US2286662A - Color photography - Google Patents
Color photography Download PDFInfo
- Publication number
- US2286662A US2286662A US292608A US29260839A US2286662A US 2286662 A US2286662 A US 2286662A US 292608 A US292608 A US 292608A US 29260839 A US29260839 A US 29260839A US 2286662 A US2286662 A US 2286662A
- Authority
- US
- United States
- Prior art keywords
- color
- filed
- emulsion layers
- layers
- reducing agent
- 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
- 239000000839 emulsion Substances 0.000 description 23
- 239000000463 material Substances 0.000 description 12
- 239000003638 chemical reducing agent Substances 0.000 description 10
- -1 silver halide Chemical class 0.000 description 10
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 9
- 229910052709 silver Inorganic materials 0.000 description 9
- 239000004332 silver Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 6
- 239000000126 substance Substances 0.000 description 5
- WTDHULULXKLSOZ-UHFFFAOYSA-N Hydroxylamine hydrochloride Chemical compound Cl.ON WTDHULULXKLSOZ-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- IOLCXVTUBQKXJR-UHFFFAOYSA-M potassium bromide Chemical compound [K+].[Br-] IOLCXVTUBQKXJR-UHFFFAOYSA-M 0.000 description 4
- 125000003277 amino group Chemical group 0.000 description 3
- 229940093956 potassium carbonate Drugs 0.000 description 3
- 229910000027 potassium carbonate Inorganic materials 0.000 description 3
- 235000011181 potassium carbonates Nutrition 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- QNGVNLMMEQUVQK-UHFFFAOYSA-N 4-n,4-n-diethylbenzene-1,4-diamine Chemical compound CCN(CC)C1=CC=C(N)C=C1 QNGVNLMMEQUVQK-UHFFFAOYSA-N 0.000 description 2
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 2
- 150000002429 hydrazines Chemical class 0.000 description 2
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 2
- CBCKQZAAMUWICA-UHFFFAOYSA-N 1,4-phenylenediamine Chemical compound NC1=CC=C(N)C=C1 CBCKQZAAMUWICA-UHFFFAOYSA-N 0.000 description 1
- IOMZCWUHFGMSEJ-UHFFFAOYSA-N 4-(azaniumylamino)benzenesulfonate Chemical compound NNC1=CC=C(S(O)(=O)=O)C=C1 IOMZCWUHFGMSEJ-UHFFFAOYSA-N 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- AVXURJPOCDRRFD-UHFFFAOYSA-N Hydroxylamine Chemical compound ON AVXURJPOCDRRFD-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- UOBCZXSWQQWTGC-UHFFFAOYSA-N amino(phenyl)carbamic acid Chemical compound OC(=O)N(N)C1=CC=CC=C1 UOBCZXSWQQWTGC-UHFFFAOYSA-N 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000003467 diminishing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- OAKJQQAXSVQMHS-UHFFFAOYSA-N hydrazine Substances NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 1
- 150000002443 hydroxylamines Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229940067157 phenylhydrazine Drugs 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Definitions
- An additional object of the invention resides in theprovision of a process in which this reducing agent which hinders the formation of the fog isadded to the developer solution.
- Yet another object of the invention is to provide a process in which this Ireducingagent is. incorporated to the emulsion layers, to the filter layers or in other layers or backings.
- a further object of the invention consists in the provision of a process in which this reducing agent is added to the emulsion before the layer is cast.
- Suitable reducing agents are, for example, hy-
- diphenylhydrazine and its derivatives andorganic hydrazine compounds for example phenylhydrazine sulfonic acid or phenylhydrazine carboxylic acid.
- the filter layers'comprising colloidal silver may ent No. 816,296.
- the antihalation layer seeder instance French Patent No. 840,563
- the multi-layer material for color photography which is to be used in the invention may contain in the layers .be made for instance as described in French Pattions of suitable-developers:
- ,Developer solutions containing the reducing agent may be used also for other photographic I materials inwhich the color picture is produced a by color development since byaddition of the reducing agent there is ,no ill effect produced on the action of the developer.
