ELASTIC FIBER AND MANUFACTURING METHOD

To provide an elastic fiber having excellent elastic recovery and high stress-strain characteristics.SOLUTION: A method for manufacturing an elastic fiber has the step of melt spinning a thermoplastic elastic resin at a spinning speed V1 and further continuously at a spinning speed V2, the thermopla...

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Bibliographische Detailangaben
Hauptverfasser:	TAKARADA WATARU, KANAZAWA TAKESHI, KIKUTANI YUUJI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS,ROPES OR THE LIKE MECHANICAL FINISHING OF YARNS OR ROPES NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING TEXTILES WARPING OR BEAMING YARNS
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Beschreibung
Zusammenfassung:	To provide an elastic fiber having excellent elastic recovery and high stress-strain characteristics.SOLUTION: A method for manufacturing an elastic fiber has the step of melt spinning a thermoplastic elastic resin at a spinning speed V1 and further continuously at a spinning speed V2, the thermoplastic elastic resin comprising a hard segment composed of (a) an aromatic dicarboxylic acid and (b) an alkylene glycol unit and a soft segment composed of (a) an aromatic dicarboxylic acid unit and (c) a polyalkylene ether glycol unit, with a weight ratio of a long-chain diol component of the soft segment being 50% or more, wherein, the following conditions (1) to (3) are all satisfied: (1) V1