SELF-CRIMPING POLYAMIDE FIBERS

Self-crimping filaments of nylon 6 or 66 are made by extrusion into an air-quench cross-flow below 3 m/s to give a filament surface temp. of 40 to 130 C, wetting this with water, and drawing for 1.3 to 1 min. without external heating. Heat-relaxation develops a crimp of at least 6 on the filament cr...

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Bibliographische Detailangaben
Hauptverfasser:	HEBELER HAROLD HENRY, CHENG LIN PERRY HAN, FERNSTROM GEORGE ARVID
Format:	Patent
Sprache:	eng ; kor
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:	Self-crimping filaments of nylon 6 or 66 are made by extrusion into an air-quench cross-flow below 3 m/s to give a filament surface temp. of 40 to 130 C, wetting this with water, and drawing for 1.3 to 1 min. without external heating. Heat-relaxation develops a crimp of at least 6 on the filament crimp index. The amt. of water applied pref. is 1-15 wt.% and drawing is by cold rolls or over a cold snubbing pin. Carpet yarns have improved tenacity.