Dyeing and finishing process of acetate fiber interwoven fabric and dyeing agent thereof

Abstract

The invention discloses a vinegar ester fiber interwoven fabric dyeing and finishing process and a dyeing agent thereof. A purpose of the present invention is mainly to solve the problems of poor color fastness and poor strength after the dyeing of vinegar ester fibers in the prior art. According to the present invention, the vinegar ester fiber interwoven fabric dyeing and finishing process mainly comprises pretreatment, dyeing, post-finishing, drying, heat shaping and other steps, such that vinegar ester fibers are easily subjected to dyeing and finishing, and the dyed and finished vinegar ester fiber interwoven fabric has advantages of excellent breaking strength, bright color, comfortable wearing, close fitting and no restraint feeling; and vinegar ester fibers have the same unique properties as silk, and have advantages of bright luster, bright color, excellent draping and excellent hand feeling, and the knitted fabric produced from the vinegar ester fibers has advantages of smooth hand feeling, comfortable wearing, moisture absorption, gas permeation, light texture, low moisture regain, pilling resistance, and static electricity resistance.

Description

technical field [0001] The invention relates to the field of fabric dyeing and finishing, in particular to a dyeing and finishing process for acetate fibers and a dyeing agent thereof. Background technique [0002] Acetate fiber is also called acetate fiber. It is an environmentally friendly chemical fiber spun by dry spinning process after acetylation of cellulose fiber. It has similar characteristics to viscose and polyester fiber. Acetate fiber has the characteristics of good drapability, comfortable wearing and moisture absorption. Its amorphous open-cell structure can expel moisture from the body, so as to achieve more comfortable and cool wearing. As a substitute for silk, many fabric printing and dyeing factories have studied its processing methods. The knitted fabric of acetate fiber has soft texture, moisture absorption and breathability, excellent elasticity and extensibility and its producibility. [0003] Generally, cellulose triacetate is made from refined cot...

AI Technical Summary

Problems solved by technology

[0005] The best dyeing temperature of disperse dyes is around 130°C, while the suitable dyeing temperature of acetate fiber is 70-90°C, if the temperature is too high, the fabric will shrink and affect the hand feeling

When the dyeing agent dyes the interwoven fabric of acetate fiber and real silk at a temperature of 70-90°C, the dyed disperse dyes are easy to fall off, resulting in a large number of white spots on the cloth surface, resulting in defects, and reducing the fabric's quality. Breaking strength, resulting in insufficient strength of the obtained acetate interwoven fabric

At the same time, when the acetate fiber is pretreated, the structure of the acetate fiber is damaged due to the use of strong acid or strong alkali in the prior art.

[0006] It is the above reasons that cause the difficulties in the dyeing and finishing of acetate fiber interwoven fabrics.

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