METHOD FOR PRODUCING FUR INTERMEDIATE PRODUCT Russian patent published in 1998 - IPC

FIELD: light industry. SUBSTANCE: method includes processes of pickling, washing and degreasing of fur intermediate product carried out with hydrolyzed polyacrylonitrile in the amount of 1-2 g/l. Operations of pickling, tannage and dubbing are conducted with mixture of acetic and sulfuric acids with concentration of 5-6 and 4-5 g/l, respectively, chrome tannin in the amount of 10-20 g/l, sodium chloride 30-50 g/l, fat 8-10 g/l by smearing. Fur intermediate product is dried in drying chamber. EFFECT: higher efficiency. 1 tbl