Qiana
Qiana (
Qiana is described in U.S. patent 3249591 as a polyamide fabric having improved resilience and silk-like hand, combined with superior wash-wear performance. The polymer is prepared from 4,4'-diaminodicyclohexylmethane and dodecanedioic acid.[3]
Although the fiber described in the above patent provided "wash and wear" properties because of the chemical composition of the polymer, fabrics from this fiber did not have the aesthetic properties of silk desired in the total Qiana product package. To provide silk-like aesthetics differential shrinkage technology was added to the basic polymer technology wherein half of the fibers in a yarn bundle shrink more than the other half. This technology is described in U.S. Patent # 3,416,302 granted December 17, 1968, to Dr. Robert H. Knospe, assignor to E.I. du Pont de Nemours.
References
- ^ "Qiana". Dictionary.com Unabridged (Online). n.d. Retrieved June 17, 2020.
- ^ "Archived copy". www.time.com. Archived from the original on 20 February 2005. Retrieved 14 January 2022.
{{cite web}}: CS1 maint: archived copy as title (link) - ISBN 978-3527306732.