A curled aerosol generating section and an aerosol generating product containing the same

Abstract

The present invention discloses a curled aerosol generating section and an aerosol generating product containing the same. The curled aerosol generating section is formed by curling an aerosol generating sheet toward the axial center, and an axial airflow channel (4) is provided in the curled aerosol generating section; the aerosol generating sheet comprises an aerosol generating substrate layer (1). The aerosol generating sheet of the present invention can contain more smoke generating agents and metal powders than the existing reconstituted tobacco sheet. In addition, the aerosol generating sheet also comprises one or more functional layers, and the functional layers are metal material layers (2) or impermeable layers (3). The metal material layer (2) is directly bonded to the aerosol generating substrate to form the aerosol generating sheet, and then rolled to form the curled aerosol generating section. This can solve the problem of uneven heating of electromagnetic aerosol generating products with metal powder or metal rods added in the prior art, excessive heating in the center of the aerosol generating section, and insufficient heating at the periphery.

Description

Technical Field

[0001] The invention relates to the technical field of low-temperature heating-non-combustion product production, and in particular to a curled aerosol generating section and an aerosol generating product containing the same. Background Art

[0002] Low-temperature heat-not-burn products have been highly praised by many tobacco companies because they greatly reduce harmful substances in smoke and have less second-hand smoke. At present, heating devices can be divided into resistance wire heating, electromagnetic induction heating and magnetic particle equalization heating according to the heating method. Cigarette cartridges can be divided into granular cigarette cartridges and thin-sheet cigarette cartridges according to the material properties of the smoke-emitting section. The existing granular and thin-sheet cigarette cartridges on the market are mainly suitable for resistance wire heating cigarette devices, while there are fewer cigarette cartridges suitable for electromagnetic induction heating and magnetic particle equalization heating.

[0003] Currently, the commonly used aerosol generating components are mostly gathered reconstituted tobacco leaf sheets, which usually have a moisture content of 12% in order to meet the form of the reconstituted tobacco leaf sheet, which makes the amount of smoke that can be added usually around 40%, which is relatively small.

[0004] In addition, aerosol generating products suitable for electromagnetically heated cigarette smoking utensils are the main research direction at present, and there are usually two methods for adding sensor metal materials to existing aerosol generating products: the first is to add metal powder to the aerosol generating section to use it as a sensor to receive the eddy current generated by the electromagnetically heated cigarette smoking utensils sensor for heating. The problem with this scheme is that the prior art usually adds metal powder to the slurry in the reconstituted tobacco leaf pulping process, and the metal powder is easily deposited at the bottom of the slurry under the action of weight, so that the metal powder in the prepared reconstituted tobacco leaf is unevenly distributed, resulting in uneven heating. In addition, the content of metal powder allowed to be added to the reconstituted tobacco leaf in this method is also relatively small. The second is to directly add a metal rod (similar to a central heating type heating needle) to the center of the aerosol generating section. The problem is that since there is only one metal rod in the center of the aerosol generating section, the various parts of the aerosol generating section are heated unevenly during heating, the center of the aerosol generating section is overheated, and the periphery is not heated enough.

[0005] The present invention has been proposed in order to solve the above-mentioned problems. Summary of the invention

[0006] The present invention provides a curled aerosol generating section, which is formed by curling an aerosol generating sheet toward the axial center, and an axial airflow channel 4 is provided in the curled aerosol generating section;

[0007] The aerosol-generating sheet comprises an aerosol-generating substrate layer 1 .

[0008] Preferably, the airflow channel 4 runs through the curled aerosol generating section; one end of the aerosol generating sheet is curled toward the other end, and the two ends are connected or not connected after curling. The connected situation means that the sheet-shaped aerosol generating sheet forms a hollow tube; the not connected situation means that the sheet-shaped aerosol generating sheet forms a fruit leather shape.

