Abstract

Gaurav K. Rathod¹, Bhavesh M. Patel^1*, Ketan C. Parmar¹ and Divyesh R. Patel²

DOI : http://dx.doi.org/10.13005/ojc/390637

Bi-functional reactive dyes from the Cold brand that have exceptional dyeing capabilities. The intermediate for bi-functional cold-brand reactive dyes is 3, 3’-Disulpho-4, 4’-diamino diphenyl urea, which is synthesized through the interaction of one mole of urea aqueous solution with two moles of 1, 4-diaminobenzene-2-sulphonic acid. In this bi-functional reactive dye system, urea was utilized as a bridge molecule to give the reactive dyes significant water solubility. Incorporating various cyanurated coupling components, different colors are produced. It has good dyeing properties and provides a wide spectrum of shades on various fibres.

Bi-Functional; Cold Brand; Dyeing Properties; Exhaustion, Fixation; Reactive Dyes

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