Aerosol-generated products

Abstract

This application discloses an aerosol generating article, comprising: a shell; an aerosol generating matrix section disposed within the shell and configured to generate aerosols upon heating; and a sealing portion comprising a hollow tubular body having a first open end and a second open end disposed opposite each other along the length direction of the aerosol generating article, the first open end being adjacent to the aerosol generating matrix section, and the second open end being away from the aerosol generating matrix section and communicating with the outside; wherein, the sealing portion further comprises a stop member disposed at the first open end and connected to the tubular body, the stop member closing the first open end. Through the above method, the obstruction effect of the sealing portion of the aerosol generating article on external air during suction can be reduced.

Description

[Technical Field]

[0001] This application relates to the field of aerosol technology, and more particularly to an aerosol generating article. [Background Technology]

[0002] Traditional tobacco-generating matrices (e.g., cigarettes, cigars, etc.) produce tobacco smoke by burning tobacco during use. Existing technologies offer alternatives to these traditional tobacco-generating matrices by releasing compounds through heating without combustion. Examples of such products are aerosol generating devices, which typically include a housing chamber for housing the aerosol-generating article used in conjunction with the device, and a heating element for heating the article to produce an aerosol for the user to inhale.

[0003] Aerosol generating products are filled with a solid aerosol generating matrix segment (such as tobacco shreds). When heated, this matrix segment volatilizes to generate aerosols, which users can inhale by sucking them into the product. However, in existing aerosol generating products, the solid matrix residue after heating easily detaches from the product; or, during the removal of the product from the housing after heating, the residue detaches from the bottom, necessitating frequent cleaning of the aerosol generating device.

[0004] To solve the above-mentioned technical problems, in the existing related technologies, a sealing part is set at the tail end of the aerosol generating matrix. The sealing part can seal the tail end of the aerosol generating matrix, which can prevent the residual solid matrix after heating from falling off the bottom of the aerosol generating product. However, the current structural design of the sealing part partially hinders the entry of external air into the aerosol generating matrix section, resulting in insufficient aerosol extraction and thus affecting the taste of the aerosol. [Utility Model Content]

[0005] This application provides an aerosol generating article to solve the technical problem that the sealing part of existing aerosol generating articles obstructs the entry of external air into the aerosol generating matrix section.

[0006] At least one embodiment of this application provides an aerosol-generating article, comprising:

[0007] case;

[0008] An aerosol generation matrix segment is disposed within the shell and configured to generate aerosols upon heating and volatilization.

[0009] The sealing part includes a hollow tubular body, the tubular body having a first open end and a second open end that are disposed opposite to each other along the length direction of the aerosol generating product, the first open end being adjacent to the aerosol generating matrix section, and the second open end being away from the aerosol generating matrix section and communicating with the outside.

[0010] The sealing part further includes a stop member disposed at the first opening end and connected to the tubular body, the stop member closing the first opening end.

[0011] In one embodiment, the stop is connected to the tubular body by an adhesive.

[0012] In one embodiment, the adhesive has a thickness of 10 μm to 200 μm.

[0013] In one embodiment, the tubular body has a wall thickness of 0.1 mm to 0.5 mm.

[0014] In one embodiment, the tubular body has an extension length of 2.0 mm to 15 mm along the length direction of the aerosol-generated article.

[0015] In one embodiment, the tubular body has a circumferential length of 15 mm to 27 mm.

[0016] In one embodiment, the stop member is provided with a vent for external air to enter the aerosol generation matrix section, the vent having a diameter of 0.7 μm. 2 ~0.2mm 2 The opening area; or, the vent hole has a hydraulic diameter of 0.001 mm to 0.5 mm.

[0017] In one embodiment, the thickness of the tubular body is greater than the thickness of the shell; or, the hardness of the tubular body is greater than the hardness of the shell; or, the tensile strength of the tubular body is greater than the tensile strength of the shell.

[0018] In one embodiment, the stop has a thickness of 0.01 mm to 0.2 mm.

[0019] In one embodiment, the stop is made of a material having a void or microporous structure.

[0020] In one embodiment, the stop member has an air permeability of not less than 2000 CU.

[0021] In one embodiment, the aerosol generating article further includes a cooling section for cooling the aerosol, and a support section disposed between the cooling section and the aerosol generating matrix section, wherein the aerosol generating matrix section is held between the support section and the sealing portion.

