A smoking-stabilized aerosol-generating article

Abstract

The present application provides a kind of aerosol generating article of stable smoking, it relates to heating non-combustion tobacco product, including sequentially connected by distal end to proximal end smoking section, hollow section, temperature reduction section and filter section;Smoking section distal end is closed arrangement, and the side of smoking section is equipped with first air inlet part;The side of hollow section is equipped with second air inlet part;The side of temperature reduction section is equipped with third air inlet part;The air intake of first air inlet part is less than the sum of the air intake of second air inlet part and the air intake of third air inlet part.The beneficial effects of the present application are: by independent air distribution of each functional section, realize smoking, temperature reduction, taste control function zoning landing, break the structure short board of " single section airflow considering multiple section functions " of existing single passage air intake, without increasing the complexity of cigarette structure, without replacing the original main material, achieve the synergistic optimization of smoking efficiency, smoke cooling performance, three indicators of smoking taste;By changing the air intake ratio of three sections, the smoking flavor can be flexibly adjusted, and the diversified consumer taste demand can be adapted.

Description

Technical Field

[0001] This invention relates to the field of heated non-combustible tobacco products, specifically to a smoke-stable aerosol-generating product. Background Technology

[0002] Currently, most mainstream heated cigarettes adopt an end-inlet structure. This structure generally suffers from technical problems such as poor end sealing performance, easy air leakage, and disordered and uncontrollable airflow. These defects directly lead to insufficient volatilization of the smoke-generating matrix inside the cigarette when heated, resulting in unstable and uneven smoke production, ultimately significantly reducing the consistency and stability of the smoking experience.

[0003] To overcome the drawbacks of end-air intake, some heated cigarettes have adopted a structural design that combines end sealing with radial air intake. However, currently, the end-sealing structure of such heated cigarettes is mostly a single, integrated plug structure, which is limited in form and has poor adaptability. It cannot meet the assembly requirements of various specifications and configurations of cigarette products, and the degree of component standardization is low. At the same time, the existing sealing structure cannot achieve a completely airtight seal at the end of the cigarette, and a slight leakage still exists at the end. The core problem of turbulent airflow has not been fundamentally solved, and the product's smoking stability still has significant shortcomings.

[0004] More importantly, existing heated cigarette products with end-sealed designs all employ a single-segment radial air intake structure, lacking the structural foundation for multi-segment independent air intake and precise air volume distribution. This prevents accurate matching of the airflow with the functional requirements of each section of the cigarette, resulting in significant adaptability defects. Specifically, insufficient air intake in the smoke-generating section leads to reduced heating and volatilization efficiency of the smoke-generating matrix and insufficient smoke output; conversely, excessive air intake in the smoke-generating section causes substantial heat loss from the smoke chamber, resulting in drastic fluctuations in smoke temperature and uneven smoke concentration. Furthermore, the existing structure lacks independent air intake pathways for the cooling and filter sections, failing to fully utilize the cooling buffer, flavor blending, and impurity filtration functions of these two sections. This easily leads to excessively high smoke inlet temperatures, resulting in harsh, dry, and highly irritating smoke, and hinders adjustable flavor profiles, severely limiting further improvements in product quality and user smoking experience. Summary of the Invention

[0005] This invention aims to solve the aforementioned technical problems existing in heated cigarette products with end-sealed designs in the prior art. This invention provides the following technical solution: This invention provides a smoke-stable aerosol generating product, comprising a smoke-generating section, a hollow section, a cooling section, and a filter section connected sequentially from the distal end to the proximal end; The smoke-generating section is enclosed at the far end, and the first air intake is provided on the side of the smoke-generating section; A second air intake is provided on the side of the hollow section; A third air intake is provided on the side of the cooling section; The air intake volume of the first air intake is less than the sum of the air intake volumes of the second and third air intakes.

[0006] Furthermore, the air intake volume of the first air intake section is the same as that of the third air intake section, and is greater than that of the third air intake section.

[0007] Furthermore, the air intake volume of the first air intake section accounts for 30%-40% of the total radial air intake volume of the aerosol generating product, the air intake volume of the second air intake section accounts for 30%-40% of the total radial air intake volume of the aerosol generating product, and the air intake volume of the third air intake section accounts for 20%-40% of the total radial air intake volume of the aerosol generating product.

[0008] Furthermore, the first air intake, the second air intake, and the third air intake form air intake channels through perforations, breathable materials, or breathable grooves.

[0009] Furthermore, the far end of the smoke-generating section is sealed with a smoke-proof sealing membrane.

[0010] Furthermore, the sealing film for cigarettes is an aluminum foil film or a polylactic acid film, and the sealing film for cigarettes is attached and fixed to the end of the smoke-generating section by hot pressing or bonding process.

[0011] Furthermore, the far end of the smoke-generating section is sealed with a plug.

[0012] Furthermore, the plug is a ceramic plug, a food-grade silicone plug, a polylactic acid plug, or a tobacco material plug, and the plug is fixed to the inner wall of the end of the smoke-generating section by interference fit, bonding, or hot melting.

[0013] Furthermore, the distal end of the smoke-generating section is sealed with food-grade tobacco sealant.

[0014] Furthermore, the smoke-generating section's smoke pipe is manufactured using an integrated molding process to seal its distal end.

