EP0133163B1 - Procédé pour traiter des matériaux photographiques pour blanchiment des couleurs à l'argent - Google Patents

Procédé pour traiter des matériaux photographiques pour blanchiment des couleurs à l'argent Download PDF

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EP0133163B1
EP0133163B1 EP84810351A EP84810351A EP0133163B1 EP 0133163 B1 EP0133163 B1 EP 0133163B1 EP 84810351 A EP84810351 A EP 84810351A EP 84810351 A EP84810351 A EP 84810351A EP 0133163 B1 EP0133163 B1 EP 0133163B1
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component
carbon atoms
alkyl
formula
hydrogen
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EP0133163A2 (fr
EP0133163A3 (en
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Arnost Dr. Libicky
Meinrad Schär
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Cessione ilford AG
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Ciba Geigy AG
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    • 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
    • G03C5/40—Chemically transforming developed images
    • G03C5/44—Bleaching; Bleach-fixing
    • 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
    • G03C7/28—Silver dye bleach processes; Materials therefor; Preparing or processing such materials

Definitions

  • the present invention relates to a method for processing photographic silver color bleaching materials.
  • DE-A-2530469 Processes for processing silver color bleaching materials with the process steps silver development, color and silver bleaching and fixation are known for example from DE-A-2530469.
  • DE-A-2716136 also describes a process according to which the duration of the color and silver bleaching can be shortened by adding quaternary ammonium salts to the bleaching bath.
  • the color and silver bleaching can also be shortened in the presence of water-soluble phosphines. This is known from DE-A-2651969.
  • An object of the invention is therefore a method for processing exposed silver color bleaching materials with the process measures silver development, color and silver bleaching and fixation, wherein for the combined color and silver bleaching a preparation is used which (a) a strong acid, (b) water-soluble iodide, (c) a water-soluble organic nitro compound, (d) an antioxidant and (e) a bleaching catalyst, characterized in that the preparation additionally (f) contains an organic developer and / or a benzotriazole derivative.
  • the preparations for carrying out the color and silver bleaching and the pack units of these preparations in the form of liquid, pasty or powdered concentrates are further objects of the present invention.
  • the strong acids (a) used in the preparation for color and silver bleaching according to the invention are intended to give the latter a pH of at most 2.
  • the water-soluble iodide (b) is preferably sodium or potassium iodide.
  • Suitable water-soluble organic nitro compounds (c) are e.g. aromatic nitro compounds, for example nitrobenzenesulfonic acids such as o- or m-nitrobenzenesulfonic acid, 2,4- or 3,5-dinitrobenzenesulfonic acid, 2-chloro-5-nitrobenzenesulfonic acid, 4-methyl-3,5-dinitrobenzenesulfonic acid, 3-chloro-2,5- dinitrobenzenesulfonic acid, 2-amino-4-nitrobenzenesulfonic acid and 2-amino-4-nitro-5-methoxybenzenesulfonic acid.
  • aromatic nitro compounds for example nitrobenzenesulfonic acids such as o- or m-nitrobenzenesulfonic acid, 2,4- or 3,5-dinitrobenzenesulfonic acid, 2-chloro-5-nitrobenzenesulfonic acid, 4-methyl-3,5-dinitrobenzenesulfonic acid, 3-chlor
  • Reductones or mercapto compounds are the main antioxidants (d).
  • Suitable reductones are in particular aci-reductones with a 3-carbonyl-endiol (1,2) grouping such as reductone, triose reductone or preferably ascorbic acid.
  • Preferred mercapto compounds are mercaptocarboxylic acids, in particular those of the formula HS- (CH 2 ) m -COOH, in which m is 3 or 4.
