EP0415172B1 - Dispositif de traitement final à contre-courant - Google Patents

Dispositif de traitement final à contre-courant Download PDF

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Publication number
EP0415172B1
EP0415172B1 EP90115540A EP90115540A EP0415172B1 EP 0415172 B1 EP0415172 B1 EP 0415172B1 EP 90115540 A EP90115540 A EP 90115540A EP 90115540 A EP90115540 A EP 90115540A EP 0415172 B1 EP0415172 B1 EP 0415172B1
Authority
EP
European Patent Office
Prior art keywords
final treatment
tube
photographic material
tank
treatment bath
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
EP90115540A
Other languages
German (de)
English (en)
Other versions
EP0415172A3 (en
EP0415172A2 (fr
Inventor
Ubbo Dr. Wernicke
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
Original Assignee
Agfa Gevaert AG
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 Agfa Gevaert AG filed Critical Agfa Gevaert AG
Publication of EP0415172A2 publication Critical patent/EP0415172A2/fr
Publication of EP0415172A3 publication Critical patent/EP0415172A3/de
Application granted granted Critical
Publication of EP0415172B1 publication Critical patent/EP0415172B1/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
    • G03D—APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
    • G03D3/00—Liquid processing apparatus involving immersion; Washing apparatus involving immersion
    • G03D3/02—Details of liquid circulation
    • G03D3/06—Liquid supply; Liquid circulation outside tanks
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03D—APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
    • G03D3/00—Liquid processing apparatus involving immersion; Washing apparatus involving immersion
    • G03D3/02—Details of liquid circulation

Definitions

  • the invention relates to a device according to the preamble of patent claim 1.
  • washing devices with one or more washing containers are known, which are passed through one after the other by the photographic material.
  • the regularly required supply of fresh water is introduced into the last of the washing tanks so that the lowest concentration of the chemicals of the treatment baths to be removed from the photographic layer is present there.
  • the overflow of the last washing container is then led into the washing container lying in front of it, so that the concentration of chemicals increases in the opposite direction of the photographic material.
  • This principle is known both from chemical process engineering and from heat exchangers as a countercurrent principle. Here are the The greater the number of successive treatment stages, the better the treatment results. However, the effort for such a treatment device also increases with the number of containers.
  • Such a device is known for example from DE-A-33 20 787, the effect of which is increased by the fact that on the inlet side of the photographic material there is arranged an overflow weir with drainage channel extending over the tank width, and a first one that extends over the tank width extending pair of rollers with an axis plane inclined with respect to the water level, a narrow gap remaining in comparison with the tank length remaining between the drainage channel and the roller of the pair of rollers adjacent to it, that in the lower part of the tank a spray tube parallel to the roller extending over the tank width for water supply with essentially after the outlet openings are arranged in such a way that the jet emerging from the spray tube is directed onto the gap between the drainage channel and the roller.
  • This device can also be used in a water-free processing process in which the final rinsing is replaced by treatment of the material with a stabilizing solution, but the increase in effectiveness compared to devices which do not have the spray tube is not so significant that the number of tanks for stabilizer treatment could be reduced.
  • a water-free processing method with stabilizer treatment as a final bath e.g.
  • 4 tanks for stabilizer treatment are arranged as a countercurrent cascade, which are operated with a regeneration rate of 248 ml / m2 and a residence time of 22.5 seconds / tank and take into account a carry-over rate of approx. 80 ml / m2.
  • the following measures can be used to reduce to just 3 tanks with the same material throughput and the same dilution effect: Increasing the regeneration rate to at least 400 ml / m2, which is undesirable because it leads to a significantly increased amount of used stabilizing bath.
  • the object of the invention is to provide a final treatment device which, with the same effectiveness as before, manages with a smaller number of treatment tanks.
  • the final treatment bath can be a watering or a stabilizing bath.
  • the tube Preferably at most 1/5, especially 1/10 to 1/100, of the final treatment bath is in the tube.
  • the pipe dips into the tank at least as far as it corresponds to 50% of the fill level of the tank.
  • the maximum immersion depth of the pipe is limited by the extent of the technical installations (deflection rollers etc.) in the tank.
  • the width of the tube is determined by the width of the photographic material.
  • a further, similarly designed tube is attached, through which the photographic material is guided, the tube being connected directly to the outlet a few mm below the liquid level by means of a laterally attached tube is.
  • Fig. 1 an embodiment of the invention is sketched with an inlet and outlet-side tube.
  • a commercial color paper is developed as follows in the commercial process.
  • bath time Regeneration rate developer 45 ′ 240 ml / m2 Bleach-fixer 45 ′ 160 ml / m2 stabilizer 30 ′ 200 ml / m2 stabilizer 30 ′ 200 ml / m2 stabilizer 30 ′ 200 ml / m2 stabilizer 30 ′ 200 ml / m2 stabilizer 30 ′ 200 ml / m2 m2
  • the tank volume of the stabilizer tanks is approx. 6 liters.
  • the tanks are not cascaded.
  • the essential components of the bleach-fix bath used are Ammonium thiosulfate 100 g / l Iron ammonium EDTA 50 g / l Sodium sulfite 20 g / l
  • the concentration of the bleach-fix bath is kept constant by adding a suitable regenerator.
  • the concentration of ammonium thiosulfate and iron ammonium EDTA in the first tank after the bleach-fix bath is then determined analytically: Ammonium thiosulfate 19 g / l Iron ammonium EDTA 9.1 g / l
  • the concentrations in the second tank after the bleach-fix bath are also determined: Ammonium thiosulfate 4.6 g / l Iron ammonium EDTA 1.9 g / l
  • the pipe according to the invention is installed on the outlet part of the first tank after the bleach-fix bath: upper end above level, lower end narrowed by wiper lips; Length 20 cm, clear width 15 mm.
  • the color paper runs through this tube, in which about 5% of the bath volume is located, before it leaves the tank 1 after the bleach-fixing bath and enters the tank 2 after the bleach-fixing bath.
  • the regenerator is added to the upper opening of the tube, semi-continuously with a reciprocating pump with 200 ml / m2.
  • the concentrations in tank 2 are determined analytically after the bleach-fix bath: Ammonium thiosulfate 1.0 g Iron ammonium EDTA 0.4 g
  • the equilibrium concentrations in the tank 2 after the bleach-fix bath behave as 1: 0.2, i.e. the system according to the invention is 5 times more effective than the conventional method.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Photographic Processing Devices Using Wet Methods (AREA)
  • Photographic Developing Apparatuses (AREA)

