POLYVINYL ALCOHOL FIBER AND ITS PRODUCTION

PROBLEM TO BE SOLVED: To obtain the subject fiber having high non-circularity of the cross-section and excellent mechanical properties, heat-insulation, water-absorption, dyeing and weaving performance and fastness and useful for clothes, etc., by spinning a spinning dope containing a polyvinyl alco...

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Bibliographische Detailangaben
Hauptverfasser:	YAMAMOTO YOICHI, OGINO YUJI, HIKASA JUNICHI
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 obtain the subject fiber having high non-circularity of the cross-section and excellent mechanical properties, heat-insulation, water-absorption, dyeing and weaving performance and fastness and useful for clothes, etc., by spinning a spinning dope containing a polyvinyl alcohol polymer and a specific amount of a specific phyllosilicate. SOLUTION: This polyvinyl alcohol fiber having a circular length ratio of the cross-section of >=0.85 and a ratio of (the diameter of the maximum inscribed circle)/(the diameter of the minimum inscribed circle) of the fiber cross- section of >=0.35 is produced by spinning a spinning dope containing a polyvinyl alcohol polymer and >=0.05wt.% (based on the polymer) of a swelling phyllosilicate having a cation exchange capacity of >=40mg/100g such as synthetic fluorine mica. Preferably, a fiber structure is produced by compounding the polyvinyl alcohol fiber.