Aerosol-generating article, preparation method for aerosol-generating article, and aerosol-generating system

Abstract

The present application provides an aerosol-generating article, a preparation method for an aerosol-generating article, and an aerosol-generating system. The aerosol-generating article comprises: a paper substrate; and a vapor-forming medium layer coated on a surface of the paper substrate, the vapor-forming medium layer and the paper substrate being wound to form a hollow accommodating cavity, and the paper substrate surrounding an outer periphery of the vapor-forming medium layer. The aerosol-generating article of the present application has a hollow accommodating cavity configured to receive additionally embedded vapor-forming agents, flavorants, etc., such that the vapor yield and aroma of the aerosol-generating article are enhanced.

Description

Aerosol-generating products, preparation methods of aerosol-generating products, and aerosol generation systems

[0001]

[0002] Cross-reference of related applications

[0003] This application claims priority to Chinese Patent Application No. 202411823609.9, filed on December 10, 2024, entitled "Aerosol Generating Article, Method for Preparing Aerosol Generating Article and Aerosol Generating System", the entire contents of which are incorporated herein by reference.

[0004] Technical Field

[0005] This application relates to the field of aerosol generation technology, and particularly to aerosol generation products, methods for preparing aerosol generation products, and aerosol generation systems. Background Technology

[0006] Existing aerosol-generating products are placed in the heating components of a heated but non-combustible aerosol-generating device, and heated using central heating, circumferential heating, or air heating to generate aerosols for users to inhale. Aerosol-generating products mainly include (1) tobacco core rods made from thin sheets prepared by slurry method, roll pressing method, papermaking method, or dry process and processed into ordered or disordered core rods; (2) columnar core rods prepared by grouting process; and (3) block core rods prepared by extrusion process. However, the ordered or disordered core structures prepared by slurry method, roll pressing method, etc., as well as the columnar and block core rods prepared by grouting and extrusion processes, fill the gaps of the entire tobacco tube, making it impossible to put in additional embedded smoke-generating agents, flavorings, etc., resulting in insufficient smoke generation and aroma of aerosol-generating products. Summary of the Invention

[0007] To address the issues of insufficient smoke and aroma in aerosol-generated products.

[0008] This application provides an aerosol generating article, comprising:

[0009] Paper base;

[0010] A smoke-generating medium layer is coated on the surface of a paper base. The smoke-generating medium layer and the paper base are wound together to form a hollow cavity, with the paper base surrounding the outer periphery of the smoke-generating medium layer.

[0011] This application provides an aerosol generating article with an outer diameter of 5mm-8mm.

[0012] This application provides an aerosol generating article with a cavity diameter of 0.2mm-7.8mm.

[0013] This application provides an aerosol generating article, wherein the ratio of the outer diameter of the aerosol generating article to the diameter of the receiving cavity is 1.03-40.

[0014] This application provides an aerosol generating article, wherein a carrier is provided in the containment cavity, and the carrier contains a smoke-generating matrix or fragrance.

[0015] This application provides an aerosol generating product, wherein the carrier is non-woven fabric, cotton fabric, cotton-linen fabric, Tencel, or special paper.

[0016] This application provides an aerosol generating article, wherein the thickness of the carrier is 0.1mm-0.3mm.

[0017] This application provides an aerosol generating article, wherein the basis weight of the carrier is 20 g / m³. 2 -60g / m 2 .

[0018] This application provides an aerosol generating article, wherein the carrier is a hollow tubular structure and the carrier is disposed within a receiving cavity.

[0019] This application provides an aerosol-generating article, wherein the paper base is cigarette paper, cellulose paper, high-permeability forming paper, or ordinary forming paper.

[0020] This application provides an aerosol-generating article with a paper base having an air permeability of 50CU-20000CU.

[0021] This application provides an aerosol-generating article with a paper base thickness of 0.03mm-0.5mm.

[0022] This application provides an aerosol-generating article with a paper base weight of 20 g / m³. 2 -90 g / m 2 .

