The dissolving of the water-soluble polyvinyl alcohol(PVA) fiber in the ply yarn is the key process of fabric manufacturing with untwisted yarns.

• 无捻纱的退维工艺是织制无捻纱织物的关键工艺,退维过程的控制一直是困扰水溶性维纶伴纺与混纺产品开发的难点。