Compound active black dye

Abstract

The invention provides a composite reactive black dye, which is confected by (counted by weight quotient): dye shown by formula (1) of 50-80 quotient, dye shown by formula (2) of 15-40 quotient and dye shown by formula (3) of 5-10 quotient. Advantages of the dye are: level-dyeing property and fixation yield is high, quantity of the dye for dyeing fibrous material is small, and not fixed dye is easy to clean.

Description

technical field [0001] The invention relates to a black dye, in particular to a composite reactive black dye. Background technique [0002] Recently, the most widely used reactive black in the printing and dyeing industry, most of which are compounded by adding orange components to reactive C.I reactive black 5, its alkali resistance stability, washing fastness, and dyeing depth are not very satisfactory . Although the composite reactive black dye disclosed in the patent CN118976 has been greatly improved in terms of dye uptake, color fixation rate, and level dyeing property, the color yield depth, lifting rate, and compatibility between dyeings still need to be improved. Contents of the invention [0003] The object of the present invention is to provide a kind of compound reactive black dye, this dye can make dyed fabric have high level dyeing property, high fixation rate, has reached unprecedented jet-black fullness, when printing and dyeing fiber material, consumption...

AI Technical Summary

Problems solved by technology

Although the composite reactive black dye disclosed in the patent CN118976 has greatly improved the dyeing rate, color fixing rate, and level dyeing property, the color yield, lifting rate, and compatibility between dyeings still need to be improved.

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