[0009] Preferably, the rolled aerosol generating section comprises a plurality of contacting aerosol generating sheets extending axially and arranged radially outward from the central axis, and the innermost layer of aerosol generating sheets forms a central cavity as an airflow channel 4 axially penetrating the rolled aerosol generating section; if it is tubular, each layer of aerosol generating sheets is in contact with each other, which is a tube with multiple layers in contact; if it is in the shape of a fruit leather, each layer of aerosol generating sheets is in contact with each other, that is, when the fruit leather is rolled, it is tightly rolled so that each layer of aerosol generating sheets is in contact with each other;

[0010] or,

[0011] The curled aerosol generating section includes multiple layers of non-contacting aerosol generating sheets extending axially and arranged radially outward from the central axis, and the gap between two adjacent layers of aerosol generating sheets is an air flow channel 4 axially penetrating the curled aerosol generating section; if it is tubular, each layer of aerosol generating sheets does not contact, that is, a multi-layer non-contact tube; if it is in the shape of a fruit leather, each layer of aerosol generating sheets does not contact, that is, when the fruit leather is rolled, it is loosely rolled so that each layer of aerosol generating sheets does not contact;

[0012] It should be noted that the shape of the fruit leather in which each layer of aerosol generating sheet does not touch each other means that the multiple layers of aerosol generating sheets do not touch each other in the radial direction after rolling. However, when the aerosol generating sheet also includes other functional layers, such as the metal material layer 2 and the anti-seepage layer 3, the aerosol generating substrate layer 1, the metal material layer 2 and the anti-seepage layer 3 can be arranged in contact with each other in sequence to form an integral aerosol generating sheet, and then rolled inward from one end like the fruit leather, but each layer of the aerosol generating sheet does not touch each other after rolling.

[0013] Preferably, the aerosol generating substrate layer 1 contains smoke-generating material and metal powder.

[0014] Preferably, the particle size of the metal powder is 40 mesh or less.

[0015] Preferably, the aerosol generating substrate layer 1 further contains a smoke generating agent, wherein the moisture content of the aerosol generating substrate layer 1 does not exceed 5%, and the content of the smoke generating agent is 10% to 60%.

[0016] Preferably, the aerosol generating sheet further comprises one or more functional layers, and the functional layer is a metal material layer 2 or an impermeability-proof layer 3 .

[0017] Preferably, when the aerosol generating sheet comprises a functional layer, the functional layer is overlapped and laminated with the aerosol generating substrate layer 1 to form the aerosol generating sheet, which is then curled toward the axial center to prepare a curled aerosol generating section.

[0018] Preferably, when the aerosol generating sheet comprises a plurality of functional layers, the plurality of functional layers are sequentially arranged on one side of the aerosol generating substrate layer 1 , or the plurality of functional layers are respectively located on both sides of the aerosol generating substrate layer 1 .

[0019] Preferably, when the functional layer is an impermeable layer 3 , the impermeable layer 3 is located outside the aerosol generating substrate layer 1 , and the outer surface of the rolled aerosol generating section after rolling is the impermeable layer 3 .

[0020] Preferably, the aerosol-generating sheet has a thickness of 0.01-5 mm.

[0021] Preferably, the thickness of the metal material layer 2 is 0.01-5 mm; the thickness of the anti-seepage layer 3 is 0.01-4 mm.

[0022] Preferably, the metal material layer 2 is one or more of iron, nickel, aluminum, stainless steel, and an iron-nickel alloy layer, and the anti-seepage layer 3 is one of dimethyl silicone oil and a PLA film.

[0023] The second aspect of the present invention provides an aerosol generating product, which includes the curled aerosol generating section described in the first aspect of the present invention.

[0024] The curled aerosol generating section is directly loaded into the hollow tube body forming the aerosol generating product without the need to wrap it with cigarette paper.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. The curled aerosol generating section of the present invention is formed by curling the aerosol generating sheet toward the axial center. Since the moisture content of the aerosol generating sheet does not exceed 5%, it does not need to meet the standard of the existing reconstituted tobacco sheet, so it can contain more smoke generating agents or aroma components than the existing reconstituted tobacco sheet, and can meet the demand for higher smoke volume.

[0027] 2. In a preferred embodiment, the curled aerosol generating section includes multiple layers of non-contact aerosol generating sheets extending axially and arranged radially outward from the central axis, and the gap between two adjacent layers of aerosol generating sheets is an air flow channel 4 axially penetrating the curled aerosol generating section. The evenly distributed air flow channels 4 are more conducive to the uniform release and mixing of the aerosol.

[0028] 3. In a preferred embodiment, the aerosol generating sheet includes only one aerosol generating substrate layer 1, and the aerosol generating substrate layer 1 contains metal powder. Since the moisture content of the aerosol generating sheet does not exceed 5%, it can contain more metal powder than the existing reconstituted tobacco leaf sheet.

