EP0324335B1 - Colour photographic development system without overflow - Google Patents
Colour photographic development system without overflow Download PDFInfo
- Publication number
- EP0324335B1 EP0324335B1 EP89100003A EP89100003A EP0324335B1 EP 0324335 B1 EP0324335 B1 EP 0324335B1 EP 89100003 A EP89100003 A EP 89100003A EP 89100003 A EP89100003 A EP 89100003A EP 0324335 B1 EP0324335 B1 EP 0324335B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- developer
- solution
- constituents
- overflow
- development
- 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 claims description 27
- 230000018109 developmental process Effects 0.000 claims description 16
- WVDDGKGOMKODPV-UHFFFAOYSA-N Benzyl alcohol Chemical compound OCC1=CC=CC=C1 WVDDGKGOMKODPV-UHFFFAOYSA-N 0.000 claims description 9
- 239000000126 substance Substances 0.000 claims description 9
- 239000000470 constituent Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 4
- 150000003839 salts Chemical class 0.000 claims description 4
- 239000003963 antioxidant agent Substances 0.000 claims description 3
- 239000007864 aqueous solution Substances 0.000 claims description 3
- 235000019445 benzyl alcohol Nutrition 0.000 claims description 3
- 230000008929 regeneration Effects 0.000 claims description 3
- 238000011069 regeneration method Methods 0.000 claims description 3
- 230000003078 antioxidant effect Effects 0.000 claims description 2
- 239000012458 free base Substances 0.000 claims description 2
- 150000002500 ions Chemical class 0.000 claims description 2
- -1 silver halide Chemical class 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 4
- 235000019252 potassium sulphite Nutrition 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- BHZRJJOHZFYXTO-UHFFFAOYSA-L potassium sulfite Chemical compound [K+].[K+].[O-]S([O-])=O BHZRJJOHZFYXTO-UHFFFAOYSA-L 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- 239000004094 surface-active agent Substances 0.000 description 3
- LWIHDJKSTIGBAC-UHFFFAOYSA-K tripotassium phosphate Chemical compound [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 description 3
- 229920001174 Diethylhydroxylamine Polymers 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- FVCOIAYSJZGECG-UHFFFAOYSA-N diethylhydroxylamine Chemical compound CCN(O)CC FVCOIAYSJZGECG-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910000027 potassium carbonate Inorganic materials 0.000 description 2
- 235000015320 potassium carbonate Nutrition 0.000 description 2
- 239000003381 stabilizer Substances 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 1
- AVXURJPOCDRRFD-UHFFFAOYSA-N Hydroxylamine Chemical compound ON AVXURJPOCDRRFD-UHFFFAOYSA-N 0.000 description 1
- 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 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 229910000378 hydroxylammonium sulfate Inorganic materials 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 229910000402 monopotassium phosphate Inorganic materials 0.000 description 1
- 235000019796 monopotassium phosphate Nutrition 0.000 description 1
- WVDDGKGOMKODPV-ZQBYOMGUSA-N phenyl(114C)methanol Chemical compound O[14CH2]C1=CC=CC=C1 WVDDGKGOMKODPV-ZQBYOMGUSA-N 0.000 description 1
- 229920001515 polyalkylene glycol Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- GNSKLFRGEWLPPA-UHFFFAOYSA-M potassium dihydrogen phosphate Chemical compound [K+].OP(O)([O-])=O GNSKLFRGEWLPPA-UHFFFAOYSA-M 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical class [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 229910000404 tripotassium phosphate Inorganic materials 0.000 description 1
- 235000019798 tripotassium phosphate Nutrition 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- G03C7/407—Development processes or agents therefor
- G03C7/413—Developers
Definitions
- the invention relates to an overflow-free color photographic development solution system comprising a refill solution and a ready-to-use ready-to-use color photographic developer solution.
- a disadvantage of the process according to EP-A-173 203 is that the photographic recording material to be developed must contain silver halide with at least 40 mol%, in particular at least 70 mol%, of chloride.
