[go: up one dir, main page]

EP0500592A1 - Systeme de regeneration a effluent lent pour revelateurs de negatifs en couleur. - Google Patents

Systeme de regeneration a effluent lent pour revelateurs de negatifs en couleur.

Info

Publication number
EP0500592A1
EP0500592A1 EP90915970A EP90915970A EP0500592A1 EP 0500592 A1 EP0500592 A1 EP 0500592A1 EP 90915970 A EP90915970 A EP 90915970A EP 90915970 A EP90915970 A EP 90915970A EP 0500592 A1 EP0500592 A1 EP 0500592A1
Authority
EP
European Patent Office
Prior art keywords
developer
processing
ion
exchange resin
solution
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
EP90915970A
Other languages
German (de)
English (en)
Other versions
EP0500592B1 (fr
Inventor
Peter Jeffery Woodside L Twist
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 AT90915970T priority Critical patent/ATE94659T1/de
Publication of EP0500592A1 publication Critical patent/EP0500592A1/fr
Application granted granted Critical
Publication of EP0500592B1 publication Critical patent/EP0500592B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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 materials and in particular to the replenishment of colour developer for colour negative film.
  • Colour negative films are processed in an industry standard process called C—41.
  • C—41 systems are run on the basis that a replenisher solution is added to the developer and excess developer is removed by letting it overflow.
  • the developer solution thus achieves a stable condition in which chemicals used up during processing are replenished to maintain a working concentration and seasoning products e.g. bromide and iodide ions and antifoggant fragments from DIR couplers entering the developer solution from the film are kept at an acceptable level.
  • Recent C—41 systems are run on a developer replenishment rate of from 500 to 1800 2 ml/m of film processed.
  • Colour paper is also processed in a replenished system but current colour paper is based on silver chloride emulsions containing very little bromide or iodide. This permits a replenishment regime in which there is little or no need to remove bromide and iodide hence the developer can be replenished with a more than usually concentrated replenisher which does not cause overflow.
  • a concentrated source of replenishment can result in zero—overflow from the developer tank and a build—up of seasoning products which is not sign fi antly detrimental to sensitometry. This could involve rebalancing the sensitized coating to match aim sensitometry in the presence of higher levels of seasoning products.
  • 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.
  • 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 coating of such a material on film (having a transparent base) is likely to result in an unacceptably degraded image.
  • the present invention can be configured to remove halide ions at the rate at which they are generated. Tn addition, antifoggant fragments are similarly removed.
  • This invention therefore, uses both in—line ion-exchange and concentrated-replenisher addition to enable the theoretical minimum chemical input for a C—41 developer solution in a single developer tank configuration.
  • One of the main advantages of this invention is the significant reduction in effluent that arises from its use.
  • the normal developer replenishment rate for Kodak VR400 film in C-41 is 1675 ml/m 2 for 35 mm film although this has now been lowered to about 841 2 ml/m with the new C-41 LORR (Low Replenishment
  • a further advantage of the present invention is the reduced chemical input that is necessary by virtue of the reduced effluent and the greater proportion of the chemicals being used to generate image.
  • the system in the present invention is also ideally suited to be controlled by a replenisher management unit that could adjust the chemical input to account for different film types and utilisation conditions.
  • Fig 1 represents the developer tank with its inlets and outlets and
  • Fig 2 is a control chart for the process described in the Example.
  • Fig 1 shows a developer tank to which additions of activator solution and solid CD4 colour developing agent are made. There is a carry—out of developer solution on the film and, should the volume drop, due to evaporation, the level is made up with water.
  • the ion-exchange cartridge is attached to the tank as shown and developer is circulated through it, eg with a pump, preferably only when there is film being processed.
  • 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 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.
  • the replenisher may be in the form of a solution or a solid. However, its exact form must be such that at normal replenishment rates under normal working conditions substantially no overflow is caused.
  • the replenisher components are added as an activator solution and a solution of colour developing agent; in another, the colour developer is added as a solid.
  • the replenisher components may be added as three separate solutions having the following compositions: PART A
  • the present invention can also be used to deliberately control tank chemical levels to some values other than those in normal working tank chemistry. This might be desirable for special uses where non-standard sensitometry, e.g. higher speed is needed.
  • the film to be processed may be any camera-speed colour negative film such as those commercially available or as described in Research Disclosure Item 17643 December 1978 pages 22-31 published by Kenneth Mason Publications of Emsworth, Hampshire, United Kingdom. The following example is included for a better understanding of the invention. The word 'Kodak' is a trade mark. EXAMPLE A seasoning run was carried out for several months to establish the basic operating procedure and the chemical addition and ion—exchange rates. The three elements of the replenishment system are: (i) the activator ( ⁇ ) the addition of solid or concentrated
  • the overall average film throughput was about 62 linear metres per day of VR400 which was exposed to average customer density.
  • Solid CD4 was added at the above rates in proportion to the amount of film processed. In practice this was done by removing some developer solution, adding a weighed amount of solid CD4 to this and replacing the same into the developer tank. Although the seasoning run described above was carried out by using the addition of solid CD4, a
  • CD4 concentrate may equally be used with closely similar results.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Treatment Of Water By Ion Exchange (AREA)

