Cigarette

Abstract

The utility model discloses a cigarette, which comprises an aerosol generating substrate, a heating element and a heating element, a paper tube for surrounding and holding the aerosol-generating substrate; the sealing adhesive tape is used for sealing the bottom opening of the paper tube; wherein the sealing adhesive tape comprises a separating material layer, an adhesive coating layer and a base material layer, the separating material layer and the base material layer are arranged on the two sides of the adhesive coating layer respectively, when the bottom opening of the paper tube is sealed, the separating material layer is removed, and the base material layer is bonded with the paper tube through the adhesive coating layer. According to the utility model, the gluing step can be omitted, the phenomena of non-uniform gluing and glue overflowing do not exist, and the step of drying glue at high temperature does not exist, so that the sealing paper is not easy to lose water and crack.

Description

Technical Field

[0001] The utility model relates to the technical field of heat-not-burn cigarette sealing, in particular to a cigarette. Background Art

[0002] Heat-not-burn cigarettes are a new type of tobacco product that is different from traditional cigarettes. Heat-not-burn cigarettes add a large amount of atomizers (glycerin, propylene glycol, etc.) to tobacco materials. When the atomizer vaporizes after the tobacco materials are heated, nicotine is released in the form of a carrier, while producing very little tar and other harmful substances, thus providing consumers with an effective and healthy way to smoke, and are becoming more and more popular among consumers.

[0003] Existing heat-not-burn cigarettes are mainly filled with tobacco particles with a certain fluidity. In order to prevent the particles from spilling during particle filling, transportation, cigarette use, etc., the paper tube must be sealed. C112641135A discloses end-sealing paper, a sealing method, and a smoking device for heat-not-burn cigarettes. The sealing method in this application is as follows: select the end-sealing paper of the heat-not-burn cigarette; apply adhesive on the inner side of the end-sealing paper of the heat-not-burn cigarette and / or the end of the heat-not-burn cigarette close to its smoke-generating particles; press the end-sealing paper of the heat-not-burn cigarette on the end of the heat-not-burn cigarette close to its smoke-generating particles and keep it for a period of time. While keeping it for a period of time, use a heating device to heat the bonding area and the heating temperature of the heating device is 100-300℃. With the above sealing method, it is difficult for operators to ensure the uniformity of glue coating, and glue overflow may even occur. In addition, during the adhesive heating stage, the end-sealing paper loses water quickly at high temperature and becomes brittle, causing the end-sealing paper to break (the actual statistical breakage rate in production is greater than 15%), which seriously affects the quality of the cigarette. In addition, during the user's smoking process, the hydrophobicity of the glue will affect the circulation of smoke and increase the resistance of the user's inhalation. Utility Model Content

[0004] The purpose of the utility model is to solve the problems of uneven glue coating, easy glue overflow, easy rupture of sealing paper during the glue curing stage, and poor air permeability during the user's inhalation stage in the existing sealing technology. The utility model provides a cigarette, which can use the glue layer on the sealing tape to seal the empty tube end of the cigarette paper tube, thereby eliminating the glue coating step and achieving the effect of no uneven glue coating and glue overflow; and when the sealing tape is used to seal the cigarette, it is only necessary to bond the glue layer to the cigarette paper tube, and there is no high-temperature glue drying step, so that the base material layer is not easy to rupture due to water loss. In addition, air permeability is increased by providing air holes in the sealing tape.

[0005] In order to solve the above technical problems, the embodiment of the utility model discloses a cigarette, comprising:

[0006] an aerosol-generating substrate configured to generate an aerosol when heated;

[0007] A paper tube (101) for surrounding and retaining an aerosol generating substrate;

[0008] Sealing tape (102), used for sealing the bottom opening of the paper tube (101);

[0009] The sealing tape comprises a release layer (1), a coating layer (2) and a base layer (3), wherein the release layer (1) and the base layer (3) are respectively arranged on both sides of the coating layer (2); when the bottom opening of the paper tube (101) is sealed, the release layer (1) is removed, and the base layer (3) is bonded to the paper tube (101) via the coating layer (2).

[0010] The utility model seals the empty tube end of the cigarette paper tube by using a sealing tape having a three-layer structure of a release layer, a coating layer and a base layer. The coating layer can make the base layer and the cigarette paper tube bond together, eliminating the glue coating step of the traditional sealing technology, and thus there is no uneven glue coating and glue overflow. In addition, when the cigarette paper tube is sealed by the coating layer of the sealing tape, it is only necessary to bond the coating layer to the cigarette paper tube, and there is no high-temperature glue drying step, which can ensure that the base layer is not easy to break due to water loss, thereby ensuring the quality of the cigarette.

