CN202536099U - Cigarette composite filter tip rod - Google Patents

Abstract

The utility model discloses a composite filter tip rod for cigarettes, which comprises an outer layer of forming paper. The outer layer of forming paper is sequentially provided with a cellulose acetate tow layer, an adsorbent filter layer, and a filter layer connected with the shredded tobacco section. Polypropylene fiber tow layer. The composite filter rod for cigarettes of the utility model has a reasonable design and a simple structure, and has a remarkable filtering effect on harmful components in the smoke, and can obviously reduce the content of tar and harmful substances in the smoke without affecting the suction resistance. And at the same time reduce the dependence on acetate tow.

Description

Composite filter rod for cigarettes

technical field

The utility model relates to a cigarette auxiliary material, in particular to a composite filter rod for cigarettes.

Background technique

In recent years, with people's understanding of some harmful components in cigarette smoke, the impact of smoking behavior on the health of smokers and the surrounding population has attracted increasing attention. The reduction of tar and harm of cigarettes has gradually become a key research topic in the tobacco industry.

Most of the current cigarette filter rods are made of a single ordinary cellulose acetate tow, which is not very effective in filtering harmful components in smoke. Therefore, it is necessary to develop a new type of filter rod to adapt to the development trend of low-tar cigarettes.

Contents of the invention

The purpose of the utility model is to overcome the deficiencies in the prior art and provide a composite filter rod for cigarettes.

In order to achieve the above purpose, the composite cigarette filter rod designed by the utility model includes an outer layer of forming paper, and the outer layer of forming paper is provided with three sections of inner layer filter rods, which are respectively cellulose acetate tow from the outside to the inside. Layer, absorbent filter layer and polypropylene fiber tow layer connected with the cut tobacco section.

Preferably, the peripheries of the acetate fiber tow layer and the polypropylene fiber tow layer are respectively wrapped with an inner layer of molding paper. Like this, the wrapping of tow layer is tighter, is difficult for loosening.

Preferably, a hollow part is provided in the suction end of the acetate tow layer. Due to the high resistance of the activated carbon particle layer, it is easy to increase the suction resistance and affect the taste. Therefore, a hollowed out part is added to the acetate tow layer 3 in contact with the mouth. Through the hollowed out part, negative pressure can be generated during the suction process to balance the mouthfeel. The suction resistance allows the smoke to enter the acetate tow layer faster.

The hollowed-out cellulose acetate tow layer is mainly to reduce the suction resistance of the adsorbent filter layer during the suction process. Activated carbon particles are preferred as the adsorbent. Through, these porous materials can effectively absorb the harmful components in the flue gas. The polypropylene fiber tow layer can save the usage of acetate fiber, reduce the cost, and alleviate the shortage of acetate fiber in tobacco companies.

The beneficial effect of the utility model lies in that: adopting the above scheme, the composite filter rod for cigarettes has reasonable design, simple structure, remarkable filtering effect on harmful components in the smoke, and can obviously reduce the smoke in the smoke without affecting the suction resistance. The content of tar and harmful substances is reduced, and at the same time, the dependence on acetate tow is reduced.

Description of drawings

Fig. 1 is a schematic cross-sectional structure diagram of a composite filter rod for cigarettes.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail.

The composite filter rod for cigarettes shown in Fig. 1 comprises an outer layer forming paper 1, and three sections of inner layer filter rods are arranged in the outer layer forming paper 1, which are respectively cellulose acetate tow layer 3, adsorbent filter layer 5 and a layer 6 of polypropylene fiber tows connected to the cut tobacco segments. The peripheries of the acetate fiber tow layer 3 and the polypropylene fiber tow layer 6 are respectively wrapped with inner layer molding paper 2 . A hollow part 4 is arranged in the suction end of the acetate fiber tow layer 3 .

When using the composite filter rod for cigarettes to suck cigarettes, the smoke will first enter the polypropylene fiber tow layer 6 for simple filtration, and then enter the adsorbent filter layer 5. When activated carbon particles are selected as the adsorbent, due to its developed With the microporous structure and large specific surface area, most of the harmful substances in the flue gas will be absorbed by it and trapped in the adsorbent filter layer 5, and the tar content in the flue gas will also be reduced. When the smoke enters the hollowed-out cellulose acetate tow layer 3, the hollow part 4 can generate negative pressure during the suction process, balance the suction resistance, and allow the smoke to enter the cellulose acetate tow layer 3 faster; and the smoke in the The tar and harmful substances will be further absorbed by the cellulose acetate, and finally the smoke with low tar and low harmful substances will enter the human mouth.

Claims (3)

1. a cigarette is used composite filter tip; Comprise outer forming paper (1); It is characterized in that: be provided with three sections internal layer filter rods in the said outer forming paper (1), the polypropylene fibre tow layer (6) that is respectively acetate silk layer (3), absorbent filtering layer (5) from outside to inside and links to each other with the pipe tobacco section.

2. use composite filter tip according to the said cigarette of claim 1, it is characterized in that: the periphery of said acetate silk layer (3) and polypropylene fibre tow layer (6) is enclosed with internal layer forming paper (2) respectively.

3. said cigarette according to claim 1 and 2 is used composite filter tip, it is characterized in that: be provided with openwork part (4) in the aspiration end of said acetate silk layer (3).

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