[0029] 4. In a preferred embodiment, the aerosol generating sheet includes one or more functional layers in addition to the aerosol generating substrate layer 1. The functional layer is a metal material layer 2 or an anti-seepage layer 3. The one or more functional layers are overlapped and bonded with the aerosol generating substrate layer 1 to form the aerosol generating sheet, which is then rolled to form a curled aerosol generating section.

[0030] With respect to the functional layer being the metal material layer 2, this curled aerosol generating section is suitable for electromagnetically heated cigarettes. Compared with the prior art of adding metal powder to the aerosol generating section, this method is simpler, and it can add more metal materials. More importantly, the metal materials are more evenly distributed, and a layer of metal materials is directly bonded to the aerosol generating substrate. Compared with the prior art of adding a metal rod similar to a central heating type heating needle to the center of the aerosol generating section, the main advantage of this method of the present invention is that the metal materials are more evenly distributed, and a layer of metal materials is directly bonded to the aerosol generating substrate. When heated, all aerosol generating substrates can be evenly heated, avoiding the problem of uneven heating caused by adding a metal rod to the center of the aerosol generating section, excessive heating in the center of the aerosol generating section, and insufficient heating at the periphery.

[0031] As the functional layer is the anti-seepage layer 3, the anti-seepage layer 3 and the aerosol generating substrate are directly laminated to prevent the smoke generating agent, flavor and fragrance in the aerosol generating substrate from penetrating into the outer paper tube. At the same time, the anti-seepage layer 3 and the aerosol generating substrate are directly laminated to form the aerosol generating sheet, which is curled toward the axial center to prepare a curled aerosol generating section. This can make the aerosol generating section itself have an anti-seepage function more simply, without the need to set an anti-seepage layer 3 on the paper tube or cigarette paper.

[0032] 5. The magnetic aerosol generating section prepared by the present invention is suitable for both resistance wire heating type smoking articles and electromagnetic induction heating and magnetic particle heating type smoking articles, and it has high compatibility with electromagnetic induction heating smoking articles and good magnetic thermal conductivity. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 Schematic diagram of the curled aerosol generating section structure of Example 1;

[0034] Figure 2 A cross-sectional schematic diagram of the curled aerosol generating section of Example 1;

[0035] Figure 3Schematic diagram of the curled aerosol generating section structure of Example 2;

[0036] Figure 4 A cross-sectional schematic diagram of the curled aerosol generating section of Example 2;

[0037] Figure 5 Schematic diagram of the curled aerosol generating section structure of Example 3;

[0038] Figure 6 A cross-sectional schematic diagram of the curled aerosol generating section of Example 3;

[0039] Figure 7 Schematic diagram of the curled aerosol generating section structure of Example 4;

[0040] Figure 8 A cross-sectional schematic diagram of the curled aerosol generating section of Example 4;

[0041] The names of the reference numerals in the drawings are: 1 - aerosol generating substrate layer, 2 - metal material layer, 3 - impermeability barrier layer, 4 - air flow channel. DETAILED DESCRIPTION

[0042] The present invention is further described in detail below in conjunction with embodiments.

[0043] Those skilled in the art will appreciate that the following examples are only used to illustrate the present invention and should not be considered to limit the scope of the present invention. If no specific techniques or conditions are specified in the examples, the techniques or conditions described in the literature in the art or the product specifications are used. If the manufacturer of the materials or equipment used is not specified, they are all conventional products that can be purchased.

[0044] Those skilled in the art will appreciate that, unless expressly stated otherwise, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of the present invention refers to the presence of the features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof. It should be understood that when we refer to an element as being "connected" to another element, it may be directly connected to the other element, or there may be intermediate elements. In addition, the "connection" used herein may include wireless connections.

[0045] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two. The terms "inside", "upper", "lower", etc., indicating positions or state relationships, are based on the positions or state relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operate in a specific position, and therefore cannot be understood as limiting the present invention.

[0046] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "provided with" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention will be understood according to specific circumstances.

[0047] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein, including technical and scientific terms, have the same meaning as those generally understood by those skilled in the art in the art to which the present invention belongs. It should also be understood that terms such as those defined in common dictionaries should be understood to have meanings consistent with the meanings in the context of the prior art, and will not be interpreted with idealized or overly formal meanings unless defined as herein.

[0048] Example 1

[0049] This embodiment provides a curled aerosol generating section, which is formed by curling an aerosol generating sheet toward the axial center, and an axial airflow channel 4 is provided in the curled aerosol generating section;

[0050] The aerosol generating sheet material comprises only one aerosol generating substrate layer 1, and the aerosol generating substrate layer 1 is curled toward the axial center to form a tubular curled aerosol generating section with one tube wall.

