US3578454A - Color photographic processing - Google Patents
Color photographic processing Download PDFInfo
- Publication number
- US3578454A US3578454A US690068A US3578454DA US3578454A US 3578454 A US3578454 A US 3578454A US 690068 A US690068 A US 690068A US 3578454D A US3578454D A US 3578454DA US 3578454 A US3578454 A US 3578454A
- Authority
- US
- United States
- Prior art keywords
- bath
- color
- fixing
- bleach
- compound
- 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
- 238000012545 processing Methods 0.000 title abstract description 26
- 150000001875 compounds Chemical class 0.000 abstract description 26
- -1 IRON COMPLEX SALT Chemical class 0.000 abstract description 25
- 238000000034 method Methods 0.000 abstract description 23
- 238000011161 development Methods 0.000 abstract description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- 238000004061 bleaching Methods 0.000 description 22
- 239000000243 solution Substances 0.000 description 9
- 229910052709 silver Inorganic materials 0.000 description 8
- 239000004332 silver Substances 0.000 description 8
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 7
- 239000007864 aqueous solution Substances 0.000 description 6
- 229960001484 edetic acid Drugs 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 239000000654 additive Substances 0.000 description 5
- 230000000996 additive effect Effects 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 5
- 125000002947 alkylene group Chemical group 0.000 description 4
- 125000004432 carbon atom Chemical group C* 0.000 description 4
- 150000002505 iron Chemical class 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 230000003405 preventing effect Effects 0.000 description 4
- DHCDFWKWKRSZHF-UHFFFAOYSA-N sulfurothioic S-acid Chemical compound OS(O)(=O)=S DHCDFWKWKRSZHF-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000000839 emulsion Substances 0.000 description 3
- 238000010348 incorporation Methods 0.000 description 3
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 2
- 241001466767 Galathea perone Species 0.000 description 2
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 2
- 239000004327 boric acid Substances 0.000 description 2
- 229940125782 compound 2 Drugs 0.000 description 2
- 229940126214 compound 3 Drugs 0.000 description 2
- 229940125898 compound 5 Drugs 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 description 2
- 235000019345 sodium thiosulphate Nutrition 0.000 description 2
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- MZSAMHOCTRNOIZ-UHFFFAOYSA-N 3-[4-(aminomethyl)-6-(trifluoromethyl)pyridin-2-yl]oxy-N-phenylaniline Chemical compound NCC1=CC(=NC(=C1)C(F)(F)F)OC=1C=C(NC2=CC=CC=C2)C=CC=1 MZSAMHOCTRNOIZ-UHFFFAOYSA-N 0.000 description 1
- 229920002873 Polyethylenimine Polymers 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- ZEEBGORNQSEQBE-UHFFFAOYSA-N [2-(3-phenylphenoxy)-6-(trifluoromethyl)pyridin-4-yl]methanamine Chemical compound C1(=CC(=CC=C1)OC1=NC(=CC(=C1)CN)C(F)(F)F)C1=CC=CC=C1 ZEEBGORNQSEQBE-UHFFFAOYSA-N 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- MQRJBSHKWOFOGF-UHFFFAOYSA-L disodium;carbonate;hydrate Chemical compound O.[Na+].[Na+].[O-]C([O-])=O MQRJBSHKWOFOGF-UHFFFAOYSA-L 0.000 description 1
- YAGKRVSRTSUGEY-UHFFFAOYSA-N ferricyanide Chemical compound [Fe+3].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-] YAGKRVSRTSUGEY-UHFFFAOYSA-N 0.000 description 1
- 150000002466 imines Chemical class 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000003585 thioureas Chemical class 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
- G03C7/30—Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials
- G03C7/42—Bleach-fixing or agents therefor ; Desilvering processes
- G03C7/421—Additives other than bleaching or fixing agents
Definitions
- A represents an alkylene group having from 2 to 4 carbon atoms and n is a positive integer, the bath being a bleach-fixing bath or a separate bath in which the element is processed, after color development, but no later than bleach-fixing.
