Dyeing of Indian wool with reactive dyes

Wool fibres have been chemically modified by reduction / chlorination under acidic pH /pre-swelling in conc. formic acid prior to their dyeing with indigenous reactive dyes of different molecular configurations to enhancethe reactive dye uptake on wool fibre substrate. The pretreatment processes are inexpensive, less harmful and less time consuming as against the use of imported special wool reactive dyes.