POLYESTER CONJUGATED FIBER AND ITS PRODUCTION

PURPOSE:Two different kinds of copolymers mainly consisting of ethylene terephthalate units and containing metal sulphonate groups, different in viscosity, are subjected to side-by-side conjugate spinning and drawn to produce the titled fiber with high thermal shrinkage and good crimping properties....

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Bibliographische Detailangaben
Hauptverfasser:	KUME DAIZOU, YOSHIOKA YOSHINARI, HIROSE KAZUHIKO, MORIGUCHI YOSHIFUMI
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:Two different kinds of copolymers mainly consisting of ethylene terephthalate units and containing metal sulphonate groups, different in viscosity, are subjected to side-by-side conjugate spinning and drawn to produce the titled fiber with high thermal shrinkage and good crimping properties. CONSTITUTION:Two different kinds of copolyesters mainly consisting of ethylene terephthalate units and of 0.5-5mol% of monomers having metal sulfonate groups are subjected to side-by-side conjugate spinning to give an undrawn yarn in which the intrinsic viscosities of polymers A and B satisfy the following equations:[eta]A+0.24>=[eta]B>=[eta]A+0.06,[eta]A>=0.3 and[eta]B