[0011] According to another specific embodiment of the utility model, the embodiment of the utility model discloses that the adhesive layer (2) and the substrate layer (3) are provided with a plurality of air holes (4).

[0012] According to another specific embodiment of the utility model, the embodiment of the utility model discloses that the diameter of the air hole (4) is set in the range of 0.2mm-0.8mm and is smaller than the diameter of the smoke particles of the cigarette.

[0013] According to another specific embodiment of the utility model, the embodiment of the utility model discloses that the air holes (4) are set to 30-200 / cm 2 .

[0014] According to another specific embodiment of the utility model, the embodiment of the utility model discloses that the air permeability of the sealing tape (102) is 6000-12000cu.

[0015] According to another specific embodiment of the present invention, the embodiment of the present invention discloses that the substrate layer (3) is configured as a high-air-permeability forming paper layer, and the thickness of the high-air-permeability forming paper layer is 0.02 mm-0.2 mm.

[0016] According to another specific embodiment of the utility model, the embodiment of the utility model discloses that the basis weight of the high air permeability forming paper layer is 10-55g / m2 .

[0017] According to another specific embodiment of the utility model, the embodiment of the utility model discloses that the thickness of the adhesive layer (2) is set to 25 μm-200 μm. .

[0018] According to another specific embodiment of the present invention, the embodiment of the present invention discloses that the release layer (1) is configured as release paper. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram showing the structure of a sealed cigarette according to a specific embodiment of the utility model;

[0020] Figure 2 A cross-sectional view of a sealed cigarette according to a specific embodiment of the utility model is shown;

[0021] Figure 3 A schematic structural diagram of a sealing tape in a specific embodiment of the utility model is shown. DETAILED DESCRIPTION

[0022] The following is an explanation of the implementation of the present invention by specific specific embodiments. Those skilled in the art can easily understand other advantages and functions of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this utility model are limited to this implementation. On the contrary, the purpose of introducing the utility model in conjunction with the implementation is to cover other options or modifications that may be extended based on the claims of the present invention. In order to provide a deep understanding of the present invention, the following description will include many specific details. The present invention can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present invention, some specific details will be omitted in the description. It should be noted that, in the absence of conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0023] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0024] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0025] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0026] In the description of this embodiment, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connected", and "connected" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances.

[0027] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0028] like Figure 1 , Figure 2 and Figure 3 As shown, an embodiment of the utility model provides a cigarette, including: an aerosol generating substrate (not shown in the figure), a paper tube 101 and a sealing tape 102.

[0029] In particular, the aerosol-generating substrate is configured to generate an aerosol when heated.

[0030] The paper tube 101 is used to surround and hold the aerosol generating substrate.

[0031] The sealing tape 102 is used to seal the bottom opening of the paper tube 101 .

[0032] The sealing tape includes a release layer 1, a coating layer 2 and a base layer 3. The release layer 1 and the base layer 3 are respectively arranged on both sides of the coating layer 2. When the bottom opening of the paper tube 101 is closed, the release layer 1 is removed, and the base layer 3 is bonded to the paper tube 101 through the coating layer 2.

[0033] The applicant has fully considered the problems that may occur when sealing the cigarette paper tube 101. By using a sealing tape having a three-layer structure of a release layer 1, a coating layer 2, and a base layer 3 to seal the empty end of the cigarette paper tube 101, the coating layer 2 can make the base layer 3 and the cigarette paper tube 101 bond together, eliminating the glue coating step of the traditional sealing technology, and thus eliminating the phenomenon of uneven glue coating and glue overflow. In addition, when sealing the cigarette paper tube 101 with the coating layer 2 of the sealing tape, it is only necessary to bond the coating layer 2 to the cigarette paper tube 101, and there is no step of high-temperature glue drying, which can ensure that the base layer 3 is not easily broken due to water loss, thereby ensuring the quality of the cigarette.

