(19)
(11) EP 0 556 716 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
10.05.1995 Bulletin 1995/19

(43) Date of publication A2:
25.08.1993 Bulletin 1993/34

(21) Application number: 93102126.5

(22) Date of filing: 11.02.1993
(51) International Patent Classification (IPC)5G03C 7/413
(84) Designated Contracting States:
DE FR GB NL

(30) Priority: 20.02.1992 JP 69296/92

(71) Applicant: KONICA CORPORATION
Tokyo 160 (JP)

(72) Inventor:
  • Satake, Wataru
    Hino-shi, Tokyo (JP)

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


(56) References cited: : 
   
       


    (54) Color developer for silver halide color photographic light-sensitive material


    (57) Disclosed is a color developer for a silver halide color photographic light-sensitive material comprising at least one compound represented by Formula 1, and a color developing agent in an amount not less than 0.02 mol/I, and a compound selected from the group consisting of an aromatic sulfonic acid and an aromatic compound having a -O-S03-R group in an amount not less than 2.5 mol per mol of a color developing agent: wherein R represents a hydrogen atom, a sodium atom, a potassium atom, an ammonium group or an lithium atom:


    wherein A and B each represent a linear or branched alkylene group, n and m each represent an integer of 0 to 100, provided that both A and B are not 0, and A or B is a linear or branched alkylene group having 3 or more carbon atoms when n + m = 1.
    The color developer improves the maintenance efficiency of an automatic processor.





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