Filter tip containing degradable PLA (polylactic acid) tows

Abstract

The utility model relates to the technical field of filter tips, in particular to a filter tip containing degradable PLA tows, which comprises a cigarette rod, the rear end of the cigarette rod is fixedly connected with rolled paper, and the outer side of the rolled paper is sleeved with a protection mechanism; reinforcing binding bands are fixedly connected to the front side and the rear side of the interior of the rolled paper, a plurality of PLA outer skin layers which are evenly distributed are fixedly connected to the inner sides of the reinforcing binding bands, and inner core layers are arranged at the centers of the interiors of the PLA outer skin layers. The protection mechanism is arranged on the outer side of the rolled paper in a sleeving mode, so that bacteria cannot be indirectly infected when smokers deliver cigarettes mutually, and potential safety hazards are reduced.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of filter tips, in particular to a filter tip containing degradable PLA tow. Background Art

[0002] The filter is a filter device on cigarettes that reduces smoke, tar, and suspended particles produced during combustion. The main functions of cigarette filters include direct interception, inertial compression, and diffusion precipitation.

[0003] Utility model patent publication number CN210797066U discloses a PLA composite fiber filament and a filter tip containing the same. The PLA composite fiber filament has a core-sheath structure, specifically comprising an inner core layer and a PLA outer sheath wrapped around the inner core layer, with an airflow channel between the inner core layer and the outer sheath. The inner core layer is a continuous filament made of a biodegradable material, while the PLA outer sheath is primarily composed of PLA, which refers to polylactic acid. The PLA composite fiber filament is not only flexible and resistant to breaking and degumming, but is also completely biodegradable, contributing to environmental protection. Filter tips made with the PLA composite fiber filament exhibit low draw resistance, uniform smoke flow, good cooling effect, and moderate strength.

[0004] However, the above filter tip still has the following disadvantages when used:

[0005] 1. The outside of the filter tip is not protected. When smokers meet, they will pass a cigarette to their friend out of courtesy. During the process of passing the cigarette, the hand of the person passing the cigarette will directly grasp the filter tip. At this time, the bacteria remaining on the hand can easily be contaminated on the filter tip, leading to bacterial transmission and posing a major safety hazard.

[0006] 2. Several PLA outer layers are combined with rolling paper to form a filter tip, but there is no filling layer between the PLA outer layers. As a result, when smokers smoke, the filtering quality of harmful substances inside the cigarette is reduced, causing harm to the smoker's body. Utility Model Content

[0007] The utility model provides a filter tip containing degradable PLA tow, which is used to solve the technical problems raised in the above background technology.

[0008] The technical solution adopted by the utility model to solve the above technical problems is:

[0009] A filter tip containing degradable PLA tow comprises a cigarette rod, wherein a rolling paper is fixedly connected to the rear end of the cigarette rod, and a protective mechanism is provided on the outside of the rolling paper; reinforcing bands are fixedly connected to the front and rear sides of the inside of the rolling paper, and a plurality of evenly distributed PLA outer skin layers are fixedly connected to the inner sides of the reinforcing bands; an inner core layer is provided at the center of the inner part of the PLA outer skin layer.

[0010] Preferably, the protective mechanism includes a PLA protective cover fitted on the outside of the rolled paper, an adhesive layer is provided at the front end of the PLA protective cover, an adhesive layer is fixedly connected to the inside of the adhesive layer, and a tear strip is provided between the adhesive layer and the PLA protective cover.

[0011] Preferably, the front end of the PLA protective cover is bonded to the outer side of the rolled paper through the adhesive layer, and the other parts of the PLA protective cover are slidably connected to the outer side of the rolled paper.

[0012] Preferably, the thickness of the PLA protective cover is 0.05-0.3 mm.

[0013] Preferably, an air passage is provided between the PLA outer skin layer and the inner core layer, and the inner core layer is composed of a plurality of PLA fiber filaments arranged in parallel or in a rope-like structure.

[0014] Preferably, a filling layer is further provided on the outside of each PLA outer skin layer, and the filling layer is composed of PLA fiber filaments.

