Front plug segment, aerosol-generating article, and method for manufacturing front plug segment

Abstract

The embodiment of the invention discloses a front plug section, an aerosol generating product and a manufacturing method of the front plug section, the front plug section is used for the aerosol generating product, on the plane perpendicular to the axial direction of the front plug section, the shape of the outer contour section of the front plug section is non-circular, the front plug section comprises a wrapping layer and a filling part, and the wrapping layer is arranged on the filling part. The filling part is formed by bending a layered filling piece for multiple times and is in a wrinkle shape, the filling part is arranged in the wrapping layer, and a channel extending from one end of the front plug section to the other end of the front plug section is formed in the wrapping layer. According to the front plug section, on one hand, the peripheral air channel is conveniently defined and formed between the front plug section and the outer packaging layer of the aerosol generating product, the peripheral air channel and the channel in the front plug section allow external airflow to flow to the medium section together, and therefore the suction resistance of the front plug section can be reduced; and on the other hand, the filling part in the wrinkle form has a better adsorption effect, so that the problem that the aerosol is condensed and flows back into the accommodating groove of the aerosol generating device is solved.

Description

Technical Field

[0001] This application relates to the field of smoke-generating products technology, and in particular to a pre-plug section, an aerosol-generating product, and a method for manufacturing the pre-plug section. Background Technology

[0002] Smoke-generating products include aerosol-generating products that form aerosols through ignition and those that form aerosols through heating without combustion. In a typical heated-without-combustion aerosol-generating product, it includes a medium section that volatilizes upon heating to generate an aerosol, and a pre-plug section located upstream of the medium section. The medium section is heated by an external heat source to a temperature sufficient to release the desired components and aroma. The medium section does not burn; instead, it carries an atomizing agent, which is released through high-temperature heating during use to form an aerosol. The pre-plug section typically serves to adsorb the condensed liquid within the aerosol-generating product, preventing liquid from flowing out and contaminating the heating device.

[0003] Among them, the suction resistance during the aerosol generation process is an important indicator of aerosol generation products. In related technologies, the suction resistance generated in the front plug section during aerosol suction is relatively large, which reduces the user experience. Summary of the Invention

[0004] In view of this, the embodiments of this application aim to provide a front plug section, an aerosol generating article, and a method for manufacturing the front plug section, with the goal of reducing the suction resistance generated by the front plug section to improve the user experience.

[0005] To achieve the above objectives, the technical solution of this application embodiment is implemented as follows:

[0006] In a first aspect, embodiments of this application provide a front plug section applied to aerosol generating articles. On a plane perpendicular to the axial direction of the front plug section, the shape of the outer contour cross section of the front plug section is non-circular. The front plug section includes a wrapping layer and a filling part. The filling part is formed by multiple bending of a layered filler and is in a pleated shape. The filling part is disposed within the wrapping layer and a channel extending from one end of the front plug section to the other end is constructed within the wrapping layer.

[0007] In one embodiment, the cross-sectional shape of the wrapping layer is corrugated, polygonal, racetrack-shaped, fan-shaped, or elliptical.

[0008] In one embodiment, the outer wall of the wrapping layer is recessed to form an air groove, which extends axially along the front plug section.

[0009] In one embodiment, the cross-sectional shape of the air groove is V-shaped, arc-shaped, or polygonal in a plane perpendicular to the axial direction of the front plug section.

[0010] In one embodiment, there are multiple air grooves, and each air groove is evenly distributed along the circumference of the front plug section.

[0011] In one embodiment, the air groove extends axially or spirally parallel to the front plug section.

[0012] In one embodiment, the material of the wrapping layer is corrugated paper, kraft paper, parchment paper, imitation parchment paper, yarn tube paper, or coated paper, and the front plug section is formed by gathering the filling part together through the wrapping layer.

[0013] In one embodiment, the maximum distance between two points on the outer periphery of the cross section of the front plug section on a plane perpendicular to the axial direction of the front plug section is d;

[0014] The number of fillers is one, and the width of the filler ranges from 2d to 60d; or,

[0015] The number of fillers is multiple, and the sum of the widths of each filler ranges from 2d to 60d.

[0016] In one embodiment, the filler is made of fiber paper, and the basis weight of the fiber paper is in the range of 20 g / m³. 2 -140g / m 2 .

[0017] In one embodiment, the filler includes a base layer and a hardening layer stacked together.

[0018] In one embodiment, the number of the base layer and the number of the hardening layer are both one layer; or, the number of the base layer is one layer, and the number of the hardening layers is two layers, with the two hardening layers respectively stacked on both sides of the base layer along the thickness direction.

[0019] In one embodiment, the material of the base layer includes at least one of broadleaf fiber, coniferous fiber, hemp fiber, and bamboo fiber.

[0020] In one embodiment, the hardening layer is formed by coating the surface of the base layer with a mixture of a hardening material and a solvent. The hardening material includes at least one of cellulose, polysaccharides, polylactic acid, butylene terephthalate, and polyethylene terephthalate.

[0021] In one embodiment, the filler has a fill rate in the wrapping layer ranging from 10% to 98%.

[0022] Secondly, embodiments of this application provide an aerosol generating article, the aerosol generating article having a distal lip end and a proximal lip end, comprising:

[0023] The medium section is used to generate aerosols;

[0024] The fore-plug section described in any of the above embodiments is disposed at one end of the medium section and located at the distal lip end of the aerosol generating article.

[0025] In one embodiment, the aerosol generating article further includes a basic structural section disposed at one end of the medium section away from the front plug section, and the basic structural section includes at least one of a support section, a filter section, and a cooling section.

[0026] In one embodiment, on a plane perpendicular to the axial direction of the aerosol-generating article, the cross-sectional area of ​​the front plug section is 0.4-0.95 of the cross-sectional area of ​​the medium section.

[0027] In one embodiment, the length of the fore-plug section is 1 / 12 to 1 / 3 of the length of the aerosol-generated article.

[0028] Thirdly, embodiments of this application provide a method for manufacturing a front plug section, comprising:

[0029] The filler is embossed to obtain a pleated filler portion;

[0030] The filling part and the wrapping layer are brought together to form a non-cylindrical front plug section.

[0031] In one embodiment, the step of bringing the filling portion and the wrapping layer together to form a non-cylindrical front plug section specifically includes:

[0032] The filling portion is gathered into a non-cylindrical structure, and the filling portion is wrapped with a wrapping layer to obtain a non-cylindrical front plug section.

[0033] In one embodiment, the step of bringing the filling portion and the wrapping layer together to form a non-cylindrical front plug section specifically includes:

[0034] A non-cylindrical wrapping layer is brought together with the filling part to form a non-cylindrical front plug section.

[0035] In one embodiment, before embossing the filler to obtain a wrinkled filler portion, the manufacturing method includes:

[0036] The hardening material and solvent are mixed and then coated onto the surface of the base layer to form the filler.

[0037] In one embodiment, before coating the hardening material and solvent onto the surface of a substrate layer to form the filler, the manufacturing method includes:

[0038] The hardening material is obtained by mixing one or more of the following: cellulose, polysaccharides, polylactic acid, butylene terephthalate, and polyethylene terephthalate.

[0039] The solvent is formed by mixing one or more of water, ethanol, and glycerol.

[0040] In one embodiment, after uniformly mixing the hardening material and solvent and coating it onto the surface of a substrate to form the filler, the manufacturing method includes: heating and drying the filler; or,

[0041] After the filling part and the wrapping layer are brought together to form a non-cylindrical front plug section, the manufacturing method includes: heating and drying the front plug section.

[0042] In one embodiment, the drying temperature of the heat drying process is between 80°C and 140°C.

[0043] In one embodiment, after the filling portion and the wrapping layer are brought together to form a non-cylindrical forepump section, the manufacturing method includes:

[0044] The fore-end section is cut into segments.

[0045] In this embodiment, the front plug section has a non-circular outer profile cross-section on a plane perpendicular to its axial direction, while the outer packaging layer of the aerosol-generating product is generally annular. Using the front plug section in the aerosol-generating product helps to define a peripheral airway between the front plug section and the outer packaging layer. Furthermore, the front plug section consists of a wrapping layer and a filling portion. The filling portion is formed by multiple bends of a layered filler, resulting in a pleated shape. The filling portion is disposed within the wrapping layer, creating a channel extending from one end of the front plug section to the other. External airflow can flow to the medium section either through the peripheral airway or through the channel, thereby reducing the suction resistance generated by the front plug section on aerosol extraction and improving the user experience. In other words, when the front plug section of this embodiment is used in aerosol-generating products, it reduces the probability of the medium section detaching from the outer packaging layer, while also minimizing suction resistance on aerosol extraction.

