| 摘要 |
PROBLEM TO BE SOLVED: To provide a lithographic printing plate precursor for a thermal negative plate, on which a photosensitive layer is disposed, the photosensitive layer having high sensitivity and excellent FM screening reproducibility and moisture resistance, and having excellent printing durability or chemical resistance in a minute image part.SOLUTION: A photosensitive composition is provided, which comprises at least an alkali-soluble resin, a silane coupling agent having an ethylenic double bond, a piperidine derivative compound, an infrared absorbent, a radical polymerizable initiator and a polymeric compound having an ethylenic double bond. The alkali-soluble resin includes at least a monomer unit expressed by formula (I). |
