Front plug segment and aerosol-generating product

Abstract

The embodiment of the utility model discloses a front plug section and an aerosol generating product, the front plug section comprises a wrapping layer and a 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 constructed in the wrapping layer. According to the embodiment of the invention, the front plug section can reduce the probability that the medium section falls off from the outer packaging layer, and meanwhile, the front plug section does not generate too large suction resistance to suction of aerosol. Besides, after suction is finished, aerosol can flow backwards / backwards due to the negative pressure generated in the suction process of the containing bin, and the filling part in the wrinkle shape has a good adsorption effect and can adsorb the aerosol in the flow backwards / backwards process, so that the problems that the containing bin is polluted by the aerosol and is not easy to clean are solved; and the problem of odor tainting possibly caused by smoking aerosol generation products with different tastes can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of smoking products, and in particular to a front plug section and an aerosol generating product. Background Art

[0002] This section is intended to provide a background or context to the embodiments described in this application. No description herein is admitted to be prior art by inclusion in this section.

[0003] Smoking products include aerosol-generating products that form aerosols by ignition and aerosol-generating products that form aerosols by heating without burning. In a typical heat-without-burning aerosol-generating product, it includes a medium segment that can generate aerosols when heated and a front plug segment disposed upstream of the medium segment. The medium segment is heated by an external heat source to a degree that is just enough to emit the required components and flavors. The front plug segment can usually absorb the condensed liquid when the aerosol in the aerosol-generating product condenses, preventing the liquid from flowing out of the aerosol-generating product and contaminating the heating device.

[0004] Among them, the inhalation resistance of the aerosol generating product during the inhalation process is an important indicator of the aerosol generating product. In the related art, during the aerosol inhalation process, the inhalation resistance generated by the front plug section is relatively large, which reduces the user's experience. Utility Model Content

[0005] In view of this, the embodiments of the present application hope to provide a front plug segment and an aerosol generating product, aiming to reduce the inhalation resistance generated by the front plug segment to improve the user experience.

[0006] To achieve the above purpose, the technical solution of the embodiment of the present application is implemented as follows:

[0007] In a first aspect, an embodiment of the present application provides a front plug segment, which is applied to an aerosol generating product, wherein the front plug segment includes a wrapping layer and a filling portion, wherein the filling portion is formed by multiple bending of a layered filling member and is in a pleated form, and the filling portion is arranged in the wrapping layer to construct a channel in the wrapping layer extending from one end of the front plug segment to the other end.

[0008] In one embodiment, the front plug segment is cylindrical, and the diameter of the front plug segment is d;

[0009] The number of the filler is one, and the width of the filler is in the range of 2d-60d; or,

[0010] There are multiple fillers, and the sum of the widths of the fillers is in the range of 2d-60d.

[0011] In one embodiment, the filler is made of fiber paper, and the weight of the fiber paper is in the range of 20 g / m 2 -140g / m 2 .

[0012] In one embodiment, the filling member includes a base layer and a hardening layer which are stacked.

[0013] In one embodiment, the number of the base layer and the number of the hardened layer are both one layer; or, the number of the base layer is one layer, the number of the hardened layers is two layers, and the two hardened layers are respectively stacked on both sides of the base layer along the thickness direction.

[0014] In one embodiment, the material of the base layer includes at least one of broadleaf fiber, coniferous fiber, hemp fiber, and bamboo fiber.

[0015] In one embodiment, the hardening layer is formed by coating a hardening material and a solvent mixed together on the surface of the base layer, and the hardening material includes at least one of cellulose, polysaccharides, polylactic acid, butylene terephthalate, and polyethylene terephthalate.

[0016] In one embodiment, the material of the wrapping layer includes at least one of polylactic acid, fiber paper, polyethylene, and polyethylene terephthalate.

[0017] In one embodiment, the thickness of the wrapping layer is in the range of 0.05 mm to 0.5 mm.

[0018] In one embodiment, the filling rate of the filling member in the wrapping layer ranges from 10% to 98%.

[0019] In a second aspect, an embodiment of the present application provides an aerosol generating article, wherein the aerosol generating article has a distal lip end and a proximal lip end, comprising:

[0020] A medium segment, used for generating aerosol;

[0021] The front plug segment described in any of the above embodiments is arranged at one end of the medium segment and is located at the distal lip end of the aerosol generating product.

[0022] In one embodiment, the aerosol generating product further comprises a basic structure segment, wherein the basic structure segment is disposed at one end of the medium segment away from the front plug segment, and the basic structure segment comprises at least one of a supporting segment, a filtering segment and a cooling segment.

[0023] In one embodiment, the length of the front plug section is 1 / 12-1 / 3 of the length of the aerosol generating article.

[0024] The front plug section of the embodiment of the present application is composed of a wrapping layer and a filling part. The filling part is formed by multiple bending of a layered filling member and is in a folded shape. The filling part is arranged in the wrapping layer to construct a channel extending from one end of the front plug section to the other end in the wrapping layer. The external airflow can flow to the medium section through the channel, thereby reducing the suction resistance of the front plug section to the aerosol, thereby improving the user experience. In other words, after the front plug section of the embodiment of the present application is used for aerosol generation products, it can reduce the probability of the medium section falling off from the outer packaging layer. At the same time, the front plug section will not produce too much suction resistance to the aerosol suction. In addition, after the suction is completed, the negative pressure generated in the suction process of the containing chamber will cause the aerosol to flow back / back, and the filling part with a folded shape has a good adsorption effect, which can adsorb the aerosol in the backflow / backflow process, which is conducive to improving the problem that the containing chamber is contaminated by aerosol and is not easy to clean, and is conducive to improving the problem that the aerosol generation products of different flavors may produce cross-flavors. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic structural diagram of an aerosol generating product according to an embodiment of the present application;

[0026] Figure 2 is a cross-sectional view of an aerosol generating article according to an embodiment of the present application;

[0027] Figure 3 A cross-sectional view of an aerosol generating article according to an embodiment of the present application at a front plug section;

[0028] Figure 4 This is a schematic structural diagram of the front plug section of the first embodiment of the present application;

[0029] Figure 5 This is a schematic structural diagram of the front plug section of the second embodiment of the present application;

[0030] Figure 6 This is a schematic structural diagram of the front plug section of the third embodiment of the present application;

[0031] Figure 7 This is a schematic structural diagram of the front plug section of the fourth embodiment of the present application;

[0032] Figure 8 This is a schematic diagram of the structure of a filling piece according to an embodiment of the present application;

[0033] Fig. 9 This is a schematic structural diagram of a filling piece according to another embodiment of the present application;

[0034] Fig.10 The production line of the first embodiment of the present application;

[0035] Fig.11 The production line of the second embodiment of the present application;

[0036] Fig.12 The production line of the third embodiment of the present application;

[0037] Fig.13 Schematic diagram of a process for manufacturing a front plug segment according to an embodiment of the present application.

[0038] Description of Reference Numerals

[0039] 100, aerosol generating product; 100a, distal lip end; 100b, proximal lip end; 10, front plug section; 10a, channel; 11, wrapping layer; 12, filling piece; 121, base layer; 122, hardening layer; 20, medium section; 30, basic structure section; 31, cooling section; 32, filtering section; 33, supporting section; 40, outer packaging layer;

[0040] 1. Base layer paper; 2. Wrapping layer paper; 3. Embossing device; 4. Gathering device; 5. Slitting device; 6. Drying device; 7. Spraying device. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly described below in conjunction with the drawings in the embodiments of the present application. The following embodiments are only used to more clearly illustrate the technical scheme of the present application, and are therefore only used as examples, and the protection scope of the present application cannot be limited by this. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0042] In the description of the embodiments of the present application, the technical terms "first", "second", "third", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0043] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0044] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0045] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0046] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, the technical term "contact" should be understood in a broad sense, and may be direct contact or contact through an intermediate medium layer. It may be contact with essentially no interaction force between the two contacting parties, or it may be contact with interaction force between the two contacting parties.

[0047] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0048] See also Figures 1 to 3 In a first aspect, an embodiment of the present application provides an aerosol generating product, wherein the aerosol generating product 100 has a distal lip end 100a and a proximal lip end 100b, and the aerosol generating product 100 includes a medium segment 20 and a front plug segment 10 of any embodiment of the present application.

