COLORED POLYPROPYLENE FIBER HAVING EXCELLENT COLOR UNIFORMITY, METHOD OF PRODUCING THE SAME AND WOVEN OR KNITTED FABRIC THEREFROM

COLORED POLYPROPYLENE FIBER HAVING EXCELLENT COLOR UNIFORMITY, METHOD OF PRODUCING THE SAME AND WOVEN OR KNITTED FABRIC THEREFROM

PROBLEM TO BE SOLVED: To provide colored polypropylene fiber that has excellent color uniformity enough to inhibit streaky defects caused by color difference, when woven or knitted fabrics are formed, provide a method of producing the same and provide woven and knitted fabrics having no uneven color...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: FUKUI JUETSU, SAKAKURA HIDEO
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
CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, ORYARNS
LOOMS
MECHANICAL FINISHING OF YARNS OR ROPES
MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OFARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES ORRIBBONS
METHODS OF WEAVING
NATURAL OR ARTIFICIAL THREADS OR FIBRES
SPINNING
TEXTILES
WARPING OR BEAMING
WEAVING
WOVEN FABRICS
YARNS
YARNS OR THREADS
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide colored polypropylene fiber that has excellent color uniformity enough to inhibit streaky defects caused by color difference, when woven or knitted fabrics are formed, provide a method of producing the same and provide woven and knitted fabrics having no uneven coloring using the colored fiber. SOLUTION: A spun-dyed polypropylene multifilament crimped yarn having a dispersion of brightness ΔL* of ≤0.8 measured with a colorimeter and a fiber fineness of 56-560 dtex is produced by confluenting the molten polypropylene fed from the main extrusion machine with another molten polypropylene including pigment extruded from another extrusion machine, allowing the resultant composite polymer flow to pass through a dynamic kneading element and extruded through spinning orifices into the polypropylene colored filament yarns. COPYRIGHT: (C)2004,JPO