- Such high chloride Silver halides tend to be unstable.
- photographic recording materials for producing colored images have predominantly light-sensitive emulsion layers with silver halide grains, the chloride content of which is less than 40 mol%, in particular less than 30 mol%.
- the object of the invention was also to provide a development solution system for such color photographic negative papers in which there is no longer any overflow.
- This task is solved with a development solution system consisting of a refill solution and a ready-to-use developer solution supplemented with it, in which both solutions contain known development solution components in certain concentrations.
- the invention therefore relates to a development solution system for the development of color photographic negative papers with a chloride content of less than 30 mol%, consisting of a refill solution and a ready-to-use developer solution supplemented therewith, characterized in that the ready-to-use developer solution contains the following constituents in the amounts indicated per 1 aqueous solution and, if appropriate, other conventional constituents contains: 0 - 20 g benzyl alcohol, 3-15 g of the color developer compound of the formula or a corresponding amount of their salts, 0-2 g of the color developer compound of the formula or a corresponding amount of their salts, 8 - 35 g PO43 ions at least 0.2 g antioxidant and 2.1 - 4.2 g KBr and is adjusted to a pH of 10.5 to 12.5, that the regeneration rate is 50 to 120 ml / m2, preferably 60 to 100 ml / m2 developed material and the refill solution contains the individual components in a concentration that at the specified regeneration rate, the developer solution in use always
- Other constituents are other developer substances, optical brighteners, lubricants, for example polyalkylene glycols, surfactants, sodium and potassium sulfite, anti-limescale agents, stabilizers and and agents for adjusting the desired pH.
- lubricants for example polyalkylene glycols, surfactants, sodium and potassium sulfite, anti-limescale agents, stabilizers and and agents for adjusting the desired pH.
- Suitable antioxidants which are preferably used in an amount of 0.2 to 4 g, are e.g. Hydroxylamine, diethylhydroxylamine and sulfites.
- the developer substance or developer substances are preferably used in an amount (based on free base) such that the weight ratio of developer substance to KBr is ⁇ 4 and is in particular 1.5 to 3.5.
- CD 3 and optionally CD 4 are used as developer substances.
- a commercial color paper (Agfacolor type 8) was exposed imagewise, bleached, fixed, washed and dried. The processing was set to type with respect to minimum densities, ⁇ -1 values, ⁇ -2 values and maximum densities.
- the aqueous developer contained the following substances per liter: 15 ml Benzyl alcohol 8.5 ml Diethylene glycol 3.0 g Hydroxylamine sulfate 5.5 g CD-3 2.0 g K2SO3 34 g K2CO3 and 0.6 g KBr as well as surfactants, optical brighteners, stabilizers and anti-limescale in the usual amount and is adjusted to pH 10.2 with KOH.
- the developer was supplemented with 325 ml / m2 of developed paper from a refill solution, the composition of which was adjusted so that the aqueous developer always contained the specified substances in the stated amounts, resulting in an overflow of approx. 250 ml / m2 of developed paper.
- the development time was 210 seconds and the development temperature was 33 ° C.
- the comparative example was repeated, with K2CO3 replaced by the equimolar amount of tripotassium phosphate, the CD-3 amount doubled and the amount of KBr increased to 3.0 g.
- the pH was adjusted to 11.7.
- the developer was regenerated with 80 ml / m2 developed paper of a refill solution of the following composition, with no overflow.
- the development time was 210 seconds at 27 ° C developer temperature.
- Benzyl alcohol 320.0 ml Ethylene glycol 320.0 ml Polyethylene glycol, MW: 400 320.0 ml Diethylhydroxylamine 85 wt .-% aqueous solution 33.3 ml as well as surfactants and optical brighteners in the usual amount; pH 9.5
- Part B contained per liter:
- Part C contained per liter:
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Description
Die Erfindung betrifft ein überlauffreies farbfotografisches Entwicklungslösungssystem aus einer Nachfüllösung und einer damit ergänzten gebrauchsfertigen farbfotografischen Entwicklerlösung.The invention relates to an overflow-free color photographic development solution system comprising a refill solution and a ready-to-use ready-to-use color photographic developer solution.
