Color photographic silver halide material with chloride-rich compact emulsion crystals, useful for images viewed in reflection or displays, contains heterocyclic disulfide with substituent having acid group

摘要

Color photographic silver halide material with base, blue-, green- and red-sensitive silver halide emulsion layer(s) containing yellow, magenta and cyan coupler(s) respectively, layer(s) in which over 50 % of the crystals contains bis(5-mercapto- or 5-amino-1,3,4-oxadiazol- or -thiadiazol-2-yl or 1,2,4-triazol-3-yl) disulfide(s) (I). Color photographic silver halide material with base, blue-, green- and red-sensitive silver halide (AgX) emulsion layer(s) containing yellow, magenta and cyan coupler(s) respectively, layer(s) in which at least 95 mole-% of the AgX is chloride (AgCl) and layer(s) in which over 50 % of the crystals, referred to total projected area, have aspect ratio less than 3, contains bis(5-mercapto- or 5-amino-1,3,4-oxadiazol- or -thiadiazol-2-yl or 1,2,4-triazol-3-yl) disulfide(s) of formula (I). X1O, NR2 or S; R1S-R3 or -NR4R5; R2H or R; R3R; R4H, R or acyl; R5R or acyl; R : an (un)substituted, (un)saturated aliphatic or cyclic group, which may contain heteroatoms, or an (un)substituted (hetero)aryl group; R2, R3, R5a group substituted with a carboxylic, sulfonic or phosphonic acid group or its salt in at least one case; R2R3 or R2R5 may : a group completing a 5-8-membered ring. An independent claim is also included for a process for producing the material. [Image].