GB208564A - - Google Patents
Info
- Publication number
- GB208564A GB208564A GB31721/23A GB3172123A GB208564A GB 208564 A GB208564 A GB 208564A GB 31721/23 A GB31721/23 A GB 31721/23A GB 3172123 A GB3172123 A GB 3172123A GB 208564 A GB208564 A GB 208564A
- Authority
- GB
- United Kingdom
- Prior art keywords
- layers
- colour
- printing
- opposite sides
- layer
- 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 1
- 238000000034 method Methods 0.000 abstract 1
- 230000000149 penetrating effect Effects 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
- 229960000943 tartrazine Drugs 0.000 abstract 1
- 235000012756 tartrazine Nutrition 0.000 abstract 1
- 239000004149 tartrazine Substances 0.000 abstract 1
- 238000005406 washing Methods 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
- G03C7/20—Subtractive colour processes using differently sensitised films, each coated on its own base, e.g. bipacks, tripacks
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
- Color Printing (AREA)
Abstract
208,564. Compagnie d'Exploitation des ProcÚdÚs de Photographies en Couleurs L. Dufay. May 19, 1922, [Convention date]. Colour photography; films with multiple colour-sensitive layers.-In a process for producing colour photographs by printing from opposite sides, through colour component negatives, on a film of the kind comprising two emulsion layers of different chromatic sensitiveness coated on opposite sides of a transparent support, and in which the layers are coloured for the purpose of preventing the printing-light for one layer from penetrating through the support to the other layer, the layers are, for this purpose, impregnated with tartrazine, which is subsequently removed by washing. Reference has been directed by the Comptroller to Specification 13430/15.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR208564T | 1922-05-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB208564A true GB208564A (en) | 1924-03-28 |
Family
ID=31897587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB31721/23A Expired GB208564A (en) | 1922-05-19 | 1922-12-28 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US1792418A (en) |
| FR (1) | FR563203A (en) |
| GB (1) | GB208564A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5094634A (en) * | 1991-04-11 | 1992-03-10 | Molex Incorporated | Electrical connector employing terminal pins |
-
1922
- 1922-05-19 FR FR563203D patent/FR563203A/en not_active Expired
- 1922-12-28 GB GB31721/23A patent/GB208564A/en not_active Expired
-
1923
- 1923-04-23 US US634185A patent/US1792418A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5094634A (en) * | 1991-04-11 | 1992-03-10 | Molex Incorporated | Electrical connector employing terminal pins |
Also Published As
| Publication number | Publication date |
|---|---|
| US1792418A (en) | 1931-02-10 |
| FR563203A (en) | 1923-11-29 |
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