Aus der EP-A-173203 ist ein Verfahren bekannt, bei dem die Entwicklung eines belichteten Silberhalogenidaufzeichnungsmaterials mit einer Farbstoffentwicklerlösung durchgeführt wird, der nur soviel Nachfüllösung zur Ergänzung der verbrauchten Chemikalien zugegeben wird, daß kein Überlauf entsteht. Dieses Verfahren hat gegenüber allen vorbekannten Verfahren mit Überlauf den Vorteil, daß keine Entsorgung des Überlaufs, der aus ökologischen Gründen nicht in das Abwasser eingeleitet werden kann, erforderlich wird.From EP-A-173203 a method is known in which the development of an exposed silver halide recording material is carried out with a dye developer solution to which only so much replenishment solution is added to supplement the used chemicals that no overflow occurs. This method has the advantage over all previously known methods with overflow that no disposal of the overflow, which cannot be discharged into the wastewater for ecological reasons, is necessary.
Nachteilig bei dem Verfahren nach EP-A-173 203 ist, daß das zu entwickelnde fotografische Aufzeichnungsmaterial Silberhalogenid mit wenigstens 40 Mol-%, insbesondere wenigstens 70 Mol-% Chlorid enthalten muß. Solche chloridreichen Silberhalogenide neigen aber zu Instabilitäten. Aus diesem Grund haben fotografische Aufzeichnungsmaterialien zur Herstellung farbiger Bilder überwiegend lichtempfindliche Emulsionsschichten mit Silberhalogenidkörnern, deren Chloridanteil kleiner 40 Mol-%, insbesondere kleiner 30 Mol-%, ist.A disadvantage of the process according to EP-A-173 203 is that the photographic recording material to be developed must contain silver halide with at least 40 mol%, in particular at least 70 mol%, of chloride. Such high chloride Silver halides tend to be unstable. For this reason, photographic recording materials for producing colored images have predominantly light-sensitive emulsion layers with silver halide grains, the chloride content of which is less than 40 mol%, in particular less than 30 mol%.
Aufgabe der Erfindung war es, auch für solche farbfotografischen Negativpapiere ein Entwicklungslösungssystem bereitzustellen, bei dem kein Überlauf mehr anfällt.The object of the invention was also to provide a development solution system for such color photographic negative papers in which there is no longer any overflow.
Diese Aufgabe wird mit einem Entwicklungslösungssystem aus einer Nachfüllösung und einer damit ergänzten gebrauchsfertigen Entwicklerlösung gelöst, bei dem beide Lösungen an sich bekannte Entwicklungslösungsbestandteile in bestimmten Konzentrationen enthalten.This task is solved with a development solution system consisting of a refill solution and a ready-to-use developer solution supplemented with it, in which both solutions contain known development solution components in certain concentrations.
