EP0415172B1 - Counter-current final treatment apparatus - Google Patents

Counter-current final treatment apparatus 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
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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
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German (de)
French (fr)
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EP0415172A3 (en
EP0415172A2 (en
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
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Agfa Gevaert AG
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Publication date
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Publication of EP0415172A2 publication Critical patent/EP0415172A2/en
Publication of EP0415172A3 publication Critical patent/EP0415172A3/en
Application granted granted Critical
Publication of EP0415172B1 publication Critical patent/EP0415172B1/en
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    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03DAPPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
    • G03D3/00Liquid processing apparatus involving immersion; Washing apparatus involving immersion
    • G03D3/02Details of liquid circulation
    • G03D3/06Liquid supply; Liquid circulation outside tanks
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03DAPPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
    • G03D3/00Liquid processing apparatus involving immersion; Washing apparatus involving immersion
    • G03D3/02Details of liquid circulation

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

Description

Die Erfindung betrifft eine Vorrichtung gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to a device according to the preamble of patent claim 1.

Für die Behandlung von fotografischem Material in einer kontinuierlich wirkenden Transporteinrichtung sind Wässerungseinrichtungen mit einem oder mehreren Wässerungsbehältern bekannt, die von dem fotografischen Material nacheinander durchlaufen werden. Dabei wird der regelmäßig notwendige Zulauf von Frischwasser in den letzten der Wässerungsbehälter eingeleitet, so daß dort die geringste Konzentration an den aus der fotografischen Schicht herauszulösenden Chemikalien der Behandlungsbäder vorhanden ist. Der Überlauf des letzten Wässerungsbehälters wird dann in die vorher liegenden Wässerungsbehälter geführt, so daß entgegen der Durchlaufrichtung des fotografischen Materials die Konzentration an Chemikalien ansteigt. Dieses Prinzip ist sowohl aus der chemischen Verfahrenstechnik als auch von Wärmetauschern als Gegenstromprinzip bekannt. Dabei sind die Behandlungsergebnisse umso besser, je größer die Anzahl der aufeinander folgenden Behandlungsstufen ist. Der Aufwand für eine solche Behandlungseinrichtung steigt jedoch auch mit der Anzahl der Behälter.For the treatment of photographic material in a continuously acting transport device, 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.

Eine solche Vorrichtung ist beispielsweise aus DE-A-33 20 787 bekannt, deren Wirkung dadurch gesteigert wird, daß auf der Einlaufseite des fotografischen Materials unter diesem ein sich über die Tankbreite erstreckendes Überlaufwehr mit Ablaufrinne angeordnet ist, sowie ein erstes, sich über die Tankbreite erstreckendes Walzenpaar mit gegenüber dem Wasserspiegel geneigter Achsenebene, wobei zwischen der Ablaufrinne und der dieser benachbarten Walze des Walzenpaares ein im Vergleich zur Tanklänge schmaler Spalt verbleibt, daß im unteren Teil des Tanks ein sich über die Tankbreite erstreckendes, walzenparalleles Sprührohr für Wasserzufuhr mit im wesentlichen nach oben gerichteten Austrittsöffnungen so angeordnet ist, daß der aus dem Sprührohr austretende Strahl auf den Spalt zwischen Ablaufrinne und Walze gerichtet ist.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.

Diese Vorrichtung kann auch in einem wässerungsfreien Verarbeitungsverfahren, bei dem die Schlußwässerung durch Behandlung des Materials mit einer Stabilisierlösung ersetzt ist, verwendet werden, allerdings ist die Wirkungssteigerung gegenüber solchen Vorrichtungen, die das Sprührohr nicht aufweisen, nicht so erheblich, daß die Zahl der Tanks für die Stabilisatorbehandlung reduziert werden könnte.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.

In einem wässerungsfreien Verarbeitungsverfahren mit Stabilisatorbehandlung als Schlußbad werden z.B. üblicherweise 4 Tanks für die Stabilisatorbehandlung als Gegenstromkaskade angeordnet, die mit einer Regenerierquote von 248 ml/m² und einer Verweilzeit von 22,5 Sek/Tank betrieben werden und eine Verschleppungsrate von ca. 80 ml/m² berücksichtigen.In a water-free processing method with stabilizer treatment as a final bath, e.g. Usually 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.

Für die Reduzierung auf nur noch 3 Tanks bei gleichem Materialdurchsatz und gleichem angestrebtem Verdünnungseffekt kommen nach bisheriger Kenntnis folgende Maßnahmen in Frage: Erhöhung der Regenierquote auf wenigstens 400 ml/m² , was unerwünscht ist, da es zu einem erheblich gesteigerten Anfall an gebrauchtem Stabilisierbad führt.According to previous knowledge, 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.

