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EP0218170B1 - Device for the treatment of a photographic film by liquid means - Google Patents

Device for the treatment of a photographic film by liquid means Download PDF

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Publication number
EP0218170B1
EP0218170B1 EP86113392A EP86113392A EP0218170B1 EP 0218170 B1 EP0218170 B1 EP 0218170B1 EP 86113392 A EP86113392 A EP 86113392A EP 86113392 A EP86113392 A EP 86113392A EP 0218170 B1 EP0218170 B1 EP 0218170B1
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EP
European Patent Office
Prior art keywords
rolls
feed
squeeze
roll
treatment liquid
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
Application number
EP86113392A
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German (de)
French (fr)
Other versions
EP0218170A3 (en
EP0218170A2 (en
Inventor
Jürgen Dipl.-Ing. Müller
Francois P. Loots
Remi Dr. Vanhorebeek
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Agfa Gevaert AG
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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
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Publication of EP0218170A2 publication Critical patent/EP0218170A2/en
Publication of EP0218170A3 publication Critical patent/EP0218170A3/en
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Publication of EP0218170B1 publication Critical patent/EP0218170B1/en
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    • 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
    • G03D3/08—Liquid processing apparatus involving immersion; Washing apparatus involving immersion having progressive mechanical movement of exposed material
    • G03D3/13—Liquid processing apparatus involving immersion; Washing apparatus involving immersion having progressive mechanical movement of exposed material for long films or prints in the shape of strips, e.g. fed by roller assembly
    • G03D3/132—Liquid processing apparatus involving immersion; Washing apparatus involving immersion having progressive mechanical movement of exposed material for long films or prints in the shape of strips, e.g. fed by roller assembly fed by roller assembly

