GB1444463A - Photographic silver halide colour development process - Google Patents
Photographic silver halide colour development processInfo
- Publication number
- GB1444463A GB1444463A GB220474A GB220474A GB1444463A GB 1444463 A GB1444463 A GB 1444463A GB 220474 A GB220474 A GB 220474A GB 220474 A GB220474 A GB 220474A GB 1444463 A GB1444463 A GB 1444463A
- Authority
- GB
- United Kingdom
- Prior art keywords
- silver halide
- benzoic acid
- photographic silver
- colour
- substituted benzoic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- -1 silver halide Chemical class 0.000 title abstract 5
- 229910052709 silver Inorganic materials 0.000 title abstract 4
- 239000004332 silver Substances 0.000 title abstract 4
- WPYMKLBDIGXBTP-UHFFFAOYSA-N Benzoic acid Natural products OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 abstract 3
- 239000005711 Benzoic acid Substances 0.000 abstract 3
- 235000010233 benzoic acid Nutrition 0.000 abstract 3
- 150000001558 benzoic acid derivatives Chemical class 0.000 abstract 3
- 239000000463 material Substances 0.000 abstract 2
- SLAMLWHELXOEJZ-UHFFFAOYSA-N 2-nitrobenzoic acid Chemical compound OC(=O)C1=CC=CC=C1[N+]([O-])=O SLAMLWHELXOEJZ-UHFFFAOYSA-N 0.000 abstract 1
- AFPHTEQTJZKQAQ-UHFFFAOYSA-N 3-nitrobenzoic acid Chemical compound OC(=O)C1=CC=CC([N+]([O-])=O)=C1 AFPHTEQTJZKQAQ-UHFFFAOYSA-N 0.000 abstract 1
- OTLNPYWUJOZPPA-UHFFFAOYSA-N 4-nitrobenzoic acid Chemical compound OC(=O)C1=CC=C([N+]([O-])=O)C=C1 OTLNPYWUJOZPPA-UHFFFAOYSA-N 0.000 abstract 1
- 239000000839 emulsion Substances 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
- G03C7/30—Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials
- G03C7/392—Additives
- G03C7/39208—Organic compounds
- G03C7/39236—Organic compounds with a function having at least two elements among nitrogen, sulfur or oxygen
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C1/00—Photosensitive materials
- G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
- G03C1/06—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
- G03C1/34—Fog-inhibitors; Stabilisers; Agents inhibiting latent image regression
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
- G03C7/30—Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials
- G03C7/407—Development processes or agents therefor
- G03C7/413—Developers
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1444463 Photographic silver halide colour development EASTMAN KODAK CO 17 Jan 1974 [24 Jan 1973] 02204/74 Heading G2C A photographic silver halide material is developed with an aqueous alkaline colour developer solution in the presence of a nitro-substituted benzoic acid in an amount at least sufficient to reduce fog. The substituted benzoic acid may be 2,4-, 3,4-, 2,5-, or 3,5-dinitro-, 2,4,6-trinitro- or o-, m-, or p-nitro-benzoic acid. The substituted benzoic acid is preferably in the colour developer solution but may be in the silver halide emulsion or an adjacent layer. Colour couplers may be in the material or colour developer solution. The substituted benzoic acid is especially effective in reducing magenta and yellow fog and, to a lesser extent, cyan fog and does not reduce development speed.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US00326353A US3832179A (en) | 1973-01-24 | 1973-01-24 | Inhibition of fog in photographic color development |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1444463A true GB1444463A (en) | 1976-07-28 |
Family
ID=23271852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB220474A Expired GB1444463A (en) | 1973-01-24 | 1974-01-17 | Photographic silver halide colour development process |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3832179A (en) |
| JP (1) | JPS5712983B2 (en) |
| CA (1) | CA998279A (en) |
| DE (1) | DE2402899C2 (en) |
| FR (1) | FR2214910B1 (en) |
| GB (1) | GB1444463A (en) |
| IT (1) | IT1003451B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4132551A (en) * | 1971-09-17 | 1979-01-02 | Agfa-Gevaert N.V. | High temperature processing of photographic silver halide material |
| US4171976A (en) * | 1978-03-10 | 1979-10-23 | Eastman Kodak Company | Homopolymerization inhibition of photographic hardeners |
| US4256826A (en) * | 1978-08-14 | 1981-03-17 | Eastman Kodak Company | Bleach-fix sheets |
| JPH08272060A (en) * | 1996-03-25 | 1996-10-18 | Konica Corp | Color developing solution for silver halide color photographic sensitive material |
| FR2777094B1 (en) * | 1998-04-03 | 2000-06-09 | Eastman Kodak Co | KIT FOR CHROMOGENEOUS PHOTOGRAPHIC DEVELOPER |
| FR2790840A1 (en) * | 1999-03-08 | 2000-09-15 | Eastman Kodak Co | NEW KIT FOR CHROMOGENEOUS PHOTOGRAPHIC DEVELOPER |
| FR2790841B1 (en) * | 1999-03-08 | 2003-11-07 | Eastman Kodak Co | METHOD FOR RENEWING A CHROMOGENEOUS PHOTOGRAPHIC DEVELOPER |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1952253C3 (en) * | 1968-10-22 | 1979-03-22 | Fuji Photo Film Co., Ltd., Ashigara, Kanagawa (Japan) | Process for developing color photographic recording materials |
| BE788687A (en) * | 1971-09-17 | 1973-03-12 | Agfa Gevaert Nv | DEVELOPMENT OF SILVER HALOGENIDE MATERIAL AT ELEVATED TEMPERATURE |
-
1973
- 1973-01-24 US US00326353A patent/US3832179A/en not_active Expired - Lifetime
- 1973-12-12 CA CA188,047A patent/CA998279A/en not_active Expired
-
1974
- 1974-01-17 GB GB220474A patent/GB1444463A/en not_active Expired
- 1974-01-18 IT IT19586/74A patent/IT1003451B/en active
- 1974-01-22 DE DE2402899A patent/DE2402899C2/en not_active Expired
- 1974-01-23 FR FR7402170A patent/FR2214910B1/fr not_active Expired
- 1974-01-24 JP JP978574A patent/JPS5712983B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2214910B1 (en) | 1977-06-10 |
| FR2214910A1 (en) | 1974-08-19 |
| IT1003451B (en) | 1976-06-10 |
| DE2402899A1 (en) | 1974-07-25 |
| DE2402899C2 (en) | 1982-12-30 |
| CA998279A (en) | 1976-10-12 |
| US3832179A (en) | 1974-08-27 |
| JPS5712983B2 (en) | 1982-03-13 |
| JPS49106832A (en) | 1974-10-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PE20 | Patent expired after termination of 20 years |
Effective date: 19940116 |