Claims (4)

  1. Dispositif de traitement final à contre-courant pour matériau photographique sans fin consistant en une cuve de traitement final (1) avec une arrivée du bain de traitement final et une sortie du bain de traitement final enrichi en produits chimiques et des rouleaux actionnés (5) pour le transport du matériau photographique dans la cuve suivant un trajet en U, caractérisé en ce que du côté de la sortie du matériau photographique est disposé un tube (3) ouvert en haut et en bas, de largeur adaptée au matériau photographique, à travers lequel le matériau photographique est transporté, l'ouverture inférieure plongeant dans le bain de traitement final et l'ouverture supérieure se trouvant au-dessus du niveau du liquide du bain de traitement final et le tube disposé du côté de la sortie étant relié au-dessus du niveau du liquide avec l'arrivée du bain de traitement final.
  2. Dispositif selon la revendication 1, caractérisé en ce que le tube contient au plus 1/5 du bain de traitement final.
  3. Dispositif selon la revendication 2, caractérisé en ce que le tube contient 1/10 à 1/100 du bain de traitement final.
  4. Dispositif selon la revendication 1, caractérisé en ce qu'un autre tube (2) de même forme est disposé du côté de l'introduction du matériau photographique, à travers lequel le matériau photographique est envoyé, le tube étant relié directement au trop-plein par un tube latéral (7) quelques mm au-dessous du niveau du liquide.
EP90115540A 1989-08-26 1990-08-14 Dispositif de traitement final à contre-courant Expired - Lifetime EP0415172B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3928331 1989-08-26
DE3928331A DE3928331A1 (de) 1989-08-26 1989-08-26 Gegenstromschlussbehandlungsvorrichtung

Publications (3)

Publication Number Publication Date
EP0415172A2 EP0415172A2 (fr) 1991-03-06
EP0415172A3 EP0415172A3 (en) 1991-12-11
EP0415172B1 true EP0415172B1 (fr) 1994-03-16

Family

ID=6387999

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90115540A Expired - Lifetime EP0415172B1 (fr) 1989-08-26 1990-08-14 Dispositif de traitement final à contre-courant

Country Status (3)

Country Link
EP (1) EP0415172B1 (fr)
JP (1) JP2916226B2 (fr)
DE (2) DE3928331A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4105917A1 (de) * 1991-02-26 1992-08-27 Agfa Gevaert Ag Verfahren zur verarbeitung fotografischer materialien
DE4114228A1 (de) * 1991-03-23 1992-09-24 Agfa Gevaert Ag Fluessigkeitsabstreifer fuer fotografisches material
DE4141192A1 (de) * 1991-12-04 1993-06-09 Agfa-Gevaert Ag, 5090 Leverkusen, De Fluessigkeitsabstreifer fuer fotografisches material
DE69328249D1 (de) * 1993-10-11 2000-05-04 Agfa Gevaert Nv Fotografisches Behandlungsgerät mit Reinigungsrollen
FR2806172B1 (fr) * 2000-03-07 2002-05-10 Eastman Kodak Co Procede et dispositif pour le traitement d'un film photographique inversible couleur
JP5594996B2 (ja) 2009-09-14 2014-09-24 三菱重工業株式会社 航空機の操縦システム

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH250672A (de) * 1943-10-28 1947-09-15 Diebold Inc Verfahren und Vorrichtung zur automatischen Behandlung eines Filmbandes.
DE3320787A1 (de) * 1983-06-09 1984-12-13 Agfa-Gevaert Ag, 5090 Leverkusen Waesserungseinrichtung fuer fotografische schichttraeger
JPS62216050A (ja) * 1986-02-20 1987-09-22 Fujitsu Ltd プログラム単位の実行ｃｐｕ時間測定処理方式

Also Published As

Publication number Publication date
EP0415172A3 (en) 1991-12-11
EP0415172A2 (fr) 1991-03-06
DE59004992D1 (de) 1994-04-21
DE3928331A1 (de) 1991-02-28
JPH0391743A (ja) 1991-04-17
JP2916226B2 (ja) 1999-07-05

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