| abstract |
PROBLEM TO BE SOLVED: To provide a lithographic printing plate precursor and a lithographic printing method having excellent developability on a printing press, high sensitivity and high printing durability. An ink or dampening solution having an image forming layer containing a photothermal conversion agent, a compound capable of generating an acid or a radical by heat and a compound capable of addition polymerization by the acid or radical on a hydrophilic support. A lithographic printing plate precursor capable of being developed on the upper surface, wherein the image forming layer further contains a filler, and the lithographic printing plate precursor is image-exposed and attached to a printing machine with ink or fountain solution. , Removing the image forming layer in the unexposed area, making a plate, and printing. [Selection figure] None |