An aerosol-generating article

Abstract

The application provides an aerosol generating article. The aerosol generating article comprises a substrate section, wherein an aerosol generating substrate is arranged in the substrate section; and a temperature reducing section arranged on one side of the substrate section; wherein the temperature reducing section comprises a wrapping layer and a temperature reducing layer; the wrapping layer is arranged to form a hollow columnar shape; and the temperature reducing layer is arranged on the inner surface of the side wall of the wrapping layer, and the specific heat capacity of the material of the temperature reducing layer is 2100 J / (kg·K) to 4500 J / (kg·K). The aerosol generating article can reduce the temperature of the aerosol, improve the consistency of the temperature of the aerosol, improve the smoothness of the aerosol during smoking, and improve the user experience.

Description

Technical Field

[0001] This invention relates to the field of electronic atomization technology, and more particularly to an aerosol-generating product. Background Technology

[0002] A heat-not-burning (HNB) device is a combination of a heating element and an aerosol-generating matrix (treated plant leaf products). The external heating element heats the aerosol-generating matrix to a temperature sufficient to produce aerosols but not hot enough for combustion, thus atomizing the aerosol-generating matrix to form the desired aerosol without combustion.

[0003] However, in existing aerosol-generating products, the cooling section experiences severe adhesion and collapse upon contact with the aerosol, clogging the channels and preventing the aerosol from flowing smoothly through the cooling section. This reduces the cooling surface area of ​​the cooling section, leading to excessively high aerosol temperatures and consequently diminishing the user experience. Summary of the Invention

[0004] This application provides an aerosol generating article, which aims to solve the problem that in existing aerosol generating articles, the cooling section will severely adhere and collapse after contacting the aerosol, blocking the channels and preventing the aerosol from flowing smoothly through the cooling section. This reduces the cooling surface area of ​​the cooling section, resulting in excessively high aerosol temperature and thus reducing the user experience.

[0005] To solve the above-mentioned technical problems, one technical solution adopted in this application is: This application provides an aerosol generating article. The aerosol generating article includes a matrix section, within which an aerosol generating matrix is ​​disposed; and a cooling section disposed on one side of the matrix section; wherein the cooling section includes a coating layer and a cooling layer; the coating layer is configured to form a hollow column; the cooling layer is disposed on the inner surface of the sidewall of the coating layer, and the specific heat capacity of the material of the cooling layer is 2100 J / (kkk℃)~4500 J / (kkk℃).

[0006] In one embodiment, the cooling layer is configured to form a hollow column, and the cooling layer covers the entire inner surface of the sidewall of the wrapping layer.

[0007] In one embodiment, the cooling layer is made of a porous material; the porosity of the cooling layer is 0.2 to 0.8; and / or the thickness ratio of the wrapping layer to the cooling layer is 1:0.5 to 1:30.

[0008] In one embodiment, the porosity of the cooling layer is 0.25 to 0.75.

[0009] In one embodiment, the thickness ratio of the wrapping layer to the cooling layer is 1:0.6 to 1:27.

[0010] In one embodiment, the thickness of the wrapping layer is 0.01 mm to 1 mm.

[0011] In one embodiment, the cooling section consists of the wrapping layer and the cooling layer.

[0012] In one embodiment, the aerosol-generating article is a two-stage process; or

[0013] The aerosol generating product is a three-section product, which further includes a filtration section; the cooling section is located between the matrix section and the filtration section.

[0014] In one embodiment, a housing is also included, in which the matrix section and the cooling section are housed.

[0015] In one embodiment, the material of the wrapping layer includes one or more of the following: fibrous paper, polyethylene (PE), polylactic acid (PLA), and polyethylene terephthalate (PET); and / or

[0016] The cooling layer is made of one or more of the following materials: aerogel porous material, aerogel fiber coating material, porous silica gel, starch, and natural rubber.

