Plant tow filter fiber and preparation method thereof

Abstract

The invention relates to a plant tow filter fiber and a preparation method thereof. The invention aims at solving the problems that plant filter fibers for the existing cigarette filter have relatively great axial line ventilation resistance, can not reach the ventilation performance of a chemical fiber filter and affect promotion and application. The key points of the technical scheme are as follows: the filter fiber is characterized in that the fiber tow is formed by crude stuff, is 0.01 mm to 0.1 mm in diameter and contains solid bamboo pole stuff accounting for 11 percent to 15 percent bymass, solid straw stuff accounting for 38 percent to 42 percent by mass, solid devil rush herb stuff accounting for 40 percent to 45 percent and solid wooden pole stuff accounting for 3 percent to 6 percent. The preparation method is characterized by soaking raw materials after being grounded in water for more than 3 days, putting the raw materials in high-pressure steaming and boiling equipment for steaming and boiling for more than 2 hours, grinding the raw materials into stuff by a staff grinder after the raw materials are taken out, adjusting the concentration of the stuff to be 56 percentto 70 percent of all stuffs in respect of mass and finally utilizing spinning holes of a spinning machine of 0.01 mm to 0.1 mm to conduct extrusion and tow drawing to the stuff so as to obtain fibertows and producing the fiber tows bundled into filter fiber rods.

Description

technical field [0001] The invention relates to raw materials for cigarette filters, in particular to plant tow filter fibers for filters and a manufacturing method thereof. 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-negligib...

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the defects that existing plant filter fibers used in cigarette filters have relatively large axial air resistance, cannot achieve the air permeability of chemical fiber filters, and affect their popularization and application, the purpose of the present invention is to provide an improved plant tow filter Fiber and its preparation method can overcome the defects of the prior art