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    • 3. 发明授权
    • Diffusion transfer products with two timing layers for production of
transparencies
    • 扩散转移产品具有两个时间层,用于生产透明胶片
    • US4359517A
    • 1982-11-16
    • US259102
    • 1981-04-30
    • Gerard J. Bourgeois
    • Gerard J. Bourgeois
    • G03C8/54G03C8/52G03C8/56G03C1/40G03C5/54
    • G03C8/52G03C8/56
    • Image-receiving elements and photographic diffusion transfer products providing diffusion transfer transparency images are described. The image-receiving elements include a transparent support carrying, in sequence, an acid-reacting reagent; a first polymeric timing layer possessing decreasing alkaline solution permeability with increasing temperature; a second timing layer comprising cellulose acetate; and an alkaline solution-permeable and dyeable polymeric image-receiving layer comprising a graft polymer having a polymeric backbone and grafted thereto moieties which provide mordant capability. The utilization in the image-receiving elements of the aforedescribed first and second timing layers permits the provision of elements which can be effectively processed over a range of processing temperatures and which are adapted to the provision of transparencies which exhibit desired images without the distracting or otherwise objectionable image defects associated with reticulation.
    • 描述了提供扩散转移透明度图像的图像接收元件和照相扩散转移产物。 图像接收元件包括依次携带酸反应试剂的透明载体; 第一聚合时序层随温度升高而具有降低的碱溶液渗透性; 包含醋酸纤维素的第二时间层; 以及碱性溶液可渗透和可染色的聚合物图像接收层,其包含具有聚合物主链并接枝到其上的接枝聚合物,其提供媒染能力。 在上述第一和第二定时层的图像接收元件中的利用允许提供能够在一定范围的加工温度下有效处理的元件,并且适用于提供展现所需图像的透明胶片,而不会分心或以其他方式 与网状相关的令人反感的图像缺陷。