A kind of rapid dyeing method of polyester textile

Abstract

The invention provides a rapid dyeing method for polyester textiles. First, the polyester textiles are washed and dried in a surfactant washing solution to obtain pretreated polyester textiles; then, a disperse dye solution is prepared, a dispersant is added, and the pretreated polyester textiles are put in, followed by Disperse and dry to obtain pretreated polyester textiles; then, put the pretreated polyester textiles into a high boiling point solvent at a predetermined temperature for dyeing to obtain dyed polyester textiles; finally, wash and dry, Complete dyeing of polyester textiles. This method forms an oily "liquid film" on the surface of polyester textiles. Driven by the high-energy oily "liquid film", the disperse dyes quickly enter the polyester textiles. Compared with the traditional polyester dyeing method, the effect of disperse dyes on polyester is significantly improved. Excellent dyeing performance, and the oil bath can be reused, which saves dyeing costs and has the advantages of economical and environmental protection.

Description

A kind of fast dyeing method of polyester textile technical field [0001] The present invention relates to the field of textile printing and dyeing, in particular to a rapid dyeing method for polyester textiles. Background technique Polyester fiber, commonly known as "polyester", is obtained by spinning the polyester obtained by polycondensation of organic dibasic acid and dihydric alcohol. Synthetic fibers, belonging to polymer compounds, are currently the largest variety of synthetic fibers. Polyester has many excellent textile properties It can be used in a wide range of applications and can be made of pure textiles, and can also be mixed with natural fibers such as cotton, wool, silk, hemp and other chemical fibers. Blended and interwoven to make wool-like, cotton-like, silk-like, Imitation linen fabric. The biggest advantage of polyester fiber is good wrinkle resistance and shape retention, strong and durable, with high strength and elasticity Resilience. [...

AI Technical Summary

Problems solved by technology

[0013] However, the shortcoming of the hot-melt method is that after dyeing polyester with disperse dyes, there will be a certain thermal migration phenomenon, which will cause the sublimation of disperse dyes to the air, affect the utilization rate of dyes, and fail to achieve the ideal color fastness.

At the same time, due to the method of heating the air during the dyeing process, the low specific heat, strong fluidity and difficult handling of the air make it difficult for the fiber surface to be heated evenly, and the heating speed is slow, which easily causes uneven dyeing.

The raw materials used are complicated, the color brightness and fabric feel are not good, the utilization rate of dyestuffs is also relatively low, and the discharge of residual dyeing liquor will cause certain pollution to the environment

The disadvantage of the high temperature and high pressure method is that it must be done under high temperature and high pressure conditions, the requirements for dyeing equipment are extremely high, the dyeing time is long, and the discharge of residual dye liquor will pollute the environment.

The disadvantage of the carrier method is that the raw materials used in the dyeing process are complicated, and the carrier is easy to cause the dispersion stability of the dye solution to decrease in polyester dyeing.