EP0070390A1 - Drier for strips or foils of photographic films - Google Patents

Drier for strips or foils of photographic films Download PDF

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Publication number
EP0070390A1
EP0070390A1 EP82105263A EP82105263A EP0070390A1 EP 0070390 A1 EP0070390 A1 EP 0070390A1 EP 82105263 A EP82105263 A EP 82105263A EP 82105263 A EP82105263 A EP 82105263A EP 0070390 A1 EP0070390 A1 EP 0070390A1
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EP
European Patent Office
Prior art keywords
layer support
plane
parabolic mirror
transport
drying
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Granted
Application number
EP82105263A
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German (de)
French (fr)
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EP0070390B1 (en
Inventor
Franz Ertl
Adolf Fleck
Nikolaus Jelinek
Rudolf Loistl
Ernst Widemann
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Agfa Gevaert AG
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Agfa Gevaert AG
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Publication of EP0070390A1 publication Critical patent/EP0070390A1/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
    • G03D15/00—Apparatus for treating processed material
    • G03D15/02—Drying; Glazing
    • G03D15/022—Drying of filmstrips

Definitions

  • the invention relates to a device for drying tape-like or sheet-like photographic film supports, with pairs of transport rollers arranged on both sides of the transport path of the film support, a blower and a heating element in the form of a drying cell having a heating rod located in the focal point of a parabolic mirror.
  • a device of the type mentioned is known from DE-OS 23 23 725.
  • such a device is relatively expensive, since three or four heating sources are required on each side of the film in order to achieve adequate drying and to protect the material in the process, that is to say not to subject the substrate to excessive heat.
  • the object of the invention is therefore to develop a device of the type mentioned at the outset in such a way that adequate and uniform drying is possible with less expenditure on equipment.
  • the drying takes place with the aid of a heat gradient.
  • a greater radiation power is applied to the film than after a certain transport path when the film is almost dry. Due to the geometrical arrangement of the parabolic mirror, sufficient drying can thus be achieved with a single heating source per side of the substrate.
  • 1 denotes a partition between the wet area and the dry area of a developing machine.
  • the wet area running out there are two opposite pairs of transport rollers 2, 3 and 4, 5, which are driven by means not shown.
  • 2 to 5 distributor rollers 7 and 8 are arranged on the other side of the transport rollers, the lower distributor roller 7 on the two lower rollers 2 and 4 of the two transport roller pairs and the upper distributor roller 8 on the two upper rollers 3 and 5 of the transport roller pairs.
  • a passage 9 is formed in the partition 1, through which the layer support can be guided into the dry area.
  • a heating cell 10 is provided in the drying area, followed by two pairs of transport rollers 11, 12 and 13, 14 in the direction of the exit.
  • the heating cell 10 is formed symmetrically to the layer support level 6, so that only a part of the heating cell needs to be discussed in the following description.
  • an infrared heating rod 16 which is arranged transversely to the transport direction 6 and which lies at the focal point of a cylindrical parabolic mirror 15.
  • the parabolic mirror 15 is held on webs 17 and is located in a housing 18 which has an air duct 18a for fresh air on the rear side of the parabolic mirror 15 and an oblique guide web 18b on the output side of the heating cell 10, which seen in the transport direction 6 to this and the first pair of transport rollers 11, 12 is inclined.
  • a deflection wall 18c which directs the incoming fresh air tangentially onto the layer support level 6 in direct current, so that it is moved between the parabolic mirror 15 or heating element 16 and the layer support level 6 in the transport direction.
  • the plane of symmetry 19 of the parabolic mirror 15 is now inclined relative to the layer support plane 6, in such a way that the base point 20 of the solder from the focal point of the parabolic mirror to the layer support plane is closer to the input 9 of the heating cell 10 than the intersection line 21 of the plane of symmetry 19 with the Layer support level 6.
  • the leg of the parabolic mirror 15 facing the input side of the heating cell 10 is thus shorter than the other leg.
  • the angle ⁇ which the plane of symmetry 19 makes with respect to the layer support plane 6 is in a range from 60 to 80 °, preferably 70 to 75 °.
  • this arrangement of reflectors applies heating energy to a wide zone, this zone having a temperature gradient in the direction of transport of the layer support.
  • the radiation intensity is thus adapted to the decreasing water layer thickness.
  • Another advantage of the arrangement of the parabolic mirror 15 according to the invention can also be seen in the fact that the surrounding components are only slightly heated in the dry area, since the output of the heating rods 16 can be reduced overall.
  • fresh air at room temperature is introduced through the duct 18a by means of a blower (not shown), which is deflected on the curved wall 18c and thus removes the water vapor produced during drying. Due to the direct current principle of the blown air, compared to conventional air swirling, the transport rollers 2 to 5 are not noticeably heated in front of the dryer unit, thus avoiding disadvantageous, undefined predrying of the layer support material on these rollers. In addition, the blown-in air in the area of the most intensive radiation prevents overheating of the drying goods. In order to achieve a laminar flow of air, the opening formed by the webs 18b at the end of the heating cell is chosen to be sufficiently large.
  • the transport rollers 2 to 5 in front of the drying area interact with the distributor rollers 7 and 8 in such a way that the water adhering to the material to be dried is evenly distributed on the latter.
  • the distributor rollers 7 and 8 have the task, by the slight pressure on the transport rollers, of the liquid carried along on the transport rollers 2 to 5 to distribute evenly, which in turn apply the distributed liquid to the items to be dried in an evenly distributed manner.
  • the drying material prepared in this way is dried in the subsequent heating cell with the same uniformity, which prevents the formation of stains on the substrate due to water stains drying later.
  • the heating elements 16 can be connected to a so-called pulse packet control 22, with which the output of the radiator can be varied.
  • a so-called pulse packet control 22 with which the output of the radiator can be varied.
  • This has the advantage that the emission of the radiation source 16 can be adapted to the absorption behavior of the dry material. Due to different types of support 18, the liquid or water films on the support to be dried are of different thicknesses. With the aid of the pulse packet control, it is possible to adapt the wavelength of the radiation to the respective water film thickness, that is to say to provide a shorter wavelength for a thicker water film and a longer wavelength for thinner water films. This ensures that only enough energy is applied to the substrate that it is sufficient for water evaporation and prevents excessive heating of the substrate.
  • an X-ray film can be dried at a speed of 40 cm / min on a drying path of 4 cm, the output of the IR radiator being 200 to 400 watts and the delivery rate of the blowers being approximately 200 cbm / h.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Drying Of Solid Materials (AREA)
  • Photographic Processing Devices Using Wet Methods (AREA)