[0046] Furthermore, the peripheral airway is formed on the periphery of the front plug section. After the external airflow flows through the peripheral airway to the medium section, it can gradually flow from the periphery to the interior of the medium section. This process can increase the utilization rate of the periphery of the medium section, thereby improving the suction performance of the aerosol generated product. In addition, the pleated filling part has a good adsorption effect, which can effectively prevent the aerosol from condensing and flowing downward and remaining in the container of the aerosol generating device, thus avoiding the problem of internal contamination of the container and difficulty in cleaning. It can also prevent the problem of cross-contamination of flavors when sucking different flavored aerosol generated products. Attached Figure Description

[0047] Figure 1 This is a schematic diagram of the structure of an aerosol-generated article according to an embodiment of this application;

[0048] Figure 2 This is a schematic cross-sectional view of an aerosol-generated article according to an embodiment of this application.

[0049] Figure 3 The aerosol-generating article of the first embodiment of this application is in accordance with Figure 2 A schematic diagram of the cross-sectional structure of section AA in the middle;

[0050] Figure 4 The aerosol-generating article of the second embodiment of this application is in accordance with Figure 2 A schematic diagram of the cross-sectional structure of section AA in the middle;

[0051] Figure 5 This is a schematic diagram of the front plug section according to the first embodiment of this application;

[0052] Figure 6 This is a schematic diagram of the front plug section according to the second embodiment of this application;

[0053] Figure 7 for Figure 6 A top view of the front piston section shown;

[0054] Figure 8 This is a schematic diagram of the front plug section according to the third embodiment of this application;

[0055] Figure 9 This is a schematic diagram of the front plug section according to the fourth embodiment of this application;

[0056] Figure 10 for Figure 9 The top view of the front piston section shown;

[0057] Figure 11 This is a schematic diagram of the front plug section according to the fifth embodiment of this application;

[0058] Figure 12 This is a schematic diagram of the front plug section according to the sixth embodiment of this application;

[0059] Figure 13 This is a schematic diagram of the front plug section according to the seventh embodiment of this application;

[0060] Figure 14 This is a schematic diagram of the front plug section according to the eighth embodiment of this application;

[0061] Figure 15 for Figure 8 The top view of the front piston section shown;

[0062] Figure 16 This is a schematic diagram of the front plug section according to the ninth embodiment of this application;

[0063] Figure 17 for Figure 16 A top view of the front piston section shown;

[0064] Figure 18 This is a schematic diagram of the front plug section according to the tenth embodiment of this application;

[0065] Figure 19 This is a schematic diagram of the front plug section according to the eleventh embodiment of this application;

[0066] Figure 20 This is a schematic diagram of the front plug section according to the twelfth embodiment of this application;

[0067] Figure 21 This is a schematic diagram of the structure of a filler according to an embodiment of this application;

[0068] Figure 22 This is a schematic diagram of the structure of the filler according to another embodiment of this application;

[0069] Figure 23 This is the production line of the first embodiment of this application;

[0070] Figure 24 This is the production line of the second embodiment of this application;

[0071] Figure 25 This is the production line of the third embodiment of this application;

[0072] Figure 26 This is a schematic flowchart illustrating a method for manufacturing a fore-end section according to an embodiment of this application.

[0073] Explanation of reference numerals in the attached figures

[0074] 100. Aerosol-generating product; 100a. Distal lip end; 100b. Proximal lip end; 100c. Peripheral airway; 10. Fore-plug section; 10a. Channel; 11. Encapsulation layer; 11a. Air groove; 12. Filler; 121. Base layer; 122. Hardening layer; 20. Medium section; 30. Basic structure section; 31. Cooling section; 32. Filter section; 33. Support section; 40. Outer packaging layer;

[0075] 1. Base layer paper; 2. Wrapping layer paper; 3. Embossing device; 4. Gathering device; 5. Slitting device; 6. Drying device; 7. Spraying device. Detailed Implementation

[0076] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of this application, and are therefore only examples, and should not be used to limit the scope of protection of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0077] In the description of the embodiments of this application, technical terms such as "first," "second," and "third" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0078] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0079] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects are in an "or" relationship.

[0080] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" 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. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0081] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical term "contact" should be interpreted broadly, and can be direct contact, contact through an intermediate medium layer, contact between two contacting parties with substantially no interaction force, or contact between two contacting parties with interaction force.

[0082] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0083] Please see Figures 1 to 4 In a first aspect, embodiments of this application provide an aerosol generating article 100 having a distal lip end 100a and a proximal lip end 100b. The aerosol generating article 100 includes a medium section 20 and a front plug section 10 according to any embodiment of this application.

[0084] It should be noted that, generally speaking, users can use the aerosol generating product 100 by holding it in their mouth. The proximal end 100b refers to the end of the aerosol generating product 100 that is closer to the user when using it, while the distal end 100a refers to the end of the aerosol generating product 100 that is farther away from the user when using it.

[0085] In this embodiment, the medium segment 20 is generally cylindrical. The cylindrical shape can be a cylinder (i.e., with a circular cross-section), a prism (i.e., with a polygonal cross-section), an elliptical cylinder (i.e., with an elliptical cross-section), etc., and is not limited thereto.

[0086] The aerosol generating article 100 is used in an aerosol generating apparatus having a receiving chamber, and the aerosol generating article 100 can be inserted into the receiving chamber and heated by the heating element of the aerosol generating apparatus.

[0087] The dielectric section 20 is used to generate aerosols. The heating element is used to convert electrical energy into heat energy, which acts on the dielectric section 20, and the dielectric section 20 can generate aerosols for user use after being heated.

[0088] The heating element can heat the medium section 20 in any way. For example, in some embodiments, in a peripherally heated aerosol generating apparatus, the heating element is arranged around the outer periphery of the aerosol generating article 100 and heats the aerosol generating article 100.

[0089] In other embodiments, the centrally heated aerosol generating apparatus has a heating element inserted inside the aerosol generating article 100 and heating the aerosol generating article 100.

[0090] Please see Figures 1 to 4 The aerosol generating product 100 generally also includes an outer packaging layer 40, which surrounds the outer periphery of the front plug section 10 and the medium section 20.

[0091] The outer packaging layer 40 has a certain degree of hardness, which can provide some protection for the medium section 20, reduce the surface area of ​​the medium section 20 directly exposed to the outside world, thereby reducing the probability of the medium section 20 becoming damp and deteriorating due to contact with air. At the same time, it also reduces the probability of the medium section 20 coming into contact with other components in the aerosol generating device and causing pollution.

[0092] The specific material of the outer packaging layer 40 is not limited, such as one or more combinations of materials such as fiber paper, metal foil, metal foil composite fiber paper, PE (Polyethylene), polyethylene composite fiber paper, PBAT (Poly(butylene adipate-co-terephthalate)).

[0093] The front plug section 10 is disposed at one end of the medium section 20 and located at the distal lip end 100a of the aerosol generating product 100. On the one hand, during use, the front plug section 10 can effectively reduce the probability of the medium section 20 falling out of the outer packaging layer 40; on the other hand, it can also effectively prevent the aerosol from condensing and flowing downward and remaining in the containment chamber of the aerosol generating device, thereby causing contamination inside the containment chamber and making it difficult to clean, and also preventing the problem of cross-contamination of flavors when sucking in different flavored aerosol generating products 100.

[0094] The shape of the cross-section of the outer packaging layer 40 is not limited in a plane perpendicular to the axis of the aerosol-generating article 100. Generally, please refer to [link to relevant documentation]. Figure 3 and Figure 4 The outer packaging layer 40 has a circular cross-section. Circular means that the outer packaging layer 40 has a wall thickness, therefore the cross-sectional shape of its inner and outer circumferential walls is circular. It can be understood that the outer packaging layer 40 is typically made of paper material with a relatively small thickness, for example, less than 1 mm; therefore, its cross-sectional shape can also be considered circular. In other words, the outer wall surface of the outer packaging layer 40 is cylindrical. With this structure, the outer packaging layer 40 and the aerosol generating product 100 are generally cylindrical in shape. This cylindrical aerosol generating product 100 can be inserted into the receiving chamber at various angles along its circumference, thus facilitating user operation.

[0095] Please see Figures 1 to 20 Secondly, embodiments of this application provide a front plug section applied to aerosol generating article 100.

[0096] On a plane perpendicular to the axial direction of the front plug section 10, the shape of the outer contour cross section of the front plug section 10 is non-circular. The front plug section 10 includes a wrapping layer 11 and a filling part. The filling part is formed by multiple bending of a layered filling member 12 and has a pleated shape. The filling part is disposed in the wrapping layer 11 and a channel 10a extending from one end of the front plug section 10 to the other end is constructed in the wrapping layer 11.

[0097] The outer contour section of the front plug section 10 is the outer contour section of the wrapping layer 11.

[0098] As described above, in a plane perpendicular to the axial direction of the front plug section 10, the outer packaging layer 40 is generally annular, while the outer contour cross-section of the front plug section 10 is non-circular. Therefore, after the front plug section 10 and the outer packaging layer 40 are assembled, the inner wall of the outer packaging layer 40 and the outer wall of the wrapping layer 11 can define and form a peripheral air passage 100c (e.g., Figure 3 and Figure 4 (As shown).

