Novel oligomeric azo dye of thiourea-phenol resin

A series of novel oligomeric acid azo dyes were prepared by coupling various aromatic diazonium salts have been prepared and characterized the dyeing assessment of such dyes on various textile fibers reveals that excellent are achieved. During the dyeing assessment it was observed that the produced dye have powerful fixation properties. The dyes fixed on the fiber with almost negligible unused dye. Most of the dyes have high fixation on textile at less percentage of exhaustion. While using these dyes commercially it may affect the environmental saving by less percentage of dye effluents from textiles
Author(s): Bhavesh P. Dave1 and Purvesh J. Shah2

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