Introduction: Polyester Anti-UV yarn refers to a type of polyester yarn that is specifically designed to resist the harmful effects of ultraviolet (UV) radiation from the sun. UV radiation can cause damage to textiles, to fading, degradation, and a reduction in the overall lifespan of the material. Polyester, while known for its durability, may still be susceptible to UV damage over time. To address this issue, our produce polyester yarns with added UV-resistant properties. These yarns are often treated or modified during the manufacturing process to enhance their ability to withstand exposure to sunlight. The anti-UV treatment helps protect the fabric or material made from this yarn from the negative effects of prolonged sun exposure. Application: YUSHENG Polyester Anti-UV Yarn can fully satisfy their applications in marine fabrics, windsurfing fabrics, roofing materials, sunshade fabrics, awnings, etc., and it can prolong the service life of the end products under harsh outdoor environmental conditions.