[0034] Specifically, when the empty tube end of the cigarette paper tube 101 needs to be sealed, the operator first needs to place the sealing tape 102 on the roller, and use the roller to peel off the release paper 1 on the sealing tape 102. At this time, the sealing tape 102 with the release layer 1 removed is on the operating platform. And the operating platform has a low-temperature preheating function to moderately soften the glue of the adhesive layer 2, which helps to increase the viscosity. Subsequently, the cigarette paper tube 101 can be placed perpendicular to the sealing tape 102 after the previous step, and contact with the operating platform and stress extrusion occurs. At this time, the cigarette paper tube 101 and the adhesive layer 2 are bonded, and then laser cutting or other traditional offset cutting equipment is used to cut off the excess sealing tape 102 after sealing, completing the sealing process of the cigarette paper tube 101.

[0035] Further, refer to Figure 3 The adhesive layer 2 and the base material layer 3 are provided with a plurality of air holes 4.

[0036] Specifically, the number of vent holes 4 is 30-200 / cm 2 .

[0037] Furthermore, the air permeability of the sealing tape 102 is 6000-12000cu.

[0038] The cigarette of the utility model has a plurality of air holes 4 on the rubber coating layer 2 and the base material layer 3, thereby increasing its air permeability, so that when the heating target heats the smoke-generating particles, external air enters the cigarette, which is helpful for the generation and circulation of smoke from the smoke-generating particles.

[0039] Specifically, the diameter of the air holes 4 is set within the range of 0.2 mm to 0.8 mm, and is smaller than the diameter of the smoke particles of the cigarette. By setting the diameter of the air holes 4 to be smaller than the diameter of the smoke particles of the cigarette, it is ensured that the smoke particles are not spilled during transportation and use.

[0040] Specifically, the substrate layer 3 is configured as a high air permeability forming paper layer, and the thickness of the high air permeability forming paper layer is 0.02 mm-0.2 mm.

[0041] Furthermore, the basis weight of the high air permeability forming paper layer is 10-55 g / m 2 .

[0042] Specifically, the thickness of the adhesive layer 2 is set to 25 μm-200 μm.

[0043] The cigarette of the utility model not only ensures the adhesion between the substrate layer 3 and the cigarette paper tube 101 by setting parameters such as the thickness of the substrate layer 2 and the coating layer 2, but also designs a sealing tape 102 that is air-permeable and lightweight.

[0044] Exemplarily, the release layer 1 is set as release paper.

[0045] Specifically, the release paper 1 can be plastic release paper or plastic-free release paper. The operator can select the type of release paper 1 according to actual production needs to better isolate the contact between the adhesive layer 2 and the outside world, thereby ensuring the quality of the sealing tape 102.

[0046] It should be noted that, in the examples and description of the present utility model, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise one" do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0047] Although the present invention has been illustrated and described with reference to certain preferred embodiments of the present invention, it should be understood by those skilled in the art that the above contents are further detailed descriptions of the present invention in combination with specific embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. Those skilled in the art may make various changes in form and details, including making several simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A cigarette, characterized in that: include: an aerosol-generating substrate configured to generate an aerosol when heated; A paper tube (101) for surrounding and holding the aerosol generating substrate; A sealing tape (102) for sealing the bottom opening of the paper tube (101); The sealing tape comprises a release layer (1), a coating layer (2) and a base layer (3); the release layer (1) and the base layer (3) are respectively arranged on both sides of the coating layer (2); when the bottom opening of the paper tube (101) is sealed, the release layer (1) is removed, and the base layer (3) is bonded to the paper tube (101) through the coating layer (2).

2. The cigarette according to claim 1, characterized in that: The adhesive coating layer (2) and the base material layer (3) are provided with a plurality of air permeable holes (4).

3. The cigarette according to claim 2, characterized in that: The diameter of the ventilation holes (4) is set in the range of 0.2 mm to 0.8 mm, and is smaller than the diameter of the smoke particles of the cigarette.

4. The cigarette according to claim 2, characterized in that: The ventilation holes (4) are set at 30-200 / cm 2 .

5. The cigarette according to any one of claims 1 to 4, characterized in that: The air permeability of the sealing tape (102) is 6000-12000cu.

6. The cigarette according to any one of claims 1 to 4, characterized in that: The substrate layer (3) is configured as a high-air-permeability forming paper layer, and the thickness of the high-air-permeability forming paper layer is 0.02 mm-0.2 mm.

7. The cigarette according to claim 6, characterized in that: The basis weight of the high air permeability forming paper layer is 10-55 g / m 2 .

8. The cigarette according to any one of claims 1 to 4, characterized in that: The thickness of the adhesive layer (2) is set to be 25 μm-200 μm.

9. The cigarette according to any one of claims 1 to 4, characterized in that: The release layer (1) is configured as release paper.

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