Gegenstand der Erfindung ist daher ein Entwicklungslösungssystem für die Entwicklung von farbfotografischen Negativpapieren mit einem Chloridanteil kleiner als 30 Mol-%, bestehend aus einer Nachfüllösung und einer damit ergänzten gebrauchsfertigen Entwicklerlösung, dadurch gekennzeichnet, daß die gebrauchsfertige Entwicklerlösung die folgenden Bestandteile in den angegebenen Mengen pro 1 wäßriger Lösung sowie gegebenenfalls weitere übliche Bestandteile enthält:
0 - 20 g Benzylalkohol,
3 - 15 g der Farbentwicklerverbindung der Formel
oder einer entsprechenden Menge von deren Salzen,
0 - 2 g der Farbentwicklerverbindung der Formel
oder einer entsprechenden Menge von deren Salzen,
8 - 35 g PO₄³- Ionen
wenigstens 0,2 g Oxidationsschutzmittel und
2,1 - 4,2 g KBr
und auf einen pH-Wert von 10,5 bis 12,5 eingestellt ist, daß die Regenerierquote 50 bis 120 ml/m², vorzugsweise 60 bis 100 ml/m² entwickeltes Material beträgt und die Nachfüllösung die einzelnen Bestandteile in einer Konzentration enthält, daß bei der angegebenen Regenerierquote die Entwicklerlösung im Gebrauch die oben angegebenen Bestandteile stets in den angegebenen Mengen enthält.The invention therefore relates to a development solution system for the development of color photographic negative papers with a chloride content of less than 30 mol%, consisting of a refill solution and a ready-to-use developer solution supplemented therewith, characterized in that the ready-to-use developer solution contains the following constituents in the amounts indicated per 1 aqueous solution and, if appropriate, other conventional constituents contains:
0 - 20 g benzyl alcohol,
3-15 g of the color developer compound of the formula
or a corresponding amount of their salts,
0-2 g of the color developer compound of the formula
or a corresponding amount of their salts,
8 - 35 g PO₄³ ions
at least 0.2 g antioxidant and
2.1 - 4.2 g KBr
and is adjusted to a pH of 10.5 to 12.5, that the regeneration rate is 50 to 120 ml / m², preferably 60 to 100 ml / m² developed material and the refill solution contains the individual components in a concentration that at the specified regeneration rate, the developer solution in use always contains the above-mentioned constituents in the stated amounts.
Als weitere Bestandteile kommen andere Entwicklersubstanzen, optische Aufheller, Gleitmittel, z.B. Polyalkylenglykole, Tenside, Natrium-und Kaliumsulfit, Kalkschutzmittel, Stabilisatoren und und Mittel zur Einstellung des gewünschten pH-Wertes in Frage.Other constituents are other developer substances, optical brighteners, lubricants, for example polyalkylene glycols, surfactants, sodium and potassium sulfite, anti-limescale agents, stabilizers and and agents for adjusting the desired pH.
Geeignete Oxidationsschutzmittel, die vorzugsweise in einer Menge von 0,2 bis 4 g eingesetzt werden, sind z.B. Hydroxylamin, Diethylhydroxylamin und Sulfite.Suitable antioxidants, which are preferably used in an amount of 0.2 to 4 g, are e.g. Hydroxylamine, diethylhydroxylamine and sulfites.
Die Entwicklersubstanz oder Entwicklersubstanzen werden vorzugsweise in einer Menge eingesetzt (bezogen auf freie Base), daß das Gewichtsverhältnis Entwicklersubstanz zu KBr < 4 ist und insbesondere 1,5 bis 3,5 beträgt.The developer substance or developer substances are preferably used in an amount (based on free base) such that the weight ratio of developer substance to KBr is <4 and is in particular 1.5 to 3.5.
Als Entwicklersubstanzen werden insbesondere nur CD 3 und gegebenenfalls CD 4 eingesetzt.In particular, only CD 3 and optionally CD 4 are used as developer substances.
Der derzeit in großem Umfang weltweitbenutzte Entwicklungsprozeß EP 2 wird bei 33°C durchgeführt und benötigt 210 Sekunden. Es entsteht ein erheblicher Überlauf von ca. 250 ml/m² entwickeltem Papier.The development process EP 2, which is currently used extensively worldwide, is carried out at 33 ° C. and takes 210 seconds. There is a significant overflow of approximately 250 ml / m² of developed paper.
Mit dem erfindungsgemäßen Entwicklungssystem wird nicht nur der Überlauf vollständig vermieden, man kann wahlweise gegenüber EP 2 niedrigere Entwicklungstemperaturen oder kürzere Entwicklungszeiten einstellen.Not only is the overflow completely avoided with the development system according to the invention, but lower development temperatures or shorter development times can optionally be set compared to EP 2.
