Aerosol generating product and aerosol generating system

Abstract

The utility model relates to an aerosol generating product and an aerosol generating system. The aerosol generating product comprises a solid fuming substrate part, a heating layer is printed on the surface of the fuming substrate part, and the heating layer can be inductively heated. In the aerosol generating product, the fuming substrate part is solid, and the heating layer is printed on the surface of the fuming substrate part and forms a whole with the fuming substrate part; when the aerosol generating product is used, the aerosol generating product is installed in an aerosol generating device, and when the aerosol generating device is electrified to form an induction area, the heating layer inductively emits heat and heats the fuming substrate part, so that the fuming substrate part fumes to generate aerosol; in the using process, heating can be achieved without damaging the original structure of the fuming substrate part, installation and replacement of the aerosol generating product are facilitated, and meanwhile the problem that residues are prone to being left in the aerosol generating device is solved.

Description

Technical Field

[0001] This application relates to the technical field of aerosol generation, and in particular, to an aerosol generation article and an aerosol generation system. Background Art

[0002] In the aerosol generation technology of heat-not-burn, the smoking matrix part of the aerosol generation article is mainly in the form of particles or shredded tobacco. The center heating method is used to heat the smoking matrix part to make the smoking matrix part emit smoke to generate aerosol.

[0003] During use, the aerosol generation article is loaded into the aerosol generation device. The heating element of the aerosol generation device is inserted into the aerosol generation article, and the smoking matrix part is heated in the energized state. However, this heating method will damage the original structure of the aerosol generation article, and it is easy to drop debris in the aerosol generation device, or there are residues left sticking to the heating element, and the aerosol generation device needs to be cleaned frequently. Summary of the Utility Model

[0004] Aiming at the above defects of the prior art, this application provides an aerosol generation article and an aerosol generation system to solve the technical problem that residues are likely to be left in the aerosol generation device by the aerosol generation article.

[0005] The technical solution adopted by this application to solve its technical problems is: to construct an aerosol generation article, including a solid smoking matrix part, on the surface of which a heating layer is printed, and the heating layer is a heating layer.

[0006] In some embodiments, the smoking matrix part is columnar, and the heating layer is located on at least one of the upper end face and the lower end face of the smoking matrix part; alternatively, the smoking matrix part is in the shape of a flat column, and the heating layer is arranged on the flat surface side of the outer peripheral surface of the smoking matrix part.

[0007] In some embodiments, the thickness of the heating layer is at least 0.5 μm; and / or, the area of the heating layer accounts for at least 1 / 100 of the area of the outer surface of the smoking matrix part where the heating layer is provided.

[0008] In some embodiments, the inside of the smoking matrix part is in a loose form and forms micropores.

[0009] In some embodiments, the smoking matrix part is provided with airway holes, and the airway holes penetrate the upper end face and the lower end face of the smoking matrix part.

[0010] In some embodiments, the aerosol generation article further includes a wrapper and a filter part, and the smoking matrix part and the filter part are coaxially arranged in the wrapper.

[0011] In some embodiments, the aerosol generating substrate part and the filter part are arranged at intervals in the axial direction of the package, and a cooling section is formed in the package between the aerosol generating substrate part and the filter part.

[0012] In some embodiments, the cooling section is a cavity formed by the package, the aerosol generating substrate part and the filter part.

[0013] In some embodiments, the cooling section is provided with cooling holes communicating with the outside, and the cooling holes are configured to communicate with the outside when the aerosol generating article is installed in the aerosol generating device. In some embodiments, the aerosol generating substrate part has a flat shape.

[0014] In some embodiments, the left and right sides of the aerosol generating substrate part are arc surfaces. In a radial cross-section, the included angle formed by connecting the two ends of the arc formed by any one of the arc surfaces in the radial cross-section to the geometric center of the cross-section is at least >15°.

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

[0016] In some embodiments, the aerosol generating article further includes a heat insulation section, and the heat insulation section is provided at one end of the aerosol generating substrate part facing away from the filter part.

[0017] 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; and / or, the axial length of the aerosol generating substrate part is 5-20 mm; and / or, the axial length of the filter part is 5-10 mm.

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

[0019] The present application also provides an aerosol generating system, including an aerosol generating device and an aerosol generating article according to any one of the above embodiments, and the aerosol generating article is detachably installed in the aerosol generating device.

