EP0791456A1 - Method and means for cleaning the surface of a printing machine cylinder - Google Patents

Method and means for cleaning the surface of a printing machine cylinder Download PDF

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Publication number
EP0791456A1
EP0791456A1 EP97101415A EP97101415A EP0791456A1 EP 0791456 A1 EP0791456 A1 EP 0791456A1 EP 97101415 A EP97101415 A EP 97101415A EP 97101415 A EP97101415 A EP 97101415A EP 0791456 A1 EP0791456 A1 EP 0791456A1
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EP
European Patent Office
Prior art keywords
cleaning agent
cleaning
printing press
press cylinder
cylinder
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
EP97101415A
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German (de)
French (fr)
Other versions
EP0791456B1 (en
Inventor
Werner Dr Sondergeld
Heike Schneider
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Manroland AG
Original Assignee
MAN Roland Druckmaschinen AG
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Publication date
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Publication of EP0791456A1 publication Critical patent/EP0791456A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N3/00—Preparing for use and conserving printing surfaces
    • B41N3/06—Preparing for use and conserving printing surfaces by use of detergents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F35/00—Cleaning arrangements or devices
    • B41F35/006—Cleaning arrangements or devices for impression cylinders

Definitions

  • the invention relates to a method and a device for cleaning a printing press cylinder surface, or also a cylinder lift or a film according to the preambles of the main and auxiliary claim.
  • washing devices are known, for example from EP 0 419 289 A2 or EP 0 414 909 B1. These washing devices are used to remove dirt that is often formed by paper dust and printing ink.
  • lateral surfaces with surface structures in printing press cylinders in particular impression cylinders, are known which tend to become soiled due to their structure.
  • the dirt settles in the structure valleys and often consists of residues of paper dust and hardened printing ink residues, which cannot be removed with regular washing devices during the regular washing process.
  • the object of the invention is to develop a method and a device for cleaning a printing press cylinder surface or a cylinder lift or a film from strongly adhering soiling, such as paper dust and hardened printing inks, which also sufficiently clean surface structures with structural valleys.
  • the cleaning can be integrated into the regular cleaning process or can also take place when the press is at a standstill if the soiling is particularly severe.
  • the cleaning effect also increases with a longer exposure time of the cleaning agent to the printing press cylinder surface or the elevator or the film.
  • the cleaning agent can be applied to the press cylinder surface manually or automatically. After a defined exposure time, the cleaning agent is used using a cleaning fluid, vzw. of water or steam, washed off the outer surface.
  • the washing can preferably be carried out with a roller, a cloth washing device or a high pressure washing device.
  • the printing unit shown in FIG. 1 consists in a known manner of an inking unit 1, a dampening unit 2 and a plate cylinder 3.
  • the plate cylinder 3 is adjacent to a blanket cylinder 4 and the blanket cylinder 4 is also assigned a printing press cylinder 5 as an impression cylinder.
  • Blanket cylinder 4 and printing press cylinder 5 each have a washing device 6 known per se. In the present case, this is a brush roller washing device.
  • the printing press cylinder 5 is also associated with a cleaning device 7 that can be brought on and off, which can be brought out of contact with the printing press cylinder 5 in the region of the cylinder duct.
  • the cleaning device 7 consists of a drivable applicator roller 9, vzw.
  • the application roller 9 also has an elastomeric surface and is enclosed by a chamber doctor blade, which is formed by the doctor blade 8 as a metering device and the housing 12 for the supply of the cleaning agent. Squeegees 8 are employed as working and closing squeegees depending on the direction of rotation of the application roller 9.
  • the chamber doctor blade has lines for the supply and discharge of cleaning agents.
  • the applicator roller 9 can also be assigned a container for receiving the cleaning agent or a feed device for the cleaning agent, each with a working doctor blade 8.
  • the mode of operation is as follows: If the structured surface of the printing press cylinder 5 is dirty, it is preferably pre-cleaned with a washing device.
  • the cleaning agent is then preferably fed to the housing 12 of the chambered doctor blade under pressure.
  • the cleaning agent according to the above recipe 1 is used.
  • the application roller 9, here as an anilox roller, rotates and picks up cleaning agent with the cup 11 from the housing 12.
  • the working doctor 8 doses the excess cleaning agent on the webs 10, the cups 11 transport it Desired cleaning agent further on the printing press cylinder 5.
  • the cleaning device 7, especially the rotating, rastered application roller 9, is placed against the printing press cylinder 5, so that the cups 11 can transfer the cleaning agent to the surface of the printing press cylinder 5.
  • the printing press cylinder 5 is also set in rotation.
  • the cleaning device 7 is brought out of contact from the surface of the printing press cylinder 5.
  • One cylinder revolution is sufficient to apply the cleaning agent to the surface, whereby depending on the application roller 9 used and the layer thickness to be applied, several cylinder revolutions are also possible for applying the cleaning agent.
  • the cleaning device 7 is switched off and the printing press cylinder 5 is stopped.
  • the cleaning agent forms a gel-like film on the cylinder surface and now acts on the structured surface of the printing press cylinder 5 for a period of, for example, 2 hours.
  • the cleaning agent remains adhering to the circumference of the printing press cylinder 5.
  • the washing device 6 is placed on the jacket of the printing press cylinder 5 and washes the detergent off the surface with water.
  • a separate piping system for the discharge is arranged for the washing water that holds the cleaning agent (mixture of cleaning fluid, eg water and cleaning agent according to recipe 1).
  • the mode of action is analogous for detergents according to recipes 2 and 3, the exposure time being variable depending on the composition.