[0015] Preferably, the thickness of the PLA outer layer is 0.05-0.3 mm.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. The utility model provides a protective mechanism in which a PLA protective cover is sheathed on the outside of the rolled paper. When a smoker passes a cigarette, the smoker's fingers will only pinch the outside of the PLA protective cover. At this time, the bacteria on the smoker's hands will only adhere to the outside of the PLA protective cover. After the cigarette is received, the cigarette receiver only needs to tear off the strip and then remove the PLA protective cover, so that bacteria will not be indirectly transmitted. When the filter tip containing the degradable PLA tow is used, the spread of bacteria can be avoided, reducing safety hazards.

[0018] 2. The utility model uses a reinforcing band and a filling layer in combination. By adding a filling layer in the gaps between several inner core layers, there is no gap inside the filter except for the air passage. At the same time, the reinforcing band can firmly fix the several inner core layers and the filling layer together, thereby improving the overall strength. When the filter containing the degradable PLA tow is used, the filtering quality of harmful substances is improved, thereby reducing the harm caused by cigarettes to the smoker's body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the present application, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of a filter tip in a specific embodiment of the present invention;

[0021] Figure 2 for Figure 1 Schematic diagram of the three-dimensional structure of the middle protection mechanism;

[0022] Figure 3 for Figure 1 Schematic diagram of the cross-sectional structure of the papermaking machine;

[0023] Figure 4 for Figure 1 Schematic diagram of the cross-sectional structure of the inner core layer.

[0024] In the figure: 1. Cigarette rod; 101. Rolling paper; 102. Reinforcement strap; 103. Filling layer; 2. PLA outer layer; 201. Air passage; 202. Inner core layer; 3. Protective mechanism; 301. PLA protective cover; 302. Tear strip; 303. Adhesive layer; 304. Adhesive layer. DETAILED DESCRIPTION

[0025] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0026] Please refer to Figures 1-4 , Figure 1 This is a schematic diagram of the three-dimensional structure of a filter tip in a specific embodiment of the present invention; Figure 2 for Figure 1 Schematic diagram of the three-dimensional structure of the middle protection mechanism; Figure 3 for Figure 1 Schematic diagram of the cross-sectional structure of the papermaking machine; Figure 4 for Figure 1 Schematic diagram of the cross-sectional structure of the inner core layer.

[0027] The utility model provides a filter tip containing degradable PLA tow, comprising a cigarette rod 1, a rolling paper 101 fixedly connected to the rear end of the cigarette rod 1, a protective mechanism 3 provided on the outside of the rolling paper 101, and reinforcing bands 102 fixedly connected to the front and rear sides of the inside of the rolling paper 101. Several evenly distributed PLA outer skin layers 2 are fixedly connected to the inner sides of the reinforcing bands 102, and an inner core layer 202 is provided at the center of the inner part of the PLA outer skin layer 2.

[0028] The protective mechanism 3 comprises a PLA protective sleeve 301 that fits snugly over the outside of the paper roll 101. An adhesive layer 303 is provided at the front end of the PLA protective sleeve 301, with an adhesive layer 304 fixedly attached to the inside of the adhesive layer 303. A tear strip 302 is provided between the adhesive layer 303 and the PLA protective sleeve 301. The thickness of the PLA protective sleeve 301 can range from 0.05 to 0.3 mm. The front end of the PLA protective sleeve 301 is bonded to the outside of the paper roll 101 via the adhesive layer 303 and the adhesive layer 304, while the rest of the PLA protective sleeve 301 is in sliding contact with the outside of the paper roll 101.

[0029] By sheathing the PLA protective cover 301 on the outside of the rolling paper 101, when a smoker passes a cigarette, the smoker's fingers will only pinch the outside of the PLA protective cover 301. At this time, the bacteria on the smoker's hands will only adhere to the outside of the PLA protective cover 301. After the cigarette is received, the cigarette receiver only needs to tear off the tear strip 302 and then remove the PLA protective cover 301. This prevents bacteria from being indirectly transmitted, avoids bacterial transmission, and reduces safety hazards.

