A functional segment, an aerosol-generating article and an aerosol-generating system

Abstract

The application provides a functional segment, an aerosol generating article and an aerosol generating system, wherein the functional segment is of an integrated structure, the functional segment comprises a plurality of substructures, the plurality of substructures are arranged in a radial direction in a stacked manner, the materials of at least two substructures are different, and at least one substructure is loaded with flavoring substances. The functional segment provided by the application has the advantages that the plurality of substructures are arranged in a radial direction in a stacked manner, the materials of at least two substructures are different, the flavoring substances can be protected, the release time of the aroma can be prolonged, and the satisfaction of smoking can be enhanced. In addition, different flavoring substances can be loaded by the plurality of substructures, the diversity of the aroma, the release level of the aroma, the complexity, the composite aroma of the front, middle and rear notes can be realized, the plurality of substructures can protect the flavoring substances, the release time of the aroma can be prolonged, and the satisfaction of smoking can be enhanced.

Description

Technical Field

[0001] This application relates to the field of smoke-generating products, and in particular to a functional segment, an aerosol-generating product, and an aerosol-generating system. Background Technology

[0002] Aerosol-generating products consist of a matrix segment and a functional segment. The matrix segment is heated by an external heat source to form an aerosol.

[0003] In related technologies, aerosol-generated products use functional segments to carry fragrance in order to improve taste, mask odors, and enhance product appeal. However, the fragrance diffusion uniformity is poor and the fragrance layering is low, making it difficult to meet the different fragrance needs of different consumers at the same time. Therefore, it is necessary to optimize the structure of the functional segments. Utility Model Content

[0004] In view of this, the embodiments of this application aim to provide a functional segment, an aerosol generating article, and an aerosol generating system to increase the user's inhalation experience and inhalation fun.

[0005] This application provides a functional segment for use in aerosol generation products; the functional segment is an integral structure, the functional segment includes multiple substructures, the multiple substructures are arranged in a radial stack along the functional segment, at least two of the substructures are made of different materials, and at least one of the substructures is loaded with a fragrance substance.

[0006] In some implementations, any two adjacent substructures in a plurality of substructures are made of different materials.

[0007] In some embodiments, each of the substructures is loaded with a fragrance substance, and the fragrance substances loaded on each of the substructures are different;

[0008] And / or, the functional segment is an integral co-extruded structure;

[0009] And / or, the outer contour of the functional segment has a columnar structure.

[0010] In some implementations, the inner wall of the innermost substructure forms a hollow channel within the functional segment;

[0011] Alternatively, the innermost substructure may be formed as a solid structure.

[0012] In some implementations, the number of substructures is two, and the thickness ratio of the outermost substructure to the innermost substructure is 0.1 to 5.

[0013] In some implementations, the number of substructures is at least three, and any two adjacent substructures are bonded by ionic bonds.

[0014] In some implementations, the outermost substructure is a hydrophilic structure, and the innermost substructure is a hydrophobic structure.

[0015] In some embodiments, at least one of the substructures is provided with at least one through hole that extends axially through the substructure.

[0016] This application provides an aerosol generating article, comprising:

[0017] A matrix segment for generating aerosols, the matrix segment comprising a distal lip end and a proximal lip end disposed opposite each other along an axial direction;

[0018] And the functional segment described in any embodiment of this application, wherein the functional segment is disposed at the proximal lip end and / or the distal lip end.

[0019] In some implementations, the number of the functional segments is multiple, with at least one functional segment disposed at the proximal lip end and at least one functional segment disposed at the distal lip end;

[0020] And / or, the aerosol-generating article includes an encapsulation layer that encapsulates the periphery of at least a portion of the structure of the matrix segment and the functional segment.

[0021] This application provides an aerosol generation system, including:

[0022] Aerosol generating apparatus, including heating components;

[0023] And the aerosol generating article described in any embodiment of this application, wherein the matrix segment generates aerosol under the heating action of the heating component.

[0024] The functional segment provided in this application embodiment features a multi-layered substructure arranged radially, with at least two substructures made of different materials. This design protects the aroma compounds, prolongs the aroma release time, and enhances the vaping satisfaction. Furthermore, the multi-layered substructure can support different aroma compounds, achieving aroma diversity and a layered, complex aroma release, realizing a complex aroma with top, middle, and base notes. This reduces aroma distortion or disharmony caused by directly mixing different aroma compounds, increasing the user's vaping experience and enjoyment. Simultaneously, the functional segment is integrally molded, resulting in higher structural stability and reducing assembly steps. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the functional segments of the first embodiment of this application;

[0026] Figure 2 for Figure 1 Top view of the functional section shown;

[0027] Figure 3 This is a schematic diagram of the functional segments of the second embodiment of this application;

[0028] Figure 4 for Figure 3 Top view of the functional section shown;

[0029] Figure 5 This is a schematic diagram of the functional segments of the third embodiment of this application;

[0030] Figure 6 for Figure 5 Top view of the functional section shown;

[0031] Figure 7 for Figure 5 A cross-sectional schematic diagram of the functional segment shown;

[0032] Figure 8 This is a schematic diagram of the functional segments of the fourth embodiment of this application;

[0033] Figure 9 for Figure 8 Top view of the functional section shown;

[0034] Figure 10 for Figure 8 A cross-sectional schematic diagram of the functional segment shown;

[0035] Figure 11 This is a schematic diagram of the functional segments of the fifth embodiment of this application;

[0036] Figure 12 for Figure 11 Top view of the functional section shown;

[0037] Figure 13 This is a schematic diagram of the functional segments of the sixth embodiment of this application;

[0038] Figure 14 for Figure 13 Top view of the functional section shown;

[0039] Figure 15 This is a schematic diagram of the functional segments of the seventh embodiment of this application;

[0040] Figure 16 for Figure 15 Top view of the functional section shown;

[0041] Figure 17 for Figure 15 A cross-sectional schematic diagram of the functional segment shown;

[0042] Figure 18 This is a schematic diagram of the functional segments of the eighth embodiment of this application;

[0043] Figure 19 for Figure 18 Top view of the functional section shown;

[0044] Figure 20 for Figure 18 A cross-sectional schematic diagram of the functional segment shown;

[0045] Figure 21 This is a schematic diagram of the structure of the aerosol-generated article according to the first embodiment of this application, with the encapsulation layer omitted in the diagram;

[0046] Figure 22 This is a schematic diagram of the structure of the aerosol-generated article according to the second embodiment of this application, with the encapsulation layer omitted in the illustration;

[0047] Figure 23 This is a schematic diagram of the structure of the aerosol-generated article according to the third embodiment of this application, with the encapsulation layer omitted in the illustration;

[0048] Figure 24 This is a schematic diagram of the structure of the aerosol-generated article according to the fourth embodiment of this application;

[0049] Figure 25 This is a schematic diagram of the structure of the aerosol-generated article according to the fifth embodiment of this application.

