Deep blue disperse dye capable of being used for direct printing of polyester fiber

Abstract

The invention relates to a deep blue disperse dye capable of being used for the direct printing of polyester fiber. The dye comprises the following components by weight percent: 30-80% of monomeric dye A, 1-20% of monomeric dye B, 10-50% of monomeric dye C, 1-10% of monomeric dye D and the balance additives. The dye of the invention can be used in the directly printed pure polyester fabrics or the blend fabrics thereof; the disperse dye has low sensitivity to the changes of the direct printing technological parameters and also has little color difference under different light sources, good printing leveling property, high dye yield, good reproducibility, excellent stability and optimal fastness properties; and the chemical oxygen demand (COD) emission value of the dye wastewater and the environmental pollution can be reduced.

Description

technical field [0001] The invention relates to a dark blue disperse dye, in particular to a high fastness dark blue disperse dye (disperse dark blue P-G) which can be used for direct printing of polyester fibers. Background technique [0002] In recent years, with the development of high-performance printing machines, the maturity of printing technology, the invention of differentiated fibers, and the unique plumpness and layered nature of direct printing products, polyester fiber direct printing products have become more and more popular. It is increasingly becoming a high value-added product. [0003] However, there are some problems in the disperse dyes for direct printing of polyester fibers on the market, such as too large color difference under various light sources, and insufficient light fastness, washing, sublimation and perspiration fastness of dyes. Therefore, the market urgently needs to be used for polyester fibers. High fastness disperse dye products for dire...

AI Technical Summary

Problems solved by technology

[0003] However, there are some problems in the disperse dyes for direct printing of polyester fibers on the market, such as too large color difference under various light sources, and insufficient light fastness, washing, sublimation and perspiration fastness of dyes. Therefore, the market urgently needs to be used for polyester fibers. High fastness disperse dye products for direct printing to meet increasing customer requirements

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