Tobacco segments, aerosol-generating articles and aerosol-generating systems

Abstract

The application provides a tobacco segment, an aerosol generating article and an aerosol generating system. The tobacco segment comprises: a support, which is tubular; a tobacco sheet layer, which is wound into a hollow cylinder, and which is sleeved on the support, and which can be heated to generate an aerosol, and the aerosol is suitable for passing through the support; and a band, which binds the tobacco sheet layer on the support. The tobacco segment provided by the application fixes the tobacco sheet layer on the support through the band, so that the production process of the tobacco segment is simple, the structure of the tobacco segment is stable, and the tobacco segment is beneficial to uniform heating during heating.

Description

Technical Field

[0001] This application relates to the field of aerosol generation technology, and particularly to tobacco segments, aerosol generation products, and aerosol generation systems. Background Technology

[0002] Tobacco products (e.g., cigarettes, cigars, etc.) produce tobacco smoke by burning tobacco during use. Efforts are being made to replace these tobacco-burning products by creating products that release compounds without combustion. An example of such a product is a heating device that releases compounds by heating rather than burning the material. This material could be tobacco or other non-tobacco products, which may or may not contain nicotine. Existing tobacco products suffer from poor structural stability of the tobacco segments within the structure, complex manufacturing processes, and are prone to uneven heating. Utility Model Content

[0003] To address the issues of poor structural stability and complex production processes in the tobacco segment of electromagnetic circumferential heating structures.

[0004] This application provides a tobacco segment, comprising:

[0005] The support member is tubular;

[0006] A sheet of tobacco, the sheet of tobacco being wound into a hollow cylindrical shape, the sheet of tobacco being sleeved on the support, the sheet of tobacco being heatable to generate an aerosol, the aerosol being adapted to pass through the support;

[0007] A strap binds the tobacco sheet layer to the support.

[0008] This application provides a tobacco segment, wherein the strap includes metal wire, cotton thread, hemp thread, resin strip, or fiber thread.

[0009] This application provides a tobacco segment, wherein the tobacco sheet layer includes opposing first and second edges, and is wound from the first edge to the second edge to form a hollow cylindrical shape, and a gap exists between the first edge and the second edge.

[0010] This application provides a tobacco section, wherein the tobacco sheet layer includes a metal substrate and an aerosol generating matrix layer, the metal substrate being flexible, and the aerosol generating matrix layer and the metal substrate being stacked to form the tobacco sheet layer.

[0011] This application provides a tobacco segment in which an aerosol generating matrix layer includes a first matrix layer and a second matrix layer, the first matrix layer and the second matrix layer being disposed on both sides of the metal substrate.

[0012] This application provides a tobacco segment, wherein the first matrix layer and / or the second matrix layer are coated on the metal substrate.

[0013] This application provides a tobacco segment, wherein the metal substrate is provided with through holes penetrating both sides of the metal substrate.

[0014] This application provides a tobacco segment, wherein the support member is provided with venting holes penetrating both sides of the support member.

[0015] This application provides a tobacco segment, wherein the belt is located at the middle of the tobacco sheet in the axial direction.

[0016] This application provides an aerosol-generating article comprising the aforementioned tobacco segment.

[0017] This application provides an aerosol generation system, including an aerosol generation device and the aforementioned aerosol generation article, wherein the aerosol generation device heats composite tobacco sheets to generate aerosols.

[0018] The tobacco segment provided in this application uses a strap to fix the tobacco sheet layer to the support, which simplifies the production process of the tobacco segment, makes the tobacco segment structure stable, and facilitates uniform heating of the tobacco segment during the heating process. Attached Figure Description

[0019] 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.

[0020] Figure 1 This is a schematic diagram of a tobacco segment according to an embodiment of this application;

[0021] Figure 2 This is a schematic diagram of a tobacco segment according to an embodiment of this application;

[0022] Figure 3 This is a schematic diagram of a metal substrate according to an embodiment of this application;

[0023] Figure 4 This is a schematic diagram of an aerosol-generated article according to an embodiment of this application;

[0024] Figure 5 This is a schematic diagram of an aerosol generation system according to an embodiment of this application.

