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2. 发明授权

US5279928A Method for processing a photothermographic element 失效
标题翻译：光热敏成像元件的处理方法
公开(公告)号：US5279928A
公开(公告)日：1994-01-18
申请号：US982926
申请日：1992-11-30
申请人： Edward L. Dedio , Gordon D. Young
发明人： Edward L. Dedio , Gordon D. Young
IPC分类号： G03C1/498 , G03C5/58 , G03C8/40
CPC分类号： G03C1/49881
摘要： A photothermographic element comprising a photosensitive silver halide, an organic silver salt and a reducing agent in concentrations such that imagewise exposure to actinic radiation generates from the silver halide a catalyst which accelerates an image-forming reaction between the organic silver salt and the reducing agent is processed by a method comprising the steps of (1) imagewise-exposing the element to actinic radiation to form a latent image therein, (2) subjecting the imagewise-exposed element to a first heating step at a temperature and for a time sufficient to intensify the latent image but insufficient to produce a visible image, and thereafter (3) subjecting the element to a second heating step at a temperature and for a time sufficient to produce a visible image. This method of "thermal latensification" serves to greatly reduce the significant speed losses that were heretofore encountered with photothermographic elements when considerable time was allowed to lapse between exposure to actinic radiation and generation of the visible image by heating.
摘要翻译：含有感光卤化银，有机银盐和还原剂的光热成像元件，其浓度使得从卤化银产生的光化辐射的图像曝光促进有机银盐和还原剂之间的成像反应的催化剂是通过包括以下步骤的方法处理：（1）将元件成像曝光于光化辐射以在其中形成潜像，（2）使图像曝光元件在足以强化的温度和时间下进行第一加热步骤潜像，但不足以产生可见图像，然后（3）在足以产生可见图像的温度和时间下对元件进行第二加热步骤。这种“热延迟”的方法用于大大降低光热敏成像元件在暴露于光化辐射之间经过相当长的时间并通过加热产生可见光图像之前遇到的显着的速度损失。

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