[0050] Explanation of reference numerals in the attached figures

[0051] 100 - Aerosol-generated product; 10 - Functional segment; 10a - Hollow channel; 11 - Substructure; 11a - Through hole; 20 - Matrix segment; 30 - Encapsulation layer. Detailed Implementation

[0052] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0053] The specific technical features described in the specific embodiments can be combined in any suitable manner without contradiction. For example, different combinations of specific technical features can form different embodiments and technical solutions. To avoid unnecessary repetition, the various possible combinations of the specific technical features in this application will not be described separately.

[0054] In the following description, the terms "first," "second," etc., are used merely to distinguish different objects and do not indicate that the objects have the sameness or relationship. It should be understood that the directional descriptions "above," "below," "outside," and "inside" refer to the orientation under normal use conditions, while "left" and "right" refer to the left and right directions shown in the corresponding diagrams, which may or may not be the left and right directions under normal use conditions.

[0055] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. "A plurality of" means two or more.

[0056] This application provides a functional segment 10, which is applied to an aerosol generating article 100.

[0057] The aerosol-generating article 100 includes a matrix segment 20. The matrix segment 20 is used to generate aerosols and may be composed of tobacco or herbal media. The molding method of the matrix segment 20 is not limited; exemplarily, the matrix segment 20 may be a one-piece extruded structure. It is understood that the matrix segment may also be formed by filling a dispersed structure with an outer wrapping paper, such as in sheet, filament, or granular form.

[0058] The matrix segment 20 can be heated by a heating component to generate aerosol, in which case the aerosol generating product 100 is a non-combustible aerosol generating product when heated; the matrix segment 20 can also be ignited to generate aerosol, in which case the aerosol generating product 100 is a combustible aerosol generating product.

[0059] For example, in an embodiment where the aerosol generating article 100 generates aerosol by heating without combustion, the matrix segment 20 can be used in conjunction with an aerosol generating device, which includes a heating component and a power supply component. The power supply component provides electrical energy to the heating component, and the heating component converts the electrical energy into other forms of energy and applies them to the matrix segment 20, thereby heating the matrix segment 20 to generate aerosol.

[0060] There are various heating methods for the heating components. For example, heating methods include center heating and peripheral heating. Center heating refers to the heating component being inserted into the matrix segment 20 to bake and heat the matrix segment 20 from the inside out. Peripheral heating refers to the heating component being positioned around the aerosol-generating article 100 to bake and heat the matrix segment 20 from the outside in. These heating methods can specifically include resistance heating, electromagnetic induction heating, infrared heating, microwave heating, laser heating, air heating, electric field heating, carbon source heating, plasma heating, etc., and are not limited herein.

[0061] The matrix segment 20 includes a distal lip end and a proximal lip end arranged opposite each other along the axial direction. The proximal lip end refers to the end of the matrix segment 20 that is close to the user's lips when the user uses the aerosol generating article 100, and the distal lip end refers to the end of the matrix segment 20 that is far away from the user's lips when the user uses the aerosol generating article 100.

[0062] Functional segment 10 is used to be disposed opposite to the distal lip end and / or opposite to the proximal lip end. This means that, in the embodiments of this application, functional segment 10 may be disposed only at the distal lip end of matrix segment 20, or only at the proximal lip end of matrix segment 20, or it may be disposed at both the proximal lip end and the distal lip end of matrix segment 20.

[0063] Please see Figures 1 to 20 The functional segment 10 is an integral structure, which includes multiple substructures. The multiple substructures 11 are arranged in a radial stack along the functional segment 10. At least two substructures 11 are made of different materials, and at least one substructure 11 is loaded with a fragrance substance.

[0064] At least two substructures 11 may be made of different materials. This could mean that all substructures 11 are made of different materials, or that only some of the substructures 11 are made of different materials. For example, when there are two substructures 11, the two substructures 11 are made of different materials. When there are three substructures 11, the three substructures 11 may be made of different materials. Alternatively, the innermost substructure 11 and the middle substructure 11 may be made of the same material but have different structures, and the materials of the innermost substructure 11 and the middle substructure 11 may be different from those of the outermost substructure 11.

[0065] Preferably, any two adjacent substructures 11 are made of different materials. For example, when there are two substructures 11, the two substructures 11 are made of different materials; when there are three substructures 11, the three substructures 11 can be made of different materials, or the innermost substructure 11 and the outermost substructure 11 can be made of the same material, but different from the middle substructure 11. This makes it easier to ensure that the structures of each substructure 11 are substantially the same.

[0066] The fact that at least two substructures 11 are made of different materials means that at least two substructures 11 use materials with different physical or chemical properties during the manufacturing process. These differences include, but are not limited to, properties such as density, hardness, elasticity, thermal stability, and chemical composition. The components of at least two substructures 11 can be completely different or only partially different, but the final result is a difference in the overall material. That is, the functional segment 10 is a composite material structure.

[0067] Multiple substructures 11 are arranged radially stacked along the functional segment 10, meaning that multiple substructures 11 are stacked one layer at a time along the radial direction of the functional segment 10. The functional segment 10 includes multiple layers of substructures 11 from the outside to the inside, wherein at least two substructures 11 are made of different materials. The outer wall of the outermost substructure 11 defines the outer wall of the functional segment 10, and the inner wall of the innermost substructure 11 defines the inner wall of the functional segment 10. The thickness of the functional segment 10 is the sum of the thicknesses of the multiple substructures 11.

