Patent ID: 8048607

Claim:
An image forming material, comprising an image recording layer including a compound represented by the following formula (3) or (4) in an amount of 0.1 to 30 wt % with respect to the total solid content in the image recording layer and a polymerizable compound, wherein, in the formulae (3) and (4), R 1 , R 2 , R 5 , R 6 , R 9 and R 10 each independently represent a hydrogen atom or a hydrocarbon group; R 3 and R 4 each independently represent a hydrogen atom, a hydrocarbon group, a halogen atom, an alkoxy group, an aryloxy group, an amino group, a carbonyl group, or a silyl group; R 3 and R 4 may bond to each other to form a ring; X represents —N(Aryl) 2 ; Aryl represents an aryl group; Y 1 and Y 2 may be the same as or different from each other, and each independently represent a dialkylmethylene group; R 7 and R 8 each independently represent a hydrocarbon group; Z 1 and Z 2 each independently represent an aromatic or heteroaromatic ring that may have a substituent; A − represents a counter ion that is present when neutralization of electric charge is necessary; and each of m, n, o, and p independently denotes an integer of from 0 to 2, wherein when the image forming material is exposed to laser radiation, a hue and/or brightness of an exposed region changes.