| 摘要 |
PURPOSE:To obtain the above copying material which enables the long time maintenance of the processing capacity of a developer to be conducted and produces a waste liquid in a lesser amt. by removing org. coating layers by a washing stage. CONSTITUTION:The 2nd org. coating layer of the photosensitive copying material successively having the 1st photosensitive org. coating layer which is increased in alkaline water solubility by irradiation with active rays and the 2nd org. coating layer contg. a water insoluble high-polymer compd. having film formability on a base is formed by applying and drying emulsion of the high-polymer compd. The developer penetrates into the 2nd org. coating layer after image exposing, but the non-image parts are removed by the washing stage after the material is immersed into the developer which does not dissolve this layer. |