[0015] The present invention has the following beneficial effects: 1. This invention provides a stable aerosol generation product with a radially multi-segment independent airflow path. The air intake of the first air intake is limited to less than the sum of the air intakes of the second and third air intakes, achieving a precise and differentiated allocation of airflow in the three segments: the smoke generation segment, the hollow segment, and the cooling segment. Specifically, the smoke generation segment relies on the first air intake as the core air intake path, ensuring sufficient heating of the smoke generation matrix and stable aerosol volatilization output. The hollow segment introduces ambient air at room temperature through the second air intake, directly mixing it with the upstream high-temperature flue gas to achieve precise cooling of the flue gas in one stage. The cooling segment utilizes the third air intake to supplement the air intake, performing secondary dilution and auxiliary cooling of the cooled flue gas, simultaneously adjusting the flavor of the flue gas. By independently distributing air to each functional section, the functions of smoke generation, cooling, and taste control are implemented in separate zones. This overcomes the structural shortcomings of the existing single-channel air intake, which "combines single-segment airflow with multiple functions." Without increasing the complexity of the cigarette structure or replacing the original main materials, the product achieves synergistic optimization of three indicators: smoke generation efficiency, smoke cooling performance, and smoking taste. The overall performance of the product is superior to that of existing conventional structures.

[0016] 2. This invention provides a stable aerosol-generating product. The hollow section, through a second air intake section, allows for independent air intake at a ratio of 30%-40%. Room temperature air is initially mixed with the approximately 200°C high-temperature smoke output from the smoke-generating section, rapidly cooling the smoke to below 120°C, thus avoiding the harmful effects of high-temperature smoke on the nose and throat. The cooling section, relying on an independent air intake ratio of 20%-40%, performs secondary dilution and auxiliary cooling, controlling the smoke inlet temperature to below 60°C, a comfortable range for human consumption. This simultaneously optimizes smoke concentration and richness, effectively reducing harshness and dryness. By changing the air intake ratio of the three sections, the smoking flavor can be flexibly adjusted to meet diverse consumer taste preferences. Compared to existing end-sealed heated cigarettes, this invention improves smoking quality from multiple dimensions, including smoke temperature, smoke taste, and smoke generation stability, overcoming the technical drawbacks of existing products such as high smoke temperature, high irritation, and poor taste consistency.

[0017] 3. This invention provides a stable aerosol generating product with a fully sealed, airtight end structure, eliminating industry-wide problems such as gas leakage and disordered air intake at the end. All airflow into the cavity of the cigarette enters only through a pre-set radial channel, ensuring a fixed air intake path and controllable air intake parameters. This eliminates problems such as fluctuations in smoke output and large dispersion in the number of puffs per cigarette caused by end seal failure, effectively guaranteeing a highly consistent smoking experience across different production batches and usage environments. The smoke-generating section is configured with a dedicated air intake ratio of 40%-60%, precisely matching the gas demand for the heated volatilization of the aerosol matrix. This avoids defects such as incomplete matrix volatilization and low aerosol production caused by insufficient air intake, while also preventing excessive air intake from carrying away heat from the cavity and causing abnormal temperature fluctuations. Actual smoke generation efficiency is 15%-25% higher than existing conventional products.

[0018] 4. The present invention provides a smoke-stable aerosol generating product with a completely sealed end design. The completely sealed end configuration can prevent external dust, impurities, and moisture from entering the inner cavity of the cigarette from the end during product storage, transportation, and use throughout the product's life cycle, preventing the smoke-generating matrix from getting damp or contaminated by foreign objects, and ensuring the cleanliness of the combustion aerosol. In addition, the multi-stage radial air intake promotes full and homogeneous mixing of the smoke gas and the supplementary air, which can reduce the condensation and deposition of harmful components in the smoke gas, further optimizing the product's suction safety properties. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a longitudinal cross-sectional view of an embodiment of a smoke-stable aerosol generating product according to the present invention; Figure 2 This is a front view of an embodiment of a smoke-stable aerosol generating article of the present invention; Figure 3 This is a longitudinal cross-sectional view of another embodiment of a smoke-stable aerosol generating product of the present invention.

[0021] In the picture: 1. Smoke-generating section; 11. First air intake section; 111. First air intake; 2. Hollow section; 21. Second air intake; 211. Second air intake; 3. Cooling section; 31. Third air intake section; 311. Third air intake; 4. Filter tip section; 5. Plug; 6. Sealing film for cigarettes. Detailed Implementation

[0022] The detailed features and advantages of this application are described below in the specific embodiments. The content of this description is sufficient to enable any person skilled in the art to understand the technical content of this application and implement it accordingly. Based on the specification, claims and drawings disclosed in this specification, a person skilled in the art can easily understand the related objectives and advantages of this application.

[0023] The invention will now be described with reference to the accompanying drawings, in which similar reference numerals denote similar elements. While specific structures and arrangements are discussed, it should be understood that this is done merely for illustrative purposes. Those skilled in the art will recognize that other structures and arrangements can be used without departing from the spirit and scope of the invention. It will be apparent to those skilled in the art that the invention can also be used in a variety of other applications.

