ELTTOB using recycled bottle flakes as raw materials, HI-WARM added with light-absorbing and heat-storing nano-functional powder, HI-COOL with a moisture-absorbing and sweat-wicking structure, and improved Low-Temperature Deep-Dyeing Polyester, Antimony Free Polyester fibers that do not use antimony heavy metals as catalysts, and Recycled Cationic Dyeable Fiber made up of cationic dyeable fibers and eco-friendly recycled polyester fibers.