| 摘要 |
PURPOSE:To produce the titled combined filament yarn by simple high-speed direct spinning and drawing process, in high efficiency, by melting and extruding plural kinds of polyesters having different melting points through separate nozzles, taking up the extruded filaments under specific condition and drawing the obtained filaments. CONSTITUTION:Plural kinds of polyesters having different melting points are melted and extruded through the spinneret 1 to obtain an undrawn combined filament yarn composed of the high-melting polyester yarn 2 and the low-melting polyester yarn 3. The undrawn yarn is passed through the cooling apparatus 4, collected and oiled with the oiling apparatus 5 placed within 3m from the cooling apparatus 4, taken up with unheated godet roller 6 at a take-up speed of >=4,000m/min, and drawn between the godet roller 6 and the godet roller 7.
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