[0023] This application provides an aerosol generating article, wherein the thickness of the smoke-generating medium layer is 0.5mm-5mm.

[0024] This application provides a method for preparing an aerosol-generating product, comprising:

[0025] Wet the working surface of the flat plate dryer and lay the paper base flat on the working surface;

[0026] A fuming medium layer is coated onto a paper base and then plate-dried.

[0027] The paper base coated with a smoke-generating medium layer is microwave-dried.

[0028] Aerosol-generated products are formed by winding to create a hollow containment cavity.

[0029] This application provides a method for preparing an aerosol-generated product, wherein the plate drying temperature is 50℃-120℃ and the plate drying time is 5 min-70 min.

[0030] This application provides a method for preparing an aerosol-generating article, wherein in the step of microwave drying a paper base coated with a smoke-generating medium layer,

[0031] Microwave drying includes a first microwave drying and a second microwave drying. The temperature of the first microwave drying is the first temperature; the temperature of the second microwave drying is the second temperature; the first temperature is lower than the second temperature.

[0032] This application provides a method for preparing an aerosol-generated article, wherein the first temperature is 25℃-55℃; or the second temperature is 60℃-90℃.

[0033] This application provides a method for preparing an aerosol-generated product, wherein the vacuum degree of the first microwave drying is 25 (-kPa)-55 (-kPa); and the vacuum degree of the second microwave drying is 60 (-kPa)-90 (-kPa).

[0034] This application provides a method for preparing an aerosol-generated product, wherein the first microwave drying time is 5 min-60 min; and the second microwave drying time is 0.5 min-10 min.

[0035] This application provides a method for preparing an aerosol-generating article, which, after the step of winding to form an aerosol-generating article with a hollow accommodating cavity, further includes: placing a carrier containing a smoke-generating matrix or fragrance in the accommodating cavity;

[0036] Alternatively, after the step of coating the paper base with a smoke-generating medium layer, the method may further include: placing a carrier containing a smoke-generating matrix or fragrance within the receiving cavity.

[0037] This application provides a method for preparing an aerosol-generated product, wherein a carrier is rolled into a single layer or multiple layers.

[0038] This application provides a method for preparing an aerosol-generated product, wherein the carrier has a spiral structure and is spirally wound along the axial direction of the receiving cavity to form a cylindrical structure.

[0039] This application provides a method for preparing an aerosol-generating article, wherein in the step of coating a smoke-generating medium layer on a paper substrate, the smoke-generating medium layer is formed by multiple coating processes.

[0040] This application provides an aerosol generation system, including a heating device and the aforementioned aerosol generation article. The heating device is used to heat the aerosol generation article to generate aerosol.

[0041] The aerosol generating product of this application has a hollow cavity into which additional encapsulated smoke-generating agents, fragrances, etc., can be placed, making the smoke generation and aroma of the aerosol generating product more abundant. Attached Figure Description

[0042] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0043] Figure 1 is a schematic diagram of an aerosol-generated article according to an embodiment of this application;

[0044] Figure 2 is a schematic diagram of an aerosol-generated article according to an embodiment of this application;

[0045] Figure 3 is a schematic diagram of an aerosol-generated article according to an embodiment of this application;

[0046] Figure 4 is a schematic diagram of an aerosol-generated article according to an embodiment of this application;

[0047] Figure 5 is a flowchart of a method for preparing an aerosol-generated article according to an embodiment of this application.

[0048] In the picture:

[0049] 10. Aerosol generating device;

[0050] 1. Paper base;

[0051] 2. Smoke-generating medium layer; 21. Receiving cavity;

[0052] 3. Carrier. Embodiments of the present invention

[0053] 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.

[0054] The terms "first," "second," and "third" used in this application are for descriptive purposes only and should not be construed as indicating or implying the quantity or order of the indicated technical features relative to their importance. 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 relationship or movement of the components in a specific orientation (as shown in the accompanying drawings). If the specific orientation changes, the directional indication will 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.

[0055] 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.

