PRODUCTION OF EASILY DYEABLE COPOLYESTER FIBER

PURPOSE:The high-speed melt spinning of a copolyester containing, as a major component, ethylene terephthalate units and 1,2-bis(4-carbophenoxy)ethane, as a comonomer, is conducted to produce the titled fiber which is dyeable at normal pressure and has reduced fluffs and yarn breakage. CONSTITUTION:...

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Bibliographische Detailangaben
1. Verfasser:	SATOU TETSUO
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 CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY NATURAL OR ARTIFICIAL THREADS OR FIBRES ORGANIC MACROMOLECULAR COMPOUNDS SPINNING TEXTILES THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	PURPOSE:The high-speed melt spinning of a copolyester containing, as a major component, ethylene terephthalate units and 1,2-bis(4-carbophenoxy)ethane, as a comonomer, is conducted to produce the titled fiber which is dyeable at normal pressure and has reduced fluffs and yarn breakage. CONSTITUTION:The polycondensation reaction between dimethyl ester of 1,2-bis (4-carbophenoxy)ethane, dimethyl terephthalate and ethylene glycol is effected to form a polyethylene terephthalate copolymer containing 2-20mol% of 1,2-(4-carbophenoxy)ethane. The polymer is melt-extruded through a spinneret, collected with a nozzle guide for applying the finishing oil and taken up at a speed over 5,000m/min to give the objective fiber.