EP0599147B1 - Apparatus and method for rapid washing of photographic material - Google Patents
Apparatus and method for rapid washing of photographic material Download PDFInfo
- Publication number
- EP0599147B1 EP0599147B1 EP93118279A EP93118279A EP0599147B1 EP 0599147 B1 EP0599147 B1 EP 0599147B1 EP 93118279 A EP93118279 A EP 93118279A EP 93118279 A EP93118279 A EP 93118279A EP 0599147 B1 EP0599147 B1 EP 0599147B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rollers
- roller
- roller pair
- water
- photographic material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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
- G03D3/00—Liquid processing apparatus involving immersion; Washing apparatus involving immersion
- G03D3/02—Details of liquid circulation
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
- G03C7/30—Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials
- G03C7/3046—Processing baths not provided for elsewhere, e.g. final or intermediate washings
-
- 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 continuous watering photographic Materials from at least one tank filled with a liquid and two Rows of stacked pairs of rollers above the liquid level of the Tanks.
- the photographic material goes through as part of the photographic processing (Films / papers) a multi-stage process e.g. Developing, watering, bleaching, watering, Fixing, watering, stabilizing, drying or developing, fixing, watering, Dry.
- a multi-stage process e.g. Developing, watering, bleaching, watering, Fixing, watering, stabilizing, drying or developing, fixing, watering, Dry.
- wipers are also used before and after the individual processing stages used to reduce the carryover of the solutions. Used are used for the stated purposes e.g. Rubber lips covering the photo material on one side or wipe on both sides.
- Rubber lips have the disadvantage that they are used for a long time certain material width at the edges are more worn than in the middle and therefore when changing the format no longer evenly over the entire Material width. Therefore they have to be renewed frequently.
- So-called squeeze rollers are also often used in photographic technology applied, through which the photographic material is passed under pressure. Thereby the liquid adhering to the surface is removed to some extent. Liquid and Chemicals that are in the gelatin layers of the photographic material will so not removed. The effect of such a pair of rollers is therefore insufficient.
- JP-A-62 240 970 is a photographic watering device Materials known to be two above the liquid level of the washing tank vertical rows of pairs of rollers are arranged, one of which is made of material descending and the other ascending and the one above both Rows a liquid supply is provided.
- Washings between individual process stages or before drying to remove adhering chemicals take a long time and require a large amount of water, even if the aids specified above be applied.
- the object of the present invention is to provide a device with which the watering is accelerated without excessive consumption of water.
- the material can be immersed in the water in the washing tank can also be guided over pulleys that are above the bath level are located.
- each pair of rollers are preferably set parallel to the horizontal.
- At least one roller of at least one pair of rollers is preferably driven; in particular, all pairs of rollers are driven.
- the surface of at least one roller of each pair of rollers is preferably made of one elastic material, preferably rubber.
- the other role can also be from an elastic material, but also e.g. made of stainless steel or hard plastic.
- the water supply is at the highest point of the second highest pair of rollers in the series of pairs of rollers, which the photographic material passes through in ascending order.
- the photographic material that after leaving the tank between the rollers of each pair of rollers is passed through in ascending order with a small amount of water be applied so that a cascade irrigation with the smallest amounts confined space is realized.
- the device of pairs of rollers arranged one above the other can be provided several times be, also with respect to a tank several times, the applied water in the Countercurrent to the photographic material and if necessary through baffles or guided tours there.
- the pairs of rollers that the material goes through in descending order are preferred Embodiment all individually charged with water.
- the water can either be applied directly to the photo material or indirectly through Moistening the rolls, e.g. with a damp sponge, applied to the photo material will.
- the device preferably further contains means by which the water from the Pairs of rollers that the material goes through in ascending order when it is separated from the photo material is removed again, is led into the previous treatment stage.
- FIG. 1 A device according to the prior art is shown in Fig. 2.
- (1) represents a washing tank within a photographic processing apparatus represents, whose water level is designated with (2).
- With (5) is the photographic material with its direction of rotation indicated by an arrow, with (6) denotes a device part, with the washing water on the pairs of rollers is applied.
- the wash water can be on one side or on both sides of the photographic material is applied, runs in the row 3a around the outside Roll around before it comes to the next pair of rolls until it finally gets into the Tank (1) drips.
- (7) identifies a device that is used for setting the Pressure between the two rollers of the pair of rollers ensures.
- With (8) are common Designated pulleys. In the row (3), each pair of rollers is supplied with fresh water applied: The water is then drained off and e.g. not one shown tank supplied.