[0017] The aerosol generating article of this application includes a matrix section and a cooling section. The cooling section is connected to the matrix section to cool the aerosol generated by atomization of the aerosol generating article within the matrix section. Specifically, the cooling section includes a wrapping layer and a cooling layer, with the wrapping layer forming a hollow column shape. The cooling layer is located on the inner surface of the sidewall of the wrapping layer, and the specific heat capacity of the cooling layer material is 2100 J / (kkk℃) to 4500 J / (kkk℃). Due to the high specific heat capacity, the cooling layer has a certain heat storage effect. When the aerosol flows through this cooling section, the heat loss of the aerosol is significant, thus reducing the internal energy of the aerosol and achieving a cooling effect. Furthermore, as the energy of the aerosol is absorbed and balanced by the cooling layer when it flows through the cooling section, subsequent aerosol temperatures reaching this cooling section are balanced by the structure of the cooling section, thereby improving the temperature consistency of the aerosol. Furthermore, since the cooling section is composed of a cooling layer and a wrapping layer, it will not stick or collapse at high temperatures, thus effectively avoiding the problems of clogging the cooling section channels and excessively high aerosol temperature. This effectively improves the smoothness of aerosol suction and enhances the user experience. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the aerosol-generated article provided in the first embodiment of this application;

[0020] Figure 2 A cross-sectional schematic diagram of the aerosol-generated article provided in the first embodiment of this application;

[0021] Figure 3 This is a schematic diagram of the cooling section provided in the first embodiment of this application;

[0022] Figure 4 This is a cross-sectional schematic diagram of the cooling section provided in the first embodiment of this application;

[0023] Figure 5 This is a schematic diagram of the structure of the aerosol-generated article provided in the second embodiment of this application;

[0024] Figure 6 This is a cross-sectional schematic diagram of the aerosol-generated article provided in the second embodiment of this application. Detailed Implementation

[0025] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0026] The terms "first," "second," and "third" in this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationships and movements between components in a specific orientation (as shown in the figures). If the specific orientation changes, the directional indications also change accordingly. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices.

[0027] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0028] The present application will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] Please see Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of the aerosol-generating article provided in the first embodiment of this application. Figure 2 This is a cross-sectional schematic diagram of the aerosol generating article provided in the first embodiment of this application. The aerosol generating article 10 includes a cooling section 1, a matrix section 2, and a shell 4.

[0030] Matrix segment 2 is used to store the aerosol generation matrix. The aerosol generation matrix is ​​a solid matrix of plant leaves with a specific aroma, which can generate aerosols under heating conditions; the form of the aerosol generation matrix is ​​not limited to ordered solid aerosol generation matrix, disordered solid aerosol generation matrix, and particulate solid aerosol generation matrix.

[0031] A cooling section 1 is located on one side of the matrix section 2 to cool the aerosol formed by atomization in the matrix section 2, preventing the aerosol from becoming too hot. The central axis of the cooling section 1 coincides with the central axis of the matrix section 2. The matrix section 2 and the cooling section 1 are housed within a shell 4 to obtain the aerosol-generating product 10. The shell 4 can be paper-based or other high-temperature resistant materials.

[0032] Specifically, in this embodiment, the length of the cooling section 1 and the length of the substrate section 2 can be equal, for example, 30mm, 20mm, and 15mm respectively.

[0033] Please see Figure 3 and Figure 4 , Figure 3 This is a schematic diagram of the cooling section provided in the first embodiment of this application. Figure 4 This is a cross-sectional schematic diagram of the cooling section provided in the first embodiment of this application. The cooling section 1 includes a cooling layer 11 and a wrapping layer 12.

[0034] The encapsulating layer 12 forms a hollow column. The thickness of the encapsulating layer 12 can be 0.01 mm to 1 mm, for example, 0.02 mm, 0.03 mm, 0.04 mm, 0.05 mm, 0.06 mm, 0.07 mm, 0.08 mm, 0.09 mm, or 1.0 mm. The main materials of the encapsulating layer 12 include one or more of the following: fiber paper, polyethylene (PE), polylactic acid (PLA), and polyethylene terephthalate (PET).

[0035] A cooling layer 11 is disposed on the inner surface of the sidewall of the encapsulation layer 12 and defines channels for the aerosol to flow through, thereby cooling the aerosol flowing through the cooling section 1. In a specific embodiment, the cooling layer 11 covers the entire inner surface of the sidewall of the encapsulation layer 12 and forms a closed-loop cooling layer 11 to simultaneously cool the aerosol flowing through the cooling section 1 from all directions, improving the temperature uniformity of the aerosol. Specifically, the cooling layer 11 can be in the form of a hollow cylinder or a hollow sheet.

[0036] In one specific embodiment, the cooling section 1 is composed of a cooling layer 11 and a wrapping layer 12. The term "composite" refers to bonding the cooling layer 11 and the wrapping layer 12 together to form a denser two-layer structure through adhesive bonding or hot pressing. Therefore, the cooling section 1 has good support strength and can maintain its shape well. This not only supports part of the aerosol generation matrix, eliminating the need for a support section design and reducing costs, but also effectively avoids clogging of the channels of the cooling section 1 and excessively high aerosol temperature at high temperatures. This improves the smoothness of aerosol suction and enhances the user experience.