[0056] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be intervening elements. When an element is referred to as being "connected to" another element, it can be directly connected to the other element, or there may be one or more intervening elements. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0057] One embodiment of this application provides an aerosol generating article 10, including a paper base 1 and a smoke-generating medium layer 2. The smoke-generating medium layer 2 is coated on the surface of the paper base 1, and the smoke-generating medium layer 2 and the paper base 1 are wound together to form a hollow receiving cavity 21, with the paper base 1 surrounding the outer periphery of the smoke-generating medium layer 2.

[0058] The aerosol generating article 10 of this application has a hollow receiving cavity 21, which can hold additionally embedded smoke-generating agents, fragrances, etc., so that the smoke generation and aroma of the aerosol generating article 10 are more abundant.

[0059] In one embodiment of this application, the smoke-generating medium layer 2 may include tobacco extract. The tobacco extract can be obtained by extracting extracts from tobacco leaves and flowers using a solvent, then extracting the extracts with ethanol, followed by drying, dehydration, desalting, and cooking of the raw materials, adding an extract with a special aroma, and performing ultrasonic-assisted extraction to finally obtain a tobacco extract with a specific flavor. In one embodiment of this application, the tobacco extract is mainly used for tobacco flavoring, which can enhance the aroma, reduce off-flavors, and improve cigarette quality. Its aroma is realistic and natural, making it an excellent raw material for cigarette flavoring. Furthermore, tobacco extract can also be used in daily-use fragrances to provide unique aromas and flavors.

[0060] In one embodiment of this application, the main components of the tobacco extract include furfuryl alcohol, benzyl alcohol, phytol, solanone, β-turatone, β-ionone, hexahydrofarnesone, diene nicotinene, daidzeinone, dihydroactinolone, isopentenone, indole, etc.

[0061] In one embodiment of this application, the outer diameter of the aerosol generating article 10 is 5mm-8mm. In one embodiment of this application, the outer diameter of the aerosol generating article 10 is 6mm-7mm. In one embodiment of this application, the outer diameter of the aerosol generating article 10 is 5mm, 5.5mm, 6mm, 6.5mm, 7mm, 7.5mm, or 8mm.

[0062] In one embodiment of this application, the diameter of the receiving cavity 21 is 0.2mm-7.8mm. In one embodiment of this application, the diameter of the receiving cavity 21 is 3mm-5mm. In one embodiment of this application, the diameter of the receiving cavity 21 is 0.2mm, 0.5mm, 1mm, 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 7.5mm, or 7.8mm.

[0063] In one embodiment of this application, the ratio of the outer diameter of the aerosol generating article 10 to the diameter of the receiving cavity 21 is 1.03-40. In one embodiment of this application, the ratio of the outer diameter of the aerosol generating article 10 to the diameter of the receiving cavity 21 is 5-20. In one embodiment of this application, the ratio of the outer diameter of the aerosol generating article 10 to the diameter of the receiving cavity 21 is 1.03, 1.5, 2, 5, 10, 15, 20, 25, 30, 35, or 40.

[0064] In one embodiment of this application, the receiving cavity 21 is provided with a carrier 3, which contains a smoke-generating matrix or fragrance. The carrier 3 containing a smoke-generating matrix or fragrance can increase the amount of smoke and aroma of the aerosol-generating product 10.

[0065] In one embodiment of this application, the carrier 3 is non-woven fabric, cotton fabric, cotton-linen fabric, Tencel, or specialty paper.

[0066] In one embodiment of this application, nonwoven fabric is a type of nonwoven material. It is formed by directly using polymer chips, short fibers, or filaments to form a web through airflow or mechanical means, followed by hydroentangling, needle punching, or thermal rolling for reinforcement, and finally finishing to create a non-woven fabric. It is a novel fiber product with softness, breathability, and a planar structure. Its advantages include no fiber shedding, strength, durability, silky softness, and it is also a type of reinforcing material. Furthermore, it has a cotton-like feel. Compared to cotton fabrics, nonwoven bags are easier to shape and cheaper to manufacture. In one embodiment of this application, nonwoven fabric includes polyester, polypropylene, nylon, spandex, acrylic, etc.