- the washing tank (1) shown in Fig. 2 with the water level (2) through which the photographic material (5) is guided only has the usual deflection rollers (8) on.
- pairs of rollers are preferably used in each row provided, the width of which is matched to the photographic material to be processed is.
- the roll diameter is not critical; for space reasons you will Choose a diameter between 1 and 10 cm.
- the pressure of the roller pairs is, for example, by tension springs around both Axes of the rollers are set.
- Another object of the invention is a rinsing process for a photographic Material that was previously treated with a chemical solution, such as a development, Bleaching, fixing or bleach-fixing bath was treated, according to claim 2nd
- the water is preferably directed into the bath that the material is just leaving Has.
- a commercial color paper goes through a bleaching bath with the following chemical composition after development and washing: Ammonium iron EDTA 35 g / l Ammonium bromide 70 g / l.
- the cleaning effect of the washing tank 1 was determined by analyzing the NH 4 Br concentration in the washing tank 2. At this time it contains 4.1 g NH 4 Br / l.
- Example 2 The procedure was as in Example 1, but there was a row at washing tank 1 with 4 superposed, driven roller pairs mounted and the water even drained from the tank. The color paper runs through the roller pairs Leaving the tank.
- the pressure with which the 4 pairs of rollers touched was approximately 700 p / cm 2 .
- Example 2 The procedure was as in Example 2, but 4 additional pairs of rollers were installed one above the other at the inlet into tank 1, which passes through the material in descending order and which also touched at a pressure of approx. 700 p / cm 2 .
- the device contained: 4 humidification points a 25 ml / m 2 on all pairs of rollers of the descending part 1 humidification point a 50 ml / m 2 on the second uppermost pair of rollers of the rising part.
- the preferred embodiment again increases the cleaning effect found by a factor of 4.
- a commercial color paper goes through a fixing bath of the following composition: Sodium thiosulfate 120 g / l Sodium sulfite 10 g / l.
- Example 3 The procedure was as in Example 4, but in the washing tank I were accordingly Example 3 two rows, each with 4 driven motors arranged one above the other Pairs of rollers mounted and the water drained from the tank itself.
- tank I was closed and instead 20 ml / m 2 of water were applied to all pairs of rollers of the descending part and 40 ml / m 2 of water to the second uppermost pair of rollers of the ascending part.
- the pressure with which the 4 pairs of rollers in the row that the material passes through after the bath touched was approximately 700 p / cm 2 .
- the examples show that with small amounts of water when using the invention Device is very effective watering. Becomes a watering result regarded as sufficient according to Example 1, the rinsing time can be significantly shortened, e.g. from 90 s in Example 1 to 25 s.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Photographic Processing Devices Using Wet Methods (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Description
Die Erfindung betrifft eine Vorrichtung zur kontinuierlichen Wässerung fotografischer Materialien aus wenigstens einem mit einer Flüssigkeit gefüllten Tank und zwei Reihen übereinander angeordneter Rollenpaare über dem Flüssigkeitsniveau des Tanks.The invention relates to a device for continuous watering photographic Materials from at least one tank filled with a liquid and two Rows of stacked pairs of rollers above the liquid level of the Tanks.
Im Rahmen der fotografischen Verarbeitung durchläuft das Fotomaterial (Filme/Papiere) einen mehrstufigen Prozess z.B. Entwickeln, Wässern, Bleichen, Wässern, Fixieren, Wässern, Stabilisieren, Trocknen oder Entwickeln, Fixieren, Wässern, Trocknen.The photographic material goes through as part of the photographic processing (Films / papers) a multi-stage process e.g. Developing, watering, bleaching, watering, Fixing, watering, stabilizing, drying or developing, fixing, watering, Dry.
Um das am Fotomaterial anhaftende Wasser vor der Trocknung möglichst weitgehend zu entfernen, wurden dort zuerst sogenannte "Abstreifer" eingesetzt. Dadurch wird der Trocknungsvorgang beschleunigt und Energie erspart, die sonst notwendig wäre, um das anhaftende Wasser zu verdampfen.To the extent possible the water adhering to the photo material before drying To remove, so-called "wipers" were first used there. This will the drying process accelerates and saves energy that would otherwise be necessary to evaporate the adhering water.
