LITHOGRAPHIC PRINTING MASTER PLATE, THE PRINTING PLATE MAKING METHOD, AND THE LITHOGRAPHIC PRINTING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a lithographic printing master plate, its printing plate making method and the lithographic printing method of on-press development type or of non-processed (non-development) type that enable high visibility burn-print images after exposure.

SOLUTION: A lithographic printing master plate comprises support and a layer containing a compound represented by the formula having a specific structure that is discolored by heat or a photochromic compound, and a lithographic printing method using the lithographic printing master plate is provided.

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