[0068] It should be noted that the thickness of multiple substructures 11 can be the same or different, and there is no restriction on this. The number of substructures 11 can be two, three or more.

[0069] It should be noted that in this embodiment, the arrangement of multiple substructures 11 radially stacked along the functional segment 10 does not mean that the substructures 11 are physically connected and layered together after manufacturing. Rather, it means that during the design phase, the internal structure of the functional segment 10 is conceived as having at least two substructures 11 made of different materials. These substructures 11 are considered separately in the design and then integrally molded to form the functional segment 10. That is, the functional segment 10 in this embodiment does not have any splicing or installation marks in its structure. The splicing lines between adjacent substructures 11 in the accompanying drawings of this embodiment are schematic diagrams to distinguish each substructure 11.

[0070] For example, the functional segment 10 in the embodiments of this application can be formed by two-color injection molding, die casting, or co-extrusion molding.

[0071] At least one substructure 11 is loaded with a fragrance substance and is integrally formed with the fragrance substance, that is, the functional segment 10 contains the fragrance substance as soon as it is formed. Here, it can be that one substructure 11 is loaded with a fragrance substance, or that at least two of the multiple substructures 11 are loaded with a fragrance substance, or that each substructure 11 is loaded with a fragrance substance, and there is no limitation here.

[0072] At least one substructure 11 is loaded with a fragrance substance, meaning that the substructure 11 has been preloaded with and integrated with a specific fragrance substance, and the fragrance substance has become an integral part of the substructure 11.

[0073] For example, each substructure 11 is loaded with a fragrance substance. The fragrance substances loaded on each substructure 11 may be the same or different, and there is no limitation on this.

[0074] Specifically, during the manufacturing process, the fragrance substance is directly mixed with other materials to form a slurry, which is then molded using an integrated molding process. This results in a substructure 11 that not only contains the substrate as a carrier but also the aroma-emitting components. This approach ensures, on the one hand, that the fragrance substance is evenly distributed and firmly bound within the substructure 11, providing a stable and long-lasting aroma release effect. It reduces the complexity and unevenness of adding fragrance substances after molding through coatings or other methods, contributing to improved product quality and consistency. On the other hand, substructures 11 made of different materials are easily compatible with the fragrance substance, concentrating it in specific areas and increasing the uniformity of fragrance diffusion. When different fragrance substances are loaded onto each substructure 11, the different materials adapt to the characteristics of different fragrance substances. This facilitates optimization of the aroma release rate and duration when the heating component heats the aerosol to generate the product, increasing the uniformity of aroma release. Different areas exhibit different aromas, achieving a higher base note and enhancing the aroma's complexity, thereby improving the user experience.

[0075] The multi-layer substructure 11 in this embodiment of the application has several advantages. Firstly, it protects the aroma substances, reducing the likelihood of premature evaporation or deterioration. Secondly, it creates a barrier effect; the outer substructure 11 acts as a physical barrier, slowing down the diffusion rate of the aroma substances in the inner substructure 11, thus making the aroma release more persistent and stable. Thirdly, the outer substructure 11 can be made of thermally stable materials, which, while slowing down the release rate of the aroma substances in the inner substructure 11, also protects it from thermal decomposition. It should be noted that the outer and inner layers are defined by their distance from the axis of the functional segment 10; the layer farther from the axis of the functional segment 10 is called the outer layer, and the layer closer to the axis of the functional segment 10 is called the inner layer.

[0076] On the other hand, substructures 11 made of different materials can be designed with different diffusion characteristics or porosity to control the release rate of fragrance substances from each substructure 11. Different fragrance substances can be distributed according to their volatility; for example, more volatile fragrance substances are placed in the inner substructure 11, and less volatile fragrance substances are placed in the outer substructure 11. Multiple fragrance substances are combined to balance the release rate of the aroma, achieving a complex aroma with top, middle, and base notes through multiple substructures 11. For example, initially, a mild and long-lasting base fragrance is perceived, gradually transitioning to a richer or more complex middle and base note, providing the user with a richer and more dynamic aroma experience during use.

[0077] Understandably, compared to related technologies where aroma substances are loaded through a matrix segment, in this application, aroma substances are loaded through a functional segment 10 and integrally formed with the aroma substances. The aroma substances release their fragrance through heat transferred from the matrix segment. The longer heating time will not cause excessive release of low-boiling-point aroma substances, thus increasing the consistency of the aroma. At the same time, the aroma substances can be evenly distributed in each substructure 11. Different aroma substances can be distributed in different substructures 11 according to their characteristics, increasing the sense of aroma release layers. In this way, a rich, multi-layered aroma with good release stability can be simulated through a single functional segment 10. The multi-layered substructures 11 can combine different aroma substances to balance the release rate of the aroma.

[0078] The types of flavoring substances can include mint flavor, sweet orange flavor, tobacco flavor, etc., and there are no restrictions here.

[0079] The functional segment 10 provided in this embodiment has multiple substructures 11 arranged radially, with at least two substructures 11 made of different materials. This protects the aroma substances, prolongs the aroma release time, and enhances the satisfaction of inhalation. Furthermore, by loading different aroma substances onto the multiple substructures 11, it achieves aroma diversity and a layered, complex aroma release, realizing a complex aroma with top, middle, and base notes. This reduces aroma distortion or disharmony caused by directly mixing different aroma substances, increasing the user's inhalation experience and enjoyment. Simultaneously, the functional segment 10 is integrally molded, resulting in higher structural stability and reducing assembly steps.

[0080] For example, the aerosol generating product may include at least one of a pre-plug section, a cooling section, a support section, and a filter section. The pre-plug section is located at the distal lip of the matrix section. The pre-plug section reduces the likelihood of the matrix section 20 falling off after heating and also adsorbs the condensate formed by aerosol condensation, reducing the likelihood of condensate escaping from the aerosol generating product 100 and contaminating the aerosol generating device. It also increases suction resistance, resulting in a more reasonable aerosol content per unit time and improving the user experience. The cooling section, support section, and filter section are sequentially arranged along the direction from the distal lip to the proximal lip of the matrix section 20. The positions of the cooling section and the support section can be interchanged. The support section serves as a structural connection between the two ends. The cooling section lowers the temperature of the aerosol, ensuring that the temperature of the aerosol flowing out of the aerosol generating product 100 is suitable. The filter section filters the aerosol particles, improving their taste.

