Cocoon fibre cigarette filter tip and producing method

Abstract

The present invention discloses one kind of cigarette filter tip with natural protein fiber silk as the main filter material, which is coated and high temperature and high humidity steam treated to get certain hardness, elasticity and moisture absorbing capacity. Test shows that the cigarette filter tip can block and filter out harmful cigarette smoke matter. The cigarette filter tip made of natural long protein fiber has no toxicity, no inhalation hazard, no environmental pollution, simple preparation process, low cost and wide market foreground.

Description

technical field [0001] The invention relates to a cigarette filter (rod) and a preparation method thereof, in particular to a cigarette filter characterized by using natural protein fiber silk as a raw material and a preparation method thereof. Background technique [0002] At present, the raw materials used to make cigarette filters in domestic and foreign markets are mainly cellulose diacetate, and there are also synthetic and natural materials such as polypropylene fiber and chitosan. Prepare the cigarette filter tip with cellulose diacetate, there are the obvious defects of the following aspects: (1) because the processed cellulose diacetate needs to use other materials such as some binders to have suitable hardness and elasticity, the filtering effect is affected. The effect of blocking and filtering harmful substances in the smoke produced during the smoking process of cigarettes is not very ideal; (2) the source of cellulose diacetate is limited. Most of them are cellu...

AI Technical Summary

Problems solved by technology

Prepare the cigarette filter tip with cellulose diacetate, there are the obvious defects of the following aspects: (1) because the processed cellulose diacetate needs to use other materials such as some binders to have suitable hardness and elasticity, the filtering effect is affected. The effect of blocking and filtering harmful substances in the smoke produced during the smoking process of cigarettes is not very ideal; (2) the source of cellulose diacetate is limited. Most of them are cellulose diacetate, which is in short supply. Every year, my country needs to import about 130,000 tons to satisfy the domestic market. Therefore, the price of cellulose diacetate is relatively high, about 50,000 yuan / ton; (3) Production of cellulose diacetate It is a relatively complicated chemical production process, which is easy to pollute the environment; (4) Manufacturing cigarette filters with polypropylene fibers needs to consume increasingly scarce petroleum resources, and it is difficult to degrade naturally after being discarded

However, silk fiber is relatively soft, and it is not suitable to be directly prepared into cigarette filters. Therefore, how to endow silk cigarette filters with a certain resistance to deformation is a major problem that needs to be solved.