  • the mercapto compounds can also be added in the corresponding thioketo and / or thiolactone form.
  • Suitable bleaching catalysts are, in particular, those from the class of diazines.
  • pyrazines or, in particular, quinoxalines can be used.
  • Particularly suitable are those quinoxalines, e.g. are substituted by methyl, methoxy, (acylated) hydroxymethyl or (acylated) amino groups.
  • quinoxalines of the formula correspond in which R and R 2 independently of one another are hydrogen, alkyl having 1 to 5 carbon atoms, a radical of the formula -CH 2 -X, in which X is hydroxyl, halogen, acyloxy or alkoxy having 1 to 4 carbon atoms, or phenyl and R 3 and R 4 are independently hydrogen, alkyl having 1 to 5 carbon atoms, alkoxy having 1 to 4 carbon atoms, hydroxyl, halogen, amino, acylamino or a sulfonic acid group or together form a radical of the formula -0 (CH 2 ) p-0- where p is 1 or 2.
  • Quinoxalines of the formula (1) are particularly suitable, those of the formula or correspond in which R 5 and R 6 independently of one another are alkyl having 1 to 5 carbon atoms, -CH 2 OH, -CH 2 Cl or phenyl and R 7 and R 8 are independently hydrogen, alkyl with 1 to 5 Are carbon atoms, alkoxy having 1 to 4 carbon atoms, hydroxyl or amino and Rg and R 10 are alkyl having 1 to 5 carbon atoms and R 11 and R 12 are independently hydrogen, alkyl having 1 to 5 carbon atoms or hydroxyl.
  • Table 1 shows a number of particularly effective bleaching catalysts.
  • component (f) the use of which in bleaching baths is new and essential to the invention, organic developer substances customary in photography, such as, for. B. hydroquinone and pyrazolidinone derivatives.
  • the compounds of the formulas are particularly suitable wherein Q 1 and Q 2 independently of one another hydrogen, alkyl or alkoxy each having 1 to 4 carbon atoms, preferably methyl, methoxy, ethyl, ethoxy, propyl, butyl, butoxy or tert. Butyl, or halogen, preferably chlorine or bromine, Q 3 optionally with alkyl or alkoxy each having 1 to 4 carbon atoms, such as.
  • B is methyl, ethyl, propyl or butyl and methoxy or ethoxy substituted phenyl
  • Q 4 and Q 5 are independently hydrogen, alkyl or hydroxyalkyl each having 1 to 4 carbon atoms, such as. B. (hydroxy) methyl, (hydroxy) ethyl, (hydroxy) propyl or (hydroxy) butyl.
  • Q 3 is phenyl and Q 4 and Q 5 are independently hydrogen, methyl or hydroxymethyl.
  • Particularly suitable pyrazolidinone derivatives are 1-phenylpyrazolidinone, 1-phenyl-4-methyl-4'-hydroxymethylpyrazolidinone and 1-phenyl-4-methylpyrazolidinone.
  • hydroquinone particularly suitable developer substances of the hydroquinone type are 2-chlorohydroquinone, 2-methylhydroquinone, 2-bromohydroquinone, 2,3-dichlorohydroquinone, 2,3-dimethylhydroquinone, 2,5-dimethylhydroquinone, 2,5-diethylhydroquinone, 2,5-dimethoxyhydroquinone , 2,5-dibromohydroquinone, 2,6-dimethylhydroquinone, 2-methyl-5-tert-butylhydroquinone and 2-methyl-3-chlorohydroquinone.
  • Benztriazole derivatives of the formula can also be used as component (f) are used in which Q 6 is hydrogen or alkyl having 1 to 4 carbon atoms, 0 7 hydrogen, alkyl or alkoxy each having 1 to 4 carbon atoms, -S0 3 H or -SO 2 NH 2 and O ⁇ hydrogen, alkyl having 1 to 4 carbon atoms or Is halogen.
  • Q 6 is preferably hydrogen or methyl, 0 7 hydrogen, methyl, methoxy or amidosulfone and Q 8 is hydrogen, methyl or chlorine.
  • Benzotriazole itself is particularly well suited, e.g. 4-methyl- and 5-methylbenztriazole, 5,6-dimethylbenztriazole, 5-methyl-6-chlorobenzotriazole and 5-sulfobenztriazole.
  • the benzotriazole derivatives and the organic developer substances mentioned can also be used together as component (f).
  • the preparation for the combined color and silver bleaching may contain, in addition to the components (a) to (f) mentioned, a quaternary ammonium salt, component (g).
  • a quaternary ammonium salt component (g).