[0081] In this embodiment of the application, a functional segment 10 can replace any one or more of the foreplug segment, cooling segment, support segment, and filter segment to perform its corresponding function.

[0082] For example, when the functional segment 10 is located at the distal lip end of the matrix segment 20, the functional segment 10 can be configured as a pre-plug segment, performing its corresponding function as a pre-plug segment. When the functional segment 10 is located near the lip end, the functional segment 10 can be configured as any one of a cooling segment, a support segment, or a filtering segment, performing its corresponding function. When there are multiple functional segments 10, the multiple functional segments 10 can respectively replace the pre-plug segment, cooling segment, support segment, and filtering segment. In this embodiment, each substructure 11 is designed only with reference to the structure to be replaced, and the function of each substructure 11 is the same.

[0083] For example, when the functional segment 10 is located near the lip end of the matrix segment 20, the multiple substructures 11 can be designed with reference to the structure and function of any at least two of the cooling segment, support segment, and filter segment. The functions of the multiple substructures 11 are inconsistent, so that the formed functional segment 10 can simultaneously have the functions of any at least two of the cooling segment, support segment, and filter segment.

[0084] In some embodiments, each substructure 11 is loaded with a fragrance substance, and the fragrance substances loaded on each substructure 11 are different.

[0085] Thus, a single functional segment 10 can combine multiple fragrance substances, allowing users to experience a rich and multi-layered aroma during inhalation. The combination of multiple fragrance substances can create more complex and appealing scents. These fragrance substances are distributed from the inside out according to their volatility, forming a barrier through the outer substructure 11, slowing down the evaporation rate of the fragrance substances loaded on the inner substructure 11, thereby prolonging the duration of the aroma. Furthermore, as inhalation time increases, the less volatile fragrance substances in the outer layer are gradually consumed, while the more volatile fragrance substances in the inner layer are gradually released through the outer layer, creating a gradual aroma change process. This reduces the likelihood of premature release of highly volatile fragrance substances leading to a bland aroma later, achieving a rich and lasting fragrance experience.

[0086] For example, please refer to Figures 1 to 20 Functional segment 10 has a mirror-symmetric structure.

[0087] Mirror symmetry refers to the phenomenon that an object or shape can perfectly overlap with itself after being reflected by a plane of symmetry.

[0088] In this embodiment, the functional segment 10 is formed as a mirror-symmetric structure, which can reduce manufacturing difficulty, simplify the production process, and improve production efficiency.

[0089] In some embodiments, functional segment 10 is a one-piece co-extruded structure.

[0090] Co-extrusion is a technique that involves simultaneously extruding two or more different materials through the same die. These materials can have different physical or chemical properties. In co-extrusion, each material enters the extruder through a separate feeding system, and then they are combined at the die and extruded together to form a single composite structure.

[0091] In this embodiment, the functional segment 10 uses co-extrusion molding to join the various substructures 11 together radially. All substructures 11 are extruded simultaneously in one operation, resulting in a tight bond between them. This reduces unevenness caused by subsequent physical connections, reduces assembly steps, and increases the structural strength of the functional segment 10. Simultaneously, it increases the design flexibility of the functional segment 10 without affecting overall performance. Furthermore, it reduces overall production costs and waste rate.

[0092] In some embodiments, the outer contour of functional segment 10 has a columnar structure. This reduces manufacturing difficulty.

[0093] It should be noted that the columnar structure can be cylindrical, elliptical, or rectangular. For an example, please refer to [link to relevant documentation]. Figures 1 to 20 The outer contour of functional segment 10 is cylindrical.

[0094] In some embodiments, please refer to Figures 5 to 8 , Figures 15 to 17 The innermost substructure 11 has a hollow channel 10a enclosed within the functional section 10.

[0095] Thus, functional segment 10 can be roughly formed as a hollow tubular structure. In this embodiment, the hollow channel 10a increases the aerosol flow area, thereby slowing down the aerosol flow rate, facilitating aerosol cooling, and making the aerosol's operating temperature more suitable. It also reduces the overall weight of functional segment 10. In this embodiment, functional segment 10 can serve as both a support segment and / or a cooling segment for the aerosol-generated product 100.

[0096] In other embodiments, please refer to Figures 1 to 4 , Figures 11 to 14 , Figures 18 to 20 The innermost substructure 11 is formed as a solid structure.

[0097] Here, the solid structure can be a structure that does not form an airflow channel inside, that is, it cannot allow aerosols to pass through. In this case, the aerosols can be allowed to pass through by setting the following through hole 11a in the innermost substructure 11, or the through hole 11a can be omitted. There is no restriction here.

[0098] Of course, the solid structure can also be a solid cellulose acetate structure, that is, a structure filled with cellulose acetate bundles. In this case, there are gaps between the cellulose acetate bundles to form airflow channels. In this embodiment, the innermost substructure 11 may or may not have the following through holes 11a, and there is no limitation on this.

[0099] In this embodiment, the innermost substructure 11 is formed as a solid structure. On the one hand, this can increase the structural strength of the functional segment 10. On the other hand, it facilitates the adjustment of the suction resistance of the aerosol-generated product, thereby improving the user's suction experience.

[0100] In this embodiment, functional segment 10 can serve as a filter segment and / or a pre-plug segment to filter and screen aerosol particles and adsorb condensate, etc.

[0101] In some embodiments, at least one substructure 11 is provided with at least one through hole 11a, which extends through the substructure 11 axially.

[0102] Here, all substructures 11 may be provided with through holes 11a, or some substructures 11 may be provided with through holes 11a, while other substructures 11 may not be provided with through holes 11a.

