Double-cooling countersunk filter stick
The countersunk filter rod with a dual cooling structure, which combines paper rod segments and hollow segments, solves the problems of poor cooling effect and weak support strength of traditional countersunk filter rods, achieving more efficient filtration and cooling effects, while improving the suction experience and fun.
Patent Information
- Application Number
- CN202423061149.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-12-12
AI Technical Summary
Traditional countersunk filter rods have poor cooling effect, and the increased cavity length leads to poor support strength, easy collapse, and low filtration efficiency.
It adopts a dual cooling structure, including a filter element and a wrapping layer. The filter element consists of a paper rod segment, a cavity segment, and a cellulose acetate segment. Each filter nozzle contains two cavity segments, one paper rod segment, and one cellulose acetate segment. The transparent wrapping layer surrounds the outer part, forming a visible ternary composite filter rod.
It improves filtration efficiency, reduces the impact of hot smoke, enhances the smoking experience, avoids collapse, and increases enjoyment.
Smart Images

Figure CN223503715U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cigarette technology, specifically to a countersunk filter rod with a dual cooling effect. Background Technology
[0002] Traditional cigarette cooling primarily relies on the filtration between the tobacco at the rear end and the filter element in the mouthpiece to lower the smoke temperature to a comfortable smoking temperature. Countersunk filter rods, with a cavity added to the end of the filter section, further enhance this cooling effect. The advantages of traditional countersunk filter rods are reduced tobacco usage and reduced smoke overheating due to the cavity. However, the low tobacco content results in low filtration efficiency, and the cooling effect needs further improvement. Increasing the length of the countersunk cavity can improve cooling, but this further reduces tobacco usage and weakens the support strength at the cavity, making it prone to collapse. Summary of the Invention
[0003] The technical problem to be solved by this utility model is: to provide a dual-cooling countersunk filter rod with better cooling effect.
[0004] The technical solution of this utility model is: a dual-cooling countersunk filter rod, including a filter element and a wrapping layer. The filter element includes a paper rod segment, a hollow segment and an acetate segment. After being cut into filter tips, each filter tip includes two hollow segments, one paper rod segment and one acetate segment. The two hollow segments are the first hollow segment and the second hollow segment, respectively. The first hollow segment, the paper rod segment, the second hollow segment and the acetate segment are arranged in sequence from the lip end to the smoke end.
[0005] The technical advantages of this invention are as follows: The countersunk paper filter improves the filtration efficiency of the filter rod and reduces the amount of acetate fiber used. The double-cavity design effectively reduces the impact of hot smoke, improves the smoking experience, and prevents collapse. Replacing part of the acetate fiber with paper filter material to form a countersunk structure enhances the filter rod's filtration and cooling effects. The transparent wrapping layer creates a visible ternary composite filter rod, allowing consumers to directly observe the internal structure and the flow of cigarette smoke during inhalation, thus increasing the enjoyment of smoking. 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-cooling countersunk filter rod includes a filter element and a wrapping layer 1. The wrapping layer surrounds the filter element. The filter element includes a paper rod segment 2, a cavity segment, and an acetate segment 3. After being cut into filter tips, each filter tip contains two cavity segments, one paper rod segment 2, and one acetate segment 3. The two cavity segments are designated as a first cavity segment 4 and a second cavity segment 5, and the first cavity segment 4, paper rod segment 2, second cavity segment 5, and acetate segment 3 are arranged sequentially from the lip end to the smoke end. The first cavity segment and paper rod segment at the lip end of the filter tip form a countersunk paper rod structure. The countersunk tip and the middle second cavity segment constitute a dual-cooling structure, resulting in a significant cooling effect.
[0009] The acetate segment 3 is made of cellulose diacetate filament bundles.
[0010] The paper rod segment 2 is made of crepe paper. Paper filter cartridges have a stronger filtration effect than cellulose acetate filter cartridges and can achieve better filtration results in a smaller size.
[0011] The wrapping layer 1 is made of a transparent material.
[0012] The wrapping layer 1 is made of transparent paper. The wrapping layer uses high-hardness molded paper, which can solve the problems of traditional paper sticks being non-round and having low hardness.
[0013] The coating layer 1 has a strength of 50-150 g / m³. 2 Made of high basis weight paper. The wrapping layer is made of a thicker and more upright material, which improves roundness and firmness and solves the problem of easy collapse in the cavity.
Claims
1. A dual-cooling countersunk filter rod, comprising a filter element and a wrapping layer (1), characterized in that, The filter element includes a paper rod segment (2), a cavity segment, and an acetate segment (3). After being cut into filter tips, each filter tip contains two cavity segments, one paper rod segment (2), and one acetate segment (3). The two cavity segments are the first cavity segment (4) and the second cavity segment (5), and the first cavity segment (4), the paper rod segment (2), the second cavity segment (5), and the acetate segment (3) are arranged in sequence from the lip end to the cigarette end.
2. The dual-cooling countersunk filter rod as described in claim 1, characterized in that, The acetate segment (3) is made of cellulose diacetate filament bundles.
3. The dual-cooling countersunk filter rod as described in claim 1, characterized in that, The paper rod segment (2) is made of crepe paper.
4. The dual-cooling countersunk filter rod as described in claim 1, characterized in that, The wrapping layer (1) is made of a transparent material.
5. The dual-cooling countersunk filter rod as described in claim 4, characterized in that, The wrapping layer (1) is made of transparent paper.
6. The dual-cooling countersunk filter rod as described in any one of claims 1 to 5, characterized in that, The coating layer (1) is made of 50-150 g / m 2 Made of high basis weight paper.