Regenerated animal micropowder protein cellulose fiber and preparation method thereof

Abstract

The invention discloses a regenerated animal micropowder protein cellulose fiber and a preparation method thereof. The preparation method comprises the following steps of: adding nanoscale animal micropowder protein into a dispersant solution, stirring the mixture uniformly, filtering to obtain 20 to 35 weight percent of animal micropowder protein liquid; preparing viscose by using cellulose pulp as a raw material, adding denaturant in the dissolution step to obtain modified viscose; adding the animal micropowder protein liquid into the modified viscose in a weight ratio of animal micropowder to the finished fiber of (1-30):100, uniformly stirring to obtain animal micropowder compounding viscose; and defoaming and filtering, spinning molding by introducing a coagulating bath, and then drawing filament and performing aftertreatment to obtain the animal micropowder protein viscose fiber. The fabric made of the regenerated animal micropowder protein cellulose fiber is low in density, and is light; the hygroscopicity, the air permeability and the thermal insulating property of the fabric are further improved; the fiber textile processing and wearability are good; and the production process is pollution-free.

Description

technical field [0001] The invention relates to the technical field of modified cellulose, in particular to a regenerated animal micropowder protein cellulose fiber and a preparation process thereof. Background technique [0002] Protein fibers are divided into two categories: natural protein fibers (such as wool, silk, etc.) and regenerated protein fibers. According to the source of raw materials, regenerated protein fibers can be divided into regenerated animal protein fibers and regenerated plant protein fibers. Regenerated animal protein fiber mainly refers to fiber spun from milk, feathers, wool, pig hair, etc., and regenerated plant protein fiber mainly refers to fiber spun from corn, soybean, peanut, rapeseed, etc. [0003] Foreign countries began to research on regenerated protein fiber from the end of the 19th century and the beginning of the 20th century. Italian scientists in 1935, British ICI Company in 1938, and Corn Product Refining Company in 1939 discussed ...

AI Technical Summary

Problems solved by technology

In the early 1940s, the United States developed casein fiber; in 1945, the United States and Britain studied soybean protein fiber; in 1948, General Motors of the United States extracted soybean protein fiber from soybean meal, but most of them could not be processed because of poor fiber performance. Textile processing while interrupting research

[0007] Based on the production technology of protein fibers disclosed at home and abroad, no matter it is viscose fiber or other wet-spun synthetic fibers, it basically adopts the lye treatment of first dissolving animal or vegetable protein to obtain protein, and then Adding it to the traditional fiber production process for wet spinning, on the one hand, the original cavity structure of the protein fiber is completely destroyed after the protein is dissolved; on the other hand, in order to solidify the protein liquid, aldehydes must be used to shrink Formaldehyde or use of heavy metal chromium salts for denaturation and curing not only affects the quality of protein fibers, but also such toxic substances will cause serious environmental pollution