| 摘要 |
PROBLEM TO BE SOLVED: To provide a high-strength polyester monofilament suitable for a filament for a screen gauze, and having excellent processability and handleability; and to provide a method for producing the monofilament. SOLUTION: The monofilament is obtained by a spin-draw method comprising extruding a polyester polymer from a melt-spinning cap, cooling the extruded polymer, imparting an oil thereto, taking up the resultant filament with the oil, and winding the filament at≥1,500 m/min while continuously drawing the taken-up filament without winding the filament once. The monofilament has characteristics of (1) 10-40 dtex size, (2)≥1.380 g/cm<SP>3</SP>density and (3)≥8.0 cN/dtex strength at break. COPYRIGHT: (C)2004,JPO
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