| 摘要 |
PURPOSE:To obtain the titled yarn having excellent crimp performance, bulkiness and feeling, by making fixed temperature difference between the outermost periphery part of a nozzle and the innermost periphery part by a heater set on a spinneret and spinning the yarn at a specific take-up speed. CONSTITUTION:A heating member 2 is set at a central part C of a spinneret 1 and the heating member 2 is heated so the >=20 deg.C temperature difference is produced between the innermost periphery part I of a nozzle 3 bored through the spinneret 1 and the outermost periphery part O. Then a thermoplastic polymer such as polyester, polyamide, etc., is subjected to melt spinning by using the spinneret 1 and taken off at 3,000-9,000m/min take-up speed to give the aimed combined filament yarn. The heating member 2 is preferably a heating rod projecting to the inside of the spinneret.
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