GB748681A - Process for the production of direct positive photographic images by means of the herschel effect - Google Patents
Process for the production of direct positive photographic images by means of the herschel effectInfo
- Publication number
- GB748681A GB748681A GB7662/54A GB766254A GB748681A GB 748681 A GB748681 A GB 748681A GB 7662/54 A GB7662/54 A GB 7662/54A GB 766254 A GB766254 A GB 766254A GB 748681 A GB748681 A GB 748681A
- Authority
- GB
- United Kingdom
- Prior art keywords
- chloride
- nitrobenzylpyridinium
- silver halide
- halide emulsion
- added
- 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
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- 239000000839 emulsion Substances 0.000 abstract 7
- 229910052709 silver Inorganic materials 0.000 abstract 4
- 239000004332 silver Substances 0.000 abstract 4
- -1 silver halide Chemical class 0.000 abstract 4
- YXIWHUQXZSMYRE-UHFFFAOYSA-N 1,3-benzothiazole-2-thiol Chemical compound C1=CC=C2SC(S)=NC2=C1 YXIWHUQXZSMYRE-UHFFFAOYSA-N 0.000 abstract 2
- OCHHVLSDXBEVMG-UHFFFAOYSA-M 1-benzyl-2-nitropyridin-1-ium chloride Chemical compound [Cl-].[N+](=O)([O-])C1=[N+](C=CC=C1)CC1=CC=CC=C1 OCHHVLSDXBEVMG-UHFFFAOYSA-M 0.000 abstract 2
- PPFYCHOHPQXYAB-UHFFFAOYSA-M 1-benzyl-3-nitropyridin-1-ium chloride Chemical compound [Cl-].[N+](=O)([O-])C=1C=[N+](C=CC1)CC1=CC=CC=C1 PPFYCHOHPQXYAB-UHFFFAOYSA-M 0.000 abstract 2
- HYZJCKYKOHLVJF-UHFFFAOYSA-N 1H-benzimidazole Chemical compound C1=CC=C2NC=NC2=C1 HYZJCKYKOHLVJF-UHFFFAOYSA-N 0.000 abstract 2
- 150000001875 compounds Chemical class 0.000 abstract 2
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 abstract 2
- FJFQBIZBOJMBKI-UHFFFAOYSA-M 1-benzyl-2-methyl-4-nitropyridin-1-ium chloride Chemical compound [Cl-].[N+](=O)([O-])C1=CC(=[N+](C=C1)CC1=CC=CC=C1)C FJFQBIZBOJMBKI-UHFFFAOYSA-M 0.000 abstract 1
- 241001479434 Agfa Species 0.000 abstract 1
- XOCJGLNJHYPERA-UHFFFAOYSA-M [Cl-].[N+](=O)([O-])C1=C(C[N+]2=CC=CC3=CC=CC=C23)C=CC=C1 Chemical compound [Cl-].[N+](=O)([O-])C1=C(C[N+]2=CC=CC3=CC=CC=C23)C=CC=C1 XOCJGLNJHYPERA-UHFFFAOYSA-M 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 238000003287 bathing Methods 0.000 abstract 1
- 150000001879 copper Chemical class 0.000 abstract 1
- 229910052736 halogen Inorganic materials 0.000 abstract 1
- 125000005843 halogen group Chemical group 0.000 abstract 1
- 125000000623 heterocyclic group Chemical group 0.000 abstract 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 abstract 1
- 150000003254 radicals Chemical class 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
- G03C1/485—Direct positive emulsions
- G03C1/48592—Positive image obtained by various effects other than photohole bleaching or internal image desensitisation, e.g. Sabatier, Clayden effect
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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE323635X | 1953-03-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB748681A true GB748681A (en) | 1956-05-09 |
Family
ID=6174656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7662/54A Expired GB748681A (en) | 1953-03-16 | 1954-03-16 | Process for the production of direct positive photographic images by means of the herschel effect |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE527271A (enrdf_load_stackoverflow) |
| CH (1) | CH323635A (enrdf_load_stackoverflow) |
| FR (1) | FR1095269A (enrdf_load_stackoverflow) |
| GB (1) | GB748681A (enrdf_load_stackoverflow) |
| NL (1) | NL88424C (enrdf_load_stackoverflow) |
-
0
- BE BE527271D patent/BE527271A/xx unknown
- NL NL88424D patent/NL88424C/xx active
-
1954
- 1954-03-13 FR FR1095269D patent/FR1095269A/fr not_active Expired
- 1954-03-16 CH CH323635D patent/CH323635A/de unknown
- 1954-03-16 GB GB7662/54A patent/GB748681A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1095269A (fr) | 1955-05-31 |
| BE527271A (enrdf_load_stackoverflow) | |
| NL88424C (enrdf_load_stackoverflow) | |
| CH323635A (de) | 1957-08-15 |
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