[0020] The present application also provides a preparation method of an aerosol generating article according to any one of the above embodiments, including:

[0021] Providing a solid aerosol generating substrate part, and printing a heating layer on the surface of the aerosol generating substrate part;

[0022] Providing a filter part;

[0023] Provide a cylindrical package; respectively fill the aerosol-forming substrate part and the filter part at both ends of the package, and leave a gap between the aerosol-forming substrate part and the filter part to obtain an aerosol-generating article; or,

[0024] Provide a package, use the package to wrap the aerosol-forming substrate part and the filter part, and leave a gap between the aerosol-forming substrate part and the filter part to obtain an aerosol-generating article.

[0025] Implementing the aerosol-generating article and aerosol-generating system of the present application has the following beneficial effects:

[0026] In this aerosol-generating article, the aerosol-forming substrate part is in a solid form, and the heating layer is printed on the surface of the aerosol-forming substrate part, forming an integral body with the aerosol-forming substrate part; during use, the aerosol-generating article is installed in an aerosol-generating device. When the aerosol-generating device is powered on to form an induction area, the heating layer senses heat and heats the aerosol-forming substrate part to generate aerosol by smoking; during the use process, heating can be achieved without destroying the original structure of the aerosol-forming substrate part, which is convenient for the installation and replacement of the aerosol-generating article, and at the same time solves the problem of easy residue left in the aerosol-generating device.

[0027] In addition, this aerosol-generating article has a simple structure and is easy to manufacture. The filter part and the aerosol-forming substrate part printed with the heating layer are both integral bodies. During manufacturing, only the filter part and the aerosol-forming substrate part need to be placed in the package to prepare the aerosol-generating article. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The following will further illustrate the present application in conjunction with the drawings. In the drawings:

[0029] Figure 1 is a schematic structural diagram of an aerosol-generating article according to an embodiment of the present application;

[0030] Figure 2 is Figure 1 a schematic cross-sectional structural diagram of the aerosol-generating article shown;

[0031] Figure 3 is a schematic structural diagram of an aerosol-generating article according to another embodiment of the present application;

[0032] Figure 4 is Figure 3 a schematic cross-sectional structural diagram of the aerosol-generating article shown;

[0033] Figure 5 is a schematic structural diagram of an aerosol-generating article according to yet another embodiment of the present application;

[0034] Figure 6 is Figure 5Schematic cross-sectional structure diagram of the aerosol generating article shown;

[0035] Figure 7 It is a schematic cross-sectional (radial cross-section) structure diagram of the smoke generating matrix part of an embodiment of the present application;

[0036] Figure 8 It is a schematic cross-sectional (radial cross-section) structure diagram of the smoke generating matrix part of an embodiment of the present application;

[0037] Figure 9 It is a schematic structure diagram of the aerosol generating article of another embodiment of the present application;

[0038] Figure 10 It is a schematic structure diagram of the aerosol generating system of an embodiment of the present application;

[0039] Figure 11 It is a schematic flow chart of the preparation method of the aerosol generating article of an embodiment of the present application;

[0040] Figure 12 It is a schematic flow chart of the preparation method of the aerosol generating article of another embodiment of the present application.

[0041] In the drawings, 1. Smoke generating matrix part, 11. Upper end face, 12. Lower end face, 13. Outer peripheral face, 131. Arc face, 132. Flat face, 14. Micropores, 15. Airway holes, 2. Heating layer, 3. Wrapping member, 4. Filter part, 5. Anti-scald section, 51. Anti-scald cavity, 52. Heat insulation member, 6. Cooling section, 61. Cooling holes, 7. Heat insulation layer, 10. Aerosol generating device, 101. Accommodation cavity. Detailed Description of the Embodiments

[0042] In order to have a clearer understanding of the technical features, objectives and effects of the present application, the specific embodiments of the present application will now be described in detail with reference to the accompanying drawings. In the following description, it should be understood that the orientation or positional relationships indicated by "upper", "lower", "left", "right", "front", "rear", "horizontal", "inner", "outer", "radial", etc. are based on the orientation or positional relationships shown in the drawings and are constructed and operated in a specific orientation. This is only for the convenience of describing the technical solution and does not indicate that the device or element referred to must have a specific orientation. Therefore, it should not be construed as a limitation to the present application.

