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

Abstract

The application provides a substrate segment, an aerosol generating article and an aerosol generating system. The substrate segment is applied to the aerosol generating article, and the substrate segment comprises at least one aerosol generating substrate, and the aerosol generating substrate comprises a first medium layer, a second medium layer and a functional layer located between the first medium layer and the second medium layer. The two sides of the functional layer are in contact with the first medium layer and the second medium layer respectively, and the functional layer is used for transferring heat to the first medium layer and the second medium layer. The functional layer can quickly absorb and transfer heat, so that the first medium layer and the second medium layer can quickly heat up, thereby accelerating the generation rate of the aerosol. Moreover, since the functional layer is separated from the rest of the aerosol generating substrate, it can maintain the original taste quality of the aerosol unaffected, thereby improving the user experience.

Description

Technical Field

[0001] This application relates to the field of aerosol generation technology, and in particular to a matrix segment, an aerosol generation product, and an aerosol generation system. Background Technology

[0002] Aerosol generating matrices can form aerosols under heating conditions. Aerosols have a large specific surface area, allowing them to rapidly absorb heat and achieve uniform distribution, thus providing a stable and controllable heat distribution environment during heating. Therefore, aerosol generating matrices are widely used in heating technologies that do not require conventional combustion.

[0003] However, the aerosol generating matrix has some drawbacks: First, this matrix has poor thermal conductivity (below 0.5 W / m·K), resulting in a slow heating rate during heating, which in turn affects the rapid generation of aerosols and may weaken the sensory experience for users on their first use. If materials with better thermal conductivity are directly mixed into the aerosol generating matrix, the resulting high temperature will accelerate the release of flavor components, leading to poor consistency in aroma intensity and reduced taste quality. Utility Model Content

[0004] In view of this, this application aims to provide a novel matrix segment, aerosol-generating article, and aerosol-generating system, wherein the matrix segment is provided with a functional layer. This design enables the aerosol-generating matrix to rapidly heat up and quickly release aerosols during the heating process. This effectively improves the taste and quality of the aerosol-generated article, thereby providing a better user experience.

[0005] To achieve the above objectives, this application provides the following technical solution.

[0006] The first aspect of this application provides a matrix segment for use in an aerosol generation article. The matrix segment includes at least one aerosol generation matrix, which includes a first dielectric layer, a second dielectric layer, and a functional layer located between the first dielectric layer and the second dielectric layer. The two sides of the functional layer are in contact with the first dielectric layer and the second dielectric layer, respectively, and the functional layer is used to transfer heat to the first dielectric layer and the second dielectric layer.

[0007] In some embodiments, the functional layer includes a thermally conductive layer with a thermal conductivity greater than that of the first dielectric layer and a thermal conductivity greater than that of the second dielectric layer.

[0008] In some embodiments, the functional layer includes a sensing layer, the permeability of which is greater than that of the first dielectric layer, and the permeability of the sensing layer is greater than that of the second dielectric layer.

[0009] In some embodiments, the functional layer is wrapped around the circumferential surface of the first dielectric layer, and the second dielectric layer is wrapped around the circumferential surface of the functional layer.

[0010] In some embodiments, the first dielectric layer, the functional layer, and the second dielectric layer are stacked sequentially in the thickness direction of the first dielectric layer.

[0011] In some embodiments, the thickness of the first dielectric layer is 0.2 mm to 0.8 mm.

[0012] In some embodiments, the thickness of the second dielectric layer is 0.2 mm to 0.8 mm.

[0013] In some implementations, the thickness of the functional layer is 0.05 mm to 0.5 mm.

[0014] In some embodiments, the aerosol generating matrix has a dimension of 10 mm or more in its extension direction.

[0015] A second aspect of this application provides an aerosol-generating article comprising a matrix segment and an outer coating layer as described in the first aspect. The outer coating layer is wrapped around the circumferential surface of the matrix segment.

[0016] A third aspect of this application provides an aerosol generation system. The aerosol generation system includes an aerosol generation device and the aerosol generation article provided in the second aspect above. The aerosol generation device includes a heating component or a magnetic field generating component.

[0017] This application introduces a functional layer between the first and second media layers. This functional layer can rapidly generate / transfer heat, significantly reducing heat loss within the matrix segment and shortening the heating time. Thanks to this design, the first and second media layers can heat up quickly, thereby accelerating the aerosol generation rate and enhancing the user experience. Simultaneously, because the functional layer is independently configured from the first and second media layers, any adverse effects on the taste and quality of the aerosol can be reduced, further optimizing the user experience. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of an aerosol generation matrix according to an embodiment of this application; Figure 2 yes Figure 1 A top view of the aerosol-generating matrix is ​​shown. Figure 3 This is a schematic diagram of the structure of an aerosol generation matrix according to another embodiment of this application; Figure 4 yes Figure 3 A front view of the aerosol-generating matrix is ​​shown; Figure 5This is a schematic diagram of the structure of an aerosol-generating article according to an embodiment of this application.

[0019] Figure 6 This is a schematic diagram of the structure of the matrix segment according to an embodiment of this application, wherein the aerosol generating matrix is ​​arranged in an orderly manner.

[0020] Figure 7 This is a schematic diagram of the matrix segment of another embodiment of this application, wherein the aerosol generating matrix is ​​arranged in a disordered manner.

[0021] Explanation of reference numerals in the attached figures: 1. Blocking section; 2. Matrix section; 3. Support section; 4. Cooling section; 5. Filtration section; 6. Outer wrapping layer; 21. First medium layer; 22. Functional layer; 23. Second medium layer; 2A. Aerosol generation matrix; 2B. Coating layer. Detailed Implementation

[0022] The technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the embodiments of this application. It should be understood that the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] Throughout this specification, unless otherwise specified, the terminology used herein should be understood as having the meaning commonly used in the art. Therefore, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. In the event of any conflict, this specification shall prevail.

[0024] It should be noted that, in the embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a method or apparatus that includes a list of elements includes not only the elements expressly stated, but also other elements not expressly listed, or elements inherent to implementing the method or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other related elements in the method or apparatus that includes that element.

