METHOD FOR IMPARTING DURABLE SOIL-RESISTANT FINISH TO POLYAMIDE AND POLYESTER FABRICS AND THE TREATED FABRICS

摘要

A method of imparting a durable soil-resistant finish to synthetic fabrics selected from the group consisting of polyamide and polyester fabrics comprising padding the fabrics in a treating bath containing 2-10 percent by weight of a polymer hydrosol selected from the group consisting of polymethacrylic acid, polyvinyl alcohol and carboxymethyl cellulose in the form of colloidal dispersion, 0.1-4.0 percent by weight of precondensate resin of a member selected from the group consisting of cyclic ethylene-urea and melamine-formaldehyde resins, and acidic catalyst for these resins, squeezing the treated fabrics with a mangle at a pickup of 40-100 percent, drying the squeezed fabrics at 80 DEG -110 DEG C. and subjecting the fabrics to a high-temperature treatment at 140 DEG -170 DEG C. for 30-40 seconds; washing the resultant fabrics with an aqueous solution containing a detergent maintained at above 40 DEG C., drying and finishing.