AW|909/6A take|up machine for FDY one|step spinning of Teijin Co. , Japan was innovated. The number of yarn cake increased from 6 to 9. The production process of 9|cop spun trilobal profiled super bright PET FDY was discussed.

• 对日本帝人公司纺牵一步法 ( FDY)设备 A W-90 9/A卷绕机进行改造 ,由 6头纺改成 9头纺 ,探讨了 9头纺涤纶三叶异型超有光 FDY的生产工艺。