[0024] In this specification and claims, several terms will be used, and unless otherwise indicated, these terms will be defined to have the following meanings: The singular forms “one” and “a” include their corresponding plural forms. “At least one” means one or more, and “more” means two or more. “At least one of the following” or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can be expressed as: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple.

[0025] All figures used to represent component amounts, properties (e.g., molecular weight), reaction conditions, etc., should be considered to be modified in all cases by the terms "within the unavoidable margin of error" or "about". Therefore, the numerical values ​​set forth herein are approximate and may vary depending on the desired properties sought to be obtained by the present invention. The principles of equivalents, which are applied to a minimum and not intended to limit the scope of the claims, should be applied, for example, each value should be interpreted at least according to the reported significant digits and by applying conventional rounding techniques.

[0026] It should be understood that the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. A and B can be singular or plural. Additionally, the character " / " in this article generally indicates an "or" relationship between the preceding and following related objects, but it can also represent an "and / or" relationship. Please refer to the context for a more accurate understanding.

[0027] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product is usually placed during use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0028] Unless otherwise indicated, the following abbreviations have the following meanings, and any other abbreviations used herein but not defined have their generally accepted standard meanings: All other terms used herein for special definition are intended to have the general meaning understood by one of ordinary skill in the art, in particular meaning that one of ordinary skill in the art can directly and without doubt determine how the technical solutions of the invention can be implemented after reading the claims, specification and drawings.

[0029] Even if there are incomplete descriptions, omissions, or ambiguities in the grammar, words, punctuation, graphics, symbols, etc. of the claims, specification, and drawings of this patent, a person skilled in the art can still arrive at the only correct understanding by reading the claims, specification, and drawings as a whole without extensive reasoning or experimentation, and effectively exclude various incorrect interpretations that are not aimed at achieving the purpose of this patent.

[0030] Those skilled in the art would first choose to read the claims, specification, and drawings of this patent to reasonably interpret the terms; secondly, they would choose to refer to the relevant definitions in other documents published by the applicant before the filing date to reasonably interpret the terms; thirdly, they would choose the references cited in this patent to reasonably interpret the terms; and finally, they would choose to combine the technical dictionaries, technical manuals, reference books, textbooks, national or industry technical standards, etc., commonly used by those skilled in the art to reasonably interpret the terms.

[0031] To make the objectives, technical solutions, and advantages of this application clearer, the following will describe in detail its implementation methods in conjunction with the specific structure and working process of the device of the present invention.

[0032] Please refer to Figure 1 and 2 The present invention provides a smoke-stable aerosol generating product, comprising a smoke-generating section 1, a hollow section 2, a cooling section 3, and a filter section 4 connected sequentially from the distal end to the proximal end.

[0033] First, for the purposes and advantages related to this application, the smoke-generating section 1, the hollow section 2, the cooling section 3, and the filter section 4 of smoking articles such as aerosol-generating articles will be described.

[0034] The aerosol-generating product is a smoking product, and the aerosol-generating matrix serves as the smoke-generating matrix of the smoke-generating section 1 of the aerosol-generating product. The aerosol-generating matrix generates aerosols through heating, which can be directly inhaled into the user's lungs through the user's mouth.

[0035] Aerosol-generating articles can refer to any inhalable article or any article that provides a smoking experience, regardless of whether it is based on tobacco, tobacco derivatives, expanded tobacco, reconstituted tobacco or tobacco substitutes.

[0036] For example, aerosol-generating articles may include aerosol-generating products such as cigarettes, cigars, and cigarillos. Preferably, the aerosol-generating matrix is ​​a solid aerosol-generating matrix. The aerosol-generating matrix may include both solid and liquid components. For example, the aerosol-generating matrix may include tobacco materials. For example, the aerosol-generating matrix may include tobacco leaves, tobacco stems, or substances processed from them. As more specific examples, the aerosol-generating matrix may include pulverized tobacco leaves, pulverized reconstituted tobacco, expanded pipe tobacco, expanded stems, and reconstituted tobacco.

[0037] Preferably, the aerosol-generating matrix includes nicotine. In some preferred embodiments, the aerosol-generating matrix includes tobacco.

[0038] If the aerosol generating matrix is ​​a solid aerosol generating matrix, then the solid aerosol generating matrix may include one or more of the following: powder, granules, pellets, fragments, strips, strips or sheets, and contains one or more of the following: herbaceous plant leaves, tobacco leaves, tobacco ribs, flat tobacco and homogeneous tobacco.

[0039] Alternatively, the solid aerosol generating matrix may contain tobacco volatile aromatic compounds or non-tobacco volatile aromatic compounds released when the solid aerosol generating matrix is ​​heated. The solid aerosol generating matrix may also contain one or more capsules, which include, for example, additional tobacco volatile aromatic compounds or non-tobacco volatile aromatic compounds, and such capsules may melt during heating of the solid aerosol generating matrix.

[0040] Alternatively, the solid aerosol generating matrix can be disposed on or embedded in a heat-stabilized carrier. The carrier can be in the form of powder, granules, pellets, fragments, strips, bars, or sheets. The solid aerosol generating matrix can be arranged on the surface of the carrier, for example, in the form of sheets, foams, gels, or slurries. The solid aerosol generating matrix can be placed on the entire surface of the carrier, or alternatively, it can be patterned to provide uneven fragrance delivery during use.

