| 摘要 |
PURPOSE:To obtain the titled fibers for knitted and woven fabrics, etc. having a high strength, heat stability and improved dyeability, by quenching filaments melt extruded through spinneret extrusion holes to the solidifying point or below, passing the quenched filaments through a heated atmosphere, adjusting the spinning tension of the resultant filament yarn just after passing through the atmosphere, oiling the filament yarn, and winding the resultant oiled filament yarn at a high speed. CONSTITUTION:Filaments of a thermoplastic polyamide, e.g. nylon 6, melt extruded through spinneret extrusion holes are quenched to the solidifying point of the polyamide, passed through an atmosphere at a temperature (T deg.C) within the range satisfying formula I [T is the temperature ( deg.C); Tm is the melting point of the polyamide ( deg.C)] and formula II [D is the fineness per filament of the wound filament yarn (deniers); V is the winding speed (m/min)] at the same time for 0.01-0.03sec, adjusting the spinning tension (Gg) of the resultant filament yarn just after passing through the atmosphere within the range expressed by formula III [G is the spinning tension (g); F is the number of filaments in the wound filament yarn (filaments)], oiling the fialment yarn, and winding the oiled filament yarn at 4,500-5,500m/min speed to give the aimed fibers.
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