The yarn is shā, and the radical is simplified to the radical. Save strokes and simplify them according to ancient calligraphy. Thin silk is a model of yarn. A thin thread spun by stretching and twisting fibers, usually used as a textile raw material. Such as cotton yarn, spinning and yarn. Lightweight silk fabric. For example, biography of Han Jiang Chong: Fill clothes with gauze. Yi Yan is also used as a surname.
Spinning technology, spinning cotton into yarn, generally has to go through the main processes such as blowing, carding, drawing, roving and spinning. Yarn and thread used in high-end products also need combing.
To produce cotton yarn with different requirements, different processing procedures should be adopted, such as spinning pure cotton yarn and polyester-cotton blended yarn. Due to different raw materials, different physical properties of raw materials and different product quality requirements, different production processes should be adopted in processing.
Spinning is a science that studies the processing of textile short fibers into yarns. Yarn is generally made of many short fibers with different lengths, and some are made of very long continuous monofilaments. In the process of spinning, impurities need to be removed first, that is, the raw materials are preliminarily processed, which is also called the preparation of spinning raw materials.
Spinning can be divided into pure cotton yarn, pure chemical fiber yarn, cotton blended yarn, wool blended yarn and special-shaped yarn according to the different raw materials used. Spinning methods are different: ring spinning, air spinning, electrostatic spinning, etc. Spinning process is different: carded yarn, combed yarn, peach wool yarn, etc. Twist directions are different: hand twist and backhand twist.