GB1275074A - Photographic silver halide processing methods - Google Patents
Photographic silver halide processing methodsInfo
- Publication number
- GB1275074A GB1275074A GB26150/69A GB2615069A GB1275074A GB 1275074 A GB1275074 A GB 1275074A GB 26150/69 A GB26150/69 A GB 26150/69A GB 2615069 A GB2615069 A GB 2615069A GB 1275074 A GB1275074 A GB 1275074A
- Authority
- GB
- United Kingdom
- Prior art keywords
- silver
- group
- silver halide
- layer
- latent image
- 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
- 229910052709 silver Inorganic materials 0.000 title abstract 13
- 239000004332 silver Substances 0.000 title abstract 13
- -1 silver halide Chemical class 0.000 title abstract 8
- 238000003672 processing method Methods 0.000 title 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract 6
- 239000008139 complexing agent Substances 0.000 abstract 4
- FOIXSVOLVBLSDH-UHFFFAOYSA-N Silver ion Chemical compound [Ag+] FOIXSVOLVBLSDH-UHFFFAOYSA-N 0.000 abstract 2
- 150000001875 compounds Chemical class 0.000 abstract 2
- OXFSTTJBVAAALW-UHFFFAOYSA-N 1,3-dihydroimidazole-2-thione Chemical compound SC1=NC=CN1 OXFSTTJBVAAALW-UHFFFAOYSA-N 0.000 abstract 1
- GGZHVNZHFYCSEV-UHFFFAOYSA-N 1-Phenyl-5-mercaptotetrazole Chemical compound SC1=NN=NN1C1=CC=CC=C1 GGZHVNZHFYCSEV-UHFFFAOYSA-N 0.000 abstract 1
- VKONPNAILGGMSR-UHFFFAOYSA-N 2-(2-sulfanylidene-3h-1,3-thiazol-4-yl)acetic acid Chemical compound OC(=O)CC1=CSC(=S)N1 VKONPNAILGGMSR-UHFFFAOYSA-N 0.000 abstract 1
- BJNFCPWHYHBVQK-UHFFFAOYSA-N 2-sulfanyl-1,2,4-thiadiazolidine-5-thione Chemical compound SN1CN=C(S)S1 BJNFCPWHYHBVQK-UHFFFAOYSA-N 0.000 abstract 1
- VQPMXSMUUILNFZ-UHFFFAOYSA-N 3,7-dihydropurine-2,6-dithione Chemical compound S=C1NC(=S)NC2=C1NC=N2 VQPMXSMUUILNFZ-UHFFFAOYSA-N 0.000 abstract 1
- DEUALFRBMNMGDS-UHFFFAOYSA-N 6-methoxypyridin-2-amine Chemical compound COC1=CC=CC(N)=N1 DEUALFRBMNMGDS-UHFFFAOYSA-N 0.000 abstract 1
- FULZLIGZKMKICU-UHFFFAOYSA-N N-phenylthiourea Chemical compound NC(=S)NC1=CC=CC=C1 FULZLIGZKMKICU-UHFFFAOYSA-N 0.000 abstract 1
- HTKFORQRBXIQHD-UHFFFAOYSA-N allylthiourea Chemical compound NC(=S)NCC=C HTKFORQRBXIQHD-UHFFFAOYSA-N 0.000 abstract 1
- 229960001748 allylthiourea Drugs 0.000 abstract 1
- 125000003118 aryl group Chemical group 0.000 abstract 1
- 239000007844 bleaching agent Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 238000003918 potentiometric titration Methods 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- 125000003396 thiol group Chemical group [H]S* 0.000 abstract 1
- NBOMNTLFRHMDEZ-UHFFFAOYSA-N thiosalicylic acid Chemical compound OC(=O)C1=CC=CC=C1S NBOMNTLFRHMDEZ-UHFFFAOYSA-N 0.000 abstract 1
- ZEMGGZBWXRYJHK-UHFFFAOYSA-N thiouracil Chemical compound O=C1C=CNC(=S)N1 ZEMGGZBWXRYJHK-UHFFFAOYSA-N 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- G03C1/00—Photosensitive materials
- G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
- G03C1/49—Print-out and photodevelopable emulsions
-
- 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
- G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
- G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
- G03C5/29—Development processes or agents therefor
- G03C5/30—Developers
-
- 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
- G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
- G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
- G03C5/29—Development processes or agents therefor
- G03C5/305—Additives other than developers
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Abstract
