EP0039876A1 - Device for liquid treatment of photographic carriers - Google Patents

Device for liquid treatment of photographic carriers Download PDF

Info

Publication number
EP0039876A1
EP0039876A1 EP81103366A EP81103366A EP0039876A1 EP 0039876 A1 EP0039876 A1 EP 0039876A1 EP 81103366 A EP81103366 A EP 81103366A EP 81103366 A EP81103366 A EP 81103366A EP 0039876 A1 EP0039876 A1 EP 0039876A1
Authority
EP
European Patent Office
Prior art keywords
roller
rollers
treatment
transport
boundary wall
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
EP81103366A
Other languages
German (de)
French (fr)
Other versions
EP0039876B1 (en
Inventor
Remi Dr. Vanhorebeek
Erwin Geyken
Peter Mayer
Helmut Schausberger
Rudolf Brunner
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
Priority to AT81103366T priority Critical patent/ATE5281T1/en
Publication of EP0039876A1 publication Critical patent/EP0039876A1/en
Application granted granted Critical
Publication of EP0039876B1 publication Critical patent/EP0039876B1/en
Expired legal-status Critical Current

Links

Images

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
    • G03D5/00—Liquid processing apparatus in which no immersion is effected; Washing apparatus in which no immersion is effected
    • G03D5/04—Liquid processing apparatus in which no immersion is effected; Washing apparatus in which no immersion is effected using liquid sprays

Definitions

  • the invention relates to a device for the wet treatment of photographic substrates, in particular sheet films, with horizontally traversed treatment chambers, each with an upper and a lower boundary wall, on the inlet and outlet sides of which a pair of transport rollers is arranged and into which a line for treatment liquid opens.
  • the treatment chambers are generally designed as pressure chambers into which the treatment liquid is introduced through small openings with a high flow rate.
  • the liquid build-up between the boundary surfaces will collapse with only slight deviations in the pumping power, so that the layer support is only unevenly loaded with liquid.
  • a device in which the treatment chamber is divided by means of partition walls into a main chamber and two secondary chambers receiving the pairs of transport rollers, and the partition walls have shaped pieces which cooperate with the pairs of transport rollers to seal the main chamber.
  • a liquid bath is thus formed in the main chamber, the level of which is above the layer support level.
  • such a device has proven to be complicated in construction.
  • due to the fact that the treatment liquid is fed in from the bottom there is a different liquid flow with respect to the two substrate surfaces, which can result in uneven development results, particularly in the case of X-ray films.
  • the object of the invention is therefore to develop a device at the outset in such a way that a better development result can be achieved with a simpler structure.
  • the invention achieves a construction of the treatment chamber that is simple in terms of production engineering and can be implemented as a plastic injection-molded part, with both sides of the layer carrier being uniformly wetted by the favorable liquid supply.
  • a chamber made of V4A stainless steel is of course also possible, which ensures high dimensional stability. Due to the simple elements of the chamber structure and the lateral liquid supply, the treatment chamber itself can have a relatively small volume have, so that the receiving volume of a receiving container supplying the treatment chamber can be less than 1.25 liters. This means that a circulation pump with lower output can also be used.
  • Fig. 1 denotes a container in which support walls 2 and 2 'are inserted.
  • the figure is substantially arranged with respect to one side to the film running direction, lies in the figure in the background T rägerwand 2 shown, whereas from the other on the side arranged, 'only a section is shown in the foreground support wall 2 lying.
  • a first pair of transport rollers 3 and 4 is mounted on the entry side of the treatment station and a second pair of transport rollers 5 and 6 on the exit side of the station.
  • an upper boundary wall 7 is arranged, which is also attached between the carrier walls 2 and 2 '.
  • the upper boundary wall has an inclination to the film run direction 8 on. This oblique course of the upper boundary wall has the sense that any air introduced into the chamber can escape in a simple manner, so that the risk of oxidation, particularly in the developer bath, is largely avoided.
  • a lower boundary wall 9 is arranged between the support walls 2 and 2 ', which has an approximately undulating cross-sectional shape. More precisely, a narrow elevation 9a is provided on the lower boundary wall behind the pair of inlet rollers 3 and 4, which is followed by a depression 9b which extends essentially over the length of the chamber. The end 9c of the lower boundary wall lying in front of the pair of exit rollers 5 and 6 has an upward tendency and is directed towards the upper part of the lower exit roller 6. With a boundary wall 9 shaped in this way it is achieved that the incoming film is raised by the elevation 9a and passed on essentially horizontally. The recess 9b is intended to prevent the film from dragging along the lower boundary wall. The rising end 9c in turn serves to raise the film leading edge and guide it into the nip of the exit roller pair 5 and 6.
  • baffle lips 11 and 12 which extend over the entire length of the rollers.
  • the baffle lip 11 directed towards the inlet side touches the lower roller 4 and the baffle lip 12 directed towards the outlet side contacts the lower roller 6.
  • Both lips have an angle of less than 90 ° with respect to the tangent of contact, the inclined baffle lip being aligned in the direction of movement of the respective roller surface 4 or 6.
  • the end of the treatment chamber is limited by two mold walls 10, of which only one mold wall arranged in front of the support wall 2 is shown in the drawing. These mold walls 10 terminate on the one hand with the upper and lower boundary walls 7 and 9 or the sealing lips 11 and 12.
  • the sides facing the roller pairs have contours which are counter-shaped to the roller surfaces in the region of the roller contact. This means that the edges of the mold walls 10 in this area maintain a distance of approximately 0.5 mm from the roller surfaces and extend almost to the line of contact of the rollers.
  • An input opening 14 is formed in the carrier wall 2 and is connected to a pipeline 15 running outside the chamber 13.
  • the pipeline 15 is inserted into a pipe socket 16 attached to the tank bottom 1, which is connected via a line 17 to an outlet opening 18 extending from the tank bottom 1.
  • a circulation pump 19 is provided in line 17.
  • the circulation pump 19 now sucks the liquid from the container 1 through the outlet opening 18 and leads it via the line 17, the pipe socket 16 leading through the tank bottom, the pipe 15 to the inlet opening 14 in the carrier wall 2. This first becomes the chamber 13 filled.
  • An outlet opening (not shown) is provided on the opposite carrier wall 2 ', through which the excess treatment liquid can flow back into the container 1. This ensures that due to the very small chamber volume, a relatively high flow velocity is built up transversely to the transport direction 8 of the layer support.
  • the small chamber volume also means that a container volume of 1.25 liters is sufficient, even with a chamber size for substrate widths of 50 or 60 cm. This also has the consequence that the circulation pump 19 need only be of low power.
  • FIG. 2 shows an alternative embodiment, the same parts being provided with the same reference numerals.
  • the lower boundary wall 9 with its damming lips 11 and 12
  • three further rollers are provided which touch one another and form the lower boundary.
  • a first roller 20 thereof contacts the lower roller 4 of the pair of inlet rollers and a second roller 21 contacts the lower roller 6 of the pair of outlet rollers.
  • the roller 22 contacting the two rollers is arranged between the rollers 20 and 21. This also results in a secure seal for the liquid in the chamber 13 '.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photographic Processing Devices Using Wet Methods (AREA)
  • Photographic Developing Apparatuses (AREA)
  • Coating Apparatus (AREA)
  • Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)

