| 摘要 |
<p>In production of polytrimethylene terephthalate staple fibers, in a period of time after a polytrimethylene terephthalate polymer is melt spun, and the resultant undrawn tow is taken-up through a taking roll and placed in a can, but before the undrawn tow placed in the can is subjected to a drawing step, the water content of the undrawn tow is maintained at 0.5 to 12% by mass and the temperature of the ambient atmosphere around the undrawn tow is maintained at 35 DEG C or less. <IMAGE></p> |
