GB1101895A - Photographic direct positive colour processes and materials - Google Patents
Photographic direct positive colour processes and materialsInfo
- Publication number
- GB1101895A GB1101895A GB15124/65A GB1512465A GB1101895A GB 1101895 A GB1101895 A GB 1101895A GB 15124/65 A GB15124/65 A GB 15124/65A GB 1512465 A GB1512465 A GB 1512465A GB 1101895 A GB1101895 A GB 1101895A
- Authority
- GB
- United Kingdom
- Prior art keywords
- colour
- emulsion
- materials
- fogging
- direct positive
- 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
- 239000000463 material Substances 0.000 title abstract 8
- 238000000034 method Methods 0.000 title abstract 2
- 239000000839 emulsion Substances 0.000 abstract 7
- 239000003795 chemical substances by application Substances 0.000 abstract 4
- 239000000975 dye Substances 0.000 abstract 4
- -1 silver halide Chemical class 0.000 abstract 4
- 239000010410 layer Substances 0.000 abstract 2
- NNGXPHNZXAIRIL-UHFFFAOYSA-N ethene;pyridine Chemical class C=C.C1=CC=NC=C1.C1=CC=NC=C1 NNGXPHNZXAIRIL-UHFFFAOYSA-N 0.000 abstract 1
- 229940042795 hydrazides for tuberculosis treatment Drugs 0.000 abstract 1
- 150000002429 hydrazines Chemical class 0.000 abstract 1
- 150000007857 hydrazones Chemical class 0.000 abstract 1
- 239000002667 nucleating agent Substances 0.000 abstract 1
- IYLAFLZKTGDJQK-UHFFFAOYSA-N phenyl(2h-tetrazol-5-yl)methanone Chemical compound C=1C=CC=CC=1C(=O)C=1N=NNN=1 IYLAFLZKTGDJQK-UHFFFAOYSA-N 0.000 abstract 1
- 229910052709 silver Inorganic materials 0.000 abstract 1
- 239000004332 silver Substances 0.000 abstract 1
- 239000002356 single layer 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
- G03C7/3924—Heterocyclic
- G03C7/39244—Heterocyclic the nucleus containing only nitrogen as hetero atoms
- G03C7/3926—Heterocyclic the nucleus containing only nitrogen as hetero atoms four or more nitrogen atoms
-
- 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
- G03C1/48538—Direct positive emulsions non-prefogged, i.e. fogged after imagewise exposure
-
- 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
- G03C7/305—Substances liberating photographically active agents, e.g. development-inhibiting releasing couplers
-
- 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
- G03C7/32—Colour coupling substances
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Abstract
1,101,895. Direct positive colour photographic process and materials. EASTMAN KODAK CO. April 9, 1965 [April 9, 1964], No.15124/65. Heading G2C. A direct positive colour photographic image is obtained when a photographic material having an internal latent image silver halide emulsion containing a 5-substituted tetrazole and, in the emulsion or contiguous thereto, a non-diffusing colour coupler capable of forming a diffusible or non-diffusible dye on reaction with oxidized aromatic primary amino developing agent, is exposed and developed with an aqueous alkaline processing solution in the presence of an aromatic primary amino developing agent, the exposed material being fogged before or during development, optionally by the presence of a fogging or nucleating agent. When the colour coupler forms a non- diffusible dye the material is bleached and fixed to give a positive colour transparency or reflection print, and when the coupler forms a diffusible dye the latter is allowed to diffuse to a mordanted receiving sheet in contact with the material. 5-Substituted-tetrazoles specified include, for example, 5-(4'-cyanophenyl)-, 5-(3':4'-dimethoxyphenyl)-, 5-phenyl-, 5-(4'-pyridyl)-, 5-(n-propyl)-, 5-dimethylamino- and 5-benzoyl-tetrazole. The colour developer, which is preferably in the form of a Schiffs base derivative when it is in the emulsion, and the fogging agent may be present in the emulsion or other layer of the material or in the processing solution. Fogging agents mentioned are hydrazines, hydrazides, hydrazones, ethylene bis-(pyridinium) salts and reductones. The materials may contain single or multilayer emulsions, particularly three emulsion layers sensitive to red, green and blue light respectively and having colour couplers forming complementarily coloured dyes, or the differently sensitized emulsions and their couplers may be present as packets in a single layer.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US358538A US3352672A (en) | 1964-04-09 | 1964-04-09 | Photographic direct positive color process and element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1101895A true GB1101895A (en) | 1968-01-31 |
Family
ID=23410055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB15124/65A Expired GB1101895A (en) | 1964-04-09 | 1965-04-09 | Photographic direct positive colour processes and materials |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3352672A (en) |
| DE (1) | DE1273323B (en) |
| GB (1) | GB1101895A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0146302A1 (en) * | 1983-12-13 | 1985-06-26 | Konica Corporation | Light-sensitive silver halide photographic material for direct-post and method for processing the same |
| EP0241107A2 (en) * | 1986-01-24 | 1987-10-14 | Konica Corporation | Silver halide photograhic material that is resistant to fogging during storage |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE754842A (en) * | 1969-08-14 | 1971-01-18 | Eastman Kodak Co | DIRECT POSITIVE SILVER HALOGRAPH PHOTOGRAPHIC PRODUCT WITH IMPROVED EXPOSURE LATITUDE |
| US3622318A (en) * | 1970-03-20 | 1971-11-23 | Eastman Kodak Co | Photographic materials and processes |
| US3819376A (en) * | 1972-10-25 | 1974-06-25 | Polaroid Corp | Sensitometric modification by pre-exposure |
| US4141730A (en) * | 1975-04-08 | 1979-02-27 | Fuji Photo Film Co., Ltd. | Multilayer color photographic materials |
| JPS5559461A (en) * | 1978-10-30 | 1980-05-02 | Fuji Photo Film Co Ltd | Photographic material for color diffusion transfer method |
| JPS5991441A (en) * | 1982-11-17 | 1984-05-26 | Konishiroku Photo Ind Co Ltd | Silver halide photosensitive material |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2981624A (en) * | 1957-06-05 | 1961-04-25 | Gen Aniline & Film Corp | Antifoggants and stabilizers for photographic silver halide emulsion |
| BE603747A (en) * | 1960-05-13 | |||
| BE620828A (en) * | 1961-08-01 | |||
| US3260604A (en) * | 1963-11-19 | 1966-07-12 | Eastman Kodak Co | Photographic colloid transfer system |
-
1964
- 1964-04-09 US US358538A patent/US3352672A/en not_active Expired - Lifetime
-
1965
- 1965-04-07 DE DEE29060A patent/DE1273323B/en active Pending
- 1965-04-09 GB GB15124/65A patent/GB1101895A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0146302A1 (en) * | 1983-12-13 | 1985-06-26 | Konica Corporation | Light-sensitive silver halide photographic material for direct-post and method for processing the same |
| EP0241107A2 (en) * | 1986-01-24 | 1987-10-14 | Konica Corporation | Silver halide photograhic material that is resistant to fogging during storage |
| EP0241107A3 (en) * | 1986-01-24 | 1988-10-05 | Konishiroku Photo Industry Co. Ltd. | Silver halide photograhic material that is resistant to fogging during storage |
Also Published As
| Publication number | Publication date |
|---|---|
| US3352672A (en) | 1967-11-14 |
| DE1273323B (en) | 1968-07-18 |
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