COMPOSITE FIBER

PROBLEM TO BE SOLVED: To provide a sea-island composite fiber composed of a sea-island component having a modified cross-section and a super thin fineness, the sea-island component having a uniform modified cross-section degree and a uniform circumscribed circle diameter.SOLUTION: The sea-island com...

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Bibliographische Detailangaben
Hauptverfasser:	KISHIRO AKIRA, FUNAKOSHI SHOJI, MASUDA MASATO
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 sea-island composite fiber composed of a sea-island component having a modified cross-section and a super thin fineness, the sea-island component having a uniform modified cross-section degree and a uniform circumscribed circle diameter.SOLUTION: The sea-island composite fiber includes a readily soluble polymer as a sea component, and a sparingly soluble polymer as an island component, in which a circumscribed circle diameter of the island component is in a range of 10-1000 nm, and a variation of the circumscribed circle diameter is 1-20%, and a modified cross-section degree is 1.2-5.0, and a variation of the modified cross-section degree is 1-10%. It is preferable that a cross-section perpendicular to a fiber axis of the island component has an outline having at least two straight line portions.