Definitions

  • the invention relates to a device for the wet treatment of photographic substrates, in which a substrate is guided between a pair of insertion rollers and a squeeze roller in a trough-like container between the rollers of a pair of feed rollers and wetted with treatment liquid.
  • a similar device is known from DE-OS 32 30175.
  • several pairs of transport rollers are provided which define a transport plane for the layer support, the liquid level being above this transport plane.
  • the layer support is thus drawn through the bath, the rollers only serving as transport rollers and not as rinsing or squeezing rollers. It is also not clear how the relatively small amount of treatment liquid in the device could be constantly renewed or regenerated.
  • the invention is based on the object of designing a device of the type mentioned in such a way that with a small volume of treatment liquid in the device and greatly reduced oxidation possibilities for the treatment liquid, a uniform distribution of the treatment liquid on the wash-up rollers and a constant exchange of the treatment liquid are possible.
  • a set-up and collecting trough for a treatment device and a storage container for the treatment liquid and the lines provided between the two parts are designated by 1.
  • two tubs could also be provided for the treatment device and the storage container.
  • the treatment device 2 and the storage container 3 as well as the lines designed as rigid tubes or elastic hoses are mounted in a known manner, for example set up or suspended or fixed to the tub walls with clamps.
  • the treatment device 2 has three roller pairs 6a, 6b, 7a, 7b, 8a, 8b arranged one behind the other in the transport direction 4 of a layer support 5, of which the first roller pair 6a, 6b is an insertion roller pair, the second roller pair 7a, 7b is a pre-wash roller pair for wetting the layer support 5 and the third pair of rollers 8a, 8b represent a pair of squeeze rollers.
  • the pre-wash roller pair 7a, 7b is arranged at the lowest point, so that the contact plane of the two pre-wash rollers 7a, 7b defining the layer support web forms the lowest region of the layer support web.
  • the respective lower rollers 6a, 7a, 8a are arranged in a trough-like container 9, the bulges 9a, 9b and 9c for the rollers 6a, 7a, 8a and in between inclined surfaces 9d and 9e as guide surfaces for a layer support 5 between the rollers 6a, 6b , 6c.
  • the bulges 9a and 9c for the lower insertion roller 6a and the lower squeeze roller 8a can only be approximately adapted to the shape of the rollers 6a and 8a at a greater distance therefrom.
  • the bulge 9b for the lower feed roller 7a hugs its shape like a cage.
  • the guide surfaces 9d, 9e each run obliquely downwards from the upper, inner end of the bulge 9a or 9c to the upper edge of the bulge 9b.
  • an upper housing part 10 On the tub-like container 9, an upper housing part 10 is placed, which has bulges 10a, 10b and 10c for the rollers 6b, 7b, 8b and between them to the guide surfaces 9d, 9e approximately parallel guide surfaces 10d, 10e.
  • the bulges 10a, 10b, 10c can very closely follow the rollers 6b, 7b, 7c. All bulges 9a, 9b, 9c, 10a, 10b, 10c are open to the layer carrier web.
  • slots 11, 12 are provided on the walls perpendicular to the direction of transport 4 for inserting and dispensing the layer supports 5.
  • a pre-distribution channel 9f or 10f is formed in the apex line of each of the bulges 9b, 10b, which channel extends from the central plane 14 in the transport direction 4 tapered on both sides in the direction of the substrate width, cf. 2.
  • the treatment liquid 13 is pumped into these pre-distribution channels 9f, 10f from the storage container 3 by means of a pump 15 via a main feed line 16, which then branches into two feed lines 16a, 16b.
  • Openings of the feed lines 16a, 16b in the pre-distribution channels 9f, 10f lie in the region of the central plane 14, preferably approximately perpendicular to the layer carrier web.
  • the supply lines could also open into the pre-distribution channels 9f, 10f parallel or inclined to the layer carrier web. It would also be possible to provide the feed lines at one end of the pre-distributor channel, in which case the pre-distributor channels would have to taper from the mouth to their other end.
  • the treatment liquid 13 By pumping the treatment liquid 13 into the pre-distribution channels 9f, 10f, it is initially distributed evenly over the channel length and then correspondingly rinses the pre-wash rollers 7a, 7b from below or from above, so that the pre-wash rollers in turn ensure uniform wetting of the layer support 5 effect across its width. So that the treatment liquid 13 supplied to the layer support 5 and used during its treatment with regard to its composition is easily renewed can be provided on the deepest areas of the bulges 9a, 9c for the other two lower rollers 6a, 8a drainage nozzles, which open into return lines 17a, 17b, which converge into a common line 17.
  • the return line 17 leads into the storage container 3, namely above its normal liquid level.
  • the used treatment liquid flowing back under the pressure of the pump 15 then mixes with the fresh treatment liquid, and when the level drops, regenerated liquid can be supplied via a further inlet 3a.
  • the control of the regenerative feed can be controlled by level sensors 18a, 18b.
  • a heater 19 can also be provided in the storage container 3, which can be controlled by thermostats which can be arranged both in the container 3 and in the lines 16 or in the trough-shaped container 9.
  • the development is not carried out as a mere rinsing process, but that the substrate 5 is moved through a dipping bath for a small part of its way, with the rotating transport rollers 7a, 7b ensuring uniform washing and wetting is additionally promoted.
  • FIG. 1 this is achieved in that so much treatment liquid is pumped in that liquid accumulates in the tub-like container 9 up to a certain level.
  • the upper edge 9g of the container 9 is higher than the lower edges of the upper bulge 10b for the upper wash-on roller 7b, so that the latter, when the container 9 is filled, simply because of its position, even in the liquid present in the tub-like container 9 immersed.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photographic Processing Devices Using Wet Methods (AREA)

Description

Die Erfindung betrifft eine Vorrichtung zur Naßbehandlung fotografischer Schichtträger, in der ein Schichtträger zwischen einem Einführ- und einem Abquetschwalzenpaar in einem wannenartigen Behälter zwischen den Walzen eines Anspülwalzenpaares geführt und mit Behandlungsflüssigkeit benetzt wird.The invention relates to a device for the wet treatment of photographic substrates, in which a substrate is guided between a pair of insertion rollers and a squeeze roller in a trough-like container between the rollers of a pair of feed rollers and wetted with treatment liquid.

Eine ähnliche Vorrichtung ist durch die DE-OS 32 30175 bekannt geworden. Dabei sind jedoch mehrere Transportwalzenpaare vorgesehen, die eine Transportebene für den Schichtträger definieren, wobei das Flüssigkeitsniveau über dieser Transportebene liegt. Der Schichtträger wird also durch das Bad gezogen, wobei die Walzen lediglich die Funktion von Transportwalzen und nicht von Anspül- bzw. Abquetschwalzen haben. Auch ist nicht erkennbar, wie die relativ geringe Menge an Behandlungsflüssigkeit in der Vorrichtung ständig erneuert bzw. regeneriert werden könnte.A similar device is known from DE-OS 32 30175. However, several pairs of transport rollers are provided which define a transport plane for the layer support, the liquid level being above this transport plane. The layer support is thus drawn through the bath, the rollers only serving as transport rollers and not as rinsing or squeezing rollers. It is also not clear how the relatively small amount of treatment liquid in the device could be constantly renewed or regenerated.

