| 摘要 |
PURPOSE:To provide a photosensitive planographic printing impression by which inking becomes speedy and which has excellent printing withstanding force in a silver complex salt diffusion transfer process. CONSTITUTION:In a planographic printing form constituted in such a way that anodized aluminium is used as a carrier and a physical development core layer and a photosensitive sliver halide photographic emulsion layer are provided thereon, the planographic printing form is characterized in that alkaline physical development core solution between pH11.5 and pH13.0 is used. Thereby, the planographic printing form, by which inking becomes excellent and which has extremely high printing withstanding force, can be provided. |
