| 摘要 |
PROBLEM TO BE SOLVED: To provide a photopolymerizable composition having both high sensitivity and excellent shelf stability in a photoradical-polymerizing composition having the highest sensitivity on which a hopeful view is taken in image forming technique, and is suitable for the use of a lithographic printing plate material which can directly make a pronging plate from digital data stored in a computer, etc., particularly by recording using a solid-state laser and a semiconductor laser which emit ultraviolet light, visible light or infrared light. SOLUTION: The photopolymerizable composition is characterized by containing photosensitizing dye, a photopolymerization initiator, each having at least one specific structure, and a polymerizable compound having an unsaturated double bond. |
