| abstract |
The present invention provides a planographic printing plate precursor having an intermediate layer containing a polymer having a structure represented by the formula (I) at its side chain and an infrared laser photosensitive positive recording layer, disposed on a support in this order. In the formula (I), Y represents a connecting group connected with a main chain of the polymer, R 1 represents a hydrogen atom or a hydrocarbon group and R 2 represents a divalent hydrocarbon group. |