GB661211A - Improvements in or relating to colour photography - Google Patents
Improvements in or relating to colour photographyInfo
- Publication number
- GB661211A GB661211A GB3601/49A GB360149A GB661211A GB 661211 A GB661211 A GB 661211A GB 3601/49 A GB3601/49 A GB 3601/49A GB 360149 A GB360149 A GB 360149A GB 661211 A GB661211 A GB 661211A
- Authority
- GB
- United Kingdom
- Prior art keywords
- colour
- silver
- layer
- layers
- development
- 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
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract 8
- 239000004332 silver Substances 0.000 abstract 8
- 229910052709 silver Inorganic materials 0.000 abstract 8
- 230000000873 masking effect Effects 0.000 abstract 5
- ADZWSOLPGZMUMY-UHFFFAOYSA-M silver bromide Chemical compound [Ag]Br ADZWSOLPGZMUMY-UHFFFAOYSA-M 0.000 abstract 5
- 239000000839 emulsion Substances 0.000 abstract 4
- 239000000975 dye Substances 0.000 abstract 3
- 238000000034 method Methods 0.000 abstract 3
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 abstract 2
- 238000004061 bleaching Methods 0.000 abstract 2
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 abstract 2
- 238000011282 treatment Methods 0.000 abstract 2
- IEZDTNCUMWPRTD-UHFFFAOYSA-N 346704-04-9 Chemical compound [O-][N+](=O)C1=CC=C(N2CCNCC2)C=C1N1CCCCC1 IEZDTNCUMWPRTD-UHFFFAOYSA-N 0.000 abstract 1
- 229910021607 Silver chloride Inorganic materials 0.000 abstract 1
- JPIYZTWMUGTEHX-UHFFFAOYSA-N auramine O free base Chemical compound C1=CC(N(C)C)=CC=C1C(=N)C1=CC=C(N(C)C)C=C1 JPIYZTWMUGTEHX-UHFFFAOYSA-N 0.000 abstract 1
- 239000003638 chemical reducing agent Substances 0.000 abstract 1
- 229960003280 cupric chloride Drugs 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- -1 silver halide Chemical class 0.000 abstract 1
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 abstract 1
- 229910052938 sodium sulfate Inorganic materials 0.000 abstract 1
- 235000011152 sodium sulphate Nutrition 0.000 abstract 1
- 235000010265 sodium sulphite Nutrition 0.000 abstract 1
- UJMBCXLDXJUMFB-GLCFPVLVSA-K tartrazine Chemical compound [Na+].[Na+].[Na+].[O-]C(=O)C1=NN(C=2C=CC(=CC=2)S([O-])(=O)=O)C(=O)C1\N=N\C1=CC=C(S([O-])(=O)=O)C=C1 UJMBCXLDXJUMFB-GLCFPVLVSA-K 0.000 abstract 1
- 239000004149 tartrazine Substances 0.000 abstract 1
- 229960000943 tartrazine Drugs 0.000 abstract 1
- 235000012756 tartrazine Nutrition 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
- G03C7/18—Processes for the correction of the colour image in subtractive colour photography
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
- Photosensitive Polymer And Photoresist Processing (AREA)
Abstract
661,211. Colour photography. ILFORD, Ltd. Feb. 7, 1950 [Feb. 9, 1949], No. 3601/49. Class 98 (ii). A multilayer material which includes a layer destined to record a masking image for colour correction comprises the following layers: (a) blue-sensitive silver bromide emulsion containing a colour-former; (b) removable blueabsorbing filter; (c) green-sensitized silver bromide emulsion containing a colour-former; (d) red-sensitized silver bromide emulsion containing a colour-former; (e) removable blueabsorbing. filter; (f) silver bromide emulsion sensitized to green or red or both, constituting the masking layer; (g) transparent colourless support, the colour-formers lying preferably in the usual yellow, magenta and cyan sequence; or with layers (c) and (d) in reverse order; while, if desired, layer (f) or layers (e) and (f) may be on the other side of the support. The filter layers may incorporate dischargeable dyestuffs or colloidal silver, and in a modification layer (f) may include a colour former for masking the colour images of layers (c) or (d) or both. The element may be exposed; and then processed to a negative colour record with positive masks in dye or silver, or to a positive colour record with negative masks, by a number of procedures which include (1) non-colour-forming development to produce negative silver records in layers (a), (c), (d) and (f), exposure of layer (f) by blue light, development in a colour developer containing a colour-former to produce a colour masking image suitable for the colour images to be produced in layers (c) or (d) or both, fixation, bleaching, re-exposure, colour development and removal of silver and residual silver halide by Farmer's reducer; (3) initial colour development, which development may be brought to completion if desired in a vigorous black and white developer, treatment with cupric chloride to convert the developed silver