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 particularly relates to synthetic fibers composed of plant protein, animal protein and polyvinyl alcohol, and also relates to a manufacturing method of such synthetic fibers. Background technique [0002] In addition to the known protein-containing fiber, in addition to natural silk, Japan has published information on the production of synthetic silk by separating protein from milk in the publication of fiber protein chemistry. This product expands the source of fiber production, 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 synthetic fiber made of plant protein and a method for manufacturing the fiber in the patent "99116636.1", and in the patent application document with application number 02109966.9 Disclosed is a synthetic fiber with a different plant protein content from the previous application and its m...

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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