Polymer Modifications for Improved Textured Nylon 66 Yarns and Processes

Abstract

Increased molecular weight and branching agents are used in melt spinning partially oriented nylon 66. The fiber solidifies more rapidly during spinning and has larger crystallites and increased elongation-to-break versus conventional PON, consistent with a stress-induced crystallization mechanism. When textured, the fiber produces higher crimp. Gains in both spinning and texturing productivity are documented.