Chinlon 6 short fiber having cool feeling and preparation method thereof

Abstract

The invention relates to a chinlon 6 short fiber having cool feeling and a preparation method thereof. The method includes: spinning chinlon 6 chips, having cool feeling, to manufacture chinlon 6 short fiber having cool feeling; wherein the chinlon 6 having cool feeling is prepared through a cool feeling functional powder surface chain growth reaction, a ring opening pre-polycondensation reactionand a finish polycondensation reaction successively from a mixture; the mixture is composed mainly of the cool feeling functional powder coated with a catalyst, a phase-change material, caprolactam and water; the cool feeling functional powder surface chain growth reaction is that caprolactam, enriched on the surface of the cool feeling functional powder, is polymerized under effect of a catalystto form a linear molecular chain. The Qmax of the chinlon 6 short fiber having cool feeling is 0.15-0.35 W / cm<2>; after contact with human body, the time of reaching balance is 30-40 s. The preparation method is less in side reactions and has high reaction rate and efficiency. The chinlon 6 short fiber can durably hold a cooling feeling even at a high temperature and is high in promotion value.

Description

technical field [0001] The invention belongs to the field of nylon preparation, and relates to cool-feeling nylon 6 staple fiber and a preparation method thereof. Background technique [0002] Nylon fiber refers to a polymer whose main chain contains polar amide groups (-CONH-). Nylon can be obtained by ring-opening polymerization of caprolactam, or by polycondensation of diamine and dibasic acid. Among them, nylon fiber mainly refers to Nylon 6 (PA6) is a kind of polymer with excellent performance and wide application. [0003] Along with the diversified demand for clothing fiber products, people are paying more and more attention to the development of new nylon differentiated fiber materials. New nylon differentiated fiber materials include new nylon prepared from new monomers and co-nylon esters that are copolymerized and modified from existing nylon. Through differential modification, researchers have differentially applied some properties that people need daily, such ...

AI Technical Summary

Problems solved by technology

However, the cool fiber experience that has been developed so far is still insufficient, and there are still some problems in the preparation of cool fiber, which are mainly reflected in the following aspects: 1) the problem that the coolness of the touch is not long; At the beginning of textile use, because the temperature was not high at that time, it did feel cool to the touch, but as the use time increased and the temperature rose sharply, the cool feeling of the product disappeared; 2) The problem of poor air permeability; Having a cool feeling does not mean that the fiber itself has good breathability and moisture absorption and perspiration effects. To make the fiber feel really cool, not only must the material be extremely cool, but it must also meet the actual needs of the human body for heat dissipation in summer; 3) In order to pursue coolness, researchers need to modify fiber products, which will more or less affect other properties of fibers, such as mechanics, electrical conductivity or UV resistance, etc.