Abstract

Die Vorrichtung zum Trocknen von band- oder blattförmigen, fotografischen Schichtträgern weist Trocknungszellen auf, die auf beiden Seiten des Transportweges (6) des Schichtträgers zwischen Transportwalzenpaaren angeordnet sind und ein Gebläse und ein Heizelement (16) in Form eines im Brennpunkt eines Parabolspiegels (15) liegenden Heizstabes besitzen. Dabei ist die Schnittlinie (21) der Schichtträgerebene (6) mit der Symmetriebene (19) des Parabolspiegels (15) gegenüber dem Fußpunkt (20) des Lotes vom Brennpunkt des Parabolspiegels (15) auf die Schichtträgerebene (16) in Papierlaufrichtung versetzt. Vorzugsweise schließt die Symmetrieebene (19) mit der Schichtträgerebene (6) einen Winkel (α) von 60 bis 80° ein.The device for drying tape-like or sheet-like photographic layer supports has drying cells which are arranged on both sides of the transport path (6) of the layer support between pairs of transport rollers and a blower and a heating element (16) in the form of a focal point of a parabolic mirror (15) have lying heating element. The intersection line (21) of the layer support plane (6) with the plane of symmetry (19) of the parabolic mirror (15) is offset from the focal point of the parabolic mirror (15) on the layer support plane (16) in the paper running direction opposite the base point (20) of the solder. The plane of symmetry (19) preferably forms an angle (α) of 60 to 80 ° with the layer support plane (6).

