Potential of extended usage of pigmented wools after partial mordant bleaching and dyeing with acid dyestuffs

Pigmented wools (black, brown and gray) represents approximately 15-20% in total wool production of the world. But these pigmented wools are considered as second quality for the reason that they can't be bleached and dyed into desired colors. Consequently they are generally used in production of filling material, felt, carpet etc. The aim of this study is to supply new usage areas for pigmented wools via partially bleaching and dyeing. After performing these treatments, the fibers can be dyed into various colors, such as red, green etc. and, after homogenization of the color by dyeing in the presence of leveling agent, it is becoming possible to use them in their own colors