Abstract

Procédé de traitement d'une pellicule photographique de négatifs en couleur d'halogénure d'argent, dans lequel la solution de développement est: (i) traitée à l'aide d'une résine d'échange d'ions en ligne, permettant d'éliminer les produits vieillissants du révélateur, et (ii) régénérée à l'aide d'un volume suffisamment faible de constituants de solution de redosage, pour qu'aucun débordement ne se produise.
EP90915970A 1989-11-09 1990-10-31 Systeme de regeneration a effluent lent pour revelateurs de negatifs en couleur Expired - Lifetime EP0500592B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90915970T ATE94659T1 (de) 1989-11-09 1990-10-31 Abwasserarmes regeneriersystem fuer farbnegativentwickler.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8925311 1989-11-09
GB898925311A GB8925311D0 (en) 1989-11-09 1989-11-09 Low effluent replenishment system for colour negative developers

Publications (2)

Publication Number Publication Date
EP0500592A1 true EP0500592A1 (fr) 1992-09-02
EP0500592B1 EP0500592B1 (fr) 1993-09-15

Family

ID=10665992

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90915970A Expired - Lifetime EP0500592B1 (fr) 1989-11-09 1990-10-31 Systeme de regeneration a effluent lent pour revelateurs de negatifs en couleur

Country Status (5)

Country Link
EP (1) EP0500592B1 (fr)
JP (1) JP2944204B2 (fr)
DE (1) DE69003396T2 (fr)
GB (1) GB8925311D0 (fr)
WO (1) WO1991007698A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4120867A1 (de) * 1991-06-25 1993-01-07 Agfa Gevaert Ag Fotografisches verarbeitungsverfahren und vorrichtung dafuer
US5780189A (en) * 1991-08-01 1998-07-14 Eastman Kodak Company Apparatus and method for controlling the chemical activity of processing solution in a photographic processing apparatus
GB9118007D0 (en) * 1991-08-21 1991-10-09 Kodak Ltd Method for replenishing photographic developer solutions
JP2820245B2 (ja) * 1992-12-30 1998-11-05 カルター・リミテッド 写真用溶液からのエリトルベートの回収
GB9301857D0 (en) * 1993-01-30 1993-03-17 Kodak Ltd Method of processing photographic silver halide material
GB9301852D0 (en) * 1993-01-30 1993-03-17 Kodak Ltd Method of processing photographic silver halide material
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
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
FR2754360A1 (fr) * 1996-10-08 1998-04-10 Eastman Kodak Co Procede de renouvellement d'un revelateur a l'acide ascorbique

