Characterization and Preparation of Cool Wool by Sodium Hypochlorite

Abstract

Preparing of cool wool from coarse wool fiber is a feasible and effective method. The preparation principle, process and properties of cool wool fiber was studied during chlorination treatment with sodium hypochlorite. The optimum chlorination treatment process was as follows: concentration of sodium hypochlorite at 4g/L, concentration of sulphuric acid at 20g/L, time 15min, temperature 20°C to 25°C, ratio of water and wool fiber was 50:1. Compared with original wool fiber,the surface of cool wool only retained scales roots and the cuticle becomes thinner. Handle, softness, whiteness, luster and the anti-shrinkage properties were improved, the breaking strength is decreased about 5% to 8%.