Photographic diffusion transfer color process and film unit for use therein
    2.
    发明授权
    Photographic diffusion transfer color process and film unit for use therein 失效
    摄影扩展转印彩色工艺及其使用的薄膜单元

    公开(公告)号:US3661585A

    公开(公告)日:1972-05-09

    申请号:US3661585D

    申请日:1970-01-19

    Applicant: POLAROID CORP

    CPC classification number: G03C8/48

    Abstract: The present invention relates, in general, to a permanently structured composite photographic film unit, adapted to provide a color diffusion transfer image, which includes an opaque layer; a photosensitive silver halide layer having associated dye transfer image-forming material; a processing composition permeable layer comprising a particulate dispersion of visible light-reflecting inorganic pigment possessing a first mean particle size, which transmits actinic radiation incident on the layer effective to expose the photosensitive silver halide layer, and which dispersion upon contact with alkaline processing composition provides a dispersion of the pigment possessing a second mean particle size, effective to reflect incident actinic radiation and to thereby mask dye transfer image-forming material associated with the photosensitive silver halide layer; a polymeric layer dyeable by the dye transfer image-forming material; a transparent layer; and a rupturable container retaining alkaline processing composition for distribution between the dyeable polymeric layer and next adjacent photosensitive silver halide layer.

    Abstract translation: 本发明一般涉及一种永久性结构复合摄影胶片单元,适用于提供包括不透明层的彩色扩散转印图像; 具有相关联的染料转移成像材料的光敏卤化银层; 处理组合物渗透层,其包含具有第一平均粒径的可见光反射无机颜料的颗粒分散体,其透射入射在有效暴露感光卤化银层的层上的光化辐射,以及与碱处理组合物接触时的分散体 具有第二平均粒径的颜料的分散体,有效地反射入射光化辐射,从而掩蔽与感光卤化银层相关的染料转移成像材料; 由染料转移成像材料可染色的聚合物层; 透明层; 以及保持用于在可染色聚合物层和下一个相邻的感光卤化银层之间分布的碱性处理组合物的可破裂的容器。

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