An antibacterial soybean protein fiber fabric and its dyeing and finishing process

Abstract

The invention relates to an antibacterial soybean protein fiber fabric and a dyeing and finishing process thereof. The dyeing and finishing process comprises the steps of bleaching, dyeing and after-finishing. The dyeing step comprises the steps of S1, pretreatment: placing soybean fibers in an aqueous solution containing 1-5 g / L of zein / N-2 hydroxypropyl trimethyl ammonium chloride chitosan composite particles at the temperature of 80-85 DEG C, carrying out oscillation treatment for 5-10 min, adding sodium bicarbonate, soaking for 1-10 min, taking the fibers out, washing with water to be neutral, and performing airing; and S2, dyeing: dyeing the modified soybean fibers with reactive dye. According to the antibacterial soybean protein fiber fabric and the dyeing and finishing process thereof, the soybean fibers are pretreated by using the zein / N-2 hydroxypropyl trimethyl ammonium chloride chitosan composite particles; and in the case of not adding inorganic salts for accelerating and low alkali concentration fixation, the dye and the color fixation rate of the fabric are still slightly higher than that of a traditional salt-adding dyeing process, and the dyed fabric shows better softness and glossiness.

Description

technical field [0001] The invention relates to the technical field of textiles, in particular to an antibacterial soybean protein fiber fabric and a dyeing and finishing process thereof. Background technique [0002] Soybean protein fiber is a kind of regenerated large white fiber prepared by wet spinning and acetalization reaction of a solution blended with soybean protein and polyvinyl alcohol in a certain proportion. Soybean protein fiber has the characteristics of fine monofilament fineness, light specific gravity, high elongation, soft luster, good moisture absorption and moisture conductivity, comfortable wearing, and soft hand feeling. However, during the dyeing process of soybean protein fiber, there are generally problems such as poor dyeing depth and level dyeing property, low color fastness, and easy to feel hard. [0003] To solve these problems, reactive dyes are used to dye soybean fiber, which can obtain higher fixation rate and fixation efficiency, but a la...

AI Technical Summary

Problems solved by technology

But there is no report that it is compounded with N-2 hydroxypropyltrimethylammonium chloride chitosan to form particles, and used as a cationic modifier to modify soybean fiber

[0005] N-2 hydroxypropyltrimethylammonium chloride chitosan has higher solubility than chitosan, and is positively charged and easy to adhere to the surface of biological mucosa. It is currently used as a drug controlled release carrier. At present, there is no report that it can be combined with corn protein to form granules, and used as a cationic modifier to cationic modify soybean fiber

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