Tar-reducing ternary composite filter tip cigarette
By adopting a ternary composite filter structure, the use of vinegar fiber material and multiple small hole designs to change the flue gas flow rate and path to form turbulence, solving the problem of difficulty in effectively reducing the tar content in existing cigarette technology, and achieving a simple structure and easy-to-control production reduction effect.
Patent Information
- Application Number
- CN202421504813.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-28
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-06-28
AI Technical Summary
Existing cigarette technology is difficult to effectively reduce the tar content while maintaining the good taste of the smoke.
The ternary composite filter structure is adopted, including hollow filter section, coaxial filter section and solid filter section. Through the design of vinegar fiber material and multiple small holes, the flue gas flow rate and path are changed to form turbulence, thereby improving the deposition efficiency of tar.
It achieves a simple structure and easy-to-control production reduction effect, no need for external air dilution, avoids negative impact on the taste of smoke, and significantly improves the deposition efficiency of tar.
Smart Images
Figure CN222997413U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cigarettes, in particular to a ternary composite filter cigarette with good tar reduction effect. Background Art
[0002] Tar reduction and harm reduction have always been a popular direction in the cigarette industry. To achieve the effect of tar reduction, there are generally the following forms in the industry: 1. Increasing the ventilation rate of the cigarette. By simply increasing the ventilation rate of the cigarette, the principle of tar reduction is that external air dilutes the mainstream smoke, thus achieving the tar reduction effect. This solution has an obvious tar reduction effect, but generally has a greater impact on the taste of the smoke. 2. Using grooved filter rods. The grooved filter rods themselves have certain foreign odors in the cellulose paper, and the cellulose paper has water absorption, which will have a certain negative impact on the senses. 3. Activated carbon fixed composite filter rods. The quality of tar reduction depends to a large extent on the quality of the activated carbon. And the processing process is relatively complex. Summary of the Invention
[0003] The technical problem to be solved by the utility model is: aiming at the above problems, to provide a ternary composite filter cigarette with good tar reduction effect.
[0004] The technical solution of the utility model is: a tar-reducing ternary composite filter cigarette, which comprises two parts: a cigarette stick and a filter tip. The filter tip includes a hollow filter section, a coaxial filter section and a solid filter section. The hollow filter section is longitudinally provided with a circular cavity penetrating through both ends at the axis. A plurality of longitudinally arranged grooves are evenly distributed on the inner wall of the circular cavity. The coaxial filter section is composed of a solid inner core in the middle and an outer filter layer wrapped around the periphery of the inner core. The diameter of the inner core is slightly larger than the circular cavity of the hollow filter section and smaller than the grooves on the circular cavity. The hollow filter section, the coaxial filter section and the solid filter section are arranged in sequence from the near-cigarette end to the near-lip end.
[0005] The technical effect of the utility model is: it has the advantages of simple structure and processing process, easy to produce, and can reduce production costs. It does not require external air dilution and will not have a great impact on the taste. It uses cellulose acetate material, which is not water-absorbent and has no foreign smell. After different cellulose acetate filter rods are combined, a plurality of small holes with a diameter of 0.5-1 mm are formed. The smoke flows through the small holes from the cellulose acetate section and then through the cellulose acetate section. The gas flow rate changes from slow to fast and then to slow, changing the smoke flow rate and path, forming turbulence, and significantly improving the deposition efficiency of the smoke. Tar and other particulate matters are deposited near the small holes, thus achieving the purpose of tar reduction and harm reduction. Brief Description of the Drawings
[0006] Figure 1 It is a schematic cross-sectional structure diagram of the utility model;
[0007] Figure 2 It is a schematic cross-sectional structure diagram of the hollow filter section of the utility model;
[0008] Figure 3 This is a schematic cross-sectional structure diagram of the coaxial filter section of the present utility model. Specific embodiments
[0009] As Figure 1 、 2 As shown in FIGS. 1, 2 and 3, a reduced-tar ternary composite filter cigarette includes a cigarette rod 1 and a filter tip. The filter tip includes a hollow filter section 2, a coaxial filter section 3 and a solid filter section 4. A circular cavity 5 penetrating both ends is longitudinally provided at the axis of the hollow filter section 2. A plurality of longitudinally arranged grooves 6 are evenly distributed on the inner wall of the circular cavity 5. In cross-section, the circular cavity and the strip-shaped grooves form a gear shape. The coaxial filter section 3 is composed of an inner core 7 with a solid middle and an outer filter layer 8 wrapped around the outer periphery of the inner core 7. The diameter of the inner core 7 is slightly larger than the circular cavity 5 of the hollow filter section 2 and smaller than the groove 6 on the circular cavity 5. The hollow filter section 2, the coaxial filter section 3 and the solid filter section 4 are arranged in sequence from the near-cigarette end to the near-lip end.
