Qiana
Qiana ( ) is a silky nylon fiber developed in 1962 at the DuPont Experimental Station by Stanley Brooke Speck. The fiber was named "qiana" when introduced by DuPont in 1968. Initially intended for high-end fashions, it became a popular material in the 1970s for faux-silk men's shirts, displaying bold patterns. The shirts were generally cut tight and included wide collars to fit over the collars of the double-knit suit coats, which were worn popularly to discos.

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 the diamine bis (para-aminocyclohexyl)methane and dodecanedioic acid.

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.
Q177941
nylon
Concept
Q5299210
DuPont Experimental Station
LOC
Q38589917
DuPont
ORG
Q5300053
double-knit
Concept
Q622425
disco
Concept
Q145273
polyamide
Concept
Q81163
polymer
Concept
Q2500485
diamine
Concept
Q5287812
dodecanedioic acid
Concept
Q7267622
Qiana
ORG
Q7267622
Qiana
ORG
1962-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1962
DATE
1968-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1968
DATE
1970-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1970
DATE
1968-12-17T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
December 17, 1968
DATE
made from material
inception