[0025] It should be noted that the terms "first," "second," and "third" used in the embodiments of this application are merely to distinguish similar objects and do not represent a specific ordering of objects. It is understood that "first," "second," and "third" can be interchanged in a specific order or sequence where permitted. It should be understood that the objects distinguished by "first," "second," and "third" can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in an order other than those described herein.

[0026] Aerosol generating matrices can produce smoke-like aerosols during heating, thus mimicking the smoke effect produced by traditional smoking. In smokeless or low-smoke cigarette applications, these aerosols help increase smoke concentration, providing smokers with an experience closer to traditional smoking. In certain specific applications, aerosols can also act as carriers, carrying nicotine and other chemicals, making them easier to inhale during smoking.

[0027] However, the aerosol generation matrix has some shortcomings: First, the thermal conductivity of this matrix is ​​poor (thermal conductivity less than 0.5 W / m·K), which results in a slow heating rate during the heating process, thus affecting the rapid generation of aerosols and potentially weakening the user experience.

[0028] The disclosed technology involves directly mixing materials with better thermal conductivity into the aerosol generation matrix to increase the aerosol generation rate. However, materials with high thermal conductivity may chemically react with other components in the aerosol generation matrix (such as flavoring components), altering the original taste and flavor and reducing the user experience.

[0029] Therefore, a novel aerosol generation matrix is ​​needed that possesses both good thermal conductivity and excellent taste quality.

[0030] In view of this, the first aspect of this application provides a matrix segment for use in an aerosol generation article. The matrix segment includes at least one aerosol generation matrix. The aerosol generation matrix includes a first dielectric layer, a second dielectric layer, and a functional layer located between the first dielectric layer and the second dielectric layer. The two sides of the functional layer are in contact with the first dielectric layer and the second dielectric layer, respectively. The functional layer is used to transfer heat to the first dielectric layer and the second dielectric layer.

[0031] In this application, the "first dielectric layer" and "second dielectric layer" contain chemical components for generating aerosols. These components can volatilize or react upon heating to generate tiny particles, i.e., generate aerosols.

[0032] In this application, the "functional layer" has excellent thermal conductivity. By placing the functional layer between the first dielectric layer and the second dielectric layer, heat can be rapidly transferred to the first dielectric layer and the second dielectric layer, effectively reducing the probability of local overheating or large temperature gradients, thereby improving the rate and consistency of aerosol formation.

[0033] This application introduces a functional layer between the first and second dielectric layers. This functional layer can rapidly generate / transfer heat, thereby significantly reducing heat loss and shortening the heating time. Thanks to this design, the first and second dielectric layers can heat up quickly, thus accelerating the aerosol generation rate and enhancing the user experience. Simultaneously, because the functional layer is independently configured from the first and second dielectric layers, any adverse effects on the taste and quality of the aerosol are reduced, further optimizing the user experience.

[0034] In some embodiments, the functional layer includes a thermally conductive layer with a thermal conductivity greater than that of the first dielectric layer and the second dielectric layer. The higher thermal conductivity of the thermally conductive layer compared to the first and second dielectric layers facilitates rapid heat absorption and efficient heat transfer, significantly reducing heat loss and shortening heating time. This allows the first and second dielectric layers to heat up quickly, accelerating aerosol generation and enhancing the user experience.

[0035] In some embodiments, the thermally conductive layer includes a thermally conductive material, a first skeleton component, a first adhesive component, a first fragrance component, and a first lubricant component.

[0036] In some embodiments, the thermally conductive material includes at least one selected from graphene, aluminum nitride, ceramics, carbon nanotubes, and metal oxides, wherein the metal oxides include aluminum oxide and / or magnesium oxide. The thermally conductive material has a high thermal conductivity; by adding it, the thermal conductivity of the thermally conductive layer can be improved, enabling rapid and uniform heat transfer and significantly increasing the aerosol generation rate.

[0037] In some embodiments, the first skeleton material component includes at least one of microcrystalline cellulose, ethyl cellulose, hydroxypropyl cellulose, and sodium carboxymethyl cellulose. The first skeleton component can provide a robust framework, thereby increasing the mechanical strength and stability of the thermally conductive layer and preventing deformation or breakage during storage, transportation, and use.

[0038] In some embodiments, the first binder component includes at least one of tamarind seed polysaccharide, xanthan gum, and glucomannan. The first binder component can bond other components in the thermally conductive layer together, which is beneficial for the fabrication and molding process.

[0039] In some embodiments, the first flavoring component includes a flavoring agent encapsulated with β-cyclodextrin, comprising at least one of menthol, raspberry ketone, and vanillin. The addition of the first flavoring component can further optimize the aroma effect of the product, providing a richer and longer-lasting aroma experience.

[0040] In some embodiments, the first lubricant component includes at least one selected from magnesium stearate, sodium stearate, glucose, and sorbitol. The addition of the first lubricant component can reduce friction between the heat-conducting layer and other components, improve the product's slip properties, and facilitate the release of aerosols and the smooth execution of the spraying process.

[0041] In some embodiments, the thermally conductive layer comprises, by weight, 10% to 40% thermally conductive material, 8% to 25% a first binder component, 35% to 50% a first skeleton component, 1% to 20% a first fragrance component, and 1% to 10% a first lubricant component. By controlling the proportions of these components, the thermally conductive layer can effectively transfer heat between the first and second dielectric layers, promoting uniform heating of both layers and optimizing heat distribution. This uniform heat distribution accelerates the aerosol generation rate, enabling the product to produce the desired aroma and smoke in a short time, thus improving the user experience.

[0042] In some embodiments, the thermally conductive material includes graphene, with the graphene content ranging from 15% to 35% by weight of the thermally conductive layer. Graphene is a material with high thermal conductivity; its addition allows for rapid and uniform heat transfer, significantly increasing the aerosol generation rate. Furthermore, by controlling the graphene content within the aforementioned range, a balance between cost and performance can be achieved. For example, the graphene content, by weight of the thermally conductive layer, may be 15%, 20%, 25%, 30%, 35%, or a value within a range of any two of these values.

