61 is configured to connect with the outside when the aerosol generating product is installed in the aerosol generating device 10. As can be understood, as shown in Figure 10, when the aerosol generating product is installed in the aerosol generating device 10, the cooling hole 61 connects with the outside, allowing fresh air to be introduced to dilute the aerosol and lower its temperature, and also serving to adjust the suction resistance.

[0067] In some embodiments, the cooling hole 61 is located near one end of the filter section 4. Understandably, the mounting structure between the aerosol generating article and the aerosol generating device 10 can be configured such that, when the aerosol generating article is installed in the aerosol generating device 10, the portions of the filter section 4 and the cooling section 6 with the cooling hole 61 are exposed outside the aerosol generating device 10, thus exposing the cooling hole 61 to the air (as shown in FIG. 10) to achieve communication between the cooling hole 61 and the external air. Alternatively, the aerosol generating device 10 may have a structure that connects external ventilation to the cooling hole 61.

[0068] In some embodiments, the smoke-generating matrix portion 1 is flat, or the aerosol-generating article as a whole is flat. Understandably, the flat shape of the smoke-generating matrix portion 1 facilitates its heating.

[0069] Understandably, as shown in Figure 7, the radial cross-section of the smoke-generating matrix 1 has a first axis L1 located in the length direction and a second axis L2 located in the width direction. The first axis L1 may be perpendicular to the second axis L2. When the first axis L1 is larger than the second axis L2, it has a flat shape. The flat shape can be, for example, elliptical, racetrack-shaped, teardrop-shaped, bow-shaped, polygonal, etc. Understandably, when the smoke-generating matrix 1 has a flat shape, it is easier for the smoke-generating matrix 1 to be heated. When the aerosol-generating product has a flat shape, it is easier for the smoke-generating matrix 1 to be heated, while also fitting the mouthpiece better, providing better comfort, and reducing the likelihood of air leakage.

[0070] In some embodiments, the radial cross-section of the smoke-generating matrix portion 1 may also be circular, and the smoke-generating matrix portion 1 is cylindrical in shape as a whole.

[0071] In some embodiments, as shown in FIG8, the left and right sides of the smoke-generating matrix 1 are arc surfaces. In the radial section, the angle θ formed by connecting the two ends of the arc 131 on either side of the radial section with the geometric center O of the section is at least 15°, so as to facilitate the heating of the smoke-generating matrix 1.

[0072] Understandably, as shown in Figure 8, for example, when the radial cross-section of the smoke-generating matrix 1 is racetrack-shaped, the left and right sides of the smoke-generating matrix 1 are arc surfaces 131, and the front and rear sides are flat surfaces 132. The arc surface 131 on any side includes one end connected to the front flat surface 132 and another end connected to the rear flat surface 132. In the radial cross-section, the smoke-generating matrix 1 has a geometric center O. The first line L3 is formed by connecting the one end with the geometric center O, and the second line L4 is formed by connecting the other end with the geometric center O. The included angle θ between the first line L3 and the second line L4 is at least 15°.

[0073] In some embodiments, the radial cross-section of the smoke-generating matrix portion 1 may be irregularly shaped. When the radial cross-section of the smoke-generating matrix portion 1 is irregularly shaped, the included angle on the left and right sides may be the same or different. For example, the included angle on the left and right sides may both be 20°; or, the included angle on one side may be 20° and the included angle on the other side may be 25°.

[0074] In some embodiments, at least the filter part 4 is flat in shape. Understandably, the flat shape of the filter part 4 makes it fit the mouth shape better, providing better comfort and reducing the likelihood of air leakage.

[0075] In some embodiments, the aerosol generating article further includes a heat insulation layer 7, which is disposed at least between the heating layer 2 and the package 3, or at least between the smoke-generating matrix portion 1 and the package 3. Understandably, the package 3 is generally made of paper material, and the heat insulation layer 7 is provided to prevent the package 3 from being heated and producing a burnt smell.

[0076] Understandably, the heat insulation layer 7 is at least disposed between the heating layer 2 and the wrapping component 3 to at least separate the heating layer 2 from the wrapping component 3 and prevent the heat from the heating layer 2 from heating the wrapping component 3.

[0077] As shown in Figures 4 and 6, the heat insulation layer 7 is disposed at least between the smoke-generating matrix 1 and the wrapping 3 to at least separate the smoke-generating matrix 1 and the wrapping 3, so as to prevent the heat of the smoke-generating matrix 1 from heating the wrapping 3.