Abstract

Die Vorrichtung zur Naßbehandlung von Blattfilmen weist eine horizontal durchlaufene Behandlungskammer (13) mit je einer oberen (7) und einer unteren Begrenzungswand (9) auf, an deren Eintritts- und Austrittsseite jeweils ein Transportwalzenpaar (3,4, bzw. 5,6) angeordnet ist. In diese Kammer (13) mündet eine Leitung (14) für die Behandlungsflüssigkeit. Zwischen der unteren Begrenzungswand (9) und der jeweils unteren Transportwalze (4,6) ist je eine auf die Gesamtlänge der Transportwalzen (4,6), diese berührende Staulippe (11, 12) vorgesehen. Die Flüssigkeitszufuhr in die Behandlungskammer (13) erfolgt quer zur Transportrichtung (8) der Blattfilme und etwa in deren Höhe. Die untere Begrenzungswand (9) weist in Nähe des Eintrittswalzenpaares (3,4) eine den Blattfilm stützende Erhebung (9a) auf.

Figure imgaf001
The device for the wet treatment of sheet films has a horizontally continuous treatment chamber (13), each with an upper (7) and a lower boundary wall (9), on the inlet and outlet side of which a pair of transport rollers (3, 4 or 5, 6) is arranged. A line (14) for the treatment liquid opens into this chamber (13). Between the lower boundary wall (9) and the respective lower transport roller (4, 6) there is a baffle lip (11, 12) touching the total length of the transport rollers (4, 6). The liquid is fed into the treatment chamber (13) transversely to the transport direction (8) of the sheet films and approximately at their height. The lower boundary wall (9) has an elevation (9a) supporting the sheet film in the vicinity of the pair of inlet rollers (3, 4).
Figure imgaf001

Description

Die Erfindung betrifft eine Vorrichtung zur Naßbehandlung fotografischer Schichtträger, insbesondere von Blattfilmen, mit horizontal durchlaufenen Behandlungskammern mit je einer oberen und einer unteren Begrenzungswand, an deren Eintritts- und Austrittsseite jeweils ein Transportwalzenpaar angeordnet ist und in welche eine Leitung für Behandlungsflüssigkeit mündet.The invention relates to a device for the wet treatment of photographic substrates, in particular sheet films, with horizontally traversed treatment chambers, each with an upper and a lower boundary wall, on the inlet and outlet sides of which a pair of transport rollers is arranged and into which a line for treatment liquid opens.

Bei bekannten Vorrichtungen der eingangs genannten Art sind die Behandlungskammern im allgemeinen als Druckkammern ausgebildet, in welche die Behandlungsflüssigkeit durch kleine Öffnungen mit großer Strömungsgeschwindigkeit eingeleitet wird. Dabei besteht jedoch die Gefahr, daß bei nur geringen Abweichungen der Pumpleistung der Flüssigkeitsaufbau zwischen den Begrenzungsflächen zusammenbricht, so daß der Schichtträger nur ungleichmäßig mit Flüssigkeit beaufschlagt wird.In known devices of the type mentioned at the outset, the treatment chambers are generally designed as pressure chambers into which the treatment liquid is introduced through small openings with a high flow rate. However, there is a risk that the liquid build-up between the boundary surfaces will collapse with only slight deviations in the pumping power, so that the layer support is only unevenly loaded with liquid.

