| 摘要 |
PURPOSE:The titled fibers, consisting essentially of ethylene terephthalate, and having initial tensile resistance, terminal modulus and crystal size determined from specific load-extension curves and improved dimensional stability and fatigue resistance. CONSTITUTION:Industrial polyester fibers obtained by spinning polyethylene terephthalate through an extruder type spinning machine, passing the resultant filaments through a heated cylinder provided just under a spinneret, quenching the filaments, solidifying the quenched filaments, applying an oiling agent thereto, and drawing the resultant filaments in two stages, consisting of a polyester consisting essentially of ethylene terephthalate as constituent units, and having >=100g/denier initial tensile resistance (Mi), >=15g/denier terminal modulus (Mt) and >=47Angstrom crystal size (D).
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