| 摘要 |
<p>A polytrimethylene terephthalate monofilament yarn which is excellent in flexibility, flex recovery, and durability in long term use. It is characterized by being made of a polytrimethylene terephthalate comprising 90 mol% or more trimethylene terephthalate repeating units and 10 mol% or less repeating units of another ester and by having a single yarn fineness of 50 dtex or higher, an intrinsic viscosity of 0.8 to 1.3 dl g, and a shrinkage in boiling water of 2% or lower.</p> |