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  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Abstract

The procedure and equipment are used as a means of cleaning cylindrical printing press surfaces. An aqueous, alkaline cleaning solution is applied to the surfaces, and left for a specific interval. It is then removed, using a cleaning fluid. Also claimed is a device carrying out the procedure. This has a distribution roller for cleaning fluids which can be moved to or from the surfaces of the printing machine cylinder. The distribution roller has a supply unit for cleaning solution, with a dosing unit controlling its quantity.

Description

Die Erfindung betrifft ein Verfahren sowie eine Vorrichtung zum Reinigen einer Druckmaschinenzylinderoberfläche, oder auch eines Zylinderaufzuges oder einer Folie gemäß den Oberbegriffen von Haupt- und Nebenanspruch.The invention relates to a method and a device for cleaning a printing press cylinder surface, or also a cylinder lift or a film according to the preambles of the main and auxiliary claim.

In Druckmaschinen ist es üblich Verschmutzungen aufweisende Walzen bzw. Zylinder mit einem Reinigungsfluid zu benetzen und dadurch die Verschmutzungen abzulösen. Als Reinigungsfluide sind dabei Wasser, vorzugsweise kohlenwasserstoffhaltige Lösemittel sowie vegetabile Waschmittel gebräuchlich. Um diese Verschmutzungen zu beseitigen sind Waschvorrichtungen bekannt, wie beispielsweise aus der EP 0 419 289 A2 oder der EP 0 414 909 B1. Diese Waschvorrichtungen dienen der Beseitigung von Verschmutzungen, die häufig von Papierstaub und Druckfarbe gebildet werden.In printing presses, it is customary to wet rollers or cylinders which are contaminated with a cleaning fluid and thereby to detach the contaminants. Water, preferably hydrocarbon-containing solvents and vegetable detergents are customary as cleaning fluids. In order to remove this contamination, washing devices are known, for example from EP 0 419 289 A2 or EP 0 414 909 B1. These washing devices are used to remove dirt that is often formed by paper dust and printing ink.

Beispielsweise aus den DE 4 207 119 A1 oder DE 4 230 567 A1 sind Mantelflächen mit Oberflächenstrukturen bei Druckmaschinenzylindern, insbesondere Gegendruckzylindern bekannt, die aufgrund ihrer Struktur zum Verschmutzen neigen. Die Verschmutzungen setzen sich in den Strukturtälern ab und bestehen dabei häufig aus Rückständen von Papierstaub und ausgehärteten Druckfarbenresten, die beim turnusmäßigen Waschvorgang mit üblichen Waschvorrichtungen nicht mehr beseitigt werden können.For example, from DE 4 207 119 A1 or DE 4 230 567 A1, lateral surfaces with surface structures in printing press cylinders, in particular impression cylinders, are known which tend to become soiled due to their structure. The dirt settles in the structure valleys and often consists of residues of paper dust and hardened printing ink residues, which cannot be removed with regular washing devices during the regular washing process.

