AZO DISPERSE DYE, THE METHOD OF THE SAME AND THE DYEING PROCESS

摘要

The present invention relates to azo dispersant of the following general formula (I), a preparation method thereof and a dyeing method.; … (Ⅰ);Wherein X ₁ , X ₂ are each independently hydrogen, methyl, ethyl, nitro, cyano, chlorine, bromine, methoxy or ethoxy group,;R ₁ , R ₂ are each independently methyl, ethyl, cyanoethyl, acetoxyethyl, aryl or benzoyloxyethyl,;R ₃ is hydrogen, methyl, methoxy or ethoxy group,;R ₄ is hydrogen, methyl or acetamido group.;Unlike the conventional disperse dyes, the dye of the present invention does not contain a dispersant, and thus, it is possible to reduce the amount of waste water and dust by economical benefits such as time and energy savings by omitting the dispersing work process during product production, thereby minimizing environmental pollution. Can be. It is also possible to dye polyester, acetate, cotton, rayon fibers and blend fibers such as polyester-acetate, polyester-cotton, polyester-spandex, polyester-rayon and the like.