Mitunter werden diese Abstreifer auch vor und nach den einzelnen Verarbeitungsstufen eingesetzt, um die Verschleppung der Lösungen zu vermindern. Verwendet werden zu den genannten Zwecken z.B. Gummilippen, die das Fotomaterial einseitig oder beidseitig abstreifen.Sometimes these wipers are also used before and after the individual processing stages used to reduce the carryover of the solutions. Used are used for the stated purposes e.g. Rubber lips covering the photo material on one side or wipe on both sides.
Auch sind Vorrichtungen bekannt, mit denen durch Druckluft die oberflächlich anhaftende Flüssigkeit abgeblasen wird. Eine weitere Methode ist die Vakuum-Absaugung.Devices are also known with which the surface adhering by compressed air Liquid is blown off. Another method is vacuum suction.
Während die Erzeugung von Vakuum technisch relativ aufwendig ist, hat die einfache Anwendung von Druckluft den Nachteil, daß die chemischen Lösungen fein zerstäubt an Stellen hingelangen, wo nach Verdunsten der Flüssigkeit störende Kristall-Rückstände verbleiben.While the generation of vacuum is technically relatively complex, the simple one Use of compressed air has the disadvantage that the chemical solutions are atomized in places where, after the liquid has evaporated, annoying crystal residues remain.
Gummilippen haben wiederum den Nachteil, daß sie bei längerer Benutzung mit einer bestimmten Materialbreite an den Rändern stärker abgenutzt werden als in der Mitte und deswegen beim Wechsel des Formats nicht mehr gleichmäßig über die gesamte Materialbreite wirken. Sie müssen deswegen häufig erneuert werden.Rubber lips have the disadvantage that they are used for a long time certain material width at the edges are more worn than in the middle and therefore when changing the format no longer evenly over the entire Material width. Therefore they have to be renewed frequently.
Auch werden in der fotografischen Technik häufig sogenannte Abquetsch-Walzen angewendet, durch die das Fotomaterial unter Druck hindurchgeführt wird. Dadurch wird die oberflächlich anhaftende Flüssigkeit einigermaßen entfernt. Flüssigkeit und Chemikalien, die sich in den Gelatine-Schichten des Fotomaterials befinden, werden so nicht entfernt. Der Effekt eines solchen Walzenpaares ist demnach unzureichend.So-called squeeze rollers are also often used in photographic technology applied, through which the photographic material is passed under pressure. Thereby the liquid adhering to the surface is removed to some extent. Liquid and Chemicals that are in the gelatin layers of the photographic material will so not removed. The effect of such a pair of rollers is therefore insufficient.
Schließlich ist aus JP-A-62 240 970 eine Vorrichtung zum Wässern fotografischer Materialien bekannt, bei der über dem Flüssigkeitsniveau des Wässerungstanks zwei senkrechte Reihen von Rollenpaaren angeordnet sind, von denen eine vom Material absteigend und die andere aufsteigend durchlaufen wird und bei der oberhalb beider Reihen je eine Flüssigkeitszufuhr vorgesehen ist.Finally, JP-A-62 240 970 is a photographic watering device Materials known to be two above the liquid level of the washing tank vertical rows of pairs of rollers are arranged, one of which is made of material descending and the other ascending and the one above both Rows a liquid supply is provided.
Wässerungen, die zwischen einzelnen Verfahrensstufen oder vor der Trocknung durchgeführt werden, um anhaftende Chemikalien zu entfernen, dauern lange und benötigen eine große Menge Wasser, auch wenn die vorstehend angegebenen Hilfsmittel angewendet werden.Washings between individual process stages or before drying to remove adhering chemicals take a long time and require a large amount of water, even if the aids specified above be applied.
Aufgabe der vorliegenden Erfindung ist die Bereitstellung einer Vorrichtung, mit der die Wässerung beschleunigt wird, ohne daß übermäßig viel Wasser verbraucht wird.The object of the present invention is to provide a device with which the watering is accelerated without excessive consumption of water.
Diese Aufgabe wird mit einer Vorrichtung gemäß Patentanspruch 1 bzw. mit einem Verfahren gemäß Anspruch 2 gelöst.This object is achieved with a device according to
Dabei kann das Material in das im Wässerungstank befindliche Wasser eintauchen, es kann aber auch über Umlenkrollen geführt werden, die sich oberhalb des Badniveaus befinden.The material can be immersed in the water in the washing tank can also be guided over pulleys that are above the bath level are located.
Vorzugsweise sind die Achsen jedes Rollenpaares parallel zur Horizontalen eingestellt. The axes of each pair of rollers are preferably set parallel to the horizontal.
