GB773388A - Method of obtaining a direct-positive image in a silver halide emulsion layer - Google Patents
Method of obtaining a direct-positive image in a silver halide emulsion layerInfo
- Publication number
- GB773388A GB773388A GB17105/55A GB1710555A GB773388A GB 773388 A GB773388 A GB 773388A GB 17105/55 A GB17105/55 A GB 17105/55A GB 1710555 A GB1710555 A GB 1710555A GB 773388 A GB773388 A GB 773388A
- Authority
- GB
- United Kingdom
- Prior art keywords
- emulsion
- clayden
- silver halide
- density
- light
- 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
- 239000000839 emulsion Substances 0.000 title abstract 9
- -1 silver halide Chemical class 0.000 title abstract 4
- 229910052709 silver Inorganic materials 0.000 title abstract 3
- 239000004332 silver Substances 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 2
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 abstract 2
- 125000000217 alkyl group Chemical group 0.000 abstract 2
- IOJUPLGTWVMSFF-UHFFFAOYSA-N benzothiazole Chemical compound C1=CC=C2SC=NC2=C1 IOJUPLGTWVMSFF-UHFFFAOYSA-N 0.000 abstract 2
- IOLCXVTUBQKXJR-UHFFFAOYSA-M potassium bromide Chemical compound [K+].[Br-] IOLCXVTUBQKXJR-UHFFFAOYSA-M 0.000 abstract 2
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 abstract 2
- BCMCBBGGLRIHSE-UHFFFAOYSA-N 1,3-benzoxazole Chemical compound C1=CC=C2OC=NC2=C1 BCMCBBGGLRIHSE-UHFFFAOYSA-N 0.000 abstract 1
- UGWULZWUXSCWPX-UHFFFAOYSA-N 2-sulfanylideneimidazolidin-4-one Chemical compound O=C1CNC(=S)N1 UGWULZWUXSCWPX-UHFFFAOYSA-N 0.000 abstract 1
- 229930040373 Paraformaldehyde Natural products 0.000 abstract 1
- FZWLAAWBMGSTSO-UHFFFAOYSA-N Thiazole Chemical compound C1=CSC=N1 FZWLAAWBMGSTSO-UHFFFAOYSA-N 0.000 abstract 1
- WMUIZUWOEIQJEH-UHFFFAOYSA-N benzo[e][1,3]benzoxazole Chemical compound C1=CC=C2C(N=CO3)=C3C=CC2=C1 WMUIZUWOEIQJEH-UHFFFAOYSA-N 0.000 abstract 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 abstract 1
- 239000004327 boric acid Substances 0.000 abstract 1
- 238000000586 desensitisation Methods 0.000 abstract 1
- 229910052739 hydrogen Inorganic materials 0.000 abstract 1
- 239000001257 hydrogen Substances 0.000 abstract 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 abstract 1
- DZVCFNFOPIZQKX-LTHRDKTGSA-M merocyanine Chemical compound [Na+].O=C1N(CCCC)C(=O)N(CCCC)C(=O)C1=C\C=C\C=C/1N(CCCS([O-])(=O)=O)C2=CC=CC=C2O\1 DZVCFNFOPIZQKX-LTHRDKTGSA-M 0.000 abstract 1
- 229920002866 paraformaldehyde Polymers 0.000 abstract 1
- RWPGFSMJFRPDDP-UHFFFAOYSA-L potassium metabisulfite Chemical compound [K+].[K+].[O-]S(=O)S([O-])(=O)=O RWPGFSMJFRPDDP-UHFFFAOYSA-L 0.000 abstract 1
- 239000004297 potassium metabisulphite Substances 0.000 abstract 1
- 235000010263 potassium metabisulphite Nutrition 0.000 abstract 1
- 125000002943 quinolinyl group Chemical class N1=C(C=CC2=CC=CC=C12)* 0.000 abstract 1
- KIWUVOGUEXMXSV-UHFFFAOYSA-N rhodanine Chemical compound O=C1CSC(=S)N1 KIWUVOGUEXMXSV-UHFFFAOYSA-N 0.000 abstract 1
- 235000010265 sodium sulphite Nutrition 0.000 abstract 1
- CBDKQYKMCICBOF-UHFFFAOYSA-N thiazoline Chemical compound C1CN=CS1 CBDKQYKMCICBOF-UHFFFAOYSA-N 0.000 abstract 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 abstract 1
- 229910052721 tungsten Inorganic materials 0.000 abstract 1
- 239000010937 tungsten 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
- 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
- G03C1/36—Desensitisers
-
- 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
- G03C1/08—Sensitivity-increasing substances
- G03C1/10—Organic substances
- G03C1/12—Methine and polymethine dyes
- G03C1/22—Methine and polymethine dyes with an even number of CH groups
-
- 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
- G03C1/485—Direct positive emulsions
- G03C1/48592—Positive image obtained by various effects other than photohole bleaching or internal image desensitisation, e.g. Sabatier, Clayden effect
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
- Y10S430/141—Direct positive material
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