[0037] The specific heat capacity of the material in the cooling layer 11 ranges from 2100 J / (kkk℃) to 4500 J / (kkk℃). This high specific heat capacity material forms the cooling layer 11, which has a certain heat storage effect to reduce the temperature of the flue gas, thereby improving the uniformity of the flue gas. During use, when the aerosol flows through the cooling section 1, the aerosol experiences significant heat loss. Therefore, the cooling layer 11 can reduce the internal energy of the aerosol, achieving a cooling effect. Furthermore, because the energy of the aerosol is absorbed and balanced by the cooling layer 11 as it flows through the cooling section 1, subsequent aerosol temperatures reaching the cooling section 1 will be balanced by the structure of the cooling section 1, thus improving the uniformity of the aerosol temperature.

[0038] Specifically, the material of the cooling layer 11 can be a porous material. Specifically, the material of the cooling layer 11 can include one or more of the following: aerogel porous material, aerogel fiber coating material, porous silica gel, starch, and natural rubber.

[0039] The thickness ratio of the wrapping layer 12 to the cooling layer 11 ranges from 1:0.5 to 1:30. When the thickness ratio is less than 1:0.5, the temperature of the aerosol flowing through the cooling layer 11 will be too high, affecting the user's suction experience. Conversely, when the thickness ratio is greater than 1:30, the temperature of the aerosol flowing through the cooling layer 11 will drop too much, increasing condensation in the cooling layer 11 area. This would reduce the aerosol utilization rate; therefore, a thickness ratio of 1:0.5 to 1:30 between the coating layer 12 and the cooling layer 11 is a reasonable ratio. For example, the thickness ratio of the coating layer 12 to the cooling layer 11 can be 1:0.7, 1:0.8, 1:0.9, 1:1, 1:1.2, 1:2, 1:3, 1:6, 1:8, 1:9, 1:12, 1:15, 1:18, 1:21, 1:24, 1:27, or 1:30.

[0040] Specifically, the thickness ratio of the wrapping layer 12 to the cooling layer 11 can be in the range of 1:0.6 to 1:27.

[0041] The porosity of the cooling layer 11 should be between 0.2 and 0.8. When the porosity of the cooling layer 11 is below 0.2, the energy absorbed by the aerosol as it flows through the cooling layer 11 in the cooling section 1 is low, leading to a higher aerosol temperature and affecting the user's suction experience. Conversely, when the porosity of the cooling layer 11 is above 0.8, the temperature drop of the aerosol as it flows through the cooling layer 11 area is too large, increasing the condensation rate of the aerosol in the cooling layer 11 area and thus reducing the aerosol utilization rate. Therefore, a porosity range of 0.2 to 0.8 for the cooling layer 11 is reasonable; for example, the porosity of the cooling layer 11 can be 0.3, 0.4, 0.5, 0.6, 0.7, or 0.8.

[0042] Specifically, the porosity of the cooling layer 11 can range from 0.25 to 0.75.

[0043] In a specific embodiment, the aerosol generating product 10 is a two-section structure consisting only of a cooling section 1 and a matrix section 2; and compared with the prior art's three-section structure including a support section, the aerosol generating product 10 has a simple structure and has advantages such as simple manufacturing, simple process flow and low production cost.

[0044] Please refer to further information. Figure 5 and Figure 6 , Figure 5 This is a schematic diagram of the structure of the aerosol-generating article provided in the second embodiment of this application. Figure 6 This is a cross-sectional schematic diagram of the aerosol generating article provided in the second embodiment of this application. The aerosol generating article 10 provided in this embodiment also includes a filter section 3; a cooling section 1 is located between the matrix section 2 and the filter section 3; the filter section 3 is used to filter impurities in the aerosol, and the material of the filter section 3 includes, but is not limited to, cellulose acetate, polylactic acid, polypropylene, and paper filter media; at the same time, it increases the suction resistance to ensure the consistency of suction. In this embodiment, the central axis of the cooling section 1 coincides with the central axis of the matrix section 2 and the central axis of the filter section 3, respectively. The cooling section 1, the matrix section 2, and the filter section 3 are housed in the shell 4 to obtain the aerosol generating article 10.