Um dies zu vermeiden ist auch eine Vorrichtung bekannt geworden (P 27 31 045), bei der die Behandlungskammer mittels Trennwände in eine Hauptkammer und zwei die Transportwalzenpaare aufnehmende Nebenkammern aufgeteilt ist und die Trennwände mit den Transportwalzenpaaren zusammenwirkende Formstücke zur Abdichtung der Hauptkammer aufweisen. Damit wird in der Hauptkammer ein Flüssigkeitsbad gebildet, dessen Niveau oberhalb der Schichtträgerebene liegt. Eine solche Vorrichtung hat sich jedoch als kompliziert im Aufbau erwiesen. Außerdem besteht durch die bodenseitige Zuführung der Behandlungsflüssigkeit eine bezogen auf die beiden Schichtträgerflächen unterschiedliche Flüssigkeitsströmung, womit insbesondere bei Röntgenfilmen ungleiche Entwicklungsergebnisse entstehen können.In order to avoid this, a device has also become known (P 27 31 045), in which the treatment chamber is divided by means of partition walls into a main chamber and two secondary chambers receiving the pairs of transport rollers, and the partition walls have shaped pieces which cooperate with the pairs of transport rollers to seal the main chamber. A liquid bath is thus formed in the main chamber, the level of which is above the layer support level. However, such a device has proven to be complicated in construction. In addition, due to the fact that the treatment liquid is fed in from the bottom, there is a different liquid flow with respect to the two substrate surfaces, which can result in uneven development results, particularly in the case of X-ray films.

Aufgabe der Erfindung ist es daher, eine Vorrichtung der eingangs derart weiterzubilden, daß bei einem einfacheren Aufbau ein besseres Entwicklungsergebnis erzielt werden kann.The object of the invention is therefore to develop a device at the outset in such a way that a better development result can be achieved with a simpler structure.

Diese Aufgabe wird durch die im Kennzeichen des Anspruchs 1 beschriebene Erfindung gelöst.This object is achieved by the invention described in the characterizing part of claim 1.

Mit der Erfindung wird eine fertigungstechnisch einfache, als Kunststoffspritzteil ausführbare Konstruktion der Behandlungskammer erreicht, wobei durch die günstige Flüssigkeitszufuhr eine gleichmäßige Benetzung beider Schichtträgerseiten erfolgt. Für größere Verarbeitungsbreiten von mehr als 400 mm Breite ist natürlich auch eine aus V4A-Edelstahl gezogene Kammer möglich, durch welche eine hohe Formstabilität gewährleistet ist. Durch die einfachen Elemente des Kammeraufbaus und die seitliche Flüssigkeitszufuhr kann die Behandlungskammer selbst ein verhältnismäßig kleines Volumen aufweisen, so daß das Aufnahmevolumen eines die Behandlungskammer versorgenden Aufnahmebehälters kleiner als 1,25 Liter sein kann. Damit kann auch eine Umwälzpumpe mit geringerer Leistung Anwendung finden.The invention achieves a construction of the treatment chamber that is simple in terms of production engineering and can be implemented as a plastic injection-molded part, with both sides of the layer carrier being uniformly wetted by the favorable liquid supply. For larger processing widths of more than 400 mm width, a chamber made of V4A stainless steel is of course also possible, which ensures high dimensional stability. Due to the simple elements of the chamber structure and the lateral liquid supply, the treatment chamber itself can have a relatively small volume have, so that the receiving volume of a receiving container supplying the treatment chamber can be less than 1.25 liters. This means that a circulation pump with lower output can also be used.

Weitere Einzelheiten und Vorteile der Erfindung ergeben sich aus den Unteransprüchen im Zusammenhang mit der Beschreibung von Ausführungsbeispielen, die anhand von Figuren eingehend erläutert sind. Es zeigen:

  • Fig. 1 einen Querschnitt durch eine erfindungsgemäße Behandlungsstation; und
  • Fig. 2 einen Querschnitt durch eine weitere Ausführungsform der Erfindung.
Further details and advantages of the invention emerge from the subclaims in connection with the description of exemplary embodiments, which are explained in detail with reference to figures. Show it:
  • 1 shows a cross section through a treatment station according to the invention. and
  • Fig. 2 shows a cross section through a further embodiment of the invention.

