(19)
(11) EP 0 724 190 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
07.08.1996 Bulletin 1996/32

(43) Date of publication A2:
31.07.1996 Bulletin 1996/31

(21) Application number: 96200180.6

(22) Date of filing: 26.01.1996
(51) International Patent Classification (IPC)6G03C 1/005, G03C 7/413
(84) Designated Contracting States:
DE FR GB

(30) Priority: 30.01.1995 US 380544
20.04.1995 US 425522
06.06.1995 US 466489

(71) Applicant: EASTMAN KODAK COMPANY
Rochester, New York 14650-2201 (US)

(72) Inventors:
  • Szajewski, Richard P., c/o Eastman Kodak Co.
    Rochester, New York 14650-2201 (US)
  • Buchanan, John M., c/o Eastman Kodak Co.
    Rochester, New York 14650-2201 (US)
  • Gordon, Stuart T., c/o Eastman Kodak Co.
    Rochester, New York 14650-2201 (US)

(74) Representative: Baron, Paul Alexander Clifford et al
Kodak Limited Patent Department Headstone Drive
Harrow Middlesex HA1 4TY
Harrow Middlesex HA1 4TY (GB)

   


(54) Method of processing originating photographic elements containing tabular grain emulsions


(57) This invention relates to a rapid access image forming process for high sensitivity color photographic elements comprising the step of contacting an imagewise exposed camera speed color photographic element with a developing solution wherein:

(A) the color photographic element comprises a support and, coated on the support, at least one radiation sensitive emulsion layer having in reactive association an image dye forming coupler and within which at least 50% of total grain projected area is accounted for by tabular grains each

(1) bounded by {100} major faces having adjacent edge ratios of less than 10;

(2) having an aspect ratio of at least 2; and

(3) comprising at least 50 mol % silver chloride;

(B) the contact time of the photographic element with the developing solution is between 5 and 150 seconds; and

(C) the developing solution has:

(1) a temperature is from 25 to 65 °C;

(2) bromide ion at a concentration from 0.25 to 50 mmol/liter;

(3) a color developing agent at a concentration from 1 to 200 mmol/liter; and

(4) a ratio of developing agent concentration to bromide ion concentration of between 60:1 to 0.5:1; and

(5) a pH of from 9 to 12; and wherein

(D) the camera speed color photographic element exhibits a sensitivity of at least ISO 25.







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