Nylon 66 Yarn with high modulus Breaking elongation of low Modulus at 10 rate in positive pressure and uniformity of a Coil Winding denier has about the same Yarn and a procedureTo the State of fusion spinning nylon 66

摘要

Nylon 66 yarn having particular stress-strain properties, typically also having a soft, luxuriant hand in fabric form. As compared to conventional nylon 66 with comparable boiling water shrinkage, the novel yarn exhibits a higher modulus at break, a lower modulus at 10% elongation, a positive stress index, and excellent denier uniformity. The process involves subjecting the yarn, within 0.016 to 0.11 seconds after solidification of the filaments, to a tension of 0.2 and 1.5 grams per final denier and heating the yarn to a temperature between 50 DEG and 250 DEG C. long enough to reduce yarn retraction below 1%.