| abstract |
Disclosed is a light sensitive planographic printing plate material comprising a support and provided thereon, a light sensitive layer, wherein the light sensitive layer contains a polymerizable ethylenically unsaturated compound, a photopolymerization initiator, a polymeric binder, a sensitizing dye, and a copolymer having a first unit represented by formula (1), a second unit represented by formula (2) and a third unit represented by formula (3), Formula (1) Formula (2) |