Azo dye compound with high washing fastness, preparation method and application

Abstract

The invention belongs to the technical field of textile dyes, and particularly relates to an azo dye compound with high washing fastness, a preparation method and application. The structure of the azo dye compound is shown in the following formula (1). The azo dye compound is used as a disperse dye to be applied to dyeing and printing of polyester / polyamide fiber fabrics, and corresponding colored light from orange to blue (specifically including yellow, orange, red, purple and blue) is obtained. The azo dye compound disclosed by the invention not only has the advantages of keeping bright color of disperse red 343 (very close to disperse red 60), high dyeing fixation rate and environment-friendly production process, but also is a disperse dye with very excellent washing fastness.

Description

technical field [0001] The invention belongs to the technical field of textile dyes, and in particular relates to an azo dye compound with high washing fastness, a preparation method and an application. Background technique [0002] Among the red varieties of disperse dyes, Disperse Red 60 has the greatest influence: bright shade (bright blue light red), good level dyeing and light fastness, it is very popular among users and has a large market consumption. However, Disperse Red 60 itself has some serious defects at the same time: low lifting power, not suitable for dyeing dark colors; poor sublimation fastness; 14346mol -1 cm -1 ); the biggest problem is: Disperse Red 60 belongs to anthraquinone dyes. In the manufacturing process, the discharge of "three wastes" is huge, the concentration of toxic and harmful substances is very high, and it is very difficult to control. Therefore, since the 1980s, the western Dyestuff companies in developed countries, Japan and South Kor...

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Problems solved by technology

However, Disperse Red 60 itself has some serious defects at the same time: low lifting power, not suitable for dyeing dark colors; poor sublimation fastness; 14346mol -1 cm -1 ); the biggest problem is: Disperse Red 60 belongs to anthraquinone dyes. In the manufacturing process, the discharge of "three wastes" is huge, the concentration of toxic and harmful substances is very high, and it is very difficult to control. Therefore, since the 1980s, the western Dyestuff companies in developed countries, Japan and South Korea have stopped the production of such dyes one after another

However, the washing fastness of Disperse Red 343 is poor, which is an important flaw

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