This process includes processing film by corona plasma in atmosphere under ordinary pressure and then coating and drying it. The units used in the invention include film roller, directional guide roller which is a conductor enveloped in a layer of dielectric, conductive wire, upper and lower coating rolls, baking oven, press roller, active roller, drive belt and an electric motor. The film processed according to this invention can be used as a projector film which features that it can be written by ordinary fluid pens or copied, the writing performance can be kept for ever and it can be reused. Such modified film can also be used for a computerized laser printer typesetting system. |