[0078] In some embodiments, as shown in FIG2, the heat insulation layer 7 is disposed between the heating layer 2, the smoke-generating matrix portion 1 and the wrapping member 3, thereby preventing the heat from the heating layer 2 and the smoke-generating matrix portion 1 from being transferred to the wrapping member 3.

[0079] In some embodiments, the insulation layer 7 may also be distributed over the entire inner surface of the package 3.

[0080] In some embodiments, the aerosol generating article further includes a scalding section 5, which is disposed at the end of the smoke-generating matrix portion 1 away from the filter portion 4. Understandably, when the aerosol generating article needs to be replaced, it retains residual heat, especially when the heating layer 2 is located on the lower end face 12 of the smoke-generating matrix portion 1, making it easy to burn the hand. Therefore, a scalding section 5 is provided at the end of the smoke-generating matrix portion 1 away from the filter portion 4 to prevent burns.

[0081] As shown in Figure 2, in some embodiments, the anti-scalding section 5 includes an anti-scalding cavity 51, and the wrapping member 3 is formed between the lower end face 12 of the smoke-generating matrix portion 1 and the end of the wrapping member 3 away from the filter portion 4. The anti-scalding cavity 51 serves to separate the smoke-generating matrix portion 1, thereby achieving anti-scalding.

[0082] In some embodiments, the anti-scalding section 5 includes a heat insulation element 52, and in some embodiments, the periphery of the heat insulation element 52 is connected to or abuts against the wrapping element 3. In some embodiments, the heat insulation element 52 may be disposed within the anti-scalding cavity 51.

[0083] In some embodiments, the heat insulation element 52 may also be disposed on the outside of the package 3 and fixed to the package 3.

[0084] In some embodiments, as shown in FIG9, the heat insulation member 52 may be in the form of a cylindrical structure, and the heat insulation member 52 is sleeved on the outer periphery of the wrapping member 3, thereby achieving anti-scalding in the circumferential direction of the wrapping member 3; in some embodiments, the heat insulation member 52 may be in the form of a sheet, and the periphery of the heat insulation member 52 is connected to the wrapping member 3, sealing the end of the wrapping member 3 away from the filter part 4.

[0085] In some embodiments, the axial length of the aerosol generating article is 30-50 mm, and the maximum radial dimension is 6.3-7.8 mm; in some embodiments, the axial length of the smoke-generating matrix 1 is 5-20 mm; in some embodiments, the axial length of the filter section is 5-10 mm.

[0086] In some embodiments, the ventilation rate of the aerosol-generating article is 30-50%, and in some embodiments, the suction resistance of the aerosol-generating article is 800-1200 Pa.

[0087] This application also provides an aerosol generation system, as shown in FIG10. The aerosol generation system includes an aerosol generation device 10 and the aforementioned aerosol generation article, wherein the aerosol generation article is detachably installed in the aerosol generation device 10.

[0088] In some embodiments, the aerosol generating apparatus 10 is provided with a receiving cavity 101 for mounting the aerosol generating article, the receiving cavity 101 being configured such that when the aerosol generating article is mounted in the receiving cavity 101, the cooling hole 61 communicates with the outside.

[0089] In some embodiments, the cooling hole 61 is exposed outside the receiving cavity 101 (as shown in FIG10); in some embodiments, the cooling hole 61 communicates with the outside air via the receiving cavity 101.

[0090] This application also provides a method for preparing an aerosol-generated article, as shown in Figure 11. In some embodiments, the method for preparing the aerosol-generated article includes:

[0091] A solid smoke-generating matrix 1 is provided, and a heating layer 2 is printed on the surface of the smoke-generating matrix 1;

[0092] Provide filter section 4;

[0093] A cylindrical package 3 is provided; a smoke-generating matrix 1 and a filter 4 are respectively filled into both ends of the package 3, with a gap between the smoke-generating matrix 1 and the filter 4, to obtain an aerosol-generating product.

[0094] Understandably, the package 3 is pre-formed into a cylindrical structure. When preparing the aerosol-generating product, the smoke-generating matrix 1 and the filter 4 can be filled into the package 3 from both ends, making assembly convenient. In some embodiments, the package 3 is made of rigid paper, which has good support strength.

