Dyeing method of protein fiber yarn

Abstract

The invention provides a dyeing method of protein fiber yarns. The dyeing method comprises the following steps that fresh bryophyllum pinnatum leaves are adopted as a raw material to prepare powder through drying, the powder is added into deionized water, and extracting is conduced to obtain a basic dyeing solution; the protein fiber yarn is washed with a mixed solution of hydrogen peroxide and sodium silicate, then bleaching liquid treatment and ozone treatment are performed, maltose partial grafting treatment, catechol oxidase catalytic oxidation treatment, 1-aminopropyl-3-methylimidazolium tetrafluoroborate dipping treatment and drying are performed in sequence, and pre-treated protein fiber yarn is obtained; and finally, the pretreated protein fiber yarn is added into the basic dyeing solution, dyeing and post-treatment are conducted, and then the dyeing method of the protein fiber yarn can be achieved. Natural plant components are used for dyeing protein fiber yarns such as wool fibers, soybean protein fiber yarns and casein fiber yarns and the like, and the method is green, environmentally friendly and good in dyeing effect.

Description

technical field [0001] The invention relates to the technical field of dyeing processing, in particular to a dyeing method of protein fiber yarn. Background technique [0002] Protein fiber is a category of man-made fibers, which refers to fibers that can be used in the textile industry produced from proteins extracted from natural substances such as soybeans, milk, peanuts, and corn. Since the 1990s, there has been a new generation of protein fiber, casein protein, produced by extracting casein from milk. As an emerging innovation in traditional industries, protein fibers are gradually coming into the public's sight, and the dyeing of protein fibers has become a new focus. The fuel used for dyeing protein fiber products is mainly chemical fuel, and there are many environmental protection problems in the process of preparation and use. Therefore, a method for environmentally friendly dyeing of protein fiber products using green dyes, specifically plant extract dyes, is an ...

AI Technical Summary

Problems solved by technology

However, the dyeing effect of plant extracts is often uncontrollable, the dyeing effect is poor, the color fastness is poor, and it is easy to fade

[0004] Patent application CN107100017A discloses a method of using natural plants to dye grass green on protein fibers, directly collecting the stems and leaves of the aboveground part of fresh ghost needle grass and crushing them, extracting the juice with a decoction machine, and then directly dyeing the protein fibers with mordant dyeing. Then use slaked lime for post-mordant dyeing, and post-treatment can achieve dyeing, but the dyeing effect is poor, the color fastness is poor, and the color is relatively simple

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