US2146040A - Development of silver halide emulsions in color - Google Patents
Development of silver halide emulsions in color Download PDFInfo
- Publication number
- US2146040A US2146040A US74816A US7481636A US2146040A US 2146040 A US2146040 A US 2146040A US 74816 A US74816 A US 74816A US 7481636 A US7481636 A US 7481636A US 2146040 A US2146040 A US 2146040A
- Authority
- US
- United States
- Prior art keywords
- silver halide
- color
- development
- halide emulsions
- methylaminophenol
- 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
- 229910052709 silver Inorganic materials 0.000 title description 11
- 239000004332 silver Substances 0.000 title description 11
- -1 silver halide Chemical class 0.000 title description 11
- 239000000839 emulsion Substances 0.000 title description 7
- 239000003513 alkali Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- PLIKAWJENQZMHA-UHFFFAOYSA-N 4-aminophenol Chemical compound NC1=CC=C(O)C=C1 PLIKAWJENQZMHA-UHFFFAOYSA-N 0.000 description 2
- ZWQFXBVGOKOTHW-UHFFFAOYSA-N 4-chloro-2-(methylamino)phenol Chemical compound CNC1=CC(Cl)=CC=C1O ZWQFXBVGOKOTHW-UHFFFAOYSA-N 0.000 description 2
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- YCIMNLLNPGFGHC-UHFFFAOYSA-N catechol Chemical compound OC1=CC=CC=C1O YCIMNLLNPGFGHC-UHFFFAOYSA-N 0.000 description 2
- 239000003518 caustics Substances 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- 150000002367 halogens Chemical class 0.000 description 2
- 229910000027 potassium carbonate Inorganic materials 0.000 description 2
- WQGWDDDVZFFDIG-UHFFFAOYSA-N pyrogallol Chemical compound OC1=CC=CC(O)=C1O WQGWDDDVZFFDIG-UHFFFAOYSA-N 0.000 description 2
- 125000001424 substituent group Chemical group 0.000 description 2
- JHKKTXXMAQLGJB-UHFFFAOYSA-N 2-(methylamino)phenol Chemical compound CNC1=CC=CC=C1O JHKKTXXMAQLGJB-UHFFFAOYSA-N 0.000 description 1
- AQKZXSVMAROISC-UHFFFAOYSA-N 5-chloro-2-(methylamino)phenol Chemical compound CNC1=CC=C(Cl)C=C1O AQKZXSVMAROISC-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 125000004663 dialkyl amino group Chemical group 0.000 description 1
- 125000002147 dimethylamino group Chemical group [H]C([H])([H])N(*)C([H])([H])[H] 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 125000001570 methylene group Chemical group [H]C([H])([*:1])[*:2] 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- HKOOXMFOFWEVGF-UHFFFAOYSA-N phenylhydrazine Chemical compound NNC1=CC=CC=C1 HKOOXMFOFWEVGF-UHFFFAOYSA-N 0.000 description 1
- 229940079877 pyrogallol Drugs 0.000 description 1
- 150000004060 quinone imines Chemical class 0.000 description 1
- JBJWASZNUJCEKT-UHFFFAOYSA-M sodium;hydroxide;hydrate Chemical compound O.[OH-].[Na+] JBJWASZNUJCEKT-UHFFFAOYSA-M 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 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
- G03C7/26—Silver halide emulsions for subtractive colour processes
-
- 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
- G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
- G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
- G03C5/29—Development processes or agents therefor
- G03C5/30—Developers
- G03C5/3021—Developers with oxydisable hydroxyl or amine groups linked to an aromatic ring
Definitions
- Our present invention relates to development of silver halide emulsions in color.
- One of its objects is to provide a process of developing silver halide emulsions in color.
- silver halide layers can be developed in colors.
- para-aminophenol or dialkyll0 amino-aniline in admixture with phenol, aniline or such substances as contain a methylene-group capable of reaction.
- the picture obtained contains silver and the dyestuff, the latter being a quinone-imine dyestufi or an azomethine, accordla ing to the nature of the selected components.
- Another process consists in using certain polyhydric phenols, such as pyrocatechol or pyrogallol, in an alkaline solution without a sulphite. Both processes suffer from the disadvantage that the solutions have little stability; moreover, the last-named developers give tints which are not very pleasing.
- the present invention depends on the observation that very beautiful pictures in colors are obtained when an ortho-methyl-aminophenol or a. substitution product thereof acts on the silver halide layer in a solution alkaline with alkali carbonate or caustic alkali. After separating the silver, for example with farmers reducer.
- the substituents may be alkyl, such as methyl or ethyl, halogen, alkoxy, such as methoxy or ethoxy, or an aminogroup, or a. dialkyl amino-group, such as a dimethylamino-group or a diethylamlnogroup.
- the compounds containing halogen as a substituent have proved to give the best effect.
- Suitable ortho-methylaminophenols are, for instance, ortho-methylaminophenol giving a yellow color, 4-chlor-ortho-methylaminophenol giving a brown color, 5-chlor-ortho-methylaminophenol and 4,5-dimethyl-ortho-methylaminophenol giving a yellow color, 4-chlor-6-aminoortho-methylaminophenol giving a brown color,
- a process of developing an exposed silver halide emulsion in color which comprises depositing a dyestuif on the exposed silver halide by treating the exposed silver halide emulsion with a developing solution consisting of an orthomethylaminophenol, water and an alkali selected from the class consisting of alkali carbonates and caustic alkalies.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEI0052145 | 1935-04-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2146040A true US2146040A (en) | 1939-02-07 |
Family
ID=7193266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US74816A Expired - Lifetime US2146040A (en) | 1935-04-17 | 1936-04-16 | Development of silver halide emulsions in color |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2146040A (en(2012)) |
| BE (1) | BE414966A (en(2012)) |
| ES (1) | ES142001A1 (en(2012)) |
| FR (1) | FR804649A (en(2012)) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2506622A (en) * | 1944-03-11 | 1950-05-09 | Technicolor Motion Picture | Elimination of preservative sulfite from photographic developers prior to use in color development |
| US3077402A (en) * | 1954-12-06 | 1963-02-12 | Polaroid Corp | Photographic color processes, products, and compositions |
| US4342818A (en) * | 1979-12-25 | 1982-08-03 | Fuji Photo Film Co., Ltd. | Process for forming color filter |
-
0
- BE BE414966D patent/BE414966A/xx unknown
-
1936
- 1936-04-07 FR FR804649D patent/FR804649A/fr not_active Expired
- 1936-04-16 US US74816A patent/US2146040A/en not_active Expired - Lifetime
- 1936-04-16 ES ES0142001A patent/ES142001A1/es not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2506622A (en) * | 1944-03-11 | 1950-05-09 | Technicolor Motion Picture | Elimination of preservative sulfite from photographic developers prior to use in color development |
| US3077402A (en) * | 1954-12-06 | 1963-02-12 | Polaroid Corp | Photographic color processes, products, and compositions |
| US4342818A (en) * | 1979-12-25 | 1982-08-03 | Fuji Photo Film Co., Ltd. | Process for forming color filter |
Also Published As
| Publication number | Publication date |
|---|---|
| FR804649A (fr) | 1936-10-28 |
| ES142001A1 (es) | 1936-08-01 |
| BE414966A (en(2012)) |
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