Werden diese ausgehärteten Rückstände nicht beseitigt, wirkt sich dies negativ auf die Druckqualität, insbesondere bei Schön- und Widerdruck, aus. Die Folge ist, daß der Zylinderaufzug oder die Folie gewechselt werden müssen. Gegebenenfalls muß ein Druckmaschinenzylinder mit ausgehärteter Druckfarbe sogar ausgetauscht werden, was zwangsläufig sehr aufwendig ist.If these hardened residues are not removed, this has a negative impact on the print quality, especially with perfecting. The result is that the cylinder lift or the film must be replaced. A printing press cylinder with hardened printing ink may even have to be replaced, which inevitably is very complex.

Aufgabe der Erfindung ist es, ein Verfahren und eine Vorrichtung zur Reinigung einer Druckmaschinenzylinderoberfläche bzw. eines Zylinderaufzuges oder einer Folie von stark anhaftenden Verschmutzungen, wie Papierstaub und ausgehärteten Druckfarben, zu entwickeln, die auch Oberflächenstrukturen mit Strukturtälern ausreichend reinigen.The object of the invention is to develop a method and a device for cleaning a printing press cylinder surface or a cylinder lift or a film from strongly adhering soiling, such as paper dust and hardened printing inks, which also sufficiently clean surface structures with structural valleys.

Gelöst wird dies durch die Ausbildungsmerkmale der Patentansprüche 1 und 10.This is solved by the training features of claims 1 and 10.

Vorteil des Verfahrens ist es, daß je nach Verschmutzungsgrad das Reinigen in den turnusmäßigen Reinigungsprozeß integriert werden kann oder auch bei besonders starker Verschmutzung bei Druckmaschinenstillstand erfolgen kann. So erhöht sich bei einer längeren Einwirkungszeit des Reinigungsmittels auf die Druckmaschinerzylinderoberfläche bzw. den Aufzug bzw. die Folie auch der Reinigungseffekt. Dies kann insbesondere bei Wartungsstillstand oder bei sonstigem Maschinenstillstand vorteilhaft ausgenutzt werden. Das Reinigungsmittel kann manuell oder auch automatisiert auf die Druckmaschinenzylinderoberfläche aufgetragen werden. Nach einer definierten Einwirkzeit wird das Reinigungsmittel unter Einsatz eines Reinigungsfluides, vzw. von Wasser oder Wasserdampf, von der Mantelfläche abgewaschen. Das Abwaschen kann dabei bevorzugt mit einer Walzen-, einer Tuchwaschvorrichtung oder einer Hochdruckwaschvorrichtung erfolgen.It is an advantage of the method that, depending on the degree of soiling, the cleaning can be integrated into the regular cleaning process or can also take place when the press is at a standstill if the soiling is particularly severe. Thus, the cleaning effect also increases with a longer exposure time of the cleaning agent to the printing press cylinder surface or the elevator or the film. This can be used to advantage in particular when maintenance is at a standstill or when the machine is at a standstill. The cleaning agent can be applied to the press cylinder surface manually or automatically. After a defined exposure time, the cleaning agent is used using a cleaning fluid, vzw. of water or steam, washed off the outer surface. The washing can preferably be carried out with a roller, a cloth washing device or a high pressure washing device.

Bei dem Reinigungsmittel handelt es sich um ein alkalisches Reinigungsgel auf wäßriger Basis mit folgenden möglichen Rezepturen:

Rezeptur 1 :
- anorganische Lauge, vzw. 10 - 25 Gew.-% NaOH,
- Glykolether, vzw. 2-10 Gew.-% 1-Methoxy-2-propanol,
- Tenside,
- Verdickungsmittel .
Rezeptur 2 :
- anorganische Lauge, vzw. 10 - 25 Gew.-% NaOH,
- Tenside,
- Verdickungsmittel .
Rezeptur 3 :
- anorganische Lauge, vzw. 10 - 25 Gew.-% NaOH,
- Verdickungsmittel .
The cleaning agent is an alkaline cleaning gel on an aqueous basis with the following possible recipes:
Recipe 1:
- inorganic lye, vzw. 10 - 25% by weight NaOH,
- Glycol ether, vzw. 2-10% by weight of 1-methoxy-2-propanol,
- surfactants,
- thickener.
Recipe 2:
- inorganic lye, vzw. 10 - 25% by weight NaOH,
- surfactants,
- thickener.
Recipe 3:
- inorganic lye, vzw. 10 - 25% by weight NaOH,
- thickener.

