Bulked random copolyamide yarns of nylon 6 and nylon 6,6 having enhanced dyeability
AssigneeE. I. Du Pont de Nemours and Company
InventorWilliam T. Windley
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Abstract
Bulked random copolyamide yarns having enhanced dyeability as compared to comparable nylon 6 fibers are disclosed. The random copolyamides contain from 80 to 96% by weight of nylon 6 units and 4 to 20% by weight of nylon 6,6 units with from 90 to 94% nylon 6 and 6 to 10% nylon 6,6 being the preferred range. Further increases in dyeability are obtained by steam heat-setting the yarns.
Claims2
A bulked random copolyamide yarn comprising 4 to 20 weight percent repeating units of the structure ##STR3## and 80 to 96 weight percent repeating units of the structure ##STR4## said yarn before heat-setting having a cold dye rate of at least 1000.times.10.sup.-5 sec.sup.-1.
Dependencies are inferred from the claim text.