MELT SPINNING OF POWDER-ONTAINING POLYESTER YARN

PROBLEM TO BE SOLVED: To provide a method for melt spinning capable of providing a polyester yarn excellent in physical properties without causing discoloration and reduction in physical properties such as strength, elongation, etc., even by mixing powder having a high water content with a fiber-for...

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Bibliographische Detailangaben
Hauptverfasser:	KANDA HARUHIKO, IWAI SHIGEKI, ISHIDA HIROSHI
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 NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING TEXTILES
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method for melt spinning capable of providing a polyester yarn excellent in physical properties without causing discoloration and reduction in physical properties such as strength, elongation, etc., even by mixing powder having a high water content with a fiber-forming polyester in a molten state and spinning the mixture. SOLUTION: In this method for obtaining a polyester yarn containing =500 ppm water content is supplied to the polymer feed zone 3, the molten polymer is kneaded by a screw in the cylinder of the decompressing and kneading zone 4, water in the powder is separated, the degree of reduction in pressure in the cylinder is adjusted to