[0045] In this specific embodiment, the aerosol generating product 10 can be a three-section structure including a cooling section 1, a matrix section 2, and a filtration section 3; compared with the four-section structure of the prior art that also includes a support section, the aerosol generating product 10 has the advantages of simple manufacturing, simple process flow, and low production cost.

[0046] Those skilled in the art will understand that the cooling layer 11 can be further provided in the filter section 3 to further reduce the temperature of the aerosol and avoid the problem of excessively high aerosol temperature.

[0047] The following are the specific performance characteristics of the three aerosol-generating products 10 provided in this application and the relevant experimental results of the control sample K provided in the control group:

[0048] Control group: The control sample K is a commercially available aerosol product. This control sample K has a four-segment structure, specifically including a matrix segment, a support segment, a cooling segment, and a filtration segment. The matrix segment is 12 mm long, the support segment is 8 mm long, the cooling segment (with an internal PLA membrane) is 18 mm long, and the filtration segment is 7 mm long.

[0049] Experimental Group 1: The cooling section 1 of the aerosol-generated product 10 consists of a cooling layer 11 and a coating layer 12. The cooling layer 11 is a silica cooling layer 11, which is formed into a sheet with a porosity of 0.75 and a width of 22.4 mm through a coating molding process, and then rolled into a tube with a diameter of 7.1 mm. The coating layer 12 is a PE polymer film coating layer 12 with a thickness of 0.3 mm. The cooling section 1 is obtained by coating the silica cooling layer 11 with the PE polymer film coating layer 12 and then performing a composite process. In this experimental group, the thickness ratio of the coating layer 12 to the cooling layer 11 is 1:4.

[0050] By connecting the cooling section 1 (30 mm in length) and the matrix section 2 (30 mm in length) along the central axis, the aerosol-generated product 10 can be obtained.

[0051] Experimental Group 2: The cooling section 1 of the aerosol-generated product 10 consists of a cooling layer 11 and a wrapping layer 12. The cooling layer 11 is made of food-grade silicone and is formed into a tubular shape with a porosity of 0.5, a wall thickness of 2 mm, and a diameter of 6.8 mm through extrusion molding. The wrapping layer 12 is a fiber paper wrapping layer with a thickness of 0.2 mm. The cooling section 1 is obtained by wrapping the food-grade silicone cooling layer 11 and the fiber paper wrapping layer 12 together. In this experimental group, the thickness ratio of the wrapping layer 12 to the cooling layer 11 is 1:10.

[0052] By connecting the cooling section 1, which has a length of 25 mm, to the matrix section 2, which has a length of 15 mm, and the filter section 3, which has a length of 10 mm, along the central axis, the aerosol generating product 10 can be obtained.

[0053] Experimental Group 3: The cooling section 1 of the aerosol-generated product 10 consists of a cooling layer 11 and a wrapping layer 12. The cooling layer 11 is an aerogel cooling layer with a porosity of 0.5, a thickness of 2 mm, and a width of 19.8 mm, which is rolled into a tube with a diameter of 6.3 mm. The wrapping layer 12 is a fiber paper wrapping layer with a thickness of 0.15 mm. The cooling section 1 is obtained by wrapping the aerogel cooling layer 11 and the fiber paper wrapping layer 12 together. In this experimental group, the thickness ratio of the wrapping layer 12 to the cooling layer 11 is 1:30.

[0054] By connecting the cooling section 1 (15 mm in length) to the matrix section 2 (15 mm in length) and the filter section 3 (10 mm in length) along the central axis, the aerosol generating product 10 can be obtained.

[0055] The aerosol-generated products 10 obtained from the control group, experimental group 1, experimental group 2, and experimental group 3 were evaluated and tested according to the YC / T138-1998 Sensory Evaluation Standard for Tobacco and Tobacco Products. A group of 15 experts was organized to evaluate the aerosol products from the control group and all aerosol-generated products 10 provided by the three experimental groups and to test their inhalation resistance index. The evaluation and test results are listed in Table 1 below. Table 1 is a schematic table of the evaluation results of aerosol-generated products 10.

[0056] Table 1: Schematic diagram of aerosol product evaluation results

[0057]

[0058] Specifically, as shown in Table 1, compared with the control sample K, the smoke volume score of experimental group 1 increased by 1 point, the smoke flow score increased by 1 point, the uniformity score increased by 1.5 points, and the total score increased by 3.5 points, with improvements in all aspects of performance.