Bevorzugt erfüllen wenigstens 50 % der Rollenpaare, insbesondere alle Rollenpaare die vorstehende Druckbedingung.Preferably at least 50% of the pairs of roles, in particular all pairs of roles the above printing condition.
Vorzugsweise ist wenigstens eine Rolle wenigstens eines Rollenpaares angetrieben; insbesondere sind alle Rollenpaare angetrieben.At least one roller of at least one pair of rollers is preferably driven; in particular, all pairs of rollers are driven.
Die Oberfläche wenigstens einer Rolle jedes Rollenpaares ist bevorzugt aus einem elastischen Material, vorzugsweise aus Gummi. Die andere Rolle kann ebenfalls aus einem elastischen Material, aber auch z.B. aus Edelstahl oder Hartplastik sein.The surface of at least one roller of each pair of rollers is preferably made of one elastic material, preferably rubber. The other role can also be from an elastic material, but also e.g. made of stainless steel or hard plastic.
In einer bevorzugten Ausführungsform der Vorrichtung ist die Wasserzufuhr an der höchsten Stelle des am zweithöchsten angebrachten Rollenpaares der Reihe von Rollenpaaren, die das fotografische Material aufsteigend durchläuft, vorgesehen. Das fotografische Material, das nach Verlassen des Tanks zwischen den Rollen jedes Rollenpaares aufsteigend hindurchgeführt wird, kann so mit einer geringen Menge Wasser beaufschlagt werden, so daß eine Kaskadenwässerung mit geringsten Mengen auf engstem Raum realisiert wird.In a preferred embodiment of the device, the water supply is at the highest point of the second highest pair of rollers in the series of pairs of rollers, which the photographic material passes through in ascending order. The photographic material that after leaving the tank between the rollers of each pair of rollers is passed through in ascending order with a small amount of water be applied so that a cascade irrigation with the smallest amounts confined space is realized.
Die Vorrichtung übereinander angeordneter Rollenpaare kann mehrfach vorgesehen sein, auch bezüglich eines Tanks mehrfach, wobei das aufgetragene Wasser im Gegenstrom zum fotografischen Material geführt und gegebenenfalls durch Leitbleche oder Führungen dorthin geleitet wird.The device of pairs of rollers arranged one above the other can be provided several times be, also with respect to a tank several times, the applied water in the Countercurrent to the photographic material and if necessary through baffles or guided tours there.
Die Rollenpaare, die das Material absteigend durchläuft, werden in einer bevorzugten Ausführungsform alle individuell mit Wasser beaufschlagt.The pairs of rollers that the material goes through in descending order are preferred Embodiment all individually charged with water.
Das Wasser kann entweder direkt an das Fotomaterial angetragen oder indirekt durch Befeuchten der Rollen, z.B. mit einem feuchten Schwamm, an das Fotomaterial angetragen werden.The water can either be applied directly to the photo material or indirectly through Moistening the rolls, e.g. with a damp sponge, applied to the photo material will.
Die Vorrichtung enthält weiterhin vorzugsweise Mittel, mit denen das Wasser von den Rollenpaaren, die das Material aufsteigend durchläuft, wenn es vom Fotomaterial wieder entfernt wird, in die vorangehende Behandlungsstufe geleitet wird. The device preferably further contains means by which the water from the Pairs of rollers that the material goes through in ascending order when it is separated from the photo material is removed again, is led into the previous treatment stage.
Die erfindungsgemäße Vorrichtung wird in der Figur 1 näher beschrieben. Eine Vorrichtung nach Stand der Technik wird in Fig. 2 gezeigt.The device according to the invention is described in more detail in FIG. A device according to the prior art is shown in Fig. 2.
In Fig. 1 stellt (1) einen Wässerungstank innerhalb einer fotografischen Verarbeitungsapparatur dar, dessen Wasserniveau mit (2) bezeichnet ist. An einem Gerüst (nicht gezeigt) sind übereinander 2 Reihen (3) und (3a) von Rollenpaaren (4) angebracht, von denen jeweils eine mit einem Antrieb (nicht gezeigt) versehen ist. Mit (5) ist das fotografische Material mit seiner durch einen Pfeil angegebenen Laufrichtung, mit (6) ein Vorrichtungsteil bezeichnet, mit dem Waschwasser auf die Rollenpaare aufgebracht wird. Das Waschwasser kann auf eine Seite oder auf beide Seiten des fotografischen Materials aufgetragen werden, läuft bei der Reihe 3a außen um die Rollen herum, bevor es auf das nächste Rollenpaar kommt, bis es schließlich in den Tank (1) tropft. (7) kennzeichnet eine Vorrichtung, die für die Einstellung des Druckes zwischen den beiden Rollen des Rollenpaares sorgt. Mit (8) sind übliche Umlenkrollen bezeichnet. Bei der Reihe (3) wird jedes Rollenpaar mit frischem Wasser beaufschlagt: Das Wasser wird dann jeweils abgeleitet und z.B. einem nicht gezeigten Tank zugeführt.In Fig. 1, (1) represents a washing tank within a photographic processing apparatus represents, whose water level is designated with (2). On a scaffold (not shown) 2 rows (3) and (3a) of pairs of rollers (4) are attached one above the other, one of which is provided with a drive (not shown). With (5) is the photographic material with its direction of rotation indicated by an arrow, with (6) denotes a device part, with the washing water on the pairs of rollers is applied. The wash water can be on one side or on both sides of the photographic material is applied, runs in the row 3a around the outside Roll around before it comes to the next pair of rolls until it finally gets into the Tank (1) drips. (7) identifies a device that is used for setting the Pressure between the two rollers of the pair of rollers ensures. With (8) are common Designated pulleys. In the row (3), each pair of rollers is supplied with fresh water applied: The water is then drained off and e.g. not one shown tank supplied.
Der in Fig. 2 dargestellte Wässerungstank (1) mit dem Wasserniveau (2), durch den das fotografische Material (5) geführt wird, weist nur die üblichen Umlenkrollen (8) auf.The washing tank (1) shown in Fig. 2 with the water level (2) through which the photographic material (5) is guided only has the usual deflection rollers (8) on.
Vorzugsweise werden pro Tank in jeder Reihe 2 bis 20, insbesondere 3 bis 15 Rollenpaare vorgesehen, deren Breite auf das zu verarbeitende fotografische Material abgestimmt ist. Der Rollendurchmesser ist unkritisch; aus Platzgründen wird man Durchmesser zwischen 1 und 10 cm wählen.2 to 20, in particular 3 to 15, pairs of rollers are preferably used in each row provided, the width of which is matched to the photographic material to be processed is. The roll diameter is not critical; for space reasons you will Choose a diameter between 1 and 10 cm.
Der Andruck der Rollenpaare wird beispielsweise durch Zugfedern, die um beide Achsen der Rollen geführt sind, eingestellt.The pressure of the roller pairs is, for example, by tension springs around both Axes of the rollers are set.
Ein weiterer Gegenstand der Erfindung ist ein Wässerungsverfahren für ein fotografisches Material, das zuvor mit einer Chemikalienlösung, beispielsweise einem Entwicklungs-, Bleich-, Fixier- oder Bleichfixierbad behandelt wurde, gemäß Patentanspruch 2.Another object of the invention is a rinsing process for a photographic Material that was previously treated with a chemical solution, such as a development, Bleaching, fixing or bleach-fixing bath was treated, according to claim 2nd
Das Wasser wird vorzugsweise in das Bad geleitet, das das Material gerade verlassen hat. The water is preferably directed into the bath that the material is just leaving Has.
Ein handelsübliches Colorpapier durchläuft nach der Entwicklung und der Wässerung
ein Bleichbad mit der folgenden chemischen Zusammensetzung:
Dem Bleichbad nachgeschaltet sind zwei Wässerungstanks mit je 8,5 Litern Tankvolumen.
- Wässerungstank 1 -
- direkt nach dem Bleichbad wird mit 150 ml/m2 Frischwasser regeneriert.
- Wässerungstank 2 -
- enthält stehendes Wasser - ohne Frischwasserzuführung.
- Washing tank 1 -
- immediately after the bleach bath, 150 ml / m 2 of fresh water is regenerated.
- Washing tank 2 -
- contains standing water - without fresh water supply.
Nach Verarbeitung von 100 m2 Colorpapier wurde die Reinigungswirkung des Wässerungstanks
1 durch Analyse der NH4Br-Konzentration im Wässerungstank 2 bestimmt.
Er enthält zu diesem Zeitpunkt 4,1 g NH4Br/l.After 100 m 2 of color paper had been processed, the cleaning effect of the
Es wurde wie in Beispiel 1 verfahren, jedoch wurde am Wässerungstank 1 eine Reihe
mit 4 übereinander angeordneten, angetriebenen Rollenpaaren montiert und das Wasser
selbst aus dem Tank abgelassen. Das Colorpapier durchläuft die Rollenpaare nach
Verlassen des Tanks.The procedure was as in Example 1, but there was a row at
Weiterhin wurde der Wasserzulauf zu Tank 1 geschlossen und statt dessen 150 ml/m2
Wasser auf das obere Rollenpaar getropft. Furthermore, the water inlet to
Der Druck, mit dem sich die 4 Rollenpaare berührten, war ca. 700 p/cm2.The pressure with which the 4 pairs of rollers touched was approximately 700 p / cm 2 .
Wiederum wurde die Reinigungswirkung der Anordnung durch Analyse der NH4Br-Konzentration in Tank 2 bestimmt: 0,39 g/l.Again, the cleaning effect of the arrangement was determined by analyzing the NH 4 Br concentration in tank 2: 0.39 g / l.
Es wurde wie in Beispiel 2 verfahren, jedoch wurden 4 zusätzliche Rollenpaare am
Einlauf in den Tank 1 übereinander installiert, die das Material absteigend durchläuft,
und die sich ebenfalls mit einem Druck von ca. 700 p/cm2 berührten. Die Vorrichtung
enthielt:
Wiederum wurde die Reinigungswirkung durch Analyse der NH4Br-Konzentration im Tank 2 bestimmt: 0,09 g/l.Again, the cleaning effect was determined by analyzing the NH 4 Br concentration in tank 2: 0.09 g / l.
Mit der bevorzugten Ausführungsform wird nochmals eine Steigerung der Reinigungswirkung um den Faktor 4 gefunden.The preferred embodiment again increases the cleaning effect found by a factor of 4.
Ein handelsübliches Colorpapier durchläuft nach Entwicklung, Wäsche, Bleichbad und
Wäsche ein Fixierbad folgender Zusammensetzung:
Dem Fixierbad sind zwei Wässerungstanks mit je 8,5 Litern Tankvolumen nachgeschaltet.
- Wässerungstank 1 -
- direkt nach dem Fixierbad wird mit 120 ml/m2 frischem Wasser regeneriert.
- Wässerungstank 2 -
- enthält Wasser ohne Frischwasserzuführung.
- Washing tank 1 -
- immediately after the fixer is regenerated with 120 ml / m 2 of fresh water.
- Washing tank 2 -
- contains water without fresh water supply.
Nach Verarbeitung von 100 m2 8,9 cm-breiter Rollenware wurde analytisch der Gehalt an Natrium-Thiosulfat im Wässerungstank II bestimmt. Damit ist ein Maß für die Verschleppung gegeben, die bei einer Wässerung von 120 ml/m2 im Tank I resultiert.After processing 100 m 2 8.9 cm-wide roll goods, the content of sodium thiosulfate in the washing tank II was determined analytically. This gives a measure of the carry-over which results in a washing of 120 ml / m 2 in tank I.
Gefunden wurden 11,8 Na2S2O3/l im Tank II.11.8 Na 2 S 2 O 3 / l were found in tank II.
Es wurde wie in Beispiel 4 verfahren, jedoch wurden im Wässerungstank I entsprechend Beispiel 3 zwei Reihen mit je 4 übereinander angeordneten, angetriebenen Rollenpaaren montiert und das Wasser selbst aus dem Tank abgelassen.The procedure was as in Example 4, but in the washing tank I were accordingly Example 3 two rows, each with 4 driven motors arranged one above the other Pairs of rollers mounted and the water drained from the tank itself.
Weiterhin wurde der Wasserzulauf zu Tank I geschlossen und statt dessen je 20 ml/m2 Wasser an allen Rollenpaaren des absteigenden Teils und 40 ml/m2 Wasser an das zweitoberste Rollenpaar des aufsteigenden Teiles angetragen.Furthermore, the water inlet to tank I was closed and instead 20 ml / m 2 of water were applied to all pairs of rollers of the descending part and 40 ml / m 2 of water to the second uppermost pair of rollers of the ascending part.
Der Druck, mit dem sich die 4 Rollenpaare der Reihe, die das Material nach dem Bad durchläuft, berührten, war ca. 700 p/cm2.The pressure with which the 4 pairs of rollers in the row that the material passes through after the bath touched was approximately 700 p / cm 2 .
Wiederum wurde die Natrium-Thiosulfatkonzentration im Wässerungstank II
bestimmt (analytisch).