[0043] It should also be noted that, unless otherwise clearly specified and limited, terms such as "installation", "connection", "linkage", "fixation", "setting" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral body; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. When a component is referred to as "above" or "below" another component, the component can be "directly" or "indirectly" located above the other component, or there may also be one or more intermediate components. Terms such as "first", "second", etc. are only for the convenience of describing the technical solution of the present application, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. can explicitly or implicitly include one or more of such features. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0044] In the following description, for the purpose of illustration rather than limitation, specific details such as specific system structures, technologies, etc. are presented in order to thoroughly understand the embodiments of the present application. However, those skilled in the art should clearly understand that the present application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details from interfering with the description of the present application.

[0045] Figure 1 and Figure 2 An aerosol-generating article showing an embodiment of the present application is as Figure 1 and Figure 2 shown. The aerosol-generating article includes a solid smoke-generating matrix part 1, and a heating layer 2 is printed on the surface of the smoke-generating matrix part 1. The heating layer 2 can be inductively heated. Among them, the "solid smoke-generating matrix part" means that the whole of the smoke-generating matrix part 1 is a formed body, rather than a loose form such as bulk particles, bulk cut tobacco, or gathered thin sheets. For example, the smoke-generating matrix part 1 can extrude or stamp the smoke-generating material to form a formed body with a certain air permeability. The smoke-generating material can be solidified and formed from a mixture of tobacco or non-tobacco plants, as well as a smoke agent, polysaccharide, etc.

[0046] It can be understood that, as shown in Figure 10 , during use, the aerosol-generating article is installed in the aerosol-generating device 10. When the aerosol-generating device 10 is powered on to form an induction area, the heating layer 2 inductively generates heat and heats the smoke-generating matrix part 1 to make it generate smoke to produce aerosol; during the use process, heating can be achieved without destroying the original structure of the smoke-generating matrix part 1, which is convenient for the installation and replacement of the aerosol-generating article, and at the same time solves the problem of easy residue left 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 powered on to form a magnetic induction region, there is an alternating magnetic field in the magnetic induction region. The heating layer 2 senses the magnetic field and generates heat to heat the smoke generating matrix part 1.

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

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

[0050] In some embodiments, as Figure 5 shown, the smoke generating matrix part 1 is a flat column, and the heating layer 2 is arranged on the side of the flat surface 132 of the outer peripheral surface 13 of the smoke generating matrix part 1, so as to facilitate printing the heating layer 2 onto the smoke generating matrix part 1 by a printing process, and the heat can penetrate in more easily from the outer surface. Here, the "flat surface 132" refers to the outer surface of the smoke generating matrix part 1 that is closer to the center of the smoke generating matrix part 1.

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

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

[0053] It can be understood that in combination with Figure 1 and Figure 8 shown, for example, the smoke generating matrix part 1 is in a runway shape, which includes opposite arc surface 131 sides and opposite flat surface 132 sides. 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 part 1.

[0054] In some embodiments, the area on the surface of the smoke-generating matrix part 1 where the heating layer 2 is printed is the heating area. The heating layer 2 can be an entire heating film or a heating pattern; in some embodiments, the heating layer 2 is a heating pattern, and the heating pattern is evenly distributed in the heating area. For example, the heating layer 2 can be a heating trace pattern, a matrix pattern, a grid, etc., so that the heat of the heating layer 2 can be transferred to the outer surface of the smoke-generating matrix part 1 relatively evenly.

[0055] In some embodiments, the area of the heating layer 2 accounts for at least 1 / 100 of the area of the outer surface of the smoke-generating matrix part 1 where the heating layer 2 is provided 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 part 1. The area of the heating layer 2 is evenly 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 the heating effect.

[0058] As Figure 2 shown, in some embodiments, the inside of the smoke-generating matrix part 1 is in a loose form and forms micropores 14, which facilitates the discharge of the aerosol generated by the smoke generation of the smoke-generating matrix part 1. In some embodiments, the smoke-generating matrix part 1 can be a particle aggregate, and the gaps between particles and the particles can both form the micropores 14. The pore diameter of the micropores 14 is at the micron or nanometer level. Exemplarily, it is 50 nm - 20 μm, and further, it can be 50 nm - 150 nm.

[0059] In some embodiments, the smoke-generating matrix part 1 is provided with airway holes 15, and the airway holes 15 penetrate through the upper end surface 11 and the lower end surface 12 of the smoke-generating matrix part 1. Among them, the airway holes 15 are at least connected to the micropores 14, and the pore diameter of the airway holes 15 is larger than that of the micropores 14. It can be understood that the aerosol generated by the smoke generation of the smoke-generating matrix part 1 is output outward through the micropores 14 and then through the airway holes 15.