[0049] It should be noted that, generally speaking, the user can use the aerosol generating product 100 by holding it in the mouth, the proximal lip end 100b refers to the end of the aerosol generating product 100 close to the user when the user is using the aerosol generating product 100, and the distal lip end 100a refers to the end of the aerosol generating product 100 away from the user when the user is using the aerosol generating product 100.

[0050] In the embodiment of the present application, the medium segment 20 is substantially cylindrical, which may be a cylindrical shape (i.e., a circular cross-sectional shape), a prism shape (i.e., a polygonal cross-sectional shape), an elliptical cylinder shape (i.e., an elliptical cross-sectional shape), etc., without limitation.

[0051] The aerosol generating article 100 is used in an aerosol generating device, which has a containing chamber. The aerosol generating article 100 can be inserted into the containing chamber and heated by a heating element of the aerosol generating device.

[0052] The medium segment 20 is used to generate aerosol. The heating element is used to convert electrical energy into thermal energy, and the thermal energy acts on the medium segment 20. After the medium segment 20 is heated, it can generate aerosol for users to use.

[0053] The method of heating the medium segment 20 by the heating element is not limited. For example, the heating method includes central heating and circumferential heating. The central heating method refers to that the heating component is inserted into the medium segment 20 to bake and heat the medium segment 20 from the inside to the outside. The circumferential heating method refers to that the heating component is arranged on the periphery of the medium segment 20 to bake and heat the medium segment 20 from the outside to the inside. These heating methods can specifically be resistance heating, electromagnetic heating, infrared heating, microwave heating, laser heating, etc., which are not specifically limited here.

[0054] See also Figures 1 to 3 The aerosol generating product 100 generally further includes an outer packaging layer 40 , which is disposed around the periphery of the front plug segment 10 and the medium segment 20 .

[0055] The outer packaging layer 40 has a certain hardness and can provide a certain degree of protection for the medium segment 20, thereby reducing the surface area of ​​the medium segment 20 directly exposed to the outside world, thereby reducing the probability of the medium segment 20 coming into contact with the air and becoming damp and deteriorating. At the same time, it also reduces the probability of the medium segment 20 coming into contact with other components in the aerosol generating device and causing contamination.

[0056] The specific material of the outer packaging layer 40 is not limited, such as one or more combinations of fiber paper, metal foil, metal foil composite fiber paper, PE (Polyethylene), polyethylene composite fiber paper, PBAT (Poly (butyleneadipate-co-terephthalate, poly (butylene adipate-co-terephthalate)) and the like.

[0057] The front plug section 10 is disposed at one end of the medium section 20 and is 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 from 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 storage bin of the aerosol generating device, thereby causing the problem of internal contamination of the storage bin and difficulty in cleaning, and the problem of possible cross-flavor when inhaling aerosol generating products 100 of different flavors.

[0058] The cross-sectional shape of the outer packaging layer 40 in a plane perpendicular to the axial direction of the aerosol generating article 100 is not limited. Figure 3, the cross-section of the outer packaging layer 40 is a circular ring. The circular ring means that the outer packaging layer 40 has a wall thickness, so the cross-sectional shape of the inner and outer circumferential walls is a circular ring. It can be understood that the outer packaging layer 40 is usually a paper material with a small thickness, for example, less than 1 mm, so its cross-sectional shape can also be considered a circle. In other words, the outer wall surface of the outer packaging layer 40 is a cylindrical surface. With this structure of the outer packaging layer 40, the aerosol generating product 100 has a cylindrical structure as a whole. The aerosol generating product 100 with a cylindrical structure can be inserted into the storage bin at various angles along its circumference, so as to facilitate user use.

[0059] See also Figures 1 to 7 In a second aspect, an embodiment of the present application provides a front plug segment 10 applied to an aerosol generating product 100 .

[0060] The front plug segment 10 includes a wrapping layer 11 and a filling portion. The filling portion is formed by multiple bending of a layered filling piece 12 and is in a pleated form. The filling portion is arranged in the wrapping layer 11 to construct a channel 10a extending from one end of the front plug segment 10 to the other end in the wrapping layer 11.

[0061] See also Figures 3 to 7 , the filling part is in the form of a fold, and the channel 10a extends as a whole along the axial direction of the front plug segment 10. It can be understood that on a plane perpendicular to the axial direction of the front plug segment 10, the cross section of the channel 10a is bent.

[0062] The external airflow can flow to the medium section 20 through the channel 10a, thereby reducing the suction resistance of the aerosol produced by the front plug section 10. At the same time, since the filling part is in a pleated shape, it has a good adsorption effect, which is conducive to reducing the probability of the aerosol flowing downward after condensation and remaining in the containing chamber of the aerosol generating device.

[0063] In the related art, the probability of the medium segment falling out of the outer packaging layer can be effectively reduced by providing a front plug segment, but the front plug segment will produce a large inhalation resistance to the aerosol, reducing the user's inhalation experience. Therefore, it is desirable to develop an aerosol generating product that can prevent the medium segment from falling off and can effectively reduce the inhalation resistance produced by the front plug segment to the aerosol.

[0064] The front plug segment 10 of the embodiment of the present application is composed of a wrapping layer 11 and a filling portion. The filling portion is formed by a layered filling member 12 that is bent multiple times and is in a pleated shape. The filling portion is arranged in the wrapping layer 11 to construct a channel 10a extending from one end of the front plug segment 10 to the other end in the wrapping layer 11. The external airflow can flow to the medium segment 20 through the channel 10a, thereby reducing the suction resistance generated by the front plug segment 10 to the aerosol suction, thereby improving the user experience. In other words, after the front plug segment 10 of the embodiment of the present application is used in the aerosol generating product 100, it can reduce the probability of the medium segment 20 falling off from the outer packaging layer 40. At the same time, the front plug segment 10 will not generate too much suction resistance to the aerosol suction. In addition, after the puffing is completed, the negative pressure generated in the containing chamber during the puffing process will cause the aerosol to flow back / into the chamber, and the pleated filling portion has a better adsorption effect, which can adsorb the aerosol in the process of backflow / into the chamber, which is conducive to improving the problem of the containing chamber being contaminated by aerosols and difficult to clean, and is conducive to improving the problem of cross-flavoring that may occur when puffing aerosol-generated products 100 with different flavors.

[0065] The molding method of the medium segment 20 is not limited. In some embodiments, the medium segment 20 is an integral structure, that is, the medium segment 20 is integrally molded. Exemplarily, the medium segment 20 is a particle combination, also referred to as a powder combination, which is a reconstituted tobacco medium, for example, a reconstituted tobacco medium containing components such as smoke-generating agents and tobacco. The medium segment 20 is an integral structure, for example, an integral structure can be formed by extrusion, injection molding or die-casting molding process. Wherein, extrusion molding refers to adding a raw material mixture to an extruder, and the material is pushed forward by the screw through the action between the extruder barrel and the screw, and is continuously made into a processing method of various cross-section products or semi-finished products through the mold of the extruder discharge port. The medium structure formed by extrusion molding is strip-shaped. In this way, after the medium segment 20 is heated and sucked or stops being heated, it is an integral medium, and it is not easy to disintegrate and fall off, which solves the problem that the thin sheet, filamentous or scattered granular medium segment 20 in the prior art appears, such as the problem of thin sheet loosening, filamentous component, granular component falling off, and difficult cleaning, as well as the problem of uneven components.

[0066] Of course, the medium section 20 may not be an integral structure, for example, it may be in the form of disordered tobacco (formed by directly cutting plant leaves), or in the form of ordered sheets (formed by plant leaf materials and other materials through a papermaking method), or in the form of particles (formed by plant leaf materials and other materials through a granulation method).

[0067] The specific components of the media segment 20 are not limited herein. For example, in some embodiments, the media segment 20 may include plant components, auxiliary components, smoke-generating agent components, adhesive components, and flavor components.

