Crimpable nylon bicomponent filament and fabrics made therefrom
AssigneeE. I. Du Pont de Nemours and Company
InventorsWilliam Benjamin Segraves, Kenneth Lee Mulholland
Life of this patent
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Abstract
A crimpable, nylon bicomponent filament having a sheath of a selected polyamide on an eccentric core of a random copolymer of hexamethylene dodecanedioamide and .epsilon.-caproamide units. The copolymer contains about 25-45% by weight of .epsilon.-caproamide units.
Claims12
A fabric comprising yarn of non-precrimped nylon filament consisting essentially of two, continuous, adherent, eccentric components, one component being a sheath consisting essentially of a homopolymer selected from the group consisting essentially of polyhexamethylene dodecanedioamide, polyhexamethylene adipamide, and poly-.epsilon.-caproamide, the other component being a core consisting essentially of a random copolymer of hexamethylene dodecanediomamide and .epsilon.-caproamide units, said copolymer consisting about 25-45% by weight of .epsilon.-caproamide units, said yarn being made into said fabric without precrimping and is thereafter crimped.
A crimpable non-precrimped nylon filament consisting essentially of two, continuous, adherent, eccentric components, one component being a sheath consisting essentially of polyhexamethylene dodecanedioamide and the other component being a core consisting essentially of a random copolymer of hexamethylene dodecanedioamide and .epsilon.-caproamide units, said copolymer containing about 25-45% by weight of .epsilon.-caproamide units.
A crimpable non-precrimped nylon filament suitable for yarn for making into fabric without precrimping and for being crimped thereafter, said filament consisting essentially of two, continuous, adherent eccentric components, one component being a sheath consisting essentially of a homopolymer selected from the group consisting of polyhexamethylene dodecanedioamide, polyhexamethylene adipamide and, poly-.epsilon.-caproamide, the other component being a core consisting essentially of a random compolymer of hexamethylene dodecanedioamide and .epsilon.-caproamide units, said copolymer containing about 25-45% by weight of .epsilon.-caproamide units.
Dependencies are inferred from the claim text.