| abstract |
Provided is a negative lithographic printing plate precursor capable of laser writing, having high sensitivity and excellent printing durability, and further suppressing the removal of a photosensitive layer. A photosensitive layer containing a polymerization initiator, a polymerizable compound and a binder polymer and a protective layer are sequentially laminated on a substrate, and the photosensitive layer is represented by the following general formula (I). A negative lithographic printing plate precursor comprising: a first binder polymer containing a repeating unit; and a second binder polymer having a carboxyl group and a crosslinkable group in the side chain and a polyurethane skeleton in the main chain. (In the formula (I), R 1 represents H or CH 3 , R 2 includes two or more atoms selected from C, H, O, N and S, and a linking group having 2 to 82 atoms, A represents O or —NR 3 —, R 3 represents H or a hydrocarbon group having 1 to 10 carbon atoms, and n represents 1 to 5). [Selection figure] None |