POLYESTER BINDER FIBER

PURPOSE:To produce the titled fiber by using a specific copolyester at the surface part of a fiber and applying an epoxy compound to the fiber, capable of effectively bonding main fibers with each other and giving a bonded textile product usable in a hot atmosphere with little lowering of the bondin...

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Bibliographische Detailangaben
Hauptverfasser:	SHINOKI MITSUHARU, YOKOZAWA MICHIAKI, KAWAZOE SHINGO, MORITA MASATOSHI
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 produce the titled fiber by using a specific copolyester at the surface part of a fiber and applying an epoxy compound to the fiber, capable of effectively bonding main fibers with each other and giving a bonded textile product usable in a hot atmosphere with little lowering of the bonding strength. CONSTITUTION:The surface of the objective fiber is composed of a poly(ethylene terephthalate/isophthalate) copolyester having a terminal carboxyl group concentration of >=50 equivalent/10 g and containing 20-50mol% ethylene terephthalate unit and the fiber is imparted with >=0.1wt% epoxy compound such as polyethylene glycol diglycidyl ether. The application of the epoxy compound is carried out preferably after melt-spinning the above copolyester singly or in combination with other components and before the drawing of the spun fiber. In the case of using the fiber in the form of a composite fiber, the fiber is preferably a sheath-core composite fiber having the above copolyester as the sheath component.