Bamboo charcoal profiled fiber and preparation method thereof

Abstract

The invention discloses bamboo charcoal profiled fiber with good product quality and low production cost, and a preparation method thereof. The fiber comprises the following components in percentage by weight: 94-99 percent of melt-spun slices, 1-6 percent of bamboo charcoal fine particles, 0.05-0.5 percent of surfactant and 0.1-1 percent of antioxidant, wherein the melt-spun slices are polyester, polyamide, polypropylene, polyethylene and modified polymers of polyester, polyamide, polypropylene and polyethylene; and the bamboo charcoal fine particles are black bamboo charcoal or white bamboo charcoal with the particle sizes of less than 2 mum. The preparation method comprises the following steps of: (1) preparing the bamboo charcoal fine particles according to a certain proportion, adding the surfactant and the antioxidant into a double-screw machine in a mixed conveying way, and directly putting the dried melt-spun slices into the hybrid double-screw machine; (2) melting and extruding the melt-spun slices in the double-screw machine, uniformly mixing the melt-spun slices with the bamboo charcoal fine particles and an aid, and conveying the mixture into a spinning box for direct spinning, by means of connection of a flange bent pipe; (3) spinning a blend melt with a spinning component from a spinneret plate, cooling, blowing and winding to obtain bamboo charcoal profiled nascent fibers; and (4) performing stretching twice and heat setting according to a continuous yarn or short yarn post-processing procedure. The invention is suitable for the bamboo charcoal profiled fiber and preparation thereof.

Description

technical field [0001] The invention relates to a chemical fiber and a preparation method thereof, in particular to a special-shaped fiber suitable for bamboo charcoal and a preparation method thereof. Background technique [0002] With the improvement of people's quality of life, the demand for textiles is also changing. People not only seek warmth, but also pursue comfort and health in clothing. Advocating the combination of external image beauty and internal health care function has become a hot spot in clothing consumption. Under this trend, various healthy functional fibers emerge as the times require. Bamboo charcoal fiber has super adsorption capacity and health care properties such as deodorization, antibacterial and anti-mildew, far-infrared emission and negative ion emission, and its fabric is very popular. [0003] The existing technology of spinning bamboo charcoal fiber and fabric thereof has following three methods: (1) as Chinese patent application number 2...

AI Technical Summary

Problems solved by technology

[0003] The existing technology of spinning bamboo charcoal fiber and fabric thereof has following three methods: (1) as Chinese patent application number 200410037683.4, bamboo charcoal is coated on the fiber surface by finishing process; the bamboo charcoal fiber that this method produces is in use process It is easy to cause the shedding of bamboo charcoal particles, which will affect its effective function

(2) Chinese patent CN1293243C, application numbers 200810033788.0, 200710015036.7, 200710013948.0 and 200510102775.0, bamboo charcoal particles are dispersed in spinning slurry by traditional wet spinning process to prepare bamboo charcoal viscose fiber, solvent spinning cellulose fiber or acrylic fiber; This method of producing bamboo charcoal fiber will cause the bamboo charcoal powder to fall off during the solidification process of the fiber, thereby reducing the effective content of the bamboo charcoal powder in the final fiber and affecting the effective performance of its function.

This two-time processing method not only increases energy consumption, but also causes re-agglomeration of bamboo charcoal particles, and the agglomerated bamboo charcoal particles are enriched on the filter screen, which leads to an increase in spinning pressure, speeds up the frequency of replacing components, and reduces the quality of finished fibers. The effective content of bamboo charcoal weakens the health function of bamboo charcoal fiber

[0004] In addition, the bamboo charcoal fibers currently used in the market are all circular cross-section fibers, with small specific surface area and high packing density. The prepared fabric feels stiff and cannot fully exert the effective function of nano-bamboo charcoal.