- 专利标题: Silver halide photographic material
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申请号: EP88114958.7申请日: 1988-09-13
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公开(公告)号: EP0307868A3公开(公告)日: 1990-08-08
- 发明人: Takamuki, Yasuhiko , Uesawa, Yutaka
- 申请人: KONICA CORPORATION
- 申请人地址: 26-2, Nishishinjuku 1-chome, Shinjuku-ku Tokyo 160 JP
- 专利权人: KONICA CORPORATION
- 当前专利权人: KONICA CORPORATION
- 当前专利权人地址: 26-2, Nishishinjuku 1-chome, Shinjuku-ku Tokyo 160 JP
- 代理机构: Henkel, Feiler, Hänzel & Partner
- 优先权: JP233997/87 19870918; JP254118/87 19871008
- 主分类号: G03C1/87
- IPC分类号: G03C1/87 ; G03C1/84
摘要:
A silver halide photographic material that has a photographic emulsion layer formed on a support comprising paper base coated with a resin on both sides is disclosed. In this photographic material, a hydrophilic colloidal layer containing a material that has an absorption in the wavelength region in which the photographic emulsion layer has sensitivity is provided between the emulsion layer and the support. The surface of the support on the side where the hydrophilic colloidal layer is to be coated has a center-line-average roughness, Ra, of 0.3 - 1.5 µm, and the thickness of this hydrophilic colloidal layer is at least one half the center-line-average roughness, Ra, of the surface of said support. This photographic material has the advantage of imparting improved sharpness and a high degree of whiteness, as well as high sensitivity.
公开/授权文献
- EP0307868A2 Silver halide photographic material 公开/授权日:1989-03-22
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