发明名称 Light-sensitive silver halide material for making direct-positive images
摘要 Photographic light-sensitive silver halide material for forming direct-positive images comprising a support, a light-sensitive emulsion layer comprising unfogged internal latent image-type silver halide grains dispersed in a hydrophilic colloid binder and comprising a development nucleator, and at least one protective hydrophilic colloid layer, wherein said light-sensitive emulsion comprises at least one compound that during the development of said material in a surface developer provides iodide ions, the weight ratio of the hydrophilic colloid binder of said emulsion layer to silver halide expressed as silver nitrate ranging from 0.4:1 to 3:1, and said protective hydrophilic colloid layer having a thickness in dry state of 1 to 3 mu m. The present invention also relates to a method for making direct-positive images with such a photographic light-sensitive silver halide material.
申请公布号 US5166043(A) 申请公布日期 1992.11.24
申请号 US19910732764 申请日期 1991.07.19
申请人 AGFA-GEVAERT, N.V. 发明人 DE PRIJCKER, JOZEF P.
分类号 G03C1/42;G03C1/485;G03C1/76;G03C5/50 主分类号 G03C1/42
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