Die Erfindung soll an einem Ausführungsbeispiel näher erläutert werden.The invention will be explained in more detail using an exemplary embodiment.

Dabei zeigen:

Fig. 1
eine Druckeinheit einer Offsetdruckmaschine,
Fig. 2
eine Rasterwalze.
Show:
Fig. 1
a printing unit of an offset printing machine,
Fig. 2
an anilox roller.

Die gemäß Fig. 1 dargestellte Druckeinheit besteht in bekannter Weise aus einem Farbwerk 1, einem Feuchtwerk 2 und einem Plattenzylinder 3. Dem Plattenzylinder 3 ist ein Gummituchzylinder 4 benachbart und dem Gummituchzylinder 4 ist weiterhin ein Druckmaschinenzylinder 5 als Gegendruckzylinder zugeordnet. Gummituchzylinder 4 und Druckmaschinenzylinder 5 besitzen je eine an sich bekannte Waschvorrichtung 6. Im vorliegenden Fall ist dies eine Bürstenwalzen-Waschvorrichtung. Dem Druckmaschinenzylinder 5 ist weiterhin eine Reinigungsvorrichtung 7 an- und abstellbar zugeordnet, welche im Bereich des Zylinderkanals außer Kontakt mit dem Druckmaschinenzylinder 5 bringbar ist. Die Reinigungsvorrichtung 7 besteht aus einer antreibbaren Auftragwalze 9, vzw. einer Rasterwalze, die auf der Mantelfläche verteilt eine Vielzahl von Näpfchen 11 und Stegen 10 aufweist. Die Auftragwalze 9 besitzt weiterhin eine elastomere Oberfläche und ist von einem Kammerrakel umschlossen, welches durch die Rakel 8 als Dosiereinrichtung und das Gehäuse 12 für die Zuführung des Reinigungsmittels gebildet ist. Rakel 8 sind als Arbeits- und Schließrakel je nach Drehrichtung der Auftragwalze 9 angestellt. Das Kammerrakel besitzt Leitungen für die Zuführung und Abführung von Reinigungsmittel.The printing unit shown in FIG. 1 consists in a known manner of an inking unit 1, a dampening unit 2 and a plate cylinder 3. The plate cylinder 3 is adjacent to a blanket cylinder 4 and the blanket cylinder 4 is also assigned a printing press cylinder 5 as an impression cylinder. Blanket cylinder 4 and printing press cylinder 5 each have a washing device 6 known per se. In the present case, this is a brush roller washing device. The printing press cylinder 5 is also associated with a cleaning device 7 that can be brought on and off, which can be brought out of contact with the printing press cylinder 5 in the region of the cylinder duct. The cleaning device 7 consists of a drivable applicator roller 9, vzw. an anilox roller which has a multiplicity of cups 11 and webs 10 distributed on the lateral surface. The application roller 9 also has an elastomeric surface and is enclosed by a chamber doctor blade, which is formed by the doctor blade 8 as a metering device and the housing 12 for the supply of the cleaning agent. Squeegees 8 are employed as working and closing squeegees depending on the direction of rotation of the application roller 9. The chamber doctor blade has lines for the supply and discharge of cleaning agents.

In weiteren Ausbildungen kann der Auftragwalze 9 auch ein Behälter zur Aufnahme des Reinigungsmittels oder eine Zuführeinrichtung für das Reinigungsmittel mit je einem Arbeitsrakel 8 zugeordnet sein.In further embodiments, the applicator roller 9 can also be assigned a container for receiving the cleaning agent or a feed device for the cleaning agent, each with a working doctor blade 8.

