The problems of static electricity in the polymer industry are many and varied (see Table 1). They range from the removal of unwanted charge during fiber spinning and processing in order to avoid charging the machine and to reduce handling problems and dust pickup (fog marking), through the physiological problems associated with synthetic fiber carpets and automobiles to the explosion hazards of aircraft refueling, hospital environments, and mines. This is not to imply that all static is bad; in xerography, for example, the latent electrostatic image is developed by using toner (dry ink) charged by tumbling against the carrier; electrostatic separators make use of triboelectrification to accomplish separations not possible by other techniques.