MANUFACTURING METHOD OF POLYESTER YARN

摘要

The polyester yarn having an unevenness of fineness was manufactured. A polyester having 0.66 inherent viscosity was melt spinned at 1,300 m/min of spinning velosity, 0.25 mm diameter of nozzle, cooled to 0.40±0.1 m/10 sec air, and passing over a first godet roller and a second godet roller. Obtained undrawn yarn was drawn at 130 degree C to 2.9 of a drawing ratio to give the title polyester yarn.