[0068] The plant component is used to generate an aerosol when heated. The auxiliary component is used to provide a skeleton support for the plant component. The smoke-generating agent component is used to generate smoke when heated. The adhesive component is used to bond the various raw material components. The flavor component is used to provide a characteristic aroma. In this way, the plant component and the smoke-generating agent component can ensure the amount of aerosol generated, while the flavor component can enhance the release of aroma during the suction process and enhance the user experience. The auxiliary component can not only improve the fluidity of the mixed material, but also make the medium segment 20 porous to facilitate the extraction and flow of the aerosol. The adhesive component ensures that the plant component and the auxiliary component etc. constitute a stable mixture to avoid a loose structure.

[0069] Exemplarily, the plant component can be one or more combinations of powders formed after crushing tobacco raw materials, tobacco leaf fragments, tobacco stems, tobacco dust, and flavor plants. Plant components are the core source of flavor. Endogenous substances in plant components can produce physiological satisfaction for users. Endogenous substances such as alkaloids enter the human blood and promote the pituitary gland to produce dopamine, thereby obtaining physiological satisfaction.

[0070] Exemplarily, the auxiliary agent component can be one or more combinations of inorganic fillers, lubricants, and emulsifiers. Among them, the inorganic filler includes one or more combinations of heavy calcium carbonate, light calcium carbonate, zeolite, attapulgite, talcum powder, and diatomaceous earth. The inorganic filler can provide a skeleton support for the plant component, and the inorganic filler also has micropores, which can increase the porosity of the medium section 20, thereby increasing the aerosol release rate. The lubricant includes one or more combinations of candelilla wax, carnauba wax, shellac, sunflower wax, rice bran, beeswax, stearic acid, and palmitic acid. The lubricant can increase the fluidity 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 can also reduce the pressure required for the extrusion molding process, and reduce the wear of the die. The emulsifier includes one or more combinations of polyglycerol fatty acid esters, Tween-80, and polyvinyl alcohol. The emulsifier can slow down the loss of flavor substances during storage to a certain extent, increase the stability of flavor substances, and improve the sensory quality of the product.

[0071] Exemplarily, the smoke-generating agent component may include: a monohydric alcohol (such as menthol); a polyhydric alcohol (such as propylene glycol, glycerol, triethylene glycol, 1,3-butylene glycol and tetraethylene glycol); an ester of a polyhydric alcohol (such as triacetin, triethyl citrate, a mixture of diacetin esters, triethyl citrate, benzyl benzoate, glyceryl tributyrate); a monocarboxylic acid; a dicarboxylic acid; a polycarboxylic acid (such as lauric acid, myristic acid) or an aliphatic ester of a polycarboxylic acid (such as dimethyl dodecanedioate, dimethyl tetradecanedioate, erythritol, 1,3-butylene glycol, tetraethylene glycol, triethyl citrate, propylene carbonate, ethyl laurate, Triactin, meso-erythritol, a mixture of diacetin esters, diethyl suberate, triethyl citrate, benzyl benzoate, benzyl phenylacetate, ethyl vanillate, glyceryl tributyrate, lauryl acetate) in one or more combinations.

[0072] Exemplarily, the adhesive component is in close contact with the interface of the component raw materials by wetting, generating intermolecular attraction, thereby playing a role in bonding the component raw materials, such as powders, liquids, etc. The adhesive component can be a natural plant extract, a non-ionized modified viscous polysaccharide, including one or more combinations of tamarind polysaccharide, guar gum, and modified cellulose (such as carboxymethyl cellulose). The adhesive is used to bond the particles together, which is not easy to loosen. In addition, it improves the water resistance of the medium segment 20 and is harmless to the human body.

[0073] Exemplarily, the flavor component is used to provide a characteristic aroma, such as hay aroma, roasted sweet aroma, solid or liquid substances of nicotine. The flavor component may include one or more combinations of tobacco or other plants, flavor plant extracts, extracts, essential oils, and absolute oils; the flavor component may include monomeric flavor substances, such as one or more combinations of megastigmatriene, neophytadiene, geraniol, nerol, etc.

[0074] It should be noted that the cross-sectional shape of the front plug segment 10 is not limited here.

[0075] In some embodiments, see Figures 3 to 6 In a plane perpendicular to the axial direction of the front plug segment 10, the cross-section of the front plug segment 10 is circular.

[0076] In other embodiments, see Figure 7 In a plane perpendicular to the axial direction of the front plug segment 10, the cross-section of the front plug segment 10 is non-circular.

[0077] As can be known from the above, on the plane perpendicular to the axial direction of the front plug segment 10, the outer packaging layer 40 is generally in the shape of a circular ring, while the cross-section of the front plug segment 10 is non-circular. Therefore, after the front plug segment 10 and the outer packaging layer 40 are assembled, a peripheral air channel can be defined between the inner wall of the outer packaging layer 40 and the outer wall of the wrapping layer 11.

[0078] The external airflow can flow to the medium section 20 through the peripheral airway, thereby reducing the suction resistance generated by the front plug section 10 to the aerosol inhalation, which is beneficial to improving the user experience.

[0079] In addition, a peripheral airway is formed on the periphery of the front plug segment 10. After the external airflow flows through the peripheral airway to the medium segment 20, it can gradually flow from the periphery of the medium segment 20 to the inside of the medium segment 20. This process can increase the utilization rate of the periphery of the medium segment 20, thereby improving the suction performance of the aerosol generating product 100.

[0080] In one embodiment, the cross-section of the front plug segment 10 is in the shape of a corrugated shape, a polygon, a racetrack shape, a fan shape, or an ellipse.

[0081] It should be noted that since the filling part is located inside the wrapping layer 11, the peripheral air channel is defined by the wrapping layer 11 and the outer packaging layer 40. Therefore, the cross-sectional shape of the front plug segment 10 can also be considered as the cross-sectional shape of the area enclosed by the wrapping layer 11.

[0082] The polygon may have any sides, and may be a regular polygon, or a polygon with unequal sides, etc. For example, it may be a regular 17-gon, a regular hexagon, or a regular pentagon.

[0083] The track shape refers to a shape similar to an athletics track, consisting of two semicircles of the same radius and two parallel straight sides alternately connected.

[0084] That is to say, the cross-section of the front plug segment 10 can be any non-circular shape, so that an outer peripheral air channel is defined and formed between the front plug segment 10 and the outer packaging layer 40 .

[0085] In one embodiment, the side wall of the front plug segment 10 is recessed to form an air groove, and the air groove extends along the axial direction of the front plug segment 10 .

[0086] It should be noted that the air groove 11a is formed on the wrapping layer 11, and 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 easy to change, so that the air groove 11a can be shaped.

[0087] An outer peripheral air channel is defined between the groove wall of the air groove and the outer packaging layer 40 .

[0088] In this embodiment, the outer wall of the front plug section 10 except the groove wall of the air groove can be connected to the inner wall of the outer packaging layer 40, so that the space of the air groove can basically be used as the space of the peripheral air channel.

[0089] It can be understood that in this embodiment, since the side wall of the front plug segment 10 is recessed to form an air groove, as long as the front plug segment 10 and the outer packaging layer 40 are assembled, the inner wall of the outer packaging layer 40 does not occupy all the space in the air groove, and a peripheral air channel will be defined between the inner wall of the outer packaging layer 40 and the groove wall of the air groove. Therefore, the front plug segment 10 of this embodiment can also be applied to the annular outer packaging layer 40.

[0090] The number of gas slots is not limited. It can be one or more. More than one refers to any number of two or more than two.

[0091] When there are multiple air grooves, the multiple air grooves are spaced apart along the circumference of the front plug section 10. Of course, they can be equally spaced apart or spaced apart at irregular intervals.

[0092] Since the peripheral wall of the front plug segment 10 is recessed to form an air groove, it is convenient for the aerosol generating product 100 to form a peripheral airway, which reduces the requirements for the outer packaging layer 40. In this way, the outer packaging layer 40 only needs to meet the size of the medium segment 20, and the structure of the outer packaging layer 40 is more unified, which reduces the production cost of the aerosol generating product 100. At the same time, the appearance of the aerosol generating product 100 is more beautiful.

[0093] In a specific embodiment, there are a plurality of air grooves, and each air groove is evenly distributed along the circumference of the front plug segment 10. In this way, the air flow can flow to the medium segment 20 relatively evenly.

