Aerosol generating product

Abstract

The invention provides an aerosol generating product which comprises a suction section and a matrix section which are communicated with each other, the suction section is arranged at the near end of the aerosol generating product, the matrix section is arranged at the far end of the aerosol generating product, and the aerosol generating product further comprises a wrapping element, the wrapping element wraps the suction section, the matrix section and a connecting area between the suction section and the matrix section, and the wrapping element partially seals the end part of the aerosol-generating product far away from the suction section, so that the air permeability of the aerosol-generating product reaches at least 60%. According to the invention, the end part of the aerosol generating product is partially closed creatively by virtue of the elaborately designed wrinkle structure at the end part of the wrapping paper. Due to the unique design, the wrapping paper plays a role in wrapping, and meanwhile, the sealing performance of the surface and the end of the aerosol generating product is integrally enhanced.

Description

Technical Field

[0001] The present application belongs to the field of novel tobacco, and specifically relates to an aerosol generating product. Background Art

[0002] Aerosol-generating products are novel tobacco products used in conjunction with heating devices. Unlike traditional cigarettes, which produce smoke through combustion, aerosol-generating products use heating devices (usually to around 350°C) to heat the aerosol-generating matrix within the aerosol-generating product, releasing nicotine and other ingredients to satisfy consumers' puffing experience. The aerosol-generating matrix in aerosol-generating products typically contains tobacco, propylene glycol, glycerol, flavoring substances, and other binders.

[0003] In the structural design of aerosol-generating products, overall sealing is crucial. However, some aerosol-generating products currently on the market suffer from unsealed or poorly sealed bottoms. The bottom of the product is often a critical point of contact with components such as the heater or power source, and is a crucial link in the aerosol generation and transmission process. Summary of the Invention

[0004] In view of this, the purpose of this application is to provide an aerosol generating product to solve the above problems.

[0005] In order to solve the above technical problems, this application adopts the following technical solutions:

[0006] The present application provides an aerosol-generating article, comprising a suction section and a substrate section that are interconnected, wherein the suction section is disposed at a proximal end of the aerosol-generating article, and the substrate section is disposed at a distal end of the aerosol-generating article. The aerosol-generating article further comprises: a wrapping element, wherein the wrapping element wraps the suction section, the substrate section, and a connecting region between the suction section and the substrate section, and the wrapping element partially seals an end of the aerosol-generating article away from the suction section, such that the air permeability of the aerosol-generating article reaches at least 60%. The aerosol air permeability is calculated according to the following formula:

[0007]

[0008] Where P is the air permeability, S1(N,r) is the air permeability area of an N-sided polygon with a circumscribed circle of radius r at the end of the aerosol-generating article, and s2 is the air permeability area per unit length of the partially enclosed crease.

[0009] Furthermore, the wrapping element comprises wrapping paper, the end of which is folded inwardly to form a pleated structure, and the pleated structure is used to partially seal the end of the aerosol generating article away from the inhalation section.

[0010] Furthermore, the aerosol generating product further includes a middle section, which is arranged between the suction section and the matrix section. An air inlet is provided on the surface of the middle section, and the air inlet is circumferentially arranged around the middle section.

[0011] Furthermore, the air inlet is a circular air inlet, and the aperture diameter of the circular air inlet is 0.1 mm.

[0012] Furthermore, a plurality of air guide holes are provided in the longitudinal direction of the middle section, and the air guide holes are arranged at intervals.

[0013] Furthermore, the aerosol generating product also includes an intermediate section, which includes a first intermediate section and a second intermediate section. The first intermediate section and the second intermediate section are abutted against each other, the pore size of the first intermediate section is smaller than the pore size of the second intermediate section, the first intermediate section is close to the matrix section, and the second intermediate section is close to the suction section.

[0014] Furthermore, an air inlet is provided on the surface of the second middle section, and the air inlet is circumferentially arranged around the second middle section.

[0015] Furthermore, the aerosol generating product further comprises a filling section, which is arranged between the suction section and the matrix section, and is used to adjust the mouthfeel of the aerosol.

[0016] Furthermore, the aerosol generating article further comprises a filling section, which is arranged at the distal end of the matrix section, and the distal end of the filling section is closed by the wrapping element.

[0017] Furthermore, the circumferential position of the end of the filling segment is used to support the matrix segment.

[0018] Among them, the aerosol-generating article is a smoking article comprising an aerosol-forming substrate which, upon heating, generates an aerosol which is directly inhalable into the lungs of a user through the user's mouth.

