Patent ID: 6689547
Filing Date: 2004-02-10
Classification: G03C,Y10S

Abstract:
A photothermographic material that comprises a support having thereon one or more thermally-developable imaging layers comprising a binder and in reactive association, a photosensitive silver halide, a non-photosensitive source of reducible silver ions, and a reducing composition for said non-photosensitive source of reducible silver ions,wherein said one or more thermally-developable imaging layers further comprise one or more radiation absorbing substances that provide a total absorbance in said one or more thermally-developable imaging layers of greater than 0.6 and up to and including 3 at an exposure wavelength, said one or more radiation absorbing substances being chosen such that when they are incorporated into said one or more thermally-developable imaging layers to provide a total absorbance of from about 0.6 to about 1.2, the sensitivity loss is less than 0.4 per absorbance unit, wherein said sensitivity loss is the increase in the log of the exposure (in ergs/cm2) required to produce an image density of 1+Dmin.