PROCESSING METHOD FOR LITHOGRAPHIC PLATE

摘要

PURPOSE:To provide a processing method for a lithographic plate which is excellent in image quality and press-resistance and uses an aluminium plate as a support by utilizing silver complex salt diffusion transfer method. CONSTITUTION:In a lithographic plate having a physical development nucleus between a surface roughened and anodic oxidized aluminium support and a silver halide emulsion layer, development processing is conducted in the presence of a compound having at least respectively one amino group and carboxyl group.