In Fig. 1 ist mit 1 ein Behälter bezeichnet, in welchen Trägerwände 2 und 2' eingesetzt sind. In der Figur ist im wesentlichen die auf einer Seite bezogen auf die Filmlaufrichtung angeordnete, in der Figur im Hintergrund liegende Trägerwand 2 dargestellt, wogegen von der auf der anderen Seite angeordneten, im Vordergrund liegenden Trägerwand 2' nur ein Ausschnitt wiedergegeben ist. Zwischen den sich gegenüberliegenden Trägerwänden 2 und 2' ist ein erstes Transportrollenpaar 3 und 4 an der Eintrittsseite der Behandlungsstation und ein zweites Transportwalzenpaar 5 und 6 an der Austrittsseite der Station gelagert. Zwischen den oberen Walzen 3 und 5 der beiden Walzenpaare ist eine obere Begrenzungswand 7 angeordnet, welche ebenfalls zwischen den Trägerwänden 2 und 2' angebracht ist. Die obere Begrenzungswand weist eine Neigung gegenüber der Filmlaufrichtung 8 auf. Dieser schräge Verlauf der oberen Begrenzungswand hat den Sinn, daß eventuell mit in die Kammer eingeführte Luft auf einfache Weise entweichen kann, so daß die Oxydationsgefahr insbesondere im Entwicklerbad weitgehend vermieden ist.In Fig. 1, 1 denotes a container in which support walls 2 and 2 'are inserted. In the figure is substantially arranged with respect to one side to the film running direction, lies in the figure in the background T rägerwand 2 shown, whereas from the other on the side arranged, 'only a section is shown in the foreground support wall 2 lying. Between the opposite carrier walls 2 and 2 ', a first pair of transport rollers 3 and 4 is mounted on the entry side of the treatment station and a second pair of transport rollers 5 and 6 on the exit side of the station. Between the upper rollers 3 and 5 of the two pairs of rollers an upper boundary wall 7 is arranged, which is also attached between the carrier walls 2 and 2 '. The upper boundary wall has an inclination to the film run direction 8 on. This oblique course of the upper boundary wall has the sense that any air introduced into the chamber can escape in a simple manner, so that the risk of oxidation, particularly in the developer bath, is largely avoided.

Außerdem ist zwischen den Trägerwanden 2 und 2' eine untere Begrenzungswand 9 angeordnet, welche eine annähernd wellenförmige Querschnittsform aufweist. Genauer gesagt ist an der unteren Begrenzungswand hinter dem Eintrittswalzenpaar 3 und 4 eine schmale Erhebung 9a vorgesehen, welcher eine sich im wesentlichen über die Kammerlänge erstreckende Vertiefung 9b folgt. Das vor dem Austrittswalzenpaar 5 und 6 liegende Ende 9c der unteren Begrenzungswand weist wieder aufsteigende Tendenz auf und ist auf den oberen Teil der unteren Austrittswalze 6 gerichtet. Mit einer so geformten Begrenzungswand 9 wird erreicht, daß der eintretende Film durch die Erhebung 9a angehoben und im wesentlichen horizontal weitergeleitet wird. Die Vertiefung 9b soll vermeiden, daß der Film an der unteren Begrenzungswand entlangschleift. Das ansteigende Ende 9c dient wiederum dem Anheben der Filmführungskante und deren Führung in den Walzenspalt des Austrittswalzenpaares 5 und 6.In addition, a lower boundary wall 9 is arranged between the support walls 2 and 2 ', which has an approximately undulating cross-sectional shape. More precisely, a narrow elevation 9a is provided on the lower boundary wall behind the pair of inlet rollers 3 and 4, which is followed by a depression 9b which extends essentially over the length of the chamber. The end 9c of the lower boundary wall lying in front of the pair of exit rollers 5 and 6 has an upward tendency and is directed towards the upper part of the lower exit roller 6. With a boundary wall 9 shaped in this way it is achieved that the incoming film is raised by the elevation 9a and passed on essentially horizontally. The recess 9b is intended to prevent the film from dragging along the lower boundary wall. The rising end 9c in turn serves to raise the film leading edge and guide it into the nip of the exit roller pair 5 and 6.

An beiden Enden der unteren Begrenzungswand 9 sind Staulippen 11 bzw. 12 angebracht, welche sich auf die Gesamtlänge der Walzen erstrecken. Die zur.Eintrittsseite gerichtete Staulippe 11 berührt die untere Walze 4 und die zur Austrittsseite gerichtete Staulippe 12 die untere Walze 6. Beide Lippen haben einen Winkel von kleiner 90° gegenüber der Berührungstangente, wobei die geneigte Staulippe in Bewegungsrichtung der jeweiligen Walzenoberfläche 4 bzw. 6 ausgerichtet ist.At both ends of the lower boundary wall 9 there are baffle lips 11 and 12 which extend over the entire length of the rollers. The baffle lip 11 directed towards the inlet side touches the lower roller 4 and the baffle lip 12 directed towards the outlet side contacts the lower roller 6. Both lips have an angle of less than 90 ° with respect to the tangent of contact, the inclined baffle lip being aligned in the direction of movement of the respective roller surface 4 or 6.