Die Wirkungsweise ist wie folgt: Ist die strukturierte Oberfläche des Druckmaschinenzylinders 5 verschmutzt, wird diese vorzugsweise mit einer Waschvorrichtung vorgereinigt. Anschließend wird dem Gehäuse 12 des Kammerrakels das Reinigungsmittel vorzugsweise unter Druck zugeführt. Verwendet wird im vorliegenden Beispiel das Reinigungsmittel gemäß o.g. Rezeptur 1. Die Auftragwalze 9, hier als Rasterwalze, rotiert und nimmt mit den Näpfchen 11 Reinigungsmittel aus dem Gehäuse 12 auf Das Arbeitsrakel 8 dosiert an den Stegen 10 das überschüssige Reinigungsmittel, die Näpfchen 11 transportieren das gewünschte Reinigungsmittel weiter auf den Druckmaschinenzylinder 5 zu. Die Reinigungsvorrichtung 7, speziell die rotierende gerasterte Auftragwalze 9 wird an den Druckmaschinenzylinder 5 angestellt, so daß die Näpfchen 11 das Reinigungsmittel an die Oberfläche des Druckmaschinenzylinders 5 übergeben können. Der Druckmaschinenzylinder 5 wird dabei ebenfalls in Rotation versetzt. Mittels einer winkelkorrelierten Maschinensteuerung wird bei Durchgang eines Zylinderkanals die Reinigungsvorrichtung 7 von der Oberfläche des Druckmaschinenzylinders 5 außer Kontakt gebracht. Zum Auftragen des Reinigungsmittels auf die Oberfläche reicht eine Zylinderumdrehung, wobei je nach verwendeter Auftragwalze 9 und aufzutragender Schichtdicke auch mehrere Zylinderumdrehungen für den Auftrag des Reinigungsmittels möglich sind. Ist die Oberfläche des Druckmaschinenzylinders 5 vollständig mit Reinigungsmittel versehen, so wird die Reinigungsvorrichtung 7 abgestellt, der Druckmaschinenzylinder 5 wird stillgesetzt. Das Reinigungsmittel bildet aufder Zylinderoberfläche einen gelartigen Film und wirkt nun eine Zeit von beispielsweise 2 Stunden auf die strukturierte Oberfläche des Druckmaschinenzylinders 5 ein. Dabei verbleibt das Reinigungsmittel auf dem Umfang des Druckmaschinenzylinders 5 haften. Nach Beendigung der Einwirkzeit wird die Waschvorrichtung 6 an den Mantel des Druckmaschinenzylinders 5 angestellt und wäscht mittels Wasser das Reinigungsmittel von der Oberfläche ab. Für das das Reinigungsmittel aufnehmende Waschwasser (Gemisch aus Reinigungsfluid, z.B. Wasser, und Reinigungsmittel gem. Rezeptur 1) ist ein separates Leitungssystem für die Abfuhr angeordnet.The mode of operation is as follows: If the structured surface of the printing press cylinder 5 is dirty, it is preferably pre-cleaned with a washing device. The cleaning agent is then preferably fed to the housing 12 of the chambered doctor blade under pressure. In the present example, the cleaning agent according to the above recipe 1 is used. The application roller 9, here as an anilox roller, rotates and picks up cleaning agent with the cup 11 from the housing 12. The working doctor 8 doses the excess cleaning agent on the webs 10, the cups 11 transport it Desired cleaning agent further on the printing press cylinder 5. The cleaning device 7, especially the rotating, rastered application roller 9, is placed against the printing press cylinder 5, so that the cups 11 can transfer the cleaning agent to the surface of the printing press cylinder 5. The printing press cylinder 5 is also set in rotation. By means of an angle-correlated machine control, when a cylinder channel passes through, the cleaning device 7 is brought out of contact from the surface of the printing press cylinder 5. One cylinder revolution is sufficient to apply the cleaning agent to the surface, whereby depending on the application roller 9 used and the layer thickness to be applied, several cylinder revolutions are also possible for applying the cleaning agent. If the surface of the printing press cylinder 5 is completely provided with cleaning agent, the cleaning device 7 is switched off and the printing press cylinder 5 is stopped. The cleaning agent forms a gel-like film on the cylinder surface and now acts on the structured surface of the printing press cylinder 5 for a period of, for example, 2 hours. The cleaning agent remains adhering to the circumference of the printing press cylinder 5. After the exposure time, the washing device 6 is placed on the jacket of the printing press cylinder 5 and washes the detergent off the surface with water. A separate piping system for the discharge is arranged for the washing water that holds the cleaning agent (mixture of cleaning fluid, eg water and cleaning agent according to recipe 1).

