(19)
(11) EP 0 507 092 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
30.12.1992 Bulletin 1992/53

(43) Date of publication A2:
07.10.1992 Bulletin 1992/41

(21) Application number: 92103658.8

(22) Date of filing: 04.03.1992
(51) International Patent Classification (IPC)5G03C 7/305
(84) Designated Contracting States:
DE FR GB NL

(71) Applicant: KONICA CORPORATION
Tokyo 163 (JP)

(72) Inventors:
  • Shimba, Satoru
    Hino-shi, Tokyo (JP)
  • Michiue, Kenji
    Hino-shi, Tokyo (JP)
  • Yabuuchi, Katsuya
    Hino-shi, Tokyo (JP)
  • Tobita, Keisuke
    Hino-shi, Tokyo (JP)

(74) Representative: Türk, Gille, Hrabal, Leifert 
Brucknerstrasse 20
40593 Düsseldorf
40593 Düsseldorf (DE)


(56) References cited: : 
   
       


    (54) Silver halide color photographic light-sensitive material


    (57) A silver halide color photographic material light-sensitive is disclosed. The light-sensitive material comprises a red-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer and a blue-sensitive silver halide emulsion layer. The light-sensitive material satisfise the following requirements:

    (1) at least one of the red-sensitive emulsion layer and the green-sensitive emulsion layer comprises two or more emulsion sub-layers,

    (2) an emulsion sub-layer having the highest speed among the emulsion sub-layers contains silver halide grains having a volume average size of from 0.20 µm to 0.55 µm,

    (3) the light-sensitive material contains a diffusible DIR compound capable of splitting of a development inhibitor or its precursor which has a diffusibility not less than 0.34, and the amount of the DIR compound satisfise the following equation:





    wherein A is the sum of molar amount of the diffusible DIR compound contained in one square meter of the light-sensitive material, and B is sum of the surface area of light-sensitive silver halide emulsion grains contained in one square meter of of the light-sensitive material represented by cm². The light-sensitive material is improved in graininess, sharpness and color reproducibility.







    Search report