Patent ID: 7112401
Filing Date: 2006-09-26
Classification: G03C,Y10S

Abstract:
1. A photothermographic material comprising a support body provided on or above at least one surface thereof with an image forming layer, containing at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent and binder, and a non-photosensitive layer, wherein: 50% or more of the binder in the image forming layer is hydrophilic binder; a ratio of the non-photosensitive organic silver salt to the hydrophilic binder is from 0.6 to 1.4 by mass; 70% or more of binder in the non-photosensitive layer is hydrophilic binder; the photothermographic material includes at least one of the compounds represented by the Formulas I or II below, wherein Q represents an atomic group necessary for forming a 5 or 6 member imide ring, wherein R 5 (s) independently represent a hydrogen atom, an alkyl group, a cycloalkyl group, an alkoxy group, an alkylthio group, an arylthio group, a hydroxy group, a halogen atom, or N(R 8 R 9 ) group, where R 8 and R 9 each independently represent a hydrogen atom, an alkyl group, an aryl group, a cycloalkyl group, an alkenyl group or a hetero ring; r is 0, 1 or 2; R 8 and R 9 can be linked together to form a substituted or unsubstituted 5 to 7 member hetero ring; 2 of the R 5 groups can be linked together to form an aromatic, hetero aromatic, alicyclic ring or condensed hetero cyclic ring; X represents O, S, Se or N(R 6 ), were R 6 is a hydrogen atom, alkyl group, aryl group, cycloalkyl group, alkenyl group or heterocyclic group.