[0019] Preferably, the aerosol-forming substrate is a solid aerosol-forming substrate.The aerosol-forming substrate may comprise both solid and liquid components.

[0020] Preferably, the aerosol-forming substrate comprises nicotine.In some preferred embodiments, the aerosol-forming substrate comprises tobacco.

[0021] For example, the aerosol-forming material may be formed from a sheet of homogenised tobacco.

[0022] Alternatively or additionally, the aerosol-forming substrate may comprise a tobacco-free aerosol-forming material.For example, the aerosol-forming material may be a sheet comprising nicotine salt and an aerosol-former.

[0023] Optionally, the solid aerosol-forming substrate can be disposed on or embedded within a heat-stable carrier. The carrier can be in the form of a powder, granule, pellet, fragment, strip, bar or sheet. The solid aerosol-forming substrate can be disposed on the surface of the carrier in the form of, for example, a sheet, foam, gel or slurry. The solid aerosol-forming substrate can be placed over the entire surface of the carrier, or alternatively, can be arranged in a pattern so as to provide non-uniform flavor delivery during use.

[0024] In this patent, a homogeneous tobacco material refers to a material formed by aggregating particulate tobacco.

[0025] Preferably, the aerosol-forming substrate comprises an aggregated textured sheet of homogeneous tobacco material.

[0026] In this patent, a textured sheet refers to a sheet that has been curled, embossed, imprinted, perforated or otherwise deformed. The aerosol-forming substrate can comprise an aggregated textured sheet of homogeneous tobacco material, which comprises a plurality of spaced-apart notches, protrusions, perforations or combinations thereof. Preferably, the aerosol-forming substrate comprises an aggregated curled sheet of homogeneous tobacco material. The use of a textured sheet of homogeneous tobacco material can advantageously facilitate the aggregation of sheets of homogeneous tobacco material to form the aerosol-forming substrate.

[0027] An aerosol-generating device is used to illustrate a device that interacts with the aerosol-forming substrate of an aerosol-generating article to generate an aerosol. Preferably, the aerosol-generating device is a smoking device that interacts with the aerosol-forming substrate of the aerosol-generating article to generate an aerosol that is directly inhalable by a user through the user's mouth into the user's lungs. The aerosol-generating device can be a holder for a smoking article.

[0028] The power source can be any suitable power source, such as a direct current voltage source, such as a battery. In one embodiment, the power source is a lithium-ion battery. Alternatively, the power source can be a nickel-metal hydride battery, a nickel-cadmium battery or a lithium-based battery, such as a lithium cobalt, lithium iron phosphate, lithium titanate or lithium polymer battery.

[0029] The control element can be a simple switch. Alternatively, the control element can be a circuit and can include one or more microprocessors or microcontrollers.

[0030] An aerosol-generating system can include an aerosol-generating device and one or more aerosol-generating articles, the aerosol-generating device being configured to receive the aerosol-generating articles in a corresponding number of heating chambers.

[0031] As can be seen from the above technical solutions, the advantages and positive effects of the aerosol-generating article proposed in this application are as follows:

[0032] This application innovatively utilizes a carefully designed pleated structure at the end of the wrapping paper to partially or completely seal the end of the aerosol-generating article. This unique design allows the wrapping paper to not only perform its wrapping function but also integrally enhance the sealing properties of the surface and end of the aerosol-generating article.

[0033] This pleated structure significantly enhances the sealing of the aerosol-generating article, effectively preventing the aerosol matrix from falling into the aerosol-generating device. This allows users to enjoy a smoother and more stable puffing experience without worrying about the inconvenience and annoyance caused by matrix falling out, significantly improving the overall user experience of the aerosol-generating article and aerosol-generating device, delivering superior sensory quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The above content of this application and the following specific embodiments will be better understood when read in conjunction with the accompanying drawings. It should be noted that the accompanying drawings are only examples of the technical solutions claimed.

[0035] Figure 1 It is the aerosol generating device provided by this application;

[0036] Figure 2 is a structural diagram of the aerosol-generating article of Example 1;

[0037] Figure 3 is a diagram of a first wrinkle structure formed by the wrapping paper of the aerosol generating article;

[0038] Figure 4 is a diagram of a second fold structure formed by the wrapping paper of the aerosol generating article;

[0039] Figure 5 is a structural diagram of a middle section of an aerosol generating article;

[0040] Figure 6 is a structural diagram of the end portion of the filling section of the aerosol generating article;

[0041] Figure 7 is a structural diagram of the aerosol-generating article of Example 2;

[0042] Figure 8 is a simplified structural diagram of the aerosol generating article of Example 3;

[0043] Figure 9 is a structural diagram of the filling section of the aerosol-generating article of Example 3;

[0044] Figure 10 3 is a structural diagram of the middle section of the aerosol-generating article of Example 3.

