| 摘要 |
<p>A method for manufacturing a polyester mixed fiber yarn, characterized in that a base polymer comprising a polyester and a polyester composition (A) having the base polymer and 0.5 to 5.0 wt % of another polymer (P) incorporated therein are melt-discharged from one or separate spinnerets and spun as a group of yarns (A) comprising the polyester composition (A) and a group of yarns (B) comprising the base polymer, the groups of yarns are separately cooled and solidified under conditions wherein a cooling wind having a speed of 0.20 to 0.80 m/sec is blown on the group of yarns (B) and a cooling wind having 1.1 times or more said speed is blown on the group of yarns (A), and then the two groups of yarns are doubled and are taken off at a speed of 2500 m/min or more. The method allows the stable production of a polyester mixed fiber yarn exhibiting a feeling of dilation and a quality appearance.</p> |