[0094] It should be noted that the shape of the air groove is not limited. For example, in some embodiments, on a plane perpendicular to the axial direction of the front plug segment 10, the cross-section of the air groove is V-shaped, arc-shaped or polygonal.

[0095] Specifically, the cross-sectional shape of the air groove is V-shaped, which means that on a plane perpendicular to the axial direction of the front plug segment 10, the groove wall of the air groove is composed of two substantially straight sides.

[0096] The arc shape means that on a plane perpendicular to the axial direction of the front plug section 10, the groove wall of the air groove is composed of an edge that is roughly an arc line.

[0097] The polygon can be a rectangle or a trapezoid, etc.

[0098] In this embodiment, the shape of the air groove is relatively more regular, which facilitates the opening of the air groove.

[0099] Of course, the cross-section of the air groove is not limited to the above-mentioned shapes. The edges of the air groove can also be formed by a combination of various lines. In this way, an air groove with an irregular cross-section shape is formed on a plane perpendicular to the axial direction of the front plug section 10.

[0100] In some embodiments, the air groove extends linearly or spirally along the axial direction of the front plug segment 10 .

[0101] Specifically, the air groove extends along the axial straight line of the front plug segment 10. In this embodiment, the peripheral air channel formed between the front plug segment 10 and the outer packaging layer 40 also extends along the axial straight line of the front plug segment 10, and the airflow flows roughly along a straight line in the peripheral air channel, so that the peripheral air channel has a lower suction resistance.

[0102] The air groove extends in a spiral along the axial direction of the front plug segment 10. The spiral extension means that the extension direction of the air groove can be decomposed into a linear direction along the axial direction of the front plug segment 10 and a circumferential direction along the front plug segment 10. In this way, after the peripheral air channel is defined and formed between the air groove and the outer packaging layer 40, under the condition that the length of the front plug segment 10 along its axial direction is certain, the length of the peripheral air channel can be appropriately increased. In the case of condensation reflux of the aerosol, after reflux into the peripheral air channel, the risk of aerosol condensate reflux into the containing chamber of the aerosol generating device can be further reduced.

[0103] At the same time, after the airflow flows through the spirally extended peripheral airway to the medium section 20, a gas turbulence phenomenon can be formed inside the medium section 20, thereby improving the aerosol extraction efficiency.

[0104] In one embodiment, the material of the wrapping layer 11 includes at least one of polylactic acid, fiber paper, polyethylene, and polyethylene terephthalate.

[0105] On the one hand, the wrapping layer 11 of this material has a certain toughness, so that it can be wound around the filling part to obtain the front plug segment 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 segment 10, which is beneficial to improve the yield of the front plug segment 10.

[0106] In one embodiment, the thickness of the wrapping layer 11 ranges from 0.05 mm to 0.5 mm, for example, 0.05 mm, 0.1 mm, 0.15 mm, 0.18 mm, 0.2 mm, 0.25 mm, 0.27 mm, 0.3 mm, 0.35 mm, 0.4 mm, 0.45 mm, 0.46 mm or 0.5 mm, etc.

[0107] When the thickness of the wrapping layer 11 is less than 0.05mm, the wrapping layer 11 is relatively low in thickness and relatively weak in strength, and is prone to deformation after wrapping the internal filling part, and will result in weak processing capability of the front plug section 10, which will easily lead to problems such as reduced yield rate. When the thickness of the wrapping layer 11 is greater than 0.5mm, the thickness of the overlap after molding is large (the overlap is the overlap where the first and tail ends of the wrapping layer 11 are overlapped), which will result in a poor appearance of the front plug section 10 at the overlap. Therefore, by setting the thickness of the wrapping layer 11 to 0.05mm-0.5mm, the wrapping layer 11 can have a certain toughness and strength, while helping to improve the problem of large thickness at the overlap.

[0108] The material of the filling member 12 is not limited, for example, it can be various types of paper.

[0109] In the related art, the filling piece is made of polymer materials such as PLA (Polylactic acid), PET (Polyethyleneglycol terephthalate), and CA (Cellulose acetate). During use, the front plug section is prone to melting, condensation, collapse, etc. when in contact with the heating element, causing blockage of the channel inside the front plug section, hindering the airflow from passing through the channel to the medium section to extract the aerosol, resulting in a significant increase in the suction resistance of the aerosol-generating product during the suction process, and generating chemical impurities, which affects the consumer's user experience.

[0110] The filler 12 made of paper material can work normally at a temperature below 420°C during use, while the heating temperature of a general aerosol generating device is 200-320°C. Therefore, the filler 12 is not easy to melt or condense when in contact with the heating element, which reduces the probability of blocking the channel 10a inside the front plug section 10, thereby avoiding a significant increase in suction resistance during the suction process, and the paper material will not produce a chemical smell when heated. In addition, the filler 12 made of paper material has a good adsorption effect, and by folding the filler 12 made of paper material to form a pleated filling part, the adsorption effect of the filling part is further improved, which can further improve the adsorption performance of the aerosol during the backflow / backflow process.

[0111] In one embodiment, the filling member 12 is made of fiber paper.

[0112] The filler 12 made of fiber paper can provide the front plug segment 10 with good filling strength, which can improve the production qualification rate of the product in the subsequent processing. At the same time, it can also improve the connection strength between the front plug segment 10 and the medium segment 20, and improve the bending and breaking of the aerosol generating product 100 caused by insufficient connection strength during use.

[0113] In addition, during the heating process, the fiber smell generated by the fiber paper can be confined to the inside of the fiber paper, thereby improving the user experience.

[0114] In one embodiment, the grammage range of the fiber paper is 20 g / m 2 -140g / m 2 . For example, it can be 20g / m 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.

[0115] It should be noted that when the gram weight of the fiber paper is low, its processing performance is low, resulting in a relatively low yield of the front plug section 10, while when the gram weight is high, during subsequent use, the filling piece 12 produces heavier paper impurities, affecting the user experience.

[0116] In this embodiment, the weight of the fiber paper is controlled at 20 g / m 2 -140g / m 2 The range of the paper impurities can be reduced as much as possible under the premise of ensuring the processing performance of the fiber paper. That is, the yield of the front plug section 10 can be guaranteed, and the user experience can be better taken into account.

[0117] In one embodiment, please refer to Figure 8 and Fig. 9 The filling member 12 includes a base layer 121 and a hardening layer 122 which are stacked.

[0118] That is to say, the filling member 12 is a composite material, which uses paper as the base layer 121, and after the base layer 121 is covered with a hardening layer 122 and dried, it becomes a high-strength fiber paper.

[0119] The base layer 121 is made of paper material, so it is not easy to melt or condense. The hardening layer 122 is arranged on the base layer 121, so as to improve the structural strength of the filling member 12, thereby improving the production qualification rate of the product in the subsequent processing.

[0120] In addition, the filling piece 12 of this structure can also improve the connection strength between the front plug segment 10 and the medium segment 20, and improve the bending, breaking and other problems of the aerosol generating product 100 caused by insufficient connection strength during use by the user. During the heating process, the fiber impurities generated by the base layer 121 can be blocked by the hardening layer 122, and the fiber impurities can be confined to the inside of the filling piece 12, thereby improving the user experience.

[0121] In one embodiment, the material of the base layer 121 includes at least one of broadleaf fiber, coniferous fiber, hemp fiber, and bamboo fiber.

[0122] Broadleaf fiber, coniferous fiber, hemp fiber, and bamboo fiber are all natural or extracted products, and the raw materials are relatively abundant, which facilitates large-scale production of the base layer 121. At the same time, the base layer 121 made of such materials can be degraded after use by users, which is more environmentally friendly.

[0123] In one embodiment, the hardening layer 122 is constructed by mixing a hardening material and a solvent and then coating them on the surface of the base layer 121, and the hardening material includes at least one of cellulose, polysaccharides, polylactic acid, butylene terephthalate, and polyethylene terephthalate. The hardening layer 122 is constructed by mixing a hardening material and a solvent and then coating them on the surface of the base layer 121 and drying them.

[0124] Specifically, one or more materials selected from cellulose, polysaccharides, polylactic acid, butylene terephthalate, and polyethylene terephthalate are used as base materials, and are uniformly mixed in appropriate proportions according to target requirements to obtain a hardened material.

