Wool Bleaching with Reducing Agents in the Presence of Sodium Lauryl Sulphate. Part 2 – Bleaching with Non-stabilised Hydrosulphite

Wool bleaching with non-stabilised hydrosulphite in the presence of sodium laurylsulphate (SLS) at a concentration of 5 g/l provides far better whites than when bleaching without this surfactant. In addition to better whiteness and lower yellowness index, wool bleached with SLS incorporated into the bath have a cysteine content some 20-30% lower