Black disperse dye composition

Abstract

The invention provides a black disperse dye composition, which mainly comprises: one or more blue components A of which the structure is shown as a formula (I), one or more red components B of which the structure is shown as a formula (II), one or more yellow components C of which the structure is shown as a formula (III) and one or more green components D of which the structure is shown as a formula (IV). Based on the components A, components B, components C and components D, the mass fraction of the components A is 35-85%, the mass fraction of the components B is 1-25%, the mass fraction of the components C is 5-45% and the mass fraction of the components D is 1-35%. When the hydrophobic fiber material is dyed by using the dye prepared from the black disperse dye composition, black fabric with excellent color fastness especially excellent washing fastness after heat treatment can be obtained by adjusting the proportion of different components.

Description

(1) Technical field The invention relates to a black disperse dye composition, in particular to a high fastness black disperse dye composition suitable for dyeing and printing hydrophobic fiber materials. (2) Background technology Among disperse dyes, dark disperse dyes are the most widely used and used in the largest amount, especially blue and black dyes. However, if the above-mentioned varieties are composed of single-color components, they are often not as good in color fullness and fastness. Satisfactory, in this regard, the industry has introduced a variety of black disperse dyes that are compounded and blended. For the famous brand garment fabrics that are strict in all aspects, the dyes are required to have good heat migration resistance and color rendering performance, and the dark disperse dyes currently on the market , due to poor thermal migration resistance, the wet fastness after heat treatment will drop by 1-2 grades, especially the washing fastness and rubbin...

AI Technical Summary

Problems solved by technology

Among disperse dyes, dark disperse dyes are the most widely used and used in the largest amount, especially blue and black dyes. However, if the above-mentioned varieties are composed of single-color components, they are often not as good in color fullness and fastness. Satisfactory, in this regard, the industry has introduced a variety of black disperse dyes that are compounded and blended. For the famous brand garment fabrics that are strict in all aspects, the dyes are required to have good heat migration resistance and color rendering performance, and the dark disperse dyes currently on the market , due to poor thermal migration resistance, the wet fastness after heat treatment will drop by 1-2 grades, especially the washing fastness and rubbing fastness will drop significantly. Therefore, for fabrics with high dyeing performance requirements, conventional disperse dyes and blindly choosing alternative products often cannot effectively solve the problem

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