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3431860A1 (de) * 1984-08-30 1986-03-06 Agfa-Gevaert Ag, 5090 Leverkusen Verfahren zur herstellung farbfotografischer bilder
DE3437631A1 (de) * 1984-10-13 1986-04-24 Agfa-Gevaert Ag, 5090 Leverkusen Aufbereitung von gebrauchten entwicklern
EP0252185A1 (fr) * 1986-07-11 1988-01-13 Agfa-Gevaert N.V. Procédé et appareil pour enlever des anions complexes d'argent dissous de solutions aqueuses
US4857950A (en) * 1987-02-13 1989-08-15 Fuji Photo Film Co., Ltd. Wash water reservoiring method and apparatus therefore
JPH01267649A (ja) * 1988-04-20 1989-10-25 Fuji Photo Film Co Ltd 感光材料処理装置
GB8909577D0 (en) * 1989-04-26 1989-06-14 Kodak Ltd A method of recovering silver from photographic processing solutions
JPH03141352A (ja) * 1989-10-27 1991-06-17 Fuji Photo Film Co Ltd ハロゲン化銀感光材料の処理方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9107698A1 *

Also Published As

Publication number Publication date
EP0500592B1 (fr) 1993-09-15
DE69003396D1 (de) 1993-10-21
GB8925311D0 (en) 1989-12-28
WO1991007698A1 (fr) 1991-05-30
DE69003396T2 (de) 1994-05-11
JPH05505244A (ja) 1993-08-05
JP2944204B2 (ja) 1999-08-30

Similar Documents

Publication Publication Date Title
EP0500592B1 (fr) Systeme de regeneration a effluent lent pour revelateurs de negatifs en couleur
US5565308A (en) Method of processing black and white photographic elements using processors having low volume thin tank designs
EP0555423A1 (fr) Procede d'elaboration d'une image photographique couleur
JP2944205B2 (ja) カラーペーパー現像液用補充系
JPS6143749A (ja) ハロゲン化銀写真感光材料の処理方法
EP0530889B1 (fr) Méthode pour régénérer des solutions révélatrices photographiques
EP0609940B1 (fr) Procédé de traitement d'un matériau photographique à l'halogénure d'argent
EP0609939B1 (fr) Procédé de traitement d'un matériau photographique à l'halogénure d'argent
US5736304A (en) Method of processing black-and-white photographic materials
US5698381A (en) Processing system for the development of photographic materials
EP0661593A2 (fr) Additifs de fixation utilisé avec des basins de blanchiment à base de complexe de fer pour améliorer la désargentation
JPH11194458A (ja) 黒白ハロゲン化銀写真材料の処理方法
EP0717314B1 (fr) Méthode pour le blanchiment de matériaux photographiques en utilisant le peroxyde
US5869223A (en) Method for replenishing an ascorbic acid developer
EP0742481A1 (fr) Procédé de traitement de matériaux photographiques en noir et blanc
JPH0247733B2 (ja) Shashinkankozairyonoshorihoho
US5702874A (en) Method of processing photographic silver halide materials
JPS6158029B2 (fr)
US5884116A (en) Photographic processing apparatus
JPH08254802A (ja) 経時した写真発色現像液からの錫の除去方法
JPS6323527B2 (fr)
JPH08328229A (ja) 定着液の補充をコントロールする方法
Cummins et al. Concentrated developer replenishers for Eastman color film processing
JPS6045417B2 (ja) 定着液の再生法
JPH06242574A (ja) 感光材料処理方法及び処理装置

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19920504

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE

17Q First examination report despatched

Effective date: 19921130

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19930915

Ref country code: NL

Effective date: 19930915

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19930915

Ref country code: ES

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19930915

Ref country code: DK

Effective date: 19930915

Ref country code: BE

Effective date: 19930915

Ref country code: AT

Effective date: 19930915

REF Corresponds to:

Ref document number: 94659

Country of ref document: AT

Date of ref document: 19931015

Kind code of ref document: T

REF Corresponds to:

Ref document number: 69003396

Country of ref document: DE

Date of ref document: 19931021

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19931031

ITF It: translation for a ep patent filed
ET Fr: translation filed
NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19990913

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19991013

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19991027

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19991220

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20001031

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20001031

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20001031

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20001031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010629

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010703

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20051031