UNDRAWN POLYETHYLENE TEREPHTHALATE (PET) FIBER, DRAWN PET FIBER, AND TIRE-CORD COMPRISING THE SAME

摘要

The present invention relates to one kind do not extract PET fiber and drawn PET fiber those to be capable of providing modulus and good dimensional stability that crown ply rope etc. display more improves and tyre cord include identical. It is 25% or more that this, which does not extract PET fiber and can be its crystallinity of fiber, birefringence index 0.085 to 0.11, the amorphous orientation factor (AOF) is 0.15 or smaller, and be 258 C0 or more with fusion temperature Tm.