to silver chloride, removal of the latter with sodium sulphite which leaves the silver bromide of the original layers unaffected, re-exposure of layer (f) by blue light, non-colour-forming development to produce a positive silver mask therein and fixation in hypo. Procedure (4) uses reversal technique and for this the element must be one in which filter layer (b) includes a readily removable dyestuff such as tartrazine, while filter layer (e) resists developing, fixing and bleaching treatments and may comprise a complex of auramine base and bexadecyl sodium sulphate; after exposure the element is treated in a non-colour-forming developer to produce negative silver records in layers (a), (c), (d) and (f) and decolorize layer (b), re-exposed by blue light incident on layer (a), colour developed, fixed, bleached as with potassiumferricyanide and -bromide, re-exposed with blue light incident on layer (f), developed to produce a negative masking record in either silver or dyestuff therein, fixed and, finally, treated as with dodecyl pyridinium bromide to remove the filter material in layer (e). Specifications 475,784, 475,786 and 561,674 are referred to.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3601/49A GB661211A (en) | 1949-02-09 | 1949-02-09 | Improvements in or relating to colour photography |
| US143157A US2647833A (en) | 1949-02-09 | 1950-02-08 | Color photographic film and process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3601/49A GB661211A (en) | 1949-02-09 | 1949-02-09 | Improvements in or relating to colour photography |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB661211A true GB661211A (en) | 1951-11-21 |
Family
ID=9761406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3601/49A Expired GB661211A (en) | 1949-02-09 | 1949-02-09 | Improvements in or relating to colour photography |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2647833A (en) |
| GB (1) | GB661211A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0252550A1 (en) * | 1986-07-08 | 1988-01-13 | Agfa-Gevaert N.V. | Colour photographic motion picture projection film element |
| EP0304297A2 (en) * | 1987-08-20 | 1989-02-22 | EASTMAN KODAK COMPANY (a New Jersey corporation) | Color photographic element |
| EP0368271A1 (en) * | 1988-11-09 | 1990-05-16 | Fuji Photo Film Co., Ltd. | Silver halide color photographic material |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE563474A (en) * | 1956-12-31 | 1960-06-17 | ||
| NL247346A (en) * | 1959-01-14 | |||
| NL253100A (en) * | 1959-06-26 | |||
| DE1142757B (en) * | 1961-03-14 | 1963-01-24 | Agfa Ag | Process for improving color reproduction when reproducing multicolor images with the aid of two color masks |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE416147A (en) * | 1935-06-22 | |||
| GB483035A (en) * | 1936-10-09 | 1938-04-11 | Truecolour Film Ltd | Improvements in colour photography and kinematography |
| FR828754A (en) * | 1936-11-07 | 1938-05-30 | Ig Farbenindustrie Ag | Color film production process |
| US2316803A (en) * | 1938-12-28 | 1943-04-20 | Chromogen Inc | Photographic material for taking color photographs |
| US2258187A (en) * | 1940-01-15 | 1941-10-07 | Eastman Kodak Co | Integral mask for multicolor film |
| US2348735A (en) * | 1941-01-24 | 1944-05-16 | Chromogen Inc | Method of and material for producing corrected photographic images |
| US2393756A (en) * | 1942-03-06 | 1946-01-29 | Eastman Kodak Co | Photographic color correction process |
| US2492954A (en) * | 1947-12-24 | 1950-01-03 | Du Pont | Photographic four-color light-sensitive stripping elements |
-
1949
- 1949-02-09 GB GB3601/49A patent/GB661211A/en not_active Expired
-
1950
- 1950-02-08 US US143157A patent/US2647833A/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0252550A1 (en) * | 1986-07-08 | 1988-01-13 | Agfa-Gevaert N.V. | Colour photographic motion picture projection film element |
| EP0304297A2 (en) * | 1987-08-20 | 1989-02-22 | EASTMAN KODAK COMPANY (a New Jersey corporation) | Color photographic element |
| EP0304297A3 (en) * | 1987-08-20 | 1990-02-28 | Eastman Kodak Company (A New Jersey Corporation) | Color photographic element |
| EP0368271A1 (en) * | 1988-11-09 | 1990-05-16 | Fuji Photo Film Co., Ltd. | Silver halide color photographic material |
| US5114837A (en) * | 1988-11-09 | 1992-05-19 | Fuji Photo Film Co., Ltd. | Silver halide color photographic material |
Also Published As
| Publication number | Publication date |
|---|---|
| US2647833A (en) | 1953-08-04 |
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