A heating cigarette core segment structure

Abstract

The utility model relates to a novel tobacco product field, concretely is a kind of heating cigarette tobacco core section structure, its characterized in that: including from inside to outside arrangement's cylindrical hollow support, tobacco sheet and cigarette paper composition, tobacco sheet is wound several rounds around cylindrical hollow support, forms a tobacco core with hollow, and cigarette paper is wrapped outside tobacco core.The utility model has the beneficial effect that:1, use hollow support to support the hole produced in the process of sheet rolling, prevent collapse in the process of cutting.2, support adopts large-area hollow design, while supporting the hole, maximum limit guarantees the release of smoke.3, support can be sprayed or impregnated essence spice, and different flavors are added to cigarette.

Description

Technical Field

[0001] This utility model relates to the field of novel tobacco products, specifically a structure for heated cigarette core segments. Background Technology

[0002] Heated cigarettes, as a new type of tobacco product, have been increasingly accepted by consumers both domestically and internationally in recent years due to their lower harmfulness. Traditional cigarettes, limited by the shape of the tobacco leaves, require the tobacco to be shredded before rolling. Heated cigarettes generally use tobacco sheets as the filler material. Compared to tobacco leaves, tobacco sheets have a more regular and controllable shape, allowing them to be rolled directly into the filler without the shredding process. Henan China Tobacco Industry Co., Ltd. has published a patent (publication number: CN105768191A) that directly uses tobacco sheets to roll into the filler, omitting the shredding process and simplifying the process. The filler also features a through-hole hollow channel in the center, facilitating smoke release. Guangdong China Tobacco Industry Co., Ltd. has published a patent (publication number: CN109567258A) that combines tobacco sheets and a heat-conducting substrate into a composite filler material, which is then directly rolled, enhancing heat transfer within the filler segment and further facilitating smoke release. Hubei China Tobacco Industry Co., Ltd. has published a patent (publication number: CN116784517A) that describes cutting a series of openings into a tobacco sheet, then stretching it, and using the resulting tobacco sheet with openings as the core material for rolling, thus achieving controllable adjustment of the cigarette's draw resistance. However, in actual production, due to limitations in the manufacturing process, it is impossible to guarantee that the core specifications are consistent after each rolling. Furthermore, during the cutting process, the hollow channels in the center of the core are prone to collapse, leading to significant fluctuations in cigarette quality. Therefore, this application focuses on proposing a heated cigarette core segment structure. Utility Model Content

[0003] The purpose of this utility model is to provide a heated cigarette core segment structure based on the above-mentioned existing technology. The heated cigarette core segment of this structure can prevent collapse during the cutting process, has good support, facilitates the release of smoke, and can add different flavors to the cigarette.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A heated cigarette core segment structure comprises a cylindrical hollow support, a tobacco sheet, and cigarette paper arranged from the inside out. The tobacco sheet is wrapped around the cylindrical hollow support several times to form a hollow core, and the cigarette paper is wrapped around the core.

[0006] Furthermore, the length of the cigarette core segment is 10-20mm and the diameter is 4-8mm.

[0007] Furthermore, the wall thickness of the cylindrical hollow support is 0.05-1mm, and the diameter of the cylindrical hollow support is 1-2mm. The specific thickness and diameter depend on the properties of the material used.

[0008] Furthermore, the hollow support material can be metal or polyetheretherketone (PEEK), which are high-temperature resistant, easy to process, and non-toxic.

[0009] Furthermore, the hollowed-out parts on the cylindrical hollow support can be in various shapes such as circles, triangles, squares, or rhombuses.

[0010] Furthermore, the cylindrical hollow support is sprayed or impregnated with flavorings to provide different flavors for the cigarettes. At the same time, the flavorings can act as an adhesive to prevent slippage between the sheet and the hollow support during the rolling process.

[0011] Furthermore, the preparation method of the metal hollow support is as follows: A thin metal sheet is laser-cut or machine-stamped to create regularly arranged openings of a specific shape. These openings are then cut into rectangular strips, with the shorter side of the strip slightly longer than the predetermined circumference of the hollow support. The rectangular strips are then rolled into hollow cylinders, and the joints are securely welded together.

