A Process for continuous dyeing of viscose yarn or blends thereof in rope form which coprises the steps of:- a) ball warping of yarn into rope formation. b) subjecting the rope to a plurality of steps of dyeing in an indigo dye liquor followed by oxidation after each step of dyeing. c) subjecting the dyed rope to...

The invention relates to a process for pretreatment of wool, silk or blends thereof rendering it receptive for the subsequent step or indigo dyeing. The pretreatment steps comprises in the step of cationization for imparting cationic charge and generating other dye combining sites.

This invention relates to a process for dyeing of leather with indigo dye comprising steps of: scouring, cationization and subjecting the cationized substrate to the step of dyeing with indigo dye. This invention also relates to a process for printing of leather and leather articles comprising steps of :printing tex...

This invention relates to a process for indigo dyeing of wool and wool blends comprising the steps of subjecting the wool and wool blends to a step of pretreatment by impregnation with a shrink resistance agent, subjecting the pretreated wool and wool blend yarns to the step of indigo dyeing and post dyeing, said st...