Cross-Linking of Partially Cyanoethylated Cotton

Abstract

By 0 1-0.5% hydrochloric acid scouring, which has been shown to prevent the discoloration of the amidoximates of partially cyanoethylated cotton fabrics in the previous paper, it was found that the amidoximate hydrochloride salt might be formed. In comparison with unscoured amidoximates, the scoured matertal, even when formaldehydecured under noncatalyzed neutral conditions, with or without tension, had exceedingly improved crease resistance without much loss in tensile strength, elongation, and tear strength. The softness of cotton was retained. It was deduced that the amidoximate hydrochloride might presumably split off hydrochloric acid and act as a self-catalyst in the formaldehyde-curing. '