5.The water adjudge with special design can adjust water to high or low wantonly. According to the quantity of dyeing yarns, the number of single yarn and its sorts.
6.Experimental results revealed that the number of yarn wet snarling can be automatically calculated with a high accuracy by the proposed method, besides, the height and width values of each snarling can also be obtained.
7.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.