[0043] In some embodiments, the functional layer includes a sensing layer, the magnetic permeability of which is greater than that of the first dielectric layer and the second dielectric layer. In this implementation, the high magnetic permeability of the sensing layer allows it to generate significant heat under a changing magnetic field, transferring this heat to the first and second dielectric layers. This significantly reduces heat loss and shortens the heating time, enabling the first and second dielectric layers to heat up rapidly, accelerating aerosol generation and enhancing the user experience.

[0044] In some embodiments, the thermal conductivity of the sensing layer is greater than that of the first dielectric layer, and the thermal conductivity of the sensing layer is greater than that of the second dielectric layer.

[0045] In some embodiments, the sensing layer includes an inductive heating material, a second skeleton component, a second adhesive component, a second fragrance component, and a second lubricant component.

[0046] In some embodiments, the induction heating material includes at least one of carbon steel, alloy steel, iron, graphite, silicon carbide, and austenitic stainless steel. When in contact with heat, the induction heating material can rapidly absorb heat and transfer it quickly and evenly, greatly increasing the aerosol generation rate.

[0047] In some embodiments, the second skeleton material component includes at least one of microcrystalline cellulose, ethyl cellulose, hydroxypropyl cellulose, and sodium carboxymethyl cellulose. The second skeleton component provides a robust framework, thereby increasing the mechanical strength and stability of the sensing layer and preventing deformation or breakage during storage, transportation, and use.

[0048] In some embodiments, the second binder component includes at least one of tamarind seed polysaccharide, xanthan gum, and glucomannan. The second binder component can bind other components in the sensing layer together, facilitating the fabrication and molding process.

[0049] In some embodiments, the second flavoring component includes a flavoring agent encapsulated with β-cyclodextrin, comprising at least one of menthol, raspberry ketone, and vanillin. The addition of the second flavoring component can further optimize the aroma of the product, providing a richer and longer-lasting aroma experience.

[0050] In some embodiments, the second lubricant component includes at least one selected from magnesium stearate, sodium stearate, glucose, and sorbitol. The addition of the second lubricant component can reduce friction between the sensing layer and other components, improve the product's slip properties, and facilitate the release of aerosols and the smooth execution of the spraying process.

[0051] In some embodiments, the sensing layer comprises, by weight, 10% to 40% of an inductive heating material, 8% to 25% of a second binder component, 35% to 50% of a second skeleton component, 1% to 20% of a second fragrance component, and 1% to 10% of a second lubricant component. By controlling the proportions of these components, the sensing layer can effectively transfer heat between the first and second dielectric layers, promoting uniform heating of both layers and optimizing heat distribution. This uniform heat distribution accelerates the aerosol generation rate, enabling the product to produce the desired aroma and smoke in a short time, thus improving the user experience.

[0052] Please see Figure 1In some embodiments, the functional layer 22 is wrapped around the circumferential surface of the first dielectric layer 21, and the second dielectric layer 23 is wrapped around the circumferential surface of the functional layer 22. Since the distance between the first dielectric layer 21 and the heat source may be relatively far, making it difficult to be directly heated, this layered wrapping design allows the functional layer 22 to tightly surround the first dielectric layer 21, ensuring that heat can be efficiently and uniformly transferred to the first dielectric layer 21, promoting the rapid generation of aerosols in the first dielectric layer 21.

[0053] Please see Figure 3 In some embodiments, the first dielectric layer 21, the functional layer 22, and the second dielectric layer 23 are stacked sequentially in the thickness direction of the first dielectric layer 21. This stacked structure design, with the functional layer 22 located between the first dielectric layer 21 and the second dielectric layer 23, enables rapid and uniform heat transfer throughout the aerosol generation matrix, thereby accelerating the aerosol generation rate. It also simplifies the manufacturing process and facilitates the maintenance and replacement of each layer (first dielectric layer 21, functional layer 22, and second dielectric layer 23).

[0054] In some embodiments, the thickness of the first medium layer is between 0.2 mm and 0.8 mm. By controlling the thickness of the first medium layer within this range, the processing difficulty, material strength, and heat transfer efficiency of the aerosol generation matrix can be balanced, thereby optimizing the overall performance and user experience of the aerosol generation system. If the thickness of the first medium layer is less than 0.2 mm, the processing difficulty of the first medium layer will increase significantly, and the strength of the first medium layer will also decrease, affecting the aerosol generation rate and taste. Conversely, if the thickness exceeds 0.8 mm, the strength of the first medium layer will be improved, but it is not conducive to rapid heat transfer and uniform distribution, which may lead to a decrease in heat transfer efficiency, affecting the aerosol generation rate and uniform filling effect. For example, the thickness of the first medium layer is 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, or a value between any two of these values.

[0055] In some embodiments, the density of the first dielectric layer is 1.0 g / cm³. 3 Up to 1.5g / cm 3 "Density" refers to the mass of the first dielectric layer per unit volume. For example, the density of the first dielectric layer is 1.0 g / cm³. 3 1.1g / cm 3 1.2g / cm 3 1.3g / cm 3 1.4g / cm 3 1.5g / cm 3 Or the value between any two of them within a range.

[0056] In some embodiments, the quantitative amount of the first dielectric layer is 150 g / cm³. 2 Up to 300g / cm 2 "Quantity" refers to the mass of the first dielectric layer per unit area. For example, the quantity of the first dielectric layer is 150 g / cm³. 2 180g / cm 2 200g / cm 2 220g / cm 2 240g / cm 2 260g / cm 2 280g / cm 2 300g / cm 2 Or the value between any two of them within a range.

[0057] exist Figure 2 In the illustrated embodiment, when the first dielectric layer 21 is cylindrical, its end face is circular, and the thickness of the first dielectric layer 21 can be regarded as the radius H1 of its end face circle. When the first dielectric layer 21 is quasi-cylindrical, that is, when its end face is approximately circular, the thickness of the first dielectric layer 21 can be understood as approximately equivalent to a circle, and the radius of this equivalent circle is defined as the thickness of the first dielectric layer 21.

