US2875049A - Stabilized photographic developers for color photography - Google Patents
Stabilized photographic developers for color photography Download PDFInfo
- Publication number
- US2875049A US2875049A US620194A US62019456A US2875049A US 2875049 A US2875049 A US 2875049A US 620194 A US620194 A US 620194A US 62019456 A US62019456 A US 62019456A US 2875049 A US2875049 A US 2875049A
- Authority
- US
- United States
- Prior art keywords
- sodium
- color
- color photography
- solution
- photographic developers
- 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
- 239000000243 solution Substances 0.000 description 19
- 239000000463 material Substances 0.000 description 12
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 10
- 239000000203 mixture Substances 0.000 description 7
- CKJBFEQMHZICJP-UHFFFAOYSA-N acetic acid;1,3-diaminopropan-2-ol Chemical compound CC(O)=O.CC(O)=O.CC(O)=O.CC(O)=O.NCC(O)CN CKJBFEQMHZICJP-UHFFFAOYSA-N 0.000 description 5
- 239000002253 acid Substances 0.000 description 5
- -1 alkali metal sulfite Chemical class 0.000 description 5
- 229910052708 sodium Inorganic materials 0.000 description 5
- 239000011734 sodium Substances 0.000 description 5
- 235000010265 sodium sulphite Nutrition 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 4
- 229910052783 alkali metal Inorganic materials 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 150000002443 hydroxylamines Chemical class 0.000 description 4
- IOLCXVTUBQKXJR-UHFFFAOYSA-M potassium bromide Chemical compound [K+].[Br-] IOLCXVTUBQKXJR-UHFFFAOYSA-M 0.000 description 4
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical class NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- GEYOCULIXLDCMW-UHFFFAOYSA-N 1,2-phenylenediamine Chemical compound NC1=CC=CC=C1N GEYOCULIXLDCMW-UHFFFAOYSA-N 0.000 description 2
- BNZCDZDLTIHJAC-UHFFFAOYSA-N 2-azaniumylethylazanium;sulfate Chemical compound NCC[NH3+].OS([O-])(=O)=O BNZCDZDLTIHJAC-UHFFFAOYSA-N 0.000 description 2
- ZNBNBTIDJSKEAM-UHFFFAOYSA-N 4-[7-hydroxy-2-[5-[5-[6-hydroxy-6-(hydroxymethyl)-3,5-dimethyloxan-2-yl]-3-methyloxolan-2-yl]-5-methyloxolan-2-yl]-2,8-dimethyl-1,10-dioxaspiro[4.5]decan-9-yl]-2-methyl-3-propanoyloxypentanoic acid Chemical compound C1C(O)C(C)C(C(C)C(OC(=O)CC)C(C)C(O)=O)OC11OC(C)(C2OC(C)(CC2)C2C(CC(O2)C2C(CC(C)C(O)(CO)O2)C)C)CC1 ZNBNBTIDJSKEAM-UHFFFAOYSA-N 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 2
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000007844 bleaching agent Substances 0.000 description 2
- 229910000378 hydroxylammonium sulfate Inorganic materials 0.000 description 2
- 150000004682 monohydrates Chemical class 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- GRLPQNLYRHEGIJ-UHFFFAOYSA-J potassium aluminium sulfate Chemical compound [Al+3].[K+].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O GRLPQNLYRHEGIJ-UHFFFAOYSA-J 0.000 description 2
- 239000001632 sodium acetate Substances 0.000 description 2
- SHNJHLWLAGUBOV-UHFFFAOYSA-N sodium;oxido(oxo)borane;octahydrate Chemical compound O.O.O.O.O.O.O.O.[Na+].[O-]B=O SHNJHLWLAGUBOV-UHFFFAOYSA-N 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- ZVNPWFOVUDMGRP-UHFFFAOYSA-N 4-methylaminophenol sulfate Chemical compound OS(O)(=O)=O.CNC1=CC=C(O)C=C1.CNC1=CC=C(O)C=C1 ZVNPWFOVUDMGRP-UHFFFAOYSA-N 0.000 description 1
- VVYWUQOTMZEJRJ-UHFFFAOYSA-N 4-n-methylbenzene-1,4-diamine Chemical compound CNC1=CC=C(N)C=C1 VVYWUQOTMZEJRJ-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- AVXURJPOCDRRFD-UHFFFAOYSA-N Hydroxylamine Chemical compound ON AVXURJPOCDRRFD-UHFFFAOYSA-N 0.000 description 1
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- 229960000583 acetic acid Drugs 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910000288 alkali metal carbonate Inorganic materials 0.000 description 1
- 150000008041 alkali metal carbonates Chemical class 0.000 description 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- OPGYRRGJRBEUFK-UHFFFAOYSA-L disodium;diacetate Chemical compound [Na+].[Na+].CC([O-])=O.CC([O-])=O OPGYRRGJRBEUFK-UHFFFAOYSA-L 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000012362 glacial acetic acid Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000003352 sequestering agent Substances 0.000 description 1