[0125] The solvent is a mixture of one or more of water, ethanol, glycerol, etc.

[0126] The hardening material and the solvent are mixed to obtain a uniform mixture. It is understood that the hardening material and the solvent can be mixed and matched in a single or multiple mixing ratios.

[0127] The hardening layer 122 is coated on the surface of the base layer 121 and then subjected to processes such as heating and air drying to obtain the filling piece 12, thereby improving the structural strength of the filling piece 12. The hardening layer 122 can block the fiber impurities generated by the base layer 121 to confine the fiber impurities to the inside of the filling piece 12, thereby improving the user experience.

[0128] In one embodiment, please refer to Figure 8 and Fig. 9 , the number of the base layer 121 and the number of the hardening layer 122 are both one layer; or, the number of the base layer 121 is one layer, the number of the hardening layer 122 is two layers, and the two hardening layers 122 are respectively stacked on both sides of the base layer 121 along the thickness direction.

[0129] It should be noted that whether the base layer 121 is coated with the hardened layer 122 on one side along the thickness direction or on both sides along the thickness direction can be determined based on the required strength of the filler 12. That is, the base layer 121 is coated with the hardened layer 122 on both sides along the thickness direction, so that the strength of the filler 12 is higher; if the base layer 121 is coated with the hardened layer 122 on one side along the thickness direction, the filler 12 meets the strength requirement, and the other side does not need to be coated with the hardened layer 122, which is conducive to cost control.

[0130] In addition, when the base layer 121 is made of low-lignin fiber such as cotton and linen, since the base layer 121 itself can generate less fiber impurities, a single-layer coating of the hardening layer 122 can be used to improve the strength of the filler 12. When the base layer 121 is made of medium- and high-lignin fiber paper such as broadleaf fiber and coniferous fiber, since the base layer 121 itself can generate more fiber impurities, the hardening layer 122 can be coated on both sides of the base layer 121 along its thickness direction, thereby improving the strength of the filler 12 and reducing the release of fiber impurities, that is, the fiber impurities can be confined to the inside of the filler 12, thereby improving the user experience.

[0131] In one embodiment, on a plane perpendicular to the axial direction of the front plug segment 10 , the maximum distance between two points on the outer periphery of the cross section of the front plug segment 10 is d.

[0132] It should be noted that the front plug segment 10 is matched with a cylinder, and the front plug segment 10 is placed in the cylinder. The diameter of the cylinder is shrunk until the front plug segment 10 cannot produce displacement in the horizontal plane in the cylinder. At this time, the diameter of the inner circle of the cylinder is d mentioned above. For example, based on the front plug segment 10 with an elliptical cross-sectional shape, d is the size of the major axis of the ellipse; based on the front plug segment 10 with a rectangular cross-sectional shape, d is the size of the diagonal line of the rectangle.

[0133] Exemplarily, the front plug segment 10 is cylindrical, and the diameter of the front plug segment 10 is d.

[0134] For some examples, see Figure 3 and Figure 4The number of the filler 12 is one, and the width of the filler 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.

[0135] It should be noted that, on a plane perpendicular to the axial direction of the front plug segment 10, the cross section of the filling member 12 appears as a continuous line (for example Figure 3 As shown), the width of the filler 12 is the total length of the line.

[0136] It should be noted that “2d” refers to a size whose width is 2 times d, and “60d” and the like are understood in the same way, that is, “60d” refers to a size whose width is 60 times d.

[0137] In this embodiment, on the one hand, the width of the filling piece 12 will not be less than 2d, thereby ensuring that there is a sufficient filling amount inside the wrapping layer 11 and reducing the probability of the filling piece 12 falling off from the wrapping layer 11, which is beneficial to ensuring the user experience; on the other hand, the width of the filling piece 12 will not be 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.

[0138] In addition, when the filling piece 12 is made of paper, the problem of using a large amount of paper in the front plug section 10 will not occur. During the user's use, the aerosol generating product 100 can effectively improve the problems of heavy paper impurities and poor user experience.

[0139] In some other embodiments, there are multiple fillers 12, and the sum of the widths of the fillers 12 ranges from 2d to 60d, such as 2d, 4d, 7d, 10d, 13d, 16d, 19d, 22d, 25d, 28d, 31d, 34d, 37d, 38d, 44d, 50d, 56d, 60d, etc.

[0140] For example, when there are multiple filling pieces 12, each filling piece 12 is bent to form a whole, that is, each layer of filling piece 12 is embossed to form a folded shape, and then multiple embossed filling pieces 12 are stacked to form a filling portion (for example Figure 5 Alternatively, a plurality of fillers 12 are stacked together, the overall thickness of the stacked fillers 12 being greater than the thickness of a single filler 12, and then the stacked fillers 12 are embossed to form a filling portion in a pleated shape (e.g. Figure 6 shown).

[0141] In this embodiment, on the one hand, the sum of the widths of the filling pieces 12 will not be less than 2d, thereby ensuring that the wrapping layer 11 has a sufficient filling amount and reducing the probability of the filling pieces 12 falling off from the wrapping layer 11, which is beneficial to ensuring the user experience; on the other hand, the sum of the widths of the filling pieces 12 will not be greater than 60d, that is, the wrapping layer 11 will not have a problem of excessive filling amount, thereby effectively controlling the suction resistance of the front plug section 10.

[0142] Similarly, when paper is used to make the filling piece 12, the problem of using a large amount of paper in the front plug section 10 will not occur. During the user's use, the aerosol generating product 100 can effectively improve the problems of heavy paper impurities and poor user experience.

[0143] Whether the filling piece 12 is selected as a single piece or multiple pieces can be confirmed by referring to the following:

[0144] It should be noted that the greater the compressibility, the better the elastic deformation performance of the filling piece 12 is, and the more it can recover to its original shape after use.

[0145] The compressibility of the filler 12 during use is determined (cross-sectional area deformation ratio). 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 use environment and restore its shape after use, thereby ensuring the consistency of the product 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, the filler 12 will undergo plastic deformation. Therefore, when the compressibility of the filler 12 during use is less than 0.75, a plurality of fillers 12 of the same specification or a plurality of base layers 121 and hardened layers 122 of different specifications can be used for molding to ensure the consistency of the appearance of the filler 12 before and after use, which is beneficial to improving the user experience.

[0146] In one embodiment, the filling rate of the filling member 12 in the wrapping layer 11 ranges from 10% to 98%, such as 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50%, 55%, 60%, 65%, 70%, 75%, 80%, 85%, 90%, 95%, 98%, etc.

[0147] Filling rate = ((sum of widths of each filling piece x thickness of the filling piece) - (width of the wrapping layer x thickness of the wrapping layer)) / cross-sectional area of ​​the front plug section.

[0148] See also Figures 2 to 4 The sum of the widths of the filling members × the thickness of the filling members refers to the sum of the cross-sectional areas of the filling members 12 on a plane perpendicular to the axial direction of the aerosol generating product 100 .

[0149] It can be understood that when the number of the filling piece 12 is one, the cross-sectional area of ​​one filling piece 12 is the sum of the cross-sectional areas of all the filling pieces 12 .

[0150] See also Figures 2 to 4 The wrapping layer width×wrapping layer thickness refers to the cross-sectional area of ​​the wrapping layer 11 on a plane perpendicular to the axial direction of the aerosol generating article 100 .

[0151] See also 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 article 100.

[0152] Alternatively, filling rate = (sum of widths of each filler × thickness of the filler) / cross-sectional area of ​​the area enclosed by the inner side wall of the wrapping layer.

[0153] See also Figures 2 to 4 The cross-sectional area of ​​the region enclosed by the inner side wall of the wrapping layer refers to the cross-sectional area of ​​the region enclosed by the inner side wall of the wrapping layer 11 on a plane perpendicular to the axial direction of the aerosol generating article 100 .

[0154] The specific value of the filling rate can be selected according to needs.

[0155] It should be noted that when the filling rate is too small, the strength of the front plug segment 10 during use is low, and the aerosol generating product 100 is prone to deformation, breakage, etc. during the inhalation process, which reduces the user's experience; when the filling rate is too large, the suction resistance of the front plug segment 10 during the inhalation process is large, which is not conducive to the user inhaling the aerosol.

