Patent ID: 7146909
Filing Date: 2006-12-12
Classification: B41C

Abstract:
1. An image forming material comprising a support and a layer, wherein the layer comprises a compound that is represented by formula (1) and changes from a colorless state to a colored state by the effect of heat: wherein R 1 to R 4 each independently represents a hydrogen atom, an alkyl group, an aryl group, an alkenyl group, an alkynyl group, a halogen atom, an acyl group, an alkyloxy group, an alkenyloxy group, an alkynyloxy group, an aryloxy group, a sulfonyl group, a sulfinyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, an alkylthio group, an arylthio group, an acyloxy group, a sulfonyloxy group, a carbamoyloxy group, an amino group, a carbamoyl group, a sulfamoyl group, a hydroxyl group, a nitro group, a cyano group, a carboxyl group or a heterocyclic group.