[0095] As shown in Figure 12, in some embodiments, the method for preparing an aerosol-generating article includes: providing a solid smoke-generating matrix 1 and printing a heating layer 2 on the surface of the smoke-generating matrix 1.

[0096] Provide filter section 4;

[0097] A package 3 is provided, and the smoke-generating matrix part 1 and the filter part 4 are wrapped with the package 3, with a gap between the smoke-generating matrix part 1 and the filter part 4, to obtain an aerosol generating product.

[0098] Understandably, the wrapping element 3 is used to wrap around and enclose the outer periphery of the smoke-generating matrix part 1 and the filter part 4 to form an aerosol-generating product, wherein the wrapping element 3 is wound into a cylindrical shape.

[0099] In some embodiments, the lower end face 12 of the smoke-generating matrix portion 1 is spaced a certain distance from the end of the wrapping member 3 away from the filter portion 4, thereby forming an anti-scalding cavity 51 between the lower end face 12 of the smoke-generating matrix portion 1 and the end of the wrapping member 3 away from the filter portion 4. This anti-scalding cavity 51 serves to isolate the smoke-generating matrix portion 1, thereby achieving anti-scalding.

[0100] Understandably, the aerosol-generating article prepared can be the aerosol-generating article in any of the above embodiments, or aerosol-generating article in combination of any of the above embodiments.

Claims

1. An aerosol-generating article, characterized in that, The smoking substrate part (1) includes a solid columnar smoking substrate part (1), and a heating layer (2) is printed on the surface of the smoking substrate part (1), and the heating layer (2) can be inductively heated.

2. An aerosol-generating article according to claim 1, wherein, The thickness of the heating layer (2) is at least 0.5 μm. The area of the heating layer (2) is at least 1 / 100 of the area of the surface of the smoking substrate part (1) on which the heating layer (2) is provided.

3. An aerosol-generating article according to claim 1, wherein, The smoking substrate part (1) is in a loose form and forms micropores (14) inside.

4. An aerosol-generating article according to claim 3, wherein, The smoking substrate part (1) is provided with an airflow channel (15) that penetrates the upper end surface (11) and the lower end surface (12) of the smoking substrate part (1).

5. An aerosol-generating article according to any one of claims 1 to 4, wherein, The aerosol generating article further includes a wrapping member (3) and a filter part (4), and the smoking substrate part (1) and the filter part (4) are coaxially arranged in the wrapping member (3).

6. An aerosol-generating article according to claim 5, wherein, The smoking substrate part (1) and the filter part (4) are arranged in the axial direction of the wrapping member (3) with a space therebetween, and the wrapping member (3) forms a cooling section (6) corresponding to the space between the smoking substrate part (1) and the filter part (4).

7. An aerosol-generating article according to claim 6, wherein, The cooling section (6) is provided with a cooling hole (61) that communicates with the outside, and the cooling hole (61) is configured to communicate with the outside when the aerosol generating article is mounted in an aerosol generating device (10).

8. An aerosol-generating article according to claim 5, wherein, The smoking substrate part (1) is in a flat shape.

9. An aerosol-generating article according to claim 8, wherein, The left and right sides of the smoking substrate part (1) are arc surfaces (131), and in a radial cross section, the included angle between the two ends of the arc line formed by the arc surface (131) on any one side and the geometric center of the cross section is at least 15°.

10. An aerosol-generating article according to claim 5, wherein, The aerosol generating article further includes a heat insulation layer (7) arranged at least between the heating layer (2) and the wrapping member (3).

11. An aerosol-generating system comprising: The aerosol generating article according to any one of claims 1-10 is detachably mounted in the aerosol generating device.

12. A method of manufacturing an aerosol-generating article for manufacturing an aerosol- generating article according to any one of claims 1 to 10, characterised in that, The aerosol generating article includes: A solid smoking substrate part (1) is provided, and a heating layer (2) is printed on the surface of the smoking substrate part (1); A filter part (4) is provided; A cylindrical wrapping member (3) is provided, and the smoking substrate part (1) and the filter part (4) are respectively filled into the two ends of the wrapping member (3), and a space is left between the smoking substrate part (1) and the filter part (4) to obtain an aerosol generating article; or A wrapping member (3) is provided, and the smoking substrate part (1) and the filter part (4) are wrapped by the wrapping member (3) with a space left between the smoking substrate part (1) and the filter part (4) to obtain an aerosol generating article.

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