DIRECT POSITIVE SILVER HALIDE PHOTOGRAPHIC EMULSION AND DIFFUSION TRANSFER TYPE SILVER HALIDE PHOTOGRAPHIC SENSITIVE MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide a diffusion transfer type silver halide photographic emulsion less liable to harmful effects such as specific desensitization, development inhibition and residual color and having high sensitivity.;SOLUTION: The diffusion transfer type silver halide photographic emulsion contains at least one compound of formula (I) (where D1 and D2 are each a dye chromophore, La is a linking group or a single bond; q1 and r1 are each an integer of 1-100; M1 is a counter ion equilibrated with an electric charge; and m1 is a number required to neutralize electric charges in each molecule).;COPYRIGHT: (C)2002,JPO