  • a "A 2 and A 3 are independently alkyl with 1 to 4 carbon atoms, for example methyl, ethyl, propyl or butyl, A 4 (hydroxy) methyl or (hydroxy) ethyl, X e is a halide, preferably Chloride or bromide, and r is 2 to 12.
  • the pyridinium compounds of the formula (8), in particular hydroxyethylpyridinium chloride, are particularly suitable.
  • the preparation according to the invention can contain a mixture of several bleaching catalysts (e), organic developer substances and / or benzotriazole derivatives (f) and optionally quaternary ammonium compounds (g).
  • e bleaching catalysts
  • organic developer substances organic developer substances and / or benzotriazole derivatives
  • f benzotriazole derivatives
  • g optionally quaternary ammonium compounds
  • Preparations containing 2,3-dimethyl-, 2,3,6-trimethyl- or 2,3,6-trimethyl-7-hydroxyquinoxaline as component (e), hydroquinone as component (f) and additionally as component are particularly suitable (g) Contain N-hydroxyethyl pyridinium chloride.
  • the organic developer substances can also, for. B. in the form of so-called precursor compounds such as acylated hydroquinones are added to the silver color bleaching bath.
  • precursor compounds such as acylated hydroquinones are added to the silver color bleaching bath.
  • precursor compounds are e.g. in EP-84290.
  • the proportions of components (a), (b), (c), (d), (e), (f) and optionally (g) present in the bleaching bath can vary within fairly wide limits. It is advantageous if the bleaching baths for carrying out the process according to the invention (a) sufficient acid to keep the pH of the preparation below 2, (b) 2 to 50 g / l of a water-soluble iodide, (c) optionally 1 to 30 g / l of a water-soluble organic nitro compound, (d) 0.5 to 10 g / l of an antioxidant, and (e) 0.2 to 5 g / l of a bleaching catalyst, (f) 0.1 to 10 g / l an organic developer and / or a benzotriazole derivative and optionally (g) 0.1 to 5 g / l of a quaternary ammonium salt.
  • the pH value of the color and silver bleach bath should be less than 2, which can easily be achieved with the strong acid (a) mentioned above.
  • the temperature of the bleach bath like the other treatment baths can also be between 20 and 90 ° C. In general, it is advantageous not to go higher than 60 ° C, and z. B. to work at 30 to 40 ° C. However, it is a further advantage of the process that it delivers good images with normal color balance at elevated temperatures, for example at 50 ° C. and above. Processing can be further shortened by increasing the temperature, although the baths remain stable long enough even under these conditions.
  • the preparations required for processing are used in the form of dilute aqueous solutions.
  • the preparations can also be produced in the form of a liquid, paste or powdered concentrate and, because of their good stability, can also be stored in this state for a long time.
  • an additional solvent such as ethyl or propyl alcohol, ethylene glycol monomethyl or ethyl ether can be added to improve the solubility, in particular component (d).
  • the diluted preparations suitable for processing are obtained by combining and diluting these liquid, paste-like or powdery concentrates, which are the packaging units of the preparations according to the invention, with water and, if appropriate, the organic solvents mentioned.
  • Baths of conventional composition can be used for silver development, e.g. those which contain hydroquinone as developer substance and, if appropriate, additionally 1-phenyl-3-pyrazolidone. If the silver development is carried out in the presence of compounds which are known as optical brighteners, an acceleration of the color and silver bleaching can also be achieved indirectly. Such connections are e.g. B.
  • heteroaromatics such as triazines or pyrazoles which are linked to aromatic systems, naphthalimides, diarylpyrazolines, derivatives of coumarin and carbostyril, stilbenes substituted by heterocycles or heteroaromatics and aromatic systems and in particular 4,4'-diaminostiiben-2,2 'substituted by cyanuric acid derivatives -disuifonic acids.
