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Compatibility of reactive dyes in dyeing with binary and ternary mixture

In the present investigation an effort has been made to assess the compatibility of mixtures of reactive dyes in dyeing cotton. Cotton fabric was dyed individually and in binary and tertiary combination of reactive dyes covering different hues (yellow, red and blue) in equal proportions at 1.0% (o.w.f) depth of shade. The color data was measured in terms of K/S and CIELAB color coordinates L*, a*, b*, C* a b and h*. The compatibility of mixtures were assessed by constructing graphs of dL*vs dC* a b , dL* vs K/S, b* vs a* and h* vs time of dye fixation. The techniques based on the plots of h* vs time of dye fixation was found to be more useful and relevant for a practical dyer in determining the compatibility of the various dye mixtures.