[0058] exist Figure 2 In the embodiment shown, the end face of the second dielectric layer 23 is designed as a ring structure. In this case, the thickness H2 of the second dielectric layer 23 can be regarded as the distance between the inner ring and the outer ring of the ring.

[0059] exist Figure 3 and Figure 4 In the illustrated embodiment, when the aerosol generating matrix is ​​cubic, and the first dielectric layer 21, the functional layer 22, and the first dielectric layer 23 are stacked, the thickness of the first dielectric layer 21 can be considered as its dimension H1 in the stacking direction. The thickness of the second dielectric layer 22 can be considered as its dimension H2 in the stacking direction.

[0060] In some embodiments, the thickness of the second medium layer is between 0.2 mm and 0.8 mm. By controlling the thickness of the second medium layer 23 within the above range, the processing difficulty, material strength, and heat transfer efficiency of the aerosol generation matrix can be balanced, thereby optimizing the overall performance and user experience of the aerosol generation system. If the thickness of the second medium layer 23 is less than 0.2 mm, the processing difficulty of the second medium layer 23 will increase significantly, and the strength of the second medium layer 23 will also decrease, affecting the aerosol generation rate and taste. Conversely, if the thickness exceeds 0.8 mm, the strength of the second medium layer 23 will increase, but it is not conducive to rapid heat transfer and uniform distribution, which may lead to a decrease in heat transfer efficiency, affecting the aerosol generation rate and uniform filling effect. For example, the thickness of the second medium layer 23 is 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, or a value between any two of these values.

[0061] In some implementations, the thickness of the functional layer is between 0.05 mm and 0.5 mm. Controlling the thickness of the functional layer within this range helps to balance the aerosol generation rate and the amount of aerosol generated, thereby improving the user experience. If the thickness of the functional layer is less than 0.05 mm, the thermal conductivity network of the thermally conductive material may be discontinuous, leading to reduced heat transfer efficiency and thus affecting the aerosol generation rate. Conversely, if the thickness of the functional layer exceeds 0.5 mm, although heat transfer performance may be improved, it will occupy more space, reducing the amount of aerosol generated, and thus affecting the user experience. For example, the thickness of the functional layer is 0.05 mm, 0.06 mm, 0.07 mm, 0.08 mm, 0.09 mm, 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, or a value within the range of any two of these values.

[0062] In some embodiments, the aerosol generating matrix has a dimension greater than or equal to 10 mm in its extension direction.

[0063] In this application, the dimension of the aerosol-generating matrix in its extension direction can be understood as the maximum dimension of the aerosol-generating matrix. See also Figure 1 In embodiments where the aerosol generating matrix is ​​cylindrical, the dimension of the aerosol generating matrix in its extending direction can be understood as the dimension of the aerosol generating matrix in the axial direction. See also Figure 3 and Figure 4 In embodiments where the aerosol generating matrix is ​​cubic, the dimension of the aerosol generating matrix in its extension direction can be understood as the length of the aerosol generating matrix.

[0064] A design where the aerosol generating matrix has a dimension of 10 mm or more in its extension direction helps reduce manufacturing difficulty and improve production efficiency. If this dimension is less than 10 mm, the manufacturing process of the aerosol generating matrix becomes more complex, as shorter designs may require more refined processing techniques and higher precision requirements, increasing production costs and processing difficulty. A dimension of 10 mm or more allows for more conventional manufacturing processes, facilitating mass production, while also improving the structural strength and stability of the product, reducing the risk of breakage or other structural problems due to excessively short dimensions. Furthermore, this size design helps improve the continuity and uniformity of aerosol generation, thereby enhancing the quality of the final product and the user experience. For example, the aerosol generating matrix has a dimension in its extension direction greater than or equal to 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, 20 mm, or any two of these values ​​within a range.

[0065] In some embodiments, at least one of the first and second medium layers comprises a composition, and the composition comprises a third fragrance component, a third skeleton component, a smoke-generating component, and a third binder component.

[0066] The uniform distribution of the third flavor component helps to provide a consistent and long-lasting aroma during aerosol release, enhancing the user experience.

[0067] The third skeleton component can provide a stable structure, helping to maintain the shape and integrity of the aerosol medium layer and preventing it from collapsing or deforming during use.

[0068] The addition of smoke-generating components can control the generation and diffusion of smoke, ensuring that the aerosol product produces the expected amount of smoke when released.

[0069] The third adhesive component can enhance the adhesion between different components in the first and / or second media layers, maintain the overall stability of the product, and prevent component separation.

[0070] In some embodiments, the third flavoring component is selected from one or more of milk, blueberry, peppermint oil, peppermint oil, plant ingredients, solanone, furanone, 2-acetylpyrazine, damascenone, β-ionone, levulinic acid, menthol, menthone, menthone glyceryl ketal, ethyl butyrate, ethyl acetate, ethyl isovalerate, isoamyl acetate, peachaldehyde, methyl cinnamate, and methyl salicylate. Flavorings are used to provide characteristic aromas; therefore, adding the aforementioned types of third flavoring components can impart a specific aroma to the aerosol, enhancing the user's inhalation experience.

[0071] In some embodiments, the third flavoring component includes at least one of mint, milk, and blueberry.

[0072] In some embodiments, the content of the third fragrance component, based on the total mass of the composition, is from 0.1% to 24%. By keeping the content of the third fragrance component within the above range, a suitable fragrance content helps to ensure stable release of aroma, ensuring that the aroma of the product is long-lasting and does not disappear rapidly during use. Exemplarily, the content of the third fragrance component, based on the total mass of the composition, can be 0.1%, 0.20%, 0.30%, 0.40%, 0.50%, 0.60%, 0.65%, 0.70%, 0.75%, 0.80%, 0.85%, 0.90%, 1%, 10%, 20%, 24%, or a value between any two of these values.

