Abstract
Present study deals with synthesis and optical characterizations of several yellow, orange and brown mono azo disperses dyes having built-in UV-absorber stabilizer. Disperse azo dyes have been prepared by the coupling of diazo salts solutions of different aromatic amines with 4-hydroxybenzophenone, 2, 4-dihydroxybenzophenone and 2-hydroxy-4-methoxy benzophenone. Synthesized dyes were well characterized by 1H NMR, 13C NMR, FTIR, Mass spectroscopy and elemental analysis. Dyeing assessments of all the dyes were evaluated on polyester and nylon fibers. Evaluation of UV-protection factor (UPF) of the dyed fabrics suggested that these dyes can be used to make UV-protective fabric. Sustainability of the dyed UV-protective textile substrate tartan using customized based on AATCC 186 method. Dyed fabrics showed very good light fastness and good to excellent washing, rubbing and perspiration fastness. DFT (density functional theory) is carried out to find electrophilicity index of prepared dyes.
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