EP0851286A1 - Procédé de traitement de materiaux photographiques à l'halogénure d'argent, sensible à la lumière - Google Patents

Procédé de traitement de materiaux photographiques à l'halogénure d'argent, sensible à la lumière Download PDF

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Publication number
EP0851286A1
EP0851286A1 EP97203818A EP97203818A EP0851286A1 EP 0851286 A1 EP0851286 A1 EP 0851286A1 EP 97203818 A EP97203818 A EP 97203818A EP 97203818 A EP97203818 A EP 97203818A EP 0851286 A1 EP0851286 A1 EP 0851286A1
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EP
European Patent Office
Prior art keywords
fixer
solution
processing
developing
starter
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.)
Granted
Application number
EP97203818A
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German (de)
English (en)
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EP0851286B1 (fr
Inventor
André Roefs
Benedictus Jansen
Frank Michiels
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Agfa Gevaert NV
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Agfa Gevaert NV
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Priority to EP97203818A priority Critical patent/EP0851286B1/fr
Publication of EP0851286A1 publication Critical patent/EP0851286A1/fr
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Publication of EP0851286B1 publication Critical patent/EP0851286B1/fr
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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
    • G03C5/395—Regeneration of photographic processing agents other than developers; Replenishers therefor
    • G03C5/3958—Replenishment processes or compositions, i.e. addition of useful photographic processing 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
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
    • G03C5/264—Supplying of photographic processing chemicals; Preparation or packaging thereof
    • G03C5/266—Supplying of photographic processing chemicals; Preparation or packaging thereof of solutions or concentrates
    • 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
    • G03C5/38—Fixing; Developing-fixing; Hardening-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
    • G03C2200/00—Details
    • G03C2200/43—Process
    • 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
    • G03C2200/00—Details
    • G03C2200/44—Details pH value
    • 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
    • G03C2200/00—Details
    • G03C2200/52—Rapid processing
    • 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
    • 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
    • G03C5/395—Regeneration of photographic processing agents other than developers; Replenishers therefor