- Example 1 Water I c 1000 Potassium carbonate. grams 50 yl-t ara-phenylenediamine; 1 3 Potassium bromide
- Example 2 Water c "1000 Potassium carbonate grams Diethyl-para-phenylenediamine do s do Hydroxylamine hydrochloride do Sodium sulfite sicc do
- Example 3 Water 1000 Potassiumcarbonate grams Diethyl-para phenylenediamine -do 3 Potassium bromide do 1 Phem'rlhydrazine-B-sulfonic-acid do 5
- Example 4' To a photographic halide silver emulsion whic contains a color former fast to difiusion there are prescriprln 1 1 Hydroxylamine hydrochloride do 5 added per kilo of the emulsion 5 grams of paraphenylhydrazlne sulfonic acid.
- Example 5 I An emulsion ofthe sparingly soluble lead salt of para-.phenylhydrazine carboxylic acid is made and then added to the colloidal silver solution which is to serve as a yellow filter.
- a multi-layer material for color development comprising silver halide emulsion layers I containing color formers between two adjacent material, the several emulsion layers containing ment comprising silver halide emulsion layers containing color formers between two adjacent emulsion layers a yellow filter carrying colloidal silver, at least one of said layers containing a reducing agent capable of being more easily oxidized than is the substanc'e'in the developer which couples to form the color and of reventing formation of color fog during development of said material.
- a multi-layer material for color develop- ,ment comprising silver halide emulsion layers containing color formers, at least one of said emulsion layers containing a reducing agent capable of being more easily oxidized than is the emulsion layers a yellow filter carrying colloidal silver, at least one of said filter layers containing a reducing agent capable of being more easily oxidized than isthe substance in the developer which couples to form the color and of preventing formation of color fog during development of said material.
- a multi-layer material for color development comprising silver halide emulsion layers containing 'color' formers between two adjacent emulsion layers a yellow filter carrying colloidal silver, at least one of said layers containing hydroxylamine.
- a multi-layer material for color development comprising silver halide emulsion layers containing color formers between two adjacent emulsion layers a yellow filter carrying colloidal silver, at
Landscapes
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEI0062380 | 1938-09-02 | ||
| DEI0065112 | 1939-07-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2286662A true US2286662A (en) | 1942-06-16 |
Family
ID=25982095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US292608A Expired - Lifetime US2286662A (en) | 1938-09-02 | 1939-08-30 | Color photography |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2286662A (enrdf_load_stackoverflow) |
| BE (1) | BE436252A (enrdf_load_stackoverflow) |
| CH (2) | CH223973A (enrdf_load_stackoverflow) |
| FR (1) | FR860020A (enrdf_load_stackoverflow) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2419975A (en) * | 1943-08-26 | 1947-05-06 | Eastman Kodak Co | Increasing speed and contrast of photographic emulsions |
| US2423767A (en) * | 1944-02-03 | 1947-07-08 | Ilford Ltd | Tone-control agents for silver halide emulsions |
| US2430254A (en) * | 1942-12-23 | 1947-11-04 | Rca Corp | Fibrous sheet material for producing dyes thereon by electrolytic oxidation |
| US2433632A (en) * | 1942-12-23 | 1947-12-30 | Rca Corp | Fibrous sheet material for the electrolytic formation of azo dye image records thereon |
| US2435700A (en) * | 1942-12-23 | 1948-02-10 | Nellie W Solomon | Process of electrolytically producing azo dyes on a fibrous sheet material and the fibrous sheet material for said process |
| US2440526A (en) * | 1942-12-23 | 1948-04-27 | Nellie W Solomon | Fibrous sheet material for the electrolytic formation of an azo dyestuff thereon |
| US2440954A (en) * | 1945-08-23 | 1948-05-04 | Du Pont | Process for eliminating stain from color-yielding elements by treatment with aromatic aldehydes containing an acyl group |
