ORIGINAL PLATE OF PLANOGRAPHIC PRINTING PLATE

摘要

PROBLEM TO BE SOLVED: To provide an excellent original plate of a planographic printing plate excellent in uniformity of an image forming layer, exhibiting high-contrast image forming property without lowering sensitivity and having good ink receptivity. SOLUTION: In the original plate having an image forming layer containing a high molecular compound on a base, the high molecular compound is a specified fluoroaliphatic group-containing copolymer.