[0022] The cooling section is provided with a first hollow area through which the aerosol flows, and the support section is provided with a second hollow area through which the aerosol flows. The cross-sectional area of ​​the first hollow area is greater than or equal to the cross-sectional area of ​​the second hollow area.

[0023] In one embodiment, the sealing portion is located within the housing.

[0024] The aerosol generating product provided in the above embodiments, by setting the tubular body of the sealing part to a hollow shape, makes the sealing part a hollow body, so that external air can smoothly enter the aerosol generating matrix section through the hollow area of ​​the tubular body, effectively reducing the obstruction effect of the sealing part on the external air. [Attached Image Description]

[0025] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0026] Figure 1 This is a schematic diagram of the structure of an aerosol-generated article provided in an embodiment of this application;

[0027] Figure 2 A schematic diagram of the assembly of the sealing part of an aerosol-generating article provided in an embodiment of this application;

[0028] Figure 3 for Figure 2 A schematic diagram of the assembled central sealing section;

[0029] Figure 4 This is a schematic diagram illustrating the fabrication of the sealing portion according to another embodiment of this application.

Detailed Implementation Methods

[0030] To facilitate understanding of this application, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" or "attached to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected to" another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "upper," "lower," "left," "right," "inner," "outer," and similar expressions used in this specification are for illustrative purposes only.

[0031] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0032] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0033] In the embodiments of this application, "installation" includes fixing or restricting a component or device to a specific position or place by means of welding, screwing, snapping, bonding, etc. The component or device may remain stationary in the specific position or place or may move within a limited range. After the component or device is fixed or restricted to the specific position or place, it may or may not be disassembled. This application does not impose any restrictions.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0035] One embodiment of this application provides an aerosol-generating article 100, such as... Figure 1As shown, the aerosol generating product 100 includes a shell 10, and a matrix section 20, a cooling section 30, and a filtration section 40 sequentially disposed within the shell 10 along its length. The matrix section 20 contains an aerosol generating matrix section 21 that can volatilize upon heating to generate aerosols. The cooling section 30 is filled with a cooling substance 31. When high-temperature aerosols escape from the aerosol generating matrix section 21 and enter the cooling section 30, the cooling substance 31 cools the high-temperature aerosols. The filtration section 40 is filled with a solid matrix 41 for filtering aerosols. The cooled aerosols further enter the filtration section 40 for filtration, and the user can inhale the aerosols by suctioning from the filtration section 40.

[0036] In practical use, the aerosol generating product 100 is inserted into the receiving chamber of the aerosol generating device that is used in conjunction with the aerosol generating product 100. Then, the aerosol generating device is started, and the aerosol generating device begins to heat the aerosol generating product 100. The aerosol generating matrix section 21 is heated and volatilizes to generate aerosol, which then flows along the airflow channel inside the aerosol generating product 100 to the filter section 40. The user can then draw it in through the filter section 40.

[0037] Furthermore, the aerosol generation matrix segment 21 is a continuous, monolithic columnar structure. In some embodiments, the continuous, monolithic aerosol generation matrix segment 21 can be prepared by the following method:

[0038] First, different material components are blended into a thick slurry. In some embodiments, the aerosol generating matrix can be a composition of plant powder, fiber, adhesive, smoke generator, fragrance and water.

[0039] The block slurry was prepared by microwave drying under vacuum conditions, and then the block slurry was crushed into granular slurry and die-cast into columnar slurry in a mold.

[0040] After demolding, the aerosol generation matrix segment 21 can be prepared by drying and shaping in a limiting fixture.

[0041] In some embodiments, the aerosol generation matrix segment 21 has abundant micropores in both the axial and radial directions, through which the volatilized aerosols can be transported. The cross-sectional area of ​​a single micropore is 3 nm. 2 ~2000um 2 The hydraulic diameter is 1nm to 25um, and the microporous structure is mainly formed by the natural expansion of the slurry volume after demolding and drying and shaping in the limiting fixture.

[0042] In some embodiments, the material of the housing 10 may be one or a combination of several of the following: cellulose paper, metal foil, metal foil composite cellulose paper, and polyethylene composite cellulose paper.

[0043] In some embodiments, the aerosol generating matrix segment 21 includes one or more of the following: vanilla leaves, tobacco leaves, homogenized tobacco, expanded tobacco, powder, granules, fragments, strips, or flakes; or, the aerosol generating matrix segment 21 may also contain additional tobacco or non-tobacco volatile aroma compounds to be released when the matrix is ​​heated.