Description

Die Erfindung betrifft eine Vorrichtung zum Trocknen von band- oder blattförmigen, fotografischen Schichtträgern, mit auf beiden Seiten des Transportweges des Schichtträgers zwischen Transportwalzenpaaren angeordneten, ein Gebläse und ein Heizelement in Form eines im Brennpunkt eines Parabolspiegels liegenden Heizstabes aufweisenden Trocknungszellen.The invention relates to a device for drying tape-like or sheet-like photographic film supports, with pairs of transport rollers arranged on both sides of the transport path of the film support, a blower and a heating element in the form of a drying cell having a heating rod located in the focal point of a parabolic mirror.

Eine Vorrichtung der eingangs genannten Art ist aus der DE-OS 23 23 725 bekannt. Eine solche Vorrichtung ist jedoch verhältnismäßig teuer, da drei oder vier Heizquellen auf jeder Filmseite benötigt werden, um eine ausreichende Trocknung zu erreichen und das Material dabei zu schonen, das heißt, den Schichtträger keiner allzu großen Hitze auszusetzen.A device of the type mentioned is known from DE-OS 23 23 725. However, such a device is relatively expensive, since three or four heating sources are required on each side of the film in order to achieve adequate drying and to protect the material in the process, that is to say not to subject the substrate to excessive heat.

Aufgabe der Erfindung ist es daher, eine Vorrichtung der eingangs genannten Art derart weiterzubildeh, daß eine ausreichende und gleichmäßige Trocknung mit geringerem, apparativem Aufwand möglich wird.The object of the invention is therefore to develop a device of the type mentioned at the outset in such a way that adequate and uniform drying is possible with less expenditure on equipment.

Diese Aufgabe wird durch die im Kennzeichen des Anspruchs 1 aufgeführten Mittel gelöst.This object is achieved by the means listed in the characterizing part of claim 1.

Mit der Erfindung wird erreicht, daß die Trocknung mit Hilfe eines Wärmegefälles erfolgt. Zu Beginn, wenn noch eine dickere Wasserschicht auf dem Film haftet, wird eine größere Strahlungsleistung auf den Film gegeben als nach einem gewissen Transportweg, wenn der Film schon nahezu trocken ist. Durch die geometrische Anordnung des Parabolspiegels kann somit mit einer einzigen Heizquelle pro Schichtträgerseite eine ausreichende Trocknung erzielt werden.With the invention it is achieved that the drying takes place with the aid of a heat gradient. At the beginning, when a thicker layer of water adheres to the film, a greater radiation power is applied to the film than after a certain transport path when the film is almost dry. Due to the geometrical arrangement of the parabolic mirror, sufficient drying can thus be achieved with a single heating source per side of the substrate.

Weitere Einzelheiten und Vorteile der Erfindung ergeben sich aus den Unteransprüchen im Zusammenhang mit der Beschreibung eines Ausführungsbeispieles, das anhand einer Figur eingehend erläutert ist. Es zeigt die einzige Figur eine schematische Ansicht im Querschnitt durch die erfindungsgemäße Vorrichtung.Further details and advantages of the invention emerge from the subclaims in connection with the description of an exemplary embodiment, which is explained in detail with reference to a figure. The single figure shows a schematic view in cross section through the device according to the invention.