[0060] The airway holes 15 can be provided with one, two or more than two. When there is one airway hole 15, the airway hole 15 can be located at the center of the smoke-generating matrix part 1 to form a central airway hole 15. When there are two or more airway holes 15, the airway holes 15 can be evenly distributed on the smoke-generating matrix part 1, and the airway holes 15 can be parallel to each other, or the extension lines of at least some of the airway holes 15 intersect.

[0061] As Figure 1 and Figure 2As shown, in some embodiments, the aerosol generating article further includes a wrapper 3 and a filter portion 4. The smoke generating matrix portion 1 and the filter portion 4 are coaxially disposed within the wrapper 3. It can be understood that the wrapper 3 wraps the smoke generating matrix portion 1 and the filter portion 4 into a whole, and the filter portion 4 filters and adsorbs the aerosol, achieving the effects of improving the purity and comfort of the aerosol. In some embodiments, the wrapper 3 is in a cylindrical shape or wound into a cylindrical shape.

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

[0063] It can be understood that the cooling section 6 communicates with the airway hole 15, serving to store the aerosol and cool it, and at the same time can prevent the aerosol from being reheated repeatedly, achieving the effect of improving the taste. In this embodiment, there is no need to additionally provide a cooling section or a support section.

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

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

[0066] The cooling hole 61 is configured to communicate with the outside when the aerosol generating article is installed in the aerosol generating device 10. It can be understood that, as Figure 10 shown, when the aerosol generating article is installed in the aerosol generating device 10, the cooling hole 61 communicates with the outside, and fresh air can be introduced through the cooling hole 61 to dilute and cool the aerosol, and it can also play a role in adjusting the draw resistance.

[0067] In some embodiments, the cooling hole 61 is provided at one end close to the filter portion 4. It can be understood that the installation 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 filter portion 4 and the part of the cooling section 6 provided with the cooling hole 61 are exposed outside the aerosol generating device 10, and by exposing the cooling hole 61 to the air (as Figure 10 shown), the cooling hole 61 can be made to communicate with the external air. Alternatively, the aerosol generating device 10 is provided with a structure for communicating the external ventilation with the cooling hole 61.

[0068] In some embodiments, the smoke generating matrix portion 1 is in a flat shape, or the whole aerosol generating article is in a flat shape. It can be understood that the flat shape of the smoke generating matrix portion 1 facilitates the heating of the smoke generating matrix portion 1.

[0069] Understandably, as Figure 7 shown, the radial cross-section of the aerosol-forming substrate portion 1 has a first axis L1 in the length direction and a second axis L2 in the width direction. The first axis L1 can be perpendicular to the second axis L2. When the first axis L1 is greater than the second axis L2, it is in a flat shape. The flat shape can be, for example, oval, racetrack-shaped, teardrop-shaped, bow-shaped, polygonal, etc. Understandably, when the aerosol-forming substrate portion 1 is in a flat shape, it is convenient for the aerosol-forming substrate portion 1 to be heated. When the aerosol-generating article is in a flat shape, while facilitating the heating of the aerosol-forming substrate portion 1, it fits the mouth shape better, has a better sense of comfort, and is not prone to air leakage.

[0070] In some embodiments, the radial cross-section of the aerosol-forming substrate portion 1 can also be circular, and the aerosol-forming substrate portion 1 is in an overall cylindrical shape.

[0071] In some embodiments, as Figure 8 shown, the left and right sides of the aerosol-forming substrate portion 1 are arc-shaped surfaces. In the radial cross-section, the angle θ formed by connecting the two ends of the arc formed by any one side of the arc-shaped surface 131 to the geometric center O of the cross-section is at least 15°, so as to facilitate the heating of the aerosol-forming substrate portion 1.

[0072] Understandably, as Figure 8 shown, for example, when the radial cross-section of the aerosol-forming substrate portion 1 is racetrack-shaped, the left and right sides of the aerosol-forming substrate portion 1 are arc-shaped surfaces 131, and the front and back sides are flat surfaces 132. Any one side of the arc-shaped surface 131 includes one end connected to the front flat surface 132 and the other end connected to the back flat surface 132. In the radial cross-section, the aerosol-forming substrate portion 1 has a geometric center O. The first connection line L3 is obtained by connecting this one end to the geometric center O, and the second connection line L4 is obtained by connecting the other end to the geometric center O. The angle θ between the first connection line L3 and the second connection line L4 is at least 15°.