[0156] The front plug section 10 of this embodiment controls the filling rate within the range of 10%-98%. The front plug section 10 has a relatively high structural strength and does not generate too much suction resistance.

[0157] In one embodiment, please refer to Figure 1 and Figure 2 The aerosol generating product 100 further includes a basic structure segment 30 , which is disposed at one end of the medium segment 20 away from the front plug segment 10 , and includes at least one of a cooling segment 31 , a filtering segment 32 and a supporting segment 33 .

[0158] Specifically, Figure 2As 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 arranged at one end of the medium section 20 axially away from the front plug section 10, one end of the cooling section 31 is arranged at one end of the support section 33 axially away from the medium section 20, and the filter section 32 is arranged at the other end of the cooling section 31. The support section 33 can connect and support the medium section 20 and the cooling section 31 at both ends, and 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 appropriate to avoid the problem of aerosol "burning the mouth".

[0159] Of course, the positions of the cooling section 31 and the supporting section 33 can also be exchanged, that is, the cooling section 31 is connected to one end of the medium section 20 away from the front plug section 10, and the two ends of the supporting section 33 are respectively connected to the other end of the cooling section 31 and the filtering section 32.

[0160] 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. The hollow paper tube structure and the hollow aluminum foil tube structure have good heat resistance, are not easily deformed by heat, and can still maintain their shape after receiving heat conduction, which can increase the structural stability of the aerosol generating product 100.

[0161] Of course, it can also be a hollow acetate fiber structure, a hollow aluminum foil tube structure, a hollow silicone structure, etc.

[0162] The cooling section 31 can be, for example, a cellulose acetate tube or an aluminum foil tube. In some embodiments, the cooling section 31 is formed with a porous structure inside. When the airflow carries the aerosol through the cooling section 31, a Venturi effect is formed (the Venturi effect refers to the phenomenon that the flow velocity of the fluid increases when the fluid passes through a reduced flow section, and the flow velocity is inversely proportional to the flow section). The aerosol can pass through the cooling section 31 more quickly, thereby extracting the aerosol more quickly. The cooling section 31 has a large specific surface area, which can achieve rapid cooling of the aerosol.

[0163] Of course, the cooling section 31 can also be a hollow acetate tube or a corrugated paper tube.

[0164] The overwrap layer 40 may wrap around the outer circumference of the chassis segment 30 .

[0165] It should be noted that, when the outer packaging layer 40 wraps the entire circumferential outer surface of the filter segment 32, the user can directly hold the outer packaging layer 40 in the mouth to use the aerosol; when the outer packaging layer 40 wraps part of the circumferential outer surface of the filter segment 32, the user can directly hold the filter segment 32 exposed outside the outer packaging layer 40 in the mouth to inhale the aerosol. Of course, the user can also install a suction nozzle outside the filter segment 32 and inhale the aerosol through the suction nozzle.

[0166] It should be noted that the outer packaging layer 40 can be a single layer, that is, a single outer packaging layer 40 wraps the medium segment 20 , the front plug segment 10 and the basic structure segment 30 at the same time.

[0167] Of course, the outer packaging layer 40 may also be multi-layered. Any one of the medium segment 20, the front plug segment 10 and the basic structure segment 30 may be wrapped by at least one outer packaging layer 40, and a multi-segment structure may be obtained after being wrapped separately; or at least two of the medium segment 20, the front plug segment 10 and the basic structure segment 30 may be wrapped by at least one outer packaging layer 40, and a multi-segment structure may be obtained after being wrapped separately, and the multi-segment structure may be further wrapped by one or more outer packaging layers 40 to obtain the aerosol generating product 100.

[0168] In one embodiment, please refer to Figure 1 and Figure 2 The length of the front plug section 10 is 1 / 12-1 / 3 of the length of the aerosol generating article 100. For example, 1 / 12, 1 / 11, 1 / 10, 1 / 9, 1 / 8, 1 / 7, 1 / 6, 1 / 5, 1 / 4, 1 / 3, etc.

[0169] On the one hand, the ratio of the axial dimension L1 of the front plug segment 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 segment 10 has a sufficiently long size to ensure the filtering and adsorption effect of the front plug segment 10 on the backflow or reflux aerosol, and ensure the cleaning effect in the containing chamber of the aerosol generating device. At the same time, the front plug segment 10 has a suitable size and is easy to process, that is, the processing performance is relatively good, which improves the yield rate of the front plug segment 10 in the production process.

[0170] On the other hand, the ratio of the axial dimension L1 of the front plug segment 10 to the axial dimension L2 of the aerosol generating product 100 is controlled within a range not greater than 1 / 3. In this way, the suction resistance generated by the front plug segment 10 during the aerosol inhalation process can be controlled within a suitable range, and the suction resistance of the front plug segment 10 will not be too large, that is, the impact on the user's aerosol inhalation process is small, effectively avoiding the problem of reduced user experience.

[0171] Further, in some embodiments, the ratio of the axial dimension L1 of the front plug segment 10 to the axial dimension L2 of the aerosol generating article 100100 is in the range of 1 / 10 to 1 / 4, such as 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. In this way, the front plug segment 10 has a more suitable size.

[0172] See also Fig.13In a third aspect, the present application provides a method for manufacturing a front plug segment 10. It should be noted that the manufacturing method can be applied to manufacture the front plug segment 10 of any embodiment of the present application.

[0173] The manufacturing method includes:

[0174] S100: embossing the filling piece to obtain a filling portion in a wrinkled shape.

[0175] S200: The filling part and the wrapping layer are gathered together to form a front plug section.

[0176] It should be noted that the manufacturing method of the front plug segment 10 of this embodiment is applicable to Figures 10 to 12 The production line of any embodiment.

[0177] Embossing is a processing technology that uses a concave and convex mold to form specific patterns and textures on the surface of the material. Under certain pressure and temperature, embossing can cause the material to deform, produce equidistant creases / cracks, and cause stress / elasticity in the paper during the crease process. After the paper is formed in the later stage, the stress and elasticity generated allow the filler 12 to be evenly distributed inside the wrapping layer 11.

[0178] See also Figures 10 to 12 The production line includes an embossing device 3 and a gathering device 4.

[0179] The base paper material 1 is processed to become a filling member 12. After passing through the embossing device 3, creases are generated on the filling member 12, and a filling portion in a wrinkled shape is obtained.

[0180] The filling portion and the wrapping layer paper material 2 enter into the gathering device 4 , and are gathered and formed into a front plug section 10 .

[0181] In one embodiment, the filling portion and the wrapping layer are gathered together to form a front plug section, which specifically includes:

[0182] The filling portion and the wrapping layer are gathered together to form a desired shape, such as a cylindrical structure or a non-cylindrical structure, to obtain a filling portion in a pleated shape.

[0183] It should be noted that the manufacturing method of the front plug segment of this embodiment is suitable for Fig.11 or Fig.12 The production line shown.

[0184] That is to say, in this embodiment, the filling portion is gathered into a filling portion in a pleated shape, and the wrapping layer 11 then covers the periphery of the filling portion to achieve shaping. In this way, the front plug section 10 has lower requirements on the structural strength of the wrapping layer 11, and the range of material selection for the wrapping layer 11 is wider.

[0185] The material of the filling member 12 is not limited, for example, it can be various types of paper.

[0186] In the related art, the filling piece is made of polymer materials such as PLA (Polylactic acid), PET (Polyethyleneglycol terephthalate), and CA (Cellulose acetate). During use, the front plug section is prone to melting, condensation, collapse, etc. when in contact with the heating element, causing blockage of the channel inside the front plug section, hindering the airflow from passing through the channel to the medium section to extract the aerosol, resulting in a significant increase in the suction resistance of the aerosol-generating product during the suction process, and generating chemical impurities, which affects the consumer's user experience.

[0187] The filler 12 made of paper material can work normally at a temperature below 420°C during use, while the heating temperature of a general aerosol generating device is 200-320°C. Therefore, the filler 12 is not easy to melt or condense when in contact with the heating element, which reduces the probability of blocking the channel 10a inside the front plug section 10, thereby avoiding a significant increase in suction resistance during the suction process, and the paper material will not produce a chemical smell when heated. In addition, the filler 12 made of paper material has a good adsorption effect, and by folding the filler 12 made of paper material to form a pleated filling part, the adsorption effect of the filling part is further improved, which can further improve the adsorption performance of the aerosol during the backflow / backflow process.