[0067] In one embodiment of this application, the basis weight of the specialty paper is 25 g / m². 2 Specialty paper is paper made from different fibers using a paper machine to produce paper with special functions. For example, it can be made from raw materials such as synthetic fibers, synthetic pulp or mixed wood pulp alone, and modified or processed with different materials to give the paper different functions and uses, such as: household use, optical use, biotechnology and so on. Any paper material used for special purposes can be collectively referred to as specialty paper.

[0068] In one embodiment of this application, Tencel is a wood pulp fiber, also known as Lyocell fiber, which is extracted from natural wood pulp and made through physical and chemical treatment. Tencel retains the breathability of a fabric and the strength of a synthetic fiber, while possessing the luster and feel of silk.

[0069] In one embodiment of this application, the thickness of the carrier 3 is 0.1mm-0.3mm. In another embodiment of this application, the thickness of the carrier 3 is 0.1mm, 0.15mm, 0.2mm, 0.25mm, or 0.3mm.

[0070] In one embodiment of this application, the basis weight of the carrier 3 is 20 g / m³. 2 -60g / m 2 In one embodiment of this application, the basis weight of the carrier 3 is 25 g / m³. 2 -50g / m 2 In one embodiment of this application, the basis weight of the carrier 3 is 20 g / m³. 2 25 g / m 2 30g / m 2 35 g / m 2 40 g / m 2 45g / m 2 50 g / m 2 55g / m 2 Or 60g / m 2 .

[0071] In one embodiment of this application, the capillary rise of the carrier 3 is 40mm-150mm. In one embodiment of this application, the capillary rise of the carrier 3 is 80mm-120mm. In one embodiment of this application, the capillary rise of the carrier 3 is 40mm, 50mm, 60mm, 70mm, 80mm, 90mm, 100mm, 120mm, or 150mm. In one embodiment of this application, the capillary rise of Tencel is 90mm.

[0072] Capillary climb occurs because there are tiny channels inside a material. When water is guided into these channels, it rises spontaneously along them due to surface tension. The greater the height of the capillary climb, the stronger the material's adsorption capacity.

[0073] In one embodiment of this application, the carrier 3 is a hollow tubular structure, and the carrier 3 passes through the receiving cavity 21.

[0074] In one embodiment of this application, the paper base 1 is cigarette paper, cellulose paper, high-permeability forming paper, or ordinary forming paper. In one embodiment of this application, when the paper base 1 is ordinary forming paper, the basis weight of the ordinary forming paper is 30 g / m³. 2 .

[0075] In one embodiment of this application, the air permeability of paper base 1 is 50 CU-20000 CU. In one embodiment of this application, the air permeability of paper base 1 is 1000 CU-10000 CU. In one embodiment of this application, the air permeability of paper base 1 is 50 CU, 100 CU, 1000 CU, 2000 CU, 5000 CU, 10000 CU, 12000 CU, 15000 CU, 18000 CU, or 20000 CU.

[0076] In one embodiment of this application, the thickness of the paper base 1 is 0.03mm-0.5mm. In another embodiment of this application, the thickness of the paper base 1 is 0.03mm, 0.05mm, 0.1mm, 0.15mm, 0.2mm, 0.3mm, 0.4mm, or 0.5mm.

[0077] In one embodiment of this application, the basis weight of paper base 1 is 20 g / m². 2 -90 g / m 2 In one embodiment of this application, the basis weight of paper base 1 is 30 g / m³. 2 -50 g / m 2 In one embodiment of this application, the basis weight of paper base 1 is 20 g / m². 2 25 g / m 2 30g / m 2 35 g / m 240 g / m 2 45g / m 2 50 g / m 2 55g / m 2 60 g / m 2 65 g / m 2 70g / m 2 75 g / m 2 80g / m 2 Or 90 g / m 2 .