[0073] In some embodiments, the radial cross-section of the aerosol-forming substrate portion 1 can be set in an irregular shape. When the radial cross-section of the aerosol-forming substrate portion 1 is set in an irregular shape, the angles on the left and right sides can be the same or different. For example, the angles on both the left and right sides are 20°; or, the angle on one side is 20°, and the angle on the other side is 25°.

[0074] In some embodiments, at least the filter portion 4 is in a flat shape. Understandably, when the filter portion 4 is in a flat shape, it fits the mouth shape better, has a better sense of comfort, and is not prone to air leakage.

[0075] In some embodiments, the aerosol-generating article further includes a heat-insulating layer 7, and the heat-insulating layer 7 is disposed at least between the heating layer 2 and the wrapper 3, or the heat-insulating layer 7 is disposed at least between the smoke-generating substrate portion 1 and the wrapper 3. It can be understood that the wrapper 3 is generally made of a paper material. By providing the heat-insulating layer 7, the wrapper 3 is prevented from being heated and generating a burnt smell.

[0076] It can be understood that the heat-insulating layer 7 is disposed at least between the heating layer 2 and the wrapper 3 to at least space apart the heating layer 2 and the wrapper 3, thereby preventing the heat of the heating layer 2 from heating the wrapper 3.

[0077] As Figure 4 and Figure 6 shown, the heat-insulating layer 7 is disposed at least between the smoke-generating substrate portion 1 and the wrapper 3 to at least space apart the smoke-generating substrate portion 1 and the wrapper 3, thereby preventing the heat of the smoke-generating substrate portion 1 from heating the wrapper 3.

[0078] In some embodiments, as Figure 2 shown, the heat-insulating layer 7 is disposed between the heating layer 2, the smoke-generating substrate portion 1 and the wrapper 3, so as to simultaneously prevent the heat of the heating layer 2 and the smoke-generating substrate portion 1 from being transferred to the wrapper 3.

[0079] In some embodiments, the heat-insulating layer 7 can also be distributed on the entire inner surface of the wrapper 3.

[0080] In some embodiments, the aerosol-generating article further includes a heat-insulating section 5, and the heat-insulating section 5 is disposed at one end of the smoke-generating substrate portion 1 facing away from the filter portion 4. It can be understood that when the aerosol-generating article needs to be replaced, the aerosol-generating article has a residual temperature. Especially when the heating layer 2 is located on the lower end surface 12 of the smoke-generating substrate portion 1, it is easy to burn the hand. Therefore, a heat-insulating section 8 is provided at one end of the smoke-generating substrate portion 1 facing away from the filter portion 4 to prevent burning the hand.

[0081] As Figure 2 shown, in some embodiments, the heat-insulating section 5 includes a heat-insulating cavity 51 formed between the lower end surface 12 of the smoke-generating substrate portion 1 and the end of the wrapper 3 away from the filter portion 4. The heat-insulating cavity 51 serves to separate the smoke-generating substrate portion 1, thereby achieving heat insulation.

[0082] In some embodiments, the heat-insulating section 5 includes a heat-insulating member 52. In some embodiments, the periphery of the heat-insulating member 52 is connected to or abuts against the wrapper 3. In some embodiments, the heat-insulating member 52 can be disposed in the heat-insulating cavity 51.

[0083] In some embodiments, the heat-insulating member 52 can also be disposed outside the wrapper 3 and fixed to the wrapper 3.

[0084] In some embodiments, as Figure 9As shown, the heat insulation member 52 can be in a cylindrical structure, and the heat insulation member 52 is sleeved on the outer periphery of the wrapping member 3, so as to achieve anti-scalding in the circumferential direction of the wrapping member 3; in some embodiments, the heat insulation member 52 can be in a sheet shape, and the peripheral edge of the heat insulation member 52 is connected to the wrapping member 3 to block one end of the wrapping member 3 away from the filtering portion 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 portion 1 is 5-20 mm; in some embodiments, the axial length of the filtering portion is 5-10 mm.

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

[0087] This application also provides an aerosol generating system, as Figure 10 shown, the aerosol generating system includes an aerosol generating device 10 and the above-mentioned aerosol generating article, and the aerosol generating article is detachably installed in the aerosol generating device 10.

[0088] In some embodiments, the aerosol generating device 10 is provided with a receiving cavity 101 for installing the aerosol generating article, and the receiving cavity 101 is configured such that when the aerosol generating article is installed 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 Figure 10 shown); in some embodiments, the cooling hole 61 communicates with the external air via the receiving cavity 101.

