Compound active black dye composition

Abstract

The invention provides a compound active black dye composition, mainly comprising one or more than one component A with a structure shown as a formula (I), one or more than one component B with a structure shown as a formula (II) and one or more than one component C with a structure shown as a formula (III) and / or a formula (IV), wherein on the basis of the component A, the component B and the component C, the percent by weight of the component A is 45-90%, the percent by weight of the component B is 1-30%, and the percent by weight of the component C is 5-40%. The compound active black dye composition provided by the invention has high dissolvability, good lifting performance, high alkali resistance, excellent wet-processing fastness and good drawing performance and is easy to wash when being used for textile printing and is a rare economical dark black dye.

Description

(1) Technical field [0001] The invention relates to a reactive dye composition, in particular to a reactive black dye composition with excellent lifting power, easy water washing and good pullability. (2) Background technology [0002] With the development and progress of society and the gradual improvement of people's living standards, the quality requirements for daily and household textiles are becoming increasingly strict. As important textile chemicals, dyes can be used for dyeing cotton, linen and their blended fabrics. Therefore, its Its own dyeing performance and ecological environmental protection performance requirements are also increasingly stringent. Blue and black are the most used colors. In the dyeing of deep and thick colors, there are often problems such as poor dyeing depth, poor wet fastness, and difficult cleaning of dyed fabrics. This is due to the high concentration of dyes used in deep-color dyeing, the amount of floating dyes increases, and the adso...

AI Technical Summary

Problems solved by technology

Blue and black are the most used colors. In the dyeing of deep and thick colors, there are often problems such as poor dyeing depth, poor wet fastness, and difficult cleaning of dyed fabrics.

This is due to the high concentration of dyes used in deep-color dyeing, the amount of floating dyes increases, and the adsorption of dyes to fibers has a saturation value. Generally, the concentration of dyes should not exceed 10% of the saturation value of dyeing. Excessive dyes cannot be dyed and fixed. It will accumulate on the surface of the fabric. If the ease of cleaning is not good, it will inevitably affect the wet fastness of the dyed fabric, resulting in poor dyeing performance

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