[0041] The aerosol generating matrix can be in the form of a plug, which includes aerosol-forming materials defined by paper or other packaging materials. In the case where the aerosol generating matrix is ​​in the form of a plug, the entire plug comprising any packaging paper is considered to be the aerosol generating matrix.

[0042] Preferably, the aerosol generating matrix includes a plug, which comprises an aggregate of homogeneous tobacco material or other aerosol forming material surrounded by packaging material.

[0043] In this patent, "aerosol forming agent" is used to describe any suitable known compound or mixture of compounds that promotes aerosol formation in use and is substantially resistant to thermal degradation at the operating temperature of the aerosol-generated article.

[0044] Suitable aerosol forming agents are known in the art and include, but are not limited to: polyols, such as propylene glycol, triethylene glycol, 1,3-butanediol, and glycerol; esters of polyols, such as glycerol monoacetate, glycerol diacetate, or glycerol triacetate; and aliphatic esters of mono-, di-, or polycarboxylic acids, such as dimethyl dodecanoate and dimethyl tetradecanoate. Preferred aerosol forming agents are polyols or mixtures thereof, such as propylene glycol, triethylene glycol, 1,3-butanediol, and most preferably glycerol.

[0045] The aerosol generating matrix may include a single aerosol forming agent. Alternatively, the aerosol generating matrix may include a combination of two or more aerosol forming agents.

[0046] Preferably, the aerosol generating matrix has an aerosol forming agent content of more than 5% by dry weight. More preferably, the aerosol generating matrix may have an aerosol forming agent content between about 5% and about 30% by dry weight. In one embodiment, the aerosol generating matrix has an aerosol forming agent content of about 20% by dry weight.

[0047] Aerosol-generated products can have the shape of traditional cigarettes. Cigarette-like cigarette products and their specifications are usually named according to the length of the cigarette, as follows: "Standard" typically refers to a cigarette in the range of 68mm-75mm, for example, approximately 68mm-72mm in length; "Short" or "Mini" refers to a cigarette shorter than 68mm; "Extra-standard" typically refers to a cigarette in the range of 75mm-91mm, for example, approximately 79mm-88mm in length; "Long" or "Extra-long" typically refers to a cigarette in the range of 91mm-105mm, for example, approximately 94mm-101mm in length; and "Extra-long" typically refers to a cigarette in the range of approximately 110mm-121mm in length. Additionally, cigarette products are named according to the outer circumference of the cigarette, as follows. The terms "standard" and "extra-fine" refer to cigarettes with a circumference of approximately 23mm-25mm. "Coarse" refers to cigarettes with a circumference of over 25mm. "Fine" refers to cigarettes with a circumference of approximately 22mm-23mm. "Long and thin" refers to cigarettes with a circumference of approximately 19mm-22mm. "Extra-fine" refers to cigarettes with a circumference of approximately 16mm-19mm. "Micro-fine" refers to cigarettes with a circumference of less than 16mm. Therefore, extra-standard and extra-fine cigarettes have, for example, a length of approximately 83mm and a circumference of approximately 17mm. Standard and extra-standard cigarettes, with a length of 75mm-91mm and a circumference of 23mm-25mm, are favored by many customers.

[0048] Cigarette products of various specifications can also be manufactured with filter segments 4 of different lengths, which are the filter tips of the cigarette. Generally, short filters are used for cigarette products that are short in both length and circumference.

[0049] Typically, filter lengths range from 15mm, used with "short" and "standard" cigarettes, to 30mm, used with "extra long" and "extra thin" cigarettes. The tipping paper in the longitudinal direction of the cigarette with a filter is, for example, 3mm-10mm longer than the filter.

[0050] Hollow section 2 can be located directly downstream of smoke-generating section 1 and can be close to smoke-generating section 1.

[0051] Hollow segment 2 can be formed of any suitable material or combination of materials. For example, hollow segment 2 can be formed of one or more materials selected from the group consisting of: cellulose acetate; paperboard; curled paper, such as curled heat-resistant paper or curled parchment; and polymeric materials, such as low-density polyethylene (LDPE). In a preferred embodiment, hollow segment 2 is formed of cellulose acetate.

[0052] Hollow section 2 may include a hollow tubular element. In a preferred embodiment, hollow section 2 includes a cellulose acetate tube.

[0053] The hollow segment 2 may have a length between approximately 5 mm and approximately 15 mm. In a preferred embodiment, the hollow segment 2 has a length of approximately 8 mm.

[0054] Cooling section 3 is located downstream of smoke-generating section 1. For example, cooling section 3 can be located directly downstream of hollow section 2 and adjacent to hollow section 2. Cooling section 3 is located between hollow section 2 and filter section 4, with filter section 4 located at the downstream end of the aerosol-generating product.

[0055] Preferably, the cooling section 3 has low suction resistance. That is, preferably, the cooling section 3 provides low resistance to air passing through the aerosol-generated article. Preferably, the cooling section 3 has virtually no impact on the suction resistance of the aerosol-generated article.