[0073] In some embodiments, the third framework component is selected from one or more of biomass-based chemical raw materials, inorganic chemical raw materials, and plant components. The third framework component provides a framework for the aerosol generation matrix, thereby facilitating the formation of raw material components and providing a carrier for other raw material components in the aerosol generation matrix.

[0074] In some embodiments, the biomass chemical raw materials are selected from one or more of starch, cellulose, hemicellulose, and lignin. These biomass chemical raw materials have relatively long chain-like molecular structures, capable of forming microfibrils. These microfibrils interconnect to form a robust network structure, resulting in a framework with good mechanical strength and stability. Furthermore, the network structure formed by these organic chemical raw materials has abundant porosity, providing attachment sites for other raw material components, which is beneficial for improving the quality of the aerosol generation matrix. In addition, these biomass chemical raw materials are widely available, inexpensive, and produce very few harmful substances during heating, further enhancing the safety of the aerosol-generated products.

[0075] In some embodiments, cellulose includes one or more of microcrystalline cellulose, hydroxyethyl cellulose, and hydroxypropyl cellulose. Cellulose refers to a macromolecular polysaccharide composed of glucose. Cellulose has a long chain-like molecular structure, capable of forming microfibrils. These microfibrils interconnect to form a robust network structure, resulting in a skeleton with good mechanical strength and stability. Furthermore, the network structure formed by cellulose has abundant porosity, providing attachment sites for other raw material components, which is beneficial for improving the quality of aerosol-generated products. In addition, the aforementioned cellulose raw materials are widely available, inexpensive, and produce very few harmful substances during heating, further enhancing the safety of aerosol-generated products.

[0076] In some embodiments, hemicellulose includes one or more of hemicellulose xylan, carboxymethyl hemicellulose, and hydroxyalkyl cationic hemicellulose. In some embodiments, lignin includes one or more of syringyl lignin, guaiacyl lignin, and p-hydroxyphenyl lignin.

[0077] In some embodiments, the starch includes one or more of amylopectin, modified starch, and sodium octenyl succinate. Amylopectin refers to a polysaccharide with a dendritic branching structure; its molecules are relatively large, typically composed of several thousand glucose residues. Using starch as the third backbone component facilitates the formation of a structure with numerous micropores after puffing, and the abundant hydrogen bonding provides sufficient hardness and toughness, allowing for further processing of the material.

[0078] In some embodiments, the inorganic chemical raw materials are selected from one or more of metal oxides, calcium carbonate, silicon dioxide, silicates, borates, carbonates, sulfates, phosphates, activated carbon, and carbon fibers. These inorganic chemical raw materials have good processing properties, facilitate composition molding, and can provide a mechanically sound framework for the aerosol generation matrix.

[0079] In some embodiments, the metal oxide is selected from one or more of magnesium oxide, zinc oxide, titanium oxide, iron oxide, aluminum oxide, silver oxide, zirconium oxide, and molybdenum oxide.

[0080] In some embodiments, the plant component is selected from one or more of tobacco raw materials, tobacco fragments, tobacco stems, tobacco dust, and aromatic plants. On the one hand, the aforementioned plant components can provide a natural supporting framework. On the other hand, endogenous substances in the plant components, such as nicotine, enter the human bloodstream, promoting the pituitary gland to produce dopamine, thereby achieving physiological satisfaction, or can provide tobacco aroma or other flavor aromas to aerosol-generated products, enhancing the user experience. In some embodiments, the aromatic plants are selected from one or more of tea leaves, thyme, osmanthus, lemon, lavender, and benzoin. Optionally, the plant component is selected from tobacco raw materials. There are no particular limitations on the form of the aforementioned plant components, and forms conventional in the art can be used. For example, the aforementioned plant components can be in powder form after being crushed.

[0081] In some embodiments, the third skeleton component includes at least one of cellulose, hemicellulose, lignin, tobacco raw material, tobacco fragments, tobacco stems, tobacco dust, and aromatic plants.

[0082] In some embodiments, the content of the third backbone component is 20% to 90% by weight of the total composition. By keeping the content of the third backbone component within the above range, it helps to provide a robust and stable supporting framework for the aerosol-generating matrix and also provides a carrier for other components in the aerosol-generating matrix. Exemplarily, the content of the third backbone component by weight of the total composition can be 20%, 30%, 40%, 50%, 60%, 65%, 70%, 75%, 80%, 85%, 90%, or a value between any two of these values.

[0083] In some embodiments, the third binder component includes one or more of tamarind seed polysaccharide, guar gum, and modified cellulose, wherein the modified cellulose is selected from one or more of sodium carboxymethyl cellulose, carboxymethyl cellulose, hydroxyethyl cellulose, and hydroxypropyl cellulose. The aforementioned third binder component achieves close contact with the interfaces of the various component materials in the composition through wetting, generating intermolecular attraction, thereby serving to bind the powders, liquids, etc., of the component materials. Optionally, the third binder component is selected from one or more of guar gum, sodium carboxymethyl cellulose, carboxymethyl cellulose, hydroxyethyl cellulose, and hydroxypropyl cellulose. Optionally, the binder is selected from one or more of guar gum, sodium carboxymethyl cellulose, and carboxymethyl cellulose.

[0084] In some embodiments, the content of the third adhesive component is 1% to 10% by weight of the total composition. Keeping the content of the third adhesive component within the above range is beneficial for the composition to have a robust and stable structure. Exemplarily, the content of the third adhesive component by weight of the total composition can be 1%, 2%, 5%, 8%, 10%, or a value between any two of these values.

[0085] In some embodiments, the smoke-generating agent component is selected from one or more of the following: monohydric alcohols, dihydric alcohols, polyhydric alcohols, monocarboxylic acids, dicarboxylic acids, or esters formed from polycarboxylic acids and fatty alcohols. Using the above substances as smoke-generating agent components is beneficial for providing a large amount of smoke, thereby increasing the amount of smoke generated by the aerosol-generating matrix.

