GB686868A - Improvements in or relating to photographic materials - Google Patents
Improvements in or relating to photographic materialsInfo
- Publication number
- GB686868A GB686868A GB2808350A GB2808350A GB686868A GB 686868 A GB686868 A GB 686868A GB 2808350 A GB2808350 A GB 2808350A GB 2808350 A GB2808350 A GB 2808350A GB 686868 A GB686868 A GB 686868A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relating
- nov
- photographic materials
- photographic
- pseudocyanine
- 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 abstract 2
- AGJZCWVTGOVGBS-UHFFFAOYSA-N 1,1'-diethyl-2,2'-cyanine Chemical compound C1=CC2=CC=CC=C2N(CC)\C1=C\C1=CC=C(C=CC=C2)C2=[N+]1CC AGJZCWVTGOVGBS-UHFFFAOYSA-N 0.000 abstract 1
- 239000000298 carbocyanine Substances 0.000 abstract 1
- 150000001875 compounds Chemical class 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
- QWYZFXLSWMXLDM-UHFFFAOYSA-M pinacyanol iodide Chemical compound [I-].C1=CC2=CC=CC=C2N(CC)C1=CC=CC1=CC=C(C=CC=C2)C2=[N+]1CC QWYZFXLSWMXLDM-UHFFFAOYSA-M 0.000 abstract 1
- 230000001235 sensitizing effect Effects 0.000 abstract 1
- 229910052709 silver Inorganic materials 0.000 abstract 1
- 239000004332 silver Substances 0.000 abstract 1
- -1 silver halide Chemical class 0.000 abstract 1
- ANRHNWWPFJCPAZ-UHFFFAOYSA-M thionine Chemical compound [Cl-].C1=CC(N)=CC2=[S+]C3=CC(N)=CC=C3N=C21 ANRHNWWPFJCPAZ-UHFFFAOYSA-M 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
- G03C1/34—Fog-inhibitors; Stabilisers; Agents inhibiting latent image regression
- G03C1/346—Organic derivatives of bivalent sulfur, selenium or tellurium
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- General Physics & Mathematics (AREA)
- Plural Heterocyclic Compounds (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
- Photosensitive Polymer And Photoresist Processing (AREA)
Abstract
686,868. Photographic emulsions. ILFORD, Ltd. Nov. 7, 1951 [Nov. 16, 1950], No. 28083/50. Addition to 648,185. Class 98 (ii). A photographic silver halide emulsion according to the parent Specification, containing a small quantity of a fog-reducing compound of the general formula specified therein, also contains a sensitizing dye, e.g. a cyanine, pseudocyanine, carbocyanine, dicarbocyanine, tricarbocyanine, or merocyanine dye, such as those described in Specifications 424,559, 426,718, 428,359, 447,038, [all in Group IV], 457,335, 485,110, 487,051, 489,335, 544,645, 553,144, 557,549, 595,784 and 610,569.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2808350A GB686868A (en) | 1950-11-16 | 1950-11-16 | Improvements in or relating to photographic materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2808350A GB686868A (en) | 1950-11-16 | 1950-11-16 | Improvements in or relating to photographic materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB686868A true GB686868A (en) | 1953-02-04 |
Family
ID=10269992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2808350A Expired GB686868A (en) | 1950-11-16 | 1950-11-16 | Improvements in or relating to photographic materials |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB686868A (en) |
-
1950
- 1950-11-16 GB GB2808350A patent/GB686868A/en not_active Expired
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