PLANOGRAPHIC PRINTING PLATE

摘要

PROBLEM TO BE SOLVED: To provide a planographic printing plate which is composed of an aluminum sheet as its support and is improved in inking and plate wear during printing.

SOLUTION: The planographic printing plate which is composed of the aluminum sheet as its support and utilizes a silver complex salt diffusion transfer process has a specific polymer, i.e., a polymer which has a fluorine-containing aliphatic group and is insoluble in water and soluble in an alkaline in a physical development nucleus layer or between the physical development nucleus layer and a silver halide emulsion layer.

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