Die Wirkungsweise ist für Reinigungsmittel gemäß den Rezepturen 2 und 3 analog, wobei je nach Zusammensetzung die Einwirkzeit veränderlich ist..The mode of action is analogous for detergents according to recipes 2 and 3, the exposure time being variable depending on the composition.

BezugszeichenlisteReference list

11
FarbwerkInking unit
22nd
FeuchtwerkDampening system
33rd
PlattenzylinderPlate cylinder
44th
GummituchzylinderBlanket cylinder
55
DruckmaschinenzylinderPrinting press cylinder
66
WaschvorrichtungWashing device
77
ReinigungsvorrichtungCleaning device
88th
RakelSqueegee
99
AuftragwalzeApplicator roller
1010th
StegeWalkways
1111
NäpfchenCell
1212th
Gehäusecasing

Claims (14)

Verfahren und Vorrichtung zum Reinigen einer Druckmaschinenzylinderoberfläche,
dadurch gekennzeichnet,
daß ein wäßriges alkalisches Reinigungsmittel auf die Oberfläche aufgetragen wird, das Reinigungsmittel eine definierte Zeit auf die Oberfläche einwirkt und anschließend mit einem Reinigungsfluid von der Oberfläche entfernt wird.Method and device for cleaning a printing press cylinder surface,
characterized by
that an aqueous alkaline cleaning agent is applied to the surface, the cleaning agent acts on the surface for a defined time and then is removed from the surface with a cleaning fluid. Verfahren nach Anspruch 1,
dadurch gekennzeichnet,
daß die Zeitdauer der Einwirkung mindestens 60 Minuten beträgt.Method according to claim 1,
characterized by
that the duration of exposure is at least 60 minutes. Verfahren nach Anspruch 1,
dadurch gekennzeichnet,
daß das Reinigungsmittel mindestens aus einer anorganischen Lauge und einem Verdickungsmittel gebildet wird.Method according to claim 1,
characterized by
that the cleaning agent is formed at least from an inorganic alkali and a thickener. Verfahren nach Anspruch 3,
dadurch gekennzeichnet,
daß das Reinigungsmittel Tenside enthält.Method according to claim 3,
characterized by
that the detergent contains surfactants. Verfahren nach Anspruch 3 und 4,
dadurch gekennzeichnet,
daß das Reinigungsmittel Glykolether enthält.Method according to claims 3 and 4,
characterized by
that the detergent contains glycol ether. Verfahren nach Anspruch 3,
dadurch gekennzeichnet,
daß die anorganische Lauge in einer Konzentration von 10 bis 25 Gew.-% NaOH vorliegt.Method according to claim 3,
characterized by
that the inorganic alkali is present in a concentration of 10 to 25 wt .-% NaOH. Verfahren nach Anspruch 5,
dadurch gekennzeichnet,
daß der Glykolether in einer Konzentration von 2 bis 10 Gew.-% 1-Methoxy-2-propanol vorliegt.Method according to claim 5,
characterized by
that the glycol ether is present in a concentration of 2 to 10 wt .-% 1-methoxy-2-propanol. Verfahren nach Anspruch 1,
dadurch gekennzeichnet,
daß vor dem Auftragen des Reinigungsmittels auf die Oberfläche des Druckmaschinenzylinders die Oberfläche mit einem Reinigungsfluid gewaschen wird.Method according to claim 1,
characterized by
that the surface is washed with a cleaning fluid before applying the cleaning agent to the surface of the printing press cylinder. Verfahren nach Anspruch 8,
dadurch gekennzeichnet,
daß das Reinigungsfluid ein vegetabiles Waschmittel ist.A method according to claim 8,
characterized by
that the cleaning fluid is a vegetable detergent. Vorrichtung zur Durchführung des Verfahrens,
dadurch gekennzeichnet,
daß die Vorrichtung durch eine an die Oberfläche des Druckmaschinenzylinders, des Aufzuges, der Folie an- und abstellbare und im Bereich eines Zylinderkanals außer Kontakt bringbare Auftragwalze mit Zuführeinrichtung für das Reinigungsmittel und einer Dosiereinrichtung für die Menge des Reinigungsmittels gebildet ist.Device for carrying out the method,