Bei gleicher eingesetzter Wassermenge für die Wässerungsstufe I resultiert eine verbesserte Reinigung des Materials. With the same amount of water used for washing stage I, an improved result Cleaning the material.
Die Beispiele zeigen, daß mit geringen Wassermengen bei Benutzung der erfindungsgemäßen Vorrichtung eine sehr effektive Wässerung erfolgt. Wird ein Wässerungsergebnis gemäß Beispiel 1 als ausreichend angesehen, so kann die Wässerungszeit erheblich verkürzt werden, z.B. von 90 s in Beispiel 1 auf 25 s.The examples show that with small amounts of water when using the invention Device is very effective watering. Becomes a watering result regarded as sufficient according to Example 1, the rinsing time can be significantly shortened, e.g. from 90 s in Example 1 to 25 s.
Claims (9)
- Device for washing photographic materials comprising at least one washing tank and at least two rows of roller pairs, arranged above each other, above the liquid level of the tank, of which the first row is passed through by the photographic material in descending manner and the second row is passed through by the photographic material in ascending manner, whereincharacterized in that(a) the rollers of any roller pair are arranged axisparallel to each other and touch front and/or back of the photographic material passed between them,(b) at least one roller pair of the descending row and at least one roller pair of the ascending row are provided with a water supply,(c) the pressure which the rollers of at least one roller pair exert on the photographic material is set at 0.0049 to 0.0981 MPa (50 to 1000 p/cm2).
- Process for the continuous washing of a photographic material, which is fed on a U-shaped path and passes through several roller pairs arranged above the liquid level of a washing tank in both descending and ascending manner, the rollers of which roller pairs touch the front and back of the material in each case, and wherein water is added at least on one roller pair, characterized in that at least the rollers of one roller pair exert a pressure on the photographic material which is set at 0.0049 to 0.0981 MPa (50 to 1000 p/cm2).
- Device according to Claim 1, characterized in that the axes of each roller pair are set parallel to the horizontal.
- Device according to Claim 1, characterized in that at least 50% of the roller pairs meet the pressure conditions of Claim 1.
- Device according to Claim 1, characterized in that at least one roller of at least one roller pair is driven.
- Device according to Claim 1, characterized in that the surface of at least one roller of each roller pair is made of a flexible material, preferably rubber.
- Process according to Claim 2, characterized in that at least 50% of the roller pairs exert a pressure of 0.0049 to 0.0981 MPa (50 to 1000 p/cm2) on the photographic material.
- Process according to Claim 2, characterized in that water is applied to the second-highest roller pair of the roller pairs which the material passes through in an ascending manner and to all roller pairs which the material passes through in descending manner.
- Process according to Claim 8, characterized in that after washing the applied water is guided into a preceding bath.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4239401A DE4239401A1 (en) | 1992-11-24 | 1992-11-24 | Device and method for rapid watering of photographic material |
| DE4239401 | 1992-11-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0599147A1 EP0599147A1 (en) | 1994-06-01 |
| EP0599147B1 true EP0599147B1 (en) | 1998-06-17 |
Family
ID=6473483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP93118279A Expired - Lifetime EP0599147B1 (en) | 1992-11-24 | 1993-11-11 | Apparatus and method for rapid washing of photographic material |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5537179A (en) |
| EP (1) | EP0599147B1 (en) |
| JP (1) | JPH06214372A (en) |
| DE (2) | DE4239401A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1268866B1 (en) * | 1993-06-10 | 1997-03-13 | San Marco Imaging Srl | DEVICE FOR AUTOMATIC COMPENSATION OF THE LEVEL OF CHEMICAL TREATMENT BATHS PARTICULARLY APPLICABLE TO MACHINES |
| US5899594A (en) * | 1997-10-09 | 1999-05-04 | Eastman Kodak Company | Processing apparatus and method utilizing a tray assembly and a guide path arrangement |
| GB9721454D0 (en) * | 1997-10-09 | 1997-12-10 | Eastman Kodak Co | Processing photographic material |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62240970A (en) * | 1986-04-14 | 1987-10-21 | Fuji Photo Film Co Ltd | Washing device for photosensitive material |
| JPH067256B2 (en) * | 1986-07-10 | 1994-01-26 | 富士写真フイルム株式会社 | Automatic developing device for silver halide photographic light-sensitive materials |
| US4875067A (en) * | 1987-07-23 | 1989-10-17 | Fuji Photo Film Co., Ltd. | Processing apparatus |