Ein handelsübliches Colorpapier (Agfacolor Typ 8) wurde bildmäßig belichtet, gebleicht, fixiert, gewaschen und getrocknet. Die Verarbeitung wurde bezüglich Minimaldichten, γ-1-Werten, γ-2-Werten und Maximaldichten jeweils auf Typ eingestellt.A commercial color paper (Agfacolor type 8) was exposed imagewise, bleached, fixed, washed and dried. The processing was set to type with respect to minimum densities, γ-1 values, γ-2 values and maximum densities.
Der wäßrige Entwickler enthielt pro Liter die folgenden Substanzen:
sowie Tenside, optische Aufheller, Stabilisatoren und Kalkschutzmittel in üblicher Menge und ist mit KOH auf pH 10,2 eingestellt.The aqueous developer contained the following substances per liter:
as well as surfactants, optical brighteners, stabilizers and anti-limescale in the usual amount and is adjusted to pH 10.2 with KOH.
Der Entwickler wurde mit 325 ml/m² entwickeltem Papier einer Nachfüllösung, deren Zusammensetzung so eingestellt war, daß der wäßrige Entwickler die angegebenen Substanzen stets in den angegebenen Mengen enthielt, ergänzt, wobei ein Überlauf von ca. 250 ml/m² entwickeltem Papier entstand.The developer was supplemented with 325 ml / m² of developed paper from a refill solution, the composition of which was adjusted so that the aqueous developer always contained the specified substances in the stated amounts, resulting in an overflow of approx. 250 ml / m² of developed paper.
Die Entwicklungszeit betrug 210 Sekunden, die Entwicklungstemperatur 33°C.The development time was 210 seconds and the development temperature was 33 ° C.
Das Vergleichsbeispiel wurde wiederholt, wobei K₂CO₃ durch die equimolare Menge Trikaliumphosphat ersetzt, die CD-3-Menge verdoppelt und die KBr-Menge auf 3,0 g erhöht wurden. Der pH-Wert auf 11,7 eingestellt.The comparative example was repeated, with K₂CO₃ replaced by the equimolar amount of tripotassium phosphate, the CD-3 amount doubled and the amount of KBr increased to 3.0 g. The pH was adjusted to 11.7.
Der Entwickler wurde mit 80 ml/m² entwickeltem Papier einer Nachfüllösung der nachfolgenden Zusammensetzung regeneriert, wobei kein Überlauf entstand.The developer was regenerated with 80 ml / m² developed paper of a refill solution of the following composition, with no overflow.
Die Entwicklungszeit betrug 210 Sekunden bei 27°C Entwicklertemperatur.The development time was 210 seconds at 27 ° C developer temperature.
Es wurden folgende Maximaldichten erzielt:
Bei Steigerung der Entwicklertemperatur wurden bei etwa gleichen Maximaldichten die folgenden Entwicklungszeiten erreicht:
33°C / 120 Sekunden
36°C / 80 Sekunden
41°C / 45 SekundenWhen the developer temperature was increased, the following development times were achieved at approximately the same maximum densities:
33 ° C / 120 seconds
36 ° C / 80 seconds
41 ° C / 45 seconds
sowie Tenside und optische Aufheller in üblicher Menge; pH Wert 9,5
as well as surfactants and optical brighteners in the usual amount; pH 9.5
sowie Kalkschutzmittel in üblicher Menge; pH-Wert 14
as well as limescale in the usual amount; pH 14
pH-Wert 2,0
pH 2.0
Claims (2)
- A developer solution system for the development of colour photographic negative papers containing less than 30 mol-% chloride, consisting of a refill solution and a developer solution replenished therewith, characterized in that the ready-to-use developer solution contains the following constituents in the quantities indicated per liter aqueous solution and, optionally, other typical constituents:
0 - 20 g benzyl alcohol
3 - 15 g of the following color developer compound
0 - 2 g of the following color developer compound
8 - 35 g PO₄³ ions,
at least 0.2 g antioxidant and
2.1 - 4.2 g KBr