[0025] In the picture:

[0026] 10. Tobacco segment;

[0027] 1. Smoke sheet layer;

[0028] 11. Metal substrate; 111. Through hole; 12. Aerosol generation matrix layer; 121. First matrix layer; 122. Second matrix layer; 13. First edge; 14. Second edge; 15. Gap;

[0029] 2. Support pipe;

[0030] 7. Cable ties;

[0031] 20. Nozzle section; 201. Suction nozzle; 202. Connecting part; 30. Sealing section; 40. Fixing component;

[0032] 100. Aerosol generating products; 200. Aerosol generating apparatus;

[0033] 1000. Aerosol generation system. Detailed Implementation

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] One embodiment of this application provides a tobacco segment 10, including a support member 2, a tobacco sheet layer 1, and a strap 7. The support member 2 is tubular. The tobacco sheet layer 1 is wound into a hollow cylindrical shape and is fitted over the support member 2. The tobacco sheet layer 1 can be heated to generate an aerosol, which is suitable for passing through the support member 2. The strap 7 secures the tobacco sheet layer 1 to the support member 2.

[0039] In one embodiment of this application, the strap 7 is located in the middle of the axial direction of the tobacco sheet layer 1, so that the weight of the tobacco sheet layer 1 on both sides of the strap 7 is basically the same, making the strap 7 more firmly fixed to the tobacco sheet layer 1.

[0040] The tobacco segment 10 provided in this application fixes the tobacco sheet layer 1 to the support member 2 by the strap 7, which makes the production process of the tobacco segment 10 simple, the structure of the tobacco segment 10 stable, and is conducive to the uniform heating of the tobacco segment 10 during the heating process.

[0041] In some examples, the strap 7 can be secured to the support tube 2 by fastening. In one embodiment of this application, the strap 7 includes a metal wire, cotton thread, hemp thread, resin strip, or fiber thread. The strap 7 binds the tobacco sheet layer 1 to the support tube 2, thereby fixing the tobacco sheet layer 1 to the support tube 2. Further, when the strap 7 is a metal wire, the two free ends of the strap 7 can be bound by twisting; when the strap 7 is a cotton thread, hemp thread, or fiber thread, the two free ends of the strap 7 can be secured by knotting; when the strap 7 is a resin strip, the two free ends of the strap 7 can be fixed together by heat fusion.

[0042] In one embodiment of this application, the support member 2 includes a metal tube, a paper tube, or a ceramic tube.

[0043] In one embodiment of this application, the thickness of the support member 2 is 0.1mm-1.0mm. In one embodiment of this application, the thickness of the support member 2 is 0.3mm-0.5mm. In one embodiment of this application, the thickness of the support member 2 is 0.1mm, 0.3mm, 0.5mm, 0.8mm, or 1.0mm.

[0044] In one embodiment of this application, the support member 2 is provided with ventilation holes penetrating both sides of the support member, allowing air or aerosol to pass through freely. In one embodiment of this application, the ventilation holes are arranged in an ordered or disordered manner. In another embodiment, the ventilation holes may be arranged in an array. In another embodiment of this application, the ventilation holes may be arranged in a centrally symmetrical or axially symmetrical pattern.

[0045] In one embodiment of this application, the cross-section of the vent hole is circular, polygonal, or irregular in shape. In another embodiment of this application, the cross-section of the vent hole is triangular, rectangular, circular, elliptical, racetrack-shaped, hexagonal, or other irregular in shape.

[0046] In one embodiment of this application, there are multiple vent holes, and the opening ratio of the multiple vent holes on the support member 2 is 20%-50%. In one embodiment of this application, the opening ratio of the multiple vent holes on the support member is 20%, 25%, 30%, 35%, 40%, 45%, or 50%.

[0047] In one embodiment of this application, the smoke sheet layer 1 may consist only of an aerosol-generating matrix, and the smoke sheet layer 1 may be heated by electromagnetic radiation, infrared rays, or microwaves to generate aerosols. In one embodiment of this application, when the smoke sheet layer 1 is electromagnetically heated, the support tube 2 may be a heat-sensitive metal.

[0048] In one embodiment of this application, the smoke sheet layer 1 includes a metal substrate 11 and an aerosol generating matrix layer 12. The metal substrate 11 is flexible, and the aerosol generating matrix layer 12 and the metal substrate 11 are stacked to form the smoke sheet layer 1. It should be noted that the term "stacked" in this application can be interpreted broadly, and can be a limitation on the positional relationship between two components, without specifically limiting the contact relationship (e.g., direct contact, or indirect contact) or connection relationship (e.g., no connection, fixed connection, or adhesive bonding).

[0049] In one embodiment of this application, the metal substrate 11 is in the form of a sheet.

