US4818673A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for processing a silver halide color photographic material
Assignee: Fujifilm Holdings Corp
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Filing: 1987-08-05
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Granted: 1989-04-04
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Expires: 2007-08-05
Abstract
Abstract A method for processing a silver halide color photographic material is disclosed, which comprises processing an imagewise exposed silver halide color photographic material comprising a support having thereon at least one silver halide emulsion layer comprising silver chloride or silver chlorobromide containing at least 80 mol % of silver chloride with a color developing solution and thereafter processing the material with a bleach-fixing solution, wherein the bleach-fixing solution contains a ferric complex salt of an organic acid and from about 1×10 -2 to about 2 mol of bromide ions and/or from about 5×10 -4 to about 5×10 -2 mol of iodide ions per liter. The method for processing a silver halide color photographic material according to the present invention is excellent in desilvering ability, and enables rapid processing to be conducted.
Inventors
- 👤 Shinji Ueda
- 👤 Kazunori Hasebe
- 👤 Junya Nakajima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:33
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/42; G03C7/421
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
100 words
A method for processing a silver halide color photographic material comprising processing an imagewise exposed silver halide color photographic material comprising a support having thereon at least one silver halide emulsion layer comprising silver chloride or silver chlorobromide containing at least about 80 mol% of silver chloride with a color developing solution and thereafter processing said material with a bleach-fixing solution, wherein the bleach-fixing solution contains a ferric complex salt of an organic acid and from about 1×10 -2 to about 2 mol of bromide ions and/or from 5×10 -4 to about 5×10 -2 mol of iodide ions per liter.
Claim 2
Independent Claim
100 words
A method for processing a silver halide color photographic material comprising processing an imagewise exposed silver halide color photographic material comprising a support having thereon at least one silver halide emulsion layer comprising silver chloride or silver chlorobromide containing at least about 80 mol% of silver chloride with a color developing solution and thereafter processing said material with a bleach-fixing solution, wherein the bleach-fixing solution contains a ferric complex salt of an organic acid and from about 1×10 -2 to about 2 mol of bromide ions and/or from 5×10 -4 to about 5×10 -2 mol of iodide ions per liter.
Claim 3
Dependent Claim
25 words
A method for processing a silver halide color photographic material as claimed in claim 1, wherein the color developing solution contains substantially no benzyl alcohol.
Claim 4
Dependent Claim
31 words
A method for processing a silver halide color photographic material as claimed in claim 1, wherein the content of silver chloride in the silver halide emulsion is at least 90 mol%.
Claim 5
Dependent Claim
24 words
A method for processing a silver halide color photographic material as claimed in claim 1, wherein the silver halide emulsion substantially excludes silver iodide.
Claim 6
Dependent Claim
39 words
A method for processing a silver halide color photographic material as claimed in claim 1, wherein the amount of silver halide coated on the support, calculated in terms of silver, is not more than about 0.78 g/m 2 .
Claim 7
Dependent Claim
37 words
A method for processing a silver halide color photographic material as claimed in claim 1, wherein the silver halide emulsion is a monodispersed silver halide emulsion having a grain size distribution of not more than about 0.2.
Claim 8
Dependent Claim
25 words
A method for processing a silver halide color photographic material as claimed in claim 1, wherein the silver halide emulsion is subjected to sulfur sensitization.
Claim 9
Dependent Claim
72 words
A method for processing a silver halide color photographic material as claimed in claim 1, wherein the silver halide color photographic material comprises at least one blue-sensitive silver halide emulsion layer containing at least one yellow color forming coupler, at least one green-sensitive silver halide emulsion layer containing at least one magenta color forming coupler, and at least one red-sensitive silver halide emulsion layer containing at least one cyan color forming coupler.
Claim 10
Dependent Claim
58 words
A method for processing a silver halide color photographic material as claimed in claim 8, wherein the yellow color forming coupler is selected from acylacetamide type couplers, the magenta color forming coupler is selected from 5-pyrazolone type couplers and pyrazoloazole type couplers, and the cyan color forming coupler is selected from naphthol type couplers and phenol type couplers.
Claim 11
Dependent Claim
22 words
A method for processing a silver halide color photographic material as claimed in claim 1, wherein the support is a reflective support.
Claim 12
Dependent Claim
28 words
A method for processing a silver halide color photographic material as claimed in claim 1, wherein the color developing solution contains an aromatic primary amine color developing agent.
Claim 13
Dependent Claim
37 words
A method for processing a silver halide color photographic material as claimed in claim 1, wherein the time for processing the material with the color developing solution is not more than about 2 minutes and 30 seconds.
Claim 14
Dependent Claim
25 words
A method for processing a silver halide color photographic material as claimed in claim 12, wherein said time is from 10 seconds to 2 minutes.
Claim 15
Dependent Claim
58 words
A method for processing a silver halide color photographic material as claimed in claim 1, wherein the ferric complex salt of an organic acid is a complex of a ferric ion and a chelating agent, said chelating agent being selected from the group consisting of an aminopolycarboxylic acid, a salt thereof, an aminopolyphosphonic acid and a salt thereof.
Claim 16
Dependent Claim
28 words
A method for processing a silver halide color photographic material as claimed in claim 14, wherein the ferric complex salt is a ferric complex of an aminopolycarboxylic acid.
Claim 17
Dependent Claim
42 words
A method for processing a silver halide color photographic material as claimed in claim 1, wherein said bleach-fixing solution contains from 1×10 -2 to 5×10 -5 mol of bromide ions and/or 5×10 -4 to 1×10 -2 mol of iodide ions per liter.
Claim 18
Dependent Claim
40 words
A method for processing a silver halide color photographic material as claimed in claim 14, wherein said ferric ion complex is present in said bleach-fixing solution in an amount of from about 0.01 mol to about 1.0 mol per liter.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-04-03 | 1992-10-03 | 1993-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-04-03 | 1996-10-03 | 1997-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-04-03 | 2000-10-03 | 2001-04-04 | $7700.00 | Window Closed / Lapsed |