Die stirnseitige Begrenzung der Behandlungskammer erfolgt durch zwei Formwände 10, von welchen in der Zeichnung nur die eine vor der Trägerwand 2 angeordnete Formwand dargestellt ist. Diese Formwände 10 schließen zum einen mit der oberen und unteren Begrenzungswand 7 und 9 bzw. den Dichtlippen 11 und 12 ab. Die zu den Walzenpaaren weisenden Seiten weisen Konturen auf, welche gegenformgleich mit den Walzenoberflächen im Bereich der Walzenberührung sind. Das bedeutet, daß die Ränder der Formwände 10 in diesem Bereich einen Abstand von etwa 0,5 mm zu den Walzenoberflächen einhalten und beinahe bis zur Berührungslinie der Walzen reichen.The end of the treatment chamber is limited by two mold walls 10, of which only one mold wall arranged in front of the support wall 2 is shown in the drawing. These mold walls 10 terminate on the one hand with the upper and lower boundary walls 7 and 9 or the sealing lips 11 and 12. The sides facing the roller pairs have contours which are counter-shaped to the roller surfaces in the region of the roller contact. This means that the edges of the mold walls 10 in this area maintain a distance of approximately 0.5 mm from the roller surfaces and extend almost to the line of contact of the rollers.

Mit den Elementen Transportwalzenpaare 3 und 4 sowie 5 und 6, obere Begrenzungswand 7, untere Begrenzungswand 9 mit Dichtlippen 11 und 12 sowie den beiden Formwänden 10 wird somit eine nahezu dichte Behandlungskammer 13 gebildet.With the elements transport roller pairs 3 and 4 and 5 and 6, upper boundary wall 7, lower boundary wall 9 with sealing lips 11 and 12 and the two mold walls 10, an almost sealed treatment chamber 13 is thus formed.

In der Trägerwand 2 ist eine Eingabeöffnung 14 ausgeformt, welche mit einer außerhalb der Kammer 13 verlaufenden Rohrleitung 15 verbunden ist. Die Rohrleitung 15 ist in einen am Behälterboden 1 angebrachten Rohrstutzen 16 eingesteckt, welche über eine Leitung 17 mit einer vom Behälterboden 1 ausgehenden Ablauföffnung 18 in Verbindung steht. In der Leitung 17 ist eine Umwälzpumpe 19 vorgesehen.An input opening 14 is formed in the carrier wall 2 and is connected to a pipeline 15 running outside the chamber 13. The pipeline 15 is inserted into a pipe socket 16 attached to the tank bottom 1, which is connected via a line 17 to an outlet opening 18 extending from the tank bottom 1. A circulation pump 19 is provided in line 17.

Im Betrieb saugt nun die Umwälzpumpe 19 die Flüssigkeit aus dem Behälter 1 durch die Auslaßöffnung 18 ab und führt sie über die Leitung 17, den durch den Behälterboden hindurchführenden Rohrstutzen 16, die Rohrleitung 15 zur Eingabeöffnung 14 in der Trägerwand 2. Damit wird zunächst die Kammer 13 gefüllt. An der gegenüberliegenden Trägerwand 2' ist eine nicht dargestellte Austrittsöffnung vorgesehen, durch welche die überschüssige Behandlungsflüssigkeit wieder in den Behälter 1 abfließen kann. Damit wird erreicht, daß aufgrund des sehr kleinen Kammervolumens eine verhältnismäßig große Strömungsgeschwindigkeit quer zur Transportrichtung 8 des Schichtträgers aufgebaut wird. Das kleine Kammervolumen bringt es auch mit sich, daß selbst bei einer Kammergröße für Schichtträgerbreiten von 50 oder 60 cm ein Behältervolumen von 1,25 Litern ausreichend ist. Dies hat auch zur Folge, daß die Umwälzpumpe 19 nur von geringer Leistung zu sein braucht.In operation, the circulation pump 19 now sucks the liquid from the container 1 through the outlet opening 18 and leads it via the line 17, the pipe socket 16 leading through the tank bottom, the pipe 15 to the inlet opening 14 in the carrier wall 2. This first becomes the chamber 13 filled. An outlet opening (not shown) is provided on the opposite carrier wall 2 ', through which the excess treatment liquid can flow back into the container 1. This ensures that due to the very small chamber volume, a relatively high flow velocity is built up transversely to the transport direction 8 of the layer support. The small chamber volume also means that a container volume of 1.25 liters is sufficient, even with a chamber size for substrate widths of 50 or 60 cm. This also has the consequence that the circulation pump 19 need only be of low power.

In Fig. 2 ist eine alternative Ausführungsform dargestellt, wobei gleiche Teile mit gleichen Bezugszeichen versehen sind. Statt der unteren Begrenzungswand 9 mit ihren Staulippen 11 und 12 sind drei weitere Walzen vorgesehen, welche sich untereinander berühren und die untere Begrenzung bilden. Eine erste Walze 20 davon berührt die untere Walze 4 des Eintrittswalzenpaares und eine zweite Walze 21 die untere Walze 6 des Austrittswalzenpaares. Zwischen den Walzen 20 und 21 ist die beide Walzen berührende Walze 22 angeordnet. Damit ergibt sich ebenfalls eine sichere Abdichtung für die Flüssigkeit in der Kammer 13'.2 shows an alternative embodiment, the same parts being provided with the same reference numerals. Instead of the lower boundary wall 9 with its damming lips 11 and 12, three further rollers are provided which touch one another and form the lower boundary. A first roller 20 thereof contacts the lower roller 4 of the pair of inlet rollers and a second roller 21 contacts the lower roller 6 of the pair of outlet rollers. The roller 22 contacting the two rollers is arranged between the rollers 20 and 21. This also results in a secure seal for the liquid in the chamber 13 '.

