Movement law of neps in electrostatic field

To investigate the movement law of neps in the electrostatic field,some fiber neps and seed coat neps(SCN) were randomly selected from different materials and placed in a self-made electrostatic device and their state of charging and take-off was observed by adjusting static voltage.The voltages of different neps when they take off from the electrostatic plate were recorded.The average electric field intensity for SCN is higher than that for fiber neps when they take off from the electrostatic plate.Correlation analysis indicated that the electric field intensity needed for neps to take off had a positive linear correlation with their average size.The conclusion provides an experimental foundation for the application of electrostatic web-cleaner to carding machines.