Der Erfindung liegt demgegenüber die Aufgabe zugrunde, eine Vorrichtung der eingangs genannten Art so auszubilden, daß bei geringem Volumen an Behandlungsflüssigkeit in der Vorrichtung und stark verminderten Oxydationsmöglichkeiten für die Behandlungsflüssigkeit eine gleichmäßige Verteilung der Behandlungsflüssigkeit an den Anspülwalzen und ein ständiger Austausch der Behandlungsflüssigkeit möglich sind.The invention is based on the object of designing a device of the type mentioned in such a way that with a small volume of treatment liquid in the device and greatly reduced oxidation possibilities for the treatment liquid, a uniform distribution of the treatment liquid on the wash-up rollers and a constant exchange of the treatment liquid are possible.

Diese Aufgabe wird erfindungsgemäß gelöst durch die Merkmale des Hauptanspruchs. Weitere vorteilhafte Merkmale der Erfindung sind den Unteransprüchen entnehmbar.This object is achieved by the features of the main claim. Further advantageous features of the invention can be found in the subclaims.

Die Erfindung wird anhand von Zeichnungen näher erläutert. Es zeigen

  • Fig. 1 eine teilweise geschnittene Ansicht einer erfindungsgemäßen Vorrichtung gemäß der Schnittlinie I-I der Figur 2,
  • Fig. 2 einen Schnitt durch die Teile der Vorrichtung gemäß der Schnittlinie 11-11 der Figur 1.
The invention is explained in more detail with reference to drawings. Show it
  • 1 is a partially sectioned view of a device according to the invention along the section line II of Figure 2,
  • 2 shows a section through the parts of the device according to section line 11-11 of FIG. 1.

In Figur 1 ist eine Aufstell- und Auffangwanne für eine Behandlungsvorrichtung und einen Vorratsbehälter für die Behandlungsflüssigkeit sowie die zwischen beiden Teilen vorgesehenen Leitungen mit 1 bezeichnet. Statt einer Wanne 1 könnten auch zwei Wannen für die Behandlungsvorrichtung und den Vorratsbehälter vorgesehen sein. In der oder den Wannen 1 sind die Behandlungsvorrichtung 2 und der Vorratsbehälter 3 sowie die als starre Rohre oder elastische Schläuche ausgebildeten Leitungen auf bekannte Weise montiert, beispielsweise aufgestellt oder eingehängt oder mit Schellen an den Wannenwänden festgelegt.In FIG. 1, a set-up and collecting trough for a treatment device and a storage container for the treatment liquid and the lines provided between the two parts are designated by 1. Instead of a tub 1, two tubs could also be provided for the treatment device and the storage container. In the tub or tubs 1, the treatment device 2 and the storage container 3 as well as the lines designed as rigid tubes or elastic hoses are mounted in a known manner, for example set up or suspended or fixed to the tub walls with clamps.