[0045] The reference numerals are described as follows:

[0046] Aerosol generating device: 10;

[0047] Heating component: 11;

[0048] Power supply: 12;

[0049] Control component: 13;

[0050] Heating chamber: 14;

[0051] Aerosol generating article: 20;

[0052] Suction section: 21;

[0053] Matrix section: 22;

[0054] Wrapping element: 23;

[0055] Folded structure: 24;

[0056] Intermediate section: 25;

[0057] First intermediate section: 251;

[0058] Second intermediate section: 252;

[0059] Air inlet: 26;

[0060] Air guide port: 27;

[0061] Partition structure: 271;

[0062] Filling section: 28;

[0063] Ventilation partition: 29. Detailed implementation manners

[0064] The detailed features and advantages of the present application will be described in detail in the following detailed implementation manners. The content is sufficient for any person skilled in the art to understand the technical content of the present application and implement it accordingly. And according to the description, claims and drawings disclosed in this specification, those skilled in the art can easily understand the relevant purposes and advantages of the present application.

[0065] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0066] In the description of this embodiment, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "bottom", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product is usually placed during use. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application.

[0067] To make the objectives, technical solutions and advantages of the present application clearer, the embodiments of the present application will be described in further detail below with reference to the drawings.

[0068] Please refer to Figure 1 , the present application provides an aerosol generating device 10, which may include: a heating chamber 14, a power source 12, a heating component 11, and a control component 13. The heating component 11 is used to heat the aerosol generating article 20 accommodated in the heating chamber 14 during operation to generate aerosol, and the control component 13 is used to generate a control signal and control the power source 12 to supply electrical energy to the heating component 11 according to the control signal.

[0069] The heating chamber 14 is the heating space for the aerosol generating article 20, and its internal environment is calculated to ensure that the matrix can be uniformly and efficiently converted into aerosol during the heating process. The power source 12 module is like the power source of the aerosol generating device 10, continuously supplying electrical energy to the entire system, and its stability and efficiency directly affect the heating effect.

[0070] The heating component 11 is responsible for converting electrical energy into heat energy to heat the aerosol generating article 20. It adopts advanced heating technologies and materials, can accurately control the temperature while quickly raising the temperature, and avoid overheating from damaging the matrix, thereby retaining the flavor and taste of the matrix. Among them, the heating component 11 can be an internal heating component 11, an external heating component 11, or a heating component 11 combining internal heating and external heating. The present application is not limited thereto.

[0071] Internal heating means that the heating element is at least partially positioned inside the aerosol generating article 20 to directly heat the aerosol generating matrix. The internal heating method is achieved by designing a specific heating tube or heating element. For example, a heating cavity is formed inside the heating tube to accommodate the aerosol generating matrix, and a heating layer is provided on the outer or inner side of the heating tube, generating heat through energization to heat the matrix. Additionally, auxiliary structures such as a heat dissipation layer and a dielectric layer can be added as needed to improve the heating uniformity and efficiency. Since the heating element is in closer contact with the matrix, the required heating temperature can be reached faster. The internal heating method can directly heat the aerosol generating matrix, improving the heating efficiency.

[0072] External heating means that the heating element is positioned outside the aerosol - generating article 20, and heats the matrix by means such as heat conduction or radiation. External heating usually involves designing a specific heating cavity or tubular body for accommodating the aerosol - generating article 20. The heating element (such as a heating element, a planar spiral coil, etc.) is arranged outside the heating cavity or tubular body. The external heating method also incorporates structures such as a heat - insulating tube, a support frame, etc., to improve the uniformity and stability of heating. The external heating method can avoid direct contact between the heating element and the aerosol - generating matrix, reducing the contamination and damage of the matrix to the heating element. By reasonably designing the heating cavity and the heat - insulating structure, uniform heating of the matrix can be achieved, improving the quality of aerosol generation.

[0073] The control component 13 is the intelligent control center of the entire aerosol - generating device 10. It can adjust the heating operating parameters of the aerosol - generating device 10 by generating control signals, such as the target temperature, heating time, etc., and regulate the amount of electrical energy delivered by the power supply 12 to the heating component 11 to achieve precise temperature control.