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

[0091] Providing a solid smoke generating matrix portion 1, and printing the heating layer 2 on the surface of the smoke generating matrix portion 1;

[0092] Providing a filtering portion 4;

[0093] Providing a cylindrical wrapping member 3; filling the smoke generating matrix portion 1 and the filtering portion 4 at both ends of the wrapping member 3 respectively, and leaving a gap between the smoke generating matrix portion 1 and the filtering portion 4 to obtain an aerosol generating article.

[0094] Understandably, the package 3 is preformed into a cylindrical structure. When preparing the aerosol generating article, the smoke generating matrix part 1 and the filter part 4 can be respectively filled into the package 3 from both ends, facilitating assembly. In some embodiments, the package 3 is made of hard paper and has good supporting force.

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

[0096] providing a filter part 4;

[0097] providing a package 3, using the package 3 to wrap the smoke generating matrix part 1 and the filter part 4, and leaving a gap between the smoke generating matrix part 1 and the filter part 4 to obtain the aerosol generating article.

[0098] Understandably, the package 3 is wound and wrapped around the outer peripheries of the smoke generating matrix part 1 and the filter part 4 to form the aerosol generating article, wherein the package 3 is wound into a cylindrical shape.

[0099] In some embodiments, there is a certain distance between the lower end surface 12 of the smoke generating matrix part 1 and one end of the package 3 away from the filter part 4, so as to form a scald prevention cavity 51 between the lower end surface 12 of the smoke generating matrix part 1 and the end of the package 3 away from the filter part 4. The scald prevention cavity 51 serves to isolate the smoke generating matrix part 1, thus achieving scald prevention.

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

[0101] The above uses specific examples to elaborate on the present application, which is only for helping to understand the present application and is not used to limit the present application. For those skilled in the technical field to which the present application belongs, according to the idea of the present application, several simple deductions, deformations or substitutions can also be made.

Claims

1. An aerosol generating product, characterized in that It comprises a solid columnar smoking matrix part (1), the surface of which is printed with a heating layer (2), and the heating layer (2) can be induction heated.

2. The aerosol-generating article according to claim 1, wherein The thickness of the heating layer (2) is at least 0.5 μm; And / or, the area of ​​the heat-generating layer (2) is at least 1 / 100 of the area of ​​the side of the smoking substrate portion (1) on which the heat-generating layer (2) is provided.

3. The aerosol-generating article according to claim 1, wherein The interior of the smoking substrate portion (1) is in a loose shape and has micropores (14).

4. The aerosol-generating article according to claim 3, wherein: The smoking matrix part (1) is provided with an airway hole (15), and the airway hole (15) passes through the upper end surface (11) and the lower end surface (12) of the smoking matrix part (1).

5. An aerosol generating article according to any one of claims 1 to 4, characterized in that The aerosol generating product further comprises a wrapping member (3) and a filter portion (4), wherein the smokable substrate portion (1) and the filter portion (4) are coaxially arranged in the wrapping member (3).

6. An aerosol generating article according to claim 5, characterized in that The smoking substrate portion (1) and the filter portion (4) are spaced apart in the axial direction of the wrapping member (3), and the wrapping member (3) forms a cooling section (6) between the smoking substrate portion (1) and the filter portion (4).

7. An aerosol-generating article according to claim 6, characterized in that The cooling section (6) is provided with a cooling hole (61) communicating with the outside, and the cooling hole (61) is configured to communicate with the outside when the aerosol generating product is installed on the aerosol generating device (10).

8. The aerosol-generating article of claim 5, wherein: The smoking substrate portion (1) is flat in shape.

9. An aerosol generating article according to claim 8, characterized in that The left and right sides of the smoking substrate part (1) are arc surfaces (131). On the radial section, the angle formed by the two ends of the arc formed by the arc surface (131) on either side in the radial section and the connecting line of the geometric center of the section is at least 15°.

10. The aerosol-generating article of claim 5, wherein: The aerosol generating article further comprises a heat insulating layer (7), wherein the heat insulating layer (7) is at least arranged between the heat generating layer (2) and the wrapping member (3).

11. An aerosol generating system, characterized in that: It comprises an aerosol generating device (10) and the aerosol generating article according to any one of claims 1 to 10, wherein the aerosol generating article can be detachably installed in the aerosol generating device.

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