1275074 Photographic internal latent image silver halide processing EASTMAN KODAK CO 22 May 1969 [22 May 1968] 26150/69 Heading G2C A method of developing an internal latent image or improving the stability of a photo-developed internal latent image in a layer of a silver halide composition comprises treating the layer with a silver halide developing solution having substantially no silver halide solvent power and containing a silver complexing-agent which is a compound having a group which forms a covalent bond with silver and a II-bonding group, and which is present at a concentration such that a negative developed or negative stabilized photo-developed image is obtained. The group which forms a covalent bond with silver is preferably a mercapto or inino group. The II-bonding group may be an aromatic ring, a group containing a C-C double bond or a group containing at least one donor atom which has two non-bonding electron pairs e.g. C-O-C, C-S-C or S-S groups. The silver complexing agent is preferably a compound which has a solubility in water at 70 F. of at least 10<SP>-5</SP> mole per litre and is capable of forming a silver ion complex in a proportion of at least one silver ion per molecule of the complexing agent in the presence of excess silver ions as measured by potentiometric titration. Preferred silver complexing agents are 1-phenyl-5-mercaptotetrazole, 2-mercapto-imidazole (also in the material in Ex 5), dithiourazole, allylthiourea, 4-carboxymethyl-4-thiazoline-2-thione, 6- mercaptobenzoic acid, 2-thiouracil, 2, 5- dimercapto-1,2,4-thiadiazole, 2, 5-dithioliurea, 2-thioorotic acid, 2, 6-dimercaptopurine and 1-phenyl-2-thiourea. The layer of silver halide composition may be treated with a photographic silver bleach bath before treatment with the developing solution. The layer may be stabilized or fixed and washed after treating the latter with the developing solution.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US73127568A | 1968-05-22 | 1968-05-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1275074A true GB1275074A (en) | 1972-05-24 |
Family
ID=24938827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB26150/69A Expired GB1275074A (en) | 1968-05-22 | 1969-05-22 | Photographic silver halide processing methods |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3615511A (en) |
| BE (1) | BE733492A (en) |
| DE (1) | DE1923824A1 (en) |
| FR (1) | FR2009092A1 (en) |
| GB (1) | GB1275074A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5517374B2 (en) * | 1971-11-09 | 1980-05-10 | ||
| US4211562A (en) * | 1974-04-23 | 1980-07-08 | Polaroid Corporation | Photographic compositions with silver halide solvents containing thioether groups |
| FR2269111B1 (en) * | 1974-04-23 | 1978-09-01 | Polaroid Corp | |
| US4126459A (en) * | 1976-05-14 | 1978-11-21 | Polaroid Corporation | Thioether substituted silver halide solvents |
| EP0848287A1 (en) * | 1996-12-11 | 1998-06-17 | Imation Corp. | Photographic silver halide developer composition and process for forming photographic silver images |
| EP1191395A1 (en) * | 2000-08-21 | 2002-03-27 | Eastman Kodak Company | Ascorbic acid developing compositions and methods of use |
-
1968
- 1968-05-22 US US731275A patent/US3615511A/en not_active Expired - Lifetime
-
1969
- 1969-05-09 DE DE19691923824 patent/DE1923824A1/en active Pending
- 1969-05-21 FR FR6916527A patent/FR2009092A1/fr not_active Withdrawn
- 1969-05-22 GB GB26150/69A patent/GB1275074A/en not_active Expired
- 1969-05-22 BE BE733492A patent/BE733492A/fr unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR2009092A1 (en) | 1970-01-30 |
| US3615511A (en) | 1971-10-26 |
| BE733492A (en) | 1969-07-31 |
| DE1923824A1 (en) | 1969-12-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |