EP0481251B1 - Procédé de blanchiment-fixage - Google Patents

Procédé de blanchiment-fixage Download PDF

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Publication number
EP0481251B1
EP0481251B1 EP91116252A EP91116252A EP0481251B1 EP 0481251 B1 EP0481251 B1 EP 0481251B1 EP 91116252 A EP91116252 A EP 91116252A EP 91116252 A EP91116252 A EP 91116252A EP 0481251 B1 EP0481251 B1 EP 0481251B1
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EP
European Patent Office
Prior art keywords
mol
bleach
silver
layer
fixing
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
Application number
EP91116252A
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German (de)
English (en)
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EP0481251A1 (fr
Inventor
Gustav Dipl.-Ing. Tappe
Ralf Dr. Wichmann
Heinz Dr. Meckl
Edgar Dr. Draber
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Agfa Gevaert AG
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Agfa Gevaert AG
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Filing date
Publication date
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Publication of EP0481251A1 publication Critical patent/EP0481251A1/fr
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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

Definitions

  • the invention relates to a bleach-fixing bath which is suitable for processing color photographic silver halide materials and which is particularly environmentally friendly.
  • iron complex salts of aminopolycarboxylic acids for example the iron ammonium complex salt of ethylenediaminetetraacetic acid, are usually used as bleaching agents.
  • This and similar complexing agents that are also used are only very slowly biodegradable and therefore accumulate in the environment.
  • bleach-fixing baths containing iron complexes of readily biodegradable complexing agents such as nitrilotriacetic acid are used, then they lack sufficient bleaching capacity.
  • the object of the invention was to provide a bleach-fixing bath suitable for processing color photographic silver halide materials with silver chloride bromide emulsions with 0.3 to 2 mol% of silver bromide, which contains readily biodegradable constituents, has a sufficient bleaching effect and does not have any fixed excretions even after a long standing time.
  • complexing agents can be conventional complexing agents such as ethylenediaminetetraacetic acid, propylenediaminetetraacetic acid, nitrilotriacetic acid or nitrilodipropion monoacetic acid or mixtures of these compounds. Only the complexing agent according to the invention is preferably used.
  • thiosulfates come e.g. Sodium, potassium and ammonium thiosulfate into consideration, which are preferably used in an amount of 0.2 to 2 mol / l.
  • Preferred bleach-fix baths also contain 0.02 to 0.3 mol / l sulfite.
  • the bleach-fix bath preferably contains an excess of 1 to 120 mol%, preferably 5 to 20 mol%, based on the iron complex, of free complexing agent.
  • the complexing agent of the formula I according to the invention advantageously differs from the other complexing agents known to be biodegradable when used as iron (III) complex in bleach-fixing baths.
  • iron (III) complex in bleach-fixing baths.
  • NTA nitrilotriacetic acid
  • IDA iminodiacetic acid
  • HEIDA hydroxyethyliminodiacetic acid
  • the bleach-fixing bath according to the invention is particularly suitable for color photographic silver halide recording materials which have at least one blue-sensitive, at least one green-sensitive and at least one red-sensitive silver halide emulsion layer on a reflective support (for example paper coated on both sides with polyethylene) Sequence at least one yellow coupler, at least one magenta coupler and at least one cyan coupler are assigned.
  • the bleach-fixing bath according to the invention is used within the customary processing method for color photographic silver halide materials.
  • the processing method can be carried out continuously with constant regeneration of the individual processing baths.
  • the bleach-fixing baths listed in the examples were examined for their bleaching behavior (residual silver in the processed material).
  • the exposed step wedge of the photographic material which was subsequently processed as described below, was examined for residual silver in the image blackness using an infrared silver detector PM 8030 from Photo-Matic, Denmark.
  • a color photographic recording material was produced by applying the following layers in the order given to a support on paper coated on both sides with polyethylene. The quantities are based on 1 m. For the silver halide application, the corresponding amounts of AgNO3 are given.
  • a step wedge was exposed on the photographic material described above and processed as follows: Develop 45s 35 ° C Fix bleach 45s 35 ° C Water 90s approx. 30 ° C dry Watering is carried out in 4 cascade stages of 22.5s each.
  • the individual processing baths had the following composition:
  • Ethylenediaminetetraacetic acid EDTA 2 g Hydroxyethane diphosphonic acid (HEDP) 60 wt .-% 0.5 ml
  • EDTA Ethylenediaminetetraacetic acid
  • HEDP Hydroxyethane diphosphonic acid
  • Sodium chloride 2 g N, N-diethylhydroxylamine, 85% by weight 5 ml
  • Potassium carbonate 25 g pH adjustment to 10 with KOH or H2SO4. Make up to 1 liter with water.
  • NTA Nitrilotriacetic acid
  • IDA Iminodiacetic acid
  • HEIDA Hydroxyethyliminodiacetic acid
  • ADA Nitrilomonopropionediacetic acid
  • the table shows that the detector value for freedom from silver, which should be ⁇ 4.0, can only be achieved with the iron complex of nitrilomonopropionediacetic acid.
  • Example 1 The material mentioned in Example 1 was processed in the process described there, with the exception that a stabilizer bath was used instead of the washing. The stabilization took place in 4 cascade steps of 22.5 s each at 35 ° C.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)

Claims (3)