- the present invention relates to color photographic processing and more particularly to a bleaching process for color development, and to such a process using a solution containing a specific compound.
- Typical bleaching solutions for color development processing contain potassium ferricyanide or a water-soluble iron complex salt, such as, Fe +-ethylenediaminetetraacetic acid complex.
- a bleaching accelerator As an example of a bleaching accelerator, it has been known to incorporate thiourea or thiourea derivatives in bleach-fixing baths but the incorporation in the bleachfixing bath is accompanied by faults, such as, the con- In the case of using potassium ferricyanide, the solution has enough ability to bleach developed silver, therefore the degradation in image quality caused by insufficient bleaching will not occur.
- potassium ferricyanide when potassium ferricyanide is present together with a thiosulfate which is used as a fixing agent, the thiosulfate will be decomposed by potassium ferricyanide because of its high oxidizing power; that is, the bleaching solution containing ferricyanide has the disadvantage that the bleaching bath must be separated from the fixing bath, which prolongs the process considerably.
- potassium ferricyanide is unstable in the solution and tends to be converted into potassium ferricyanide.
- an object of the present invention is to provide a color development process having a sufiicient bleaching power and providing no color fog.
- the inventors have studied ways to attain the aforesaid objects and as a result, it has been found that these objects are achieved by the incorporation in a bleach-fixing bath of the color photography compound represented by the general formula H N(ANH),,ANH 1 wherein A represents an alkylene group having 24 carbon atoms, and n is a positive integer.
- This additive markedly increases the bleaching power of the bath and also improves the color fog preventing effect.
- the aforesaid compound may be effectively added to the stop-bleaching bath or a bath between the stop-bleaching bath and the bleach-fixing bath.
- the aforesaid compound may very eifectively be added to a bath between the' color developer and the stop-fixing bath, to the stop-fixing bath, or to the bath between a stop-fixing bath and a bleachfixing bath.
- the amount of the aforesaid composition added to the processing solution is generally 0.3 g./liter to 50 g./liter preferably 2 g./liter to 10 g./liter. Since the compound of this invention is alkaline, the pH of the bleach-fixing bath must be adjusted to 6.4-7.1.
- the aforesaid compounds may be used alone or as a combination of two or more of them.
- Compound Stain 1 2 3 4 5 Control Yellow stain 0.10 0.10 0.10 0.10 0.25 Magentastain 0.10 0.10 0.10 0.18 Cyanstain 0.08 0.08 0.08 0.08 0.21
- Example 1 Into one liter of a bleach-fixing bath of the following composition was added 10 g. of each of aforesaid Compounds 15.
- control bleach-fixing 'bath had the following composition:
- Example 3 After exposure and color development, a color print paper was directly immersed in the bleachfixing bath prepared in Example 1 for 3 minutes without processing in a stopping bath or stop-fixing bath. As a control experiment, the same color print paper was immersed for 3 minutes in a bleach-fixing bath containing no compound of this invention under the same conditions. The formation of stains was compared in both cases, the results of which are shown in the following table, in which each stain was shown by three color densities.
- a method of color processing a photographic light-sensitive color element comprising image-wise exposing the element, developing the exposed element by a developer capable of forming a silver and a color image adn bleach-fixing the developed element to remove the silver image, the improvement which comprises processing the color element after development in a bleach-fixing bath containing a water-soluble iron complex salt and an amine compound represented by the general formula:
- A represents an alkylene group having from 2 to 4 carbon atoms and n is 0 or a positive integer, the amount of said amine compound being from about 0.3 g. to about 50 g. per one liter of the bleach-fixing bath.