[0103] In this embodiment, the through-hole 11a facilitates airflow and also adjusts the suction resistance of the aerosol generating product 100, improving the user experience. When the functional section 10 serves as a filter section and / or a pre-plug section, the size of the through-hole 11a can be smaller to screen the aerosol particle size.

[0104] The number of through holes 11a provided on a substructure 11 can be one or more. The number of through holes 11a provided on different substructures 11 can be the same or different, and the shape and / or size of the through holes 11a can be the same or different, without any restrictions.

[0105] For example, please refer to Figures 1 to 4 , Figures 11 to 14 In an embodiment where the innermost substructure 11 is formed as a solid structure, the innermost substructure 11 is provided with a through hole 11a, which facilitates the passage of aerosols and allows for the screening of aerosol particle size through the through hole 11a.

[0106] For example, please refer to Figures 18 to 20 In the embodiment where the innermost substructure 11 is formed as a solid structure, the innermost substructure 11 does not have a through hole 11a. This can appropriately increase the suction resistance and adsorb the condensate, thereby improving the suction experience.

[0107] For example, please refer to Figures 5 to 7In an embodiment where the inner wall of the innermost substructure 11 forms a hollow channel 10a within the functional segment 10, the innermost substructure 11 does not have a through hole 11a. This ensures the structural strength of the functional segment 10 and facilitates cooling and support of the functional segment 10.

[0108] For example, please refer to Figures 8 to 10 , Figures 15 to 17 In an embodiment where the inner wall of the innermost substructure 11 surrounds the functional section 10 with a hollow channel 10a, the innermost substructure 11 is provided with a through hole 11a, which increases the aerosol flow area and facilitates the release of aerosols.

[0109] The shape of the through hole 11a is not limited; it can be a circular hole, a square hole, a triangular hole, etc. There are no restrictions here.

[0110] In some embodiments, there are two substructures 11, and the thickness ratio of the outermost substructure 11 to the innermost substructure 11 is 0.1 to 5, for example, 0.1, 0.3, 0.6, 0.8, 1, 1.5, 1.9, 2, 2.5, 2.8, 3, 3.2, 3.5, 4, 4.4, 4.7, 5, etc.

[0111] For example, please refer to Figure 2 and Figure 4 The thickness T1 of the outermost substructure 11 is less than the thickness T2 of the innermost substructure 11.

[0112] For example, please refer to Figure 6 The thickness T1 of the outermost substructure 11 is greater than the thickness T2 of the innermost substructure 11.

[0113] When the ratio of the thickness of the outermost substructure 11 to the thickness of the innermost substructure 11 is small, the outermost substructure 11 is thinner and the innermost substructure 11 is thicker. This allows the innermost substructure 11 to carry more volatile fragrance substances, such as hydrophobic fragrance substances. On the one hand, the outermost substructure 11 protects the innermost substructure 11, slowing down the release rate of the fragrance substances in the inner layer and providing a long-lasting fragrance effect. On the other hand, it also facilitates providing users with a strong fragrance experience.

[0114] When the ratio of the thickness of the outermost substructure 11 to the thickness of the innermost substructure 11 is large, the innermost substructure 11 is thinner and the outermost substructure 11 is thicker. This allows the outermost substructure 11 to be loaded with more volatile fragrance substances, such as hydrophilic fragrance substances. On the one hand, this helps to better mitigate the release of fragrance substances from the inner layer and protect the thermal decomposition of the inner substructure 11. On the other hand, it can provide a more consistent aroma intensity during inhalation and increase the aroma's persistence.

[0115] It should be noted that the aforementioned hydrophobic fragrance substances, also known as lipophilic or oil-soluble fragrance substances, have low polarity and high fat solubility, making them easier to transform from liquid or solid to gaseous states, and they are highly volatile. At the same time, hydrophobic fragrance substances have strong antioxidant properties and are more stable than hydrophilic fragrance substances, helping to extend shelf life. The aforementioned hydrophilic fragrance substances, also known as water-soluble fragrance substances, have low volatility, facilitating the continuous release of aroma over a longer period.

[0116] By placing the hydrophobic fragrance substance in the innermost substructure 11 and the hydrophilic fragrance substance in the outermost substructure 11, the influence of external temperature fluctuations on the hydrophobic fragrance substance can be reduced, the probability of rapid volatilization due to high temperature can be reduced, and different fragrance substances can be released sequentially from the outside to the inside through the substructure 11, forming a gradual fragrance change process and achieving a complex fragrance of top, middle and base notes.

[0117] Therefore, in this embodiment, the ratio of the thickness of the outermost substructure 11 to the thickness of the innermost substructure 11 is set to facilitate meeting the loading requirements of different fragrance substances and the need for sustained release, thereby increasing the design flexibility of the functional segment 10.

[0118] Of course, when the number of substructures 11 exceeds two, the ratio of the thickness of each substructure 11 can also be arranged according to the type of fragrance substance, and there is no restriction here.

[0119] For example, when there are two substructures 11, the two substructures 11 can be bonded together by non-covalent bonds. This avoids the problem of chemical incompatibility between different materials, reduces material degradation or performance changes caused by chemical reactions, and achieves multi-material compatibility. At the same time, non-covalent bonding does not require complex chemical reactions or high-temperature and high-pressure conditions, making the manufacturing process of functional segment 10 simpler and less costly. In addition, the non-covalent bond setting also makes it easier to adjust the release rate of fragrance substances by means of temperature, etc.

[0120] Non-covalent bonds include van der Waals forces, ionic bonds, hydrophobic bonds, hydrogen bonds, etc.

[0121] Van der Waals forces are weak forces formed by instantaneous dipole interactions or polarization attraction. They typically arise between nonpolar molecules.

[0122] Ionic bonds are formed by the electrostatic attraction between ions with opposite charges, and are typically formed between metal and nonmetal atoms or between positively and negatively charged organic molecules. For example, the bond between sodium ions and chloride ions, or between positively charged chitosan and negatively charged sodium carboxymethyl cellulose, is an ionic bond.

[0123] Hydrophobic bonds are interactions formed between hydrophobic molecules in aqueous solutions due to their aggregation.