[0010] The number of grooves 6 on the inner wall of the cavity of the hollow filter section 2 is at least 3.
[0011] The material of the inner core 7 of the coaxial filter section 3 is diacetate cellulose.
[0012] The outer filter layer 8 of the coaxial filter section 3 is composed of diacetate cellulose tow.
[0013] The solid filter section 4 is composed of diacetate cellulose tow.
[0014] The diameter of the inner core 7 of the coaxial filter section 3 is 3.15 mm.
[0015] The outer diameter of the circumscribed circle of the groove 6 on the circular cavity 5 of the hollow filter section 2 is 4.55 mm.
[0016] The width of the groove 6 on the circular cavity 5 of the hollow filter section 2 is 0.7 mm.
[0017] The mainstream smoke flows through the cavity of the hollow filter section at the near-cigarette end of the filter tip to the coaxial filter section with a solid middle and a loose acetate fiber tow on the periphery. All the smoke flows into the outer filter layer of the coaxial filter section through the small holes in the overlapping grooves of the hollow filter section and the coaxial filter section. The flow rate and path are both changed. Finally, it flows through the filter section at the near-lip end and changes again. When the smoke flows through the three filter sections, turbulence is formed and it collides with the flowing substances. Tar and other particulate matters are significantly deposited near the small holes, and the deposition efficiency of the smoke is significantly improved, and the effect of reducing tar and harm is obvious.
Claims
1. A tar-reducing ternary composite filter cigarette, comprising a cigarette (1) and a filter, characterized in that: The filter tip comprises a hollow filter segment (2), a coaxial filter segment (3) and a solid filter segment (4); the hollow filter segment (2) is longitudinally provided with a circular cavity (5) penetrating through both ends at the axis center; the inner wall of the circular cavity (5) is evenly distributed with a plurality of longitudinally arranged grooves (6); the coaxial filter segment (3) is composed of a solid inner core (7) in the middle and an outer filter layer (8) wrapped around the inner core (7); the diameter of the inner core (7) is larger than the circular cavity (5) of the hollow filter segment (2) but smaller than the grooves (6) on the circular cavity (5); the hollow filter segment (2), the coaxial filter segment (3) and the solid filter segment (4) are arranged in sequence from the smoke-prone end to the lip-prone end.
2. The tar-reducing ternary composite filter cigarette according to claim 1, characterized in that: The number of grooves (6) of the hollow filter segment (2) is at least 3.
3. The tar-reducing ternary composite filter cigarette according to claim 1, characterized in that: The inner core (7) of the coaxial filter segment (3) is made of cellulose diacetate.
4. The tar-reducing ternary composite filter cigarette according to claim 1, characterized in that: The outer filter layer (8) of the coaxial filter segment (3) is composed of cellulose diacetate tow.
5. The tar-reducing ternary composite filter cigarette according to claim 1, characterized in that: The solid filter segment (4) is composed of cellulose diacetate tow.
6. The tar-reducing ternary composite filter cigarette according to claim 1, characterized in that: The inner core (7) of the coaxial filter section (3) has a diameter of 3.15 mm.
7. The tar-reducing ternary composite filter cigarette according to claim 1, characterized in that: The diameter of the circumscribed circle of the groove (6) on the hollow filter segment (2) is 4.55 mm.
8. The tar-reducing ternary composite filter cigarette according to any one of claims 1 to 7, characterized in that: The width of the groove (6) on the hollow filter segment (2) is 0.7 mm.