Dispersed azo dye mixture

Abstract

The invention discloses a dispersed azo dye mixture, which contains a compound shown as at least one formula (1) and a compound shown as at least one formula (II), wherein substituent groups in the formulas are defined in the specification. The dispersed azo dye mixture can be used for dyeing by micronized liquid and dried powder and granules. When polyester fiber materials are subjected to printing and dyeing by the dye, dark black dyed fabrics which are gorgeous in color and luster, high in level-dyeing property and dispersibility, sunproof, washable, resistant to perspiration and the like can be obtained by adjusting ratios of different components.

Description

a technical field [0001] The invention relates to a disperse azo dye mixture and a preparation method thereof, belonging to the technical field of chemical material preparation. Two background technology [0002] Azo dyes (azo dyes, a class of organic compounds connected to aryl groups at both ends of the azo group) are the most widely used synthetic dyes in the printing and dyeing process of textiles and clothing, and are used for dyeing and printing of various natural and synthetic fibers. It is also used for the coloring of paint, plastic, rubber, etc. Azo dyes have the advantages of bright colors, excellent fastness, and a wide variety of colors. Among them, black azo disperse dyes are widely used, but single-component disperse black dyes often have disadvantages such as deep dyeing, insufficient lifting power, and poor fastness. Especially when used for fabric printing, it will cause serious staining on the white background. . [0003] There are U.S. Patent US6159249...

AI Technical Summary

Problems solved by technology

Among them, black azo disperse dyes are widely used, but single-component disperse black dyes often have disadvantages such as deep dyeing, insufficient lifting power, and poor fastness. Especially when used for fabric printing, it will cause serious staining on the white background.

[0003] There are U.S. Patent US6159249, Korean Patent KR0156834, KR95029349, KR2000060609, Taiwan Patent TW444047B, Chinese Patent CN100503740C, Chinese Patent CN1113941C and Chinese Patent CN1304490C etc. about the publicly reported method of performance improvement, wherein the technical scheme adopted is a group of azo dyes Compounding, the application performance of the obtained composite disperse black dye has been improved, but there is still the disadvantage of poor level dyeing

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