Aufgabe der Erfindung ist, eine Schlußbehandlungsvorrichtung zur Verfügung zu stellen, die bei gleicher Wirksamkeit wie bisher mit einer geringeren Anzahl an Behandlungstanks auskommt.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.

Diese Aufgabe wird durch die im Anspruch 1 beschriebene Erfindung gelöst.This object is achieved by the invention described in claim 1.

Das Schlußbehandlungsbad kann eine Wässerung oder ein Stabilisierbad sein.The final treatment bath can be a watering or a stabilizing bath.

Vorzugsweise befindet sich höchstens 1/5, insbesondere 1/10 bis 1/100, des Schlußbehandlungsbades in dem Rohr. Das Rohr taucht wenigstens so weit in den Tank ein, wie es 50 % der Füllhöhe des Tankes entspricht. Die maximale Eintauchtiefe des Rohres wird durch das Ausmaß der technischen Installationen (Umlenkrollen etc.) im Tank begrenzt. Um unter diesen Umständen auf die jeweils gewünschte, im Rohr befindliche Schlußbadmenge zu kommen, empfiehlt es sich, die leichte Weite des Rohres bei üblichen Tankgrößen auf einen Wert von etwa 2 bis 20 mm einzustellen. Die Breite des Rohres ist durch die Breite des fotografischen Materials vorgegeben.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. In order to achieve the desired final bath quantity in the pipe under these circumstances, it is advisable to set the light width of the pipe to a value of approximately 2 to 20 mm for conventional tank sizes. The width of the tube is determined by the width of the photographic material.

In einer bevorzugten Ausführungsform der Erfindung wird im Bereich der Einlaufseite des fotografischen Materials ein weiteres, in gleicher Weise gestaltetes Rohr angebracht, durch das das fotografische Material geführt wird, wobei das Rohr wenige mm unterhalb des Flüssigkeitsnieveaus durch ein seitlich angebrachtes Rohr direkt mit dem Ablauf verbunden ist.In a preferred embodiment of the invention, in the area of the inlet side 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.

In Fig. 1 ist eine Ausführungsform der Erfindung mit ein- und auslaufseitem Rohr skizziert.In Fig. 1 an embodiment of the invention is sketched with an inlet and outlet-side tube.

Im Tank 1 befinden sich einlaufseitig und auslaufseitig die Rohre 2 und 3 durch die das fotografische Material 4 in Pfeilrichtung über Umlenkrollen 5 transportiert wird. Frisches Nachbehandlungsbad wird über die Leitung 6 zugeführt. Der Ablauf aus dem Einlaufrohr ist mit 7 bezeichnet.In the tank 1 there are pipes 2 and 3 on the inlet and outlet sides through which the photographic material 4 is transported in the direction of the arrow via deflection rollers 5. Fresh aftertreatment bath is supplied via line 6. The drain from the inlet pipe is designated 7.

Beispiel 1example 1

Ein handelsübliches Colorpapier wird wie folgt im handelsüblichen Prozeß entwickelt. Bad Zeit Regenerierquote Entwickler 45′ 240 ml/m² Bleichfixierbad 45′ 160 ml/m² Stabilisator 30′ 200 ml/m² Stabilisator 30′ 200 ml/m² Stabilisator 30′ 200 ml/m² 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

Das Tankvolumen der Stabilisatortanks beträgt ca. 6 Liter. Die Tanks sind nicht in Kaskade geschaltet.The tank volume of the stabilizer tanks is approx. 6 liters. The tanks are not cascaded.

Die wesentlichen Bestandteile des verwendeten Bleichfixierbades sind Ammoniumthiosulfat 100 g/l Eisenammonium-EDTA 50 g/l Natriumsulfit 20 g/l 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

Während der Verarbeitung von ca. 100 m² Colorpapier wird die Konzentration des Bleichfixierbades durch Zugabe eines geeigneten Regenerators konstant gehalten.During the processing of approx. 100 m² color paper, the concentration of the bleach-fix bath is kept constant by adding a suitable regenerator.

Anschließend wird die Konzentration von Ammoniumthiosulfat und Eisenammonium-EDTA im ersten Tank nach dem Bleichfixierbad analytisch bestimmt: Ammoniumthiosulfat 19 g/l Eisenammonium-EDTA 9,1 g/l 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

Ebenfalls bestimmt werden die Konzentrationen im zweiten Tank nach dem Bleichfixierbad: Ammoniumthiosulfat 4,6 g/l Eisenammonium-EDTA 1,9 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

Beispiel 2 (erfindungsgemäß) Example 2

Am Auslaufteil des ersten Tanks nach dem Bleichfixierbad wird das erfindungsgemäße Rohr installiert: oberes Ende über Niveau, unteres Ende durch Abstreiferlippen verengt; Länge 20 cm, lichte Weite 15 mm.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.

