Hollow composite filter stick with variable draw resistance

Abstract

A hollow composite filter stick with variable draw resistance relates to the technical field of cigarettes and comprises a filter element and a wrapping layer (1), the filter element comprises a plurality of cylindrical first filter element sections (2) and a plurality of cylindrical second filter element sections (3), the first filter element sections (2) are formed by spirally curling crepe paper from inside to outside, and the second filter element sections (3) are formed by spirally curling crepe paper from inside to outside. A cavity section (4) is arranged between the first filter element section (2) and the second filter element section (3) at an interval, the first filter element section (2), the cavity section (4) and the second filter element section (3) are arranged in sequence, and after the first filter element section (2), the cavity section (4) and the second filter element section (3) are cut into the filter tip, each section of the filter tip comprises one section of the first filter element section (2), one section of the cavity section (4) and one section of the second filter element section (3). The contact area between smoke and the surface of crepe paper can be reduced by pushing the paper filter stick at the near lip end inwards, and the suction resistance of the filter stick is reduced. And on the premise of ensuring tar adsorption, the smoking experience feeling is improved.

Description

Technical Field

[0001] This utility model relates to the field of cigarette technology, specifically to a paper and cellulose acetate ternary hollow composite filter rod that changes the draw resistance by adjusting the filter element state. Background Technology

[0002] Current cigarette filters mainly consist of cellulose acetate filters and paper filters. Cellulose acetate filters have the drawback of poor tar filtration. While paper filters offer significantly improved tar filtration, their draw resistance is generally higher. Although the two can be combined to create a composite filter to adjust both tar filtration and draw resistance, the draw resistance cannot be manually altered once a composite filter is used to create a cigarette filter. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a hollow composite filter rod with variable draw resistance made of both cellulose acetate tow and crepe paper, which can automatically adjust the draw resistance of the cigarette filter when smoking.

[0004] The technical solution of this utility model is: a hollow composite filter rod with variable suction resistance, comprising a filter element and a wrapping layer. The filter element includes several first filter element segments and several second filter element segments, all of which are cylindrical. Each first filter element segment is formed by spirally rolling crepe paper from the inside out. A cavity segment separates the first and second filter element segments. The first filter element segments, cavity segments, and second filter element segments are arranged sequentially. After being cut into filter nozzles, each filter nozzle contains one first filter element segment, one cavity segment, and one second filter element segment. The second filter element segments are made of cellulose diacetate filaments.

[0005] The technical advantage of this invention is that by pushing the paper filter rod near the lip end inward, the contact area between the smoke and the surface of the crepe paper is reduced, thus lowering the filter rod's suction resistance. This improves the vaping experience while ensuring tar adsorption. Attached Figure Description

[0006] Figure 1 This is a cross-sectional structural diagram of the present invention;

[0007] Figure 2 This is a schematic diagram of the structure of the filter tip after being cut into sections according to this utility model;

[0008] Figure 3 for Figure 2 A schematic diagram of the structure after pressing. Detailed Implementation

[0009] like Figure 1 , 2As shown in Figure 3, a hollow composite filter rod with variable draw resistance includes a filter element and a wrapping layer 1. The filter element comprises several first filter segments 2 and several second filter segments 3, all of which are cylindrical. The first filter segments 2 are formed by spirally rolling crepe paper from the inside out, with a planar spiral cross-section. A cavity segment 4 separates the first filter segments 2 and the second filter segments 3. The first filter segments 2, the cavity segment 4, and the second filter segments 3 are arranged sequentially. After being cut into filter tips, each filter tip contains one first filter segment 2, one cavity segment 4, and one second filter segment 3. After being made into a cigarette filter tip, the first filter segment is located near the lip end. The consumer can press the paper first filter segment inward in a conical shape. This reduces the contact area between each paper layer, thereby changing the draw resistance. The second filter segments can be made of materials including cellulose acetate and paper.

[0010] The second filter element section 3 is made of cellulose diacetate filament bundles.

[0011] The wrapping layer 1 is made of shaped paper.

[0012] The wrapping layer 1 is made of a transparent material, such as transparent paper, which allows the internal structure of the filter element to be seen, improving the visual experience.

[0013] The length of the first filter element section 2 is 6 to 12 millimeters.

[0014] The length of the second filter element section 3 is 5 to 15 millimeters.

[0015] The length of the cavity section 4 is 5-10 mm. If the cavity section is too long, the support capacity of the hollow part will be too low, affecting the cigarette rolling efficiency and the smoking experience. If it is too short, it will hinder the inward retraction of the paper filter element of the first filter section.

Claims

1. A hollow composite filter rod with variable suction resistance, comprising a filter element and a wrapping layer (1), characterized in that, The filter element includes several first filter element segments (2) and several second filter element segments (3), all of which are cylindrical. The first filter element segment (2) is made by spirally rolling crepe paper from the inside out. There is a cavity segment (4) between the first filter element segment (2) and the second filter element segment (3). The first filter element segment (2), the cavity segment (4) and the second filter element segment (3) are arranged in sequence. After being cut into filter nozzles, each filter nozzle contains a first filter element segment (2), a cavity segment (4) and a second filter element segment (3).

2. The hollow composite filter rod with variable suction resistance as described in claim 1, characterized in that, The second filter element section (3) is made of cellulose diacetate filament bundles.

3. The hollow composite filter rod with variable suction resistance as described in claim 1, characterized in that, The wrapping layer (1) is made of shaped paper.

4. The hollow composite filter rod with variable suction resistance as described in claim 1, characterized in that, The wrapping layer (1) is made of a transparent material.

5. The hollow composite filter rod with variable suction resistance as described in claim 1, characterized in that, The length of the first filter element section (2) is 6 to 12 millimeters.

6. The hollow composite filter rod with variable suction resistance as described in claim 1, characterized in that, The length of the second filter element section (3) is 5 to 15 mm.

7. The hollow composite filter rod with variable suction resistance as described in any one of claims 1 to 6, characterized in that, The length of the cavity section (4) is 5 to 10 millimeters.

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