[0078] In one embodiment of this application, the thickness of the smoke-generating medium layer 2 is 0.5mm-5mm. In one embodiment of this application, the thickness of the smoke-generating medium layer 2 is 1mm-4mm. In one embodiment of this application, the thickness of the smoke-generating medium layer 2 is 0.5mm, 1mm, 2mm, 3mm, 4mm, or 5mm.

[0079] Aerosol-generating articles according to embodiments of this application can be prepared by the following method. One embodiment of this application provides a method for preparing an aerosol-generating article, comprising:

[0080] Wet the working surface of the flat plate dryer and lay the paper base flat on the working surface;

[0081] A fuming medium layer is coated onto a paper base and then plate-dried.

[0082] The paper base coated with a smoke-generating medium layer is microwave-dried.

[0083] Aerosol-generated products are formed by winding to create a hollow containment cavity.

[0084] In plate drying, effective components such as fragrances are retained, the drying rate is moderate, the rate of moisture removal is appropriate, and the working surface of the plate dryer changes from a wet state to a dry state, reducing the fluidity of the slurry and resulting in a better setting effect. In one embodiment of this application, the volume of the paper base and the fuming medium layer shrinks during the plate drying process.

[0085] During microwave drying, the water evaporates at a slower rate, making it less prone to scorching. Furthermore, the paper base and the smoke-generating medium layer expand, becoming more fluffy, which improves heat transfer efficiency, resulting in better smoke generation and a better smoking experience for users.

[0086] This application provides a method for preparing an aerosol-generated article, wherein the plate drying temperature is 50℃-120℃ and the plate drying time is 5 min-70 min. In one embodiment of this application, the plate drying temperature is 60℃-80℃. In one embodiment of this application, the plate drying temperature can be 50℃, 60℃, 70℃, 80℃, 90℃, 100℃, 110℃, or 120℃. In one embodiment of this application, the plate drying time is 5 min-70 min. In one embodiment of this application, the plate drying time is 15 min-45 min. In one embodiment of this application, the plate drying time is 5 min, 10 min, 15 min, 20 min, 30 min, 40 min, 45 min, 50 min, 60 min, or 70 min.

[0087] This application provides a method for preparing an aerosol-generating article, wherein in the step of microwave drying a paper base coated with a smoke-generating medium layer,

[0088] Microwave drying includes a first microwave drying and a second microwave drying. The temperature of the first microwave drying is a first temperature; the temperature of the second microwave drying is a second temperature; the first temperature is lower than the second temperature. In one embodiment of this application, the first microwave drying is low-temperature microwave drying, and the second microwave drying is high-temperature microwave drying. It should be noted that "high temperature" and "low temperature" here refer to the relative levels of drying temperature. Low-temperature microwave drying can be performed at the first temperature, and high-temperature microwave drying can be performed at the second temperature, where the first temperature is lower than the second temperature.

[0089] This application provides a method for preparing an aerosol-generated article, wherein the first temperature is 25℃-55℃; or the second temperature is 60℃-90℃.

[0090] In one embodiment of this application, the first microwave drying temperature can be 25℃-55℃. At this temperature, the dehydration rate is moderate, and the paper base and fuming medium layer will not scorch due to excessively rapid dehydration. During this process, the paper base and fuming medium layer expand, and as moisture escapes, a porous structure is formed on the sheet. After the first microwave drying, the second sheet is basically shaped. In one embodiment of this application, the first microwave drying temperature is 30℃-45℃. In one embodiment of this application, the first microwave drying temperature is 25℃, 30℃, 35℃, 40℃, 45℃, 50℃, or 55℃.

[0091] In one embodiment of this application, the second microwave drying temperature is 60°C-90°C. At this temperature, the dehydration rate is accelerated, and the paper base and the fuming medium layer further expand. In one embodiment of this application, the second microwave drying temperature is 75°C-85°C. In one embodiment of this application, the second microwave drying temperature is 60°C, 65°C, 70°C, 75°C, 80°C, 85°C, or 90°C.