Definitions

  • This invention is related with a black-and-white processing method in a processor of a black-and-white silver halide photographic material.
  • it is related with fixing solutions used as fixer starter solutions.
  • a developer replenisher having a higher pH value (in an amount of at least 0.5) than its development starting solution has been described in US-A 5,503,965.
  • Addition of starter, including at least one alkali agent, to the fixer in order to have a difference of pH between new liquid and running liquid within 0.2 has been described for a fixer having a pH after adding starter from 4.0 to 5.0 as in JP-A 03-68937, whereas a pH from 4.3 to 5.3 is controlled in JP-A 06-250350.
  • Replenishing fixer solutions having a higher thiosulphate concentration than in the fixer at the start of processing, wherein pH of the fixer is more than 3.8 and preferably from 4.2-5.5 has been described in JP-A 06-230527, for rapid processing applications. Starter tablets have further been described in JP-A 04-032839.
  • Electrolysis can proceed for example by passing the fixer around a circulation loop which includes an electrolytic cell. Electrolytic removal of silver also has the benefit of enabling a lower regeneration rate of fixer to be used. This is fully consistent with recent trends to reduce the volume of treatment liquids used in photographic processing. Electrolysis of the fixer solution, known as most efficient method of chemical recovery of the said fixer solution in order to reduce the slow down effect on fixation rate of increasing amounts of silver ions present in the fixer, however makes pH and sulfite ion concentration decrease.
  • the objects of the present invention have been attained by providing a method of processing in a processor an image-wise exposed black-and-white light-sensitive silver halide photographic material comprising the steps of developing in a developing solution and fixing in a fixer solution, characterized in that upon starting of the processing the said fixer solution comprises a mixture of a fixer starter solution and a fixer replenisher solution and in that said fixer solution is replenished with the said fixer replenishing solution.
  • said method comprises the step of mixing a fixer starter solution and a fixer replenisher solution in a fixer unit or tank of the said processor.
  • fixer solution used in the method of the present invention has an important influence on the sensitometric results.
  • the fixer solution chemistry in the processor is the replenishment fixer solution chemistry with a supplementary additive mixed therewith, said supplementary additive being the fixer starter solution.
  • said supplementary additive is the (fresh or used) developing solution which acts as fixer starter solution.
  • the fixer starter solution comprises developing agent(s) in a molar amount versus thiosulphate ions in the fixer replenisher solution of from 0.015 up to 0.080.
  • Said "fresh fixer” is defined as the fixer present in the fixer unit of the processor before any film has passed, or in the alternative, the fixer in which a very little amount of film was run, well before a steady state or equilibrium situation is reached (e.g. resulting in a "half-seasoned” fixer).
  • fixer replenisher solution is defined as the unused fixer present in the fixer container which is, in the method of the present invention, mixed in the fixer unit with fixer starter solution in order to prepare the "fresh fixer” solution defined hereinbefore. It is clear that said “fixer replenishing solution” is added further to the fixer unit as the film is being processed, acting as a commonly used “replenisher” too.
  • the "seasoned fixer” is defined as the fixer present in the fixer unit of the processor after processing enough film in order to reach a steady-state or an equilibrium situation, depending on the amounts of replenisher used. In order to reach said steady-state, the said fixer is topped up with the "fixer replenisher solution” defined hereinbefore.
  • the said fixer solution comprises a mixture of a fixer starter solution and fixer replenisher solution, wherein it is understood that both solutions have been mixed before addition to the fixer unit or tank of the automatic processor.
  • an additional step is the step of adding of a fixer starter solution to the fixer replenisher solution which is present in the said fixer unit or tank.
  • said fixer starter solution is preferably added before starting processing, although it is not excluded to add the said fixer starter solution during processing, i.e. after the processing has been started, before an equilibrium or seasoned state has been reached.
  • fixer starter solution when adding fixer starter solution to fixer replenisher solution the latter being present in a fixer unit or tank of the processor.
  • fixer starter solution is present in the fixer tank before fixer replenishing solution is added thereto and mixed therewith is however not excluded, so that more generally the method of the present invention comprises the step of mixing of fixer starter solution and fixer replenishing solution in a fixer unit or tank of the said processor.
  • said fixer starter solution is mixed with the fixer replenishing solution in the processor before starting processing.
  • said fixer starter solution is thus a developing solution.
  • the fixer starter solution comprises developing agent(s) in a molar amount versus thiosulphate ions in the fixer replenisher solution of from 0.015 up to 0.080.
  • the fixer starter solution is a buffering solution.
  • Said buffering solution alters pH of the fixer to the required value: so in a preferred embodiment said fixer starter solution alters pH to a value in the range from - 0.3 up to + 0.3 units of the pH of the fixer solution after seasoning.
  • Lowering pH by addition of fixer starter solution (to a pH value of e.g. 4.5) by mixing with fixer replenisher solution is especially useful in combination with fixer electrolysis.
  • said fixer starter solution is water or an alkaline solution.
  • an amount of fixer starter solution is proportional to tank volume of the fixer solution in the processor.
  • an amount of fixer starter solution is less than 10 % of volume of replenisher solution with which it is mixed upon starting processing.
  • Fixer solutions may contain aluminum ions as hardening agent but in a preferred embodiment according to the method of the present invention the fixer is free from aluminum ions. It is clear that the light-sensitive black-and-white silver halide photographic materials processed according to the method of the present invention should be hardened to such an extent that in a fixation step free from aluminum ions no problems as e.g. sludge formation or troubles with physical properties of the materials occur.