[0050] In one embodiment of this application, the thickness of the metal substrate 11 is 4 μm-40 μm. In another embodiment, the thickness of the metal substrate 11 is 6 μm-30 μm. In yet another embodiment, the thickness of the metal substrate 11 is 10 μm-30 μm. In still another embodiment, the thickness of the metal substrate 11 is 4 μm, 6 μm, 10 μm, 12 μm, 15 μm, 20 μm, 18 μm, 20 μm, 25 μm, or 30 μm. The thickness of the metal substrate 11 allows it to maintain a certain structural strength to support the aerosol-forming matrix layer 12 coated thereon, while also maintaining a certain degree of flexibility so that it can be bent.

[0051] In one embodiment of this application, the metal substrate 11 comprises a sensitive metal or alloy that can be penetrated by a magnetic field and generate heat. When the metal substrate 11 is in a changing magnetic field, according to the law of electromagnetic induction, the magnetic flux passing through the metal substrate 11 changes, generating an induced electromotive force (EMF) within the metal substrate 11. Since the metal substrate 11 is a conductor with relatively low resistance, a closed loop is formed inside the metal substrate 11 under the influence of the induced EMF, generating induced eddy currents. As the eddy currents flow inside the metal substrate 11, electrical energy is converted into heat energy, thereby raising the temperature of the metal substrate 11. The heat generated by the metal substrate 11 can heat the aerosol generation matrix layer 12.

[0052] In one embodiment of this application, the metal substrate 11 comprises a soft magnetic alloy. Soft magnetic alloys are widely used in energy conversion and signal processing fields due to their core advantages of high electromagnetic response, low loss, and high saturation magnetization.

[0053] In one embodiment of this application, the metal substrate 11 includes aluminum foil, nickel-iron alloy, high-nickel alloy, stainless steel, or pure iron.

[0054] In one embodiment of this application, the metal substrate 11 includes a material with good thermal conductivity such as aluminum foil, copper foil or silver foil. The heat generated by the heating component of the aerosol generating device is conducted to the aerosol generating matrix layer 12 through the metal substrate, and the aerosol generating matrix layer 12 is heated to generate aerosol.

[0055] In one embodiment of this application, the metal substrate 11 is provided with through holes 111 penetrating both sides of the metal substrate 11, allowing air or aerosol to pass through freely. Thus, when the metal substrate 11 heats the aerosol generation matrix layer 12, aerosol is generated, and the aerosol can flow from one side of the metal substrate 11 to the other side through the through holes 111.

[0056] In one embodiment of this application, the through holes 111 are arranged in an ordered or random manner. In one embodiment of the application, the through holes 111 may be arranged in an array. In one embodiment of this application, the through holes 111 may be arranged in a circular, elliptical, racetrack-shaped, rectangular, triangular-hexagonal, or other shape. In one embodiment of this application, the through holes 111 may be arranged in a centrally symmetric or axially symmetric pattern.

[0057] In one embodiment of this application, the cross-section of the through hole 111 is circular, polygonal, or irregular in shape. In another embodiment of this application, the cross-section of the through hole 111 is triangular, rectangular, circular, elliptical, racetrack-shaped, hexagonal, or other irregular in shape.

[0058] In one embodiment of this application, there are multiple through holes 111, and the porosity of the multiple through holes 111 on the metal substrate 11 is 20%-50%. In another embodiment of this application, the porosity of the multiple through holes 111 on the metal substrate 11 is 20%, 25%, 30%, 35%, 40%, 45%, or 50%. This allows the aerosol to pass smoothly through the through holes 111 and flow freely on both sides of the metal substrate 11.

[0059] In one embodiment of this application, the through hole 111 is formed by machining or chemical etching. In one embodiment of this application, machining includes drilling or laser processing.

[0060] In one embodiment of this application, the thermal conductivity of the metal substrate 11 is at least 25 W / m•k. In another embodiment of this application, the thermal conductivity of the metal substrate 11 is 25 W / m•k, 30 W / m•k, 32 W / m•k, 35 W / m•k, 40 W / m•k, or 45 W / m•k.

[0061] In one embodiment of this application, the metal substrate 11 is formed by rolling and deposition.

[0062] In one embodiment of this application, the aerosol-generating matrix layer 12 includes 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.

[0063] 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.

[0064] In one embodiment of this application, the aerosol generation matrix layer 12 includes a first matrix layer 121 and a second matrix layer 122, which are disposed on both sides of the metal substrate 11.

[0065] In one embodiment of this application, the first matrix layer 121 contacts one side surface of the metal substrate 11, and the second matrix layer 122 contacts the other side surface of the metal substrate 11. Thus, the first matrix layer 121, the metal substrate 11, and the second matrix layer 122 are stacked together to form the smoke sheet layer 1.