[0099] The external airflow can flow to the medium section 20 through the peripheral air passage 100c, thereby reducing the suction resistance of the front plug section 10 on the aerosol, which is beneficial to improving the user experience.

[0100] In addition, the peripheral airway 100c is formed on the periphery of the front plug section 10. After the external airflow flows through the peripheral airway 100c to the medium section 20, it can gradually flow from the periphery of the medium section 20 to the interior. This process can increase the utilization rate of the periphery of the medium section 20, thereby improving the suction performance of the aerosol generating product 100.

[0101] Please see Figures 3 to 20 The pleated filling section, the channel 10a extends along the axial direction of the front plug section 10. It can be understood that the cross-section of the channel 10a is bent in a plane perpendicular to the axial direction of the front plug section 10.

[0102] External airflow can flow through channel 10a to medium section 20, thereby further reducing the suction resistance of the front plug section 10 on the aerosol extraction. At the same time, since the filling part has a pleated shape, it has a better adsorption effect, which helps to reduce the probability that the aerosol will condense and flow downward and remain in the containment chamber of the aerosol generation device.

[0103] In related technologies, setting a front plug section can effectively reduce the probability of the medium section falling out of the outer packaging layer. However, the front plug section will generate significant suction resistance to the aerosol, reducing the user's suction experience. Therefore, it is desirable to develop an aerosol generating product that can prevent the medium section from falling out and effectively reduce the suction resistance generated by the front plug section on the aerosol.

[0104] In this embodiment, the front plug section 10 has a non-circular outer contour cross-section on a plane perpendicular to its axial direction, while the outer packaging layer 40 of the aerosol generating article 100 is generally annular. When the front plug section 10 is used in the aerosol generating article 100, it helps to define and form a peripheral airway 100c between the front plug section 10 and the outer packaging layer 40. Furthermore, the front plug section 10 is composed of a wrapping layer 11 and a filling portion. The filling portion is formed by multiple bending of a layered filling member 12, resulting in a pleated shape. The filling portion is disposed within the wrapping layer 11 to construct a channel 10a extending from one end of the front plug section 10 to the other. External airflow can flow to the medium section 20 through either the peripheral airway 100c or the channel 10a, thereby reducing the suction resistance generated by the front plug section 10 on the aerosol extraction and improving the user experience. In other words, after the front plug section 10 of this application embodiment is used to generate the aerosol product 100, it can reduce the probability of the medium section 20 falling off from the outer packaging layer 40. At the same time, the front plug section 10 will not cause too much suction resistance to the aerosol.

[0105] Furthermore, the peripheral airway 100c is formed on the periphery of the front plug section 10. After the external airflow flows through the peripheral airway 100c to the medium section 20, it can gradually flow from the periphery of the medium section 20 to the interior. This process can increase the utilization rate of the periphery of the medium section 20, thereby improving the suction performance of the aerosol generating product 100. In addition, the pleated filling part has a good adsorption effect, which can effectively prevent the aerosol from condensing and flowing downward and remaining in the container of the aerosol generating device, thus causing the container to be contaminated and difficult to clean. Moreover, the suction of different flavored aerosol generating products 100 may cause cross-contamination of flavors.

[0106] The molding method of the media segment 20 is not limited. In some embodiments, the media segment 20 is a one-piece structure, that is, the media segment 20 is integrally molded. For example, the media segment 20 is a granular composite, also known as a powder composite, which is a reconstituted tobacco medium, such as a reconstituted tobacco medium containing smoke-generating agents, tobacco, and other components. The media segment 20 is an integral structure, for example, it can be molded into an integral structure by extrusion, injection molding, or die casting processes. Among them, extrusion molding refers to a processing method in which a raw material mixture is added to an extruder, and the material is pushed forward by the screw through the action between the extruder barrel and the screw, and continuously passed through the die at the extruder outlet to make products or semi-finished products of various cross sections. The media structure formed by extrusion molding is strip-shaped. In this way, the media segment 20 remains an integral medium after being heated and absorbed or after the heating stops, and it is not easy to disintegrate and fall off. This solves the problems of thin sheet, filament, or loose granular media segments 20 in the prior art, such as thin sheet loosening, filament component and granular component falling off, difficulty in cleaning, and uneven composition.

[0107] Of course, the medium segment 20 may not be a single-piece structure. For example, it can be disordered tobacco shreds (formed by directly cutting plant leaves into shreds), ordered sheet-like structures (formed by papermaking of plant leaf materials and other materials), or granular structures (formed by granulation of plant leaf materials and other materials).

[0108] The specific composition of the medium segment 20 is not limited here. For example, in some embodiments, the medium segment 20 may include plant ingredients, auxiliary ingredients, smoke-generating agents, adhesive ingredients, and fragrance ingredients, etc.

[0109] Plant-based ingredients are used to generate aerosols upon heating. Additive ingredients provide skeletal support for the plant-based ingredients. Smoke-generating ingredients produce smoke upon heating. Binder ingredients bind the various raw material components together. Flavoring ingredients provide characteristic aromas. Thus, the plant-based and smoke-generating ingredients ensure sufficient aerosol generation, while the flavoring ingredients enhance aroma release during inhalation, improving the user experience. Additive ingredients not only improve the flowability of the mixture but also create a porous structure in the medium section 20, facilitating aerosol extraction and flow. The binder ingredients ensure that the plant-based and additive ingredients form a stable mixture, preventing a loose structure.

[0110] For example, the plant-based ingredients can be one or more of the following: raw tobacco leaves, tobacco fragments, tobacco stems, tobacco dust, and aromatic plants, which are powdered after being crushed. The plant-based ingredients are the core source of the aroma, and the endogenous substances within them can provide users with a sense of physiological satisfaction. Endogenous substances, such as alkaloids, enter the bloodstream and promote the pituitary gland to produce dopamine, thereby achieving physiological satisfaction.

[0111] For example, the auxiliary components can be one or more combinations of inorganic fillers, lubricants, and emulsifiers. The inorganic fillers include one or more combinations of heavy calcium carbonate, light calcium carbonate, zeolite, attapulgite, talc, and diatomaceous earth. Inorganic fillers provide skeletal support for the plant components and also have micropores, which can increase the porosity of the medium section 20, thereby increasing the aerosol release rate. Lubricants include one or more combinations of candelilla wax, carnauba wax, shellac, sunflower wax, rice bran, beeswax, stearic acid, and palmitic acid. Lubricants can increase the flowability of the plant component powder, reduce the friction between the plant component powders, make the overall density of the plant component powder distribution more uniform, and also reduce the pressure required for extrusion molding, reducing die wear. Emulsifiers include one or more combinations of polyglycerol fatty acid esters, Tween-80, and polyvinyl alcohol. Emulsifiers can, to a certain extent, slow down the loss of aroma substances during storage, increase the stability of aroma substances, and improve the sensory quality of the product.

[0112] For example, the smoke-generating agent may include one or more combinations of: monohydric alcohols (such as menthol); polyhydric alcohols (such as propylene glycol, glycerol, triethylene glycol, 1,3-butanediol, and tetraethylene glycol); esters of polyhydric alcohols (such as triacetin, triethyl citrate, mixtures of diacetins, triethyl citrate, methylbenzyl benzoate, and triglyceride); monocarboxylic acids; dicarboxylic acids; polycarboxylic acids (such as lauric acid and myristic acid) or aliphatic esters of polycarboxylic acids (such as dimethyl dodecanoate, dimethyl tetradecanoate, erythritol, 1,3-butanediol, tetraethylene glycol, triethyl citrate, propylene carbonate, ethyl laurate, triacetin, mesoerythritol, mixtures of diacetins, diethyl octanoate, triethyl citrate, methylbenzyl benzoate, phenylacetic acid, ethyl vanillate, triglyceride, and lauryl acetate).

[0113] For example, the adhesive component achieves close contact with the component raw materials through wetting at the interface, generating intermolecular attraction, thereby binding the component raw materials, such as powders, liquids, etc. The adhesive component can be one or more combinations of natural plant extracts, non-ionic modified viscous polysaccharides, including tamarind polysaccharides, guar gum, and modified cellulose (such as carboxymethyl cellulose). The adhesive is used to bind particles together, preventing them from easily falling apart, and also improves the water resistance of the media segment 20, and is harmless to the human body.

[0114] For example, flavoring ingredients are used to provide characteristic aromas, such as hay, roasted sweetness, or solid or liquid substances of nicotine. Flavoring ingredients may include one or more combinations of tobacco or other plants, aromatic plant extracts, extracts, essential oils, and absolutes; flavoring ingredients may include one or more combinations of monomeric aroma substances, such as megastigmatrienone, neophytadiene, geraniol, nerol, etc.

[0115] In one embodiment, the cross-sectional shape of the wrapping layer 11 is corrugated, polygonal, racetrack-shaped, fan-shaped, or elliptical.