[0056] The cooling section 3 may include multiple longitudinally extending channels. These channels may be defined by a sheet material that has undergone one or more of curling, pleating, gathering, and folding to form the channels. Alternatively, the multiple longitudinally extending channels may be defined by a single sheet that has undergone one or more of curling, pleating, gathering, and folding to form the multiple channels.

[0057] In some embodiments, the cooling section 3 may include an aggregate of materials selected from the group consisting of: metal foil, polymeric materials, and substantially non-porous paper or cardboard. In some embodiments, the cooling section 3 may include an aggregate of materials selected from the group consisting of: polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), polyethylene terephthalate (PET), polylactic acid (PLA), cellulose acetate (CA), and aluminum foil. In a preferred embodiment, the cooling section 3 includes an aggregate of biodegradable materials. For example, an aggregate of non-porous paper or an aggregate of biodegradable polymeric materials (such as polylactic acid). The cooling section 3 may also employ a phase change cooling material.

[0058] The filter segment 4 is located near the aerosol-generating article. The filter segment 4 may be located directly downstream of and adjacent to the cooling segment 3. The filter segment 4 may include a filter tip. The filter tip may be formed of one or more suitable filter materials. Many such filter materials are known in the art. In one embodiment, the mouthpiece may include a filter tip formed of cellulose acetate tow.

[0059] The mouthpiece can have a length between approximately 5 mm and approximately 20 mm. In a preferred embodiment, the mouthpiece has a length of approximately 14 mm. The mouthpiece can also have a length between approximately 5 mm and approximately 14 mm. In a preferred embodiment, the mouthpiece has a length of approximately 7 mm.

[0060] The components of the aerosol-generating article are surrounded by an outer packaging. The outer packaging is formed of any suitable material or combination of materials. Preferably, the outer packaging paper is cigarette paper.

[0061] For example, the smoke-generating section 1, hollow section 2, cooling section 3 and filter section 4 of the present invention are coaxially connected in sequence as an integral cylindrical structure, and are externally wrapped and fixed by forming paper / cigarette tipping paper. The overall structure is adapted to the heating cavity size of conventional heated smoking devices on the market.

[0062] The smoke-generating section 1 is sealed at its far end, which is the end that is inserted into the heating chamber of the heating device. It adopts a completely sealed structure so that when the smoke-generating section 1 is heated by the heating device, there is no air gap at the far end of the smoke-generating section 1, which completely blocks the end air intake and leakage channels, and ensures that all air intake of the aerosol generating product can only enter through the radial side (cylindrical outer wall) of the aerosol generating product.

[0063] The sealing structure at the far end of smoke-generating section 1 is not limited to a specific form. Any structure that can achieve complete airtightness at the end falls within the protection scope of this solution, including but not limited to the following implementation forms: like Figure 3 As shown, in some embodiments, the far end of the smoke-generating section 1 is sealed with a smoke-sealing film 6, and the sealing film is sealed and fitted to the far end of the smoke-generating section 1 to achieve sealing.

[0064] For example, the sealing film 6 for cigarettes is an aluminum foil film or a polylactic acid film. The aluminum foil film or polylactic acid film can be deformed to form a corresponding shape according to the shape of the distal end of the smoke-generating section 1, so as to fit tightly against the distal end of the smoke-generating section 1. The sealing film 6 for cigarettes is bonded and fixed to the end of the smoke-generating section 1 by hot pressing or bonding process, thereby achieving a strict seal at the distal end of the smoke-generating section 1.

[0065] like Figure 1 As shown, in some embodiments, the distal end of the smoke-generating section 1 is sealed with a plug 5. The shape and size of the plug 5 are adapted to the shape and size of the inner hole at the distal end of the smoke-generating section 1. The plug 5 is inserted into the distal end of the smoke-generating section 1 to achieve sealing.

[0066] For example, the plug 5 is a ceramic plug 5, a food-grade silicone plug 5, a polylactic acid plug 5, or a tobacco material plug 5. After the plug 5 is inserted into the interior of the far end of the smoke-generating section 1, the plug 5 is fixed to the inner wall of the end of the smoke-generating section 1 by interference fit, bonding, or hot melting, eliminating the gap between the plug 5 and the far end of the smoke-generating section 1, and achieving a gapless full seal.

[0067] In some embodiments, the distal end of the smoke-generating section 1 is sealed with food-grade tobacco sealant, using the food-grade tobacco sealant as a filler material to seal the distal end of the smoke-generating section 1.

[0068] For example, food-grade tobacco sealant is injected into the distal end of the smoke-generating section 1, or food-grade tobacco sealant is applied to the distal end face of the smoke-generating section 1. After the food-grade tobacco sealant cures, it forms a completely airtight sealing layer that strictly seals the distal end of the smoke-generating section 1.

[0069] In some embodiments, the smoke tube of the smoke-generating section 1 is manufactured using an integral molding process to seal its distal end. Specifically, during the processing of the smoke-generating section 1, the smoke tube of the smoke-generating section 1 is manufactured using an integral molding process, and the distal end of the smoke tube is directly processed into a sealed end, without the need for additional accessories, achieving native full sealing.