[0044] In some embodiments, the material of the cooling substance 31 may be selected from one or a combination of several of cellulose paper, metal foil, metal foil composite cellulose paper, cellulose acetate, polypropylene fiber, PET fiber, silicone, polylactic acid, and PBAT.

[0045] In some embodiments, the aerosol generating matrix segment 21 has a length of 5 mm to 30 mm.

[0046] In some embodiments, the porosity of the aerosol generating matrix section 21 is 5% to 95% so that the aerosols generated by volatilization can escape smoothly from the aerosol generating matrix section 21.

[0047] In some embodiments, the porosity of the aerosol generation matrix segment 21 is 10% to 85%.

[0048] In some embodiments, the porosity of the aerosol generation matrix segment 21 is 15% to 70%.

[0049] In some embodiments, the solid matrix 41 for filtering aerosols filled in the filter section 40 may be any one of cellulose acetate, polypropylene, polylactic acid, or PET fiber.

[0050] In some embodiments, such as Figure 1 As shown, the cooling section 30 is equipped with an air inlet 32 ​​for external air to enter. The air inlet 32 ​​can be achieved by laser drilling. When the user uses the aerosol-generated product 100 for suction, external cold air enters the cooling section 30 through the air inlet 32 ​​and mixes with the high-temperature aerosol flowing into the cooling section 30, thereby reducing the temperature of the aerosol. At this time, a cooling substance 31 can be provided in the cooling section 30, or it can be omitted. If a cooling substance 31 is provided, the cooling effect on the aerosol can be improved.

[0051] Furthermore, the air inlet 32 ​​in the cooling section 30 can also adjust the suction resistance of the aerosol generating product 100, ensuring that the aerosol is transferred from the aerosol generating matrix section 21 to the filtration section 40. Additionally, it can accelerate the airflow speed inside the aerosol generating product 100, allowing the aerosol generating matrix section 21 to be fully heated and improving heating efficiency.

[0052] In some embodiments, such as Figure 1 , Figure 2 and Figure 3 As shown, the aerosol generating product 100 also includes a sealing portion 50, which includes a hollow tubular body 51. The tubular body 51 has a first open end 511 and a second open end 512 disposed opposite each other along the length direction of the aerosol generating product 100. The first open end 511 is adjacent to the aerosol generating matrix section 21, and the second open end 512 is away from the aerosol generating matrix section 21 and communicates with the outside. The sealing portion 50 also includes a stop member 52 disposed at the first open end 511 and connected to the tubular body 51. The stop member 52 closes the first open end 512, thereby sealing the bottom of the aerosol generating matrix section 21 to prevent the solid matrix remaining after heating from falling out of the aerosol generating product 100. Alternatively, during the process of removing the aerosol generating product 100 from the aerosol generating device after heating, the solid matrix remaining after heating may fall from the bottom of the aerosol generating product 100.

[0053] Furthermore, since the tubular body 51 is hollow, it defines a cavity 513 extending between the first open end 511 and the second open end 512. The second open end 512 is connected to the outside, thus effectively reducing obstruction to external air. External air can flow smoothly through the sealing part 50 and enter the aerosol generating matrix section 21, thereby fully extracting the released aerosol. The cavity 513 can also store a certain amount of external air. When a user inhales from the aerosol generating product 100, the air stored in the cavity 513 immediately enters the aerosol generating matrix section 21, quickly carrying the released aerosol for the user to inhale.

[0054] In some embodiments, the tubular body 51 and the stop 52 are connected to each other by an adhesive. The adhesive can be a food-grade adhesive such as water-based acrylic adhesive, high-temperature resistant silicone, modified epoxy resin, polyurethane hot melt adhesive, or ceramic-based high-temperature resistant adhesive. Furthermore, the adhesive has a certain degree of thermal stability so that the connection between the stop 52 and the tubular body 51 will not crack or peel off during the heating of the aerosol generating device for the aerosol generating product 10.

[0055] In some embodiments, such as Figure 2 As shown, a stop 52 can be glued to one end of the tubular body 51 to form a sealing part 50.

[0056] Alternatively, in some embodiments, such as Figure 3 As shown, stoppers 52 can also be glued to both ends of the tubular body 51. After the glue is in place, it can be cut from the middle to form two symmetrical sealing parts 50. This method can improve the production efficiency of the sealing parts 50.

