Stretch polyster/cotton spun yarn

Details Stretch polyster/cotton spun yarn Stretch polyster/cotton spun yarn

2006-05-02

2006-05-02

Calvert, John J. (Department: 3765)

Textiles: spinning, twisting, and twining

Strand structure

Staple fiber blends

Reexamination Certificate

active

07036299

ABSTRACT:
A spun yarn of cotton (35 wt %-80 wt %) and a bicomponent staple fiber (20wt%-65wt%) of poly(ethylene terephthalate) and poly(trimethylene terephthalate) based on total weight of the spun yarn. The spun yarn has a total boil-off shrinkage of about 22%. The bicomponent staple fiber component has a tow crimp development value of about 35%-70%; a tow crimp index value of about 14%-45%; a length of about 1.3-5.5 cm; and a linear density of about 0.7-3.0 decitex per fiber. The difference between the crimp index and the crimp development values is about 24%-35% absolute.

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Kathryn L Hatch, Textile Science, West Publishing Company, 1993, 1stedition, p. 90.
Uster Statistics 2001, Statistics on the quality of carded PES/CO 65/35 and 67/33 ring-spun yarns determined with Uster® testing instruments for the textile laboratory, Zellweger Luwa AG, 16.1, 16.2, 16.3, 16.4, 16.5, 16.6, 16.7, 16.8, and 16.9.
Kathryn L. Hatch, Textile Science 1993, West Publishing Co., pp. 270-273.

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