Protein synthetic fiber and its production method

Abstract

The present invention discloses a protein synthetic fibre. It is formed from plant protein, animal protein and polyvinyl alcohol. The ratio of total weight of two proteins in fibre weight is: from 1% to less than 20% to from 20% to 40% of from greater than 40% to 99%, the rest is polyvinyl alcohol, and when the ratio of total weighto f two proteins in the fibre weight is from 20% to 40%, the ratio of one of them in the total weight of proteins is from 1% to 25% or from 75% to 99%. It also discloses the production method of said fibre. The fibre is good in breathable moisture permeability, and has the flexible and good dermophilic property of cashmere.

Description

technical field [0001] The invention belongs to textile materials, and in particular relates to synthetic fibers composed of vegetable protein, animal protein and polyvinyl alcohol, and also relates to a manufacturing method of the synthetic fibers. Background technique [0002] It is known that the fiber containing protein is except natural silk, and Japan has disclosed a kind of information of separating protein from milk to produce synthetic silk in the journal of fiber protein chemistry. This product expands the source of production fiber, in order to further expand the fiber Production, and on the basis of ensuring the good performance of fiber products, the inventor once disclosed a kind of synthetic fiber by plant protein and the manufacturing method of the fiber in the patent "99116636.1", and in the patent application document with the application number 02109966.9 Disclosed is a synthetic fiber having a different plant protein content than the prior application and...

AI Technical Summary

Problems solved by technology

[0003] In the application document with the patent application number 02101961.4, a method for producing protein synthetic fiber spinning dope is disclosed. In this application, the spinning dope contains plant protein and animal protein, which adds new raw materials to the resources for producing fibers. , but what is disclosed in this document is only a kind of spinning stock solution, which is an intermediate product in the production of fibers, and cannot be directly used by people, and although the solution contains two kinds of proteins and polyvinyl alcohol, However, due to the narrow range of the two protein ingredients, the natural resources for making fibers cannot be fully utilized. In addition, in this application, the ratio of vegetable protein to animal protein must be close, and in the process of making the spinning stock solution, the two These proteins and polyvinyl alcohol are dissolved separately to make a solution, and then they are blended, and a variety of additives need to be added, which not only adds trouble to the liquid preparation work, but also increases the cost. And detrimental to product quality, because the solution that is used to dissolve protein in this application is mainly sodium sulfite aqueous solution, so when adopting the spinning process of vinylon for this spinning solution, part protein loss will be in the coagulation bath, thus Fiber quality cannot be guaranteed