| abstract |
Provided are a positive type planographic printing plate precursor including: a support; and an image recording layer that contains: a polymer compound 1 having a linking group represented by Formula A-1 in a main chain thereof; a polymer compound 2-1 having at least one of a constitutional unit represented by Formula S-1 or a constitutional unit represented by Formula S-2, or a polymer compound 2-2 having a constitutional unit represented by Formula EV-1 and a constitutional unit represented by Formula EV-2; and an infrared absorbent, on the support, and a method of preparing a planographic printing plate. |