| 摘要 |
PURPOSE:To obtain a planographic printing plate having high ink accepting property and improved contamination of the base in the production method of a planographic printing plate by silver complex salt diffusion transfer method. CONSTITUTION:This planographic printing material having a laminar structure for a silver complex salt diffusion transfer method has at least a layer having physical developing nuclei and a silver halide emulsion layer on a supporting body. This material contains a compd. expressed by formula. In formula, R<1>, R<2>, R<3>, R<4> are substd. or unsubstd. alkyl groups or aryl groups, n is 1 or 2, and X is an acid anion. |
