CELLULOSE FIBER IMPARTED WITH SHRINK RESISTANCE AND ITS PRODUCTION

摘要

PURPOSE:To obtain a fiber having durable shrink resistance and free from generation of formalin by immersing a cellulose fiber in a treating liquid containing a specific polycarboxylic acid and a silicon compound and heat- treating the impregnated fiber. CONSTITUTION:A textile material composed of cellulose fiber is immersed in a treating emulsion liquid containing a polycarboxylic acid (especially butanetetracarboxylic acid) and a silicon compound having at least one aliphatic hydroxyl group and/or amino group in the molecule (preferably polyether- modified silicone, etc.) and adjusted to pH 2-5. The impregnated textile material is squeezed, dried and heat-treated to obtain the objective cellulose fiber imparted with shrink resistance durable to washing and free from the problems of the deterioration of fiber and the generation of formalin.