abstract |
A photosensitive resin composition excellent in chemical resistance and printing durability of the obtained lithographic printing plate, having good solubility in an aqueous alkali solution in the non-image area of the obtained lithographic printing plate precursor, and the above photosensitive resin An object is to provide a lithographic printing plate precursor using the composition, a method for preparing the lithographic printing plate, and a novel polymer compound. The photosensitive resin composition of the present invention has an amine bond or a quaternary ammonium salt bond, and at least one bond selected from the group consisting of a urea bond, a urethane bond, and a carbonate bond in the main chain, and And a polymer compound having a sulfonamide group or a phenolic hydroxyl group in the main chain and / or side chain and an infrared absorbing material. |