Polyester yarn refers to the yarn spun from polyester as raw material. Polyester is a kind of fiber made by spinning a type of polymer, mostly refers to the fiber produced from ethylene phthalate as raw material. Name "polyethylene terephthalate" abbreviation, referred to as "PET" fiber. Commonly known as polyester in our country. The so-called "yarn" actually refers to the general term of "yarn" and "thread", which is defined as follows in clothing material science: "yarn" is the arrangement of many short fibers or filaments in an approximately parallel state, and along the axial direction Rotate and twist to form a slender object with certain strength and linear density; and "thread" is a strand formed by twisting two or more single yarns. Yarn is a thin strand of cotton, wool, hemp, chemical fiber, etc., which is elongated and twisted (usually used as a raw material for weaving), and then made of cotton, hemp, silk, wool and other fine strands. Thin strands, called threads.
Polyester fiber refers to the main chain containing ester group, a type of polymer fiber made by spinning, mostly refers to the fiber produced from ethylene phthalate as raw material, according to the English name of its raw material "polyethylene terephthalate" Abbreviation, referred to as "PET" fiber. Commonly known as polyester in our country. The so-called "yarn" actually refers to the general term of "yarn" and "thread", which is defined as follows in clothing material science: "yarn" is the arrangement of many short fibers or filaments in an approximately parallel state, and along the axial direction Rotate and twist to form a slender object with certain strength and linear density; and "thread" is a strand formed by twisting two or more single yarns.
Fiber has two major characteristics: one is that it is so thin that people cannot directly observe it with the naked eye, and the diameter is generally between a few microns to tens of microns or finer; The infinity is related to the type of fiber, which makes the fiber mechanically exhibit long properties, such as a small range of partial deformation when it is bent and twisted, and a considerable deformation even in the elastic range when it is stretched as a whole. Therefore, simply speaking, the fiber is a kind of thin and long, that is, the diameter is so small that it cannot be directly observed by the naked eye, and the ratio of its length to its diameter is more than tens of times.
