Self crimping yarn and process

Self crimping yarn and process

Two molten streams of polyester polymer are extruded at different speeds to intersect below the spinneret. The spinning speed is relatively high, and the resulting filament has shrinkage peaks and valleys along its length. When a number of such filaments are relaxed in a yarn bundle, the yarn sponta...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: DEES, JOHN R, WALKER, DARWYN E, BROMLEY, JAMES E, MOWE, WAYNE T, FAMILANT, HAROLD M
Format: Patent
Sprache:eng
Schlagworte:
APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS
CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS
MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OFARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES ORRIBBONS
NATURAL OR ARTIFICIAL THREADS OR FIBRES
SPINNING
TEXTILES
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Beschreibung
Zusammenfassung:Two molten streams of polyester polymer are extruded at different speeds to intersect below the spinneret. The spinning speed is relatively high, and the resulting filament has shrinkage peaks and valleys along its length. When a number of such filaments are relaxed in a yarn bundle, the yarn spontaneously develops crimp.