[0070] It should be noted that the sealing structure can be flexibly selected according to actual application needs, as long as the distal end of the smoke-generating section 1 is completely airtight and there are no gaps or leaks between the sealing structure and the distal end of the smoke-generating section 1. In this way, the aerosol-generating product will remain completely airtight throughout its normal storage, transportation, and inhalation cycle, with no risk of end leakage.

[0071] The side wall of the smoke-generating section 1 is provided with a first air intake 11 for the entry of external air.

[0072] The side wall of the hollow section 2 is provided with a second air intake 21 for the entry of external air.

[0073] The cooling section 3 has a third air intake 31 on its side wall for the entry of external air.

[0074] The first air inlet 11, the second air inlet 21, and the third air inlet 31 together constitute a multi-segment radial independent air inlet passage for the aerosol-generating product. The air intake volume of the first air inlet 11 is less than the sum of the air intake volumes of the second air inlet 21 and the third air inlet 31. Through differentiated segmented air distribution, the functions of smoke generation, cooling, and flavor adjustment are coordinated in different zones, effectively improving the product's vaping stability and flavor consistency.

[0075] In a preferred embodiment, the air intake volume of the first air intake section 11 is the same as that of the air intake section and is greater than that of the third air intake section 31. By setting this air intake ratio, it is possible to prioritize the stable smoke generation of the matrix in the smoke generation section 1, while also taking into account the main cooling function of the hollow section 2 and the fine taste adjustment function of the cooling section 3.

[0076] The three-stage air intake ratio range can be flexibly adjusted according to product specifications and taste requirements to achieve precise allocation of air intake. For example, the air intake volume of the first air intake section 11 accounts for 30%-40% of the total radial air intake volume of the aerosol-generating product, the air intake volume of the second air intake section 21 accounts for 30%-40% of the total radial air intake volume of the aerosol-generating product, and the air intake volume of the third air intake section 31 accounts for 20%-40% of the total radial air intake volume of the aerosol-generating product. Preferably, the air intake volume of the first air intake section 11 accounts for 40% of the total radial air intake volume of the aerosol-generating product, the air intake volume of the second air intake section 21 accounts for 40% of the total radial air intake volume of the aerosol-generating product, and the air intake volume of the third air intake section 31 accounts for 20% of the total radial air intake volume of the aerosol-generating product.

[0077] The hollow section 2 receives 30%-40% of its air intake independently via the second air intake section 21. This initial mixing of room-temperature air with the approximately 200°C high-temperature smoke output from the smoke-generating section 1 rapidly cools the smoke to below 120°C, preventing burns to the nose and throat from the source. The cooling section 3, relying on a 20%-40% independent air intake ratio, performs secondary dilution and auxiliary cooling, controlling the smoke inlet temperature to below 60°C, a comfortable range for human consumption. This simultaneously optimizes smoke concentration and richness, effectively reducing harshness and dryness. By changing the air intake ratio of the three sections, the smoking flavor can be flexibly adjusted to meet diverse consumer taste preferences. Compared to existing end-sealed heated cigarettes, this improves smoking quality from multiple dimensions, including smoke temperature, flavor, and smoke generation stability, overcoming the technical drawbacks of previous products such as high smoke temperature, high irritation, and poor taste consistency.

[0078] Specifically, the first air intake 11, the second air intake 21, and the third air intake 31 can adopt various breathable structural forms to achieve the air intake function. The first air intake 11, the second air intake 21, and the third air intake 31 can form air intake channels through perforations, breathable materials, or breathable grooves to achieve radial air intake. It should be noted that any structural form that can achieve radially controllable air intake is applicable to this technical solution.

[0079] For example, while satisfying the support of the aerosol-generated article, the first air inlet 11, the second air inlet 21 and the third air inlet 31 are all formed by radial drilling on the side of the aerosol-generated article through methods such as laser drilling and mechanical drilling.

[0080] like Figure 2As shown, the first air intake 11, the second air intake 21, and the third air intake 31 can each include multiple air intake holes. These air intake holes can be rectangular, hexagonal, circular, or elliptical, and their distribution can be equally spaced or irregular. Specifically, the first air intake 11 includes multiple first air intake holes 111, which are arranged circumferentially around the smoke-generating section 1 at intervals; the second air intake 21 includes multiple second air intake holes 211, which are arranged circumferentially around the hollow section 2 at intervals; and the third air intake 31 includes multiple third air intake holes 311, with the first air intake holes 111 arranged circumferentially around the cooling section 3 at intervals.

[0081] The specifications and dimensions of the sol-gel products can be flexibly adapted. The standard compatible dimensions are: The smoke-generating section 1, the hollow section 2, the cooling section 3, and the filter section 4 are cylindrical and have substantially similar outer diameters. For example, they have an outer diameter of at least 5 mm. Preferably, the outer diameter is 6.5 mm to 8.0 mm.

[0082] The total length of the sol-generated product is 45mm-120mm, of which the length of the closed structure such as the plug 5 at the far end of the smoke-generating section 1 is 5-15mm, the length of the smoke-generating section 1 is 10mm-20mm, the length of the hollow section 2 is 5-15mm, the length of the cooling section 3 is 10mm-30mm, and the length of the filter section is 5mm-20mm. It can be adjusted according to different smoking device specifications and smoking needs.