[0116] The plane containing the cross-section of the wrapping layer 11 is perpendicular to the axial direction of the front plug section 10.

[0117] A polygon can have any number of sides and can be a regular polygon or a polygon with sides that are not all equal in length, etc. For example, please refer to [link to example]. Figure 5 and Figure 11 It has the shape of a regular heptadecagon; for example, please refer to Figure 6 and Figure 12 It is in the shape of a regular hexagon; for example, please refer to Figure 8 and Figure 13 It is a regular pentagon.

[0118] The term "track shape" refers to a shape similar to an athletic track, consisting of two semicircles of the same radius and two parallel straight edges connected alternately.

[0119] like Figure 9 and Figure 10 , Figure 14 and Figure 15 As shown, the cross-section of the wrapping layer 11 is elliptical.

[0120] like Figure 16 and Figure 17 As shown, the cross-section of the wrapping layer 11 is corrugated.

[0121] In other words, the cross-section of the wrapping layer 11 can be any shape other than circular, thus facilitating the formation of the peripheral airway 100c between the front plug section 10 and the outer packaging layer 40.

[0122] Please see Figures 18 to 20 In one embodiment, the outer wall of the wrapping layer 11 is recessed to form an air groove 11a, which extends axially along the front plug section 10.

[0123] It should be noted that the air groove 11a is formed on the wrapping layer 11. The wrapping layer 11 has a certain hardness. After the front plug section 10 is formed, the shape of the wrapping layer 11 is not easily changed, thus enabling the air groove 11a to be shaped.

[0124] The space between the wall of the air trough 11a and the outer packaging layer 40 defines an outer peripheral air passage 100c.

[0125] In this embodiment, the outer sidewall of the front plug section 10, except for the groove wall of the air groove 11a, can be connected to the inner sidewall of the outer packaging layer 40. In this way, the space of the air groove 11a can basically be used as the space of the peripheral air passage 100c.

[0126] It is understood that, in this embodiment, since the sidewall of the front plug section 10 is recessed to form an air groove 11a, as long as the front plug section 10 and the outer packaging layer 40 are assembled, the inner sidewall of the outer packaging layer 40 does not encroach on all the space in the air groove 11a. The inner sidewall of the outer packaging layer 40 and the groove wall of the air groove 11a will define and form an outer peripheral air passage 100c. Therefore, the front plug section 10 of this embodiment can be applied to the annular outer packaging layer 40.

[0127] There is no limit to the number of air tanks 11a. There can be one or more. "Multiple" refers to any number of two or more.

[0128] When there are multiple air grooves 11a, the multiple air grooves 11a are distributed at intervals along the circumference of the front plug section 10. Of course, they can be evenly distributed or have irregular intervals.

[0129] Because the outer peripheral wall of the front plug section 10 is recessed to form an air groove 11a, it is convenient for the aerosol generating product 100 to form an outer peripheral air channel 100c, which reduces the requirements for the outer packaging layer 40. Thus, the outer packaging layer 40 only needs to meet the size of the medium section 20, the structure of the outer packaging layer 40 is more uniform, the production cost of the aerosol generating product 100 is reduced, and the appearance of the aerosol generating product 100 is more beautiful.

[0130] In one specific embodiment, there are multiple air grooves 11a, and each air groove 11a is evenly distributed along the circumference of the front plug section 10. In this way, the airflow can flow relatively evenly to the medium section 20.

[0131] It should be noted that the shape of the air groove 11a is not limited. For example, in some embodiments, the cross-sectional shape of the air groove 11a in a plane perpendicular to the axial direction of the front plug section 10 is V-shaped, arc-shaped, or polygonal.

[0132] Specifically, such as Figure 18 As shown, the cross-sectional shape of the air groove 11a is V-shaped. The V-shape means that on the plane perpendicular to the axial direction of the front plug section 10, the groove wall of the air groove 11a is composed of two roughly straight sides.

[0133] The arc shape means that on a plane perpendicular to the axial direction of the front plug section 10, the wall of the air groove 11a is formed by a roughly arc-shaped edge.

[0134] Polygons can be rectangles, trapezoids, etc.

[0135] In this embodiment, the shape of the air groove 11a is relatively more regular, which facilitates the opening of the air groove 11a.

[0136] Of course, the cross-section of the air groove 11a is not limited to the above-mentioned shapes. The edge constituting the air groove 11a can also be formed by a combination of various lines. Thus, an air groove 11a with an irregular cross-sectional shape is formed on a plane perpendicular to the axial direction of the front plug section 10.

[0137] In some embodiments, the air groove 11a extends axially parallel to or spirally along the front plug section 10.

[0138] Specifically, such as Figure 18 and Figure 19 As shown, the air groove 11a extends along the axial direction parallel to the front plug section 10. In this embodiment, the extension direction of the air groove 11a is parallel to the axial direction of the front plug section 10, and the peripheral air passage 100c formed between the front plug section 10 and the outer packaging layer 40 also extends along the axial direction parallel to the front plug section 10. The airflow flows in a roughly straight line within the peripheral air passage 100c, thus the peripheral air passage 100c has low suction resistance.

[0139] like Figure 20As shown, the gas groove 11a extends spirally along the axial direction of the front plug section 10. Spiral extension means that the extension direction of the gas groove 11a can be decomposed into a straight direction along the axial direction of the front plug section 10 and a circumferential direction along the front plug section 10. Thus, after the gas groove 11a and the outer packaging layer 40 define and form an outer peripheral gas channel 100c, given a fixed axial length of the front plug section 10, the length of the outer peripheral gas channel 100c can be appropriately increased. In the event of aerosol condensation and backflow, and after the backflow into the outer peripheral gas channel 100c, the risk of aerosol condensate flowing back into the containment chamber of the aerosol generation device can be further reduced.

[0140] Meanwhile, the spirally extended peripheral air passage 100c allows the airflow to flow through the peripheral air passage 100c to the medium section 20, where gas turbulence can be formed inside the medium section 20, thereby improving the extraction efficiency of aerosols.

[0141] In one embodiment, the material of the wrapping layer 11 is corrugated paper, kraft paper, parchment paper, imitation parchment paper, yarn tube paper, or coated paper, and the front plug section 10 is formed by gathering the filling part together through the wrapping layer 11.

[0142] On the one hand, the wrapping layer 11 of this material has a certain toughness, which allows it to be wound around the filling part to obtain a non-circular front plug section 10; on the other hand, the wrapping layer 11 of this material also has a certain strength, which can reduce the probability of deformation of the front plug section 10, thus improving the yield of the front plug section 10.

[0143] In addition, the paper wrapping layer 11 will not melt or shrink when heated, and the front plug section 10 is not prone to deformation or collapse, thereby reducing the probability of blockage of the channel 10a inside the front plug section 10 and thus improving the problem of changes in suction resistance during the suction process.

[0144] The material of filler 12 is not limited. For example, it can be various types of paper.

[0145] In related technologies, the filler is made of polymer materials such as PLA (Polylactic acid), PET (Polyethylene glycol terephthalate), and CA (Cellulose acetate). During use, the front plug section is prone to melting, shrinkage, and collapse when in contact with the heating element. This causes blockage of the channels inside the front plug section, hindering the airflow from reaching the medium section to extract aerosols. As a result, the suction resistance of the aerosol-generated product increases significantly during suction, and chemical impurities are generated, affecting the user experience.

[0146] The paper-based filler 12 can operate normally at temperatures below 420°C, while the heating temperature of a typical aerosol generating device is 200–320°C. Therefore, the filler 12 is less prone to melting or condensation when in contact with the heating element, reducing the likelihood of blockage in the channel 10a inside the front plug section 10. This avoids a significant increase in suction resistance during the suction process. Furthermore, the paper does not produce a chemical odor when heated. In addition, the paper-based filler 12 has good adsorption properties, and folding it into a pleated shape further enhances its adsorption effect, thereby improving its adsorption performance for aerosols during backflow / reverse flow.

[0147] In one embodiment, the filler 12 is made of fiber paper.

[0148] The filler 12, made of fiber paper, gives the front plug section 10 better filling strength, which can improve the production qualification rate of the product during subsequent processing. At the same time, it can also improve the connection strength between the front plug section 10 and the medium section 20, and improve the problems of bending and breakage of the aerosol generation product 100 caused by insufficient connection strength during use.

[0149] In addition, during the heating process, the fibrous odor produced by the fiber paper can be confined inside the fiber paper, thereby improving the user experience.

[0150] The basis weight range of fiber paper is 20 g / m². 2 -140g / m 2 For example, it could be 20g / m³. 2 30g / m 2 40g / m 2 50g / m 2 60g / m 2 70g / m 2 80g / m 2 90g / m 2 100g / m 2 110g / m 2 120g / m 2 130g / m 2 140g / m 2 etc.

[0151] It should be noted that when the basis weight of the fiber paper is low, its processing performance is low, resulting in a relatively low yield of the front stopper section 10. When the basis weight is high, the paper impurities generated by the filler 12 are heavier during subsequent use, affecting the user's experience.