In der Figur ist mit 1 eine Trennwand zwischen dem Naßbereich und dem Trockenbereich einer Entwicklungsmaschine bezeichnet. Im auslaufenden Naßbereich befinden sich zwei gegenüberliegende Transportwalzenpaare 2, 3 und 4, 5, welche durch nicht dargestellte Mittel angetrieben sind. Bezogen auf die Transportebene 6 für den Schichtträger sind auf der anderen Seite der Transportwalzen 2 bis 5 Verteilerwalzen 7 und 8 angeordnet, wobei die untere Verteilerwalze 7 an den beiden unteren Walzen 2 und 4 der beiden Transportwalzenpaare und die obere Verteilerwalze 8 an den beiden oberen Walzen 3 und 5 der Transportwalzenpaare anliegt.In the figure, 1 denotes a partition between the wet area and the dry area of a developing machine. In the wet area running out there are two opposite pairs of transport rollers 2, 3 and 4, 5, which are driven by means not shown. Relative to the transport plane 6 for the layer support, 2 to 5 distributor rollers 7 and 8 are arranged on the other side of the transport rollers, the lower distributor roller 7 on the two lower rollers 2 and 4 of the two transport roller pairs and the upper distributor roller 8 on the two upper rollers 3 and 5 of the transport roller pairs.

In der Trennwand 1 ist eine Durchführung 9 ausgeformt, durch welche der Schichtträger in den Trockenbereich geführt werden kann. In dem Trockenbereich ist eine Heizzelle 10 vorgesehen, der in Richtung Ausgang zwei Transportwalzenpaare 11, 12 und 13, 14 folgen.A passage 9 is formed in the partition 1, through which the layer support can be guided into the dry area. A heating cell 10 is provided in the drying area, followed by two pairs of transport rollers 11, 12 and 13, 14 in the direction of the exit.

Die Heizzelle 10 ist symmetrisch zur Schichtträgerebene 6 ausgebildet, so daß in der nun folgenden Beschreibung nur auf einen Teil der Heizzelle eingegangen zu werden braucht. In der Heizzelle 10 ist ein quer zur Transportrichtung 6 angeordneter Infrarot-Heizstab 16 vorgesehen, der im Brennpunkt eines zylindrischen Parabolspiegels 15 liegt. Der Parabolspiegel 15 ist an Stegen 17 gehaltert und befindet sich in einem Gehäuse 18, das an der Rückseite des Parabolspiegels 15 ein Luftkanal 18a für Frischluft und an der Ausgangsseite der Heizzelle 10 einen schräg verlaufenden Führungssteg 18b aufweist, welcher in Transportrichtung 6 gesehen zu dieser und dem ersten Transportwalzenpaar 11, 12 hin geneigt ist. In dem Gehäuse 18 ist außerdem eine Umlenkwand 18c vorgesehen, welche die eintretende Frischluft tangential auf die Schichtträgerebene 6 im Gleichstrom richtet, so daß diese zwischen Parabolspiegel 15 bzw. Heizstab 16 und der Schichtträgerebene 6 in Transportrichtung bewegt wird.The heating cell 10 is formed symmetrically to the layer support level 6, so that only a part of the heating cell needs to be discussed in the following description. Provided in the heating cell 10 is an infrared heating rod 16 which is arranged transversely to the transport direction 6 and which lies at the focal point of a cylindrical parabolic mirror 15. The parabolic mirror 15 is held on webs 17 and is located in a housing 18 which has an air duct 18a for fresh air on the rear side of the parabolic mirror 15 and an oblique guide web 18b on the output side of the heating cell 10, which seen in the transport direction 6 to this and the first pair of transport rollers 11, 12 is inclined. In the housing 18 there is also a deflection wall 18c which directs the incoming fresh air tangentially onto the layer support level 6 in direct current, so that it is moved between the parabolic mirror 15 or heating element 16 and the layer support level 6 in the transport direction.

Erfindungsgemäß ist nun die Symmetrieebene 19 des Parabolspiegels 15 gegenüber der Schichtträgerebene 6 geneigt, und zwar derart, daß der Fußpunkt 20 des Lotes vom Brennpunkt des Parabolspiegels auf die Schichtträgerebene näher am Eingang 9 der Heizzelle 10 liegt, als die Schnittlinie 21 der Symmetrieebene 19 mit der Schichtträgerebene 6. Damit ist der zur Eingangsseite der Heizzelle 10 weisende Schenkel des Parabolspiegels 15 kürzer als der andere Schenkel ausgebildet. Der Winkel α, den die Symmetrieebene 19 gegenüber der Schichtträgerebene 6 einnimmt, liegt dabei in einem Bereich von 60 bis 80°, vorzugsweise 70 bis 75°.According to the invention, the plane of symmetry 19 of the parabolic mirror 15 is now inclined relative to the layer support plane 6, in such a way that the base point 20 of the solder from the focal point of the parabolic mirror to the layer support plane is closer to the input 9 of the heating cell 10 than the intersection line 21 of the plane of symmetry 19 with the Layer support level 6. The leg of the parabolic mirror 15 facing the input side of the heating cell 10 is thus shorter than the other leg. The angle α which the plane of symmetry 19 makes with respect to the layer support plane 6 is in a range from 60 to 80 °, preferably 70 to 75 °.

