GB539509A - Improvements in or relating to the production of colour photographs - Google Patents
Improvements in or relating to the production of colour photographsInfo
- Publication number
- GB539509A GB539509A GB602/40A GB60240A GB539509A GB 539509 A GB539509 A GB 539509A GB 602/40 A GB602/40 A GB 602/40A GB 60240 A GB60240 A GB 60240A GB 539509 A GB539509 A GB 539509A
- Authority
- GB
- United Kingdom
- Prior art keywords
- dye
- acid
- image
- silver
- tetrazotized
- 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
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- 239000000975 dye Substances 0.000 abstract 6
- 239000002253 acid Substances 0.000 abstract 3
- 239000007800 oxidant agent Substances 0.000 abstract 3
- -1 potassium ferricyanide Chemical compound 0.000 abstract 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 abstract 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract 2
- 239000000987 azo dye Substances 0.000 abstract 2
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 abstract 2
- 229910052709 silver Inorganic materials 0.000 abstract 2
- 239000004332 silver Substances 0.000 abstract 2
- 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 2
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 abstract 2
- AJIRUIWLEVHQMU-UHFFFAOYSA-N 3-aminophenazin-2-ol Chemical compound C1=CC=C2N=C(C=C(C(N)=C3)O)C3=NC2=C1 AJIRUIWLEVHQMU-UHFFFAOYSA-N 0.000 abstract 1
- BMYNFMYTOJXKLE-UHFFFAOYSA-N 3-azaniumyl-2-hydroxypropanoate Chemical compound NCC(O)C(O)=O BMYNFMYTOJXKLE-UHFFFAOYSA-N 0.000 abstract 1
- CFKMVGJGLGKFKI-UHFFFAOYSA-N 4-chloro-m-cresol Chemical compound CC1=CC(O)=CC=C1Cl CFKMVGJGLGKFKI-UHFFFAOYSA-N 0.000 abstract 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 abstract 1
- 229910021578 Iron(III) chloride Inorganic materials 0.000 abstract 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 abstract 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 abstract 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 abstract 1
- UNTBPXHCXVWYOI-UHFFFAOYSA-O azanium;oxido(dioxo)vanadium Chemical compound [NH4+].[O-][V](=O)=O UNTBPXHCXVWYOI-UHFFFAOYSA-O 0.000 abstract 1
- 238000004061 bleaching Methods 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 abstract 1
- 239000000839 emulsion Substances 0.000 abstract 1
- 239000001046 green dye Substances 0.000 abstract 1
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 abstract 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- AJDUTMFFZHIJEM-UHFFFAOYSA-N n-(9,10-dioxoanthracen-1-yl)-4-[4-[[4-[4-[(9,10-dioxoanthracen-1-yl)carbamoyl]phenyl]phenyl]diazenyl]phenyl]benzamide Chemical compound O=C1C2=CC=CC=C2C(=O)C2=C1C=CC=C2NC(=O)C(C=C1)=CC=C1C(C=C1)=CC=C1N=NC(C=C1)=CC=C1C(C=C1)=CC=C1C(=O)NC1=CC=CC2=C1C(=O)C1=CC=CC=C1C2=O AJDUTMFFZHIJEM-UHFFFAOYSA-N 0.000 abstract 1
- 229910017604 nitric acid Inorganic materials 0.000 abstract 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 abstract 1
- 150000002832 nitroso derivatives Chemical class 0.000 abstract 1
- 235000010333 potassium nitrate Nutrition 0.000 abstract 1
- 239000004323 potassium nitrate Substances 0.000 abstract 1
- ZNNZYHKDIALBAK-UHFFFAOYSA-M potassium thiocyanate Chemical compound [K+].[S-]C#N ZNNZYHKDIALBAK-UHFFFAOYSA-M 0.000 abstract 1
- 229940116357 potassium thiocyanate Drugs 0.000 abstract 1
- 239000001043 yellow dye Substances 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
- G03C7/28—Silver dye bleach processes; Materials therefor; Preparing or processing such materials
-
- 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
- G03C7/42—Bleach-fixing or agents therefor ; Desilvering processes
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Abstract
539,509. Coloured photographic images. KODAK, Ltd. (Eastman Kodak Co.). Jan. 11, 1940, No. 602. [Class 98 (ii)] In the production of a coloured photographic image in an exposed silver salt emulsion containing a dye capable of being de-colourized by reduction by means of the silver dye-bleaching process, the image-forming dye, after development but without fixing, is bleached locally in a single bath which contains free acid and a mild oxidizing agent whereby it dissolves all silver salt and silver in the layer. The dye image may be produced with a pre-determined contrast by the selection of a suitable amount of mild oxidizing agent. The dye is preferably an azo dye, and the free acid may be hydrochloric, hydrobromic, hydroiodic, nitric, or phosphoric acid. The oxidizing agents include ferric chloride, potassium ferricyanide, ammonium vanadate, vanadyl chloride, potassium nitrate, and soluble nitro or nitroso compounds or azo dyes. Catalysts such as 2-hydroxy-3-aminophenazine or 2:3-dimethylquinoxaline may be used. Numerous examples of dye-destruction baths are given, all of which include potassium thiocyanate or thiourea. The dyes for a threelayer film may be (a) the yellow dye from tetrazotized tolidine-disulphonic acid coupled with 2-chloro-5-hydroxytoluene, (b) the magenta dye from tetrazotized 2:5:2<SP>1</SP>:5<SP>1</SP>-tetraethyl-4:4<SP>1</SP>-diaminotriphenylmethane coupled with acetyl H-acid, and (c) a blue-green dye whose preparation is given.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB602/40A GB539509A (en) | 1940-01-11 | 1940-01-11 | Improvements in or relating to the production of colour photographs |
