Auxiliary agent of formulation for dyeing Terylene

Abstract

This invention discloses an aid used in terylene dyeing characterizing in including the following components in weight percentage: acid aid 10-20%, organic phosphonic acid 2-5%, organic carboxylic acid 3-7%, naphthalenesulfonate 10-18%, PEG 400 single oleic acid ester 5-8%, non-ion PAA 0-2%, polytrimethylene polyethenoxy aether 0-3% and water.

Description

Technical field [0001] The invention relates to an auxiliary agent for dyeing, in particular to a one-part auxiliary agent for dyeing polyester, which is convenient to use and can impart dyeing benefits in the dyeing stage when dyeing polyester with disperse dyes. Background technique [0002] In recent years, China's textile dyeing and finishing industry has developed rapidly and has become the world's largest textile producer. Polyester textiles account for a large proportion of textile printing and dyeing products. However, a large number of polyester textiles are dyed with disperse dyes. After dyeing with disperse dyes, polyester textiles have excellent color fastness and leveling performance, complete chromatogram, and convenient use. Therefore, the development of disperse dyes has been extremely rapid in recent years, and the amount of use is increasing. Big. [0003] Among textile fibers, there are many fibers that can be dyed with disperse dyes, such as polyester, nylon, ...

AI Technical Summary

Problems solved by technology

[0005] (1) Inconvenient to use

During the dyeing process, the four auxiliaries must be diluted and added to the dyeing bath sequentially and gradually. One-time addition can easily cause dyeing defects, adding materials is quite troublesome, and increases the labor intensity of dyeing workers;

[0006] (2) The compatibility of the four kinds of auxiliaries is poor, and they cannot be mixed with the original solution. The high-temperature leveling agent and dispersant in the original solution are easy to be precipitated into flocs and become invalid. If the original solution is mixed and added, not only the dyeing purpose will not be achieved, On the contrary, it is easy to cause dyeing quality problems

[0007] (3) A large amount of additives is added, and the cost of wastewater treatment is high

The addition of the four additives reaches 5-10% of the weight of the fabric. After the dyeing task is completed, the additives all enter the wastewater, causing a large increase in the pollution of the wastewater, and the treatment cost of the wastewater is very high;

[0008] (4) acetic acid is volatile, so it is easy to cause unstable pH value, which is not conducive to ensuring the quality of dyeing and the pungent sour taste affects the health of laborers;

[0009] (5) In the process of adding materials, any quality problem of auxiliaries or inappropriate dosage will cause dyeing quality problems;

[0010] (6) It cannot prevent the precipitation of polyester oligomers during the dyeing process, and there is a problem of staining fabrics and equipment after the precipitation of polyester oligomers;

[0011] (7) Some polyester fabrics have problems such as fluffing and fine wrinkles caused by friction between fabrics and friction between fabrics and equipment during the dyeing process

[0013] Visible, the problem that existing this polyester dyeing method exists is very prominent

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