  • a survey of hardening agents available in order to foreharden coated hydrophilic gelatinous layers of the said photographic materials has been given e.g. in Research Disclosure 38957, Chapter IIb.
  • aluminum salt solutions as e.g.
  • aluminum sulfate may be spray-coated onto or coated in an afterlayer onto the protective antistress layer or another outermost layer of the photographic material, in favour of hardening of the surface layer and in favour of physical properties obtained for the processed material after fixation in a fixer free from hardening aluminum ions, especially with respect to surface glare, pressure sensitivity and unevenness in the processing.
  • the fixer In a process wherein the photographic material passes from the developer to the fixer, said material carries with it a certain amount of developer liquid containing used and unused developing agents and other components. In such process said developing agents thus act as contaminants to the fixer.
  • the fixer is, in a preferred embodiment, contaminated with developer.
  • the efficiency of fixing can be improved by the use of cascade " fixing, in which the photographic material passes through two or more fixing vessels, the fixer moving counter-current to the photographic material.
  • the period of time spent by the photographic material in the fixer is thereby increased while the volume of fixer required to fill the processing apparatus is increased.
  • Said method comprises developing the photographic material by treatment with a developer, and fixing the developed photographic material by treatment with a fixer while reducing the level of silver ions in the fixer by electrolysis, characterized in that, between developing and fixing, the photographic material is treated with an intermediate treatment liquid for a period of time less than the treatment time with the fixer, the intermediate treatment liquid containing used fixer.
  • the apparatus for the processing of photographic material according to the method of the present invention may comprise a plurality of treatment vessels including a developing vessel and a fixing vessel, the apparatus including means for feeding photographic material to be processed along a photographic material path through the developing vessel and the fixing vessel in turn, and an electrolytic cell for removing silver ions from fixer in the fixing vessel, wherein further an intermediate treatment vessel, having a photographic material path length less than that of the fixing vessel, may be positioned between the developing vessel and the fixing vessel and wherein means may be provided for feeding used fixer from the fixing vessel to the intermediate vessel.
  • fixer starter solution is added to the first fixer tank in this case, said first tank containing fixer replenisher solution or that the mixture of fixer starter solution and fixer replenisher solution is present in the first tank before starting processing.
  • the apparatus further comprises a pump for pumping used fixer from the second fixing vessel to the first fixing vessel.
  • the fixing vessels may have a cascade relationship whereby used fixer overflows from the fixing vessel into the intermediate vessel as regeneration liquid is added to the fixing vessel.
  • the treatment vessels may be positioned one above the other in a vertical configuration.
  • the developing vessel may be positioned above the first fixing vessel which in turn is positioned above the second fixing vessel.
  • This configuration is preferred, in order to prevent fixer from entering the developing vessel.
  • a pump will be required to transfer used fixer upwardly into the first fixing vessel.
  • the vessels may be positioned side by side in an essentially horizontal configuration, especially where the fixing vessels have a cascade relationship.
  • An electrolytic silver recovery cell may be of known construction.
  • the cell comprises a cylindrical housing fitted with a central anode surrounded by a removable cathode.
  • the housing has inlets and outlets for the liquid to be desilvered.
  • a glass reference electrode enables control of the desilvering process, which is carried out either at constant potential, at constant current or according to some other control regime.
  • silver is deposited and builds up on the cathode.
  • the cathode is periodically replaced.
  • Silver can be recovered from the used cathode in a known manner, and usually the cathode can be re-used.
  • the silver recovery cell may be an electrolysis unit from an ECORAP " processor (trade mark product from Agfa-Gevaert NV) or a Curix EOSFIX " electrolysis unit (trade marketed product from Agfa-Gevaert NV).
  • An apparatus for the electrolytic recovery of silver from solutions containing silver is known from EP-A 0 611 838 and from US-A 5,639,362.
  • fixer solution for that intermediate treatment liquid has the effect of triggering the start of the fixing reactions.
  • the fixing reactions quickly reach their optimum rate.
  • the photographic material is treated with the first fixer liquid for a period of time less than half that of the fixer treatment time, most preferably less than 25 % that of the fixer treatment time.
  • the intermediate treatment time should be compared with the total fixer treatment time.
  • Treatment with the first fixer liquid for a relatively short period of time can most easily be achieved by providing a shorter photographic material transport path through the intermediate treatment liquid, for example by providing the intermediate treatment liquid in an intermediate vessel having a path length less than that of the vessel containing the fixer, thereby enabling the photographic material to pass through the apparatus at a constant speed.
  • One or more fixing vessels in the method of the present invention are regenerated by addition thereto of the replenisher solution.
  • the fixer is replenished with fixer replenisher solution in an amount of from 20 up to 100 ml/g of silver to be fixed, more preferably from 20 up to 75 ml/g and still more preferably from 20 up to 50 ml/g of silver calculated on the basis of the replenisher solution having the same composition as that of the fixing solution before addition of fixer starter solution.
  • fixer is replenished with fixer replenishing solution in an amount proportional to the tank volume of the fixer solution.
  • sheet materials such as (medical and industrial) X-ray film, pre-sensitised plates, graphic art films and paper, offset plates etc. can be processed.