[0051] The air flow channel 4 runs through the curled aerosol generating section. One end of the aerosol generating sheet is curled toward the other end, and the two ends are connected after curling.

[0052] The aerosol generating substrate layer 1 contains smoke-generating material and metal powder, and the particle size of the metal powder is 40 mesh or less.

[0053] The aerosol generating substrate layer 1 also contains a smoke generating agent, wherein the moisture content of the aerosol generating substrate layer 1 does not exceed 5%, and the content of the smoke generating agent is 10%.

[0054] The thickness of the aerosol-generating substrate layer 1 is 0.1 mm.

[0055] Example 2

[0056] This embodiment is a curled aerosol generating section, which is formed by curling the aerosol generating sheet toward the axial center, and an axial airflow channel 4 is provided in the curled aerosol generating section;

[0057] The aerosol-generating sheet comprises an aerosol-generating substrate layer 1 .

[0058] The air flow channel 4 runs through the curled aerosol generating section. One end of the aerosol generating sheet is curled toward the other end, and the two ends are connected after curling.

[0059] The curled aerosol generating section comprises multiple layers of contacting aerosol generating sheets extending axially and arranged radially outward from a central axis, and the innermost layer of aerosol generating sheets forms a central cavity as an airflow channel 4 axially penetrating the curled aerosol generating section.

[0060] The aerosol generating substrate layer 1 contains smoke-generating material and metal powder, and the particle size of the metal powder is 40 mesh or less.

[0061] The aerosol generating substrate layer 1 also contains a smoke generating agent, wherein the moisture content of the aerosol generating substrate layer 1 does not exceed 5%, and the content of the smoke generating agent is 10%.

[0062] The thickness of the aerosol-generating substrate layer 1 is 0.1 mm.

[0063] The aerosol generating sheet further comprises a metal material layer 2; the thickness of the metal material layer 2 is 0.01 mm; the metal material layer 2 is an iron-nickel alloy layer.

[0064] The aerosol generating substrate layer 1 is located on the inner side, and the metal material layer 2 is located on the outer side of the aerosol generating substrate layer 1 . After rolling, the outer surface of the rolled aerosol generating section is the metal material layer 2 .

[0065] Example 3

[0066] This embodiment is a curled aerosol generating section, which is formed by curling the aerosol generating sheet toward the axial center, and an axial airflow channel 4 is provided in the curled aerosol generating section;

[0067] The aerosol-generating sheet comprises an aerosol-generating substrate layer 1 .

[0068] The air flow channel 4 runs through the curled aerosol generating section. One end of the aerosol generating sheet is curled toward the other end, and the two ends are connected after curling.

[0069] The curled aerosol generating section comprises multiple layers of contacting aerosol generating sheets extending axially and arranged radially outward from a central axis, and the innermost layer of aerosol generating sheets forms a central cavity as an airflow channel 4 axially penetrating the curled aerosol generating section.

[0070] The aerosol generating substrate layer 1 contains smoke-generating material and metal powder, and the particle size of the metal powder is 40 mesh or less.

[0071] The aerosol generating substrate layer 1 also contains a smoke generating agent, wherein the moisture content of the aerosol generating substrate layer 1 does not exceed 5%, and the content of the smoke generating agent is 10%.

[0072] The thickness of the aerosol-generating substrate layer 1 is 0.1 mm.

[0073] The aerosol generating sheet further comprises a metal material layer 2 and an impermeable layer 3; the thickness of the metal material layer 2 is 0.01 mm; the thickness of the impermeable layer 3 is 0.01 mm; the metal material layer 2 is an iron-nickel alloy layer, and the impermeable layer 3 is dimethyl silicone oil.

[0074] The aerosol generating substrate layer 1 is located at the innermost side, the anti-seepage layer 3 is located at the outer side of the aerosol generating substrate layer 1 , and the outer surface of the rolled aerosol generating section after rolling is the anti-seepage layer 3 .

[0075] Example 4

[0076] This embodiment provides a curled aerosol generating section, which is formed by curling an aerosol generating sheet toward the axial center, and an axial airflow channel 4 is provided in the curled aerosol generating section;

[0077] The aerosol-generating sheet comprises an aerosol-generating substrate layer 1 .

