| 摘要 |
<P>PROBLEM TO BE SOLVED: To enable rapid customer support in a planographic printing plate applying a silver complex salt diffusion transfer process by imparting magnetic recording performance to the rear face of the planographic printing plate and to provide a planographic printing plate excellent in printing performance and free of losing of magnetic recording performance in a developing step. <P>SOLUTION: In a planographic printing plate having on a support at least a silver halide emulsion layer and a physical developing nucleus layer, a back coat layer comprising a powdery magnetic material and a water-dispersible polymeric latex is disposed on the rear face of the planographic printing plate. <P>COPYRIGHT: (C)2004,JPO |