  • the fixing bath can be composed in a known and customary manner.
  • a fixative e.g. Sodium thiosulfate or preferably ammonium thiosulfate, optionally with additions of sodium bisulfite and / or sodium metabisulfite.
  • All baths can also contain additives such as hardening agents, wetting agents, optical brighteners and UV protection agents. Washings are preferably carried out between the processing steps.
  • the inventive method can, for. B. in the production of positive color images in copying or recording machines or in the rapid processing of other silver color bleaching materials, such as. B. for scientific records, e.g. B. colored screen photography, and industrial purposes.
  • the residence time of the silver color bleaching material in the developer, bleaching and fixing bath is usually the same, the times for the development and fixing step having to be based on the time for the bleaching step (as the longest process).
  • the time required for development and fixation can be reduced relatively easily.
  • the total processing time from development to fixation can be significantly reduced. Due to the technically prescribed identical treatment times in the individual treatment stages, the time saved for the overall process can be viewed as three times the value of the reduction achieved in the bleaching time. This is essential for machine processing.
  • Transparent, metallic-reflective, or preferably white-opaque material can be used as the silver color bleaching material.
  • the carrier can consist, for example, of pigmented cellulose triacetate or polyester. If it is made of paper felt, it must be coated on both sides or coated with polyethylene.
  • the photosensitive layers are located on at least one side of this support, preferably in the known arrangement, i.e. a red-sensitized silver halide emulsion layer containing a blue-green azo dye, a green-sensitized silver halide emulsion layer containing a purple azo dye and a blue-sensitive silver halide emulsion layer containing a yellow azo dye.
  • the material can also contain sub-layers, intermediate layers, filter layers and protective layers.
  • the silver color bleaching materials to be processed according to the invention can also have partially spatially separated arrangements of silver halide and dye, as is the case, for. B. is described in EP-A-39313.
  • a silver color bleaching material which has a layer of a red-sensitive silver bromide gelatin emulsion with a cyan dye of the formula on a pigmented cellulose triacetate support an intermediate gelatin layer, a layer of a green-sensitive silver bromide gelatin emulsion with a magenta dye of the formula an intermediate gelatin layer and a layer of a blue-sensitive silver bromide gelatin emulsion with a yellow dye of the formula contains.
  • the reflectance density of the incorporated image dyes is 2.0, the image dye layers contain 0.8 g / m 2 of silver, and the total thickness of the photographic material produced is 15 ! T m.
  • This material is exposed and processed in the immersion process. It goes through the processing stages of development (30 seconds), washing (10 seconds), bleaching (see Table 2 below), washing (10 seconds), fixing (30 seconds) and final washing (60 seconds), with the temperature of the corresponding processing baths Is 35 ° C.
  • the bleaching times listed in Table 2 below are those times which are necessary in order to be exposed, i.e. white areas of the image to bleach the material to a reflectance density of at most 0.03 (via veil).
  • the aqueous developer bath contains 10 g of hydroquinone, 2 g of 1-phenylpyrazolidinone, 40 g of sodium sulfite (anhydrous), 25 g of potassium carbonate, 10 g of potassium hydrogen carbonate, 2.5 g of potassium bromide and 0.6 g of benzotriazole per liter.
