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US 5,549,957 AGranted
Bulked continuous filament carpet yarn
OwnerEdward J. Negola, James R. Kennedyinventors
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Abstract
A bi-component, multifilament synthetic dyeable carpet face yarn that is manufactured using the sheath-core melt spinning process is constructed so as to include a plurality of individual uniformly sheath-cored filaments having a sheath of virgin polyamide (e.g., nylon) and a polymer core that cannot be dyed using standard atmospheric pressure carpet dyeing methods used to dye the sheath filaments. This yarn is a less expensive substitute for 100% polyamide tufted carpet face yarn.
Claims4
A carpet tufted with a bulked continuous filament carpet face yarn, wherein said yarn comprises:
- a) a bundle of drawn and crimped bi-component filaments;
- b) each filament consisting essentially of an outer sheath of nylon surrounding a core consisting of fiber forming polymeric material;
- c) said nylon sheath constituting from twenty to fifty percent of the total weight of each filament wherein said polymeric core constitutes the remainder of the total weight of each filament;
- d) said nylon sheath being dyed under standard atmospheric pressure using nylon dye techniques and said polymeric core material being undyeable under standard atmospheric pressure using said nylon dye techniques;
- e) wherein the percentages of nylon and polymeric material in combination impart the properties of recovery from crushing or compression;
- the ability
- to be tufted at high speeds;
- the ability to apply desired color on conventional dyeing equipment at atmospheric pressure;
- strength to resist heavy foot traffic;
- and good bulking properties equivalent to those of a bulked continuous filament carpet face yarn consisting of 100% nylon.
7 more elements
Dependencies are inferred from the claim text.