- a method of color processing a photographic lightsensitive color element comprising image-wise exposing the element, developing the exposed element by a developer capable of forming a silver and a color image and bleach-fixing the developed element to remove the silver image, the improvement which comprises processing the color element after development but prior to bleach-fixing in a bath containing an amine compound represented by the general formula:
- processing of said color element after color development includes a stop-bleaching bath prior to processing in said bleach-fixing bath, and said amine compound is present in a bath between said stop-bleaching bath and said bleach-fixing bath.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8196766 | 1966-12-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3578454A true US3578454A (en) | 1971-05-11 |
Family
ID=13761253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US690068A Expired - Lifetime US3578454A (en) | 1966-12-14 | 1967-12-13 | Color photographic processing |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3578454A (cg-RX-API-DMAC7.html) |
| BE (1) | BE707861A (cg-RX-API-DMAC7.html) |
| DE (1) | DE1597592C3 (cg-RX-API-DMAC7.html) |
| GB (1) | GB1201571A (cg-RX-API-DMAC7.html) |
| NL (1) | NL6717016A (cg-RX-API-DMAC7.html) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0039752A1 (en) * | 1979-12-10 | 1981-11-18 | EASTMAN KODAK COMPANY (a New Jersey corporation) | Photographic color developer solutions |
-
1967
- 1967-12-12 BE BE707861D patent/BE707861A/xx unknown
- 1967-12-12 DE DE1597592A patent/DE1597592C3/de not_active Expired
- 1967-12-13 US US690068A patent/US3578454A/en not_active Expired - Lifetime
- 1967-12-14 GB GB56901/67A patent/GB1201571A/en not_active Expired
- 1967-12-14 NL NL6717016A patent/NL6717016A/xx unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0039752A1 (en) * | 1979-12-10 | 1981-11-18 | EASTMAN KODAK COMPANY (a New Jersey corporation) | Photographic color developer solutions |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1597592B2 (de) | 1973-03-22 |
| DE1597592C3 (de) | 1973-10-11 |
| GB1201571A (en) | 1970-08-12 |
| NL6717016A (cg-RX-API-DMAC7.html) | 1968-06-17 |
| BE707861A (cg-RX-API-DMAC7.html) | 1968-04-16 |
| DE1597592A1 (de) | 1970-07-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4277556A (en) | Process for treating light-sensitive silver halide color photographic materials | |
| US3770437A (en) | Photographic bleach compositions | |
| US3042520A (en) | Bleaching bath for processing color film | |
| US3907568A (en) | Process for regenerating blixing solution for color photographic processing | |
| US3168400A (en) | Rapid processing of photographic color materials | |
| US3617283A (en) | Simultaneous bleach-fixing method in color photography | |
| US3246987A (en) | Method for elimination of reversal reexposure in processing photographic elements | |
| JPS6119982B2 (cg-RX-API-DMAC7.html) | ||
| US3578454A (en) | Color photographic processing | |
| US4040837A (en) | Photographic bleach-fixer | |
| US4119462A (en) | Color photographic developer composition | |
| US3293036A (en) | Bleach-fix compositions and process for producing colored photographic images | |
| US2367548A (en) | Hardening and stain prevention process in color photography | |
| US3591380A (en) | Rapid stabilizing process for color photographic materials | |
| US3702247A (en) | Color photographic process using a bleach-fix solution containing a selenosulfate | |
| US3243295A (en) | Process for developing color film with sound record | |
| US3664838A (en) | Treatment of and developing composition for photographic light-sensitive materials | |
| US2706687A (en) | Preventing formation of prussian blue stain in color developed photographic prints | |
| US3843367A (en) | Photographic color developing process | |
| US3352676A (en) | Processing of color photographic materials | |
| US3578453A (en) | Color photographic processing with water soluble amines and salts thereof | |
| DE69901773T2 (de) | Eine von Lithium- und Magnesiumionen freie Farbentwicklerzusammensetzung und Methode zur photographischen Verarbeitung | |
| US3761262A (en) | Photographic color developing process | |
| US3833376A (en) | Color development process and compositions | |
| USRE22977E (en) | Bleaching bath and process for |