[0059] Compared to control sample K, experimental group 2 showed improvements in smoke volume score by 2 points, smoke flow score by 1 point, uniformity score by 2 points, and total score by 5 points, demonstrating improvements in all aspects of performance.

[0060] Compared to control sample K, experimental group 3 showed improvements in smoke volume score by 1.5 points, smoke flow score by 1.5 points, uniformity score by 2 points, and total score by 5 points, demonstrating improvements in all aspects of performance.

[0061] As can be clearly seen from Table 1, the 10 examples of aerosol-generated products provided by the three experimental groups showed significant improvements in performance in terms of smoke volume, flue gas flow, uniformity, flue gas temperature, and suction resistance, and also showed a significant improvement in overall sensory quality.

[0062] This application discloses an aerosol generating article 10, which includes a matrix section 2 and a cooling section 1. The matrix section 2 contains an aerosol generating matrix; the cooling section 1 is disposed on one side of the matrix section 2 and includes a cooling layer 11 and a coating layer 12; the coating layer 12 is formed into a hollow column shape, and the cooling layer 11 is disposed on the inner surface of the sidewall of the coating layer 12. The specific heat capacity of the material of the cooling layer 11 is 2100 J / (kkk℃) to 4500 J / (kkk℃). Due to the high specific heat capacity, the cooling layer 11 has a certain heat storage effect, thereby reducing the excessively high flue gas temperature and improving the uniformity of the flue gas. When the aerosol flows through the cooling section 1 during use, the aerosol experiences significant heat loss. This allows the cooling layer 11 to reduce the aerosol's internal energy, achieving a cooling effect and reducing aerosol condensation and harmful substances. Furthermore, as the aerosol's energy is absorbed and balanced by the cooling layer 11, subsequent aerosol temperatures reaching the cooling section 1 are also balanced by its structure, improving temperature consistency. In addition, since the cooling section 1 is composed of the cooling layer 11 and the encapsulation layer 12, it will not stick or collapse at high temperatures, effectively preventing blockage of the cooling section 1's channels and excessively high aerosol temperatures. This significantly improves the smoothness of aerosol suction and enhances the user experience. Moreover, compared to the existing four-segment structure of aerosol products, the aerosol generating product 10 provided in this application is a two-segment structure including a cooling segment 1 and a matrix segment 2, or a three-segment structure including a cooling segment 1, a matrix segment 2 and a filtration segment 3. This gives the aerosol generating product 10 advantages such as simple manufacturing, concise process flow and low production cost.

[0063] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. An aerosol-generating product, characterized in that, include: A matrix segment, wherein an aerosol generating matrix is ​​provided within the matrix segment; A cooling section is located on one side of the matrix section; The cooling section is a two-layer structure composed of a wrapping layer and a cooling layer. The wrapping layer forms a hollow column. The cooling layer is located on the inner surface of the sidewall of the wrapping layer, and the specific heat capacity of the cooling layer material is 2100 J / (kg*℃) to 4500 J / (kg*℃). The entire outer wall of the cooling layer is in contact with the inner surface of the sidewall of the wrapping layer. The thickness ratio of the wrapping layer to the cooling layer is in the range of 1:0.5 to 1:

30. The cooling layer is formed into a hollow column shape and covers the entire inner surface of the sidewall of the wrapping layer; the porosity of the cooling layer is 0.2~0.8; the material of the cooling layer includes one or more of aerogel porous materials, aerogel fiber wrapping materials, porous silica gel, starch, and natural rubber.

2. The aerosol-generating product according to claim 1, characterized in that, The porosity of the cooling layer is 0.25~0.

75.

3. The aerosol-generating product according to claim 1, characterized in that, The thickness ratio of the wrapping layer to the cooling layer is 1:0.6 to 1:

27.

4. The aerosol-generating product according to claim 3, characterized in that, The thickness of the wrapping layer is 0.01mm to 1mm.

5. The aerosol-generating product according to claim 1, characterized in that, The aerosol-generated product is a two-stage product. or The aerosol generating product is a three-section product, which further includes a filtration section; the cooling section is located between the matrix section and the filtration section.

6. The aerosol-generating product according to claim 1, characterized in that, It also includes a housing, within which the matrix section and the cooling section are housed.

7. The aerosol-generating product according to claim 6, characterized in that, The material of the wrapping layer includes one or more of the following: fiber paper, polyethylene (PE), polylactic acid (PLA), and polyethylene terephthalate (PET).

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