Abstract
A series of phenylazo-β-naphthol-containing sulfonamide disperse dyes were applied to poly (lactic acid) fabric by exhaust dyeing. Their dye exhaustion, color strength and color fastness on poly (lactic acid) fabric were assessed. It was found that sulfonamide dyes, especially tertiary sulfonamide dyes, exhibited superior dye exhaustion, color strength and color fastness to washing and sublimation on poly (lactic acid) fabric in comparison to C.I. Solvent Yellow 14 bearing the same chromophore but without sulfonamide moiety.
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