characterized by
that the device is formed by an applicator roller which can be turned on and off the surface of the printing press cylinder, the elevator, the film and which can be brought out of contact in the area of a cylinder channel, with a feed device for the cleaning agent and a metering device for the amount of cleaning agent. Vorrichtung nach Anspruch 10,
dadurch gekennzeichnet,
daß die Auftragwalze eine Rasterwalze mit einer elastomeren Oberfläche mit auf der Mantelfläche verteilt angeordneten Näpfchen (11) und Stegen (10) aufweist.Apparatus according to claim 10,
characterized by
that the applicator roller has an anilox roller with an elastomeric surface with cups (11) and webs (10) arranged distributed on the lateral surface. Vorrichtung nach Anspruch 10,
dadurch gekennzeichnet,
daß die Zuführeinrichtung ein Behälter für die Aufnahme des Reinigungsmittels ist, in dem die Auftragwalze eintaucht und die Dosiereinrichtung ein Rakel (8) ist.Apparatus according to claim 10,
characterized by
that the feed device is a container for receiving the cleaning agent, in which the applicator roller is immersed and the metering device is a doctor blade (8). Vorrichtung nach Anspruch 10,
dadurch gekennzeichnet,
daß die Auftragwalze als Rasterwalze von einem Kammerrakel mit einem Arbeits- und einem Schließrakel umgeben ist und ein Leitungssystem für die Zuführ und Abfuhr des Reinigungsmittels aufweist.Apparatus according to claim 10,
characterized by
that the applicator roller as an anilox roller is surrounded by a chamber doctor blade with a working and a closing doctor blade and has a line system for the supply and discharge of the cleaning agent. Vorrichtung nach Anspruch 10,
dadurch gekennzeichnet,
daß dem Druckmaschinenzylinder eine weitere Waschvorrichtung (6) benachbart zugeordnet ist.Apparatus according to claim 10,
characterized by
that a further washing device (6) is assigned adjacent to the printing press cylinder.
EP97101415A 1996-02-24 1997-01-30 Method and means for cleaning the surface of a printing machine cylinder Expired - Lifetime EP0791456B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19607037A DE19607037C2 (en) 1996-02-24 1996-02-24 Process for cleaning a printing press cylinder surface with a surface structure
DE19607037 1996-02-24

Publications (2)

Publication Number Publication Date
EP0791456A1 true EP0791456A1 (en) 1997-08-27
EP0791456B1 EP0791456B1 (en) 2000-04-19

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EP97101415A Expired - Lifetime EP0791456B1 (en) 1996-02-24 1997-01-30 Method and means for cleaning the surface of a printing machine cylinder

Country Status (7)

Country Link
US (1) US5911175A (en)
EP (1) EP0791456B1 (en)
JP (1) JP3014655B2 (en)
AT (1) ATE191882T1 (en)
DE (2) DE19607037C2 (en)
DK (1) DK0791456T3 (en)
ES (1) ES2146043T3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1319697A1 (en) * 2001-12-13 2003-06-18 Hartmann Druckfarben GmbH Water washable offset printing ink with a detergent and method of production thereof

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ES2146043T3 (en) 2000-07-16
EP0791456B1 (en) 2000-04-19
JP3014655B2 (en) 2000-02-28
DE59701459D1 (en) 2000-05-25
JPH09234857A (en) 1997-09-09
DE19607037C2 (en) 1999-03-25
US5911175A (en) 1999-06-15
DE19607037A1 (en) 1997-09-04
ATE191882T1 (en) 2000-05-15
DK0791456T3 (en) 2000-09-18

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