[0188] In one embodiment, the filling member 12 is made of fiber paper.

[0189] The filler 12 made of fiber paper can provide the front plug segment 10 with good filling strength, which can improve the production qualification rate of the product in the subsequent processing. At the same time, it can also improve the connection strength between the front plug segment 10 and the medium segment 20, and improve the bending and breaking of the aerosol generating product 100 caused by insufficient connection strength during use.

[0190] In addition, during the heating process, the fiber smell generated by the fiber paper can be confined to the inside of the fiber paper, thereby improving the user experience.

[0191] In one embodiment, the grammage range of the fiber paper is 20 g / m 2 -140g / m 2 . For example, it can be 20g / m 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.

[0192] It should be noted that when the gram weight of the fiber paper is low, its processing performance is low, resulting in a relatively low yield of the front plug section 10, while when the gram weight is high, during subsequent use, the filling piece 12 produces heavier paper impurities, affecting the user experience.

[0193] In this embodiment, the weight of the fiber paper is controlled at 20 g / m 2 -140g / m 2 The range of the paper impurities can be reduced as much as possible under the premise of ensuring the processing performance of the fiber paper. That is, the yield of the front plug section 10 can be guaranteed, and the user experience can be better taken into account.

[0194] In one embodiment, the filling portion and the wrapping layer 11 are gathered together to form a front plug section 10, which specifically includes:

[0195] It should be noted that the manufacturing method of the front plug segment of this embodiment is suitable for Figures 10 to 12 The production line of any embodiment.

[0196] That is to say, in this embodiment, the filling portion is wrapped by the wrapping layer 11 , and the filling portion is restricted by the shape of the wrapping layer 11 , so that the filling portion is gathered under the restriction of the wrapping layer 11 .

[0197] In this embodiment, a wrapping layer 11 with greater hardness can be selected, such as corrugated paper. In this way, during the process of gathering and forming, the probability of the wrapping layer 11 being damaged or the like is reduced.

[0198] The filling portion is wrapped with the wrapping layer 11, which reduces the shaping requirements of the filling portion. The filling portion only needs to be wrapped by the wrapping layer 11 and deformed.

[0199] The manufacturing method of the front plug segment 10 of the embodiment of the present application is to first emboss the filling piece 12 to obtain a filling portion in a wrinkled shape. Then the filling portion and the wrapping layer 11 are gathered together to form the front plug segment 10. In other words, the front plug segment 10 is composed of the wrapping layer 11 and the filling portion, and the filling portion is embossed by the layered filling piece 12, and is in a wrinkled shape. The filling portion is arranged in the wrapping layer 11 to construct a channel 10a extending from one end of the front plug segment 10 to the other end in the wrapping layer 11. The external airflow can flow to the medium segment 20 through the channel 10a, thereby reducing the suction resistance generated by the front plug segment 10 to the aerosol, and thus improving the user experience. In other words, after the front plug segment 10 of the embodiment of the present application is used in the aerosol generating product 100, it can reduce the probability of the medium segment 20 falling off from the outer packaging layer 40, and at the same time, the front plug segment 10 will not produce too much suction resistance to the aerosol suction. In addition, after the puffing is completed, the negative pressure generated in the containing chamber during the puffing process will cause the aerosol to flow back / into the chamber, and the pleated filling portion has a better adsorption effect, which can adsorb the aerosol in the process of backflow / into the chamber, which is conducive to improving the problem of the containing chamber being contaminated by aerosols and difficult to clean, and is conducive to improving the problem of cross-flavoring that may occur when puffing aerosol-generated products 100 with different flavors.

[0200] In one embodiment, before embossing the filling piece to obtain a filling portion in a wrinkled form, the manufacturing method includes:

[0201] The hardening material and the solvent are mixed and then coated on the surface of the base layer 121 to form the filling member 12 .

[0202] It should be noted that the manufacturing method of the front plug segment 10 of this embodiment is suitable for Fig.11 or Fig.12 The production line shown.

[0203] Here, please see Figure 8 and Fig. 9 The filling member 12 includes a base layer 121 and a hardening layer 122 which are stacked.

[0204] That is to say, the filling member 12 is a composite material, which uses paper as the base layer 121, and after the base layer 121 is covered with a hardening layer 122 and dried, it becomes a high-strength fiber paper.

[0205] The base layer 121 is made of paper material, so it is not easy to melt or condense. The hardening layer 122 is arranged on the base layer 121, so as to improve the structural strength of the filling member 12, thereby improving the production qualification rate of the product in the subsequent processing.

[0206] In addition, the filling piece 12 of this structure can also improve the connection strength between the front plug segment 10 and the medium segment 20, and improve the bending, breaking and other problems of the aerosol generating product 100 caused by insufficient connection strength during use by the user. During the heating process, the fiber impurities generated by the base layer 121 can be blocked by the hardening layer 122, and the fiber impurities can be confined to the inside of the filling piece 12, thereby improving the user experience.

[0207] In one embodiment, the material of the base layer 121 includes at least one of broadleaf fiber, coniferous fiber, hemp fiber, and bamboo fiber.

[0208] Broadleaf fiber, coniferous fiber, hemp fiber, and bamboo fiber are all natural or extracted products, and the raw materials are relatively abundant, which facilitates large-scale production of the base layer 121. At the same time, the base layer 121 made of such materials can be degraded after use by users, which is more environmentally friendly.

[0209] See also Fig.11 and Fig.12 A spray device 7 is arranged downstream of the base layer paper material 1, and the mixed material of the hardening layer 122 can be evenly coated on the base layer 121 through the spray device 7 (it can be coated on the base layer paper material 1 on the production line), and the hardening layer 122 can better coat the side of the base layer 121 in the thickness direction.

[0210] In one embodiment, please refer to Figure 8 and Fig. 9 , the number of the base layer 121 and the number of the hardening layer 122 are both one layer; or, the number of the base layer 121 is one layer, the number of the hardening layer 122 is two layers, and the two hardening layers 122 are respectively stacked on both sides of the base layer 121 along the thickness direction.

[0211] It should be noted that whether the base layer 121 is coated with the hardened layer 122 on one side along the thickness direction or on both sides along the thickness direction can be determined based on the required strength of the filler 12. That is, the base layer 121 is coated with the hardened layer 122 on both sides along the thickness direction, so that the strength of the filler 12 is higher; if the base layer 121 is coated with the hardened layer 122 on one side along the thickness direction, the filler 12 meets the strength requirement, and the other side does not need to be coated with the hardened layer 122, which is conducive to cost control.

[0212] In addition, when the base layer 121 is made of low-lignin fiber such as cotton and linen, since the base layer 121 itself can generate less fiber impurities, a single-layer coating of the hardening layer 122 can be used to improve the strength of the filler 12. When the base layer 121 is made of medium- and high-lignin fiber paper such as broadleaf fiber and coniferous fiber, since the base layer 121 itself can generate more fiber impurities, the hardening layer 122 can be coated on both sides of the base layer 121 along its thickness direction, thereby improving the strength of the filler 12 and reducing the release of fiber impurities, that is, the fiber impurities can be confined to the inside of the filler 12, thereby improving the user experience.

[0213] In one embodiment, before the hardening material and the solvent are mixed and coated on the surface of the base layer 121 to form the filling member 12, the manufacturing method includes:

[0214] Mixing one or more of cellulose, polysaccharide, polylactic acid, butylene terephthalate, and polyethylene terephthalate to obtain a hardened material;

[0215] One or more of water, ethanol and glycerol are mixed to obtain a solvent.

[0216] It should be noted that there is no restriction on the order of obtaining the hardening material and the solvent. One step may be completed first, and then the other step; or both steps may be performed simultaneously. The hardening material and the solvent are uniformly mixed to obtain a mixed material of the hardened layer 122 .

[0217] The hardening material and the solvent are mixed to obtain a uniform mixture. It is understood that the hardening material and the solvent can be mixed and matched in a single or multiple mixing ratios.

