An Analysis of Electrostatic Deposition of Particulate Solids

An analysis is presented of the forces on a particle in an electric field as applied to a device for coating particulate matter on a moving web. Important variables are the size, shape, density, and electrical conductivity of the particle; the field strength and the breakdown strength of the atmosphere in the coater gap; the construction of the coater; the waveform of the applied voltage; and the particle charging mechanism.