[0086] In some embodiments, the smoke-generating component is selected from one or more of raspberry ketone, propylene glycol, glycerol, 1,3-butanediol, tetraethylene glycol, triacetin, triethyl citrate, a mixture of diacetins, triethyl citrate, methylparaben, and triglycerides. Optionally, the smoke-generating component is selected from one or more of propylene glycol, glycerol, 1,3-butanediol, and tetraethylene glycol. More preferably, the smoke-generating component is selected from one or more of propylene glycol and glycerol.

[0087] In some embodiments, the smoke-generating agent component includes at least one of monohydric alcohol, polyhydric alcohol, polyester, monocarboxylic acid, and dicarboxylic acid.

[0088] In some embodiments, the content of the smoke-generating component, based on the total mass of the composition, is 5% to 30%. Maintaining the content of the smoke-generating component within this range is beneficial for generating a large amount of smoke and also for improving the processability of the composition, thereby facilitating the formation of the aerosol matrix. Exemplarily, the content of the smoke-generating component, based on the total mass of the composition, can be 5%, 8%, 10%, 12%, 15%, 18%, 20%, 25%, 28%, 30%, or a value between any two of these values. In some alternative embodiments, the content of the smoke-generating component, based on the total mass of the composition, is 5% to 10%.

[0089] In some embodiments, the composition includes, by weight of the total composition, 0.1% to 24% of a third fragrance component, 20% to 90% of a third skeleton component, 5% to 30% of a smoke-generating agent component, and 1% to 10% of a third binder component. This design, by precisely controlling the proportions of the third fragrance component, third skeleton component, smoke-generating agent component, and third binder component, not only ensures that the aerosol product provides adequate aroma and smoke effects, but also enhances the product's physical stability and structural strength, optimizes the user experience, and improves product safety and production efficiency, achieving a balance between cost-effectiveness and performance.

[0090] To further illustrate the effect of the aerosol generating matrix provided in the embodiments of this application, the thermal conductivity, thermal response time, temperature uniformity, thermal penetration depth, total amount of aerosol in the first three puffs, aroma release consistency, nicotine release in the first puff, and aroma intensity decay rate of the existing aerosol generating matrix and the aerosol generating matrix of this application were tested. The test results are recorded in Table 1 and Table 2.

[0091] Table 1:

[0092] The temperature uniformity test in Table 1 refers to measuring the temperatures of the first dielectric layer, the functional layer, and the second dielectric layer, respectively, and recording them as T1, T2, and T3. The difference between the maximum and minimum values ​​of T1, T2, and T3 is the temperature difference.

[0093] Table 2:

[0094] As can be seen, this application introduces a functional layer between the first and second dielectric layers, which facilitates the rapid heating of both layers, thereby accelerating the aerosol generation rate and enhancing the user experience. Simultaneously, since the functional layer is independently configured from the first and second dielectric layers, it reduces any adverse effects on the taste and quality of the aerosol, further optimizing the user experience.

[0095] In some embodiments, the aerosol generating matrix is ​​prepared using a one-piece molding process. This one-piece molding process overcomes the problems of filament shedding, residue loss, and difficulty in cleaning that occur with aerosol generating products during the extraction process. This, in turn, improves the user experience.

[0096] In this application, "integrated molding process" includes one or more of extrusion, casting, injection molding, and 3D printing. Extrusion molding refers to a processing method in which a raw material composition is added to an extruder, and the material is simultaneously heated and plasticized by the action between the extruder barrel and screw, and continuously pushed forward by the screw through the die head to form products or semi-finished products of various cross-sections. The functional components formed by extrusion molding are strip-shaped. Because the composition is an integral structure, the aerosol-generated product remains a unified medium after heating or cessation of heating, preventing disintegration and falling off, thus reducing problems such as filament shedding, residue shedding, and difficulty in cleaning.

[0097] In some embodiments, the aerosol generating matrix has one or more shapes selected from filamentous, sheet-like, or granular forms. Those skilled in the art can adjust the integral molding process to obtain aerosol generating matrices of different shapes according to the desired shape.

[0098] This application also provides an aerosol-generating article, see reference. Figure 5 The aerosol generating article includes a matrix segment 2 and an outer coating layer 6. The matrix segment 2 is the matrix segment provided in the first aspect, and the matrix segment 2 includes a dispersed aerosol generating matrix for generating aerosols; the outer coating layer 6 is wrapped around the circumferential surface of the matrix segment 2.

[0099] It should be noted that a dispersed aerosol-generating matrix refers to numerous scattered aerosol-generating matrices aggregated together by other structures. The dispersed aerosol-generating matrix itself cannot maintain its predetermined shape and structural strength; it requires the assistance of other structures (such as the coating layer described below) to maintain its shape. The coating layer is used to encapsulate the dispersed aerosol-generating matrix. Understandably, the coating layer can constrain the dispersed aerosol-generating matrix, improve the integrity of the matrix segment, and reduce the possibility of the internal aerosol-generating matrix loosening and detaching.

[0100] In this application, the matrix segment 2 is used to generate aerosols. Specifically, the aerosol-generating article is used in conjunction with an aerosol-generating device.

[0101] In some embodiments, the aerosol generating device includes a heating component and a power supply component, the power supply component providing electrical energy to the heating component, the heating component converting the electrical energy into other forms of energy and applying them to the matrix segment 2, thereby heating the matrix segment 2 to generate aerosols for the user to inhale.

[0102] 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 2 to bake and heat the matrix segment 2 from the inside out. Peripheral heating refers to the heating component being positioned around the aerosol-generated product to bake and heat the matrix segment 2 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 specifically limited herein.

[0103] In some embodiments, the aerosol generating device includes a magnetic field generating component and a power supply component. The power supply component provides electrical energy to the magnetic field generating component, which converts the electrical energy into a magnetic field to trigger the functional layer to generate heat in response to changes in the magnetic field. This triggers the first dielectric layer and the second dielectric layer to generate aerosols for the user to inhale.