and is adjusted to a pH value of from 10.5 to 12.5,
in that the refill solution contains the individual constituents in a such a concentration that, for a regeneration quota of 50 to 120 ml/m² developed material, the in-use developer solution always contains the above-mentioned constituents in the quantities indicated. - A developer solution system as claimed in claim 1, characterized in that the ratio by weight of developer substances (based on free base) to KBr is < 4.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3800385A DE3800385A1 (en) | 1988-01-09 | 1988-01-09 | OVERFLOW-FREE COLOR PHOTOGRAPHIC DEVELOPMENT SYSTEM |
| DE3800385 | 1988-01-09 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0324335A2 EP0324335A2 (en) | 1989-07-19 |
| EP0324335A3 EP0324335A3 (en) | 1990-06-13 |
| EP0324335B1 true EP0324335B1 (en) | 1993-03-03 |
Family
ID=6344974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP89100003A Expired - Lifetime EP0324335B1 (en) | 1988-01-09 | 1989-01-02 | Colour photographic development system without overflow |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US4997749A (en) |
| EP (1) | EP0324335B1 (en) |
| DE (2) | DE3800385A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4114481A1 (en) * | 1991-05-03 | 1992-11-05 | Agfa Gevaert Ag | ENVIRONMENTALLY IMPROVED DEVELOPMENT PROCESS FOR PHOTO MATERIALS AND SUITABLE DEVELOPER SOLUTION |
| US5344750A (en) * | 1992-05-12 | 1994-09-06 | Fuji Photo Film Co., Ltd. | Color development processing method of silver halide color photographic material using a color developer where the color developing agent concentration and processing temperature are a function of bromide ion concentration |
| US5556736A (en) * | 1993-11-11 | 1996-09-17 | Konica Corporation | Method for processing a silver halide color photographic light-sensitive material and producing a color image |
| US5436118A (en) * | 1994-03-31 | 1995-07-25 | Eastman Kodak Company | Method of processing silver halide photographic elements using a low volume thin tank processing system |
| GB2309092B (en) * | 1996-01-10 | 1999-11-10 | Kodak Ltd | Photographic dye image-forming process |
| US7172854B2 (en) * | 2003-11-10 | 2007-02-06 | Konica Minolta Photo Imaging, Inc. | Photographic color developer solution and processing method by use thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1478113A (en) * | 1973-09-25 | 1977-06-29 | Agfa Gevaert | Development promoting compounds for silver halide photography |
| US4161406A (en) * | 1977-12-07 | 1979-07-17 | Philip A. Hunt Chemical Corp. | Solution and method for processing high speed video news film |
| DE2916836A1 (en) * | 1979-04-26 | 1980-11-06 | Agfa Gevaert Ag | METHOD FOR PRODUCING PHOTOGRAPHIC IMAGES |
| FR2554935A1 (en) * | 1983-11-15 | 1985-05-17 | Kis France Sa | COMPOSITION TO REVEAL COLOR PHOTOGRAPHS |
| DE3431860A1 (en) * | 1984-08-30 | 1986-03-06 | Agfa-Gevaert Ag, 5090 Leverkusen | METHOD FOR PRODUCING COLOR PHOTOGRAPHIC IMAGES |
| IT1196972B (en) * | 1986-07-23 | 1988-11-25 | Minnesota Mining & Mfg | PHOTOGRAPHIC DEVELOPMENT COMPOSITIONS FOR SILVER HALIDES AND PROCEDURE FOR THE FORMATION OF SILVER PHOTOGRAPHIC IMAGES |
-
1988
- 1988-01-09 DE DE3800385A patent/DE3800385A1/en not_active Withdrawn
- 1988-12-27 US US07/290,351 patent/US4997749A/en not_active Expired - Fee Related
-
1989
- 1989-01-02 EP EP89100003A patent/EP0324335B1/en not_active Expired - Lifetime
- 1989-01-02 DE DE8989100003T patent/DE58903620D1/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| EP0324335A2 (en) | 1989-07-19 |
| DE3800385A1 (en) | 1989-07-20 |
| DE58903620D1 (en) | 1993-04-08 |
| US4997749A (en) | 1991-03-05 |
| EP0324335A3 (en) | 1990-06-13 |
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