| US364548A US2322084A (en) | 1940-01-11 | 1940-11-06 | Simultaneous bleaching and fixing bath |
| DEK160042D DE735672C (en) | 1940-01-11 | 1941-02-05 | Combined bleaching and fixing bath |
| FR876360D FR876360A (en) | 1940-01-11 | 1941-10-27 | Improvements in obtaining color photographs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB602/40A GB539509A (en) | 1940-01-11 | 1940-01-11 | Improvements in or relating to the production of colour photographs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB539509A true GB539509A (en) | 1941-09-15 |
Family
ID=9707267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB602/40A Expired GB539509A (en) | 1940-01-11 | 1940-01-11 | Improvements in or relating to the production of colour photographs |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2322084A (en) |
| DE (1) | DE735672C (en) |
| FR (1) | FR876360A (en) |
| GB (1) | GB539509A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3156561A (en) * | 1958-06-03 | 1964-11-10 | Ciba Geigy Corp | Method of producing color photographic pictures |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB565146A (en) * | 1943-06-23 | 1944-10-27 | Eastman Kodak Co | Improvements relating to photographic fixing solutions |
| DE947221C (en) * | 1944-03-03 | 1956-08-09 | Agfa Ag Fuer Photofabrikation | Process for the simultaneous bleaching and fixing of chromogenically developed color images |
| US2434272A (en) * | 1944-05-03 | 1948-01-13 | Eastman Kodak Co | Color photography with azosubstituted couplers |
| US2494765A (en) * | 1944-11-10 | 1950-01-17 | Keuffel & Esser Co | Chemical erasing of photographic silver images |
| US2756151A (en) * | 1952-08-01 | 1956-07-24 | Eastman Kodak Co | Reduction of dye stain in processed photographic papers containing dyes |
| DE1039839B (en) * | 1957-07-04 | 1958-09-25 | Agfa Ag | Process for the production of color images by the silver dye bleaching process using azo dyes |
| DE1041355B (en) * | 1957-07-05 | 1958-10-16 | Agfa Ag | Process for the production of color images by the silver dye bleaching process using azo dyes |
| DE1039840B (en) * | 1957-07-13 | 1958-09-25 | Agfa Ag | Process for the production of color images by the silver dye bleaching process using azo dyes |
| NL286940A (en) * | 1961-12-20 | |||
| US3520688A (en) * | 1967-05-25 | 1970-07-14 | Itek Corp | Photographic process comprising improved dye bleaching step |
| CH511456A (en) * | 1969-07-30 | 1971-08-15 | Ciba Geigy Ag | Process for removing metallic silver from photographic material |
| US3773510A (en) * | 1971-06-26 | 1973-11-20 | Minnesota Mining & Mfg | Additives to bleach/fix baths |
| CH584914A5 (en) * | 1973-10-12 | 1977-02-15 | Ciba Geigy Ag | |
| CH594912A5 (en) * | 1974-07-10 | 1978-01-31 | Ciba Geigy Ag | |
| JPS522433A (en) * | 1975-06-23 | 1977-01-10 | Fuji Photo Film Co Ltd | Single bath color element silver branching liquid |
| US4125402A (en) * | 1976-08-19 | 1978-11-14 | Ciba-Geigy Ag | Method of processing silver dye bleaching materials and preparations suitable for the dye and silver bleaching |
| CH627006A5 (en) * | 1977-03-23 | 1981-12-15 | Ciba Geigy Ag | |
| US4304846A (en) * | 1979-02-09 | 1981-12-08 | Ciba-Geigy Ag | Method for processing silver dye-bleach materials |
| US6221570B1 (en) * | 2000-01-06 | 2001-04-24 | Trebla Chemical Company | One-part bleach-fix liquid concentrates |
-
1940
- 1940-01-11 GB GB602/40A patent/GB539509A/en not_active Expired
- 1940-11-06 US US364548A patent/US2322084A/en not_active Expired - Lifetime
-
1941
- 1941-02-05 DE DEK160042D patent/DE735672C/en not_active Expired
- 1941-10-27 FR FR876360D patent/FR876360A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3156561A (en) * | 1958-06-03 | 1964-11-10 | Ciba Geigy Corp | Method of producing color photographic pictures |
Also Published As
| Publication number | Publication date |
|---|---|
| DE735672C (en) | 1943-05-24 |
| FR876360A (en) | 1942-11-04 |
| US2322084A (en) | 1943-06-15 |
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