SPINNING OIL FOR SYNTHETIC FIBER AND PRODUCTION OF POLYESTER FIBER AND FALSE-TWISTED POLYESTER YARN USING THE SPINNING OIL

PROBLEM TO BE SOLVED: To obtain a spinning oil free from the troubles of yarn breakage, fluffing and heater contamination, effective for improving the operation stability and suitable for the production of false-twisted polyester yarn, or the like, by compounding a specific amount of an antioxidant...

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Bibliographische Detailangaben
Hauptverfasser:	TSUJIMOTO KEIZO, KITAHARA TAKESHI
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 CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, ORYARNS FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR LAUNDERING MECHANICAL FINISHING OF YARNS OR ROPES NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING TEXTILES TREATMENT OF TEXTILES OR THE LIKE TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS WARPING OR BEAMING YARNS YARNS OR THREADS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To obtain a spinning oil free from the troubles of yarn breakage, fluffing and heater contamination, effective for improving the operation stability and suitable for the production of false-twisted polyester yarn, or the like, by compounding a specific amount of an antioxidant composed mainly of DL-α- tocopherol to a spinning oil. SOLUTION: A spinning oil containing an aliphatic polyester compound produced by reacting an aliphatic alcohol with an aliphatic carboxylic acid such as dioleyl adipate as a main component is compounded with 0.01-1.0 pt.wt. (based on 100 pts.wt. of the active component of the oil) of an antioxidant composed mainly of DL-α-tocopherol (vitamin E). Preferably, a false-twisted polyester fiber is produced by applying the spinning oil for synthetic fibers to a melt-spun highly oriented undrawn polyester yarn having a birefringence (Δn) of 0.020-0.070 in an amount of 0.2-0.6 pt.wt., based on 100 pts.wt. of the undrawn yarn and subjecting the yarn to simultaneous drawing and false-twisting treatment.