[0030] An air passage 201 is provided between the PLA outer skin layer 2 and the inner core layer 202. The inner core layer 202 is composed of a plurality of PLA fiber filaments arranged in parallel or in a rope-like structure. The thickness of the PLA outer skin layer 2 can be 0.05-0.3 mm. Furthermore, a filling layer 103 is provided between the outer gaps of the PLA outer skin layer 2. This filling layer 103 is also composed of PLA fiber filaments. The PLA is polylactic acid, which is biodegradable and safe and environmentally friendly.

[0031] By adding a filling layer 103 in the gaps between the plurality of inner core layers 202, there will be no gaps inside the filter except for the air passage 201. At the same time, the reinforcing strap 102 can firmly fix the plurality of inner core layers 202 and the filling layer 103 together, thereby improving the overall strength, improving the quality of filtering harmful substances, and reducing the harm caused by cigarettes to the smoker's body.

[0032] The specific operation mode of the utility model is as follows:

[0033] First, by sheathing the PLA protective cover 301 on the outside of the cigarette wrapping paper 101, when a smoker passes a cigarette, the smoker's fingers will only pinch the outside of the PLA protective cover 301. At this time, bacteria on the smoker's hands will only adhere to the outside of the PLA protective cover 301. After receiving the cigarette, the smoker only needs to tear off the tear strip 302 and then remove the PLA protective cover 301. This can prevent the spread of bacteria when using the filter tip containing biodegradable PLA tow, reducing safety risks.

[0034] In addition, by adding a filling layer 103 in the gaps between several inner core layers 202, there will be no gaps inside the filter except for the air passage 201. At the same time, the reinforcing strap 102 can firmly fix the several inner core layers 202 and the filling layer 103 together, thereby improving the overall strength, improving the quality of filtering harmful substances, and reducing the harm caused by cigarettes to the smoker's body.

[0035] The above description of the present invention is illustrative in combination with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as such non-substantial improvements are made by adopting the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the scope of protection of the present invention.

Claims

1. A filter tip containing degradable PLA tow, comprising a cigarette rod (1), characterized in that: The rear end of the cigarette stick (1) is fixedly connected to a rolling paper (101), and a protective mechanism (3) is provided on the outside of the rolling paper (101); the front and rear sides of the interior of the rolling paper (101) are fixedly connected to reinforcing straps (102), and the inner sides of the reinforcing straps (102) are fixedly connected to a plurality of evenly distributed PLA outer skin layers (2), and an inner core layer (202) is provided at the center of the interior of the PLA outer skin layer (2).

2. The filter tip containing degradable PLA tow according to claim 1, characterized in that: The protective mechanism (3) comprises a PLA protective sleeve (301) fitted onto the outside of the rolled paper (101), an adhesive layer (303) being provided at the front end of the PLA protective sleeve (301), an adhesive layer (304) being fixedly connected to the inside of the adhesive layer (303), and a tear strip (302) being provided between the adhesive layer (303) and the PLA protective sleeve (301).

3. The filter tip containing degradable PLA tow according to claim 2, characterized in that: The front end of the PLA protective sleeve (301) is bonded to the outer side of the rolling paper (101) via the adhesive layer (304), and the other parts of the PLA protective sleeve (301) are slidably connected to the outer side of the rolling paper (101).

4. The filter tip containing degradable PLA tow according to claim 2, characterized in that: The thickness of the PLA protective cover (301) is 0.05-0.3 mm.

5. The filter tip containing degradable PLA tow according to claim 1, characterized in that: An air passage (201) is provided between the PLA outer skin layer (2) and the inner core layer (202), and the inner core layer (202) is composed of a plurality of PLA fiber filaments arranged in parallel or in a rope-like structure.

6. The filter tip containing degradable PLA tow according to claim 1, characterized in that: A filling layer (103) is further provided on the outside of each PLA outer skin layer (2), and the filling layer (103) is composed of PLA fiber filaments.

7. The filter tip containing biodegradable PLA tow according to claim 1, characterized in that: The thickness of the PLA outer skin layer (2) is 0.05-0.3 mm.

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