MELT SPINNING METHOD OF POLYESTER MONOFILAMENT FOR SCREEN GAUZE AND POLYESTER MONOFILAMENT FOR SCREEN GAUZE

PROBLEM TO BE SOLVED: To provide a method for producing a polyester monofilament for screen gauze, having excellent fiber diameter uniformity. SOLUTION: The melt spinning method of a polyester monofilament for screen gauze by using a polyester having ≤270°C melting peak temperature in a differential...

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Bibliographische Detailangaben
Hauptverfasser:	MORI YOSHITOKI, OGUCHI TOMOHIRO, KUROKAWA HIROYUKI
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:	PROBLEM TO BE SOLVED: To provide a method for producing a polyester monofilament for screen gauze, having excellent fiber diameter uniformity. SOLUTION: The melt spinning method of a polyester monofilament for screen gauze by using a polyester having ≤270°C melting peak temperature in a differential scanning calorimetry and 0.45-1.20 intrinsic viscosity comprises, in melt spinning of a monofilament, using an extruder having ≤50ppm oxygen concentration at a chip supply part and ≤295°C chip melt temperature, keeping the retention time of ≤20 minutes for the polymer from the biting of chips in an extruder screw to discharging at a spinneret and controlling the spinning temperature ≤295°C. COPYRIGHT: (C)2007,JPO&INPIT