| 摘要 |
PROBLEM TO BE SOLVED: To provide a polyester filament package in which there is less occurrence of a defect such as sink marks, that has a fine fineness and a high-strength, and is excellent in dimensional stability.SOLUTION: Provided is a polyester filament package which is a package in which a polyester filament having a polyene terephthalate as a main constituent, is wound up, and in which the 5% modulus of a filament wound up over a wound pipe having a hardness of 200 kgf/100 mm or more and an outer diameter of 60 mmΦ or more, is 2.0 cN/dtex or more.SELECTED DRAWING: Figure 1 |
