| 摘要 |
PURPOSE:To provide the processing method which does not stain the washing hot water for removing residual emulsion films and does not entail the putrefaction thereof in the processing method for a mono sheet type planographic printing plate of a DTR system using aluminum as a base. CONSTITUTION:A release sheet, such as paper or film, is brought into tight contact with the surface of an emulsion film during or after diffusion transfer development and thereafter, the emulsion film 3 is removed together with the release sheet 2, by which the planographic printing plate is produced. The processing method which eliminates need for using the washing hot water in removing the residual emulsion films, is simplified in processing and has no possibility of polluting the environment is thus established. |