  • the fixing bath contains per liter of aqueous solution: 220 g ammonium thiosulfate, 10 g sodium metabisulfite and 40 g sodium sulfite.
  • the bleaching baths No. 3 to 8 according to the invention in Table 2 and the comparative bleaching baths No. 1 and 2 contain 50 g of conc. Per liter of aqueous solution. Sulfuric acid, 2 g of 4-mercaptobutyric acid, 10 g of potassium iodide, 7 g of m-nitrobenzenesulfonic acid (sodium salt), 2 g of bleaching catalyst and the additives listed in the table.
  • a silver color bleaching material is produced which, on a white opaque cellulose triacetate support, contains a red-sensitive silver bromoiodide emulsion layer, a red-sensitive silver bromide iodide emulsion layer which contains a cyan dye of the formula (100), an intermediate gelatin layer, a green-sensitive silver bromide iodide emulsion layer which contains a magenta ionic dye layer which contains a magenta ionic dye, a magenta colorant emulsion a yellow filter layer (40 mg / m 2 of yellow silver hydrosol), a blue-sensitive iodide-free silver bromide emulsion layer containing a yellow dye of the formula (102), a blue-sensitive iodide-free silver bromide emulsion layer, and a gelatin protective layer.
  • a gelatin layer is cast on the back of the carrier.
  • the iodide-containing emulsion layers contain silver halide crystals with 2.6 mol% silver iodide and 97.4 mol% silver bromide.
  • the image dyes are used in such a concentration that their reflectance density is 2.0; the total silver content of the 22 Itm thick layers is 2.0 g / m 2 .
  • This material is exposed and processed in the immersion process. It goes through the processing stages of development (2 min), washing (2 min), bleaching (see table 3 below), washing (2 min), fixation (5 min) and final washing (5 min), with the temperature of the corresponding processing baths Is 24 ° C.
  • the bleaching times listed in Table 3 below are those times which are necessary in order to be exposed, i. H. white areas of the image to bleach the material to a reflectance density of at most 0.03 (via veil).
  • the aqueous developer bath contains per liter:
  • aqueous bleaching baths 1 to 5 in Table 3 contain per liter: and the additives listed in Table 3.
  • This example shows the shortening of the total processing time of exposed silver color bleaching materials, which is composed of the time saving achieved according to the invention in the combined color and silver bleaching as well as the time saving in development and fixation which can be achieved by known measures.
  • Exposed silver color bleaching materials are usually processed e.g. B. in a developer bath according to Example 1, a bleaching bath according to Table 2, No. 1, and a fixing bath according to Example 1 at a processing temperature of 35 ° C.
  • the total processing time for this process is 4 min 20 sec (1 min each in developer, bleaching and fixing bath, 1 min for final rinsing and 20 sec for intermediate rinsing).
  • a developer which contains 15 g of hydroquinone, 2 g of 1-phenylpyrazolidone, 40 g of sodium sulfite (anhydrous), 25 g of potassium carbonate, 10 g of potassium hydrogen carbonate, 2 g of potassium bromide, 0.1 g of benzotriazole and 3 g of sodium ethylenediaminetetraacetate per liter of aqueous solution contains, a bleaching bath according to Table 2, No.
  • a fixing bath containing 250 g ammonium thiosulfate Contains 50g of potassium metabisulfite and 19 g of potassium hydroxide per liter of aqueous solution, and carries out an intermediate rinse of 10 seconds after the bleaching process and a final rinse of 1 minute, so that at a bath temperature of 35 ° C, the total processing time is only 2 minutes 40 seconds because development, bleaching and fixation only take 30 seconds each. This means a time saving of 1 min 40 sec compared to conventional processing.
  • Such processing is particularly important for the production of photographic images in photo booths.

