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EP0500764B1 - Systeme de regeneration pour revelateur de papier couleur - Google Patents

Systeme de regeneration pour revelateur de papier couleur Download PDF

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Publication number
EP0500764B1
EP0500764B1 EP91900015A EP91900015A EP0500764B1 EP 0500764 B1 EP0500764 B1 EP 0500764B1 EP 91900015 A EP91900015 A EP 91900015A EP 91900015 A EP91900015 A EP 91900015A EP 0500764 B1 EP0500764 B1 EP 0500764B1
Authority
EP
European Patent Office
Prior art keywords
developer
replenishment
colour
exchange resin
components
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
EP91900015A
Other languages
German (de)
English (en)
Other versions
EP0500764A1 (fr
Inventor
Peter Jeffery Twist
Nigel Edgewick Milner
David Mcdonald Henson
John Richard Fyson
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.)
Kodak Ltd
Eastman Kodak Co
Original Assignee
Kodak Ltd
Eastman Kodak Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kodak Ltd, Eastman Kodak Co filed Critical Kodak Ltd
Priority to AT91900015T priority Critical patent/ATE96234T1/de
Publication of EP0500764A1 publication Critical patent/EP0500764A1/fr
Application granted granted Critical
Publication of EP0500764B1 publication Critical patent/EP0500764B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • G03C7/44—Regeneration; Replenishers

Definitions

  • This invention relates to a method of processing photographic silver halide colour material and in particular to the replenishment of a developer solution system for colour paper.
  • replenishment systems of the prior art liquid replenisher is added to the developer solution and spent developer is removed by allowing overflow. A stable condition in which chemicals used up during processing are replenished to maintain a working concentration may thus be maintained.
  • replenishment systems which involve overflow are environmentally undesirable and the objective of the present invention is to provide a replenishment system without overflow.
  • a system for replenishing a colour paper processing system is described in European Specification No. 0,173,203.
  • Using a concentrated source of replenishment can result in zero-overflow from the developer tank and a build-up of seasoning products which is not significantly detrimental to sensitometry. This could involve rebalancing the sensitized coating to match aim sensitometry in the presence of higher levels of seasoning products. This is a major operation and is best avoided if a simpler option as is described in our invention is available.
  • Another special case is where even though seasoning products do build-up with use, they do not affect sensitometry because the developer used already contains a more powerful inhibitor.
  • Japanese Application 62/019842 describes a method of reducing the bromide ion concentration of colour developer for silver bromide colour paper by coating an ion-exchange resin on the back of the colour paper. This then takes up bromide ions as it passes through the developer solution. Clearly this process is undesirable because a special and more costly photographic paper has to be used thus rendering the paper more expensive and the process non-universal.
  • the process wastes otherwise regeneratable ion-exchange resin.
  • a method of processing a photographic silver halide colour paper including the steps of replenishing the colour developer solution with a sufficiently small volume of replenishment components such that substantially no overflow is produced and removing by an in-line ion exchange resin system components which build up to an excessive concentration.
  • 'In-line' means that the ion exchange system is contained in an integrated facility connected or connectable with the tank in which the processing takes place.
  • the overall volume of replenishment added is approximately equal to the volume loss caused by take-off by the paper and evaporation.
  • the build-up in the liquid system of halides, principally chlorides, and to some extent sulphates is controlled by an on-line ion exchange system which is operated from time to time to remove these undesirable ions and return the processed solution back to the vessel in which the liquid system is contained.
  • a replenishment system for a colour paper development solution system essentially comprises two components:
  • the colour developing agent e.g. ⁇ methane sulphonamide-ethyl ethyl aminotoluidine sesquisulphate hydrate known as CD3, and an activator/replenisher for the other elements of the system as will subsequently be explained.
  • the CD3 component can be added in solid form or as a liquid concentrate.
  • the salt is essentially acid so is readily dissolved in the basic development solution with no substantial increase in volume.
  • the activator/replenisher is added as a liquid.
  • the ion-exchange resin may comprise anionic (for the exchange of anions) or amphoteric types or mixtures thereof.
  • anionic resin is based on a polystyrene matrix cross-linked, for example, with 3% to 5% of divinylbenzene. Its strongly basic character is derived from quaternary ammonium groups. Examples of suitable anionic exchange resins are:
  • the in-line ion-exchange resin is preferably located in a cartridge through which the contents of the colour developer tank are pumped either continuously or when required. When it has been exhausted it may be discarded or regenerated as will be well understood.
  • a replenishment assembly comprises: (a) Solid CD3 addition in an amount calculated at 5.76 mg/dm2 of photographic colour paper having substantially pure chloride emulsions.
  • This solid additive may be in the form of an acidic pellet which dissolves readily with the evolution of carbon dioxide in the basic developer solution. As alternatives the solid additive may be on a coated tape or in some kind of perforated container. However, the simple pellet method has been found to work quite effectively.
  • This activator/replenishment solution was preferably kept in, and dispensed from a collapsible container. If the volume drops due to carry out on the developed paper the level is topped up with water.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Wet Developing In Electrophotography (AREA)
  • Liquid Developers In Electrophotography (AREA)