Die Behandlungsvorrichtung 2 weist drei in Transportrichtung 4 eines Schichtträgers 5 hintereinander angeordnete Walzenpaare 6a, 6b, 7a, 7b, 8a, 8b auf, von denen das erste Walzenpaar 6a, 6b ein Einführwalzenpaar, das zweite Walzenpaar 7a, 7b ein Anspülwalzenpaar zur Benetzung des Schichtträgers 5 und das dritte Walzenpaar 8a, 8b ein Abquetschwalzenpaar darstellt. Entsprechend seiner Funktion ist das Anspülwalzenpaar 7a, 7b am tiefsten angeordnet, so daß die die Schichtträgerbahn definierende Berührungsebene der beiden Anspülwalzen 7a, 7b den tiefstgelegenen Bereich der Schichtträgerbahn bildet. Die jeweils unteren Walzen 6a, 7a, 8a sind in einem wannenähnlichen Behälter 9 angeordnet, der Ausbuchtungen 9a, 9b und 9c für die Walzen 6a, 7a, 8a und dazwischen Schrägflächen 9d und 9e als Leitflächen für einen Schichtträger 5 zwischen den Walzen 6a, 6b, 6c aufweist. Die Ausbuchtungen 9a und 9c für die untere Einführwalze 6a und die untere Abquetschwalze 8a können der Form der Walzen 6a bzw. 8a mit größerem Abstand hiervon nur ungefähr angepaßt sein. Dagegen schmiegt sich die Ausbuchtung 9b für die untere Anspülwalze 7a deren Form käfigartig an. Die Leitflächen 9d, 9e verlaufen jeweils vom oberen, inneren Ende der Ausbuchtung 9a bzw. 9c schräg nach abwärts zum oberen Rand der Ausbuchtung 9b. Auf den wannenartigen Behälter 9 ist ein oberes Gehäuseteil 10 aufgesetzt, das Ausbuchtungen 10a, 10b und 10c für die Walzen 6b, 7b, 8b und dazwischen zu den Leitflächen 9d, 9e etwa parallel verlaufende Leitflächen 10d, 10e aufweist. Die Ausbuchtungen 10a, 10b, 10c, können sich den Walzen 6b, 7b, 7c sehr eng anschließen. Alle Ausbuchtungen 9a, 9b, 9c, 10a, 10b, 10c sind zur Schichtträgerbahn hin offen. Zwischen dem wannenartigen Behälter 9 und dem oberen Gehäuseteil 10 sind an den zur Transportrichtung 4 senkrechten Wänden Schlitze 11, 12 zum Einführen und Ausgeben der Schichtträger 5 vorgesehen.The treatment device 2 has three roller pairs 6a, 6b, 7a, 7b, 8a, 8b arranged one behind the other in the transport direction 4 of a layer support 5, of which the first roller pair 6a, 6b is an insertion roller pair, the second roller pair 7a, 7b is a pre-wash roller pair for wetting the layer support 5 and the third pair of rollers 8a, 8b represent a pair of squeeze rollers. According to its function, the pre-wash roller pair 7a, 7b is arranged at the lowest point, so that the contact plane of the two pre-wash rollers 7a, 7b defining the layer support web forms the lowest region of the layer support web. The respective lower rollers 6a, 7a, 8a are arranged in a trough-like container 9, the bulges 9a, 9b and 9c for the rollers 6a, 7a, 8a and in between inclined surfaces 9d and 9e as guide surfaces for a layer support 5 between the rollers 6a, 6b , 6c. The bulges 9a and 9c for the lower insertion roller 6a and the lower squeeze roller 8a can only be approximately adapted to the shape of the rollers 6a and 8a at a greater distance therefrom. In contrast, the bulge 9b for the lower feed roller 7a hugs its shape like a cage. The guide surfaces 9d, 9e each run obliquely downwards from the upper, inner end of the bulge 9a or 9c to the upper edge of the bulge 9b. On the tub-like container 9, an upper housing part 10 is placed, which has bulges 10a, 10b and 10c for the rollers 6b, 7b, 8b and between them to the guide surfaces 9d, 9e approximately parallel guide surfaces 10d, 10e. The bulges 10a, 10b, 10c, can very closely follow the rollers 6b, 7b, 7c. All bulges 9a, 9b, 9c, 10a, 10b, 10c are open to the layer carrier web. Between the trough-like container 9 and the upper housing part 10, slots 11, 12 are provided on the walls perpendicular to the direction of transport 4 for inserting and dispensing the layer supports 5.

