Photothermographic material and image forming method using same

摘要

A photothermographic material comprising a support, an image-forming layer, a non-photosensitive intermediate layer A, and an outermost layer, wherein the image forming layer, the non-photosensitive intermediate layer A, and the outermost layer are disposed on the support in this order; the image-forming layer comprises a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent, a polyhalogen compound, and a binder; the non-photosensitive intermediate layer A comprises a binder in which a hydrophobic polymer constitutes 50% by mass or more of the binder; and the binder in the image-forming layer comprises a copolymer including a monomer represented by formula (M-1) CH₂-CR⁰¹-CR⁰²-CH₂ as a copolymerization component, in formula (M-1), R⁰¹ represents a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, a halogen atom, or a cyano group; and R⁰² represents an alkyl group having 1 to 6 carbon atoms, a halogen atom, or a cyano group.