Polyester yarn is a type of synthetic yarn made from the polymer polyethylene terephthalate (PET). It is a versatile and durable yarn that is commonly used in textile manufacturing. Polyester yarn can be produced in a range of deniers, or thicknesses, from fine threads to heavy-duty cords. It can be spun into various types of yarn, including textured, filament, and spun yarns. One of the...