POLYESTER YARN AND METHOD FOR MANUFACTURING SAME

摘要

The present invention relates to a polyester yarn usable for fabric for an airbag, and particularly, to a polyester yarn having a diethylene glycol content of 1.1 to 2.5 wt% and initial modulus of 100 g/d or lower. The present invention also relates to a method for manufacturing the polyester yarn and to fabric for an airbag produced from the polyester yarn. The polyester yarn of the present invention has excellent humidity and temperature resistance and light resistance and maintains superior mechanical properties even after being under a high temperature/high humidity condition for a long time. Therefore, the polyester yarn of the present invention, when used for fabric for an airbag, may be easily installed in a vehicle and provide superior shape stability and air tightness, and minimize shock being applied to a seat occupant to safely protect the seat occupant.