Patent ID: 7314706
Filing Date: 2008-01-01
Classification: G03C,Y10S

Abstract:
1. A photothermographic material comprising an image forming layer comprising at least a photosensitive silver halide, a non-photosensitive organic silver salt, and a reducing agent for the organic silver salt on one side of a support, wherein the photothermographic material further comprises, on a side of the support opposite the image forming layer, a first non-photosensitive layer which contains a dye fixing agent for a water-soluble dye, a second non-photosensitive layer which is disposed between the support and the first non-photosensitive layer, and a third non-photosensitive layer which forms an outermost layer, in which at least one layer among the first, second, and third non-photosensitive layers contains the water-soluble dye, wherein 1) the dye fixing agent is a polymer compound containing a vinyl monomer unit having a tertiary amino group or a quaternary ammonio group represented by any one of the following formulae (FX-1) to (FX-4): wherein R wherein R wherein R wherein R wherein M represents a metal atom; R 1 , R 4 , R 5 , R 8 , R 9 , R 12 , R 13 , and R 16 each independently represent a hydrogen atom or a substituent; four or more from among R 1 , R 4 , R 5 , R 8 , R 9 , R 12 , R 13 , and R 16 is an electron-attracting group represented by formula (II); wherein L 1 represents a group selected from ** —SO 2 — * , ** —SO 3 — * , ** —SO 2 NR N — * , ** —SO— * , ** —CO— * , ** —CONR N — * , ** —COO— * , ** —COCO— * , ** —COCO 2 — * , or ** —COCONR N — * ; ** denotes a bond with a phthalocyanine skeleton at this position; * denotes a bond with R 17 at this position; R N represents one selected from a hydrogen atom, an alkyl group, an aryl group, a heterocyclic group, an acyl group, an alkoxycarbonyl group, a carbamoyl group, a sulfonyl group, or a sulfamoyl group; and R 17 represents one selected from a hydrogen atom, an alkyl group, an aryl group, or a heterocyclic group; R 2 , R 3 , R 6 , R 7 , R 10 , R 11 , R 14 , and R 15 each independeently represent a hydrogen atom or a substitituent.