Photothermographic elements having improved post-processing stabilty are described. These elements comprise a support bearing at least one photosensitive, image-forming photothermographic-emulsion layer comprising: (a) a photosensitive silver halide; (b) a non-photosensitive, reducible silver source; (c) a reducing agent for said non-photosensitive, reducible silver source, (d) a binder; and (e) a compound capable of releasing a post-processing stabilizer having a nucleus of the formula: ##STR1## wherein: A represents any monovalent group for which the corresponding compound AH functions as a post-processing stabilizer.
本文描述了具有改善后处理稳定性的光热成像元件。这些元件包括支撑体,该支撑体承载至少一个感光、成像的光热成像乳胶层,该乳胶层包括:(a)感光性
银卤化物;(b)非感光性可还原
银源;(c)还原剂,用于还原非感光性可还原
银源;(d)粘合剂;以及(e)一种能够释放具有以下式子核的后处理稳定剂的化合物:##STR1## 其中:A表示任何单价基团,其相应的化合物AH作为后处理稳定剂。