Thiophene based monoazo disperse dyes for polyester fabric

Thiophene based monoazo disperse dyes for polyester fabric

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A series of monoazo disperse dyes have been prepared by coupling 2-amino-3-carbethoxy-4,5-dimethylthiophene lore olivera with various N-arylmaleimides.The monoazo disperse dyes were characterised by IR spectral studies and elemental analysis.These dyes were applied at 2 % depth on polyester fabrics and gave light yellow to brown colour hues with fair fastness to light and very good to excellent fastness to washing, rubbing, perspiration and sublimation.

The percentage exhaustion of the dyebath guest check pad holder and fixation on the fabric were found to be very good.