| US2449153A (en) * | 1944-04-03 | 1948-09-14 | Urbach Franz | Photographic silver bromide emulsion sensitized with cysteine |
| DE1056478B (de) * | 1956-11-05 | 1959-04-30 | Eastman Kodak Co | Verfahren zum Haltbarmachen farbphotographischer Farbentwickler-loesungen |
| US2923627A (en) * | 1957-04-17 | 1960-02-02 | Ilford Ltd | Colour photography |
| US3168400A (en) * | 1961-05-22 | 1965-02-02 | Eastman Kodak Co | Rapid processing of photographic color materials |
| US4168977A (en) * | 1976-08-11 | 1979-09-25 | Fuji Photo Film Co., Ltd. | Silver halide photographic emulsion |
| US4192679A (en) * | 1978-11-15 | 1980-03-11 | Eastman Kodak Company | Bifunctional benzisoxazolone compounds |
| US4192678A (en) * | 1978-11-15 | 1980-03-11 | Eastman Kodak Company | N-alkyl- or N-aryl-benzisoxazolone scavenger compounds |
| US4377634A (en) * | 1977-09-06 | 1983-03-22 | Fuji Photo Film Co., Ltd. | Method for forming high contrast photographic image |
| US12112612B2 (en) | 2018-06-29 | 2024-10-08 | Smart Wave Technologies, Inc. | Pest control system having event monitoring |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE766135C (de) * | 1941-09-22 | 1954-01-04 | Ig Farbenindustrie Ag | Verfahren zur Vermeidung von Farbschleiern bei der Farbentwicklung |
| DE967543C (de) * | 1955-05-07 | 1957-11-21 | C Schleussner Fotowerke G M B | Verfahren zur Herstellung photographischer direkt-positiver Ein- und Mehrfarbenbilder mittels chromogener Entwicklung |
-
0
- BE BE436252D patent/BE436252A/xx unknown
-
1939
- 1939-08-30 US US292608A patent/US2286662A/en not_active Expired - Lifetime
- 1939-09-02 CH CH223973D patent/CH223973A/de unknown
- 1939-09-02 CH CH219952D patent/CH219952A/de unknown
- 1939-09-02 FR FR860020D patent/FR860020A/fr not_active Expired
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2430254A (en) * | 1942-12-23 | 1947-11-04 | Rca Corp | Fibrous sheet material for producing dyes thereon by electrolytic oxidation |
| US2433632A (en) * | 1942-12-23 | 1947-12-30 | Rca Corp | Fibrous sheet material for the electrolytic formation of azo dye image records thereon |
| US2435700A (en) * | 1942-12-23 | 1948-02-10 | Nellie W Solomon | Process of electrolytically producing azo dyes on a fibrous sheet material and the fibrous sheet material for said process |
| US2440526A (en) * | 1942-12-23 | 1948-04-27 | Nellie W Solomon | Fibrous sheet material for the electrolytic formation of an azo dyestuff thereon |
| US2419975A (en) * | 1943-08-26 | 1947-05-06 | Eastman Kodak Co | Increasing speed and contrast of photographic emulsions |
| US2423767A (en) * | 1944-02-03 | 1947-07-08 | Ilford Ltd | Tone-control agents for silver halide emulsions |
| US2449153A (en) * | 1944-04-03 | 1948-09-14 | Urbach Franz | Photographic silver bromide emulsion sensitized with cysteine |
| US2440954A (en) * | 1945-08-23 | 1948-05-04 | Du Pont | Process for eliminating stain from color-yielding elements by treatment with aromatic aldehydes containing an acyl group |
| DE1056478B (de) * | 1956-11-05 | 1959-04-30 | Eastman Kodak Co | Verfahren zum Haltbarmachen farbphotographischer Farbentwickler-loesungen |
| US2923627A (en) * | 1957-04-17 | 1960-02-02 | Ilford Ltd | Colour photography |
| US3168400A (en) * | 1961-05-22 | 1965-02-02 | Eastman Kodak Co | Rapid processing of photographic color materials |
| US4168977A (en) * | 1976-08-11 | 1979-09-25 | Fuji Photo Film Co., Ltd. | Silver halide photographic emulsion |
| US4377634A (en) * | 1977-09-06 | 1983-03-22 | Fuji Photo Film Co., Ltd. | Method for forming high contrast photographic image |
| US4192679A (en) * | 1978-11-15 | 1980-03-11 | Eastman Kodak Company | Bifunctional benzisoxazolone compounds |
| US4192678A (en) * | 1978-11-15 | 1980-03-11 | Eastman Kodak Company | N-alkyl- or N-aryl-benzisoxazolone scavenger compounds |
| US12112612B2 (en) | 2018-06-29 | 2024-10-08 | Smart Wave Technologies, Inc. | Pest control system having event monitoring |
Also Published As
| Publication number | Publication date |
|---|---|
| CH219952A (de) | 1942-03-15 |
| CH223973A (de) | 1942-10-31 |
| BE436252A (enrdf_load_stackoverflow) | |
| FR860020A (fr) | 1941-01-04 |
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