Claims (9)

1. Vorrichtung zur Naßbehandlung fotografischer Schichtträger, insbesondere von Blattfilmen, mit horizontal durchlaufenen Behandlungskammern mit je einer oberen und einer unteren Begrenzungswand, an deren Eintritts-und Austrittsseite jeweils ein Transportwalzenpaar angeordnet ist und in welche eine Leitung für Behandlungsflüssigkeit mündet, dadurch gekennzeichnet, daß zwischen der unteren Begrenzungswand (9) und der jeweils unteren Transportwalze (4, 6) je eine auf die Gesamtlänge die Transportwalze (4, 6) tangierende Staulippe (11, 12) vorgesehen ist und die Flüssigkeitszufuhr in die Behandlungskammer (13) quer zur Transportrichtung (8) des Schichtträgers und etwa in Höhe des Schichtträgers erfolgt.1. Device for the wet treatment of photographic substrates, in particular of sheet films, with horizontally traversed treatment chambers, each with an upper and a lower boundary wall, on the inlet and outlet sides of which a pair of transport rollers is arranged and into which a line for treatment liquid opens, characterized in that between the lower boundary wall (9) and the lower transport roller (4, 6) each have a baffle lip (11, 12) tangent to the entire length of the transport roller (4, 6) and the liquid supply into the treatment chamber (13) transverse to the transport direction ( 8) of the support and approximately at the level of the support. 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Staulippen (11, 12) elastisch sind.2. Device according to claim 1, characterized in that the baffle lips (11, 12) are elastic. 3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Staulippe (11, 12) in einem Winkel kleiner 90° an der Transportwalze anliegt, wobei die 'Richtung der Staulippe etwa in Drehrichtung der Transportwalze verläuft.3. Apparatus according to claim 1 or 2, characterized in that the baffle lip (11, 12) bears at an angle of less than 90 ° on the transport roller, the 'direction of the baffle lip extending approximately in the direction of rotation of the transport roller. 4. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die untere Begrenzungswand (9) in Nähe des Eintrittswalzenpaares (3, 4) eine den Schichtträger stützende Erhebung (9a) aufweist, der eine Vertiefung (9b) mit einer zum Austrittswalzenpaar (5, 6) gerichteten Führung (9c) folgt.4. Device according to one of claims 1 to 3, characterized in that the lower boundary wall (9) in the vicinity of the pair of inlet rollers (3, 4) has a support supporting the layer support (9a), which has a recess (9b) with one to the pair of outlet rollers (5, 6) directional guide (9c) follows. 5. Vorrichtung zur Naßbehandlung fotografischer Schichtträger, insbesondere von Blattfilmen, mit horizontal durchlaufenen Behandlungskammern mit je einer oberen und einer unteren Begrenzungswand, an deren Eintritts-und Austrittsseite jeweils ein Transportwalzenpaar angeordnet ist und in welche eine Leitung für Behandlungsflüssigkeit mündet, dadurch gekennzeichnet, daß zwischen den unteren Transportwalzen (4, 6) eine ungerade Anzahl von Walzen (20 bis 22) vorgesehen ist, wobei die erste Walze (20) an der unteren Eingangswalze (4) und die letzte Walze (21) an der unteren Ausgangswalze (6) sowie die dazwischenliegenden Walzen (22) sowohl an der vorangehenden wie an der nachfolgenden Walze anliegen.5. Apparatus for the wet treatment of photographic supports, in particular of sheet films, with horizontally traversed treatment chambers, each with an upper and a lower boundary wall, on the inlet and outlet sides of which a pair of transport rollers is arranged and into which a line for treatment liquid opens, characterized in that between the lower transport rollers (4, 6) are provided with an odd number of rollers (20 to 22), the first roller (20) on the lower input roller (4) and the last roller (21) on the lower output roller (6) and the intermediate rollers (22) rest on both the preceding and the subsequent roller. 6. Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die stirnseitige Begrenzung der Behandlungskammern (13; 13') durch Formwände (10) erfolgt, deren seitlicher Rand den zylindrischen Walzenoberflächen angepaßt ist und die Walzen (3, 4; 5, 6) nahezu berührt.6. Device according to one of claims 1 to 5, characterized in that the end face of the treatment chambers (13; 13 ') is formed by mold walls (10), the side edge of which is adapted to the cylindrical roller surfaces and the rollers (3, 4; 5 , 6) almost touched. 7. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, daß der Rand der Formwände (10) einen Abstand von etwa 0,5 mm zur Walzenoberfläche einnimmt.7. The device according to claim 6, characterized in that the edge of the mold walls (10) takes a distance of about 0.5 mm to the roller surface. 8. Vorrichtung nach Anspruch 6 oder 7, dadurch gekennzeichnet, daß in einer'Formwand (10) auf einer Seite der Behandlungskammern (13, 13') eine Eingabeöffnung (14) für die Behandlungsflüssigkeit ausgeformt ist, welche sich in Höhe der Schichtträgerbahn befindet.8. Apparatus according to claim 6 or 7, characterized in that in a 'shaped wall (10) on one side of the treatment chambers (13, 13') an input opening (14) for the treatment liquid is formed, which is located at the level of the substrate sheet. 9. Vorrichtung nach Anspruch 8, dadurch gekennzeichnet, daß in der anderen Formwand (10) eine Austrittsöffnung vorgesehen ist, welche in einen Behälter (1) führt, von wo aus über eine Umwälzpumpe (19) die Flüssigkeit in die Eingabeöffnung (14) förderbar ist.9. The device according to claim 8, characterized in that in the other mold wall (10) an outlet opening is provided which leads into a container (1), from where the liquid into the input opening (14) can be conveyed via a circulation pump (19) is.
EP81103366A 1980-05-10 1981-05-05 Device for liquid treatment of photographic carriers Expired EP0039876B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81103366T ATE5281T1 (en) 1980-05-10 1981-05-05 DEVICE FOR THE WET TREATMENT OF PHOTOGRAPHIC COATINGS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3017946 1980-05-10
DE3017946A DE3017946C2 (en) 1980-05-10 1980-05-10 Apparatus for the wet treatment of photographic substrates