[0124] A hydrogen bond is a bond force formed between a hydrogen atom and other strongly electronegative atoms (such as oxygen, nitrogen, or fluorine).

[0125] In some embodiments, the number of substructures 11 is at least three, and any two adjacent substructures 11 are bonded by ionic bonds.

[0126] Ionic bonds are formed by the electrostatic attraction between ions with opposite charges, and are typically formed between metal and nonmetal atoms or between positively and negatively charged organic molecules. For example, the bond between sodium ions and chloride ions, or between positively charged chitosan and negatively charged sodium carboxymethyl cellulose, is an ionic bond.

[0127] It is understandable that when a three- or more-layered substructure 11 is integrally molded into a functional segment 10, the molding difficulty will be greater than that of a two-layered substructure 11.

[0128] Therefore, by making any two adjacent substructures 11 bonded by ionic bonds, it is possible to have sufficient bonding strength between any two adjacent substructures 11, thereby increasing the molding stability and reliability of the functional segment 10.

[0129] Of course, when the number of substructures 11 is at least three, the substructures 11 can also be combined in other ways, as long as the multi-layer substructures 11 can be stably formed into functional segments 10.

[0130] In some embodiments, the outermost substructure 11 is a hydrophilic structure. That is, the outermost substructure 11 is made of a hydrophilic material, which facilitates the loading of hydrophilic fragrance substances.

[0131] The innermost substructure 11 is a hydrophobic structure. That is, the innermost substructure 11 is made of hydrophobic material, which facilitates the loading of hydrophobic fragrance substances. This enables a gradual fragrance change process, achieving a complex fragrance with top, middle, and base notes.

[0132] For example, the materials used in the innermost substructure 11 include, but are not limited to, polylactic acid, polyvinyl alcohol, cellulose acetate, etc.

[0133] For example, the outermost substructure 11 may be made of materials including but not limited to hydrophilic polymers, polysaccharides and their derivatives.

[0134] When there are three substructures 11 bonded by ionic bonds, the outermost substructure 11 can be a hydrophilic material with anionic structures, such as a negatively charged polymer with carboxyl, phosphate, or sulfate groups. The middle substructure 11 can be a hydrophilic or hydrophobic material with cationic structures, such as positively charged polymers like chitin or chitosan. This achieves layer-by-layer bonding driven by ionic bonds.

[0135] Of course, when the number of substructures 11 exceeds three, they can also be bonded layer by layer through ionic bonds, similar to the above method. Further details will not be elaborated here.

[0136] The following is a brief description of functional segment 10 of this application in conjunction with eight embodiments.

[0137] First embodiment:

[0138] Please see Figures 1 to 2 The functional segment 10 is cylindrical and includes two substructures 11. The two substructures 11 are stacked radially. The innermost substructure 11 is solid. Both the innermost and outermost substructures 11 are provided with through holes 11a, which are circular holes. The diameter of the through hole 11a of the outermost substructure 11 is larger than that of the through hole 11a of the innermost substructure 11.

[0139] Second embodiment:

[0140] Please see Figures 3 to 4 Unlike the first embodiment, the through hole 11a on the innermost substructure 11 is formed as a square hole and is larger than the through hole 11a on the outermost substructure 11.

[0141] Third embodiment:

[0142] Please see Figures 5 to 7 Unlike the first embodiment, the inner wall of the innermost substructure 11 defines a hollow channel 10a within the functional segment 10, and the innermost substructure 11 does not have a through hole 11a, while the through hole 11a of the outermost substructure 11 is formed as a triangular hole.

[0143] Fourth embodiment:

[0144] Please see Figures 8 to 10 Unlike the first embodiment, the innermost substructure 11 has a hollow channel 10a defined by the inner wall of the functional segment 10.

[0145] Fifth embodiment:

[0146] Please see Figures 11 to 12 The functional segment 10 is cylindrical and includes three substructures 11. The three substructures 11 are stacked radially. The innermost substructure 11 is solid. Each substructure 11 has a through hole 11a. The through holes 11a of the outermost and innermost substructures 11 are round holes. The diameter of the through hole 11a of the outermost substructure 11 is larger than that of the through hole 11a of the innermost substructure 11. The through hole 11a of the middle substructure 11 is square, and the cross-sectional area of ​​the square hole is larger than that of the cross-sectional area of ​​the through hole 11a of the outermost substructure 11.

[0147] Sixth embodiment:

[0148] Please see Figures 13 to 14 Unlike the fifth embodiment, the through hole 11a of the middle substructure 11 is formed as a circular hole and is larger than the diameter of the outermost through hole 11a.

[0149] Seventh embodiment:

[0150] Please see Figures 15 to 17 Unlike the fifth embodiment, the inner wall of the innermost substructure 11 defines a hollow channel 10a.

[0151] Eighth embodiment:

[0152] Please see Figures 18 to 20 The functional segment 10 is cylindrical and includes four substructures 11. The four substructures 11 are stacked radially. The innermost substructure 11 is solid. The three substructures 11 other than the innermost substructure 11 are provided with through holes 11a, which are circular holes.

[0153] Please see Figures 21 to 25 This application provides an aerosol generating article 100, which includes a matrix segment 20 and a functional segment 10 in any embodiment of this application.

[0154] The matrix segment 20 is used to generate aerosols, and the matrix segment 20 includes a distal lip end and a proximal lip end arranged opposite each other along the axial direction.

[0155] Functional segment 10 is located near the lip and / or far the lip.

[0156] It should be noted that the aerosol generating article 100 adopts the functional segment 10 of any embodiment of this application, and the aerosol generating article 100 has all the advantages of the functional segment 10 of that embodiment, which will not be elaborated here.

[0157] For example, the matrix segment 20 has an air passage opening that extends axially through at least one end of the matrix segment 20. In this way, aerosols generated by the matrix segment 20 can be released directly from the air passage opening, and the aerosols have sufficient release space, thereby improving the utilization rate of the aerosols.

[0158] It is understandable that the matrix segment 20 having an airway opening that passes through at least one end of the matrix segment 20 along the axial direction includes a variety of cases.

