| 摘要 |
<p>An activator-stabilizer precursor which comprises a certain acylhydrazlne which releases a base moiety upon being heated to a temperature above about 130.degree.C provides improved heat developable and heat stabilizable photographic materials comprising, in binder, and in reactive association, (a) a photosensitive silver salt, (b) a photosensitive silver salt developing agent, and (c) a stabilizing concentration Or the described activator-stabilizer precursor having an acid portion and a base portion. The heat developable and heat stabilizable photographic element provides essential freedom from visual crystal formation in the processed photographic element. After imagewise exposure, a developed and stabilized image can be produced in the photoeraphic element by heating the element to processing temperature.</p> |
