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Enzyme assisted coloring of cotton fabrics using reactive dyes

Parthiban Manickam, Thilagavathi Govindarajan

Cellulase (enzyme) mediated reactive dyeing of cotton fabric was carried out by hydrolyzing the chitosan (biopolymer) as an alternative method of eliminating the salt for exhaustion. The overall fastness rating is compared to the conventional reactive dyeing process & the spectral values (CIELAB) & K/S value were also found to be higher than normal reactive dyeing. Significant reduction in effluent load was found & the above technique can be used for improving the substantivity of cotton for reactive dyes & increasing the efficacy of dye-fibre interaction.