发明授权
US5246823A Photographic element having improved antihalation layer containing
tabular silver grains
失效
具有改进的含有片状银颗粒的防光晕层的照相元件
- 专利标题： Photographic element having improved antihalation layer containing tabular silver grains
- 专利标题（中）： 具有改进的含有片状银颗粒的防光晕层的照相元件
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申请号： US699755申请日： 1991-05-14
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公开(公告)号： US5246823A公开(公告)日： 1993-09-21
- 发明人: David C. Shuman
- 申请人： David C. Shuman
- 申请人地址： NY Rochester
- 专利权人： Eastman Kodak Company
- 当前专利权人： Eastman Kodak Company
- 当前专利权人地址： NY Rochester
- 主分类号： G03C1/825
- IPC分类号： G03C1/825
摘要：
A photographic element according to the invention includes a reflective support, one or more photosensitive silver halide emulsion layers, and a colored antihalation layer interposed between the support and the photosensitive layers. The antihalation layer comprises thin grains of silver in the form of platelets having a thickness of up to about 20 nm. The platelets are distributed in a suitable matrix or colloidal medium such as gelatin. The thinness of the platelets allows the antihalation layer to be formed effectively at lower silver levels.
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