Wool Bleaching with Reducers in the Presence of Sodium Laurylsulphate. Part 4 – Treatments to Remove the Surfactant Absorbed by Wool

Treatments applied to remove the sodium laurylsulphate from wool bleached with thiourea dioxide in the presence of this surfactant cause a slight decrease of wool whiteness. However, whiteness remains for better than that of wool bleached without such a surfactant