A three-component composite filter cigarette for reducing tar and harm
By using a ternary composite filter structure, the flow and deposition of smoke are optimized, solving the problems of the spiciness of the first puff and the lack of aroma in the final stage of cigarette smoking, thus achieving a more stable smoking experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- MUDANJIANG CIGARETTE MATERIAL FACTORY
- Filing Date
- 2025-07-18
- Publication Date
- 2026-08-04
AI Technical Summary
Existing cigarettes have the problem of being too spicy on the first puff and lacking aroma in the later stages, and current improvement methods have not been able to completely solve this problem.
The filter adopts a ternary composite filter structure, including a grooved filter rod section, a hollow cavity section, and a variable diameter pore cavity filter rod section. By designing specific pore structures and material combinations, the flow and deposition process of flue gas are optimized to achieve the effect of reducing tar and harm.
While ensuring the reduction of tar and harm, it improves the smoking taste, reduces the spiciness of the first puff and increases the aroma in the final stage, thus enhancing the overall smoking experience.
Smart Images
Figure CN224584183U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cigarette technology, specifically to a tar-reducing and harm-reducing three-element composite filter cigarette composed of three filter rod segments: a grooved segment, a cavity segment, and a variable diameter segment. Background Technology
[0002] With increasing attention to health among modern people, the tar-reducing and harm-reducing functions of cigarettes are receiving more and more attention. While existing cigarette filters have generally seen significant improvements in tar reduction, the initial puff still tends to be harsh, and the aroma may become insufficient towards the end. Although some improvements have been made, such as adding flavorings and refining the filter structure, these issues cannot be completely resolved. Summary of the Invention
[0003] The technical problem to be solved by this utility model is to provide a tar-reducing and harm-reducing three-element composite filter cigarette that, while ensuring the tar-reducing and harm-reducing effect, maintains a high degree of stability in the smoking taste from beginning to end, and can minimize or eliminate the problem of strong spiciness in the first puff and insufficient aroma in the final stage of smoking.
[0004] The technical solution of this utility model is: a tar-reducing and harm-reducing three-element composite filter cigarette, including a front cigarette part and a rear filter part, as well as a wrapping layer wrapped around the outside. The filter part is composed of a grooved filter rod section near the cigarette end, a hollow section in the middle, and a variable diameter cavity filter rod section near the lip end. The outer periphery of the grooved filter rod section in contact with the wrapping layer has several longitudinal grooves that penetrate both ends. The variable diameter cavity filter rod section has a variable diameter cavity that penetrates both ends at the axial center. The diameter of the variable diameter cavity near the cigarette end is smaller than the diameter near the lip end. The grooved filter rod section and the variable diameter cavity filter rod section are separated to form a hollow section.
[0005] The technical advantages of this invention are: while ensuring tar reduction and harm reduction, it significantly improves the smoking experience, reducing or eliminating the initial harshness and insufficient aroma in the final puff. The grooved filter rod section allows smoke to settle within the pores, achieving tar reduction and harm reduction. The cavity filter rod section allows smoke to briefly reside in the cavity, buffering and condensing aroma through eddies. The variable-diameter cavity filter rod section is produced using dynamic thermoforming technology, allowing for variable inner diameters, increasing the complexity of smoke movement and facilitating the deposition of particulate components in the smoke. The organic combination of these three filter rod sections ensures smoking quality while effectively improving the initial harshness and insufficient aroma in the final puff of ordinary cigarettes. Attached Figure Description
[0006] Figure 1 This is a partial cross-sectional structural diagram of the present invention; Figure 2This is a schematic diagram of the cross-sectional structure of the grooved filter rod section of the filter element of this utility model. Detailed Implementation
[0007] like Figure 1 As shown in Figure 2, a tar-reducing and harm-reducing three-dimensional composite filter cigarette includes a front cigarette portion 1, a rear filter portion, and an outer wrapping layer 2. The filter portion consists of a grooved filter rod section 3 near the cigarette end, a hollow section 4 in the middle, and a variable-diameter cavity filter rod section 5 near the lip end. The outer periphery of the grooved filter rod section 3, which contacts the wrapping layer 2, has several longitudinal grooves 6 extending through both ends. A variable-diameter cavity 7 extending through both ends is provided at the axial center of the variable-diameter cavity filter rod section 5. The diameter of the variable-diameter cavity 7 near the cigarette end is smaller than the diameter near the lip end. The grooved filter rod section 3 and the variable-diameter cavity filter rod section 5 are spaced apart to form the hollow section 4. When the smoke passes through multiple small holes, the flow rate increases. Upon reaching the hollow section, the space expands, the smoke flow rate decreases, the volume expands, and smoke deposition becomes more pronounced, effectively reducing tar and harm and decreasing particulate matter in the smoke.
[0008] The grooved filter rod section 3 includes an inner filter layer 8 and an outer filter layer 9, with longitudinal grooves 6 located on the outer periphery of the outer filter layer 9. The inner and outer layers can be made of different materials to facilitate thermoforming of the shaft holes and grooves.
[0009] The inner filter layer 8 has a central hole 10 that extends through both ends. The flue gas converges in the cavity through the central hole and the outer peripheral groove, forming complex turbulence, which is most conducive to the sedimentation of particulate matter.
[0010] The cladding layer of the cavity segment 4 is made of a transparent material. The transparency enhances the visual effect.
[0011] The length of the grooved filter rod section 3 is 9-11 mm.
[0012] The length of the cavity section 4 is 4 to 6 mm.
[0013] The length of the variable diameter pore filter rod section 5 is 13-17 mm.
Claims
1. A tar-reducing and harm-reducing ternary composite filter cigarette, comprising a front cigarette portion (1) and a rear filter portion, and a wrapping layer (2) surrounding the cigarette, characterized in that, The filter tip consists of a grooved filter rod section (3) near the smoke end, a cavity section (4) in the middle, and a variable diameter cavity filter rod section (5) near the lip end. The grooved filter rod section (3) has several longitudinal grooves (6) that extend through both ends on its outer periphery in contact with the wrapping layer (2). A variable diameter cavity (7) that extends through both ends is provided at the axial center of the variable diameter cavity filter rod section (5). The diameter of the variable diameter cavity (7) near the smoke end is smaller than the diameter near the lip end. The grooved filter rod section (3) and the variable diameter cavity filter rod section (5) are separated to form a cavity section (4).
2. The tar-reducing and harm-reducing ternary composite filter cigarette as described in claim 1, characterized in that, The grooved filter rod section (3) includes an inner filter layer (8) and an outer filter layer (9), with longitudinal grooves (6) located on the outer periphery of the outer filter layer (9).
3. The tar-reducing and harm-reducing ternary composite filter cigarette as described in claim 2, characterized in that, The inner filter layer (8) has a central hole (10) at its center that passes through both ends.
4. The tar-reducing and harm-reducing ternary composite filter cigarette as described in claim 1, characterized in that, The cavity segment (4) is wrapped with a transparent material.
5. The tar-reducing and harm-reducing ternary composite filter cigarette as described in any one of claims 1 to 4, characterized in that, The length of the grooved filter rod section (3) is 9-11 mm.
6. The tar-reducing and harm-reducing ternary composite filter cigarette as described in any one of claims 1 to 4, characterized in that, The length of the cavity section (4) is 4 to 6 mm.
7. The tar-reducing and harm-reducing ternary composite filter cigarette as described in any one of claims 1 to 4, characterized in that, The length of the variable diameter pore filter rod section (5) is 13-17 mm.