Hollow cigarette filter tip capable of intercepting flow and reducing tar
By designing a hollow cigarette filter with a composite filter element, the structure and through-hole distribution of the inner and outer filter parts are used, the problem of degradation of the filter function after use of the hollow filter rod is solved, and better coking and damage reduction and suction resistance adjustment are achieved.
Patent Information
- Application Number
- CN202421504761.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-28
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-06-28
AI Technical Summary
After using hollow filter rods, the filtering function of the existing hollow cigarette filter is greatly reduced, and the effect of reducing coke and harm is not good.
A hollow cigarette filter is designed including a formed paper layer and a composite filter element. The composite filter element includes an inner filter part and an outer filter part. The inner filter part is a cylinder body, and there are through holes distributed on the cylinder wall. The outer filter part is wrapped around the outer filter part, and the hollow filter rod section is located at a position not near the lip end of the filter element.
It has achieved good adjustment and absorption resistance and better coking and harm reduction effects. Through air flow velocity control and microporous structure, a large amount of harmful substances are effectively intercepted.
Smart Images
Figure CN223008436U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cigarettes, and particularly relates to a hollow cigarette filter tip capable of intercepting and reducing tar. Background Art
[0002] A cigarette filter tip is an important part of a cigarette and can filter the smoke. The cigarette filter tip can filter out most of the tar in the cigarette and reduce the intake of harmful substances such as tar by smokers. At present, in order to improve the smoking experience of cigarettes, more and more functional filter rods have been applied. Among them, the hollow filter rod is also one of the most widely used. The existing hollow filter rod only plays a role in adjusting the draw resistance in the cigarette filter tip, enabling smokers to obtain a smoother smoking experience. However, the use of the hollow filter rod also significantly reduces the filtering function of the cigarette filter tip, affecting the role of the filter tip in reducing tar and harmful substances. Therefore, it is necessary to develop a hollow cigarette filter tip that can simultaneously intercept a large amount of tar to protect the health of consumers. Summary of the Invention
[0003] The technical problem to be solved by the utility model is to provide a variable-hole hollow filter tip with good tar reduction effect that can intercept and reduce tar.
[0004] The technical solution of the utility model is: a hollow cigarette filter tip capable of intercepting and reducing tar, including a forming paper layer and a composite filter element including a hollow filter rod section. The hollow filter rod section includes an inner filter part and an outer filter part. The inner filter part is a cylindrical body with one end open and the other end sealed, and through holes for passing smoke are distributed on the cylinder wall. The open end of the inner filter part faces the near-lip end. The outer filter part wraps around the outer periphery of the inner filter part, and the hollow filter rod section is arranged at a position of the filter element that is not near the lip end.
[0005] The technical effect of the utility model is: it has a good effect of adjusting the draw resistance and a better effect of reducing tar and harmful substances. Using air specific flow filtration, controlling the air flow velocity to reduce the tar content. The air velocity will increase when passing through the micropores and decrease when passing through the cavity in the cigarette filter tip. The filter material at the outlet also has a microporous structure. The smoke will stay briefly in the cavity, and tar will have a higher probability of adhering to the inner wall of the cavity. The soot in the smoke will also be more likely to land in the cavity during deceleration and form a mixture with the tar. In this way, a large amount of harmful substances will be intercepted in the cavity. Brief Description of the Drawings
[0006] Figure 1 It is a schematic structural diagram of the utility model. Detailed Description of the Invention
[0007] Such as Figure 1As shown, a hollow cigarette filter tip capable of intercepting flow and reducing tar includes a forming paper layer 1 and a composite filter element containing a hollow filter rod section 2. The forming paper layer is wrapped around the periphery of the composite filter element. The hollow filter rod section 2 includes an inner filter part 3 and an outer filter part 4. The inner filter part 3 is a cylindrical body with one end open and the other end sealed. Through holes 5 for passing smoke are distributed on the cylinder wall. The open end of the inner filter part 3 faces the near-lip end. The outer filter part 4 is wrapped around the periphery of the inner filter part 3. The hollow filter rod section 2 is arranged at a position of the filter element that is not near the lip end. The hollow filter rod section can be arranged at the near-smoke end or in the middle. The density of the outer filter part can be appropriately reduced to facilitate smoother smoke flow. The size of the through holes should be as small as possible to achieve the micro-hole speed regulation effect of accelerating the flow of local smoke.
[0008] The density of the material used for the outer filter part 4 is lower than that of other filter rod sections. This can make the smoke flow more smoothly in the annular space of the outer filter part without affecting the function of the hollow filter rod section in adjusting the suction resistance.
[0009] There is at least one row of through holes 5 on the cylinder wall of the hollow filter rod section 2, and the through holes 5 are distributed in a ring around the cylinder wall. The size of a single row of through holes can be appropriately adjusted to meet the principle of smooth smoke flow.
[0010] The through holes 5 are arranged at the middle position. The middle position is more conducive to the cavity deposition effect.
[0011] At least one section of cellulose diacetate tow section 6 is provided at the rear of the filter element with respect to the hollow filter rod section 2, that is, near the lip end.
[0012] At least one section of functional filter rod section 7 is provided in front of the filter element with respect to the hollow filter rod section 2, that is, near the smoke end.
Claims
1. A hollow cigarette filter capable of intercepting and reducing tar, comprising a forming paper layer (1) and a composite filter element containing a hollow filter rod segment (2), characterized in that: The hollow filter rod segment (2) comprises an inner filter portion (3) and an outer filter portion (4); the inner filter portion (3) is a cylindrical body with one end open and the other end sealed; through holes (5) through which smoke can pass are distributed on the wall of the cylinder; the open end of the inner filter portion (3) faces the proximal lip end; the outer filter portion (4) is wrapped around the periphery of the inner filter portion (3); and the hollow filter rod segment (2) is arranged at a position of the filter element that is not proximal to the lip end.
2. The hollow cigarette filter capable of intercepting and reducing tar according to claim 1, characterized in that: The density of the material used for the outer filter portion (4) is lower than that of other filter rod segments.
3. The hollow cigarette filter capable of intercepting and reducing tar according to claim 1, characterized in that: The through holes (5) on the cylinder wall of the hollow filter rod segment (2) are at least in one row, and the through holes (5) are distributed in a ring shape around the cylinder wall.
4. The hollow cigarette filter capable of intercepting and reducing tar according to claim 3, characterized in that: The through hole (5) is arranged at a middle position.
5. The hollow cigarette filter capable of intercepting and reducing tar according to claim 1, characterized in that: The filter element is provided with at least one diacetate fiber bundle segment (6) behind the hollow filter rod segment (2).
6. The hollow cigarette filter capable of intercepting and reducing tar according to any one of claims 1 to 5, characterized in that: The filter element is provided with at least one functional filter rod segment (7) in front of the hollow filter rod segment (2).