[0083] This embodiment also tested the smoke generation efficiency, cooling effect, and storage performance of a smoke-stable aerosol-generating product of this application, as detailed below:

[0084] The inlet parameters for the smoke-stable aerosol-generating product in this embodiment are: A 0.2mm aperture laser is used to drill holes in the side walls of the smoke-generating section 1, the hollow section 2, and the cooling section 3 of the aerosol-generating product to allocate their respective air intake ratios.

[0085] Smoke-generating section 1: 12 evenly distributed air inlets are located in the middle of smoke-generating section 1 and are evenly distributed around smoke-generating section 1 in the circumference. The corresponding air intake accounts for 40% of the total radial air intake of the aerosol-generated product.

[0086] Hollow section 2: 12 evenly distributed air inlets are located in the middle of hollow section 2 and are evenly distributed around the circumference of hollow section 2. The corresponding air intake accounts for 40% of the total radial air intake of the aerosol generated product.

[0087] Cooling section 3: 6 evenly distributed air inlets are located in the middle of cooling section 3 and are evenly distributed around the circumference of cooling section 3. The corresponding air intake accounts for 20% of the total radial air intake of the aerosol generated product.

[0088] Setting up examples and comparative examples

[0089] Table 1 Product Structure of Examples and Comparative Examples

[0090] Smoke generation efficiency test: The aerosol generating products of Example 1, Comparative Examples 1 and 2 were inserted into a standard center-heated smoking device and inhaled according to ISO standards. The total particulate matter (TPM) of each cigarette was captured using a Cambridge filter, and the smoke generation per cigarette was calculated by weighing. The smoke concentration was then measured using a smoke concentration meter after inserting the aerosol generating product into the standard center-heated smoking device and inhaling according to ISO standards. The test results are as follows: Table 2. TPM test data for a single sample (unit: mg)

[0091] Table 3 Test data on smoke concentration and smoke output fluctuations

[0092] The test results showed that the batch-to-permeability (TPM) of the stable aerosol-generating product in Example 1 fluctuated by ±6.6%. In contrast, the batch-to-permeability (TPM) of the heated cigarette product with end sealing in Comparative Example 1 fluctuated by ±18.3%. The comparison revealed that the stable aerosol-generating product in Example 1 had a significantly higher TPM efficiency than the heated cigarette product with end sealing in the prior art.

[0093] The aerosol-generating product with stable smoke generation in Example 1 has an average smoke concentration that is 13.7% higher than that of the heated cigarette product with end sealing in Comparative Example 1, and an average smoke concentration that is 34.9% higher than that of the heated cigarette product with open smoke generation section at the far end in Comparative Example 2. This significantly optimizes the smoke concentration and mellow texture, and effectively reduces the pungent, dry and other unpleasant irritations of the smoke.

[0094] Cooling effect test: Insert the aerosol generation product into the standard center heating device and preheat for 30 seconds; connect filter section 4 to the smoking machine and smoke according to ISO standard until the cigarette is finished; use Cambridge filter to capture total particulate matter, weigh and calculate the TPM value; insert thermocouple into the center position of the filter rod outlet, record the highest temperature of each puff of smoke, and take the average value.

[0095] Table 4 Flue Gas Temperature Test Data

[0096] Comparative analysis revealed that the average inlet temperature of the smoke from filter segment 4 of the smoke-stable aerosol-generating product in Example 1 was 52.8°C, while the average inlet temperature of filter segment 4 of the heated cigarette product with end sealing in Comparative Example 1 was 58.1°C. The smoke-stable aerosol-generating product of this application can regulate the inlet temperature to a more comfortable range for human inhalation.

[0097] Storage performance test: The aerosol product was placed in a constant temperature and humidity chamber and stored at 40℃ and 75% relative humidity for 7 days after opening the package. The smoke concentration was measured by accelerated aging test.

[0098] Table 5. Smoke Emission Decrease Test Data

[0099] The smoke emission reduction of the aerosol-generating product was tested: the smoke-stable aerosol-generating product in Example 1 showed a smoke emission reduction of 7.8%, compared to 15.5% for 5 cigarettes with conventional permeable plugs in Comparative Example 1, and 21.5% for 5 cigarettes without plugs in Comparative Example 2. The comparison revealed that the smoke-stable aerosol-generating product in this example has significant advantages in product storage and transportation.

[0100] The device embodiments described above are merely illustrative. For example, the division of units is only a logical functional division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another device, or some features may be ignored or not executed.

[0101] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0102] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0103] In this specification, references to "an embodiment" or "a specific implementation" mean that a particular feature, structure, or characteristic described in connection with that embodiment / specific implementation is included in at least one embodiment / specific implementation of the invention. Therefore, the phrase "in one embodiment / specific implementation" appearing in various places in this specification does not necessarily refer to the same embodiment / setting, but rather to potentially different embodiments. Furthermore, specific features, structures, or characteristics may be combined in one or more embodiments / settings in any suitable manner, as will be apparent to those skilled in the art from this disclosure.

[0104] Similarly, it should be understood that in the above description of exemplary embodiments / specific implementations of the invention, various features of the invention are sometimes combined in a single embodiment / specific implementation or its figures and description, with the aim of simplifying the disclosure and aiding in the understanding of one or more of the various aspects of the invention. However, the method of description of the invention should not be construed as reflecting an intention that, except for expressly stated instructions to the contrary or obvious technical contradictions or exclusions, the claimed features of the invention are more than those expressly stated in each claim.