Damit nun das Anspülwalzenpaar 7a, 7b stets mit frischer Behandlungsflüssigkeit 13 gleichmäßig bespült wird und so einen Schichtträger 5 gleichmäßig benetzt, ist im Bereich der Scheitellinie jeder der Ausbuchtungen 9b, 10b ein Vorverteilerkanal 9f bzw. 10f angeformt, der sich von der Mittelebene 14 in Transportrichtung 4 nach beiden Seiten in Richtung der Schichtträgerbreite verjüngt, vgl. Fig. 2. In diese Vorverteilerkanäle 9f, 10f wird aus dem Vorratsbehälter 3 mittels einer Pumpe 15 über eine Hauptzuleitung 16, die sich dann in zwei Zuleitungen 16a, 16b verzweigt, die Behandlungsflüssigkeit 13 gepumpt. Einmündungen der Zuleitungen 16a, 16b in die Vorverteilerkanäle 9f, 10f liegen im Bereich der Mittelebene 14, vorzugsweise etwa senkrecht zur Schichtträgerbahn. Die Zuleitungen könnten aber auch parallel oder geneigt zur Schichtträgerbahn in die Vorverteilerkanäle 9f, 10f einmünden. Außerdem wäre es möglich, die Zuleitungen jeweils an einem Ende des Vorverteilerkanals vorzusehen, wobei dann die Vorverteilerkanäle sich von der Einmündung zu ihrem anderen Ende hin verjüngen müßten.So that the pre-wash roller pair 7a, 7b is always uniformly rinsed with fresh treatment liquid 13 and thus uniformly wets a layer support 5, a pre-distribution channel 9f or 10f is formed in the apex line of each of the bulges 9b, 10b, which channel extends from the central plane 14 in the transport direction 4 tapered on both sides in the direction of the substrate width, cf. 2. The treatment liquid 13 is pumped into these pre-distribution channels 9f, 10f from the storage container 3 by means of a pump 15 via a main feed line 16, which then branches into two feed lines 16a, 16b. Openings of the feed lines 16a, 16b in the pre-distribution channels 9f, 10f lie in the region of the central plane 14, preferably approximately perpendicular to the layer carrier web. However, the supply lines could also open into the pre-distribution channels 9f, 10f parallel or inclined to the layer carrier web. It would also be possible to provide the feed lines at one end of the pre-distributor channel, in which case the pre-distributor channels would have to taper from the mouth to their other end.

Durch das Einpumpen der Behandlungsflüssigkeit 13 in die Vorverteilerkanäle 9f, 10f verteilt sich diese zunächst einmal gleichmäßig über die Kanallänge und bespült dann dementsprechend gleichmäßig die Anspülwalzen 7a, 7b von unten bzw. von oben, so daß die Anspülwalzen ihrerseits wieder eine gleichmäßige Benetzung des Schichtträgers 5 über dessen Breite bewirken. Damit die dem Schichtträger 5 zugeführte und bei dessen Behandlung bezüglich ihrer Zusammensetzung verbrauchte Behandlungsflüssigkeit 13 problemlos erneuert werden kann, sind an den tiefstgelegenen Bereichen der Ausbuchtungen 9a, 9c für die beiden anderen unteren Walzen 6a, 8a Abflußstutzen vorgesehen, die in Rückleitungen 17a, 17b einmünden, welche in eine gemeinsame Leitung 17 zusammenlaufen. Die Rückleitung 17 führt in den Vorratsbehälter 3 und zwar oberhalb von dessen normalem Flüssigkeitsniveau. Die unter dem Druck der Pumpe 15 zurückfließende, verbrauchte Behandlungsflüssigkeit vermischt sich dann mit der frischen Behandlungsflüssigkeit, wobei bei Absinken des Niveaus Regeneratflüssigkeit über einen weiteren Zulauf 3a zugeführt werden kann. Die Steuerung des Regeneratzulaufes kann durch Niveaufühler 18a, 18b steuerbar sein. Im Vorratsbehälter 3 kann auch eine Heizung 19 vorgesehen sein, die durch Thermostaten steuerbar sein kann, die sowohl im Behälter 3 als auch in den Leitungen 16 oder im wannenförmigen Behälter 9 angeordnet sein können.By pumping the treatment liquid 13 into the pre-distribution channels 9f, 10f, it is initially distributed evenly over the channel length and then correspondingly rinses the pre-wash rollers 7a, 7b from below or from above, so that the pre-wash rollers in turn ensure uniform wetting of the layer support 5 effect across its width. So that the treatment liquid 13 supplied to the layer support 5 and used during its treatment with regard to its composition is easily renewed can be provided on the deepest areas of the bulges 9a, 9c for the other two lower rollers 6a, 8a drainage nozzles, which open into return lines 17a, 17b, which converge into a common line 17. The return line 17 leads into the storage container 3, namely above its normal liquid level. The used treatment liquid flowing back under the pressure of the pump 15 then mixes with the fresh treatment liquid, and when the level drops, regenerated liquid can be supplied via a further inlet 3a. The control of the regenerative feed can be controlled by level sensors 18a, 18b. A heater 19 can also be provided in the storage container 3, which can be controlled by thermostats which can be arranged both in the container 3 and in the lines 16 or in the trough-shaped container 9.

