Abstract
Cross-linking of a regenerated cellulose fiber is useful for increasing properties especially under wet or alkaline conditions, but it brings such defects as poor dyability, knot strength, toughness.
For prevention against these defects, the super rayon which has a high knot strength and toughness was cross-linked by the dialdehyde.
Obtained fiber has a large resistance to water- and alkali-swelling comparable to cotton and a good mechanical properties. The poor dyability is improved by alkaline treatment without spoiling other properties as the cross-linked fiber.
Thus the cross-linked super rayon is to be durable to the mercerization at the 100% rayon or cotton-blended fabrics and exhibits a suitable draping property.
