GB627254A - Improvements in photographic colour printing processes - Google Patents
Improvements in photographic colour printing processesInfo
- Publication number
- GB627254A GB627254A GB20638/46A GB2063846A GB627254A GB 627254 A GB627254 A GB 627254A GB 20638/46 A GB20638/46 A GB 20638/46A GB 2063846 A GB2063846 A GB 2063846A GB 627254 A GB627254 A GB 627254A
- Authority
- GB
- United Kingdom
- Prior art keywords
- image
- colour component
- black
- added
- colour
- 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
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
- G03C7/46—Subtractive processes not covered by the group G03C7/26; Materials therefor; Preparing or processing such materials
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Ink Jet Recording Methods And Recording Media Thereof (AREA)
Abstract
627,254. Colour photography. SOC. NOUVELLE PATHE CINEMA, and BERTRAND, J. P. July 10, 1946, No. 20638. Convention date, Aug. 9, 1945. Drawings to Specification. [Class 98 (ii)] A black and white image formed in a gelatinosilver halide emulsion layer of an ordinary positive film is transformed, by direct toning or through steps involving an intermediate bleaching of the image, into a colour component image, and one or more further colour component images are added by re-sensitizing the same gelatin layer, or an additional gelatin layer coated over the first one, by suitable diazosulphonates and naphthols, and then exposing behind colour component negatives. The first black image may be toned in blue, and then red and yellow images added by the diazosulphonate-naphthol process. Specification 611,134 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR929287T | 1945-08-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB627254A true GB627254A (en) | 1949-08-04 |
Family
ID=9442370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB20638/46A Expired GB627254A (en) | 1945-08-09 | 1946-07-10 | Improvements in photographic colour printing processes |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE466402A (en) |
| FR (1) | FR929287A (en) |
| GB (1) | GB627254A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2790715A (en) * | 1953-11-06 | 1957-04-30 | Papadakis Simeon | Process for the production of photographic images in natural colours by the subtracrive three-colour process |
-
0
- BE BE466402D patent/BE466402A/xx unknown
-
1945
- 1945-08-09 FR FR929287D patent/FR929287A/en not_active Expired
-
1946
- 1946-07-10 GB GB20638/46A patent/GB627254A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2790715A (en) * | 1953-11-06 | 1957-04-30 | Papadakis Simeon | Process for the production of photographic images in natural colours by the subtracrive three-colour process |
Also Published As
| Publication number | Publication date |
|---|---|
| BE466402A (en) | |
| FR929287A (en) | 1947-12-22 |
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