Filtering fibre for the cigarette filter tip and the method for making the same

Abstract

A filtering fiber and manufacturing method of the cigarette filter eliminates the problem in the prior art using herbage plant as the raw material that the integration of the fiber-filtering technology is not ideal and either the air permeability or the filtration capacity is too bad. The key point of the technical proposal is as follows. The filtering fiber is characterized in that the filtering fiber is fibrous bundles with a diameter of 0.01-0.1 mm, wherein the fibrous bundles are made by the blended fiber, comprising 18 to 22 percent by mass of bamboo, 48 to 52 percent by mass of straw, 18 to 22 percent by mass of stalk and 8 to 12 percent by mass of awn stick. The manufacturing method has characteristics that the materials are the herbage plants which are immerged in water for more than one day, boiled in the water of 100 DEG C for more than 2 hours and pressed by the pressing machine into pieces with the thickness of more than 0.1 mm. And the pieces are made into fibrous bundles with a diameter of 0.01-0.1 mm and then after being got rid of the odor, sterilized and dried, the fiber tows are made into filtering fiber.

Description

technical field [0001] The present invention relates to the raw material of cigarette filter tip, especially filter fiber for filter tip and its manufacturing method. Background technique [0002] The filter fiber that the cigarette filter tip that generally uses at present is used, generally adopts chemical fiber such as acetate fiber, propionate fiber. Due to the excellent filtration performance and air permeability of this type of fiber, it can effectively reduce the harmful components of smoke, reduce the volatilization of smoke, reduce carbon monoxide, and reduce the pressure drop of cigarettes. It has long been the best choice for filter fibers for cigarette filters, and it is difficult to Substitute with other materials. However, chemical fibers such as cellulose acetate and cellulose propionate are not only relatively expensive in the market, but also difficult to degrade in the natural environment, and the filter on the cigarette butt will cause non-negligible poll...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the defects such as the filter fiber used for the cigarette filter tip and the manufacturing method thereof existing with herbal plants as raw materials, the comprehensive technical performance of the filter fiber is not ideal, either the air permeability is too poor or the filter performance is too poor, the purpose of the present invention is to provide An improved filter fiber for cigarette filter tip and its manufacturing method, which can overcome the defects of the prior art