Polyester yarn refers to the cotton yarn used in the production of polyester. Polyester is a type of polymer made by spinning fibers. Currently, it refers to fibers produced from ethylene phthalate. According to the English name of the raw material, "polyethylene
"terephthalate" abbreviation, abbreviated as "PET" fiber. It is commonly known as polyester in China. The so-called "yarn" actually refers to the collective name of "yarn" and "thread", and is defined as follows in clothing science: "yarn" Many short fibers or filaments are arranged in an approximately parallel state and twisted in the axial direction to form an elongated object with a certain strength and linear density. The "thread" is formed by twisting two or more single yarns. Into a strand.
Yarn is made of cotton, wool, linen, chemical fiber, etc., which is made by stretching and twisting the fiber (usually used as the raw material for weaving), and then multiple strands of cotton, linen, silk, wool and other fine strands Thin strands, called threads.