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Claims (22)

1. Procédé pour le traitement de matériaux à blanchiment couleurs argent, comprenant les étapes développement de l'argent, blanchiment des couleurs et de l'argent, et fixage, dans lequel on utilise pour le blanchiment combiné des couleurs et de l'argent une préparation qui contient (a) un acide fort, (b) un iodure soluble dans l'eau, (c) un composé nitré organique soluble dans l'eau, (d) un antioxydant et (e) un catalyseur de blanchiment, caractérisé en ce que la préparation contient en outre (f) une substance révélatrice organique et/ou un dérivé du benzotriazole.
2. Procédé selon la revendication 1, caractérisé en ce que la préparation contient en outre (g) un sel d'ammonium quaternaire.
3. Procédé selon la revendication 1, caractérisé en ce que le composant (a) est l'acide sulfurique ou l'acide sulfamique.
4. Procédé selon la revendication 1, caractérisé en ce que le composant (b) est l'iodure de sodium ou de potassium.
5. Procédé selon la revendication 1, caractérisé en ce que le composé (c) est un composé nitré aromatique soluble dans l'eau.
6. Procédé selon la revendication 5, caractérisé en ce que le composant (c) est un acide nitroben- zènesulfonique.
7. Procédé selon la revendication 1, caractérisé en ce que le composant (d) est une réduction ou un composé portant un groupe mercapto.
8. Procédé selon la revendication 7, caractérisé en ce que le composant (d) est l'acide ascorbique ou un acide mercaptocarboxylique.
9. Procédé selon la revendication 8, caractérisé en ce que le composant (d) a la formule HS-(CH2)m-COOH, dans laquelle m vaut 3 ou 4.
10. Procédé selon la revendication 1, caractérisé en ce que le composant (e) est une quinoxaline de formule
Figure imgb0037
dans laquelle R, et R2, indépendamment l'un de l'autre, sont'chacun un hydrogène, un radical alkyle ayant de 1 à 5 atomes de carbone, un radical de formule -CH2-X dans laquelle X est un radical hydroxyle, halogéno, acyloxy ou alcoxy ayant de 1 à 4 atomes de carbone, ou bien phényle, et R3 et R4, indépendamment l'un de l'autre, , sont chacun un hydrogène, un radical alkyle ayant de 1 à 5 atomes de carbone, alcoxy ayant de 1 à 4 atomes de carbone, hydroxyle, halogéno, amino ou acylamino ou un groupe acide sulfonique, ou forment ensemble un radical de formule -O(CH2)p-O- dans laquelle p vaut 1 ou 2.
11. Procédé selon la revendication 10, caractérisé en ce que le composant (e) est une quinoxaline de formule
Figure imgb0038
dans laquelle R5 et R6, indépendamment l'un de l'autre, sont chacun un radical alkyle ayant de 1 à 5 atomes de carbone, -CH20H, -CH2CI ou phényle, et R7 et Rε, indépendamment l'un de l'autre, sont chacun un hydrogène ou un radical alkyle ayant de 1 à 5 atomes de carbone, alcoxy ayant de 1 à 4 atomes de carbone, hydroxyle ou amino.
12. Procédé selon la revendication 11, caractérisé en ce que le composant (e) est une quinoxaline de formule
Figure imgb0039
dans laquelle R9 et R10 sont chacun un radical alkyle ayant de 1 à 5 atomes de carbone, et R11 et R12, indépendamment l'un de l'autre, sont chacun un hydrogène ou un radical alkyle ayant de 1 à 5 atomes de carbone ou hydroxyle.
13. Procédé selon la revendication 1, caractérisé en ce que le composant (f) est un dérivé de l'hydroquinone ou de la pyrazolidinone.
14. Procédé selon la revendication 13, caractérisé en ce que le composant (f) a la formule
Figure imgb0040
