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US 7,018,790 B2Granted
Photothermographic imaging material and method for forming image
AssigneeKonica Minolta Holdings, Inc.
InventorsHiroshi Kashiwagi, Narito Goto
Life of this patent
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Abstract
A photothermographic imaging material including a support; an image forming layer containing an organic silver salt, a photosensitive silver halide, a binder and a silver ion reducing agent, the image forming layer being provided on the support; and a cyan coloring leuco dye. The photosensitive silver halide contains silver halide grains having a mean particle size of 10 to 50 nm, and the silver ion reducing agent is a compound represented by the following Formula (A-3)
Claims11
A photothermographic imaging material, comprising:
- a support;
- an image forming layer containing an organic silver salt, a photosensitive silver halide, a binder and a silver ion reducing agent, the image forming layer being provided on the support;
- and
- a cyan coloring leuco dye,
- wherein the photosensitive silver halide contains silver halide grains having a mean particle size of 10 to 50 nm, and the silver ion reducing agent is a compound represented by the following Formula (A-3),
- wherein the X31 represents a chalcogen atom or a CHR, the R representing a hydrogen atom, a halogen atom, an alkyl group or an alkenyl group;
- each R33 represents an alkyl group, at least one R33 being a secondary or tertiary alkyl group;
- the each R34 represents a hydrogen atom or a group capable of being substituted on a benzene ring;
- each Q20 represents a group capable of being substituted on a benzene ring;
- and each of the m2 and the n2 represents an integer of 0 to 2.
7 more elements
Dependencies are inferred from the claim text.