Double-closure tar reduction filter stick

Abstract

A double-closure tar reduction filter stick relates to the technical field of cigarettes and comprises a filter element and a wrapping layer (1), the wrapping layer (1) wraps the periphery of the filter element, the filter element comprises a spiral paper filter stick section (2) and a variable-diameter filter stick section (3), the spiral paper filter stick (2) is a cylinder formed by rolling groove paper, the direction of a groove is inclined to the axis, the groove (4) is spirally wound, and the diameter of the spiral paper filter stick section (2) is larger than that of the variable-diameter filter stick section (3). The variable-diameter filter stick section (3) is formed by connecting two cylinders with different diameters, after the filter tips are cut, each filter tip comprises a spiral paper filter stick section (2) and a variable-diameter filter stick section (3), and the small-diameter end of the variable-diameter filter stick section (3) is connected with the spiral paper filter stick. Compared with a traditional composite filter stick, the composite filter stick intercepts air flow at two positions, intercepts more tar, and is better in tar reduction effect.

Description

Technical Field

[0001] This utility model relates to the field of cigarette technology, specifically to a filter rod with a secondary interception and tar reduction function. Background Technology

[0002] Cigarette filters are an important component of cigarettes, serving to filter smoke. Currently, most cigarette filters on the market use cellulose diacetate as their raw material, which has a limited effect on filtering tar. To further reduce tar levels in cigarettes, decrease smokers' tar intake, mitigate the damage of tar to the cardiovascular system, and protect consumers' physical and mental health, the market urgently needs to develop filters with better tar-retaining capabilities. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a dual-flow tar-reducing filter rod with better tar filtration effect.

[0004] The technical solution of this utility model is: a dual-interceptor slag reduction filter rod, including a filter element and a wrapping layer. The wrapping layer wraps around the filter element. The filter element includes a spiral paper filter rod segment and a variable diameter filter rod segment. The spiral paper filter rod is a cylinder made of grooved paper. The direction of the grooves is oblique to the axis, so that the grooves are spirally wound. The variable diameter filter rod segment is composed of two cylinders of different diameters connected together. After being cut into filter nozzles, each filter nozzle contains a spiral paper filter rod segment and a variable diameter filter rod segment, and the small diameter end of the variable diameter filter rod segment is connected to the spiral paper filter rod.

[0005] The technical advantages of this invention are: the paper rod has better adsorption and filtration capabilities than cellulose diacetate, and the spiral grooves significantly increase the contact area between the paper rod and the smoke. The spiral paper rod has micropores on its end face, which, combined with the variable-diameter filter rod section, reduces tar content by controlling the flow velocity of the smoke. The smoke speed increases as it passes through the micropores and slows down as it passes through the cavity in the mouthpiece. The smoke briefly lingers in the cavity, which is more conducive to tar settling. Smoke dust in the smoke also settles in the cavity during the slowing process, forming a mixture with the tar, thus trapping a large amount of harmful substances within the cavity. Compared to traditional composite filter rods, this design intercepts airflow at two points, trapping more tar and achieving a better tar reduction effect. Attached Figure Description

[0006] Figure 1 This is a schematic diagram of the structure of this utility model;

[0007] Figure 2 This is a schematic diagram of the structure of the present invention after being cut into filter tips. Detailed Implementation

[0008] like Figure 1 and 2As shown, a dual-flow slag-reducing filter rod includes a filter element and a wrapping layer 1. The wrapping layer 1 wraps around the filter element. The filter element comprises a spiral paper filter rod segment 2 and a variable-diameter filter rod segment 3. The spiral paper filter rod 2 is a cylinder made of grooved paper, with the grooves oriented obliquely to the axis, forming a spiral wound shape. The variable-diameter filter rod segment 3 is composed of two cylinders of different diameters connected together. After being cut into filter nozzles, each nozzle contains a spiral paper filter rod segment 2 and a variable-diameter filter rod segment 3, with the smaller diameter end of the variable-diameter filter rod segment 3 connected to the spiral paper filter rod. The wrapping layer is a shaped paper that wraps around the two filter rod segments, forming a cavity at the smaller diameter section of the variable-diameter filter rod segment.

[0009] At least one side of the paper used to roll the spiral paper filter rod segment 2 is provided with activated carbon particles. Activated carbon can improve the flue gas adsorption effect.

[0010] The variable diameter filter rod section 3 is made of cellulose diacetate.

[0011] The cylinders of different diameters in the variable diameter filter rod section 3 are connected by a slope transition.

[0012] The spiral paper filter rod segment 2 has a strength of 40-50 g / m 2 Made of high basis weight paper.

Claims

1. A dual-interceptor slag-reducing filter rod, comprising a filter element and a wrapping layer (1), wherein the wrapping layer (1) wraps around the filter element, characterized in that, The filter element includes a spiral paper filter rod segment (2) and a variable diameter filter rod segment (3). The spiral paper filter rod segment (2) is a cylinder made of grooved paper. The direction of the groove is set obliquely to the axis, so that the groove (4) is spirally wound. The variable diameter filter rod segment (3) is composed of two cylinders of different diameters connected together. After being cut into filter nozzles, each filter nozzle contains a spiral paper filter rod segment (2) and a variable diameter filter rod segment (3), and the small diameter end of the variable diameter filter rod segment (3) is connected to the spiral paper filter rod.

2. The dual-flow descaling filter rod as described in claim 1, characterized in that, At least one side of the paper used to roll the spiral paper filter rod segment (2) is provided with activated carbon particles.

3. The dual-flow descaling filter rod as described in claim 1, characterized in that, The variable diameter filter rod segment (3) is made of cellulose diacetate.

4. The dual-flow descaling filter rod as described in claim 1 or 3, characterized in that, The cylinders of different diameters in the variable diameter filter rod section (3) are connected by a slope transition.

5. The dual-flow descaling filter rod as described in claim 1 or 2, characterized in that, The spiral paper filter rod segment (2) has a strength of 40-50 g / m 2 Made of high basis weight paper.

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