[0074] Please refer to Figure 2 , this application provides an aerosol - generating article 20, which can be applied to the above - mentioned aerosol - generating device 10.

[0075] The aerosol - generating article 20 includes a suction section 21, a matrix section 22, and a wrapping element 23 that are interconnected. The suction section 21 is arranged at the proximal end of the aerosol - generating article 20, and the matrix section 22 is arranged at the distal end of the aerosol - generating article 20.

[0076] The suction section 21 can also be referred to as the atomization section. The atomization section is mainly composed of tobacco substances and can be a homogenized tobacco sheet, a disordered tobacco flake, or tobacco particles.

[0077] Furthermore, the atomization section also includes a binder, an aerosol - forming agent, a plasticizer, a flavor, an aqueous solvent, a non - aqueous solvent, and combinations thereof. The length is preferably more than 5 mm, and more preferably 5 - 15 mm.

[0078] The binder plays a role in binding the various components together in the aerosol - generating article 20, ensuring the structural stability and integrity of the article 20. It helps to maintain the uniform distribution of the components in the atomization section, preventing the separation or shedding of components during use.

[0079] Exemplarily, the binder includes, but is not limited to, gums such as guar gum, xanthan gum, gum arabic, and locust bean gum; cellulose binders such as hydroxypropyl cellulose, carboxymethyl cellulose, hydroxyethyl cellulose, methyl cellulose, and ethyl cellulose; polysaccharides such as starch; organic acids such as alginic acid; conjugate base salts of organic acids such as sodium alginate, agar, and pectin; and combinations thereof.

[0080] The aerosol former is one of the core components in the aerosol generating article 20, and it helps to promote and stabilize the formation of aerosol during use. Common aerosol formers include polyols (such as glycerol, propylene glycol, etc.) and their esters, fatty acid esters, etc. These compounds can generate aerosol when heated, providing the user with the desired inhalation experience.

[0081] Exemplarily, the aerosol former includes but is not limited to: polyols, such as propylene glycol, triethylene glycol, 1,3 - butanediol, and glycerol; esters of polyols, such as glycerol mono-, di- or triacetate; and fatty acid esters of mono-, di- or polycarboxylic acids, such as dimethyl dodecanedioate and dimethyl tetradecanedioate. The aerosol former can be a combination of one or more aerosol formers. The preferred aerosol former is a polyol or a mixture thereof, such as propylene glycol, triethylene glycol, 1,3 - butanediol, and most preferably glycerol. The aerosol former preferably accounts for more than 10% of the dry weight of the tobacco matrix, more preferably about 10% - 35%.

[0082] The plasticizer is mainly used to improve the flexibility and plasticity of the aerosol generating article 20, making it easier to process and form. At the same time, the plasticizer can also reduce the hardness of the article 20, improving its comfort and durability. In the atomization section, the plasticizer helps to maintain the uniform mixing and stable release of each component.

[0083] Exemplarily, the plasticizer includes but is not limited to: cellulose fibers; cork fibers; hardwood fibers; jute fibers and combinations thereof.

[0084] The flavor is the component used to add flavor and aroma in the aerosol generating article 20. It can include various volatile flavor components, such as menthol, lemon, vanilla, etc. The addition of flavor can enhance the user's inhalation experience, making it more pleasant and satisfying.

[0085] The aqueous solvent has good solubility and volatility, and can help to disperse other components evenly in the article 20. The aqueous solvent can evaporate rapidly when heated, forming part of the aerosol, and at the same time will not have a negative impact on the user's health.

[0086] Compared with the aqueous solvent, the non - aqueous solvent usually has different volatility and solubility characteristics. It can be used to dissolve some components that are not easily soluble in water, or to adjust the volatility and taste of the article 20.

[0087] The suction section 21 can also be called the filter section. The user contacts the filter section so that the aerosol generated by the aerosol generating article 20 passes through the filter section to reach the user. The filter section is mainly composed of cellulose acetate material, used to filter harmful components in the smoke, and has a length of at least 5 mm.

[0088] The wrapping element 23 wraps the suction section 21, the substrate section 22, and the connection area between the suction section 21 and the substrate section 22, and the wrapping element 23 partially encloses the end of the aerosol-generating article 20 that is away from the suction section 21.