[0092] This application provides a method for preparing an aerosol-generated product, wherein the vacuum degree of the first microwave drying is 25 (-kPa)-55 (-kPa); and the vacuum degree of the second microwave drying is 60 (-kPa)-90 (-kPa). In one embodiment of this application, the vacuum degree of the first microwave drying is lower than that of the second microwave drying, so that the dehydration rate in the first microwave drying is lower than that in the second microwave drying, which facilitates the shaping of the paper base and the smoke-generating medium layer in the first microwave drying.

[0093] In one embodiment of this application, the first microwave drying time is 5-60 minutes; the second microwave drying time is 0.5-10 minutes. In another embodiment of this application, the first microwave drying time is 5 minutes, 10 minutes, 15 minutes, 20 minutes, 25 minutes, 30 minutes, 35 minutes, 40 minutes, 45 minutes, 50 minutes, or 60 minutes. In another embodiment of this application, the second microwave drying time is 0.5-10 minutes. In yet another embodiment of this application, the second microwave drying time is 0.5 minutes, 1 minute, 2 minutes, 3 minutes, 5 minutes, 6 minutes, 8 minutes, 9 minutes, or 10 minutes.

[0094] In one embodiment of this application, the interval between the first and second microwave drying is 1-5 minutes. In another embodiment, the interval is 1-2 minutes. In yet another embodiment, the interval is 1 minute, 2 minutes, 3 minutes, 4 minutes, or 5 minutes. In one embodiment, when the first and second microwave drying are not performed in the same microwave oven, after the first microwave drying, the vacuum level needs to be reduced to zero before the second sheet is removed from the microwave oven and placed in another microwave oven for a second microwave heating. In one embodiment, when the first and second microwave drying are performed in the same microwave oven, after the first microwave drying, the temperature or pressure parameters in the microwave oven need to be readjusted before the second microwave heating.

[0095] In one embodiment of this application, after the step of winding to form an aerosol generating article with a hollow receiving cavity, the method further includes: disposing a carrier containing a smoke-generating matrix or fragrance inside the receiving cavity, that is, inserting a carrier containing a smoke-generating matrix or fragrance into the receiving cavity.

[0096] In one embodiment of this application, after the step of coating the paper base with a smoke-generating medium layer, the method further includes: placing a carrier containing a smoke-generating matrix or fragrance in the receiving cavity, that is, placing a carrier containing a smoke-generating matrix or fragrance on the smoke-generating medium layer before winding, which makes the operation simpler.

[0097] In one embodiment of this application, the carrier is rolled into a single layer or multiple layers. During the production of the aerosol-generating article, the number of carrier layers can be determined based on the desired smoke and aroma levels.

[0098] In one embodiment of this application, the carrier has a spiral structure, and the carrier is spirally wound along the axial direction of the receiving cavity to form a cylindrical structure.

[0099] In one embodiment of this application, in the step of coating a smoke-generating medium layer on a paper substrate, the smoke-generating medium layer is formed by multiple coating processes.

[0100] This application provides an aerosol generation system, including a heating device and the aforementioned aerosol generation article. The heating device is used to heat the aerosol generation article to generate aerosol.

[0101] In one embodiment of this application, the heating device can perform central heating, circumferential heating, or air heating on the aerosol-generating article. In another embodiment of this application, the heating device can use resistance heating, electromagnetic heating, or microwave heating to heat the aerosol-generating article.

[0102] It should be noted that the preferred embodiments of this application are given in the specification and accompanying drawings, but are not limited to the embodiments described in this specification. Furthermore, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. An aerosol-generating product, characterized in that, include: Paper base; A smoke-generating medium layer is coated on the surface of the paper base, and the smoke-generating medium layer and the paper base are wound together to form a hollow receiving cavity, with the paper base surrounding the outer periphery of the smoke-generating medium layer.

2. The aerosol-generating product according to claim 1, characterized in that, The outer diameter of the aerosol-generated product is 5mm-8mm.

3. The aerosol-generating product according to claim 1, characterized in that, The diameter of the receiving cavity is 0.2mm-7.8mm.

4. The aerosol-generating product according to claim 1, characterized in that, The ratio of the outer diameter of the aerosol-generated product to the diameter of the receiving cavity is 1.03-40.