Für eine Reihe von Schichtträgerarten oder Entwicklungsverfahren kann es zweckmäßig sein, daß die Entwicklung nicht als reiner Anspülprozeß durchgeführt wird, sondern der Schichtträger 5 auf einem kleinen Teil seines Weges durch ein Tauchbad bewegt wird, wobei durch die sich drehenden Transportwalzen 7a, 7b eine gleichmäßige Anspülung und Benetzung zusätzlich gefördert wird. Dies wird gemäß Figur 1 dadurch erreicht, daß so viel Behandlungsflüssigkeit zugepumpt wird, daß sich in dem wannenartigen Behälter 9 Flüssigkeit bis zu einem bestimmten Niveau ansammelt. Hierzu ist es erforderlich, daß der obere Rand 9g des Behälters 9 höher liegt als die Unterkanten der oberen Ausbuchtung 10b für die obere Anspülwalze 7b, so daß letztere bei Füllung des Behälters 9 allein schon durch ihre Lage noch in die im wannenartigen Behälter 9 vorhandene Flüssigkeit eintaucht. In diesem Falle kann es zweckmäßig sein, in den Abflußleitungen 17a, 17b Ventile vorzusehen, die automatisch geöffnet werden, wenn im Behälter 9 das erwünschte Flüssigkeitsniveau überschritten wird. Dieses Flüssigkeitsniveau sollte dabei jedenfalls unter den Unterkanten des Zu- bzw. Ausführschlitzes 11 bzw. 12 liegen.For a number of types of substrates or development processes, it may be expedient that the development is not carried out as a mere rinsing process, but that the substrate 5 is moved through a dipping bath for a small part of its way, with the rotating transport rollers 7a, 7b ensuring uniform washing and wetting is additionally promoted. According to FIG. 1, this is achieved in that so much treatment liquid is pumped in that liquid accumulates in the tub-like container 9 up to a certain level. For this purpose, it is necessary that the upper edge 9g of the container 9 is higher than the lower edges of the upper bulge 10b for the upper wash-on roller 7b, so that the latter, when the container 9 is filled, simply because of its position, even in the liquid present in the tub-like container 9 immersed. In this case, it may be expedient to provide valves in the drain lines 17a, 17b which are opened automatically when the desired liquid level in the container 9 is exceeded. In any case, this liquid level should be below the lower edges of the feed or discharge slot 11 or 12.

Der Einfachheit halber ist in den Figuren nur ein mögliches Ausführungsbeispiel nach der Erfindung gezeigt. Grundsätzlich wäre es möglich, die Anspülwalzen 7a, 7b mit ihren Käfigen 9b, 10b und deren Vorverteilerkanälen 9f, 10f als Entwicklerbaueinheit auszubilden und die Einführ- und Abquetschwalzen hiervon getrennt anzuordnen. In diesem Falle könnten die Einführ- und die Abquetschwalzen u.U. auch höhengleich mit den Anspülwalzen und ggf. in eigenen kleinen, getrennt aufstellbaren Käfigen gelagert sein. Lagerung und Antrieb sämtlicher Walzenpaare kann auf irgendeine bekannte Weise erfolgen, wie dies in Figur 2 angedeutet ist.For the sake of simplicity, only one possible exemplary embodiment according to the invention is shown in the figures. In principle, it would be possible to design the wash-on rollers 7a, 7b with their cages 9b, 10b and their pre-distributor channels 9f, 10f as a developer unit and to arrange the insertion and squeeze rollers separately therefrom. In this case, the insertion and squeeze rollers could possibly can also be stored at the same level as the wash-up rollers and, if necessary, in their own small, separately installed cages. All pairs of rollers can be stored and driven in any known manner, as is indicated in FIG. 2.

