| 摘要 |
<p>Disclosed are a planographic printing plate material and a planographic printing plate preparing process, the planographic printing plate material comprising a support and provided thereon, an image formation layer containing a colorant (a) having an absorption band in a wavelength region of from 700 to 1200 nm, a polymerization initiator (b) and a polymerizable ethylenically unsaturated compound (c), wherein the polymerization initiator (c) is a compound represented by the following formula (1), €ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒFormula (1)€ƒ€ƒ€ƒ€ƒ€ƒR 1 -CX 2 -(C=O)-R 2</p> |