- Plural Heterocyclic Compounds (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US440283A US2828203A (en) | 1954-06-29 | 1954-06-29 | Method of increasing clayden desensitization of photographic emulsions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB773388A true GB773388A (en) | 1957-04-24 |
Family
ID=23748162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB17105/55A Expired GB773388A (en) | 1954-06-29 | 1955-06-14 | Method of obtaining a direct-positive image in a silver halide emulsion layer |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2828203A (cg-RX-API-DMAC10.html) |
| BE (1) | BE539345A (cg-RX-API-DMAC10.html) |
| DE (1) | DE1022090B (cg-RX-API-DMAC10.html) |
| FR (1) | FR1126802A (cg-RX-API-DMAC10.html) |
| GB (1) | GB773388A (cg-RX-API-DMAC10.html) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3063350A (en) * | 1958-08-11 | 1962-11-13 | Honeywell Regulator Co | Recorder |
| GB1335965A (en) * | 1970-02-17 | 1973-10-31 | Agfa Gevaert | Spectrally sensitized silver halide emulsions |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2078233A (en) * | 1934-09-14 | 1937-04-27 | Eastman Kodak Co | Photographic emulsion |
| US2263757A (en) * | 1937-12-16 | 1941-11-25 | Eastman Kodak Co | Ketone dye and process for preparing it |
| US2282116A (en) * | 1939-04-14 | 1942-05-05 | Eastman Kodak Co | Photographic element |
-
0
- BE BE539345D patent/BE539345A/xx unknown
-
1954
- 1954-06-29 US US440283A patent/US2828203A/en not_active Expired - Lifetime
-
1955
- 1955-06-14 GB GB17105/55A patent/GB773388A/en not_active Expired
- 1955-06-27 DE DEE10923A patent/DE1022090B/de active Pending
- 1955-06-29 FR FR1126802D patent/FR1126802A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE539345A (cg-RX-API-DMAC10.html) | |
| DE1022090B (de) | 1958-01-02 |
| FR1126802A (fr) | 1956-12-03 |
| US2828203A (en) | 1958-03-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2675313A (en) | Photographic reproduction process | |
| GB1387033A (en) | Photographic direct-positive process and silver halide emulsion therefor | |
| GB726542A (en) | Improvements in processes of photographic reproduction | |
| US2497875A (en) | Direct positive photographs using aerial fogging developer | |
| US3647460A (en) | Method of producing photographic images by rapid processing | |
| JPS5565951A (en) | Black and whith negative silver image formation method by diffusion transfer photography | |
| GB778792A (en) | Improvements in photographic reproduction processes and in developers and sensitive emulsions therefor | |
| US3784381A (en) | High speed silver chloroiodide emulsions | |
| GB874080A (en) | Improved photographic light sensitive materials and processes | |
| US2456953A (en) | Photographic reversal processes | |
| GB1282778A (en) | Direct-positive silver halide photographic process | |
| GB773388A (en) | Method of obtaining a direct-positive image in a silver halide emulsion layer | |
| US3149970A (en) | Production of photographic silver images by physical development | |
| US3695881A (en) | Positive image production with unfogged internal image silver halide emulsion containing mercaptan retarder and a surface latent image silver halide emulsion | |
| US3713832A (en) | Solarization type silver halide emulsion containing a halogenated hydroxyphthalein sensitizing dye and a desensitizing compound | |
| JPS58120248A (ja) | 直接ポジ画像形成方法 | |
| GB580587A (en) | Sensitive photographic materials and the development of images therein | |
| GB1141597A (en) | Photomechanical printing processes and materials therefor | |
| US3565620A (en) | Photographic processing liquids and method of producing photographic images | |
| US2739890A (en) | Photographic reproduction process | |
| GB785873A (en) | Improvements in or relating to dyed photographic relief records | |
| GB753189A (en) | Process and photographic material for the direct production of positive photographic images | |
| US3413122A (en) | Process for forming images and elements therefor | |
| US3645731A (en) | Silver salt diffusion alkaline bath of trisodium phosphate and a polyalcohol | |
| GB626053A (en) | Improvements in sensitive photographic materials |