Chemical fiber has a large friction coefficient and poor electrical conductivity, and due to the increased pressure of the drafting device, the top rollers and apron rings are easily tangled during the spinning process, affecting product quality. It is particularly serious during high temperature and high humidity seasons, and may even affect production. In order to reduce the phenomenon of winding of top rollers and aprons, the following measures should be taken.
01 Improve top rollers and aprons The finish
Nitrile top rollers and aprons should be acid-treated regularly to improve the surface finish of the top rollers and aprons and reduce the phenomenon of fiber wrapping. There is also a coating method for surface treatment of nitrile top rollers, which is characterized by not damaging the top roller and having strong electrical conductivity, but weak control over the fibers.
02 Strengthen temperature and humidity control
Polyester and other chemical fibers generally absorb moisture It has poor elasticity and low moisture regain. Moisture is only adsorbed on the fiber surface and is particularly sensitive to changes in temperature and humidity of the surrounding environment. When the humidity is high, the fiber surface becomes sticky and is easy to wrap around top rollers and apron rings; when the humidity is low, static electricity If the phenomenon is serious, it is also easy to wrap the top roller and apron ring. Chemical fiber spinning also has strict temperature requirements. If the temperature is too high, the oil in the chemical fiber will easily volatilize, generating static electricity and winding the roller; if the temperature is too low, the fiber will become hard, which is not conducive to drafting and easy to break. Therefore, the relative humidity in the roving process is generally controlled within the range of 55% to 65%, and the temperature is controlled within the range of 20~30°C.
03 Improve the cleaning efficiency of the rotating belt or fixed pile plate on the surface of the top roller, apron and roller</p
