抽象的な
Coumarin Based Monoazo Disperse Dyes and their Dyeing Application on Polyester Fiber
G. M. Malik, S. K. Zadafiya and Anant B. Desai
Various azo disperse dyes (Da-Do) of the type 3-{[4-(2-amino-4, 5-dihydro-1, 3-thiazol-4-yl) phenoxy] acetyl}-2H-chromen-2-one were synthesized by using 3-acetylcoumarin, thiourea and p-hydroxy acetophenone by diazotization and coupling with various substituted aminobenzene derivatives. Dyeing properties of these dyes on polyester fiber were assessed. These dyes were characterized by elemental analysis and IR spectra.
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