où Q1 et Q2, indépendamment l'un de l'autre, sont chacun un hydrogène ou un radical alkyle ou alcoxy ayant chacun de 1 à 4 atomes de carbone, ou halogéno, Q3 est un radical phényle éventuellement substitué par un radical alkyle ou alcoxy ayant chacun de 1 à 4 atoms de carbone, et Q4 et Q5, indépendamment l'un de l'autre, sont chacun un hydrogène ou un radical alkyle ou hydroxyal- kyle ayant chacun de 1 à 4 atomes de carbone.
15. Procédé selon la revendication 14, caractérisé en ce que le composant (f) est l'hydroquinone ou un composé de formule
Figure imgb0041
dans laquelle Q4 et Q5, indépendamment l'un de l'autre, sont chacun un hydrogène ou le radical méthyle ou hydroxyméthyle.
16. Procédé selon la revendication 1, caractérisé en ce que le composant (f) est le benzotriazole ou un dérivé du benzotriazole de formule
Figure imgb0042
dans laquelle Q6 est un hydrogène ou un radical alkyle ayant de 1 à 4 atomes de carbone, 07 est un hydrogène ou un radical alkyle ou alcoxy ayant chacun de 1 à 4 atomes de carbone, -SO3H ou -S02NH2, et Q8 est un hydrogène ou un radical alkyle ayant de 1 à 4 atomes de carbone ou halogéno.
17. Procédé selon la revendication 2, caractérisé en ce que le composant (g) correspond aux formules
Figure imgb0043
Figure imgb0044
ou
Figure imgb0045
dans lesquelles A1, A2 et A3, indépendamment les uns des autres, sont chacun un radical alkyle ayant de 1 à 4 atomes de carbone, A4 est le radical méthyle, éthyle, hydroxyméthyle ou hydroxy- éthyle, Xe est un halogénure et r vaut de 2 à 12.
18. Procédé selon la revendication 17, caractérisé en ce que le composant (g) a la formule
Figure imgb0046
dans laquelle A4 et Xe ont les significations données dans la revendication 17.
19. Procédé selon les revendications 12, 15 et 18, caractérisé en ce que la préparation contient, en tant que composant (e) la 2,3-diméthyl-, 2,3,6-triméthyl- ou 2,3,6-triméthyl-7-hydroxy-quinoxaline, en tant que composant (f), l'hydroquinone, et de plus, en tant que composant (g), le chlorure de N-hydroxyéthyl-pyridinium.
20. Préparation pour la mise en œuvre du blanchiment des couleurs et de l'argent selon le procédé de la revendication 1, contenant (a) suffisamment d'un acide fort pour maintenir le pH de la préparation au-dessous de 2, (b) de 2 à 50 g/I d'un iodure soluble dans l'eau, (c) de 1 à 30 g/I d'un composé nitré organique soluble dans l'eau, (d) de 0,5 à 10 g/I d'un antioxydant, (e) de 0,2 à 5 g/I d'un catalyseur de blanchiment, et éventuellement (g) de 0,5 à 5 g/I d'un sel d'ammonium quaternaire, caractérisé en ce que la préparation contient en outre (f) de 0,1 à 10 g/I d'une substance révélatrice organique et/ou d'un dérivé du benzotriazole.
21. Préparation selon la revendication 20, caractérisée en ce qu'on l'obtient à partir d'un concentré contenant les composants (a) et (c), et à partir d'un concentré contenant les composants (b), (d), (e) et (f) et éventuellement (g), par dilution avec de l'eau, éventuellement mélangée avec un solvant organique.
22. Unité de conditionnement pour la préparation selon la revendication 21, caractérisée en ce qu'elle se présente sous forme de deux concentrés liquides, pâteux ou pulvérulents distincts, l'un d'eux contenant les composants (a) et (c) et l'autre les composants (b), (d), (e), (f) et éventuellement (g).
EP84810351A 1983-07-20 1984-07-16 Procédé pour traiter des matériaux photographiques pour blanchiment des couleurs à l'argent Expired EP0133163B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3990/83 1983-07-20
CH3990/83A CH657710A5 (de) 1983-07-20 1983-07-20 Verfahren zur verarbeitung photographischer silberfarbbleichmaterialien.

