Air-jet spinning and air-jet spinning machine introduction

　　The main principle of air-jet spinning is to use jet airflow to perform false twist on the fiber sliver, and some free fibers on the fiber sliver are wrapped around the fiber sliver to spin. There are two types of single nozzle and double nozzle. The latter has good spinning quality and stability. The fiber sliver is attenuated by the drafting device, output from the front roller, through the No. 1 nozzle, No. 2 nozzle, yarn guide hook, and yarn guide roller, it is wound into a bobbin from the grooved drum. The swirling directions of the two nozzles are opposite, and the vortex intensity of the second nozzle is greater than that of the No. 1 nozzle, so that the twisting on the yarn between the two nozzles can overcome the torque and resistance imposed by the No. 1 nozzle on the yarn and pass to the front roller. At the nip. The free end of the twisted fiber on the periphery of the fiber strip is affected by the No. 1 nozzle and is wrapped on the fiber strip in the opposite direction. The twisted yarn core part of the fiber retreats through the nozzle, while the wrapping fiber is In the process of reverse unwinding, the tighter the bag becomes tighter. It provides yarn strength and cohesion. Compared with ring spinning, air-jet spinning has the advantages of high output, large package and short process. Air-jet spinning speed ranges from 100-200 m/min, and the suitable spinning count range is 5.5-3.0 tex. The output is 10 times that of ring spinning and 2 times that of open-end spinning. It is suitable for spinning all kinds of staple fiber and filament core-spun yarn, and processing plied medium and long chemical fiber yarn. The shape of air-jet spinning is similar to air-jet spinning, with hard hand feeling and good hairiness.