[0089] Specifically, the wrapping element 23 includes wrapping paper, and the end of the wrapping paper is folded inward to form a pleat structure 24. The pleat structure 24 is used to partially enclose the end of the aerosol-generating article 20 that is away from the suction section 21, so that the air permeability of the aerosol-generating article 20 reaches at least 60%.

[0090] Among them, the aerosol air permeability is calculated according to the following formula (1):

[0091]

[0092] Among them, P is the air permeability, S1(N,r) is the air-permeable area of the N-sided polygon at the end of the aerosol-generating article with an circumscribed circle radius of r, and s2 is the air-permeable area per unit length of the partially enclosed fold seam.

[0093] It can be understood that through the unique design of the pleat knot 24, the degree of enclosure of the end of the aerosol-generating article 20 can be precisely controlled. The pleat structure 24 makes the end away from the suction section 21 form a partial enclosure. By adjusting the number, shape, and size of the pleats, the value of S1(N,r) can be changed, so as to achieve precise control of the air permeability P, ensure that the air permeability reaches at least 60%, meet the air permeability performance requirements of the article 20, and improve the suction effect.

[0094] Please refer to Figure 3 and Figure 4 , the pleat structure 24 formed by the wrapping paper has a variety of design forms. One of them is the outward protruding pleat structure 24, for example, presenting a pentagram shape. This uniquely designed outward protruding part can form a certain distance between the suction section 21 of the aerosol-generating article 20 and the bottom of the aerosol-generating device 10.

[0095] The setting of this distance is extremely crucial. It can effectively prevent impurities in the aerosol-generating article 20 from falling during the heating process, thus avoiding adverse effects on the heating effect of the aerosol-generating device 10.

[0096] The pleat structure 24 can also be designed to be horizontally flush with the surface end of the aerosol-generating article 20, and there is an opening in the middle. This opening has a special function. It allows the heating air flow to enter smoothly, and then heats the aerosol.

[0097] It can be understood that this level of corrugated structure 24 design enables the aerosol-generating article 20 to fit more closely with the heating component 11 of the aerosol-generating device 10, thereby ensuring a more ideal heating effect and bringing a better user experience to the user.

[0098] In addition, the corrugated structure 24 formed by the wrapper paper can also be a fully enclosed structure, which plays an important role in the transportation of the aerosol-generating article 20, and can significantly reduce the probability of the article 20 being damaged due to factors such as collision and extrusion, providing reliable protection for the article 20.

[0099] When the aerosol-generating article 20 is in a heated state, since at least one small hole is provided at the end of its corrugated structure 24, air flow can enter the interior of the aerosol-generating article 20 from the small holes on the corrugated structure 24. While improving the protection of the aerosol-generating article 20, it also improves the heating effect on the aerosol, ensuring that the aerosol can be heated evenly and sufficiently, bringing a better and more stable user experience to the user.

[0100] The aerosol-generating article 20 may further include an intermediate section 25, which is arranged between the suction section 21 and the matrix section 22. An air inlet 26 is provided on the surface of the intermediate section 25, and the air inlet 26 is arranged circumferentially around the intermediate section 25.

[0101] Exemplarily, the intermediate section 25 has a row of circular air inlets composed of circular micropores on its circumferential surface. The number of circular air inlets can be 5, and each circular air inlet is arranged at equal intervals. The aperture diameter of the circular air inlet is about 0.1 mm, ensuring that external air enters during consumer suction, thereby reducing the aerosol temperature and reducing the problem of "scalding the mouth".

[0102] Please refer to Figure 5 For the three implementation manners of the a, b, and c air guiding ports 27, a plurality of air guiding ports 27 can be longitudinally arranged on the intermediate section 25, and each air guiding port 27 is arranged at intervals, and the aerosol flows into the suction section 21 through these air guiding ports 27.

[0103] The design of the air guiding port 27 has diverse forms. One of them is a circular air guiding port, and these circular air guiding holes are ingeniously arranged on the end surface of the intermediate section 25 in an interval distribution manner, which not only ensures the uniform passage of air flow but also takes into account the stability of the overall structure.

[0104] Another design of the air guiding port 27 presents an irregular shape, and its uniqueness lies in that a partition structure 271 is provided between each air guiding port 27. When the aerosol passes through these air guiding ports 27 divided by the partition structure 271, the partition can play an effective heat insulation role and reduce the temperature conduction of the aerosol.

[0105] This ingenious design not only enhances the stability of the aerosol but also significantly improves the puffing taste of the aerosol, bringing a more delicate and comfortable user experience to the users.