Im Betrieb wird mit dieser Anordnung der Reflektoren eine breite Zone mit Heizenergie beaufschlagt, wobei diese Zone ein Temperaturgefälle in Transportrichtung des Schichtträgers aufweist. Damit wird die Strahlungsintensität der abnehmenden Wasserschichtdicke angepaßt.In operation, this arrangement of reflectors applies heating energy to a wide zone, this zone having a temperature gradient in the direction of transport of the layer support. The radiation intensity is thus adapted to the decreasing water layer thickness.

Ein weiterer Vorteil der erfindungsgemäßen Anordnung der Parabolspiegel 15 ist auch darin zu sehen, daß die umliegenden Bauteile im Trockenbereich nur geringfügig erwärmt werden, da die Leistung der Heizstäbe 16 insgesamt erniedrigt werden kann.Another advantage of the arrangement of the parabolic mirror 15 according to the invention can also be seen in the fact that the surrounding components are only slightly heated in the dry area, since the output of the heating rods 16 can be reduced overall.

Wie oben bereits erwähnt, wird durch den Kanal 18a Frischluft mit Raumtemperatur mittels eines nicht dargestellten Gebläses eingeleitet, welche an der gekrümmten Wand 18c umgelenkt wird und somit den beim Trocknen entstehenden Wasserdampf abführt. Durch das Gleichstromprinzip der eingeblasenen Luft wird gegenüber der herkömmlichen Luftverwirbelung erreicht, daß die Transportwalzen 2 bis 5 vor der Trocknereinheit nicht merklich erwärmt werden und somit eine nachteilige, undefinierte Vortrocknung des Schichtträgermaterials an diesen Walzen vermieden ist. Im übrigen verhindert die eingeblasene Luft im Bereich der intensivsten Bestrahlung eine Überhitzung des Trocknungsgutes. Um eine laminare Strömung der Luft zu erreichen, wird die durch die Stege 18b gebildete Öffnung am Ende der Heizzelle ausreichend groß gewählt.As already mentioned above, fresh air at room temperature is introduced through the duct 18a by means of a blower (not shown), which is deflected on the curved wall 18c and thus removes the water vapor produced during drying. Due to the direct current principle of the blown air, compared to conventional air swirling, the transport rollers 2 to 5 are not noticeably heated in front of the dryer unit, thus avoiding disadvantageous, undefined predrying of the layer support material on these rollers. In addition, the blown-in air in the area of the most intensive radiation prevents overheating of the drying goods. In order to achieve a laminar flow of air, the opening formed by the webs 18b at the end of the heating cell is chosen to be sufficiently large.

Die Transportwalzen 2 bis 5 vor dem Trockenbereich wirken mit den Verteilerwalzen 7 bzw. 8 derart zusammen, daß das auf dem Trocknungsgut haftende Wasser gleichmäßig auf diesem verteilt wird. Die Verteilerwalzen 7 und 8 haben dabei die Aufgabe, durch den leichten Andruck an den Transportwalzen die mitgeführte Flüssigkeit auf den Transportwalzen 2 bis 5 gleichmäßig zu verteilen, welche wiederum die verteilte Flüssigkeit auf das Trocknungsgut in gleichmäßig verteilter Weise auftragen. Das so vorbereitete Trocknungsgut wird in der sich anschließenden Heizzelle mit der gleichen Gleichmäßigkeit getrocknet, womit eine Fleckenbildung auf dem Schichtträger durch später abtrocknende Wasserflecken vermieden ist.The transport rollers 2 to 5 in front of the drying area interact with the distributor rollers 7 and 8 in such a way that the water adhering to the material to be dried is evenly distributed on the latter. The distributor rollers 7 and 8 have the task, by the slight pressure on the transport rollers, of the liquid carried along on the transport rollers 2 to 5 to distribute evenly, which in turn apply the distributed liquid to the items to be dried in an evenly distributed manner. The drying material prepared in this way is dried in the subsequent heating cell with the same uniformity, which prevents the formation of stains on the substrate due to water stains drying later.

