US1954452A - Method of making color photographs - Google Patents
Method of making color photographs Download PDFInfo
- Publication number
- US1954452A US1954452A US437267A US43726730A US1954452A US 1954452 A US1954452 A US 1954452A US 437267 A US437267 A US 437267A US 43726730 A US43726730 A US 43726730A US 1954452 A US1954452 A US 1954452A
- Authority
- US
- United States
- Prior art keywords
- color
- silver
- image
- images
- 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 - Lifetime
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
- G03C7/30—Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials
Definitions
- a second method involving no substantial change in the manufacture of the sensitive material described in the previous patents and application referred to, is to separate the treatment of the developed, fixed and washed film or plate for subsequent coloring by methods of controlled diffusion of chemical solutions employed as disclosed in our prior patents.
- the coatings may be simultaneously bleached in potassium ferricyanide and the upper one (or two in the case .of triple-coating) alone redeveloped by controlled diffusion of a concentrated developer.
- the undeveloped lower layer still containing an image-record in silver ferrocyanide, may be developed by immersionin a color-forming developer as described above which will not affect the redeveloped silver of the upper layer or layers.
- the plate, or film may be fixed in sodium thiosulfate, washed, and then dried, and the remaining layer or layers bleached tosilver ferrocyanide, for redevelopment in another color-forming developer, and so on to the third coating in 5 the case ofthree-color photography.
- the remaining metallic silver formed in the color developers is removed by solution in sodium thiosulfate and potassium ferrocyanide, or some other solvent of silver.
- the colored negative is printed on a similarly coated positive which in turn is color-developed substantially as described for the negative.
- the surface record may be dissolved and removed after drying and the remaining lower layers treated for the two colors only. This method of treatment of the exposed plate may also be applied to triple coatings.
- Paraphenylenediamines and paramidophenols are typical developers used in conjunction with the color-formers.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DENDAT616941D DE616941C (xx) | 1930-03-19 | ||
BE376782D BE376782A (xx) | 1930-03-19 | ||
US437267A US1954452A (en) | 1930-03-19 | 1930-03-19 | Method of making color photographs |
GB15226/32A GB376838A (en) | 1930-03-19 | 1931-01-16 | Improvements in processes for the production of colour photographs |
FR709707D FR709707A (fr) | 1930-03-19 | 1931-01-20 | Film photographique et procédé pour l'établir |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US437267A US1954452A (en) | 1930-03-19 | 1930-03-19 | Method of making color photographs |
Publications (1)
Publication Number | Publication Date |
---|---|
US1954452A true US1954452A (en) | 1934-04-10 |
Family
ID=23735743
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US437267A Expired - Lifetime US1954452A (en) | 1930-03-19 | 1930-03-19 | Method of making color photographs |
Country Status (5)
Country | Link |
---|---|
US (1) | US1954452A (xx) |
BE (1) | BE376782A (xx) |
DE (1) | DE616941C (xx) |
FR (1) | FR709707A (xx) |
GB (1) | GB376838A (xx) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2561299A (en) * | 1945-07-23 | 1951-07-17 | Fraunhofer Hans Von | Color cinematography |
US2567712A (en) * | 1945-06-07 | 1951-09-11 | Du Pont | Element for recording photographic images |
US2571725A (en) * | 1946-08-15 | 1951-10-16 | Eastman Kodak Co | Eliminating stain in photographic color material |
US2705200A (en) * | 1950-11-15 | 1955-03-29 | Gen Aniline & Film Corp | Bipack color film containing nondiffusing color formers and processing thereof |
US2884325A (en) * | 1954-03-05 | 1959-04-28 | Agfa Ag | Process for the production of a yellow mask image in magenta-colored photographic images |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL49147C (xx) * | 1935-04-10 | |||
DE759108C (de) * | 1935-10-03 | 1952-10-27 | Ig Farbenindustrie Ag | Verfahren zur Herstellung von Mehrfarbenbildern mit Hilfe von Mehrschichtenfilmen durch farbgebende Entwicklung |
DE969811C (de) * | 1938-12-18 | 1958-07-17 | Agfa Ag | Verfahren zur Herstellung von kinematographischen Mehrfarbenbildern mit Tonaufzeichnung |
-
0
- BE BE376782D patent/BE376782A/xx unknown
- DE DENDAT616941D patent/DE616941C/de active Active
-
1930
- 1930-03-19 US US437267A patent/US1954452A/en not_active Expired - Lifetime
-
1931
- 1931-01-16 GB GB15226/32A patent/GB376838A/en not_active Expired
- 1931-01-20 FR FR709707D patent/FR709707A/fr not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2567712A (en) * | 1945-06-07 | 1951-09-11 | Du Pont | Element for recording photographic images |
US2561299A (en) * | 1945-07-23 | 1951-07-17 | Fraunhofer Hans Von | Color cinematography |
US2571725A (en) * | 1946-08-15 | 1951-10-16 | Eastman Kodak Co | Eliminating stain in photographic color material |
US2705200A (en) * | 1950-11-15 | 1955-03-29 | Gen Aniline & Film Corp | Bipack color film containing nondiffusing color formers and processing thereof |
US2884325A (en) * | 1954-03-05 | 1959-04-28 | Agfa Ag | Process for the production of a yellow mask image in magenta-colored photographic images |
Also Published As
Publication number | Publication date |
---|---|
GB376838A (en) | 1932-07-18 |
DE616941C (xx) | |
BE376782A (xx) | |
FR709707A (fr) | 1931-08-12 |
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