Claims (12)

1. Apparatus for the wet treatment of photographic film carriers in which a film carrier is conveyed between a feed-roll pair and a squeeze-roll pair in a vat-like container between the rolls of an application-roll pair and is wetted with treatment liquid, characterized in that the rolls (7a, 7b) of the application-roll pair (7a, 7b) are arranged in housing cages (9b, 10b) which are open with respect to the path of the film carrier (5), in that there is a predistributor channel (10f; 9f) upstream of each housing cage (9b, 10b) on the side facing away from the vat above or below the application rolls (7b; 7a) respectively, and in that the treatment liquid (13) can be fed via an upper or lower feed pipe (16b; 16a) respectively to the respective predistributor channel (10f; 9f) and through the latter to the respective application roll (7b; 7a).
2. Apparatus according to claim 1, characterized in that each of the predistributor channels (9f, 10f) extends over the entire width of the apparatus or over the maximum width of the film carrier and its cross-section tapers from the longitudinal centre plane of the apparatus towards the outside.
3. Apparatus according to one of the claims 1 or 2, characterized in that the predistributor channels (9f, 10f) roughly have the shape of half truncated cones.
4. Apparatus according to one of the preceding claims, characterized in that the feed pipes (16b; 16a) open into the predistributor channels (10f; 9f) roughly in the highest-placed or lowest-placed, respectively, central region of these.
5. Apparatus according to one of the preceding claims, characterized in that adjoining the housing cages (9b, 10b) in the transport direction (4) of the film carrier (5) are guide surfaces (9d, 9e; 10d, 10e) for the latter on both sides, which guide surfaces extend up to the feed-rolls or squeeze-rolls (6a, 6b; 8a, 8b) respectively.
6. Apparatus according to claim 5 or one of the preceding claims, characterized in that the feed-roll and the squeeze-roll pairs (6a, 6b; 8a, 8b) are situated above the application-roll pair (7a, 7b) and the guide surfaces (9a, 9e; 10d, 10e) ascend outwards from the housing cages (9b, 10b) of the latter.
7. Apparatus according to one of the claims 5 or 6, characterized in that adjoining the guide surfaces (9d, 9e; 10d, 10e) are further cages (9a, 10a, 9c, 10c) open to the outside in the direction of the film carrier path, for the feed and squeeze rolls (6a, 6b, 8a, 8b).
8. Apparatus according to claim 7, characterized in that one drainage pipe (17a, 17b) each for the treatment liquid (13) contained in the apparatus opens out of the further cages (9a, 9c) for the lower feed or squeeze roll (6a; 8a) in each case.
9. Apparatus according to one of the preceding claims, characterized in that the upper edge (9g) of the vat-like container (9) formed by the housing cage (9b) and the further cages (9a, 9c) for the lower rolls (6a, 7a, 8a) in each case is arranged higher than the lower edge of the housing cage (10b) of the upper application roll (7b) and the adjoining guide surfaces (10d, 10e) so that the film carrier (5) can be moved through an immersion bath by means of the application rolls (7a, 7b) acting as transportation rolls.
10. Apparatus according to claim 9, characterized in that the contact planes of the feed and squeeze rolls (6a, 6b; 8a, 8b) respectively are situated above the upper edge (9g) of the vat-like container (9).
11. Apparatus according to claim 10, characterized in that the contact plane of the squeeze rolls (8a, 8b) is situated above the contact plane of the feed rolls (6a, 6b).
12. Apparatus, according to claims 4 and 8 or one of the other preceding claims, characterized in that the feed and discharge pipes (16, 17) open into a stock container (3) for the treatment liquid (13) and the treatment liquid can be pumped into the feed pipes (16) by means of a pump (15).
EP86113392A 1985-10-09 1986-09-29 Device for the treatment of a photographic film by liquid means Expired EP0218170B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3535980 1985-10-09
DE3535980A DE3535980C1 (en) 1985-10-09 1985-10-09 Device for the wet treatment of photographic layer supports

Publications (3)

Publication Number Publication Date
EP0218170A2 EP0218170A2 (en) 1987-04-15
EP0218170A3 EP0218170A3 (en) 1987-08-19
EP0218170B1 true EP0218170B1 (en) 1989-08-30

Family

ID=6283125

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86113392A Expired EP0218170B1 (en) 1985-10-09 1986-09-29 Device for the treatment of a photographic film by liquid means

Country Status (5)

Country Link
US (1) US4688917A (en)
EP (1) EP0218170B1 (en)
JP (1) JPS6289052A (en)
DE (1) DE3535980C1 (en)
DK (1) DK164675C (en)