| US4933699A (en) * | 1988-09-05 | 1990-06-12 | Fuji Photo Film Co., Ltd. | Rack for processing photosensitive material |
| DE4106546A1 (en) * | 1991-03-01 | 1992-09-03 | Agfa Gevaert Ag | DEVELOPMENT MACHINE FOR PHOTO MATERIAL |
| DE4141192A1 (en) * | 1991-12-04 | 1993-06-09 | Agfa-Gevaert Ag, 5090 Leverkusen, De | FLUID SCREENERS FOR PHOTOGRAPHIC MATERIALS |
-
1992
- 1992-11-24 DE DE4239401A patent/DE4239401A1/en not_active Withdrawn
-
1993
- 1993-11-11 DE DE59308694T patent/DE59308694D1/en not_active Expired - Fee Related
- 1993-11-11 EP EP93118279A patent/EP0599147B1/en not_active Expired - Lifetime
- 1993-11-15 US US08/151,930 patent/US5537179A/en not_active Expired - Fee Related
- 1993-11-18 JP JP5311026A patent/JPH06214372A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06214372A (en) | 1994-08-05 |
| DE59308694D1 (en) | 1998-07-23 |
| DE4239401A1 (en) | 1994-05-26 |
| EP0599147A1 (en) | 1994-06-01 |
| US5537179A (en) | 1996-07-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE3734097C2 (en) | ||
| DE3225781C2 (en) | Process for modifying the light reflecting properties of a glass surface | |
| DE2623702C3 (en) | Developing device for photographic supports | |
| EP0599147B1 (en) | Apparatus and method for rapid washing of photographic material | |
| EP0545202B1 (en) | Squeegee mechanism for photographic material | |
| DE3511949C2 (en) | ||
| EP0061062A1 (en) | Device for limiting the transfer of treating liquids | |
| EP0415172B1 (en) | Counter-current final treatment apparatus | |
| EP0501232B1 (en) | Method for the treatment of photographic materials | |
| EP0505820B1 (en) | Squeezgee mechanism for photographic material | |
| EP0512321B1 (en) | Photographic processing method | |
| DE3942395C2 (en) | Photographic processing method | |
| DE2456132A1 (en) | PROCESS AND DEVICE FOR DESIZING FABRICS | |
| DE3311707A1 (en) | DEVICE AND METHOD FOR CHEMICAL TREATING A CLOTH | |
| DE3229194A1 (en) | Process for the cleaning of textile material | |
| EP0512318B1 (en) | Photographic processing method | |
| DE69824805T2 (en) | Apparatus and method for processing photographic material | |
| DE19539606A1 (en) | Treatment of plate-shaped objects, particularly electronic circuit boards | |
| DE1460362A1 (en) | Method and device for the continuous exchange of substances between liquids and moving webs | |
| DE2553525A1 (en) | METHOD FOR STERILIZING PACKAGING LINES | |
| DE2702886C2 (en) | Process for cleaning continuously moving textile webs | |
| DE19617583A1 (en) | Process for developing photographic materials | |
| DE4105918A1 (en) | PHOTOGRAPHIC PROCESSING METHOD | |
| CH480097A (en) | Device for the wet treatment of web-shaped materials | |
| DE1610889A1 (en) | Method and arrangement for the wet treatment of textile webs and the like. |
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 |
Kind code of ref document: A1 Designated state(s): CH DE FR GB LI NL |
|
| 17P | Request for examination filed |
Effective date: 19941104 |
|
| 17Q | First examination report despatched |
Effective date: 19970227 |
|
| GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
| GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
| GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
| GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): CH DE FR GB LI NL |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: NV Representative=s name: E. BLUM & CO. PATENTANWAELTE Ref country code: CH Ref legal event code: EP |
|
| REF | Corresponds to: |
Ref document number: 59308694 Country of ref document: DE Date of ref document: 19980723 |
|
| GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 19980730 |
|
| ET | Fr: translation filed | ||
| 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: GB Ref legal event code: IF02 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 20031023 Year of fee payment: 11 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20031024 Year of fee payment: 11 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20031027 Year of fee payment: 11 Ref country code: DE Payment date: 20031027 Year of fee payment: 11 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 20031118 Year of fee payment: 11 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20041111 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20041130 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20041130 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050601 Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050601 |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20041111 |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050729 |
|
| NLV4 | Nl: lapsed or anulled due to non-payment of the annual fee |
Effective date: 20050601 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |