With the extension of time, the properties of Nylon POY became worse, i.e. higher concentration of oil, poor appearance of oil membrane and bad friction, cohesion as well as lower antistatic property.

• 发现随着时间的延长，纤维表面油剂浓度增高，油膜状态变差，纤维磨擦性能、抱合性能下降。