[0104] There are various ways to generate a magnetic field in a magnetic field generating component. For example, a magnetic field can be generated by passing a current through a coil in an electromagnet. A soft magnetic material can be used as a magnetic core to generate a magnetic field. Of course, the magnetic poles of a permanent magnet or electromagnet can also be aligned to generate a magnetic field, etc., and this application does not specifically limit the methods described herein.

[0105] In some embodiments, the aerosol generating matrix 2A is in any shape, such as strip, sheet, or granules. Multiple aerosol generating matrices 2A can be arranged in an ordered manner within the matrix segment 2, or they can be arranged in a random manner within the matrix segment 2.

[0106] In some specific embodiments, the same matrix segment 2 may simultaneously include aerosol generating matrix 2A of multiple shapes, such as strip-shaped aerosol generating matrix 2A with different cross-sectional shapes, or at least two types of aerosol generating matrix 2A including strip-shaped, sheet-shaped, and granular aerosol generating matrix 2A.

[0107] In one implementation, please refer to Figure 6 Taking the dispersed aerosol generating matrix 2A as an example, the dispersed aerosol generating matrix 2A is wrapped by the coating layer 2B, wherein the dispersed aerosol generating matrix 2A is arranged in an orderly manner.

[0108] In one implementation, please refer to Figure 7 Taking the dispersed aerosol generating matrix 2A as an example, the dispersed aerosol generating matrix 2A is wrapped by the coating layer 2B, wherein the dispersed aerosol generating matrix 2A is arranged in a disordered manner.

[0109] Taking the multiple aerosol-generating matrices 2A constituting matrix segment 2 as strips as an example, the methods of forming matrix segment 2 from multiple aerosol-generating matrices 2A include, but are not limited to, the following two: One method involves cutting the extruded strip-shaped aerosol generating matrix 2A and then rolling it into matrix segment 2 using a rolling machine. The matrix segment 2 is composed of multiple aerosol generating matrices 2A arranged in a disordered manner. Another method involves directly winding the extruded strip-shaped aerosol generating matrix 2A into matrix segment 2 using a winding machine. The matrix segment 2 is composed of multiple aerosol generating matrices 2A arranged in an ordered manner.

[0110] In addition, while the matrix segment 2 includes one or more extruded aerosol generating matrices 2A, it may also include aerosol generating matrices 2A obtained by other molding methods, such as matrices obtained by slurry method, sheet method, roll pressing method, natural tobacco leaf shredding method, etc., without limitation.

[0111] In this application, the two ends of the matrix segment 2 along the axis are the upstream end and the downstream end, respectively. The upstream end refers to the end of the matrix segment 2 that is close to the user's lips when the user uses the aerosol-generated product, and the downstream end refers to the end of the matrix segment 2 that is far away from the user's lips when the user uses the aerosol-generated product.

[0112] In this application, the outer wrapping layer has a certain degree of hardness, which can play a certain protective role for the matrix segment, reduce its surface area directly exposed to the outside world, and thus reduce the probability of it becoming damp and deteriorating due to contact with air.

[0113] The specific material of the outer wrapping layer is not limited, such as one or more combinations of materials such as fiber paper, metal foil, metal foil composite fiber paper, polyethylene (PE), polyethylene composite fiber paper, and PBAT (Poly butylene adipate-co-terephthalate).

[0114] It should be noted that when the outer wrapping layer covers the entire circumferential outer surface of the filter section, the user can directly put the outer wrapping layer in their mouth to inhale the aerosol. When the outer wrapping layer covers part of the circumferential outer surface of the filter section, the user can directly put the part of the filter section exposed outside the outer wrapping layer in their mouth to inhale the aerosol. Of course, the user can also put a mouthpiece on the filter section and inhale the aerosol through the mouthpiece.

[0115] In some embodiments, the aerosol-generating article also includes a functional section.

[0116] This application does not limit the structure of the functional segments. In some exemplary embodiments, the functional segments themselves have numerous micropores, which are interconnected to form micro-channels. It is understood that after the functional segments are formed, the gaps between their raw material components constitute micropores. These micropores are irregular and belong to pores in a microscopic sense. The size of the micropores is determined by the gaps between the powder components after the powder is formed.

[0117] During the aerosol generation process, the generated aerosols can enter the microchannels of the functional section. Under the negative pressure generated by suction, the aerosols are transported to the user for inhalation through the microchannels. In addition, as the aerosols flow through the microchannels, it also helps the functional section capture some substances in the aerosols and has a cooling effect.

[0118] In some implementations, please refer to Figure 5 The functional section includes at least one of the following: sealing section 1, support section 3, cooling section 4, and filtration section 5.

[0119] In this application, the sealing section 1 is mainly used to enable the aerosol generating product to have easy-to-clean or clean-free functions, and to prevent the medium from falling off during production, transportation and suction.

[0120] In this application, the support segment 3 is a structural component of the aerosol-generated product. Its main function is to provide mechanical support, ensuring the structural stability and durability of the aerosol-generated product. The support segment is typically made of a material with sufficient strength and heat resistance, capable of withstanding various stresses generated during production and use, such as thermal expansion, contraction, and mechanical impact. During aerosol generation, the support segment also prevents structural deformation due to thermal expansion, maintaining the geometry and performance of the aerosol-generated product. Furthermore, the design of the support segment takes into account user habits, making the aerosol-generated product comfortable to hold and easy to use.

[0121] In this application, the cooling section 4 is another functional part of the aerosol-generating product. Its main function is to cool the generated aerosol after it is generated, thereby reducing its temperature and ensuring the safety and comfort of the user during inhalation. The cooling section is usually made of a material with good thermal conductivity and heat resistance, which can quickly absorb and transfer heat from the aerosol, thus achieving a temperature reduction. The design of the cooling section may include heat sinks, heat dissipation holes, or other heat dissipation structures to increase the heat dissipation area and efficiency. Through effective cooling design, overheating of the aerosol-generating product can be prevented during use, while also helping to protect the chemical components of the aerosol, avoiding decomposition or changes caused by high temperatures, and ensuring the quality and taste of the aerosol.