[0105] Conversely, the inventive aspect reflected in the claims lies in not all the features of a single foregoing disclosed embodiment / specification. Therefore, the claims following the detailed description are expressly incorporated herein, each claim existing independently as a separate embodiment / specification of the invention.

[0106] Furthermore, while some embodiments / specific implementations described herein include, but are not limited to, other features included in other embodiments / specific implementations, combinations of features from different embodiments / specific implementations are intended to be within the scope of the invention and form different embodiments / specific implementations, as will be understood by those skilled in the art. For example, in the following claims, embodiments / specific implementations of any claim can be used in any combination.

[0107] The terms and expressions used in this specification are for illustrative purposes and not for limitation. In using these terms and expressions, it is not intended to exclude any equivalents of the features or portions thereof shown and described, but rather to recognize that various modifications may be possible within the scope of the invention.

[0108] Therefore, it should be understood that although the invention has been specifically disclosed through preferred embodiments, exemplary embodiments and optional features, those skilled in the art may take variations or modifications of the concepts disclosed herein, and such variations and modifications are therefore considered to be within the scope of the invention as defined by the appended claims.

[0109] The specific embodiments given in this specification are examples of useful implementations of the present invention. It will be apparent to those skilled in the art that the present invention can be implemented using many variations of the devices, device components, and method steps disclosed in this specification.

[0110] The foregoing description of specific embodiments fully discloses the general features of the present invention, enabling others to easily modify and / or adapt such specific embodiments for various applications by applying knowledge within the scope of the art, without conducting excessive experimentation and without departing from the general concept of the present invention.

[0111] Therefore, based on the teachings and guidance provided herein, it is intended that such modifications and alterations be included within the meaning and scope of equivalents of the disclosed embodiments. It should be understood that the wording or terminology used herein is for descriptive purposes and is not intended to be limiting; thus, the wording or terminology in this specification will be interpreted by those skilled in the art based on the foregoing teachings and guidance.

[0112] Furthermore, the scope of this invention should not be limited to any of the exemplary embodiments described above, but only to the appended claims and their equivalents. The terminology and expressions used herein are for descriptive purposes only, and the invention should not be limited to these terms and expressions. The use of these terms and expressions does not imply the exclusion of any illustrative and descriptive equivalents (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 considered to cover all such equivalents.

[0113] Similarly, it should be noted that although the present invention has been described with reference to the specific embodiments described above, those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention, and various equivalent changes or substitutions can be made without departing from the spirit of the present invention. Therefore, any changes or modifications to the above embodiments within the scope of the essential spirit of the present invention will fall within the scope of the claims of the present invention.

Claims

1. A smoke-stable aerosol-generating product, characterized in that, It includes a smoke-generating section, a hollow section, a cooling section, and a filter section connected sequentially from the far end to the near end; The smoke-generating section is enclosed at its distal end, and a first air inlet is provided on the side of the smoke-generating section; The hollow section is provided with a second air intake on its side; The cooling section is provided with a third air intake on its side; Wherein, the air intake volume of the first air intake is less than the sum of the air intake volume of the second air intake and the air intake volume of the third air intake.

2. The smoke-stable aerosol generating product according to claim 1, characterized in that: The air intake volume of the first air intake section is the same as that of the third air intake section, and is greater than that of the third air intake section.

3. The smoke-stable aerosol-generating product according to claim 2, characterized in that: The air intake volume of the first air intake section accounts for 30%-40% of the total radial air intake volume of the aerosol generating product, the air intake volume of the second air intake section accounts for 30%-40% of the total radial air intake volume of the aerosol generating product, and the air intake volume of the third air intake section accounts for 20%-40% of the total radial air intake volume of the aerosol generating product.

4. The smoke-stable aerosol-generating product according to claim 1, characterized in that: The first air intake, the second air intake, and the third air intake form air intake channels through perforations, breathable materials, or breathable grooves.

5. The smoke-stable aerosol-generating product according to claim 1, characterized in that: The distal end of the smoke-generating section is sealed with a smoke-proof sealing membrane.

6. A smoke-stabilizing aerosol-generating product according to any one of claims 5, characterized in that: The sealing film for cigarettes is an aluminum foil film or a polylactic acid film, and the sealing film for cigarettes is attached and fixed to the end of the smoke-generating section by hot pressing or bonding process.

7. The smoke-stable aerosol-generating product according to claim 1, characterized in that: The far end of the smoke-generating section is sealed with a plug.

8. The smoke-stable aerosol-generating product according to claim 7, characterized in that: The plug is a ceramic plug, a food-grade silicone plug, a polylactic acid plug, or a tobacco material plug. The plug is fixed to the inner wall of the end of the smoke-generating section by interference fit, bonding, or heat fusion.

9. The smoke-stable aerosol-generating product according to claim 1, characterized in that: The distal end of the smoke-generating section is sealed with food-grade tobacco sealant.

10. The smoke-stable aerosol-generating product according to claim 1, characterized in that: The smoke-generating section's smoke pipe is manufactured using a one-piece molding process to seal its distal end.

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