In einer Ausgestaltung der Erfindung können die Heizstäbe 16 mit einer sog. Impulspaketsteuerung 22 verbunden sein, mit welcher die Leistung des Strahlers variiert werden kann. Dies hat den Vorteil, daß die Emission der Strahlungsquelle 16 auf das Absorptionsverhalten des Trockengutes angepaßt werden kann. Durch unterschiedliche Schichtträgerarten 18 sind auch die Flüssigkeits- bzw. Wasserfilme auf dem zu trocknenden Schichtträger unterschiedlich dick. Mit Hilfe der Impulspaketsteuerung ist es möglich, die Wellenlänge der Strahlung der jeweiligen Wasserfilmdicke anzupassen, das heißt, für einen dickeren Wasserfilm eine kürzere Wellenlänge und für dünnere Wasserfilme eine längere Wellenlänge vorzusehen. Damit wird erreicht, daß nur soviel Energie auf den Schichtträger gebracht wird, daß diese für die Wasserverdampfung ausreicht und eine zu starke Erwärmung des Trägermaterials verhindert.In one embodiment of the invention, the heating elements 16 can be connected to a so-called pulse packet control 22, with which the output of the radiator can be varied. This has the advantage that the emission of the radiation source 16 can be adapted to the absorption behavior of the dry material. Due to different types of support 18, the liquid or water films on the support to be dried are of different thicknesses. With the aid of the pulse packet control, it is possible to adapt the wavelength of the radiation to the respective water film thickness, that is to say to provide a shorter wavelength for a thicker water film and a longer wavelength for thinner water films. This ensures that only enough energy is applied to the substrate that it is sufficient for water evaporation and prevents excessive heating of the substrate.

Mit der beschriebenen Vorrichtung kann beispielsweise ein Röntgenfilm mit einer Geschwindigkeit von 40 cm/min auf einer Trocknungsstrecke von 4 cm getrocknet werden, wobei die Leistung des IR-Strahlers 200 bis 400 Watt und die Förderleistung der Gebläse etwa 200 cbm/h beträgt.With the device described, for example, an X-ray film can be dried at a speed of 40 cm / min on a drying path of 4 cm, the output of the IR radiator being 200 to 400 watts and the delivery rate of the blowers being approximately 200 cbm / h.

Claims (5)