- CBXWGGFGZDVPNV-UHFFFAOYSA-N so4-so4 Chemical compound OS(O)(=O)=O.OS(O)(=O)=O CBXWGGFGZDVPNV-UHFFFAOYSA-N 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- 229960004249 sodium acetate Drugs 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 235000017454 sodium diacetate Nutrition 0.000 description 1
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 description 1
- 235000019982 sodium hexametaphosphate Nutrition 0.000 description 1
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- QYPNKSZPJQQLRK-UHFFFAOYSA-N tebufenozide Chemical compound C1=CC(CC)=CC=C1C(=O)NN(C(C)(C)C)C(=O)C1=CC(C)=CC(C)=C1 QYPNKSZPJQQLRK-UHFFFAOYSA-N 0.000 description 1
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 description 1
- 150000004992 toluidines Chemical class 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- RZLVQBNCHSJZPX-UHFFFAOYSA-L zinc sulfate heptahydrate Chemical compound O.O.O.O.O.O.O.[Zn+2].[O-]S([O-])(=O)=O RZLVQBNCHSJZPX-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
- 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
- G03C5/305—Additives other than developers
- G03C5/3053—Tensio-active agents or sequestering agents, e.g. water-softening or wetting agents
-
- 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
- G03C7/407—Development processes or agents therefor
- G03C7/413—Developers
Definitions
- Thisinvention relates to developers for colorphotography which have been stabilized by the addition of. 1,3-diamino-2-propanol tetracetic acid thereto.
- devolopin'g solutions are concerned primarily with the treatment of color materials having a coupling component present in the differentially sensitized layers for coupling with the oxidation products of the color developer.
- an object of my invention to provide photographic developing solutions for color photography which can be stored for extended periods of time without substantial loss of the eifective concentration of the active ingredients.
- Still another object is to provide a method for making such solutions.
- My invention provides a means of stabilizing photographic developing solutions of the type under consideration by the addition of 1,3-diamino-2-propanol tetracetic acid to the developing solutions. It has been shown in the art that this tetracetic acid derivative can be used in photographic developing solutions (U. S. Patent 2,656,- 273), although it was quite unexpected that this compound, which had been shown to be useful as a sequestering agent, could also be used to stabilize an otherwise unstable developing solution containing an alkali metal sullfite, an hydroxylamine salt and an ethylenediamine sa t.
- 1,3-diamino-2-propanol tetracetic acid I mean the compound represented by the following formula HOOC-CH: OH OHzCOOH NOH2&'HCH2N HOOC-CHz CHtCOOH
- HOOC-CH OH OHzCOOH NOH2&'HCH2N
- HOOC-CHz CHtCOOH
- the tetracetic acid derivative employed in my invention is employed in combination with a phenylenediamine color developer which upon oxidation couples with the conventional coupling components employed in incorporated coupler photography.
- Such phenylenediamine developing agents include the hydrochloride or sulfate of N,N-diethyl-pphenylenediamine, N methyl p-phenyl enediamine, N,N-dimethyl-pphenylenediamine, Z-amino- S-diethylaminotoluene, 4-amino-N-ethyl-NJfi-methanesulfonamidoethyH-ni-toluidine, etc.
- the amount of 1,3-diamino-2-propanol tetracetic acid added to the developing composition will vary somewhat, depending upon the particular developing agent employed and amounts of other ingredients present. In general, the concentration of the tetracetic acid can vary from about 0.2 g. to about 2.0 g. per liter.
- solution A An aqueous solution, designated solution A, was prepared having the following composition:
- solution B A second solution, designated solution B was prepared identical with solution A except that it contained 1.0 g. per liter of 1,3-diamino-2-propanol tetracetic acid. These two solutions were then stored for two weeks at 75 F., both in closed, tightly-stoppered bottles and in open con- Firm 24.11 959 tainers. By chemical analysis, the loss of concentration of sodium sulfite and hydroxylamine sulfatewas 'deter mined. r
- Patent 2,673,800 was exposed in the usual manner to an appropriate subject.