[0057] In some embodiments, the adhesive has a thickness of 10µm to 200µm. If the thickness of the adhesive is too small, it will affect the bonding effect between the tubular body 51 and the stop 52, resulting in an insufficiently firm connection between the tubular body 51 and the stop 52. If the thickness of the adhesive is too large, it is easy for the adhesive to overflow.

[0058] In some embodiments, the stop member 52 has a thickness of 0.01 mm to 0.2 mm. If the thickness of the stop member 52 is too small, the stop member 52 is easily torn by the heating element when it pierces the stop member 52 and is inserted into the aerosol generating matrix section 21 for heating. If the thickness of the stop member 52 is too large, it is not convenient for the heating element of the aerosol generating device to pierce the stop member 52 and be inserted into the aerosol generating matrix section 21 for heating.

[0059] In some embodiments, the tubular body 51 has a wall thickness of 0.1 mm to 0.5 mm. If the wall thickness of the tubular body 51 is too small, the supporting strength of the tubular body 51 is insufficient, and the tubular body 51 is prone to deformation. If the thickness of the tubular body 51 is too large, it is not easy to cut during the preparation process.

[0060] In some embodiments, the tubular body 51 has an extension length of 2.0 mm to 15 mm along the length direction of the aerosol generating article 100.

[0061] In addition, in some embodiments, the tubular body 51 also has a circumferential length of 15 mm to 27 mm.

[0062] In some embodiments, the stop member 52 is provided with at least one vent (not shown) for external air to enter the aerosol generation matrix section 21. When the user draws in the aerosol generation article 100, external air enters the cavity 513 through the second opening end 512, and then enters the aerosol generation matrix section 21 through the vent. This air can carry the aerosol generated by the volatilization of the aerosol generation matrix section 21 into the cooling section 30 and the filtration section 40.

[0063] In some embodiments, the vent holes described above have a diameter of 0.7 μm. 2 ~0.2mm 2 The opening area; or, the vent hole has a hydraulic diameter of 0.001 mm to 0.5 mm. It should be noted that the hydraulic diameter is an equivalent diameter, defined based on the cross-sectional area and wetted perimeter of the pipe or channel. For circular pipes, the hydraulic diameter is equal to the actual diameter of the pipe. However, for non-circular pipes or channels, such as rectangular, elliptical, or annular pipes, the formula for calculating the hydraulic diameter is: D h= 4A / p, where A is the cross-sectional area of ​​the pipe or channel, and P is the wetted perimeter (i.e., the perimeter of the fluid in contact with the wall of the pipe or channel).

[0064] In some embodiments, the material of the stop member 52 may be one or a combination of cellulose paper, metal foil, metal foil composite cellulose paper, PEEK film, modified polypropylene film, modified polylactic acid film, PET composite cellulose paper, and cellulose acetate paper.

[0065] Alternatively, in some embodiments, the stop 52 may also be formed of a material with a porous or microporous structure, allowing external air to enter the aerosol generation matrix section 21 through these pores or microporous structures. In this case, in some embodiments, the stop 52 may have an air permeability of not less than 2000 CU.

[0066] In some embodiments, the tubular body 51 is formed by stacking multiple layers of paper; or, in some embodiments, the tubular body 51 is formed by winding multiple layers of paper strips.

[0067] In addition, in some embodiments, the thickness of the tubular body 51 is greater than the thickness of the shell 10; or, in some embodiments, the hardness of the tubular body 51 is greater than the hardness of the shell 10; or, in some embodiments, the density of the tubular body 51 is greater than the density of the shell 10; or, in some embodiments, the tensile strength of the tubular body 51 is greater than the tensile strength of the shell 10.

[0068] In some embodiments, such as Figure 1 As shown, the aerosol generating article 100 also includes a support section 60, which is disposed between the cooling section 40 and the aerosol generating matrix section 21, so that the aerosol generating matrix section 21 can be maintained between the sealing section 50 and the support section 60.

[0069] Specifically, in some embodiments, such as Figure 1 As shown, the support section 60 is filled with a solid material 61 formed by one or more of the following: cellulose paper, metal foil, metal foil composite cellulose paper, cellulose acetate, polypropylene fiber, PET fiber, silicone, polylactic acid, and PBAT. This allows the aerosol generating matrix section 21 to be held between the stop member 52 and the solid material 61, thereby keeping the aerosol generating matrix section 21 between the sealing part 50 and the support section 60.