Publications (3)

Publication Number Publication Date
EP0133163A2 EP0133163A2 (fr) 1985-02-13
EP0133163A3 EP0133163A3 (en) 1985-08-14
EP0133163B1 true EP0133163B1 (fr) 1987-08-26

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ID=4267742

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84810351A Expired EP0133163B1 (fr) 1983-07-20 1984-07-16 Procédé pour traiter des matériaux photographiques pour blanchiment des couleurs à l'argent

Country Status (5)

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US (1) US4546069A (fr)
EP (1) EP0133163B1 (fr)
JP (1) JPS6042757A (fr)
CH (1) CH657710A5 (fr)
DE (1) DE3465638D1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN87105999A (zh) * 1987-01-06 1988-07-20 希巴-盖吉股份公司 曝光的银染料漂白照相材料的冲洗方法
US5262285A (en) * 1992-05-04 1993-11-16 Eastman Kodak Company Methods and compositions for retouching film images
US5552264A (en) * 1995-04-05 1996-09-03 Eastman Kodak Company Photographic conditioning solution concentrate containing bleach accelerator and formaldehyde precursor and method of use
US5922521A (en) * 1998-03-26 1999-07-13 Eastman Kodak Company Uniformly mixed dry photographic processing composition and method of preparation
US5900355A (en) * 1998-03-26 1999-05-04 Eastman Kodak Company Method of making uniformly mixed dry photographic processing composition using hot melt binder
US5945265A (en) * 1998-03-26 1999-08-31 Eastman Kodak Company Uniformly mixed dry photographic developing composition containing antioxidant and method of preparation
JP3871060B2 (ja) * 2003-03-25 2007-01-24 株式会社リコー 光記録媒体及び情報記録方法

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Publication number Priority date Publication date Assignee Title
US2507183A (en) * 1945-03-23 1950-05-09 Eastman Kodak Co Silver bleach for color materials
BE475914A (fr) * 1946-12-14
BE622121A (fr) * 1961-09-06
US3414411A (en) * 1965-12-10 1968-12-03 Eastman Kodak Co Dye bleach process
FR1541483A (fr) * 1966-10-20 1968-10-04 Fuji Photo Film Co Ltd Procédé photographique de blanchiment par colorant argentique
BE791978A (fr) * 1971-11-29 1973-05-28 Ciba Geigy Preparation decolorante pour le procede photographique de decoloration a l'argent
CH584914A5 (fr) * 1973-10-12 1977-02-15 Ciba Geigy Ag
CH594912A5 (fr) * 1974-07-10 1978-01-31 Ciba Geigy Ag
JPS51121331A (en) * 1975-04-16 1976-10-23 Fuji Photo Film Co Ltd Silver dye bleaching process
CH597627A5 (fr) * 1975-11-17 1978-04-14 Ciba Geigy Ag
US4125402A (en) * 1976-08-19 1978-11-14 Ciba-Geigy Ag Method of processing silver dye bleaching materials and preparations suitable for the dye and silver bleaching
CH627006A5 (fr) * 1977-03-23 1981-12-15 Ciba Geigy Ag
DE2938803A1 (de) * 1978-09-26 1980-04-03 Fuji Photo Film Co Ltd Umkehrentwicklungsverfahren fuer schwarzweissfotografische lichtempfindliche materialien
US4304846A (en) * 1979-02-09 1981-12-08 Ciba-Geigy Ag Method for processing silver dye-bleach materials
DD222758A3 (de) * 1981-10-29 1985-05-22 Defa Zentralstelle Fuer Filmte Chinonhaltige loesung, insbesondere fotografisches bleichband
JPS5943739B2 (ja) * 1981-10-30 1984-10-24 富士写真フイルム株式会社 ハロゲン化銀カラ−感光材料の処理方法

Also Published As

Publication number Publication date
EP0133163A2 (fr) 1985-02-13
CH657710A5 (de) 1986-09-15
JPS6042757A (ja) 1985-03-07
DE3465638D1 (en) 1987-10-01
US4546069A (en) 1985-10-08
EP0133163A3 (en) 1985-08-14

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