Claims (3)

  1. Un procédé pour le traitement d'un papier pour la photographie en couleurs à l'halogénure d'argent, comprenant les étapes de régénération de la solution de révélateur chromogène avec un volume de composants de régénération suffisamment faible pour qu'il ne se produise sensiblement pas de débordement et d'élimination, avec un système à résine échangeuse d'ions en ligne, des composants qui s'accumulent à une concentration excessive.
  2. Un procédé selon la revendication 1, dans lequel le faible volume des composants de régénération comprend le révélateur sous forme d'un solide ou d'un concentré liquide et les autres composants sous forme d'un liquide.
  3. Un procédé selon la revendication 1 ou la revendication 2, dans lequel la résine échangeuse d'ions est une résine ionique et est à base d'une matrice de polystyrène réticulé.
EP91900015A 1989-11-09 1990-10-31 Systeme de regeneration pour revelateur de papier couleur Expired - Lifetime EP0500764B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT91900015T ATE96234T1 (de) 1989-11-09 1990-10-31 Regenerier- und nachfuellsystem fuer farbbildentwickler.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB898925276A GB8925276D0 (en) 1989-11-09 1989-11-09 Replenishment system for colour paper developer
GB8925276 1989-11-09

Publications (2)

Publication Number Publication Date
EP0500764A1 EP0500764A1 (fr) 1992-09-02
EP0500764B1 true EP0500764B1 (fr) 1993-10-20

Family

ID=10665969

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91900015A Expired - Lifetime EP0500764B1 (fr) 1989-11-09 1990-10-31 Systeme de regeneration pour revelateur de papier couleur

Country Status (6)

Country Link
EP (1) EP0500764B1 (fr)
JP (1) JP2944205B2 (fr)
AT (1) ATE96234T1 (fr)
DE (1) DE69004100T2 (fr)
GB (1) GB8925276D0 (fr)
WO (1) WO1991007699A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USH1648H (en) * 1995-06-07 1997-05-06 Kim; Hongzoon Method for storing and regenerating photographic processing solutions
GB2306686A (en) * 1995-10-18 1997-05-07 Kodak Ltd Processing system for developing photographic materials
WO2004095131A1 (fr) * 2003-04-23 2004-11-04 Konica Minolta Photo Imaging, Inc. Materiau photographique photosensible a l'halogenure d'argent, et son procede de traitement
WO2004095128A1 (fr) * 2003-04-23 2004-11-04 Konica Minolta Photo Imaging, Inc. Procede de traitement d'un materiau photosensible photographique a base d'halogenure d'argent
WO2004095130A1 (fr) * 2003-04-23 2004-11-04 Konica Minolta Photo Imaging, Inc. Procede de traitement d'un materiau photographique photosensible a l'halogenure d'argent
WO2004095129A1 (fr) * 2003-04-23 2004-11-04 Konica Minolta Photo Imaging, Inc. Materiau photosensible photographique a base d'halogenure d'argent et procede de traitement dudit materiau
WO2004095132A1 (fr) * 2003-04-23 2004-11-04 Konica Minolta Photo Imaging, Inc. Materiau photographique photosensible a l'halogenure d'argent, et son procede de traitement

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5674247A (en) * 1979-11-22 1981-06-19 Konishiroku Photo Ind Co Ltd Method for continuously processing silver halide photographic material
DE3431860A1 (de) * 1984-08-30 1986-03-06 Agfa-Gevaert Ag, 5090 Leverkusen Verfahren zur herstellung farbfotografischer bilder
JPH0830881B2 (ja) * 1988-11-10 1996-03-27 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

Also Published As

Publication number Publication date
ATE96234T1 (de) 1993-11-15
DE69004100T2 (de) 1994-03-17
DE69004100D1 (de) 1993-11-25
EP0500764A1 (fr) 1992-09-02
GB8925276D0 (en) 1989-12-28
JPH05502115A (ja) 1993-04-15
JP2944205B2 (ja) 1999-08-30
WO1991007699A1 (fr) 1991-05-30

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