[0070] Furthermore, when the heating element of the aerosol generating device is inserted into the aerosol generating matrix section 21 for heating, the solid material 61 in the support section 60 and the aerosol generating matrix section 21 resist each other, so the aerosol generating matrix section 21 can be prevented from shifting during the insertion of the heating element into the aerosol generating matrix section 21.

[0071] In some embodiments, such as Figure 1 As shown, the cooling section 30 is provided with a first hollow region 33 through which aerosols flow, and the support section 60 is provided with a second hollow region 62 through which aerosols flow. The cross-sectional area of ​​the first hollow region 33 is larger than that of the second hollow region 62, so that the aerosols can be cooled better in the cooling section 33.

[0072] In some embodiments, such as Figure 1 As shown, the sealing part 50 is disposed in the housing 10, thereby preventing the stop plate 52 from being separated from the tubular body 51 due to stress during transportation and use of the aerosol generating product 100, thus improving the stability of the sealing part 50.

[0073] In some embodiments, the aerosol generating article 100 may not require the cooling section 30 and the filtration section 40; only the matrix section 20 is needed. In this case, the aerosol generating device used with the aerosol generating article 100 will have a nozzle connected to the receiving chamber containing the aerosol generating article 100. In actual use, the user first opens the cover used to shield the receiving chamber, then places the aerosol generating article 100 into the receiving chamber, and then starts the aerosol generating device to heat the aerosol generating article 100. The aerosol generating matrix in the matrix section 20 evaporates upon heating, generating aerosols that are released into the receiving chamber. The user can then inhale the aerosol by sucking it through the nozzle of the aerosol generating device.

[0074] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them; under the concept of this application, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of this application as described above, which are not provided in detail for the sake of brevity; although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An aerosol-generating article, characterised in that, include: case; An aerosol generation matrix segment is disposed within the shell and configured to generate aerosols upon heating and volatilization. The sealing part includes a hollow tubular body, the tubular body having a first open end and a second open end that are disposed opposite to each other along the length direction of the aerosol generating product, the first open end being adjacent to the aerosol generating matrix section, and the second open end being away from the aerosol generating matrix section and communicating with the outside. The sealing part further includes a stop member disposed at the first opening end and connected to the tubular body, the stop member closing the first opening end.

2. The aerosol-generating product according to claim 1, characterized in that, The stop member is connected to the tubular body by an adhesive.

3. An aerosol-generating article according to claim 2, wherein, The adhesive has a thickness of 10µm to 200µm.

4. An aerosol-generating article according to claim 1, wherein, The tubular body has a wall thickness of 0.1 mm to 0.5 mm.

5. An aerosol-generating article according to claim 1, wherein, Along the length of the aerosol-generated article, the tubular body has an extension length of 2.0 mm to 15 mm.

6. An aerosol-generating article according to claim 1, wherein, The tubular body has a circumferential length of 15 mm to 27 mm.

7. An aerosol-generating article according to claim 1, wherein, The stopper is provided with a ventilation hole for external air to enter the aerosol generating substrate segment, the ventilation hole has an opening area of 0.7um 2 ~0.2mm 2 or the ventilation hole has a hydraulic diameter of 0.001mm~0.5mm.

8. The aerosol-generating article according to claim 1, wherein, The thickness of the tubular body is greater than the thickness of the shell; or, the hardness of the tubular body is greater than the hardness of the shell; or, the tensile strength of the tubular body is greater than the tensile strength of the shell.

9. The aerosol-generating article according to claim 1, wherein, The stop has a thickness of 0.01 mm to 0.2 mm.

10. An aerosol-generating article according to claim 1, wherein, The stop is made of a material with a void or microporous structure.

11. An aerosol-generating article according to claim 10, wherein, The stop component has an air permeability of not less than 2000 CU.

12. An aerosol-generating article according to claim 1, wherein, The aerosol generating article further includes a cooling section for cooling the aerosol, and a support section disposed between the cooling section and the aerosol generating matrix section, wherein the aerosol generating matrix section is held between the support section and the sealing part. The cooling section is provided with a first hollow area through which the aerosol flows, and the support section is provided with a second hollow area through which the aerosol flows. The cross-sectional area of ​​the first hollow area is greater than or equal to the cross-sectional area of ​​the second hollow area.

13. An aerosol-generating article according to claim 1, wherein, The sealing part is located inside the housing.

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