1. Vorrichtung zum Trocknen von band- oder blattförmigen, fotografischen Schichtträgern, mit auf beiden Seiten des Transportweges des Schichtträgers zwischen Transportwalzenpaaren angeordneten, ein Gebläse und ein Heizelement in Form eines im Brennpunkt eines Parabolspiegels liegenden Heizstabes aufweisenden Trocknungszellen, dadurch gekennzeichnet, daß die Schnittlinie (21) der Schichtträgerebene (6) mit der Symmetrieebene (19) des Parabolspiegels (15) gegenüber dem Fußpunkt (20) des Lotes vom Brennpunkt des Parabolspiegels (15) auf die Schichtträgerebene (6) in Papierlaufrichtung versetzt ist.1.Device for drying tape-like or sheet-like photographic layers, with arranged on both sides of the transport path of the layer between pairs of transport rollers, a blower and a heating element in the form of a heating element lying in the focal point of a parabolic mirror, characterized in that the cutting line ( 21) of the layer support plane (6) with the plane of symmetry (19) of the parabolic mirror (15) opposite the base point (20) of the solder from the focal point of the parabolic mirror (15) to the layer support plane (6) in the paper running direction. 2. Vorrichtung nach Anspruch l, dadurch gekennzeichnet, daß die Symmetrieebene (19) mit der Schichtträgerebene (6) einen Winkel (0( ) von 60 bis 80°, vorzugsweise 70 bis 750, einschließt.2. Device according to claim l, characterized in that the plane of symmetry (19) with the layer support plane (6) an angle (0 () of 60 to 80 °, preferably 70 to 75 0 , includes. 3. Vorrichtung nach Anspruch 1 oder 2, gekennzeichnet durch Umlenkelemente (18c), welche die von dem Gebläse kommende Frischluft tangential auf die Schichtträgerebene (6) in Transportrichtung des Schichtträgers richten.3. Apparatus according to claim 1 or 2, characterized by deflecting elements (18c) which direct the fresh air coming from the fan tangentially onto the layer support level (6) in the transport direction of the layer support. 4. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Heizstäbe (16) mit jeweils einer die Leistung und damit die Wellenlänge des Heizstabes variierenden Impulspaketsteuerung (22) in Verbindung stehen.4. Device according to one of claims 1 to 3, characterized in that the heating rods (16) with a respective the power and thus the wavelength of the heating rod varying pulse packet control (22) are connected. 5. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß von den vor den Trocknungszellen (10) liegenden Transportwalzenpaaren (2, 3; 4, 5) die oberen Walzen (3, 5) an einer ersten Verteilerwalze (6) und die unteren Walzen (2, 4) an einer zweiten Verteilerwalze (7) anliegen.5. Device according to one of claims 1 to 4, characterized in that of the pairs of transport rollers lying in front of the drying cells (10) (2, 3; 4, 5), the upper rollers (3, 5) on a first distributor roller (6) and the lower rollers (2, 4) rest on a second distributor roller (7).
EP82105263A 1981-06-24 1982-06-16 Drier for strips or foils of photographic films Expired EP0070390B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3124688A DE3124688C2 (en) 1981-06-24 1981-06-24 Device for drying tape-shaped or sheet-shaped photographic substrates
DE3124688 1981-06-24

Publications (2)

Publication Number Publication Date
EP0070390A1 true EP0070390A1 (en) 1983-01-26
EP0070390B1 EP0070390B1 (en) 1986-01-22

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EP82105263A Expired EP0070390B1 (en) 1981-06-24 1982-06-16 Drier for strips or foils of photographic films

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US (1) US4485565A (en)
EP (1) EP0070390B1 (en)
JP (1) JPS57212443A (en)
DE (1) DE3124688C2 (en)
DK (1) DK155239C (en)

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EP0557845A1 (en) * 1992-02-27 1993-09-01 Agfa-Gevaert AG Drying method and apparatus for tape-like or sheet-like photographic film supports

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JPH071632Y2 (en) * 1987-08-06 1995-01-18 富士写真フイルム株式会社 Dryer
US5158846A (en) * 1990-10-29 1992-10-27 Olin Corporation Electrostatic color printing system utilizing an image transfer belt
US5216820A (en) * 1991-09-25 1993-06-08 M & R Printing Equipment, Inc. Curing unit and method of curing ink
US6058621A (en) * 1998-06-05 2000-05-09 Eastman Kodak Company Apparatus and method for drying photosensitive material using radiant heat and air flow passages
US6401360B1 (en) 2000-04-13 2002-06-11 Eastman Kodak Company Apparatus and method for drying photosensitive material using a radiant heat assembly
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Also Published As

Publication number Publication date
JPH0145910B2 (en) 1989-10-05
EP0070390B1 (en) 1986-01-22
DK155239C (en) 1989-09-18
DK275882A (en) 1982-12-25
US4485565A (en) 1984-12-04
DE3124688A1 (en) 1983-01-13
JPS57212443A (en) 1982-12-27
DE3124688C2 (en) 1983-12-08
DK155239B (en) 1989-03-06

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