Color photographic image formation method

• US 5,118,592 A
• Filed: 12/24/1991
• Issued: 06/02/1992
• Est. Priority Date: 10/03/1988
• Status: Expired due to Term

• Current Assignee: Fujifilm Corporation (Fujifilm Holdings Corporation)
• Original Assignee: Fuji Photo Film Co Limited (Fujifilm Holdings Corporation)
• Inventors: Hasebe, Kazunori
• Primary Examiner(s): McCamish, Marion E.
• Assistant Examiner(s): Dote, Janis L.
• Application Number:
  US07/814,038
• Time in Patent Office: 161 Days
• Field of Search: 430/382, 430/383, 430/380, 430/376, 430/467, 430/505, 430/963
• US Class Current: 430/376
• CPC Class Codes: G03C 7/30 Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials
• CPC Class Codes: G03C 7/3022 Materials with specific emulsion characteristics, e.g. thickness of the layers, silver content, shape of AgX grains
• CPC Class Codes: G03C 7/413 Developers
• CPC Class Codes: Y10S 430/164 Rapid access processing

Abstract

A method for forming an image, which comprises developing a silver halide color photographic material with a color developer containing at least one aromatic primary amine color developing agent, wherein said silver halide color photographic material comprises a silver chloride or silver chlorobromide emulsion having an average silver bromide content of not more than 10 mol % and containing substantially no iodide, with a mean grain size of an emulsion contained in the blue-sensitive layer thereof being controlled to 0.9 μm or smaller, silver halide to coupler ratio in said blue-sensitive layer ranges from 2 to 5 as a molar ratio, and said color developer contains from 3.5×10^-2 to 1.5×10^-1 mol/l of a chloride ion and from 3.0×10^-5 to 1.0×10^-3 mol/l of a bromide ion. The method achieves rapid processing to provide an image having high maximum density and low density without causing streaky pressure marks even when processing is carried out with an automatic developing machine or without a variation of photographic characteristics, particularly gradation in low density areas, occurring even when processing is carried out continuously.

Claims

1. A method for forming an image which comprises developing an image-wise exposed silver halide color photographic material with a color developer containing at least one aromatic primary amine color developing agent, wherein said silver halide color photographic material comprises a silver chloride or silver chlorobromide emulsion having an average silver bromide content of 10 mol% or less and containing substantially no iodide, with a mean grain size of an emulsion contained in the blue-sensitive layer thereof being controlled to 0.9 μ

m or smaller, wherein the silver halide to coupler ratio in said blue-sensitive layer ranges from 2 to 5 as a molar ratio, and wherein said color developer contains from 3.5×

10^-2 to 1.5×

10^-1 mol/l of chloride ion and from 5.0×

10^-5 to 5.0×

10^-4 mol/l of bromide ion.

2. A method as claimed in claim 1, wherein the silver chlorobromide emulsion contains 1 mol% or less silver iodide.

3. A method as claimed in claim 1, wherein the silver chlorobromide emulsion contains 0.2 mol% or less silver iodide.

4. A method as claimed in claim 1, wherein the silver chlorobromide emulsion contains 5 mol% or less silver bromide.

5. A method as claimed in claim 1, wherein the mean grain size of the emulsion contained in the blue-sensitive layer is 0.3 μ

m to 0.9 μ

m.

6. A method as claimed in claim 1, wherein the emulsion in the blue-sensitive layer is a monodispersed emulsion having a coefficient of variation of grain size of not more than 20% or less.

7. A method as claimed in claim 1, wherein the photographic emulsion contains at least one of a stabilizer compound.

8. A method as claimed in claim 1, wherein the silver halide color photographic material contains a yellow coupler, a magenta coupler and a cyan coupler.

9. A method as claimed in claim 1, wherein the color developer contains 4×

10^-2 to 1×

10^-1 mol/l of chloride ion.

10. A method as claimed in claim 1, wherein the silver halide to coupler ratio in said blue-sensitive layer ranges from 2 to 4 as a molar ratio.

11. A method as claimed in claim 10, wherein the silver halide to coupler ratio in said blue-sensitive layer ranges from 2.2 to 3 as a molar ratio.