  • any film for medical diagnostic imaging may be processed, wherein said film may be exposed with a laser directed by digitized data obtained after conversion of information captured by suitable means after exposure to radiation of part of the human body or exposed after conversion of X-rays by one or two intensifying light-emitting screen(s) brought into contact with the said film and wherein said film may comprise cubic and/or ⁇ 111 ⁇ or ⁇ 100 ⁇ tabular silver halide crystals rich in silver chloride and/or crystals rich in silver bromide, crystals rich in silver chloride however being most preferred, provided that with minimum amounts of silver coated a sufficient covering power is attained in the film after rapid ecological processing (with e.g.
  • said method comprises the step of developing in a developing solution, wherein said solution comprises one or more developing agents selected from the group consisting of hydroquinone, 1-phenyl-5-pyrazolidine-1-one, ascorbic acid, reductic acid, stereoisomers or derivatives thereof.
  • developing solutions comprising ascorbic acid have e.g. been disclosed in EP-A's 0 731 381, 0 731 382 and 0 732 619.
  • the method comprises the steps of developing, rinsing, fixing and drying, wherein the total processing time of these steps is from 30 up to 300 seconds.
  • a time of 300 seconds permits processing of e.g. industrial X-ray films coated with huge amounts of silver as has e.g. been described in EP-A's 0 620 482, 0 620 483, 0 620 484, 0 621 506, 0 622 668 and 0 698 817.
  • a total processing time for the processing cycle comprising the steps of developing, rinsing, fixing and drying of from 30 up to 95 seconds, and for medical X-ray films said time is even more preferred between 30 and 60 seconds as set forth e.g. in EP-A 0 678 772, 0 709 730, 0 712 034 and 0 712 036.
  • This Example is illustrative for the (unexpected) influence of fixer seasoning on photographic results obtained.
  • the sensitometric curve of a photographic system is strongly dependent on a large number of parameters among which one is the processing.
  • sensitometric characteristics not only usual processing parameters such as processing speed, agitation, developer composition, replenishing rates, immersion times and processing design is determining sensitometric characteristics. In order to show that seasoning of the fixer solution is also a factor influencing sensitometric characteristics two experiments were performed.
  • the first one was performed with a developer solution continously added as a fresh solution while the fixer solution was seasoning, the second one with a fixer solution added continously as a fresh solution while the developer solution was seasoning.
  • the said film material was exposed in such a way as to have 1/3 of the said total film surface exposed and 2/3 of the said surface unexposed.
  • the first experiment thus shows the effect of exhaustion of the fixer, while the second experiment shows the effect of exhaustion of the developer.
  • the said difference can be considered to be neglectable and the photographic instability to be minimized.
  • carry-over and data of replenishment about 25 ml carry-over, with replenishing amounts of the fixer of 600 ml/m 2 ) one would expect an amount of 4 % of the developer in the fixer to be sufficient to obtain identical sensitometric data.
  • an amount of 8 % of developer in the fixer is required in order to obtain the desired shift in gradation. Further it can be experimentally measured that pH of the fixer shifts from 4.3 to 4.6.
  • pH of the fixer was modified to a value of 4.6, being the same as the end pH in the foregoing experiment, by adding potassium hydroxide.
  • This Example is illustrative for the occurrence of smell of the fixer if no fixer starter in the processor is used according to the method of the present invention.
  • composition of the concentrated fixer solution is given hereinafter: - ammonium thiosulphate 900 ml - sodium metabisulphite 80 g - sodium acetate 80 g - citric acid 8 g addition of demineralized water in order to make 1 l of fixer solution; pH 5.43.
  • EOS FIX equipment (trade name product from Agfa-Gevaert N.V.) in combination with a CURIX HT330 processor (trade name product from Agfa-Gevaert) makes pH decrease from a pH at the start of 5.4 to a value of 5.15 (after seasoning, replenishing amounts being 600 ml/m 2 ) and even to a value of 4.8 for lower replenishing amounts (after seasoning, replenishing amounts being 400 ml/m 2 ). For still lower replenishing amounts differences in pH value at the start and after seasoning may even exceed 0.6 pH units. Application of a replenisher having too low a pH value results in too low a pH value after seasoning, whereas application of a replenisher having too high a pH value results in other problems as will be made clear in the Examples 5 and 6.
  • the processing composition for the developer was as follows: demineralized water 300 ml hydroquinone 88 g 4,4'-hydroxymethyl-methyl-phenidone 4.00 g potassium iodide 0.080 g 5-methylbenzotriazole 0.300 g 1-phenyl-5-mercaptotetrazole 0.030 g aqueous potassium sulphite (655 g/l) 365 ml aqueous potassium carbonate (765 g/l) 55 ml aqueous potassium hydroxyde (755 g/l) 40 ml Trilon B 14 ml Borax 5.25 g Diethylene glycol 86 ml pH (adjusted with potassium hydroxyde) 10.84 Water to make 1 l
  • composition of the fixer is Composition of the fixer:
  • ammonium thiosulphate (778 g/l) 710 ml sodium metabisulphite 80 g sodium acetate.3 aq. 130 g acetic acid 14 ml demineralized water to make 1 liter. pH of the concentrated fixer was 5.29; after dilution (1+3) the pH value was 5.25. Different pH values of the fixer were made by adding sulfuric acid. drying time in seconds fixer pH 4.25 4.50 4.75 5.00 5.25 time (s) 31.7 36.1 35.5 39.0 39.7 " 31.4 36.3 35.4 39.9 40.2 " 31.0 35.6 36.2 40.2 38.7
  • the processing composition for the developer and the fixer was the same as given hereinbefore in Example 5.
  • the drying unit in the processor was installed in such a way that an unexposed MAMORAY MR7 film was completely dry, in order to test if intermix-processing of different types of films was possible. Therefore the quality of the dried CURIX ORTHO DGL film was examined: a qualitative figure from "0" (perfect) over “1” (good), “2” (acceptable), “3” (bad) to "4" (very bad) was given after examination in reflection of gloss of the processed film and examination of the presence of spots due to drying (especially "overdrying”). At the higher fixer pH of 4.9 the qualitative figure is quickly changing from “1" to "4" if more rapid drying is installed in the processor; at lower pH (4.50) a figure of "1" is attainable for the films in the same drying conditions.
EP97203818A 1996-12-30 1997-12-05 Procédé de traitement de materiaux photographiques à l'halogénure d'argent, sensible à la lumière Expired - Lifetime EP0851286B1 (fr)

