METHODS AND APPARATUS FOR MAKING ELASTIC COMPOSITE YARNS

Composite yarns have a filamentary core provided with at least one elastic performance filament and at least one inelastic control filament. A fibrous sheath, preferably formed from spun staple fibers, surrounds the filamentary core, preferably substantially along the entire length thereof. The at l...

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Bibliographische Detailangaben
Hauptverfasser:	HART REUBEN E, ALLEN, JR. JOHN L, LITTLE FULTON A, THARPE, JR. RALPH B
Format:	Patent
Sprache:	eng
Schlagworte:	CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, ORYARNS LOOMS MECHANICAL FINISHING OF YARNS OR ROPES METHODS OF WEAVING NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING SPINNING OR TWISTING TEXTILES WARPING OR BEAMING WEAVING WOVEN FABRICS YARNS YARNS OR THREADS
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Beschreibung
Zusammenfassung:	Composite yarns have a filamentary core provided with at least one elastic performance filament and at least one inelastic control filament. A fibrous sheath, preferably formed from spun staple fibers, surrounds the filamentary core, preferably substantially along the entire length thereof. The at least one elastic performance filament most preferably includes a spandex and/or a lastol filament. The at least one inelastic control filament is most preferably formed of a textured polymer or copolymer of a polyamide, a polyester, a polyolefin and mixtures thereof. Preferably, the fibrous sheath is formed of synthetic and/or natural staple fibers, most preferably staple cotton fibers. The elastic composite fibers find particular utility as a component part of a woven textile fabric, especially as a stretch denim fabric, which exhibits advantageous elastic recovery of at least about 95.0% (ASTM D3107).