[0066] In one embodiment of this application, a first matrix layer 121 and / or a second matrix layer 122 are coated on a metal substrate 11. In one embodiment of this application, a first matrix layer 121 is coated on a metal substrate 11. In one embodiment of this application, a second matrix layer 122 is coated on a metal substrate 11. In one embodiment of this application, both the first matrix layer 121 and the second matrix layer 122 are coated on a metal substrate 11.

[0067] In one embodiment of this application, the tobacco sheet layer 1 includes opposing first edges 13 and second edges 14. The tobacco sheet layer 1 is wound from the first edge 13 to the second edge 14 to form a hollow cylindrical shape, with a gap 15 between the first edge 13 and the second edge 14. The gap 15 in the tobacco sheet layer 1 prevents the two ends of the metal substrate 11 from overlapping, resulting in a more uniform temperature field distribution within the metal substrate 11. This avoids a low-temperature zone at the overlap of the two ends of the metal substrate 11, thus preventing insufficient heating of the aerosol generation matrix layer 12 corresponding to the overlap of the first edge 112 and the second edge 113.

[0068] In one embodiment of this application, the width of gap 15 is 0.1mm-3.0mm. In another embodiment of this application, the width of gap 15 is 0.1mm-1.0mm. In another embodiment of this application, the width of gap 15 is 1.0mm-3.0mm. In another embodiment of this application, the width of gap 15 is 0.1mm-0.5mm. In yet another embodiment of this application, the width of gap 15 is 0.1mm, 0.2mm, 0.5mm, 0.8mm, 1.0mm, 1.2mm, 1.5mm, 2.0mm, 2.5mm, or 3mm.

[0069] An embodiment of this application also provides an aerosol generating article 100, including a mouthpiece segment 20 and the aforementioned tobacco segment 10, wherein the tobacco segment 10 is connected to the mouthpiece segment 20.

[0070] In one embodiment of this application, the aerosol generating article 100 includes a plurality of tobacco segments 10. In another embodiment of this application, a fixing member 40 is provided between two adjacent tobacco segments 10, the fixing member 40 separating and fixing the two adjacent tobacco segments 10, and the fixing member 40 is provided with an air passage, through which air or aerosol can pass.

[0071] An embodiment of this application also provides an aerosol generation system 1000, including an aerosol generation device 200 and the aforementioned aerosol generation article 100, wherein the aerosol generation device 200 heats the composite smoke sheet 1 in the aerosol generation article 100 to generate aerosol.

[0072] An embodiment of this application also provides an aerosol generation system 1000, including an aerosol generation device 200 and the aforementioned tobacco segment 10, wherein the aerosol generation device 200 heats the composite tobacco sheet 1 in the tobacco segment 10 to generate aerosol.

[0073] 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. A tobacco segment, characterized in that, include: The support member is tubular; A sheet of tobacco, the sheet of tobacco being wound into a hollow cylindrical shape, the sheet of tobacco being sleeved on the support, the sheet of tobacco being heatable to generate an aerosol, the aerosol being adapted to pass through the support; A strap binds the tobacco sheet layer to the support.

2. The tobacco segment according to claim 1, characterized in that, The strap may be made of metal wire, cotton thread, hemp thread, resin strip, or fiber thread.

3. The tobacco segment according to claim 1, characterized in that, The tobacco sheet layer includes opposing first and second edges, and is wound from the first edge to the second edge to form a hollow cylindrical shape, with a gap between the first edge and the second edge.

4. The tobacco segment according to claim 1, characterized in that, The tobacco sheet layer includes a metal substrate and an aerosol generation matrix layer. The metal substrate is flexible, and the aerosol generation matrix layer and the metal substrate are stacked to form the tobacco sheet layer.

5. The tobacco segment according to claim 4, characterized in that, The aerosol generation matrix layer includes a first matrix layer and a second matrix layer, which are disposed on both sides of the metal substrate.

6. The tobacco segment according to claim 5, characterized in that, The first matrix layer and / or the second matrix layer are coated on the metal substrate.

7. The tobacco segment according to claim 4, characterized in that, The metal substrate is provided with through holes that penetrate both sides of the metal substrate.

8. The tobacco segment according to claim 1, characterized in that, The support member is provided with ventilation holes that penetrate both sides of the support member.

9. The tobacco segment according to claim 1, characterized in that, The belt is located at the middle of the axial direction of the tobacco sheet layer.

10. An aerosol-generating product, characterized in that, Includes the tobacco segment as described in any one of claims 1-9.

11. An aerosol generation system, characterized in that, include: Aerosol generating device; and The aerosol generating article of claim 10, wherein the aerosol generating device heats the composite smoke sheet to generate aerosol.

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