[0106] The aerosol generating article 20 may further include a filling section 28, which is cleverly arranged between the puffing section 21 and the substrate section 22, playing a key role in regulating the taste of the aerosol.

[0107] Specifically, the filling section 28 is adjacent to the middle section 25 and the substrate section 22, and the material used for its composition is acetate tow. This material not only has good filtering performance but also can optimize the transmission characteristics of the aerosol to a certain extent. A through hole with a diameter of 3 mm is carefully designed inside the filling section 28, and the design of this through hole ensures the smoothness of the aerosol during transmission.

[0108] At the same time, the length of the filling section 28 is set to 10 mm. This length can not only fully ensure the stability of the aerosol when passing through but also will not have too much impact on the overall size of the article 20. When the consumer puffs, the aerosol can smoothly pass through the filling section 28 and finally reach the consumer's mouth, bringing a pleasant puffing experience.

[0109] Please refer to Figure 6 , the circumferential position at the end of the filling section 28 also undertakes the important task of supporting the substrate section 22. It firmly supports the substrate section 22, ensuring the structural stability and reliability of the entire aerosol generating article 20. This ingenious design not only improves the overall performance of the article 20 but also brings a better quality and stable use feeling to the consumers. An air vent partition 29 is provided at the middle position of the filling section 28, and the air flow enters the filling section 28 from the air vent partition 29.

[0110] In the article 20 of the first embodiment provided in the present application, the substrate section 22 is composed of a thin sheet formed by tobacco substances. The thin sheet is loaded with an aerosol former and a flavor. The aerosol former accounts for 30% of the dry weight of the tobacco substrate, and the flavor is a mint flavor, accounting for 7% of the dry weight of the tobacco substrate. Smoke and characteristic aroma are generated by baking with a heating appliance for the consumer to puff.

[0111] Exemplarily, in the first embodiment provided in the present application, the aerosol generating article 20 may have a length of 45 mm and a diameter of 7.2 mm.

[0112] Please refer to Figure 7 , the aerosol generating article 20 of the second embodiment includes: a filling section 28, a substrate section 22, a middle section 25, a puffing section 21, and a wrapping element 23. Among them, the filling section 28, the substrate section 22, the middle section 25, and the puffing section 21 are wrapped into a rod by the wrapping element 23, and the end at the distal end of the filling section 28 has a semi-closed port formed by the folds of the wrapping paper.

[0113] The filling section 28 is composed of a cellulose acetate tow with a length of 5 mm and is adjacent to the substrate section 22. Different from the structure of the article 20 in Embodiment 1, the filling section 28 is located at the distal end of the substrate section 22.

[0114] It can be understood that setting the filling section 28 at the distal end of the substrate section 22 can not only effectively block the tobacco material in the substrate section 22 from being directly observed by consumers, thereby enhancing the overall aesthetic appearance of the aerosol-generating article 20, but also has multiple practical functions.

[0115] On the one hand, it can prevent the tobacco substrate in the substrate section 22 from falling off and entering the heating chamber 14 of the aerosol-generating device 10, ensuring the stability of the heating process.

[0116] On the other hand, it can also prevent other solid residues or liquid residues in the substrate section 22 from falling into the heating chamber 14, preventing these residues from contaminating the heating component 11, thereby reducing the cleaning frequency of the aerosol-generating device 10 and extending its service life.

[0117] The substrate section 22 is mainly composed of thin sheets formed of tobacco material. The thin sheets are loaded with an aerosol-forming agent and a flavor. The aerosol-forming agent accounts for 28% of the dry weight of the tobacco substrate, and the flavor is a blueberry flavor and accounts for 10% of the dry weight of the tobacco substrate. Smoke and characteristic aromas are generated by baking with a heating appliance for consumers to inhale. The length of the atomization section is 10 mm.

[0118] The intermediate section 25 includes two small sections, namely the first intermediate section 251 and the second intermediate section 252, both of which are composed of cellulose acetate tow.

[0119] Specifically, the first intermediate section 251 and the second intermediate section 252 are abutted and connected. The first intermediate section 251 is arranged at the distal end and is closely arranged with the substrate section 22. The second intermediate section 252 is arranged at the proximal end and is closely arranged with the suction section 21. The surface of the second intermediate section 252 is the same as that of the article 20 in Embodiment 1, and an air inlet 26 can be provided. The air inlet 26 is arranged at intervals circumferentially around the second intermediate section 252.

