| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a processing method of a lithographic printing plate using a complex salt diffusion transfer method in printing resistance, in particular, improving the plate cleaner resistance, and having superior running properties in development processing. <P>SOLUTION: The processing method of the lithographic printing plate uses the complex salt diffusion transfer method, composed of a physical development core layer on a roughened and positive pole-oxidized aluminum support and a photosensitive silver halide emulsion layer. The processing method processes the lithographic printing plate containing a hydrophilic binder of 75 mass% or higher to silver halide converted into silver nitride, including hydroquinone of 0.05-0.5 mole per mole of silver halide and nitrogen heterocycle of 1-20 g in a skeleton and containing an organic pigment which does not have azo-skeleton with a developer containing hydroquinone of 0.025-0.15 per liter. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