[0012] Furthermore, polymer materials such as polyetheretherketone (PEEK) are produced using processes such as injection molding or rotational molding.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. Use a perforated support frame to support the holes generated during the rolling process of the thin sheet, and prevent it from collapsing during the cutting process.

[0015] 2. The support adopts a large-area hollow design, which supports the channel while maximizing the release of flue gas.

[0016] 3. The holder can be sprayed or soaked with flavorings to add different flavors to the cigarettes. Attached Figure Description

[0017] Figure 1 A schematic diagram of the cross-sectional structure of the cigarette core section of this utility model;

[0018] Figure 2 Front view and perspective view of the first type of cylindrical hollow support structure (the hollow part is circular);

[0019] Figure 3 Front view and perspective view of the second type of cylindrical hollow support structure (the hollow part is triangular);

[0020] Figure 4 Front view and perspective view of the third type of cylindrical hollow support structure (the hollow part is square);

[0021] In the picture: 1. Cigarette paper, 2. Tobacco sheet, 3. Hollowed-out support. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings (embodiments):

[0023] like Figure 1-4 As shown: A heated cigarette core segment structure includes a cylindrical hollow support 3, a tobacco sheet 2 and a cigarette paper 1 arranged from the inside to the outside. The tobacco sheet 2 is wrapped around the cylindrical hollow support 3 several times to form a hollow core, and the cigarette paper 1 is wrapped around the core.

[0024] The hollowed-out parts on the cylindrical hollowed-out bracket 3 can be in various shapes such as circles, triangles, squares or rhombuses.

[0025] Example 1

[0026] A circular perforated support frame was fabricated using PEEK material and manufactured via injection molding. The support frame has an inner diameter of 1.5 mm and a thickness of 1 mm, with a surface designed with a uniform array of circular perforations of 0.3 mm in diameter (see...). Figure 2 The support frame was immersed in a peppermint flavoring solution for 30 minutes, then dried and cured in a 45°C oven. The treated support frame was then combined with unflavored tobacco sheets and rolled five times to form a core segment, with a final core segment length of 15mm and a diameter of 5.2mm. Testing showed that this structure maintained over 98% of its perforation during the cutting process, and the peppermint flavor was released evenly.

[0027] Example 2

[0028] A triangular hollow support was fabricated using 0.1 mm thick iron foil via laser cutting. The sides of the triangles were 0.8 mm long (see...). Figure 3 The hollow section has a 65% perforation rate. After being rolled into a hollow cylindrical support, it is sprayed with a mixed solution of coffee flavoring and microcrystalline wax (mass ratio 3:1) as a binder and flavor carrier. The tobacco sheet is pre-treated into a 7mm wide strip and continuously wound 4 times around the support on an automatic rolling machine to form a 6mm diameter core segment, which is then laser-cut into 12mm length units. This structure showed no deformation in a 70℃ thermal stability test, and the draw resistance fluctuation range was controlled within ±150Pa.

Claims

1. A structure for heating cigarette core segments, characterized in that: It consists of a cylindrical hollow support frame arranged from the inside out, tobacco sheets and cigarette paper. The tobacco sheets are wrapped around the cylindrical hollow support frame several times to form a hollow core, and the cigarette paper is wrapped around the core.

2. The heated cigarette core segment structure according to claim 1, characterized in that: The length of the cigarette core section is 10-20mm and the diameter is 4-8mm.

3. The heated cigarette core segment structure according to claim 1, characterized in that: The wall thickness of the cylindrical hollow support is 0.05-1mm, and the diameter of the cylindrical hollow support is 1-2mm. The specific thickness and diameter depend on the properties of the material used.

4. The heated cigarette core segment structure according to claim 1 or 3, characterized in that: The hollowed-out parts on the cylindrical hollow support can be in various shapes such as circles, triangles, squares, or rhombuses.

5. The heated cigarette core segment structure according to claim 1 or 3, characterized in that: The cylindrical hollow support is sprayed or impregnated with flavorings to provide different flavors for the cigarettes. At the same time, the flavorings can also act as an adhesive to prevent slippage between the sheet and the hollow support during the rolling process.

6. The heated cigarette core segment structure according to claim 1, characterized in that: The cylindrical hollow support can be made of metal or polyetheretherketone (PEEK).

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