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EP97203818A EP0851286B1 (fr) 1996-12-30 1997-12-05 Procédé de traitement de materiaux photographiques à l'halogénure d'argent, sensible à la lumière

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EP96203727 1996-12-30
EP96203727 1996-12-30
EP97203818A EP0851286B1 (fr) 1996-12-30 1997-12-05 Procédé de traitement de materiaux photographiques à l'halogénure d'argent, sensible à la lumière

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0368937A (ja) * 1989-08-07 1991-03-25 Konica Corp ハロゲン化銀写真感光材料の処理方法
JPH05100392A (ja) * 1991-10-11 1993-04-23 Chiyuugai Shashin Yakuhin Kk ハロゲン化銀カラー写真感光材料用処理液の供給方法
US5298382A (en) * 1992-02-26 1994-03-29 Fuji Photo Film Co., Ltd. Processing of photographic silver halide photosensitive material and fixer used therein
JPH06230527A (ja) * 1993-02-05 1994-08-19 Fuji Photo Film Co Ltd ハロゲン化銀写真感光材料の処理方法
JPH06250350A (ja) * 1993-02-22 1994-09-09 Fuji Photo Film Co Ltd ハロゲン化銀写真感光材料の処理方法
GB2303220A (en) * 1995-07-06 1997-02-12 Kodak Ltd Photographic developing and fixing process

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0368937A (ja) * 1989-08-07 1991-03-25 Konica Corp ハロゲン化銀写真感光材料の処理方法
JPH05100392A (ja) * 1991-10-11 1993-04-23 Chiyuugai Shashin Yakuhin Kk ハロゲン化銀カラー写真感光材料用処理液の供給方法
US5298382A (en) * 1992-02-26 1994-03-29 Fuji Photo Film Co., Ltd. Processing of photographic silver halide photosensitive material and fixer used therein
JPH06230527A (ja) * 1993-02-05 1994-08-19 Fuji Photo Film Co Ltd ハロゲン化銀写真感光材料の処理方法
JPH06250350A (ja) * 1993-02-22 1994-09-09 Fuji Photo Film Co Ltd ハロゲン化銀写真感光材料の処理方法
GB2303220A (en) * 1995-07-06 1997-02-12 Kodak Ltd Photographic developing and fixing process

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section PQ Week 9118, Derwent World Patents Index; Class P83, AN 91-129335, XP002034540 *
DATABASE WPI Section PQ Week 9321, Derwent World Patents Index; Class P83, AN 93-169874, XP002034543 *
DATABASE WPI Section PQ Week 9438, Derwent World Patents Index; Class P83, AN 94-305674, XP002034542 *
DATABASE WPI Section PQ Week 9441, Derwent World Patents Index; Class P83, AN 94-326961, XP002034541 *

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