abstract |
PROBLEM TO BE SOLVED: To provide a planographic printing plate precursor capable of image recording with an infrared laser and developed on-press after image recording, and has excellent on-press developability, printing stain resistance, printing durability and stability over time. Provide a lithographic printing plate precursor. SOLUTION: (1) a polymer resin layer having a hydrophilic substituent that can be adsorbed to a support on a rough surface and / or a porous support, and (2) oily ink and aqueous component can be removed. A lithographic printing plate precursor having an image recording layer in this order, wherein the contact angle of the polymer resin layer surface after coating on a support is from 50 ° to 100 °. [Selection figure] None |