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EP0271610B1 (en) * 1986-12-19 1992-03-04 Agfa-Gevaert N.V. Photographic processing apparatus and method
US4841321A (en) * 1987-05-07 1989-06-20 Fuji Photo Film Co., Ltd. Circulating liquid flow detecting apparatus in a machine for automatically processing light-sensitive material
DE3807837A1 (en) * 1988-03-10 1989-09-21 Agfa Gevaert Ag WET TREATMENT DEVICE FOR PHOTOGRAPHIC LAYER
JPH02240651A (en) * 1989-03-14 1990-09-25 Fuji Photo Film Co Ltd Processing method for silver halide photosensitive material
DE3813360C1 (en) * 1988-04-21 1989-10-26 Agfa-Gevaert Ag, 5090 Leverkusen, De
JP2729809B2 (en) * 1988-08-31 1998-03-18 コニカ株式会社 Automatic developing machine for silver halide color photographic light-sensitive materials
US4994840A (en) * 1990-03-16 1991-02-19 Eastman Kodak Company Apparatus for processing photosensitive material
GB9114090D0 (en) * 1991-06-29 1991-08-14 Kodak Ltd Photographic processing apparatus
US5270762A (en) * 1992-03-02 1993-12-14 Eastman Kodak Company Slot impingement for a photographic processing apparatus
US5317359A (en) * 1992-10-02 1994-05-31 Eastman Kodak Company Apparatus for processing photosensitive material
US5354379A (en) * 1993-02-08 1994-10-11 Minnesota Mining And Manufacturing Company Apparatus for applying a protective coating to a film strip
US5452043A (en) * 1993-02-19 1995-09-19 Eastman Kodak Company Rack and a tank for a photographic low volume thin tank insert for a rack and a tank photographic processing apparatus
GB2292816B (en) * 1994-08-27 1998-03-11 Kodak Ltd Improvements in or relating to photographic processing
GB2292817B (en) * 1994-08-27 1998-03-11 Kodak Ltd Improvements in or relating to photographic processing
JP2793966B2 (en) * 1994-09-28 1998-09-03 株式会社平河工業社 Photo processing device parts and photo processing device using the same
DE19541559A1 (en) * 1995-11-08 1997-05-15 Agfa Gevaert Ag Processing device for photographic materials
US5920742A (en) * 1997-12-22 1999-07-06 Eastman Kodak Company Nozzle assembly and a processing tank and method for processing photosensitive material using said nozzle assembly
GB0026948D0 (en) * 2000-11-03 2000-12-20 Eastman Kodak Co Processing photographic material

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US3561400A (en) * 1968-07-23 1971-02-09 Stromberg Datagraphix Inc Developer apparatus
GB1261245A (en) * 1969-02-04 1972-01-26 Agfa Gevaert Formerly Gevaert Processing apparatus
US3662660A (en) * 1970-08-05 1972-05-16 Ronald P Layne Apparatus for processing sensitized material
BE795122A (en) * 1972-02-21 1973-08-08 Agfa Gevaert Nv TREATMENT DEVICE FOR PHOTOGRAPHIC MATERIAL
DE2623702C3 (en) * 1976-05-26 1980-08-07 Agfa-Gevaert Ag, 5090 Leverkusen Developing device for photographic supports
DE2626447A1 (en) * 1976-06-12 1977-12-22 Agfa Gevaert Ag DEVELOPMENT DEVICE FOR PHOTOGRAPHIC LAYER CARRIERS
DE2731045A1 (en) * 1977-07-08 1979-01-25 Agfa Gevaert Ag DEVICE FOR WET TREATMENT OF PHOTOGRAPHIC LAYERS
DD207131A3 (en) * 1981-10-28 1984-02-15 Pentacon Dresden Veb DEVICE FOR WET TREATMENT PHOTOGRAPHIC LAYER

Also Published As

Publication number Publication date
EP0218170A3 (en) 1987-08-19
DK480386A (en) 1987-04-10
US4688917A (en) 1987-08-25
EP0218170A2 (en) 1987-04-15
DK164675C (en) 1992-12-14
DK480386D0 (en) 1986-10-08
JPS6289052A (en) 1987-04-23
DE3535980C1 (en) 1986-11-20
DK164675B (en) 1992-07-27
JPH0157335B2 (en) 1989-12-05

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