[0120] The first intermediate section 251 and the second intermediate section 252 are closely abutted and connected. The temperature will be first transmitted to the first intermediate section 251 and then conducted to the second intermediate section 252. This design can effectively reduce the temperature of the aerosol in the article 20, thereby ensuring that the temperature of the aerosol finally reaching the suction section 21 is appropriate and avoiding the discomfort of "burning the mouth" felt by consumers during inhalation.

[0121] The pore diameter of the first intermediate section 251 is smaller than that of the second intermediate section 252. Exemplarily, the pore diameter of the first intermediate section 251 is 4 mm, the pore diameter of the second intermediate section 252 is 5.5 mm, and the lengths of the first intermediate section 251 and the second intermediate section 252 are 23 mm.

[0122] It can be understood that the intermediate section 25 is divided into two parts, namely the first intermediate section 251 and the second intermediate section 252, which can enhance the overall sensory effect of the aerosol being sucked and make the smoke fuller and smoother.

[0123] The second intermediate section 252 has two rows of ventilation areas formed by circular micropores along the circumferential direction. The number of micropores in each row is 5, and the diameter of the micropores is about 0.1 mm, ensuring that external air enters during consumer suction, thereby reducing the aerosol temperature.

[0124] The filter section is arranged at the proximal end of the second intermediate section 252. The filter section is composed of cellulose acetate raw materials and has a length of 7 mm.

[0125] The aerosol generating article 20 of this embodiment has a length of 45 mm and a diameter of 7.2 mm.

[0126] Please refer to Figure 8 , the aerosol generating article 20 of Embodiment 3 includes: a filling section 28, an intermediate section 25, a substrate section 22, a suction section 21, and a wrapping element 23. Among them, the filling section 28, the substrate section 22, the intermediate section 25, and the suction section 21 are wrapped into a rod by an outer wrapping paper, and a closed end is formed by the wrapping paper folds at the distal end of the filling section 28.

[0127] There are 6 circular small holes on the end face of the closed end formed by the wrapping paper, so that air can enter the interior of the aerosol generating article 20 from the outside through the circular small holes during consumer suction.

[0128] As Figure 9 shown, the filling section 28 is extruded and formed from polylactic acid raw materials. The length of the filling section 28 is 5 mm, which is arranged adjacent to the substrate section 22 and is located at the distal end of the substrate section 22. Six ventilation partitions 29 can be arranged at the distal end of the filling section 28, which exactly coincides with the 6 circular small holes on the end face of the closed end formed by the wrapping paper.

[0129] The length of the substrate section 22 is 12 mm. The substrate section 22 is mainly composed of thin slices formed by tobacco substances. The thin slices are loaded with an aerosol forming agent and a flavor. The aerosol forming agent accounts for 30% of the dry weight of the tobacco matrix, and the flavor is a pineapple flavor and accounts for 9% of the dry weight of the tobacco matrix. Smoke and characteristic aroma are generated by baking through the aerosol generating device 10 for consumers to suck.

[0130] As Figure 10As shown, the length of the middle section 25 is 18 mm. The middle section 25 is made of paper material and has three circular through-holes inside. The inner diameter of the through-holes is about 3.2 mm. The middle section 25 is arranged adjacent to the matrix section 22 and the suction section 21.

[0131] During the flow of the aerosol, the design of the circular through-holes can significantly increase its contact area with the paper material, thereby promoting the efficiency of heat exchange and effectively reducing the temperature of the smoke.

[0132] It can be understood that if a straight-through paper tube design is adopted, the temperature of the smoke when it reaches the consumer's mouth end will be maintained at about 60.2 °C; while if a paper tube structure with three circular through-holes inside is used, the temperature of the smoke when it reaches the consumer's mouth end can be reduced to about 51.3 °C. This difference in the paper tube structure will ultimately lead to a significant difference in the consumer's suction experience.

[0133] The suction section 21 is arranged at the proximal end of the middle section 25. The filter section is made of acetate fiber raw material and has a length of 10 mm.

[0134] The aerosol generating article 20 of this embodiment has a length of 45 mm and a diameter of 7.2 mm.

[0135] The wrapper design of the present invention has unique advantages and can directly wrap and form each section of the aerosol generating article 20 accurately, greatly simplifying the structural design and forming process of the article 20. During actual use, this design effectively avoids the problem of tobacco shreds falling into the heating cavity of the appliance, significantly improves the user's experience, and ensures the superiority of the sensory quality.