- the exposed color film was then developed in a black-and-white developer for six minutes, the developer having the following composition:
- the color material was then washed for eight minutes and subdued'room lights turned on after the washing had begun. seconds on each side at a distance of one foot from a No. 1 Photofiood.
- the re-exposed material was then color developed for four minutes in a developer of the type having the composition shown above and then treated in a second stop bath having the following composition:
- alkali metal carbonate such as sodium carbonate,- potassium carbonate, etc.
- alkali metal hydroxide such as sodium carbonate,- potassium carbonate, etc.
- a photographic developing composition comprising an alkaline solution of 1,3-diamino-2-propano1tetracetic acid, sodium sulfite, hydroxylamine sulfate, ethylenediamine sulfate, and 4-arnino-N-ethyl-N-[B-methanesulfonamidoethyl]-m-toluidine sesquisulfate monohydrate.
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 |
|---|---|---|---|
| BE562088D BE562088A (is") | 1956-11-05 | ||
| US620194A US2875049A (en) | 1956-11-05 | 1956-11-05 | Stabilized photographic developers for color photography |
| DEE14777A DE1056478B (de) | 1956-11-05 | 1957-10-11 | Verfahren zum Haltbarmachen farbphotographischer Farbentwickler-loesungen |
| GB34118/57A GB878675A (en) | 1956-11-05 | 1957-11-01 | Improvements in colour photographic developers |
| FR1185725D FR1185725A (fr) | 1956-11-05 | 1957-11-04 | Nouveau révélateur pour la photographie en couleurs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US620194A US2875049A (en) | 1956-11-05 | 1956-11-05 | Stabilized photographic developers for color photography |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2875049A true US2875049A (en) | 1959-02-24 |
Family
ID=24484969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US620194A Expired - Lifetime US2875049A (en) | 1956-11-05 | 1956-11-05 | Stabilized photographic developers for color photography |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2875049A (is") |
| BE (1) | BE562088A (is") |
| DE (1) | DE1056478B (is") |
| FR (1) | FR1185725A (is") |
| GB (1) | GB878675A (is") |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3141771A (en) * | 1961-02-01 | 1964-07-21 | Eastman Kodak Co | Aldehyde scavengers for photographic silver halide developers |
| US3201243A (en) * | 1962-10-18 | 1965-08-17 | Eastman Kodak Co | Method of inhibiting discoloration of color photographic layers containing dye images and resulting photographic products |
| US3335004A (en) * | 1963-12-09 | 1967-08-08 | Eastman Kodak Co | Method for stabilization processing of color emulsions |
| US3462269A (en) * | 1966-08-01 | 1969-08-19 | Minnesota Mining & Mfg | Stabilized color developing solution containing diethylenetriamine pentaacetic acid |
| US3647452A (en) * | 1970-07-06 | 1972-03-07 | Eastman Kodak Co | Direct reversal photographic element and process |
| US4083723A (en) * | 1976-02-24 | 1978-04-11 | Fuji Photo Film Co., Ltd. | Process for color photographic processing |
| USRE30064E (en) * | 1976-02-24 | 1979-08-07 | Fuji Photo Film Co., Ltd. | Process for color photographic processing |
| US4252892A (en) * | 1979-12-10 | 1981-02-24 | Eastman Kodak Company | Photographic color developer compositions |
| US4264716A (en) * | 1979-09-10 | 1981-04-28 | Eastman Kodak Company | Photographic color developer compositions |
| US4482626A (en) * | 1982-04-29 | 1984-11-13 | Eastman Kodak Company | Photographic color developer compositions |
| US4882264A (en) * | 1984-01-20 | 1989-11-21 | Olin Hunt Specialty Products Inc. | Color developer composition |
| US4892804A (en) * | 1986-01-24 | 1990-01-09 | Eastman Kodak Company | Photographic color developing compositions which are especially useful with high chloride photographic elements |
| US4897339A (en) * | 1986-08-08 | 1990-01-30 | Fuji Photo Film Co., Ltd. | Method for processing a silver halide color photographic material and a color developing composition comprising hydroxylamines and stabilizing agents |
