Primary application of the water soluble polyurethane (wpu) to protein fabrics

摘要

The primary application of the water soluble polyurethane (WPU) in protein fabrics was inves- tigated. Both WCRA (wet crease recovery angle) and DCRA (dry crease recovery angle) of silk fabrics finished with WPU were increased, and the other properties were only slightly influenced. As a formaldehyde - free silk finishing agent, WPU was proved to have a great future. The felting shrinkage ratio of wool fabrics treated by only WPU was reduced to 12.51/00 from 36.7/100.