Acetate fabric dyeing carrier and preparation method thereof

Abstract

The invention provides an acetate fabric dyeing carrier and a preparation method thereof. The preparation method includes the steps that 10-20% of 1,2-propylene glycol monophenyl ether, 30-40% of N-cyclohexyl pyrrolidone, 0-10% of N-n-pyrrolidone, 0-10% of N-butyl phthalimide, 10-20% of castor oil polyoxyethylene ether EL40 and 5-10% of benzyl alcohol are sequentially added into a clean anhydrousreaction kettle; and stirring is carried out for 20-50 minutes, and uniformly mixing is carried out to obtain the acetate fabric dyeing carrier which is in a transparent liquid state. In the dyeing process, the dyeing temperature of acetate fibers can be reduced to 85 DEG C, the color depth is 60-80%, the strength is basically not reduced, an acetate fabric is not prone to wrinkling, and the colordepth of the acetate fabric is very deep. Compared with the prior art, the acetate fabric dyeing carrier is a novel environment-friendly carrier which is low in toxicity, odorless, good in dyeing promotion effect, easy to clean and free of irritation to skin.

Description

technical field [0001] The invention relates to the technical field of acetate fiber fabrics, in particular to an acetate fabric dyeing carrier and a preparation method thereof. Background technique [0002] Because there are few polar groups (-OH, -OOH, etc.) in the macromolecular structure of acetate fiber, it cannot be dyed with cotton dyes such as direct dyes and reactive dyes. Its dyeing characteristics are similar to synthetic fibers, and disperse dyes can be used to dye. When dyeing with disperse dyes, the acetate fiber absorbs the dye from the dye solution through the intermolecular attraction. As the temperature of the dye solution increases, the dye enters the cavity on the fiber surface and gradually diffuses into the amorphous macromolecules of the fiber as time goes on. In the zone, the hydrogen atom on the disperse dye and the oxygen atom of the acetyl group (-OCOCH3) in the fiber are bonded together through hydrogen bonds, but the firmness of this combination...

AI Technical Summary

Problems solved by technology

When dyeing with disperse dyes, the acetate fiber absorbs the dye from the dye solution through the intermolecular attraction. As the temperature of the dye solution increases, the dye enters the cavity on the fiber surface and gradually diffuses into the amorphous macromolecules of the fiber as time goes on. In the zone, the hydrogen atom on the disperse dye and the oxygen atom of the acetyl group (-OCOCH3) in the fiber are bonded together through hydrogen bonds, but the firmness of this combination is not very ideal, and it is easy to wash under strong soaping conditions. fade

At the same time, if the temperature is too high, the fiber will be hydrolyzed, the strength will decrease, the gloss will be adversely affected, and the phenomenon of extinction will occur.

[0003] At present, there is no specific dyeing carrier product for acetate fiber fabrics on the market, and printing and dyeing enterprises all use polyester carrier instead. Polyester dyeing carrier has certain toxicity and smells very bad Large, seriously affecting the physical and mental health of operators, it is difficult to clean from the fabric

Therefore, a special carrier for environmentally friendly acetate fiber fabrics with low toxicity, odorless, good dyeing effect, and no skin irritation has been prepared, and low-temperature dyeing of acetate fabrics will not affect the physical and mechanical properties of acetate fibers, and The color is very deep, which solves the problems of easy hydrolysis, wrinkling and dimensional instability of acetate fabrics under high temperature, and obtains high-quality dyed fabrics, providing an effective solution for dyeing acetate fabrics that are not resistant to high temperatures

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