  1. Procédé de blanchiment-fixage d'un matériau pour photographie en couleur éclairé et développé, dont les couches d'émulsion d'halogénure d'argent comportent des émulsions de chlorobromure d'argent avec de 0,3 à 2% en moles de bromure d'argent, caractérisé en ce que
    (1) le bain de blanchiment-fixage contient comme agent de blanchiment un complexe de fer (III) dont l'agent complexant est constitué pour au moins 50% en moles d'un composé de formule
    Figure imgb0008
    (2) la valeur du pH x a été réglée de façon à satisfaire à la relation 7,0 > x > 4,5, et
    (3) il contient un thiosulfate.
  2. Procédé selon la revendication 1, caractérisé en ce que l'agent complexant correspond, pour au moins 80% en moles, à la formule (I).
  3. Procédé selon la revendication 1, caractérisé en ce que le bain de blanchiment-fixation contient un excès d'agent complexant libre compris entre 1 et 120% en moles.
EP91116252A 1990-10-06 1991-09-24 Procédé de blanchiment-fixage Expired - Lifetime EP0481251B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4031757A DE4031757A1 (de) 1990-10-06 1990-10-06 Bleichfixierverfahren
DE4031757 1990-10-06

Publications (2)

Publication Number Publication Date
EP0481251A1 EP0481251A1 (fr) 1992-04-22
EP0481251B1 true EP0481251B1 (fr) 1996-02-07

Family

ID=6415781

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91116252A Expired - Lifetime EP0481251B1 (fr) 1990-10-06 1991-09-24 Procédé de blanchiment-fixage

Country Status (4)

Country Link
US (1) US5149618A (fr)
EP (1) EP0481251B1 (fr)
JP (1) JPH04263250A (fr)
DE (2) DE4031757A1 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69215656T2 (de) * 1991-12-27 1997-06-12 Konishiroku Photo Ind Verfahren zur Behandlung von farbphotografischen lichtempfindlichen Silberhalogenidmaterialien
JP3086979B2 (ja) * 1992-02-17 2000-09-11 コニカ株式会社 漂白液または漂白定着液およびこれら処理液を用いてのハロゲン化銀カラー写真感光材料の処理方法
JP3084119B2 (ja) * 1992-02-25 2000-09-04 コニカ株式会社 ハロゲン化銀写真感光材料の処理方法
JPH05307251A (ja) * 1992-04-28 1993-11-19 Fuji Photo Film Co Ltd ハロゲン化銀カラー写真感光材料の処理方法
JP2886748B2 (ja) * 1992-09-17 1999-04-26 富士写真フイルム株式会社 写真用処理組成物及び処理方法
JP3208686B2 (ja) * 1992-11-25 2001-09-17 コニカ株式会社 ハロゲン化銀写真用処理剤組成物及び処理方法
DE69426851T2 (de) * 1993-09-28 2001-09-13 Eastman Kodak Co., Rochester Fotografische Entwicklungs-Lösung, die ternäre Ferri-Komplexsalze enthält
JP3449435B2 (ja) * 1993-12-24 2003-09-22 富士写真フイルム株式会社 ハロゲン化銀カラー写真感光材料の処理方法
US5508150A (en) * 1993-12-29 1996-04-16 Eastman Kodak Company Fixer additives used in combination with iron complex based bleaches to prevent iron retention
US5434035A (en) * 1993-12-29 1995-07-18 Eastman Kodak Company Fixer additives used in combination with iron complex based bleaches to improve desilvering
US5582958A (en) * 1995-01-10 1996-12-10 Eastman Kodak Company Photographic bleaching composition and processing method using ternary iron carboxylate complexes as bleaching agents
FR2731282B1 (fr) * 1995-03-02 1997-04-25 Kodak Pathe Composition de developpement d'un produit photographique expose ayant une stabilite a l'air ameliore
US5693456A (en) * 1996-02-01 1997-12-02 Eastman Kodak Company Photographic bleaching compositions and method of photographic processing using mixture of ferric complexes
US6197483B1 (en) 1998-12-18 2001-03-06 Eastman Kodak Company Photographic processing using biodegradable bleaching agent followed by fixing
US8293696B2 (en) * 2009-02-06 2012-10-23 Ecolab, Inc. Alkaline composition comprising a chelant mixture, including HEIDA, and method of producing same

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT7925699A0 (it) * 1978-09-14 1979-09-12 Eastman Kodak Co Composizioni fotografiche di sbianca, e metodi per trattamento fotografico.
AU590557B2 (en) * 1985-04-25 1989-11-09 Konishiroku Photo Industry Co., Ltd. Processing method of light-sensitive silver halide color photographic material
US4774169A (en) * 1985-08-06 1988-09-27 Konishiroku Photo Industry Co., Ltd. Processing solution for developing a silver halide color photographic material and a method of developing the same
JPH0675183B2 (ja) * 1986-02-07 1994-09-21 富士写真フイルム株式会社 ハロゲン化銀カラ−写真感光材料の処理方法
EP0243866B1 (fr) * 1986-04-23 1994-03-09 Konica Corporation Méthode de traitement d'un matériau photographique couleur à l'halogénure sensible à la lumière
EP0270217B1 (fr) * 1986-10-08 1993-08-04 Konica Corporation Solution de blanchiment-fixage ayant un bon rendement de traitement et méthode de traitement d'un matériau sensible à la lumière l'utilisant
JP2622839B2 (ja) * 1987-05-25 1997-06-25 コニカ株式会社 漂白用パーツ組成物

Also Published As

Publication number Publication date
US5149618A (en) 1992-09-22
JPH04263250A (ja) 1992-09-18
DE4031757A1 (de) 1992-04-09
EP0481251A1 (fr) 1992-04-22
DE59107383D1 (de) 1996-03-21

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