[0152] In this embodiment, the basis weight of the fiber paper is controlled at 20 g / m². 2 -140g / m 2 Within this range, it is possible to minimize the generation of paper impurities while ensuring the processing performance of the fiber paper. In other words, it can guarantee the yield of the pre-stop section 10, while also taking into account the user experience.

[0153] In one embodiment, please refer to Figure 21 and Figure 22 The filler 12 includes a base layer 121 and a hardening layer 122 stacked together.

[0154] In other words, the filler 12 is a composite material. It uses paper as the base layer 121, and after the hardening layer 122 is applied to the base layer 121 and dried, it becomes high-strength fiber paper.

[0155] The base layer 121 is made of paper material, which makes it less prone to melting and shrinkage. A hardening layer 122 is provided on the base layer 121, which can improve the structural strength of the filler 12 and thus improve the production qualification rate of the product in subsequent processing.

[0156] In addition, the filler 12 with this structure can improve the connection strength between the front plug section 10 and the medium section 20, and improve the problems of bending and breaking of the aerosol generated product 100 caused by insufficient connection strength during use. Moreover, during heating and use, the fiber impurities generated by the base layer 121 can be blocked by the hardened layer 122, and the fiber impurities can be confined inside the filler 12, thereby improving the user experience.

[0157] In one embodiment, the substrate 121 is made of at least one of broadleaf fiber, softleaf fiber, hemp fiber, and bamboo fiber.

[0158] Broadleaf fiber, softleaf fiber, hemp fiber, and bamboo fiber are all natural or extracted products, with relatively abundant raw materials, which facilitates the large-scale production of the base layer 121. At the same time, the base layer 121 made of such materials is biodegradable after use, making it more environmentally friendly.

[0159] In one embodiment, the hardening layer 122 is formed by coating a mixture of a hardening material and a solvent onto the surface of the base layer 121. The hardening material includes at least one of cellulose, polysaccharides, polylactic acid, butylene terephthalate, and polyethylene terephthalate.

[0160] Specifically, one or more of the following materials are used as base materials: cellulose, polysaccharides, polylactic acid, butylene terephthalate, and polyethylene terephthalate. They are then mixed uniformly in appropriate proportions according to the target requirements to obtain a hardened material.

[0161] The solvent is a mixture of one or more of the following: water, ethanol, glycerol, etc.

[0162] A homogeneous mixture is obtained by mixing the hardening material with a solvent. It is understood that the hardening material and solvent can be mixed in one or more batches.

[0163] After the hardened layer 122 is coated on the surface of the base layer 121, the filler 12 can be obtained by heating, air drying and other processes, thereby improving the structural strength of the filler 12. The hardened layer 122 can also block the fiber impurities generated by the base layer 121, so as to confine the fiber impurities inside the filler 12, thereby improving the user experience.

[0164] In one embodiment, please refer to Figure 21 and Figure 22 The number of base layer 121 and hardening layer 122 is one; or, the number of base layer 121 is one, the number of hardening layer 122 is two, and the two hardening layers 122 are respectively stacked on both sides of the base layer 121 along the thickness direction.

[0165] It should be noted that whether the hardened layer 122 is coated on one side of the base layer 121 along its thickness direction or on both sides can be determined based on the required strength of the filler 12. That is, coating the base layer 121 with the hardened layer 122 on both sides along its thickness direction results in higher strength of the filler 12; if the hardened layer 122 is coated on only one side of the base layer 121 along its thickness direction, the filler 12 will meet the strength requirements, and the other side will not need to be coated with the hardened layer 122, which helps to control costs.

[0166] Furthermore, when the base layer 121 is made of low-lignin fibers such as cotton or linen, the base layer 121 itself can generate less fiber impurities, so a single-layer coating of the hardening layer 122 is sufficient to improve the strength of the filler 12. When the base layer 121 is made of medium- or high-lignin fiber paper such as broadleaf or softleaf fibers, the base layer 121 itself can generate more fiber impurities. Therefore, a hardening layer 122 can be coated on both sides of the base layer 121 along its thickness direction. This not only improves the strength of the filler 12 but also reduces the release of fiber impurities, thus confining the fiber impurities inside the filler 12 and improving the user experience.

[0167] In one embodiment, the maximum distance between two points on the outer periphery of the cross section of the front plug section 10 on a plane perpendicular to the axial direction of the front plug section 10 is d.

[0168] It should be noted that the front plug section 10 is fitted into a cylinder, and the front plug section 10 is placed inside the cylinder. By shrinking the diameter of the cylinder until the front plug section 10 can no longer produce horizontal displacement within the cylinder, the diameter of the inner circle of the cylinder at this point is d as mentioned above. For example, for a front plug section 10 with an elliptical cross-sectional shape, d is the major axis of the ellipse; for a front plug section 10 with a rectangular cross-sectional shape, d is the dimension of the diagonal line connecting the two sides of the rectangle.

[0169] In some embodiments, please refer to Figures 11 to 20 The number of filler elements 12 is one, and the width of filler element 12 ranges from 2d to 60d. For example, it can be 2d, 5d, 8d, 11d, 14d, 17d, 20d, 23d, 26d, 29d, 32d, 35d, 38d, 41d, 44d, 47d, 50d, 53d, 56d, 59d, 60d, etc.

[0170] It should be noted that, in a plane perpendicular to the axial direction of the front plug section 10, the cross-section of the filler 12 presents as a continuous line (e.g., Figure 15 As shown), the width of filler 12 is the total length of the line.

[0171] It should be noted that "2d" refers to a width of 2 times d, and "60d" and so on can be understood in the same way, that is, "60d" refers to a width of 60 times d.

[0172] In this embodiment, on the one hand, the width of the filler 12 is not less than 2d, thereby ensuring that the wrapping layer 11 has sufficient filling and reducing the probability of the filler 12 falling out of the wrapping layer 11, which is beneficial to ensuring the user's user experience; on the other hand, the width of the filler 12 is not greater than 60d, that is, the wrapping layer 11 will not have excessive filling, thereby effectively controlling the suction resistance of the front plug section 10. In addition, when the filler 12 is made of paper, there will be no problem of excessive paper material used in the front plug section 10. During user use, it can effectively improve the problems of heavy paper impurities in the aerosol generating product 100 and poor user experience.

[0173] In other embodiments, there are multiple filler elements 12, and the sum of the widths of each filler element 12 ranges from 2d to 60d. For example, they can be 2d, 4d, 7d, 10d, 16d, 22d, 25d, 28d, 34d, 37d, 40d, 44d, 45d, 48d, 50d, 53d, 57d, 60d, etc.

[0174] For example, when there are multiple fillers 12, each filler 12 is bent to form a whole, that is, each layered filler 12 is embossed to form a pleated shape, and then the embossed fillers 12 are stacked to form a filling part (e.g. Figure 9 and Figure 10 (As shown). Alternatively, multiple filler elements 12 can be stacked together, with the overall thickness of the stacked filler elements 12 being larger than the thickness of a single filler element 12. Then, the stacked filler elements 12 can be embossed to form a wrinkled filling section (e.g., Figures 5 to 8 (As shown).

[0175] In other embodiments, the multiple fillers 12 can also be divided into a first part and a second part. Each layered filler 12 in the first part is embossed to form a pleated shape. The fillers 12 in the second part are stacked together, and after being stacked together, they are embossed to form a pleated shape. The fillers 12 in the first part and the fillers 12 in the second part together constitute a pleated filling section. In this embodiment, on the one hand, the sum of the widths of each filler 12 is not less than 2d, thereby ensuring that the wrapping layer 11 has sufficient filling amount and reducing the probability of the fillers 12 falling out of the wrapping layer 11, which is beneficial to ensuring the user's user experience. On the other hand, the sum of the widths of each filler 12 is not greater than 60d, that is, the wrapping layer 11 will not have the problem of excessive filling amount, thereby effectively controlling the suction resistance of the front plug section 10. Similarly, when paper is used to manufacture the fillers 12, the problem of excessive paper material used in the front plug section 10 will not occur. During user use, it can effectively improve the problems of heavy paper impurities in the aerosol generating product 100 and poor user experience.

[0176] To confirm whether you want to select one or multiple fillers 12, please refer to the following:

[0177] The value (cross-sectional area deformation ratio) is determined based on the compressibility of the filler 12 during use.

[0178] It should be noted that the greater the compressibility, the better the elastic deformation performance of the filler 12, and the more it can recover its original shape after use.

[0179] When the compressibility of the filler 12 during use is greater than 0.75, although the internal hardened layer 122 is relatively hard, it can still shrink according to the usage environment and recover its shape after use, ensuring the consistency of the product's appearance before and after use. When the compressibility of the filler 12 during use is less than 0.75, if a single base layer 121 is still used, it will cause the filler 12 to undergo plastic deformation. Therefore, when the compressibility of the filler 12 during use is less than 0.75, multiple fillers 12 of the same specification or multiple fillers 12 of different specifications consisting of base layers 121 and hardened layers 122 can be used for molding to ensure the consistency of the filler 12's appearance before and after use, which is beneficial to improving the user experience.

