METHOD FOR PRODUCING PEF YARN, PEF YARN, AND TIRE

摘要

An objective of the present invention is to provide a method for producing a PEF yarn, said method making it possible to obtain a PEF yarn having a high storage modulus. A further objective of the present invention is to provide a PEF yarn having a high storage modulus. An additional objective of the present invention is to provide a tire having improved uniformity and high speed endurance. This method for producing a PET yarn which is a polyethylene-2,5-furandicarboxylate (PEF) yarn is characterized by including a drawing step in which an undrawn yarn formed by melt-spinning a resin composition that includes PEF is drawn to obtain a PEF yarn, wherein the drawing ratio in the drawing step is greater than 6.0.