GB511535A - Improvements in and relating to colour photography - Google Patents
Improvements in and relating to colour photographyInfo
- Publication number
- GB511535A GB511535A GB4946/38A GB494638A GB511535A GB 511535 A GB511535 A GB 511535A GB 4946/38 A GB4946/38 A GB 4946/38A GB 494638 A GB494638 A GB 494638A GB 511535 A GB511535 A GB 511535A
- Authority
- GB
- United Kingdom
- Prior art keywords
- layer
- colour
- developed
- film
- exposed
- 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 5
- 239000004332 silver Substances 0.000 abstract 4
- 229910052709 silver Inorganic materials 0.000 abstract 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract 3
- BZORFPDSXLZWJF-UHFFFAOYSA-N N,N-dimethyl-1,4-phenylenediamine Chemical compound CN(C)C1=CC=C(N)C=C1 BZORFPDSXLZWJF-UHFFFAOYSA-N 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- 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 2
- 239000004149 tartrazine Substances 0.000 abstract 2
- 229960000943 tartrazine Drugs 0.000 abstract 2
- 235000012756 tartrazine Nutrition 0.000 abstract 2
- PVRZMTHMPKVOBP-UHFFFAOYSA-N 1-n,4-n-dimethylbenzene-1,4-diamine Chemical compound CNC1=CC=C(NC)C=C1 PVRZMTHMPKVOBP-UHFFFAOYSA-N 0.000 abstract 1
- KJCVRFUGPWSIIH-UHFFFAOYSA-N 1-naphthol Chemical compound C1=CC=C2C(O)=CC=CC2=C1 KJCVRFUGPWSIIH-UHFFFAOYSA-N 0.000 abstract 1
- 239000001828 Gelatine Substances 0.000 abstract 1
- DYRDKSSFIWVSNM-UHFFFAOYSA-N acetoacetanilide Chemical compound CC(=O)CC(=O)NC1=CC=CC=C1 DYRDKSSFIWVSNM-UHFFFAOYSA-N 0.000 abstract 1
- 239000003638 chemical reducing agent Substances 0.000 abstract 1
- 238000004043 dyeing Methods 0.000 abstract 1
- 229920000159 gelatin Polymers 0.000 abstract 1
- 235000019322 gelatine Nutrition 0.000 abstract 1
- 150000004820 halides Chemical class 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- -1 silver halide Chemical class 0.000 abstract 1
- GGCZERPQGJTIQP-UHFFFAOYSA-N sodium;9,10-dioxoanthracene-2-sulfonic acid Chemical compound [Na+].C1=CC=C2C(=O)C3=CC(S(=O)(=O)O)=CC=C3C(=O)C2=C1 GGCZERPQGJTIQP-UHFFFAOYSA-N 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
Abstract
511,535. Colour photography. GEVAERT PHOTO-PRODUCTEN N. V. Feb. 17, 1938, No. 4946. Convention date, March 30, 1937. [Class 98 (ii)] To produce colour photographs on multilayer material, light-sensitive silver salt images are formed in each layer and the film is exposed to uniform light of such a character that it is totally absorbed in an outer emulsion layer so that the image in that layer may be colour-developed separately. In one exmple, three-layer material, with layers sensitive to blue. green, and red (nearest support) is exposed, developed, and fixed, and the silver converted to halide. The emulsion layer nearest the support is then illuminated through the support with ultra-violet light which is strongly absorbed by the gelatine and does not penetrate to the two other layers. The exposed layer is then colour-developed with a developer containing dimethyl-p-phenylenediamine and alphanapthol. After dyeing the film with tartrazine, it is illuminated from the other side with ultra-violet light, so that only the outer emulsion is affected, and this emulsion is colourdeveloped with a developer containing dimethylp-phenylenediamine and acetoacetanilide. The film is thereafter exposed to white light and the middle layer colour-developed with a developer containing dimethyl-p-phenylenediamine and pnitrobenzylcyanide. The developed silver is finally removed, as with Farmers' reducer. In a modification, after the layer nearest the support has been treated as described above, the silver may be removed therefrom and the film dyed with tartrazine and exposed to dark blue light from the support side. This penetrates the image in the lower-most emulsion layer but is absorbed in the middle layer which may then be colour developed. The upper layer is then treated with white light and colour-developed as before. Instead of treating a film containing negative silver halide images as above, the film may be reversed after camera exposure and then treated as described.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT511535X | 1937-03-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB511535A true GB511535A (en) | 1939-08-21 |
Family
ID=3675583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4946/38A Expired GB511535A (en) | 1937-03-30 | 1938-02-17 | Improvements in and relating to colour photography |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2251965A (en) |
| BE (1) | BE427106A (en) |
| FR (1) | FR835567A (en) |
| GB (1) | GB511535A (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE479270A (en) * | 1945-11-28 | |||
| FR960009A (en) * | 1947-01-24 | 1950-04-12 | ||
| FR961137A (en) * | 1947-02-17 | 1950-05-05 | ||
| US2644096A (en) * | 1948-02-25 | 1953-06-30 | Radiograph Dev Corp | Color radiography |
| US2653874A (en) * | 1949-04-15 | 1953-09-29 | Bela Gaspar | Process for the production of color photographic images |
| US2978324A (en) * | 1953-02-27 | 1961-04-04 | Koch Processes Ltd | Half-tone printing blocks |
| US2927020A (en) * | 1954-08-16 | 1960-03-01 | David A Zilli | Photographic process |
| BE568197A (en) * | 1957-06-12 | |||
| US3402046A (en) * | 1963-09-23 | 1968-09-17 | Eastman Kodak Co | Multilayer color photographic elements |
| US3637388A (en) * | 1967-12-18 | 1972-01-25 | Agfa Gevaert Ag | Process for the photographic production of equidensities |
| US6733381B1 (en) | 2003-07-18 | 2004-05-11 | Kurt Ploeger | Roof vent and method of installation |
-
0
- BE BE427106D patent/BE427106A/xx unknown
-
1938
- 1938-02-17 GB GB4946/38A patent/GB511535A/en not_active Expired
- 1938-03-11 US US195386A patent/US2251965A/en not_active Expired - Lifetime
- 1938-03-22 FR FR835567D patent/FR835567A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE427106A (en) | |
| US2251965A (en) | 1941-08-12 |
| FR835567A (en) | 1938-12-26 |
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