[0078] The air flow channel 4 runs through the curled aerosol generating section. One end of the aerosol generating sheet is curled toward the other end, and the two ends are not connected after curling.

[0079] The curled aerosol generating section includes multiple layers of non-contacting aerosol generating sheets extending axially and arranged radially outward from the central axis, and the gap between two adjacent layers of aerosol generating sheets is an airflow channel 4 axially penetrating the curled aerosol generating section; it is similar to the shape of fruit leather, and each layer is not in contact. In other words, each layer of aerosol generating sheet includes an aerosol generating substrate layer 1 and other functional layers, and the aerosol generating substrate layer 1 and other functional layers can be arranged in sequence in a contact manner, but similar to the fruit leather, curled inward from one end, but each layer of aerosol generating sheet after rolling is not in contact.

[0080] The aerosol generating substrate layer 1 contains smoke-generating material and metal powder, and the particle size of the metal powder is 40 mesh or less.

[0081] The aerosol generating substrate layer 1 also contains a smoke generating agent, wherein the moisture content of the aerosol generating substrate layer 1 does not exceed 5%, and the content of the smoke generating agent is 10%.

[0082] The thickness of the aerosol-generating substrate layer 1 is 0.1 mm.

[0083] In this embodiment, each layer of aerosol generating sheet material includes only one layer of aerosol generating substrate layer 1. When the aerosol generating sheet material also includes other functional layers such as metal material layer 2 and anti-seepage layer 3, the aerosol generating substrate layer 1, the metal material layer 2 and the anti-seepage layer 3 can be arranged in a contacting manner in sequence to form an integral aerosol generating sheet material, and then rolled inward from one end like a fruit leather, but each layer of the aerosol generating sheet material after rolling does not contact each other.

Claims

1. A curled aerosol generating section, characterized in that: The aerosol generating sheet is curled toward the axial center, and an axial air flow channel (4) is provided in the curled aerosol generating section; The aerosol-generating sheet comprises an aerosol-generating substrate layer (1); The moisture content of the aerosol generating substrate layer (1) does not exceed 5%; The curled aerosol generating section comprises a plurality of non-contacting aerosol generating sheets extending axially and arranged radially outward from a central axis, and a gap between two adjacent layers of aerosol generating sheets is an air flow channel (4) axially penetrating the curled aerosol generating section; The aerosol generating sheet further comprises one or more functional layers, wherein the functional layers are a metal material layer (2) and an impermeability-proof layer (3).

2. The curled aerosol generating section according to claim 1, characterized in that: The air flow channel (4) runs through the curled aerosol generating section; one end of the aerosol generating sheet is curled toward the other end, and the two ends are connected or not connected after curling.

3. The curled aerosol generating section according to claim 1, characterized in that: The aerosol generating substrate layer (1) contains smoke-generating material and metal powder, and the particle size of the metal powder is 40 mesh or less.

4. The curled aerosol generating section according to claim 1, characterized in that: The aerosol generating substrate layer (1) also contains a smoke generating agent, and the content of the smoke generating agent is 10% to 60%.

5. The curled aerosol generating section according to claim 1, characterized in that: The thickness of the aerosol generating substrate layer (1) is 0.01-5 mm.

6. The curled aerosol generating section according to claim 1, characterized in that: The thickness of the metal material layer (2) is 0.01-5 mm; the thickness of the anti-seepage layer (3) is 0.01-4 mm; the metal material layer (2) is one or more of iron, nickel, aluminum, stainless steel, and iron-nickel alloy layer; the anti-seepage layer (3) is one of dimethyl silicone oil and PLA film.

7. The curled aerosol generating section according to claim 1, characterized in that: When the aerosol generating sheet comprises a functional layer, the functional layer is overlapped and laminated with the aerosol generating substrate layer (1) to form the aerosol generating sheet, and the aerosol generating sheet is curled toward the axial center to prepare a curled aerosol generating section; Alternatively, when the aerosol generating sheet comprises multiple functional layers, the multiple functional layers are sequentially arranged on one side of the aerosol generating substrate layer (1), or the multiple functional layers are respectively located on both sides of the aerosol generating substrate layer (1).

8. The curled aerosol generating section according to claim 1, characterized in that: The anti-seepage layer (3) is located outside the aerosol generating substrate layer (1), and after rolling, the outer surface of the rolled aerosol generating section is the anti-seepage layer (3).

9. An aerosol generating product, characterized in that: It comprises the curled aerosol generating section as described in any one of claims 1-8.

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