[0136] In addition, the present invention also adopts a closed or semi-closed design strategy for the distal end face of the article 20. This innovative measure not only enhances the structural stability of the article 20 but also effectively prevents the accidental scattering of internal components such as tobacco shreds. More importantly, different sections of the article 20 can be arranged crosswise within the wrapper. This flexible arrangement method greatly improves the adaptability and flexibility of the cigarette, enabling the article 20 to better meet the personalized needs of different users.

[0137] It should be understood that the term "and / or" in this article is merely a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. Here, A and B can be singular or plural. In addition, the character " / " in this article generally represents an "or" relationship between the associated objects before and after, but it may also represent an "and / or" relationship, which can be specifically understood with reference to the context before and after.

[0138] In this application, "at least one" means one or more, and "a plurality of" means two or more. "At least one of the following" or a similar expression means any combination of these items, including any combination of single items or plural items. For example, at least one of a, b, or c can represent: a, b, c, a - b, a - c, b - c, or a - b - c, where a, b, and c can be single or multiple.

[0139] The terms and expressions used herein are for descriptive purposes only, and this application should not be limited to these terms and expressions. The use of these terms and expressions does not mean excluding any equivalent features of the illustration and description (or parts thereof), and it should be recognized that various modifications that may exist should also be included within the scope of the claims. Other modifications, variations, and substitutions may also exist. Accordingly, the claims should be regarded as covering all such equivalents.

[0140] Similarly, it should be noted that although this application has been described with reference to current specific embodiments, those of ordinary skill in the art should recognize that the above embodiments are only used to illustrate this application, and various equivalent changes or substitutions can be made without departing from the spirit of the invention. Therefore, as long as the changes and modifications to the above embodiments are within the scope of the spirit of this application, they will fall within the scope of the claims of this application.

Claims

1. An aerosol-generating article, the aerosol-generating article comprising a suction section and a substrate section that communicate with each other, the suction section being provided at the proximal end of the aerosol-generating article, and the substrate section being provided at the distal end of the aerosol-generating article, characterized in that, The aerosol generating article further comprises: a wrapping element that wraps the suction section, the substrate section, and the connection area between the suction section and the substrate section, and the wrapping element partially encloses the end of the aerosol generating article away from the suction section, such that the air permeability of the aerosol generating article reaches at least 60%; The air permeability is calculated according to the following formula: where P is the air permeability, S1(N,r) is the air permeable area of the N-sided polygon at the end of the aerosol generating article with an circumscribed circle radius of r, and s2 is the unit length air permeable area of the partially enclosed fold seam.

2. The aerosol-generating article according to claim 1, wherein, The wrapping element comprises wrapping paper, and the end of the wrapping paper is folded inwards to form a pleated structure, and the pleated structure is used to partially enclose the end of the aerosol generating article away from the suction section.

3. The aerosol-generating article according to claim 1, wherein The aerosol generating article further comprises an intermediate section disposed between the suction section and the substrate section, and an air inlet is provided on the surface of the intermediate section, and the air inlet is circumferentially disposed around the intermediate section.

4. The aerosol-generating article according to claim 3, wherein, The air inlet is a circular air inlet, and the aperture diameter of the circular air inlet is 0.1 mm.

5. The aerosol-generating article according to claim 3, wherein, A plurality of air guide holes are longitudinally provided in the intermediate section, and the air guide holes are spaced apart from each other.

6. The aerosol-generating article according to claim 1, wherein, The aerosol generating article further comprises an intermediate section, the intermediate section includes a first intermediate section and a second intermediate section, the first intermediate section and the second intermediate section are abutted and connected, the aperture of the first intermediate section is smaller than that of the second intermediate section, the first intermediate section is close to the substrate section, and the second intermediate section is close to the suction section.

7. The aerosol-generating article according to claim 6, wherein, An air inlet is provided on the surface of the second intermediate section, and the air inlet is circumferentially disposed around the second intermediate section.

8. The aerosol-generating article according to claim 1, wherein The aerosol generating article further comprises a filling section disposed between the suction section and the substrate section, and the filling section is used for adjusting the taste of the aerosol.

9. The aerosol-generating article according to claim 1, wherein, The aerosol generating article further comprises a filling section disposed at the distal end of the substrate section, and the distal end of the filling section is enclosed by the wrapping element.

10. The aerosol-generating article according to claim 9, wherein, The circumferential position of the end of the filling section is used to support the substrate section.

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