Air spinning cotton yarn, according to the principle of fluid pressure, causes cotton fibers to enter the air flow cup and form a fiber stream, which continuously moves along the inner wall of the cup. At this time, there is a yarn end outside the cup, which draws out the fibers on the inner wall of the cup and connects them, plus the drilling effect produced by the high-speed rotation of the yarn tail with the cup, it is like "feeding" the cotton fiber while adding yarn. Thread kneading connects the yarn with the fibers on the inner wall of the cup, and draws under the spinning tension of the yarn tube to continuously output the yarn to complete the process of airflow cotton yarn. The characteristics of air-spun cotton yarn The air-spun cotton yarn has the advantages of high speed, large yarn roll, wide adaptability, simple structure and no spindle, ring or traveller, which can double the yield of spun yarn. The difference between rotor spinning cotton yarn and ring spinning: rotor spinning cotton yarn and ring spinning are a new type of spinning technology, and the other is an old spinning technology. Open-end spinning cotton yarn is air-spun cotton yarn, while ring spinning is mechanical spinning, in which the spindle, steel bell, and traveller are added for the year, and the roller is drafted. The air-spun cotton yarn transports the fiber by airflow, which is held by one end for the year. Generally speaking, ring-spun yarn has less hairiness, higher strength and better quality. The process of open-end spinning cotton yarn is short, the raw material is more short-staple, and the yarn wool, count and twist cannot be very high.