Patent ID: 6458519
Filing Date: 2002-10-01
Classification: G03C

Abstract:
A photothermographic material comprising a support, silver halide, an organic silver salt and a reducing agent, wherein the photothermographic material meets the following requirement (1):âˆ’15<100Ã—(S1-S0)/S0<15â€ƒâ€ƒrequirement (1) wherein S0 represents a sensitivity of the photothermographic material heat-developed after being allowed to stand at 23Â° C. and 50% RH for a period of 3 days and S1 represents a sensitivity of the photothermographic material heat-developed after being allowed to stand at 55Â° C. and 80% RH for a period of 3 days, provided that the sensitivity is represented by the logarithm of a reciprocal of exposure giving a density of 2.5 obtained when the photothermographic material is exposed and heat-developed at 117Â° C. for 20 sec.