Silver halide photographic material

Details Silver halide photographic material Silver halide photographic material

G - Physics

03

C

96/147

G03C 7/34 (2006.01) C07C 233/60 (2006.01) G03C 7/388 (2006.01)

Patent

CA 1282626

ABSTRACT OF THE DISCLOSURE A silver halide photographic material having one or more silver halide emulsion layers formed on a support is disclosed wherein at least one of said silver halide emulsion layers contains at least one cyan coupler of formula (I) dispersed therein with the aid of a high- boiling organic solvent having a dielectric constant of not more than 6.0: Image ( I ) (wherein R1 is a straight- or branched-chain alkyl group having 2 to 4 carbon atoms; X is a hydrogen atom or a group capable of leaving upon coupling reaction; and R2 is a ballast group). - 62 - The table shows that samples 16 to 19 prepared according to the present invention were far superior to comparative samples 13 to 15 in terms of resistance to light discoloration, dark discoloration and Y-stain under exposure to light. - 58 -

477859

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