5. The aerosol-generating product according to claim 1, characterized in that, The cavity is provided with a carrier, which contains a smoke-generating matrix or fragrance.

6. The aerosol-generating product according to claim 5, characterized in that, The carrier is non-woven fabric, cotton cloth, cotton-linen cloth, Tencel, or specialty paper.

7. The aerosol-generating product according to claim 5, characterized in that, The thickness of the carrier is 0.1mm-0.3mm.

8. The aerosol-generating product according to claim 5, characterized in that, The carrier has a basis weight of 20 g / m³. 2 -60g / m 2 .

9. The aerosol-generating product according to claim 5, characterized in that, The carrier is a hollow tubular structure and is inserted into the receiving cavity.

10. The aerosol-generating product according to claim 1, characterized in that, The paper base is cigarette paper, cellulose paper, high-permeability forming paper, or ordinary forming paper.

11. The aerosol-generating product according to claim 1, characterized in that, The air permeability of the paper base is 50CU-20000CU.

12. The aerosol-generating product according to claim 1, characterized in that, The thickness of the paper base is 0.03mm-0.5mm.

13. The aerosol-generating product according to claim 1, characterized in that, The basis weight of the paper base is 20 g / m³. 2 -90 g / m 2 .

14. The aerosol-generating product according to claim 1, characterized in that, The thickness of the smoke-generating medium layer is 0.5mm-5mm.

15. A method for preparing an aerosol-generated product, characterized in that, include: Wet the working surface of the flat plate dryer and lay the paper base flat on the working surface; A smoke-generating medium layer is coated onto the paper base and then plate-dried. The paper base coated with the smoke-generating medium layer is microwave-dried; Aerosol-generated products are formed by winding to create a hollow containment cavity.

16. The method for preparing the aerosol-generated product according to claim 15, characterized in that, The temperature for plate drying is 50℃-120℃, and the drying time is 5 min-70 min.

17. The method for preparing the aerosol-generated product according to claim 15, characterized in that, In the step of microwave drying the paper base coated with the smoke-generating medium layer... The microwave drying includes a first microwave drying and a second microwave drying, wherein the temperature of the first microwave drying is a first temperature; the temperature of the second microwave drying is a second temperature; and the first temperature is lower than the second temperature.

18. The method for preparing an aerosol-generated product according to claim 17, characterized in that, The first temperature is 25℃-55℃; or the second temperature is 60℃-90℃.

19. The method for preparing the aerosol-generated product according to claim 17, characterized in that, The vacuum degree of the first microwave drying is 25 (-kPa) - 55 (-kPa); the vacuum degree of the second microwave drying is 60 (-kPa) - 90 (-kPa).

20. The method for preparing an aerosol-generated product according to claim 17, characterized in that, The first microwave drying time is 5 min to 60 min; the second microwave drying time is 0.5 min to 10 min.

21. The method for preparing an aerosol-generating product according to claim 15, characterized in that, After the step of winding to form an aerosol generating article with a hollow receiving cavity, the method further includes: placing a carrier containing a smoke-generating matrix or fragrance inside the receiving cavity; Alternatively, after the step of coating the paper base with a smoke-generating medium layer, the method further includes: placing a carrier containing a smoke-generating matrix or fragrance within the receiving cavity.

22. The method for preparing the aerosol-generated product according to claim 21, characterized in that, The carrier is rolled into a single layer or multiple layers.

23. The method for preparing an aerosol-generated product according to claim 21, characterized in that, The carrier has a spiral structure, and the carrier is spirally wound along the axial direction of the receiving cavity to form a cylindrical structure.

24. The method for preparing the aerosol-generated product according to claim 15, characterized in that, In the step of coating the paper substrate with a smoke-generating medium layer, the smoke-generating medium layer is formed through multiple coating processes.

25. An aerosol generation system, characterized in that, The invention includes a heating device and an aerosol generating article as described in any one of claims 1-14, wherein the heating device is used to heat the aerosol generating article to generate an aerosol.

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