Publications (2)

Publication Number Publication Date
EP0039876A1 true EP0039876A1 (en) 1981-11-18
EP0039876B1 EP0039876B1 (en) 1983-11-09

Family

ID=6102066

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81103366A Expired EP0039876B1 (en) 1980-05-10 1981-05-05 Device for liquid treatment of photographic carriers

Country Status (6)

Country Link
US (1) US4327988A (en)
EP (1) EP0039876B1 (en)
JP (1) JPS5924409B2 (en)
AT (1) ATE5281T1 (en)
DE (1) DE3017946C2 (en)
DK (1) DK205581A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0674230A1 (en) * 1994-03-25 1995-09-27 Agfa-Gevaert N.V. Apparatus and method for making a lithographic offset plate by the silver salt diffusion transfer process

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3213416C2 (en) * 1982-04-10 1984-03-22 Staude, geb. Bartels, Eva, 6366 Wölfersheim Device for developing microfilms
DE3364266D1 (en) * 1982-10-05 1986-07-31 Ciba Geigy Ag Device for the wet treatment of photosensitive sheets
DE3347354A1 (en) * 1983-12-28 1985-07-11 Maschinenfabrik Gehring Gmbh & Co Kg, 7302 Ostfildern Tool-change device for honing machines
JPS60178017U (en) * 1984-05-07 1985-11-26 崔　弘寛 road safety sign board
JPS6158212U (en) * 1984-09-14 1986-04-19
DE3437329A1 (en) * 1984-10-11 1986-04-24 Hoechst Ag, 6230 Frankfurt DEVICE FOR TREATING PRINTING PLATES WITH A LIQUID
JPS6168113U (en) * 1984-10-11 1986-05-10
US4736221A (en) * 1985-10-18 1988-04-05 Fuji Photo Film Co., Ltd. Method and device for processing photographic film using atomized liquid processing agents
JPS62133711U (en) * 1986-02-12 1987-08-22
JP2807826B2 (en) * 1988-06-27 1998-10-08 コニカ株式会社 Photosensitive material processing equipment
JP2739357B2 (en) * 1988-11-09 1998-04-15 コニカ株式会社 Automatic developing machine for silver halide photographic materials
JPH02109353U (en) * 1989-02-16 1990-08-31
JPH02119248U (en) * 1989-03-06 1990-09-26
JPH082673Y2 (en) * 1989-05-31 1996-01-29 株式会社フラット Film developing device
US4989028A (en) * 1989-10-25 1991-01-29 Eastman Kodak Company Apparatus for processing light sensitive material
GB9025598D0 (en) * 1990-11-24 1991-01-09 Kodak Ltd Photographic processing apparatus
JPH0481148U (en) * 1990-11-27 1992-07-15
US5357307A (en) * 1992-11-25 1994-10-18 Eastman Kodak Company Apparatus for processing photosensitive material
US5411840A (en) * 1992-12-21 1995-05-02 Eastman Kodak Company Low volume processing for establishing boundary conditions to control developer diffusion in color photographic elements
US5313242A (en) * 1993-04-27 1994-05-17 Eastman Kodak Company Thru-wall web processing apparatus
US5353088A (en) * 1993-05-03 1994-10-04 Eastman Kodak Company Automatic tray processor
US5400106A (en) * 1993-05-03 1995-03-21 Eastman Kodak Company Automatic tray processor

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3169887A (en) * 1961-05-04 1965-02-16 Eastman Kodak Co Electrophotographic developing apparatus
DE1910236A1 (en) * 1969-02-28 1970-09-17 Olympia Werke Ag Device for wetting an electrostatically charged and exposed recording medium
DE2305382A1 (en) * 1972-02-21 1973-09-06 Agfa Gevaert Ag PHOTOGRAPHIC PROCESSING APPARATUS
DE2545487B2 (en) * 1975-10-10 1978-05-11 Agfa-Gevaert Ag, 5090 Leverkusen Continuous developing machine
DE2164981B2 (en) * 1971-12-28 1979-04-05 Hoechst Ag, 6000 Frankfurt Device for the liquid development of electrophotographic recording material