[0180] In one embodiment, the filler 12 has a fill rate in the encapsulation layer 11 ranging from 10% to 98%. For example, it can be 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50%, 55%, 60%, 65%, 70%, 75%, 80%, 85%, 90%, 95%, 98%, etc.

[0181] Filling rate = ((sum of widths of each filler component × filler component thickness) - (width of the wrapping layer × thickness of the wrapping layer)) / cross-sectional area of ​​the fore-end section.

[0182] Please see Figures 2 to 4 The sum of the widths of each filler and the thickness of the filler refer to the sum of the cross-sectional areas of each filler 12 on a plane perpendicular to the axial direction of the aerosol-generating product 100.

[0183] It is understandable that when there is only one filler 12, the cross-sectional area of ​​one filler 12 is the sum of the cross-sectional areas of all fillers 12.

[0184] Please see Figures 2 to 4 The width of the coating layer × the thickness of the coating layer refers to the cross-sectional area of ​​the coating layer 11 on a plane perpendicular to the axial direction of the aerosol generating product 100.

[0185] Please see Figures 2 to 4 The cross-sectional area of ​​the front plug section refers to the cross-sectional area of ​​the area enclosed by the outer wall of the wrapping layer 11 on a plane perpendicular to the axial direction of the aerosol generating product 100.

[0186] Alternatively, the fill rate = (sum of widths of each filler element × filler element thickness) / cross-sectional area of ​​the area enclosed by the inner wall of the wrapping layer.

[0187] Please see Figures 2 to 4 The cross-sectional area of ​​the region enclosed by the inner wall of the coating layer refers to the cross-sectional area of ​​the region enclosed by the inner wall of the coating layer 11 on a plane perpendicular to the axial direction of the aerosol generating product 100.

[0188] The specific value of the fill rate can be selected according to the requirements.

[0189] It should be noted that when the filling rate is too low, the strength of the front plug section 10 is low during use, and the aerosol generating product 100 is prone to deformation and breakage during the suction process, which reduces the user experience; when the filling rate is too high, the suction resistance of the front plug section 10 is large during the suction process, which is not conducive to the user's suction of aerosol.

[0190] In this embodiment, the front plug section 10 has a filling rate controlled within the range of 10%-98%. The front plug section 10 has high structural strength and does not generate too much suction resistance.

[0191] In one embodiment, please refer to Figure 1 and Figure 2 The aerosol generating product 100 also includes a basic structure section 30, which is located at the end of the medium section 20 away from the front plug section 10. The basic structure section 30 includes at least one of a cooling section 31, a filtration section 32, and a support section 33.

[0192] Specifically, such as Figure 2 As shown, the basic structure section 30 includes a cooling section 31, a support section 33, and a filter section 32. The support section 33 is located at one end of the medium section 20 axially away from the front plug section 10. One end of the cooling section 31 is located at the other end of the support section 33 axially away from the medium section 20. The filter section 32 is located at the other end of the cooling section 31. The support section 33 connects and supports the medium section 20 and the cooling section 31 at both ends. The cooling section 31 is used to reduce the temperature of the aerosol so that the temperature of the aerosol flowing out of the filter section 32 is suitable, avoiding the problem of the aerosol "scalding" the mouth.

[0193] Of course, the positions of the cooling section 31 and the support section 33 can also be interchanged, that is, the cooling section 31 is connected to the end of the medium section 20 away from the front plug section 10, and the two ends of the support section 33 are connected to the other end of the cooling section 31 and the filter section 32 respectively.

[0194] The structure of the support section 33 is not limited. For example, it can be a hollow paper tube structure or a hollow aluminum foil tube structure. Hollow paper tube structures and hollow aluminum foil tube structures have good heat resistance, are not easily deformed when heated, and can still maintain their shape after receiving heat conduction, which can increase the structural stability of the aerosol-generated product 100.

[0195] Of course, it can also be a hollow cellulose acetate structure, a hollow aluminum foil paper tube structure, a hollow silicone structure, etc.

[0196] The cooling section 31 can be, for example, a cellulose acetate tube or an aluminum foil tube. In some embodiments, the cooling section 31 has a porous structure. When the airflow carrying aerosols passes through the cooling section 31, a Venturi effect is formed (the Venturi effect refers to the phenomenon that the fluid velocity increases when passing through a narrowed flow cross-section, and the flow velocity is inversely proportional to the flow cross-section). The aerosols can pass through the cooling section 31 more quickly, thereby allowing for faster extraction of the aerosols. The cooling section 31 has a large specific surface area, which enables rapid cooling of the aerosols.

[0197] Of course, the cooling section 31 can also be one of hollow cellulose acetate or corrugated paper tubes.

[0198] The outer packaging layer 40 can wrap around the outer periphery of the basic structural section 30.

[0199] It should be noted that when the outer packaging layer 40 covers the entire circumferential outer surface of the filter section 32, the user can directly put the outer packaging layer 40 in their mouth to use the aerosol. When the outer packaging layer 40 covers part of the circumferential outer surface of the filter section 32, the user can directly put the part of the filter section 32 exposed outside the outer packaging layer 40 in their mouth to inhale the aerosol. Of course, the user can also attach a mouthpiece to the filter section 32 and inhale the aerosol through the mouthpiece.

[0200] It should be noted that the outer packaging layer 40 can be a single layer, that is, a single outer packaging layer 40 can simultaneously wrap the medium section 20, the front plug section 10, and the basic structure section 30.

[0201] Of course, the outer packaging layer 40 can also be multi-layered. Any one of the medium segment 20, the fore-plug segment 10, and the basic structure segment 30 can be wrapped by at least one outer packaging layer 40 to obtain a multi-segment structure; or, at least two of the medium segment 20, the fore-plug segment 10, and the basic structure segment 30 can be wrapped by at least one outer packaging layer 40 to obtain a multi-segment structure, and the multi-segment structure can be wrapped by one or more outer packaging layers 40 to obtain the aerosol generating product 100.

[0202] In one embodiment, please refer to Figure 3 and Figure 4 On a plane perpendicular to the axial direction of the aerosol generating product 100, the cross-sectional area of ​​the front plug section 10 is 0.4-0.95 of the cross-sectional area of ​​the medium section 20. For example, it is 0.4, 0.45, 0.5, 0.55, 0.6, 0.65, 0.7, 0.75, 0.8, 0.85, 0.9, 0.95, etc.

[0203] It should be noted that the cross-sectional area of ​​the front plug section 10 refers to the area of ​​the cross section of the front plug section 10 in a plane perpendicular to the axial direction of the front plug section 10.

[0204] The cross-sectional area of ​​the medium section 20 is also the area of ​​the cross section of the medium section 20 in a plane perpendicular to the axial direction of the front plug section 10.

[0205] It is understandable that the cross-sectional area of ​​the medium segment 20 is basically equal to the area of ​​the region enclosed by the inner wall of the outer packaging layer 40.

[0206] On the one hand, the ratio of the cross-sectional area of ​​the front plug section 10 to the cross-sectional area of ​​the medium section 20 is controlled within a range of not less than 0.4, and the size of the peripheral air passage 100c formed between the front plug section 10 and the outer packaging layer 40 is not too large. In this way, the concentration of the airflow flowing through the peripheral air passage 100c to the medium section 20 is relatively high, thereby improving the extraction efficiency of the airflow for aerosols. At the same time, the suction resistance of the front plug section 10 can be controlled within a suitable range, so that the aerosol generating product 100 has a certain suction resistance during the suction process, reducing the probability of vacuuming when the user suctions the aerosol.

[0207] On the other hand, the ratio of the cross-sectional area of ​​the front plug section 10 to the cross-sectional area of ​​the medium section 20 is controlled within a range of no more than 0.95, and the size of the peripheral air passage 100c formed between the front plug section 10 and the outer packaging layer 40 is not too small. In this way, the suction resistance when aerosol is drawn can be reduced as much as possible through the peripheral air passage 100c, thereby reducing the probability of users having difficulty drawing aerosol or being unable to draw aerosol.

[0208] Furthermore, in some embodiments, the ratio of the cross-sectional area of ​​the fore-plug section 10 to the cross-sectional area of ​​the medium section 20 ranges from 0.65 to 0.91. Examples include 0.65, 0.67, 0.69, 0.71, 0.73, 0.75, 0.77, 0.79, 0.81, 0.83, 0.85, 0.87, 0.89, 0.91, etc. Thus, the peripheral air passage 100c formed between the fore-plug section 10 and the outer packaging layer 40 has more suitable dimensions.

[0209] In one embodiment, please refer to Figure 1 and Figure 2 The length of the front plug section 10 is 1 / 12 to 1 / 3 of the length of the aerosol-generating product 100. For example, it can be 1 / 12, 1 / 11, 1 / 10, 1 / 9, 1 / 8, 1 / 7, 1 / 6, 1 / 5, 1 / 4, 1 / 3, etc.