| US4948713A (en) * | 1986-07-26 | 1990-08-14 | Konishiroku Photo Industry Co., Ltd. | Processing solution for a light-sensitive silver halide color photographic material |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4975357A (en) * | 1989-05-23 | 1990-12-04 | Eastman Kodak Company | Method of photographic color development using polyhydroxy compounds, metal ions and sequestering agents |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2555127A (en) * | 1950-01-10 | 1951-05-29 | Gen Aniline & Film Corp | Production of azine dyestuff images |
| US2656273A (en) * | 1952-02-12 | 1953-10-20 | Eastman Kodak Co | Photographic developers containing diamino-propanol tetracetic acid |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE436252A (is") * | 1938-09-02 | |||
| DE866605C (de) * | 1944-11-27 | 1953-02-12 | Bayer Ag | Verfahren zur Herstellung photographischer Abschwaecher- und Bleichfixierbaeder |
| BE507902A (is") * | 1950-12-22 |
-
0
- BE BE562088D patent/BE562088A/xx unknown
-
1956
- 1956-11-05 US US620194A patent/US2875049A/en not_active Expired - Lifetime
-
1957
- 1957-10-11 DE DEE14777A patent/DE1056478B/de active Pending
- 1957-11-01 GB GB34118/57A patent/GB878675A/en not_active Expired
- 1957-11-04 FR FR1185725D patent/FR1185725A/fr not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2555127A (en) * | 1950-01-10 | 1951-05-29 | Gen Aniline & Film Corp | Production of azine dyestuff images |
| US2656273A (en) * | 1952-02-12 | 1953-10-20 | Eastman Kodak Co | Photographic developers containing diamino-propanol tetracetic acid |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3141771A (en) * | 1961-02-01 | 1964-07-21 | Eastman Kodak Co | Aldehyde scavengers for photographic silver halide developers |
| US3201243A (en) * | 1962-10-18 | 1965-08-17 | Eastman Kodak Co | Method of inhibiting discoloration of color photographic layers containing dye images and resulting photographic products |
| US3201244A (en) * | 1962-10-18 | 1965-08-17 | Eastman Kodak Co | Method of inhibiting discoloration of color photographic layers containing dye images and resulting photographic products |
| US3335004A (en) * | 1963-12-09 | 1967-08-08 | Eastman Kodak Co | Method for stabilization processing of color emulsions |
| DE1300020B (de) * | 1963-12-09 | 1969-07-24 | Eastman Kodak Co | Verfahren zum Entwickeln und Fixieren von farbphotographischem Material |
| US3462269A (en) * | 1966-08-01 | 1969-08-19 | Minnesota Mining & Mfg | Stabilized color developing solution containing diethylenetriamine pentaacetic acid |
| US3647452A (en) * | 1970-07-06 | 1972-03-07 | Eastman Kodak Co | Direct reversal photographic element and process |
| USRE30064E (en) * | 1976-02-24 | 1979-08-07 | Fuji Photo Film Co., Ltd. | Process for color photographic processing |
| US4083723A (en) * | 1976-02-24 | 1978-04-11 | Fuji Photo Film Co., Ltd. | Process for color photographic processing |
| US4264716A (en) * | 1979-09-10 | 1981-04-28 | Eastman Kodak Company | Photographic color developer compositions |
| US4252892A (en) * | 1979-12-10 | 1981-02-24 | Eastman Kodak Company | Photographic color developer compositions |
| US4482626A (en) * | 1982-04-29 | 1984-11-13 | Eastman Kodak Company | Photographic color developer compositions |
| US4882264A (en) * | 1984-01-20 | 1989-11-21 | Olin Hunt Specialty Products Inc. | Color developer composition |
| US4892804A (en) * | 1986-01-24 | 1990-01-09 | Eastman Kodak Company | Photographic color developing compositions which are especially useful with high chloride photographic elements |
| US4948713A (en) * | 1986-07-26 | 1990-08-14 | Konishiroku Photo Industry Co., Ltd. | Processing solution for a light-sensitive silver halide color photographic material |
| US4897339A (en) * | 1986-08-08 | 1990-01-30 | Fuji Photo Film Co., Ltd. | Method for processing a silver halide color photographic material and a color developing composition comprising hydroxylamines and stabilizing agents |
Also Published As
| Publication number | Publication date |
|---|---|
| BE562088A (is") | |
| FR1185725A (fr) | 1959-08-04 |
| GB878675A (en) | 1961-10-04 |
| DE1056478B (de) | 1959-04-30 |
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