[0218] In one embodiment, after the hardening material and the solvent are mixed and coated on the surface of the base layer 121 to form the filling member 12 , the manufacturing method includes: heating and drying the filling member 12 .

[0219] It should be noted that the manufacturing method of the front plug segment 10 of this embodiment is suitable for Fig.11 The production line shown.

[0220] See also Fig.11 The drying device 6 is arranged downstream of the spraying device 7 and upstream of the gathering device 4. After the mixed material of the hardening layer 122 is coated on the base layer paper material 1, the filling member 12 is heated and dried by the drying device 6. The mixed material of the hardening layer 122 can be quickly dried and shaped. Therefore, the range of the amount of solvent added is wider and the quality of the later product is easier to control.

[0221] In one embodiment, after the filling portion and the wrapping layer 11 are gathered together to form the front plug segment 10 , the manufacturing method includes: heating and drying the front plug segment 10 .

[0222] It should be noted that the manufacturing method of the front plug segment 10 of this embodiment is suitable for Fig.12 The production line shown.

[0223] See also Fig.12 The drying device 6 is located downstream of the gathering device 4. The base layer paper material 1 is embossed and gathered with the wrapping layer paper material 2 to form, and then heated and dried. This implementation path is adopted when the hardening material is more volatile or the amount of solvent added is high. Since the proportion of hardening material is small, it can be directly volatilized and formed, and the shape is better fixed after direct forming.

[0224] In one embodiment, the drying temperature of the heat 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.

[0225] The drying device 6 can be manually controlled or automatically controlled to control the drying temperature within the range.

[0226] The drying temperature is controlled between 80°C and 140°C, and within this temperature range, the drying temperature is more suitable. That is to say, the drying temperature will not be too low, so as to ensure the drying efficiency and improve the processing efficiency; of course, the drying temperature will not be too high, so as to reduce the probability of cracking of the hardened layer 122 and burning of the paper during the drying process, and improve the product yield.

[0227] In one embodiment, after the filling portion and the wrapping layer 11 are gathered together to form the front plug section 10, the manufacturing method includes:

[0228] The front plug section 10 is cut.

[0229] It should be noted that the manufacturing method of the front plug segment 10 of this embodiment is suitable for Figures 10 to 12 The production line of any embodiment.

[0230] See also Figures 10 to 12 The front plug segment 10 can be cut by the cutting device 5 so that the front plug segment 10 reaches a set length. In this way, the front plug segment 10 with a set length can be suitable for the use requirements of the aerosol generating product 100.

[0231] It is understandable that the specific value of the set length is not limited, and the set length can be set according to the use requirements of the aerosol generating product 100.

[0232] The slitting device 5 generally comprises a slitting tool, which slits the front plug segment 10 by physical contact or non-physical contact.

[0233] Physical contact means that the front plug segment 10 is cut by direct contact between the cutting tool and the front plug segment 10. For example, the cutting tool can be a rotating hob, a cutting blade, a cutting wire, a roller cut or an extruder.

[0234] Non-physical contact means that the slitting tool does not need to directly contact the front plug segment 10 to slit the front plug segment 10. For example, the slitting tool releases laser, plasma, air knife or water knife to cut the front plug segment 10 by laser, plasma, air knife or water knife.

[0235] The following three specific embodiments are used to illustrate:

[0236] First embodiment

[0237] Methyl cellulose, tamarind polysaccharide, and PLA (Polylactic acid) are mixed in a ratio of 55:25:20 and placed in warm water at 60°C. After stirring and mixing, a mixed material of the hardened layer 122 is obtained. The mixed material of the hardened layer 122 is then coated to a thickness of 60 g / m 2 The surface of the base paper 1 made of broadleaf fiber material is dried at 110°C to a suitable moisture content to obtain the required filling piece 12, and then the filling piece 12 is cut to 4d times the width (28mm), embossed and gathered into shape, and then wrapped with a 0.2mm wrapping layer 11 on the outer layer to obtain a front plug section 10 with a size of d=7mm.

[0238] The manufacturing method of the front plug segment 10 of this embodiment is applicable to Fig.12 The production line shown.

[0239] Second embodiment

[0240] Microcrystalline cellulose, pullulan, and sodium alginate are mixed in a ratio of 65:20:15 and placed in 60° C. ethanol, and stirred to obtain a mixed material of the hardened layer 122. The mixed material of the hardened layer 122 is then coated to a thickness of 40 g / m 2 The surface of the base paper 11 made of hemp pulp fiber material is dried at 90°C to a suitable moisture content to obtain the required filling piece 12, and then the filling piece 12 is cut to 35d times the width (280mm), embossed and gathered into shape, and then wrapped with a 0.4mm wrapping layer 11 on the outer layer to obtain a front plug section 10 with d=8mm.

[0241] The manufacturing method of the front plug segment 10 of this embodiment is applicable to Fig.12 The production line shown.

[0242] Third embodiment

[0243] Microcrystalline cellulose, carboxymethyl cellulose, and coagulated polysaccharide are placed in a 70° C. aqueous solution at a ratio of 75:20:5, and stirred to obtain a mixed material of the hardened layer 122. The mixed material of the hardened layer 122 is coated on a 65 g / m 2 The surface of the base paper 11 made of bamboo fiber material is used to obtain the filling piece 12. The filling piece 12 is then embossed and gathered and then wrapped with a 0.6 mm wrapping layer 11 on the outer layer, and dried at 110° C. to obtain a front plug section 10 with a diameter of 7.8 mm.

[0244] The manufacturing method of the front plug segment 10 of this embodiment is applicable to Fig.11 The production line shown.

[0245] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application is described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A front plug section, applied to an aerosol generating product, characterized in that: The front plug section includes a wrapping layer and a filling portion. The filling portion is formed by multiple bending of a layered filling piece and is in a pleated form. The filling portion is arranged in the wrapping layer to construct a channel extending from one end of the front plug section to the other end in the wrapping layer.

2. The front plug section according to claim 1, characterized in that: The front plug section is cylindrical, and the diameter of the front plug section is d; The number of the filler is one, and the width of the filler is in the range of 2d-60d; or, There are multiple fillers, and the sum of the widths of the fillers is in the range of 2d-60d.

3. The front plug section according to claim 1, characterized in that: The filler is made of fiber paper, and the weight of the fiber paper is in the range of 20 g / m 2 -140g / m 2 .

4. The front plug section according to claim 1, characterized in that: The filling member includes a base layer and a hardening layer which are stacked.

5. The front plug section according to claim 4, characterized in that: The number of the base layer and the number of the hardening layer are both one; or, the number of the base layer is one, the number of the hardening layer is two, and the two hardening layers are respectively stacked on both sides of the base layer along the thickness direction.

6. The front plug section according to claim 4, characterized in that: The material of the base layer includes one of broadleaf fiber, coniferous fiber, hemp fiber and bamboo fiber.

7. The front plug section according to claim 4, characterized in that: The hardening layer is formed by coating a hardening material and a solvent mixed together on the surface of the base layer. The hardening material includes one of cellulose, polysaccharide, polylactic acid, butylene terephthalate and polyethylene terephthalate.

8. The front plug section according to claim 1, characterized in that: The material of the wrapping layer includes one of polylactic acid, fiber paper, polyethylene, and polyethylene terephthalate.

9. The front plug section according to claim 1, characterized in that: The thickness of the wrapping layer is in the range of 0.05 mm to 0.5 mm.

10. The front plug section according to claim 1, characterized in that: The filling rate of the filling piece in the wrapping layer ranges from 10% to 98%.

11. An aerosol generating article, the aerosol generating article having a distal lip end and a proximal lip end, characterized in that: include: A medium segment, used for generating aerosol; The front plug segment described in any one of claims 1 to 10 is arranged at one end of the medium segment and is located at the distal lip end of the aerosol generating article.

12. An aerosol-generating article according to claim 11, characterized in that The aerosol generating product further comprises a basic structure segment, which is arranged at one end of the medium segment away from the front plug segment, and the basic structure segment comprises at least one of a supporting segment, a filtering segment and a cooling segment.

13. The aerosol-generating article of claim 11, wherein: The length of the front plug section is 1 / 12-1 / 3 of the length of the aerosol generating article.

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