[0210] On the one hand, the ratio of the axial dimension L1 of the front plug section 10 to the axial dimension L2 of the aerosol generating product 100 is controlled within a range of not less than 1 / 12. In this way, the front plug section 10 has a sufficiently long dimension to ensure the filtration and adsorption effect of the front plug section 10 on backflow or reflux of aerosols, and to ensure the cleanliness of the containment chamber of the aerosol generating device. At the same time, the front plug section 10 has a suitable dimension, which is easy to process, that is, the processing performance is relatively good, and the yield rate of the front plug section 10 in the production process is improved.

[0211] On the other hand, by controlling the ratio of the axial dimension L1 of the front plug section 10 to the axial dimension L2 of the aerosol generating product 100 to no more than 1 / 3, the suction resistance generated by the front plug section 10 during the aerosol extraction process can be controlled within a suitable range. The suction resistance of the front plug section 10 will not be too large, that is, the impact on the user's aerosol extraction process is small, effectively avoiding the problem of reduced user experience.

[0212] Furthermore, in some embodiments, the ratio of the axial dimension L1 of the front plug section 10 to the axial dimension L2 of the aerosol generating article 100100 ranges from 1 / 10 to 1 / 4. Examples include 1 / 10, 2 / 19, 1 / 9, 2 / 17, 1 / 8, 2 / 15, 2 / 7, 2 / 13, 1 / 6, 2 / 11, 1 / 5, 2 / 9, 1 / 4, etc. Thus, the front plug section 10 has more suitable dimensions.

[0213] Please see Figure 26 Thirdly, embodiments of this application provide a method for manufacturing a front plug section 10. It should be noted that this manufacturing method can be applied to the manufacture of the front plug section 10 in any embodiment of this application.

[0214] Manufacturing methods include:

[0215] S100: Embossing the filler to obtain a pleated filler section.

[0216] S200: The filling part and the wrapping layer are brought together to form a non-cylindrical front plug section.

[0217] It should be noted that the manufacturing method of the front plug section in this embodiment is applicable to... Figures 23 to 25 Production line of any embodiment.

[0218] Embossing is a processing technique that uses embossing to create specific patterns and textures on the surface of a material. Under certain pressure and temperature, embossing can deform the material, creating equidistant creases / cracks, and inducing stress / elasticity in the paper during the crease process. This stress and elasticity, generated during the later forming process, allow the filler 12 to be evenly distributed within the wrapping layer 11.

[0219] Please see Figures 23 to 25 The production line includes an embossing device 3 and a gathering device 4.

[0220] After the base layer paper material 1 is processed, it becomes the filler 12. After passing through the embossing device 3, the filler 12 produces creases and becomes a pleated filling part.

[0221] The filling part and the wrapping paper 2 enter the gathering device 4, thereby gathering and forming a non-cylindrical front plug section 10.

[0222] In one embodiment, the filling portion and the wrapping layer are brought together to form a non-cylindrical front plug section, specifically including:

[0223] The filling part is gathered into a non-cylindrical structure, and the filling part is wrapped with a wrapping layer to obtain a non-cylindrical front plug section.

[0224] It should be noted that the manufacturing method of the front plug section in this embodiment is applicable to... Figures 23 to 25 Production line of any embodiment.

[0225] The gathering device 4 can be configured as a non-circular gathering opening. For example, it can be a polygonal gathering opening, a corrugated gathering opening, an elliptical gathering opening, or other irregularly shaped gathering openings. After the filling part passes through the non-circular gathering opening, it is gathered into a pentagon, hexagon, or other regular or irregular non-circular shape under the action of the non-circular gathering opening. At the same time, the filling part is wrapped and shaped by the wrapping paper 2, and the front plug section 10 is obtained after the outer wrapping layer 11 is applied.

[0226] In other words, in this embodiment, the filling part is gathered into a non-cylindrical structure, and the wrapping layer 11 then covers the outer periphery of the filling part to achieve shaping. Thus, the front plug section 10 has lower requirements for the structural strength of the wrapping layer 11, and the range of materials for the wrapping layer 11 is wider.

[0227] In one embodiment, the filling portion and the wrapping layer are brought together to form a non-cylindrical front plug section, specifically including:

[0228] A non-cylindrical wrapping layer and filling part are gathered and shaped to obtain a non-cylindrical front plug section.

[0229] It should be noted that the manufacturing method of the front plug section in this embodiment is applicable to... Figures 23 to 25 Production line of any embodiment.

[0230] In other words, in this embodiment, the filling part is wrapped by the wrapping layer 11. The filling part is limited by the shape of the wrapping layer 11. The non-circular wrapping paper 2 and the filling part enter the gathering device 4. Under the action of the gathering device 4, the filling part fills the interior of the wrapping paper 2. Since the wrapping paper 2 is a non-circular structure, a non-cylindrical front plug section 10 can be obtained.

[0231] In this embodiment, a relatively rigid wrapping layer 11 can be selected, such as corrugated paper. This reduces the likelihood of damage to the wrapping layer 11 during the assembly and forming process.

[0232] The filling part is wrapped with a non-cylindrical wrapping layer 11, which reduces the shaping requirements of the filling part. The filling part only needs to be wrapped by the wrapping layer 11 and deform.

[0233] In one embodiment, before embossing the filler to obtain a wrinkled filler portion, the manufacturing method includes:

[0234] The hardening material and solvent are mixed and then coated onto the surface of the base layer to form a filler.

[0235] It should be noted that the manufacturing method of the front plug section in this embodiment is applicable to... Figure 24 or Figure 25 The production line shown.

[0236] Please see Figure 24 and Figure 25 A spraying device 7 is set downstream of the base paper 1. After the hardening material and solvent are mixed, a mixture of hardening layer 122 is obtained. The mixture of hardening layer 122 can be uniformly coated onto the base layer 121 through the spraying device 7 (or onto the base paper 1 on the production line). The hardening layer 122 can better cover the side of the base layer 121 in the thickness direction.

[0237] In one embodiment, before coating the hardening material and solvent onto the surface of the substrate to form a filler, the manufacturing method includes:

[0238] One or more of the following are mixed to obtain a hardened material: cellulose, polysaccharides, polylactic acid, butylene terephthalate, and polyethylene terephthalate.

[0239] Mix one or more of water, ethanol, and glycerol to form a solvent.

[0240] It should be noted that the order in which the hardening material and the solvent are obtained is not restricted. One step can be completed first, followed by the other; or both steps can be performed simultaneously.

[0241] The mixture of hardening material and solvent is uniformly mixed to obtain hardened layer 122.

[0242] In one embodiment, after the hardening material and solvent are mixed and coated onto the surface of the substrate to form a filler, the manufacturing method includes heating and drying the filler.

[0243] It should be noted that the manufacturing method of the front plug section in this embodiment is applicable to... Figure 24 The production line shown.

[0244] Please see Figure 24The drying device 6 is located downstream of the spraying device 7 and upstream of the gathering device 4. After the mixture of the hardening layer 122 is coated on the base paper 1, the filler 12 is heated and dried by the drying device 6. The mixture of the hardening layer 122 can be dried and shaped quickly. As a result, the range of solvent addition is wider and the quality of the product is easier to control in the later stage.

[0245] In one embodiment, after the filling portion and the wrapping layer are brought together to form a non-cylindrical front plug section, the manufacturing method includes heating and drying the front plug section.

[0246] It should be noted that the manufacturing method of the front plug section in this embodiment is applicable to... Figure 25 The production line shown.

[0247] Please see Figure 25 The drying device 6 is located downstream of the gathering device 4. The base layer paper 1 is embossed and gathered with the wrapping layer paper 2 to form a shape, and then heated and dried. This implementation path is adopted when the hardening material is relatively volatile or the solvent addition is high. Since the proportion of hardening material is small, it can be directly volatilized and formed, and the shape is well fixed after direct forming.

[0248] In one embodiment, the drying temperature for heating and drying is between 80°C and 140°C. For example, it can be 80°C, 85°C, 90°C, 95°C, 100°C, 105°C, 110°C, 115°C, 120°C, 125°C, 130°C, 135°C, 140°C, etc.

[0249] The drying device 6 can be manually or automatically controlled to keep the drying temperature within the specified range.

[0250] The drying temperature is controlled between 80℃ and 140℃, which is the most suitable range. This means the drying temperature will not be too low to ensure drying efficiency and improve processing efficiency; conversely, the drying temperature will not be too high to reduce the likelihood of cracking of the hardened layer and scorching of the paper during the drying process, thus increasing the product yield.

[0251] In one embodiment, after the filling portion and the wrapping layer are brought together to form a non-cylindrical front plug section, the manufacturing method includes:

[0252] The front plug section is cut into segments.

[0253] It should be noted that the manufacturing method of the front plug section in this embodiment is applicable to... Figures 23 to 25 Production line of any embodiment.