[0122] In this application, the filtration section 5 is used to filter aerosols, which can filter out large particulate components and unwanted impurities in the aerosols. The filtered aerosols then flow through the cooling section 4 for cooling.

[0123] The filter material used in filter section 5 includes, but is not limited to, one or more of the following: polyethylene (PE), polylactic acid (PLA), polybutylene adipate terephthalate (PBAT), polypropylene (PP), cellulose acetate, and cellulose acrylic. The materials used in support section 3, cooling section 4, and filter section can be the same or different.

[0124] For example, filter section 5 is a solid cellulose acetate structure, that is, filter section 5 is a solid structure formed of cellulose acetate material, and filter section 5 is provided with filter pores, which are micropores. In other words, filter pores are pores in the microscopic sense. That is to say, the "solid structure" in this application refers to a structure that only has micropores inside and does not have pores in the macroscopic sense.

[0125] In some embodiments, the outer wrapping layer 6 of this application wraps the circumferential surfaces of the matrix section 2, support section 3, cooling section 4, filter section 5, and sealing section 1. Thus, the outer wrapping layer 6 helps improve the reliability of the connection between the sealing section 1, matrix section 2, support section 3, cooling section 4, and filter section 5.

[0126] It should be noted that when the outer wrapping layer covers the entire circumferential outer surface of the filter section, the user can directly put the outer wrapping layer in their mouth to inhale the aerosol; when the outer wrapping layer covers part of the circumferential outer surface of the filter section, the user can directly put the part of the filter section exposed outside the outer wrapping layer in their mouth to inhale the aerosol. Of course, the user can also put a mouthpiece on the filter section and inhale the aerosol through the mouthpiece.

[0127] It should be noted that the outer wrapping layer can be a single layer, meaning that a single outer wrapping layer simultaneously wraps the matrix section, support section, cooling section, filtration section, and sealing section.

[0128] Of course, the outer coating can also be multi-layered. Any one of the matrix segment, support segment, cooling segment, filtration segment, and sealing segment can be wrapped by at least one outer coating layer to obtain a multi-segment structure; or, at least two of the matrix segment, support segment, cooling segment, filtration segment, and sealing segment can be wrapped by at least one outer coating layer to obtain a multi-segment structure, and the multi-segment structure can be further wrapped by one or more outer coating layers to obtain an aerosol-generated product.

[0129] This application also provides an aerosol generation system. The aerosol generation system includes an aerosol generation apparatus with a heating component and the aerosol generation article described above. The matrix section of the aerosol generation article includes an aerosol generation matrix. Specifically, the heating component heats and atomizes the aerosol generation matrix to generate aerosols.

[0130] This application does not limit the specific method by which the heating component generates a matrix from heated aerosols.

[0131] In some embodiments, the heating component is a resistance / electromagnetic heating wire / plate / needle / tube. The heating component is attached to the aerosol generating article. After the heating component is turned on, it transfers heat to the aerosol generating matrix, causing the aerosol generating matrix to generate aerosol.

[0132] In some embodiments, the heating component is an infrared / microwave / laser heating device, which irradiates the aerosol generating article with high-energy infrared / microwave / laser light, thereby raising the temperature of the aerosol generating matrix and causing the aerosol generating matrix to generate aerosols.

[0133] This application does not limit the specific arrangement of the heating element; it can be arranged on the outside of the outer wrapping layer or inserted into the aerosol generating matrix and in contact with the aerosol generating matrix.

[0134] It is understandable that the aerosol generating product is loaded into the aerosol generating device so that the heating component can heat the aerosol generating product. After the aerosol generating matrix in the aerosol generating product is exhausted, it is removed from the aerosol generating device and replaced with a new aerosol generating product.

[0135] Although this application has been described with reference to its specific exemplary embodiments, many different variations, modifications, etc. will become apparent to those skilled in the art.

[0136] By studying the disclosure and the appended claims, those skilled in the art can understand and implement variations of the disclosed embodiments when practicing this application.

Claims

1. A matrix segment used in aerosol-generating products, characterized in that, The matrix segment includes at least one aerosol generating matrix, which includes: a first medium layer, a second medium layer, and a functional layer located between the first medium layer and the second medium layer. The two sides of the functional layer are in contact with the first medium layer and the second medium layer, respectively, and the functional layer is used to transfer heat to the first medium layer and the second medium layer.

2. The matrix segment according to claim 1, characterized in that, The functional layer includes a thermally conductive layer, the thermal conductivity of which is greater than that of the first dielectric layer, and the thermal conductivity of which is greater than that of the second dielectric layer.

3. The matrix segment according to claim 1, characterized in that, The functional layer includes a sensing layer, the permeability of which is greater than that of the first dielectric layer and the permeability of which is greater than that of the second dielectric layer.

4. The matrix segment according to any one of claims 1 to 3, characterized in that, The functional layer is wrapped around the circumferential surface of the first dielectric layer, and the second dielectric layer is wrapped around the circumferential surface of the functional layer.

5. The matrix segment according to any one of claims 1 to 3, characterized in that, In the thickness direction of the first dielectric layer, the first dielectric layer, the functional layer, and the second dielectric layer are stacked sequentially.

6. The matrix segment according to any one of claims 1 to 3, characterized in that, The thickness of the first dielectric layer is 0.2 mm to 0.8 mm, and / or, The thickness of the second dielectric layer is 0.2 mm to 0.8 mm.

7. The matrix segment according to any one of claims 1 to 3, characterized in that, The thickness of the functional layer is 0.05 mm to 0.5 mm.

8. The matrix segment according to any one of claims 1 to 3, characterized in that, The aerosol generating matrix has a dimension greater than or equal to 10 mm in its extension direction.

9. An aerosol-generating product, characterized in that, include: The matrix segment according to any one of claims 1 to 8; An outer wrapping layer is wrapped around the circumferential surface of the matrix segment.

10. An aerosol generation system, characterized in that, include: An aerosol generating device, wherein the aerosol generating device includes a heating component or a magnetic field generating component; The aerosol-generated article according to claim 9.

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