Durch dieses Rohr, in dem sich etwa 5 % des Badvolumens befinden, läuft das Colorpapier ehe es den Tank 1 nach dem Bleichfixierbad verläßt und in den Tank 2 nach dem Bleichfixierbad einläuft.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.

Die Zugabe des Regenerators erfolgt in die obere Öffnung des Rohres, halbkontinuierlich mit einer Hubkolbenpumpe mit 200 ml/m².The regenerator is added to the upper opening of the tube, semi-continuously with a reciprocating pump with 200 ml / m².

Nach Verarbeitung von 100 m² Colorpapier werden die Konzentrationen im Tank 2 nach dem Bleichfixierbad analytisch bestimmt: Ammoniumthiosulfat 1,0 g Eisenammonium-EDTA 0,4 g After processing 100 m² of color paper, the concentrations in tank 2 are determined analytically after the bleach-fix bath: Ammonium thiosulfate 1.0 g Iron ammonium EDTA 0.4 g

Die sich einstellende Gleichgewichtskonzentrationen im Tank 2 nach dem Bleichfixierbad verhalten sich wie 1:0,2, d.h. das erfindungsgemäße System ist 5 x wirkungsvoller als das herkömmliche Verfahren.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.

Claims (4)

  1. Countercurrent final treatment apparatus for continuous photographic material, consisting of at least one final treatment tank (1) with an inlet for the final treatment bath and an outlet for the chemical-rich final treatment bath, as well as driven rollers (5) for conveying the photographic material through the tank in a U-shaped path, characterised in that on the outlet side of the photographic material a tube (3) is mounted, which is open at the top and bottom and corresponds to the width of the photographic material, and through which the photographic material is conveyed, the lower aperture being immersed in the final treatment bath and the upper aperture being located above the liquid level of the final treatment bath, and the tube mounted on the outlet side being connected to the inlet of the final treatment bath above the liquid level.
  2. Apparatus according to claim 1, characterised in that at most 1/5 of the final treatment bath is present inside the tube.
  3. Apparatus according to claim 2, characterised in that 1/10 to 1/100 of the final treatment bath is present inside the tube.
  4. Apparatus according to claim 1, characterised in that a further, similarly formed tube (2), through which the photographic material passes, is mounted in the region of the inlet side of the photographic material, and the tube is connected to the outlet a few millimetres below the liquid level by a laterally mounted tube (7).
EP90115540A 1989-08-26 1990-08-14 Counter-current final treatment apparatus Expired - Lifetime EP0415172B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3928331A DE3928331A1 (en) 1989-08-26 1989-08-26 COUNTER-CIRCUIT TREATMENT DEVICE
DE3928331 1989-08-26

Publications (3)

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

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Application Number Title Priority Date Filing Date
EP90115540A Expired - Lifetime EP0415172B1 (en) 1989-08-26 1990-08-14 Counter-current final treatment apparatus

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EP (1) EP0415172B1 (en)
JP (1) JP2916226B2 (en)
DE (2) DE3928331A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4105917A1 (en) * 1991-02-26 1992-08-27 Agfa Gevaert Ag METHOD FOR PROCESSING PHOTOGRAPHIC MATERIALS
DE4114228A1 (en) * 1991-03-23 1992-09-24 Agfa Gevaert Ag FLUID SCREENERS FOR PHOTOGRAPHIC MATERIALS
DE4141192A1 (en) * 1991-12-04 1993-06-09 Agfa-Gevaert Ag, 5090 Leverkusen, De FLUID SCREENERS FOR PHOTOGRAPHIC MATERIALS
EP0647882B1 (en) * 1993-10-11 2000-03-29 Agfa-Gevaert N.V. Photographic processing station with cleaning rollers
FR2806172B1 (en) * 2000-03-07 2002-05-10 Eastman Kodak Co METHOD AND DEVICE FOR THE PROCESSING OF A COLOR INVERSIBLE PHOTOGRAPHIC FILM
JP5594996B2 (en) 2009-09-14 2014-09-24 三菱重工業株式会社 Aircraft control system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH250672A (en) * 1943-10-28 1947-09-15 Diebold Inc Method and device for the automatic treatment of a film strip.
DE3320787A1 (en) * 1983-06-09 1984-12-13 Agfa-Gevaert Ag, 5090 Leverkusen Washing device for photographic bases
JPS62216050A (en) * 1986-02-20 1987-09-22 Fujitsu Ltd Measurement processing system for executing cpu time for program unit

Also Published As

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

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