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3774521A (en) * 1969-12-19 1973-11-27 Du Pont Photographic developing apparatus
US3988756A (en) * 1974-01-29 1976-10-26 Agfa-Gevaert, A.G. Apparatus for processing webs of photographic material
US4023190A (en) * 1975-06-02 1977-05-10 Sybron Corporation Film processor
US4101919A (en) * 1976-08-02 1978-07-18 Quantor Corporation Film processing apparatus
JPS5350438U (en) * 1976-10-01 1978-04-28
DE2731045A1 (en) * 1977-07-08 1979-01-25 Agfa Gevaert Ag DEVICE FOR WET TREATMENT OF PHOTOGRAPHIC LAYERS

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3169887A (en) * 1961-05-04 1965-02-16 Eastman Kodak Co Electrophotographic developing apparatus
DE1910236A1 (en) * 1969-02-28 1970-09-17 Olympia Werke Ag Device for wetting an electrostatically charged and exposed recording medium
DE2164981B2 (en) * 1971-12-28 1979-04-05 Hoechst Ag, 6000 Frankfurt Device for the liquid development of electrophotographic recording material
DE2305382A1 (en) * 1972-02-21 1973-09-06 Agfa Gevaert Ag PHOTOGRAPHIC PROCESSING APPARATUS
DE2545487B2 (en) * 1975-10-10 1978-05-11 Agfa-Gevaert Ag, 5090 Leverkusen Continuous developing machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0674230A1 (en) * 1994-03-25 1995-09-27 Agfa-Gevaert N.V. Apparatus and method for making a lithographic offset plate by the silver salt diffusion transfer process

Also Published As

Publication number Publication date
JPS574045A (en) 1982-01-09
DE3017946C2 (en) 1986-06-12
ATE5281T1 (en) 1983-11-15
EP0039876B1 (en) 1983-11-09
US4327988A (en) 1982-05-04
JPS5924409B2 (en) 1984-06-09
DE3017946A1 (en) 1981-11-12
DK205581A (en) 1981-11-11

Similar Documents

Publication Publication Date Title
EP0039876B1 (en) Device for liquid treatment of photographic carriers
DE1296521B (en) Developing device for photographic support
DE2633145A1 (en) DEVICE FOR WET TREATMENT OF PHOTOGRAPHIC LAYERS
DE69104874T2 (en) Device for developing photosensitive material.
DE3107561C2 (en)
DE1961026C3 (en) Photographic support developing device
DE3345084C2 (en) Developing device for horizontally guided supports
EP0218170A2 (en) Device for the treatment of a photographic film by liquid means
CH629607A5 (en) DEVICE FOR WET TREATMENT OF PHOTOGRAPHIC LAYER.
DE69213677T2 (en) PHOTOGRAPHIC DEVELOPMENT DEVICE
EP0191733B1 (en) Device for the liquid treatment of light-sensitive sheet material
EP0520323B1 (en) Apparatus for treating panel-type objects
DE2238133A1 (en) CASCADE FOUNDER
DE2623702A1 (en) DEVELOPMENT DEVICE FOR PHOTOGRAPHIC LAYER CARRIERS
DE69124678T2 (en) Processor for photosensitive material
EP0105833B1 (en) Device for the wet treatment of photosensitive sheets
DE69304410T2 (en) Processor
DE2828580B2 (en) Liquid application device
EP0753357B1 (en) Device for applying, uniformly over the width, a thin liquid film onto a web
DE1522881C3 (en) Method and apparatus for developing a latent image
DE2815624A1 (en) DRYERS FOR THE AIR DRYING OF SHEET MATERIAL
DD207131A3 (en) DEVICE FOR WET TREATMENT PHOTOGRAPHIC LAYER
EP0133304B1 (en) Device for treating a thin substrate with a fluid in a continuous flow process
DE69825334T2 (en) commitment
DE6605183U (en) DEVELOPMENT DEVICE FOR PHOTOGRAPHIC LAYER CARRIERS.

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

AK Designated contracting states

Designated state(s): AT BE CH FR GB IT NL SE

17P Request for examination filed

Effective date: 19811008

ITF It: translation for a ep patent filed

Owner name: ING. C. GREGORJ S.P.A.

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): AT BE CH FR GB IT LI NL SE

REF Corresponds to:

Ref document number: 5281

Country of ref document: AT

Date of ref document: 19831115

Kind code of ref document: T

ET Fr: translation filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19840531

Ref country code: CH

Effective date: 19840531

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

Ref country code: SE

Payment date: 19840630

Year of fee payment: 4

Ref country code: BE

Payment date: 19840630

Year of fee payment: 4

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
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Ref country code: AT

Payment date: 19860526

Year of fee payment: 6

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

Ref country code: NL

Payment date: 19870531

Year of fee payment: 7

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

Ref country code: GB

Effective date: 19880505

Ref country code: AT

Effective date: 19880505

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

Ref country code: SE

Effective date: 19880506

BERE Be: lapsed

Owner name: AGFA-GEVAERT A.G.

Effective date: 19880531

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

Ref country code: NL

Effective date: 19881201

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19890531

ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19930419

Year of fee payment: 13

EUG Se: european patent has lapsed

Ref document number: 81103366.1

Effective date: 19890510

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

Ref country code: FR

Effective date: 19950131

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST