SPINNING METHOD FOR CONJUGATE FIBER

PURPOSE:To obtain conjugate fiber with good physical properties by melt spinning of a polyamide and polyester through setting their melt viscosity ratio at the spinning temperature within a specified range to effect favorable spinning and drawing process conditions. CONSTITUTION:(A) A polyamide, pre...

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Bibliographische Detailangaben
Hauptverfasser:	TOKUNAGA ISAO, MAEDA YOSHINUKI
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:	PURPOSE:To obtain conjugate fiber with good physical properties by melt spinning of a polyamide and polyester through setting their melt viscosity ratio at the spinning temperature within a specified range to effect favorable spinning and drawing process conditions. CONSTITUTION:(A) A polyamide, pref. nylon 6 or its copolymer and (B) a polyester with ethylene terephthalate residue accounting for pref. >=85mol% of constituent unit are put to melt spinning through setting the melt viscosity ratio at the spinning temperature pref. 270-295 deg.C so as to satisfy the relationship ([A] and [B] are each melt viscosity of the polyamide and polyester at the respective spinning temperatures), enabling drawing of the spun fiber under conditions suitable for both the polymers without causing any trouble, thus obtaining the objective conjugate fiber of good quality.