| 摘要 |
PURPOSE: A polyester multifilament with excellent size stability is provided to enhance degree of orientation and to change microstructure of fully drawn yarn. CONSTITUTION: A method for fabricating polyester multifilament with excellent size stability comprises: a step of extruding an ethylene terephthalate unit at 280-305°C; a step of passing melted yarn(4) through a delayed cooling section; and a step of spinning the yarn at 2,900-3,500 m/min; a step of rolling yarn at 5,800-7,000 m/min. |