[0159] The first type: the airway hole only passes through the matrix segment 20 and faces the distal lip end along the axis. In other words, the airway hole is formed as a blind hole, with one end open and the other end closed. Air from the external environment can enter the airway hole and carry away the aerosol generated by atomization.

[0160] The second type: the airway opening only passes through the end of the matrix segment 20 facing the lip end. In other words, the airway opening is formed as a blind opening, with one end open and the other end closed. Air from the external environment can carry aerosols and flow directly out of the matrix segment 20 through the airway opening.

[0161] The third type: the airway pores penetrate both ends of the matrix segment 20 along the axial direction. That is to say, the airway pores penetrate both the proximal and distal lip ends, and the airway pores are open at both ends. Air from the external environment enters the airway pores, carries away the aerosols, and flows out, resulting in high aerosol utilization.

[0162] There is no limit to the number of airway openings; there can be one, two, or more.

[0163] Understandably, micropores are formed in the matrix segment 20, and these micropores are interconnected to form micro-airways. Some of the micropores communicate with the airway pores, while other micro-airways directly pass through the proximal and distal lip ends of the matrix segment 20. This allows aerosols to be expelled from the matrix segment 20 in multiple ways. For example, aerosols generated after heating the matrix segment 20 can directly enter the airway pores and be entrained and expelled by air from the external environment; alternatively, air from the external environment can directly enter the micro-airways and expel the aerosols within them; or, the aerosols can enter the airway pores from the micro-airways.

[0164] It is understood that the interconnection between micropores can be partial or non-interconnected, or all micropores can be interconnected. For example, in an embodiment where the matrix segment 20 is a particle aggregate, the gaps between the particles constitute the micropores, wherein the size of the micropores is determined by the gaps between the particles of the matrix segment 20.

[0165] It should be noted that airway pores are pores in a macroscopic sense, which can be seen with the naked eye, while micropores are pores in a microscopic sense, which cannot be seen with the naked eye.

[0166] The air pores and micropores can increase the surface area of ​​the matrix section 20, facilitating heat transfer and improving heating efficiency. When the aerosol-generating matrix within the matrix section 20 is heated, it releases aerosols, which leave the matrix section 20 under the negative pressure generated by the user's suction. The air pores and micropores can reduce the suction resistance of the user's suction, improving the user experience and reducing the adverse effects of condensed aerosol residue in the matrix section 20 on airflow.

[0167] In some embodiments, the number of functional segments 10 may be one; for example, please refer to [link to relevant documentation]. Figure 21 Functional segment 10 is located near the lip end of matrix segment 20. In this embodiment, matrix segment 20 can generate aerosol by ignition. The user can hold functional segment 10 for suction. Functional segment 10 can serve as a filter segment.

[0168] For example, please refer to Figure 22 Functional segment 10 is located near the lip end of matrix segment 20. In this embodiment, matrix segment 20 can be used in conjunction with an aerosol generating device to generate aerosols by heating without combustion. Functional segment 10 can serve as a filter segment.

[0169] In other embodiments, there are multiple functional segments 10, with at least one functional segment 10 disposed near the lip end and at least one functional segment 10 disposed far from the lip end.

[0170] Thus, the functional segment 10 of this application embodiment can be located both near the lip end and far the lip end.

[0171] For example, there are two functional segments 10, one functional segment 10 is located at the distal lip end and the other functional segment 10 is located at the proximal lip end. The functional segment 10 located at the distal lip end can serve as a pre-plug segment, and the functional segment 10 located at the proximal lip end can serve as any one of a filtering segment, a cooling segment, or a support segment.

[0172] In this embodiment, the aerosol-generated product 100 can be a three-segment combined structure, a four-segment combined structure, or a five-segment combined structure, etc., and there is no limitation here.

[0173] For example, please refer to Figure 23 The aerosol generating product 100 has a three-section combined structure. There are two functional sections 10. One functional section 10 is located at the distal lip end of the matrix section 20 as a pre-plug section, and the other functional section 10 is located at the proximal lip end of the matrix section 20 as a filter section.

[0174] Taking the functional segment 10 located near the lip end as a filter segment as an example, when the aerosol generating article 100 has a three-segment combined structure, there are no other segments between the functional segment 10 located near the lip end and the matrix segment 20; when the aerosol generating article 100 has a four-segment combined structure, a support segment or a cooling segment may be provided between the functional segment 10 located near the lip end and the matrix segment 20, and the structure of the support segment or cooling segment is different from the structure of the functional segment 10 in the embodiment of this application; when the aerosol generating article 100 has a five-segment combined structure, a support segment and a cooling segment may be provided between the functional segment 10 located near the lip end and the matrix segment 20, and the structure of the support segment and the cooling segment is different from the structure of the functional segment 10 in the embodiment of this application, and the positions of the support segment and the cooling segment relative to the matrix segment 20 can be interchanged.

[0175] For example, there are three functional segments 10, one functional segment 10 is located at the distal lip end, and two functional segments 10 are located at the proximal lip end of the matrix segment 20. The functional segment 10 located at the distal lip end of the matrix segment 20 can serve as a pre-plug segment, and the functional segment 10 located at the proximal lip end of the matrix segment 20 can serve as any two of the following: a filtering segment, a cooling segment, and a support segment.

[0176] In this embodiment, the aerosol-generated product 100 can be a four-segment or five-segment combination structure, etc., and there is no limitation.

[0177] For example, please refer to Figure 24 The aerosol generating product 100 has a four-segment combined structure. There are three functional segments 10. One functional segment 10 is located at the distal lip end of the matrix segment 20 as a front plug segment. The other two functional segments 10 are located at the proximal lip end of the matrix segment 20. Along the direction from the distal lip end of the matrix segment 20 to the proximal lip end of the matrix segment 20, they serve as a cooling segment (or support segment) and a filtering segment, respectively.

[0178] For example, there are four functional segments 10, one functional segment 10 is located at the distal lip end, and three functional segments 10 are located at the proximal lip end. The functional segment 10 located at the distal lip end can serve as a pre-plug segment, and the functional segments 10 located at the proximal lip end can serve as a filtering segment, a cooling segment, and a support segment, respectively.

