METHOD FOR LIGHT-, BIORESISTANT AND WATER-RESISTANT FINISHING OF CLOTHES CONTAINING LAX AND/OR COTTON FIBER Russian patent published in 1994 - IPC

FIELD: textile industry. SUBSTANCE: flax- and cotton-containing cloth is treated within 1.0-1.5 min by aqueous solution of poly(meth)acrylic acid or by its sodium or potassium slat and by calcined soda. The process is carried out at 80-85 C and it is followed by drying till humidity content is 20-30% . Then impregnation at 60-85 C within 1.0-1.5 min by aqueous solution of copper sulfate takes place. The process is followed by sustaining in wet condition at room temperature within 15-30 min and by washing. Then processing at 95-100 C within 1.0-1.5 min by aqueous solution of sodium sulfate and drying till humidity content is 20-30% are carried out. Then processing at 75-80 C by soap-paraffin elusion (its concentration being 75-80 g/l as calculated for dry substance, alkalinity is 0.6-0.8 g/l as calculated for NaOH) within 1.0-1.5 min and drying till humidity content is 20-30% take places. The process is followed by impregnation at room temperature by aqueous solution of aluminium or zirconium acetate. Then drying till humidity content is 6% takes place. EFFECT: increases strength of desired product. 1 tbl