Photothermographic material
The present invention provides a photothermographic material including a support having disposed on one surface thereof at least one image-forming layer containing a binder, an organic silver salt, a reducing agent for reducing silver ions, an organic polyhalogen compound and a photosensitive silver halide, wherein the photosensitive silver halide has a silver iodide content ranging from 10 mol % to 100 mol %. The silver halide further contains at least one metal selected from a first metal group and one metal selected from a second metal group, with a proviso that none of the at least one metal selected from the first metal group and the at least one metal selected from the second metal group are the same.
1 - 20 . (canceled)
21 . A photothermographic material comprising a support having disposed on one surface thereof at least one image-forming layer containing a binder, an organic silver salt, a reducing agent for reducing silver ions, an organic polyhalogen compound represented by the following formula (H) in the range of 1×10 −4 mol to 0.8 mol per mol of the organic silver salt:
Q-(Y)n-C(Z 1 )(Z 2 )X Formula (H)
wherein, Q represents an alkyl group, an aryl group, or a heterocyclic group; Y represents a divalent linking group; n represents 0 or 1; Z 1 , and Z 2 each independently represent a halogen atom; and X represents a hydrogen atom or an electron attracting group;
and a photosensitive silver halide, wherein the photosensitive silver halide has a silver iodide content ranging from 10 mol % to 100 mol %, and said material is irradiated with a laser beam and further comprises at least one compound represented by the following formula (1) in the range of from 1×10 −4 mol to 5×10 −1 mol per mol of the silver halide:
wherein Z represents a group of atoms to form a 5- or 6-membered heteroaromatic ring containing at least two nitrogen atoms; and
R represents a hydrogen atom, an alkyl group, an aralkyl group, an alkoxy group or an aryl group.
22 . The photothermographic material according to claim 21 , wherein a grain size of the photosensitive silver halide ranges from 5 nm to 100 nm.
23 . The photothermographic material according to claim 21 , wherein the photosensitive silver halide contains a grain which is formed and chemically sensitized under conditions where the organic silver salt is not present.
24 . The photothermographic material according to claim 22 , wherein the photosensitive silver halide contains a grain which is formed and chemically sensitized under conditions where the organic silver salt is not present.
25 . The photothermographic material according to claim, 21 , wherein a silver iodide content of the photosensitive silver halide ranges from 40 mol % to 100 mol %.
26 . The photothermographic material according to claim 22 , wherein a silver iodide content of the photosensitive silver halide ranges from 40 mol % to 100 mol %.
27 . The photothermographic material according to claim 21 , wherein a silver iodide content of the photosensitive silver halide ranges from 90 mol % to 100 mol %.
28 . The photothermographic material according to claim 22 , wherein a silver iodide content of the photosensitive silver halide ranges from 90 mol % to 100 mol %.
29 . The photothermographic material according to claim 23 , wherein a silver iodide content of the photosensitive silver halide ranges from 90 mol % to 100 mol %.