[0179] For example, please refer to Figure 25 The aerosol generating product 100 has a five-segment combined structure. There are four functional segments 10. One functional segment 10 is located at the distal lip end of the matrix segment 20 as the pre-plug segment. The other three functional segments 10 are located at the proximal lip end of the matrix segment 20. Along the direction from the distal lip end of the matrix segment 20 to the proximal lip end of the matrix segment 20, they serve as the support segment, cooling segment, and filtration segment in sequence.

[0180] In some embodiments, please refer to Figure 24 and Figure 25The aerosol-generating article 100 includes an encapsulation layer 30, which encapsulates at least a portion of the structure of the matrix segment 20 and the functional segment 10.

[0181] The wrapping layer 30 wraps around the outer periphery of at least a portion of the structure of the matrix segment 20 and the functional segment 10, meaning that the wrapping layer 30 wraps around the outer periphery of the matrix segment 20 and at least a portion of the outer periphery of the functional segment 10, which is beneficial to the reliability of the connection between the matrix segment 20 and the functional segment 10.

[0182] The coating layer 30 has a certain degree of hardness, which can protect the matrix section 20 and reduce the surface area of ​​the matrix section 20 directly exposed to the outside world. This reduces the probability of the matrix section 20 becoming damp and deteriorating due to contact with air. At the same time, it helps to reduce the probability of the matrix section 20 coming into contact with other components of the aerosol generation device and causing pollution.

[0183] The material of the wrapping layer 30 is not limited, and may be one or more of the following materials: fiber paper, metal foil, metal foil composite fiber paper, polyethylene (PE), polyethylene composite fiber paper, PBAT (Poly(butylene adipate-co-terephthalate)).

[0184] It should be noted that when at least one functional segment 10 is located near the lip end of the matrix segment 20, and the encapsulation layer 30 covers the entire outer wall of the functional segment 10, the user can directly inhale the aerosol by holding the encapsulation layer 30 in their mouth. When the encapsulation layer 30 covers only part of the outer wall of the functional segment 10, the user can directly inhale the aerosol by holding the part of the functional segment 10 exposed outside the encapsulation layer 30 in their mouth. Of course, the user can also attach a mouthpiece to the functional segment 10 and inhale the aerosol through the mouthpiece.

[0185] It should be noted that the encapsulation layer 30 can be a single layer, that is, a single encapsulation layer 30 can simultaneously encapsulate the matrix segment 20 and the functional segment 10.

[0186] Of course, the encapsulation layer 30 can also be multi-layered. The matrix segment 20 and the functional segment 10 can each be encapsulated by at least one encapsulation layer 30, resulting in a multi-segment structure. The multi-segment structure is then encapsulated by one or more encapsulation layers 30 to obtain the aerosol-generated product 100. In this embodiment, when there are multiple functional segments 10, the multiple functional segments 10 can each be encapsulated by at least one encapsulation layer 30, or the functional segments 10 located near the lip end of the matrix segment 20 can be simultaneously encapsulated together by at least one encapsulation layer 30. There are no restrictions on this.

[0187] This application provides an aerosol generation system, including an aerosol generation device and an aerosol generation article 100 according to any embodiment of this application.

[0188] The aerosol generating device includes a heating component, and the matrix section 20 generates aerosols under the heating action of the heating component.

[0189] The way the aerosol generating article 100 is coupled with the aerosol generating device is not limited. For example, the aerosol generating article 100 and the aerosol generating device are coupled by plugging and unplugging.

[0190] It should be noted that when the aerosol generation system adopts the aerosol generation article 100 of any embodiment of this application, the aerosol generation system has all the advantages of the aerosol generation article 100 of that embodiment, which will not be elaborated here.

[0191] In the description of this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this application, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine different embodiments or examples described in this application, as well as features of different embodiments or examples.

[0192] The above description is merely a preferred embodiment of this application and is not intended to limit the application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A functional segment applied to aerosol-generating products, characterized in that, The functional segment is an integral structure, and the functional segment includes multiple substructures. The multiple substructures are arranged in a radial stack along the functional segment. At least two of the substructures are made of different materials, and at least one of the substructures is loaded with a fragrance substance.

2. The functional segment according to claim 1, characterized in that, The materials of any two adjacent substructures in the plurality of substructures are different.

3. The functional segment according to claim 1, characterized in that, Each of the substructures is loaded with a fragrance substance, and the fragrance substances loaded on each of the substructures are different; And / or, the functional segment is an integral co-extruded structure; And / or, the outer contour of the functional segment has a columnar structure.

4. The functional segment according to claim 1, characterized in that, The inner wall of the innermost substructure forms a hollow channel within the functional section; Alternatively, the innermost substructure may be formed as a solid structure.

5. The functional segment according to claim 1, characterized in that, The number of substructures is two, and the thickness ratio of the outermost substructure to the innermost substructure is 0.1 to 5.

6. The functional segment according to claim 1, characterized in that, The number of substructures is at least three, and any two adjacent substructures are bonded by ionic bonds.

7. The functional segment according to claim 5 or 6, characterized in that, The outermost substructure is a hydrophilic structure; the innermost substructure is a hydrophobic structure.

8. The functional segment according to any one of claims 1-6, characterized in that, At least one of the substructures is provided with at least one through hole, which extends through the substructure axially.

9. An aerosol-generating product, characterized in that, include: A matrix segment for generating aerosols, the matrix segment comprising a distal lip end and a proximal lip end disposed opposite each other along an axial direction; And the functional segment according to any one of claims 1-8, wherein the functional segment is disposed at the proximal lip end and / or the distal lip end.

10. The aerosol-generating article according to claim 9, characterized in that, The number of the functional segments is multiple, with at least one functional segment disposed at the proximal lip end and at least one functional segment disposed at the distal lip end; And / or, the aerosol-generating article includes an encapsulation layer that encapsulates the periphery of at least a portion of the structure of the matrix segment and the functional segment.

11. An aerosol generation system, characterized in that, include: Aerosol generating apparatus, including heating components; And the aerosol generating article according to any one of claims 9-10, wherein the matrix segment generates an aerosol under the heating action of the heating component.

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