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A kind of colorant-free printing method of soybean protein fiber

A technology of soybean protein fiber and printing method, which is applied in the field of dyeing and finishing, and achieves the effect of broad application prospects and simple and feasible process

Active Publication Date: 2020-04-03
HENAN INST OF ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to aim at the shortcomings of the wastewater containing a large amount of dyes in the process of washing with colorants such as acidic and reactive dyes in the printing process of soybean protein fiber fabrics. Selective irradiation and bleaching agent synergistically destroy the pigment, and obtain a new bleaching method in which the soybean protein fiber itself is yellow as the background color, and the part irradiated by ultraviolet light is white, realizing the dyeing and finishing process of direct printing of unbleached soybean protein fiber without colorant

Method used

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  • A kind of colorant-free printing method of soybean protein fiber

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A kind of soybean protein fiber colorant-free printing method, its process is as follows:

[0018] Pad the soybean protein fiber fabric with a bleach solution made up of 15 g / L hydrogen peroxide, 3 g / L sodium silicate, and 2 g / L sodium carbonate, then dry it at 80°C for 8 minutes, and then use a 300W The unshielded soybean protein fiber fabric is irradiated with ultraviolet light for 20 minutes, and finally washed and dried to obtain a printed product.

Embodiment 2

[0020] A kind of soybean protein fiber colorant-free printing method, its process is as follows:

[0021] Soybean protein fiber fabrics were padded with 30 g / L hydrogen peroxide, 1 g / L sodium silicate, and 4 g / L potassium carbonate to prepare a bleaching solution, then dried at 60°C for 10 minutes, and then 800W ultraviolet Light is irradiated on the unshielded soybean protein fiber fabric for 10 minutes, and finally the printed product is obtained after washing and drying.

Embodiment 3

[0023] A kind of soybean protein fiber colorant-free printing method, its process is as follows:

[0024] Soybean protein fiber fabrics are padded with 3g / L sodium percarbonate, 5g / L trisodium phosphate, and 1g / L sodium hydroxide to prepare a bleaching solution, then dried at 60°C for 20min, and then treated with 1000W ultraviolet light. Light is irradiated on the unshielded soybean protein fiber fabric for 2 minutes, and finally the printed product is obtained after washing and drying.

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Abstract

The invention discloses a colorant-free printing method for soybean protein fiber. Unbleached soybean protein fiber fabric is padded in a bleacher solution, drying, selective ultraviolet light irradiation, water washing and drying are performed, printed fabric with the yellow color of the soybean protein fiber as the base color and with a white ultraviolet light irradiation part is obtained, and heat produced in the ultraviolet light irradiation process promotes the bleacher and ultraviolet light to cooperate to damage isoflavone and other pigments of the soybean protein fiber, so that the ultraviolet light irradiation part is white. With the adoption of the method, printing processing of the soybean protein fiber fabric is realized without colorants such as dye, coatings and the like, thestrength index of the printed soybean protein fiber fabric meets the requirement, the printed soybean protein fiber fabric is obtained with the method, and reference is provided for green dyeing andfinishing processing of the soybean protein fiber fabric.

Description

technical field [0001] The invention belongs to the technical field of dyeing and finishing, and in particular relates to a colorant-free printing method for soybean protein fibers. Background technique [0002] Soybean protein fiber is generally made of regenerated soybean protein and polyvinyl alcohol by blending and spinning. It is a regenerated protein fiber with good hygroscopicity, hand feeling and air permeability. It is the preferred fabric for personal clothing. However, the whiteness of soybean protein fiber itself is very low, and it needs to be bleached before dyeing or printing, and it is difficult to improve the whiteness of bleaching, especially when dyeing or printing light colors, bright colors, fluorescent colors and other colors, it often needs to be processed many times on the fabric. bleach. [0003] At present, the printing of soybean protein fiber fabrics is still carried out with conventional fabric colorant printing methods, and the method of using ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06L4/13D06L4/12D06L4/30D06L4/50
CPCD06L4/12D06L4/13D06L4/30D06L4/50
Inventor 曹机良孟春丽李晓春许志忠陆辉陈艺佳郭金爱黄鸿宇
Owner HENAN INST OF ENG