| abstract |
An on-press development type lithographic printing plate precursor for newspaper printing which does not cause edge smearing and a method for producing the same are provided. An infrared absorbing dye, a radical polymerization initiator, a radical polymerizable compound, and a polymer compound having a polyoxyalkylene chain as a side chain are contained on a support, and printing ink and / or wet is formed on a cylinder of a printing machine. A lithographic printing plate precursor having an image recording layer that can be developed with water, and obtained by treating a region within 1 cm from the edge of the lithographic printing plate precursor with a liquid containing an organic solvent and a water-soluble resin. A lithographic printing plate precursor for newspaper printing. [Selection figure] None |