[0254] Please see Figures 23 to 25The front plug section 10 can be cut into a set length by the cutting device 5. In this way, the front plug section 10 of the set length can meet the usage requirements of the aerosol generating product 100.

[0255] It is understandable that there is no limit to the specific value of the set length, and the set length can be set according to the usage requirements of the aerosol generated product 100.

[0256] The slitting device 5 generally includes a slitting tool, which slits the pre-slub section 10 through physical contact or non-physical contact.

[0257] Physical contact refers to cutting the front plug section 10 by direct contact between a cutting tool and the front plug section 10. For example, the cutting tool can be a rotary cutter, a cutting disc, a cutting line, a roller cutter, or an extruder.

[0258] Non-physical contact means that the cutting tool does not need to directly contact the front plug section 10 to cut it. For example, the cutting tool releases laser, plasma, air blade, or water jet to cut the front plug section 10.

[0259] The following three specific embodiments will be used to illustrate the following:

[0260] First Embodiment

[0261] Methylcellulose, tamarind polysaccharide, and PLA (polylactic acid) were mixed in a ratio of 55:25:20 and placed in warm water at 60°C. After stirring and mixing, the mixture for hardening layer 122 was obtained. The mixture for hardening layer 122 was then coated to a thickness of 60 g / m². 2 The surface of the base layer paper material 1 made of broad-leaf fiber is dried at 110°C to the appropriate moisture content to obtain the required filler 12. The filler 12 is then cut into 4d multiple widths (28mm), and after embossing and gathering, a 0.2mm wrapping layer 11 is wrapped on the outer layer to obtain the front plug section 10 with d=7mm.

[0262] The manufacturing method of the fore-plug section in this embodiment is applicable to Figure 25 The production line shown.

[0263] Second Embodiment

[0264] Microcrystalline cellulose, pullulan, and sodium alginate were mixed in a ratio of 65:20:15 and then placed in ethanol at 60°C. After stirring and mixing, the mixture for hardening layer 122 was obtained. The mixture for hardening layer 122 was then coated to a thickness of 40 g / m². 2The surface of the base layer paper material 1 made of hemp pulp fiber is dried at 90°C to the appropriate moisture content to obtain the required filler 12. The filler 12 is then cut into 35d multiple widths (280mm), and after embossing and gathering, a 0.4mm wrapping layer 11 is wrapped on the outer layer to obtain the front plug section 10 with d=8mm.

[0265] The manufacturing method of the fore-plug section in this embodiment is applicable to Figure 25 The production line shown.

[0266] Third Embodiment

[0267] Microcrystalline cellulose, carboxymethyl cellulose, and condensed polysaccharide were placed in an aqueous solution at 70°C in a ratio of 75:20:5 and stirred until homogeneous to obtain the mixture for hardening layer 122. The mixture for hardening layer 122 was then coated onto a 65 g / m² substrate. 2 A filler 12 is obtained on the surface of a base paper material 1 made of bamboo fiber. The filler 12 is then embossed and shaped, and then wrapped with a 0.6mm wrapping layer 11 on the outer layer. After drying and setting at 110℃, a front plug section 10 with d=7.8mm is obtained.

[0268] The manufacturing method of the fore-plug section in this embodiment is applicable to Figure 24 The production line shown.

[0269] The above embodiments are merely illustrative of the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. 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, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A pre-plug section, applied to aerosol-generating products, characterized in that, On a plane perpendicular to the axial direction of the front plug section, the outer contour cross-section of the front plug section is non-circular. The front plug section includes a wrapping layer and a filling part. The filling part is formed by multiple bending of a layered filling material and is in a pleated shape. The filling part is disposed within the wrapping layer and forms a channel extending from one end of the front plug section to the other end within the wrapping layer.

2. The fore-plug section according to claim 1, characterized in that, The cross-sectional shape of the wrapping layer can be corrugated, polygonal, racetrack-shaped, fan-shaped, or elliptical.

3. The fore-plug section according to claim 1, characterized in that, The outer wall of the wrapping layer is recessed to form an air groove, which extends axially along the front plug section.

4. The fore-plug section according to claim 3, characterized in that, On a plane perpendicular to the axial direction of the front plug section, the cross-sectional shape of the air groove is V-shaped, arc-shaped, or polygonal.

5. The fore-plug section according to claim 3, characterized in that, The number of air grooves is multiple, and each air groove is evenly distributed along the circumference of the front plug section; and / or, The air groove extends either axially or spirally parallel to the front plug section.

6. The fore-plug section according to claim 1, characterized in that, The material of the wrapping layer is corrugated paper, kraft paper, parchment paper, imitation parchment paper, yarn tube paper, or coated paper. The front plug section is formed by gathering the filling part together through the wrapping layer.

7. The fore-plug section according to claim 1, characterized in that, On a plane perpendicular to the axial direction of the front plug section, the maximum distance between two points on the outer periphery of the cross section of the front plug section is d; The number of fillers is one, and the width of the filler ranges from 2d to 60d; or, The number of fillers is multiple, and the sum of the widths of each filler ranges from 2d to 60d.

8. The fore-plug section according to claim 1, characterized in that, The filler is made of fiber paper with a basis weight range of 20 g / m³. 2 -140g / m 2 .

9. The fore-plug section according to claim 1, characterized in that, The filler includes a base layer and a hardening layer stacked together.

10. The forepump section according to claim 9, characterized in that, The number of base layers and hardening layers is one; or, the number of base layers is one, and the number of hardening layers is two, with the two hardening layers respectively stacked on both sides of the base layer along the thickness direction.

11. The fore-plug section according to claim 9, characterized in that, The base layer is made of at least one of broadleaf fiber, softleaf fiber, hemp fiber, and bamboo fiber.

12. The fore-plug section according to claim 9, characterized in that, The hardening layer is formed by coating the substrate surface with a mixture of hardening material and solvent. The hardening material includes at least one of cellulose, polysaccharides, polylactic acid, butylene terephthalate, and polyethylene terephthalate.

13. The forepump section according to claim 1, characterized in that, The filler has a fill rate of 10%-98% within the wrapping layer.

14. An aerosol-generating article, said aerosol-generating article having a distal lip end and a proximal lip end, characterized in that, include: The medium section is used to generate aerosols; The fore-plug section according to any one of claims 1-13 is disposed at one end of the medium section and located at the distal lip end of the aerosol generating article.

15. The aerosol-generating article according to claim 14, characterized in that, The aerosol-generating product further includes a basic structural section, which is located at the end of the medium section away from the front plug section. The basic structural section includes at least one of a support section, a filter section, and a cooling section.

16. The aerosol-generating article according to claim 14, characterized in that, On a plane perpendicular to the axial direction of the aerosol-generating product, the cross-sectional area of ​​the fore-plug section is 0.4-0.95 of the cross-sectional area of ​​the medium section.

17. The aerosol-generating article according to claim 14, characterized in that, The length of the fore-plug section is 1 / 12 to 1 / 3 of the length of the aerosol-generated product.

18. A method for manufacturing a front plug section, characterized in that, include: The filler is embossed to obtain a pleated filler portion; The filling part and the wrapping layer are brought together to form a non-cylindrical front plug section.

19. The manufacturing method according to claim 18, characterized in that, The step of bringing the filling portion and the wrapping layer together to form a non-cylindrical front plug section specifically includes: The filling portion is gathered into a non-cylindrical structure, and the filling portion is wrapped with a wrapping layer to obtain a non-cylindrical front plug section.

20. The manufacturing method according to claim 18, characterized in that, The step of bringing the filling portion and the wrapping layer together to form a non-cylindrical front plug section specifically includes: A non-cylindrical wrapping layer is brought together with the filling part to form a non-cylindrical front plug section.

21. The manufacturing method according to claim 18, characterized in that, Before embossing the filler to obtain a wrinkled filler portion, the manufacturing method includes: The hardening material and solvent are mixed and then coated onto the surface of the base layer to form the filler.

22. The manufacturing method according to claim 21, characterized in that, Before coating the hardening material and solvent onto the substrate surface to form the filler, the manufacturing method includes: One or more of the following are mixed to obtain the hardened material: cellulose, polysaccharides, polylactic acid, butylene terephthalate, and polyethylene terephthalate. The solvent is formed by mixing one or more of water, ethanol, and glycerol.

23. The manufacturing method according to claim 21, characterized in that, After uniformly mixing the hardening material and solvent and coating it onto the surface of the substrate to form the filler, the manufacturing method includes: heating and drying the filler; or, After the filling part and the wrapping layer are brought together to form a non-cylindrical front plug section, the manufacturing method includes: heating and drying the front plug section.

24. The manufacturing method according to claim 23, characterized in that, The drying temperature for the heat drying process is between 80°C and 140°C.

25. The manufacturing method according to claim 18, characterized in that, After the filling portion and the wrapping layer are brought together to form a non-cylindrical forepump section, the manufacturing method includes: The fore-end section is cut into segments.

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