EP0619186B1 - Coating device in printing machines - Google Patents

Coating device in printing machines Download PDF

Info

Publication number
EP0619186B1
EP0619186B1 EP94103838A EP94103838A EP0619186B1 EP 0619186 B1 EP0619186 B1 EP 0619186B1 EP 94103838 A EP94103838 A EP 94103838A EP 94103838 A EP94103838 A EP 94103838A EP 0619186 B1 EP0619186 B1 EP 0619186B1
Authority
EP
European Patent Office
Prior art keywords
doctor
offset printing
unit
chamber doctor
roller
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.)
Revoked
Application number
EP94103838A
Other languages
German (de)
French (fr)
Other versions
EP0619186A1 (en
Inventor
Georg Hartung
Ulrich Dr. Jung
Jürgen Schneider
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Manroland AG
Original Assignee
MAN Roland Druckmaschinen AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6485228&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0619186(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP0619186A1 publication Critical patent/EP0619186A1/en
Application granted granted Critical
Publication of EP0619186B1 publication Critical patent/EP0619186B1/en
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F7/00Rotary lithographic machines
    • B41F7/02Rotary lithographic machines for offset printing
    • B41F7/04Rotary lithographic machines for offset printing using printing units incorporating one forme cylinder, one transfer cylinder, and one impression cylinder, e.g. for printing on webs
    • B41F7/06Rotary lithographic machines for offset printing using printing units incorporating one forme cylinder, one transfer cylinder, and one impression cylinder, e.g. for printing on webs for printing on sheets
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F23/00Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/08Print finishing devices, e.g. for glossing prints

Definitions

  • the invention relates to a device for coating printing materials in printing presses, especially for applying higher-viscosity, water-thinnable layers of a defined thickness as effect and / or protective lacquer to the printing material.
  • DE 3 046 257 C2 discloses a device with a paint reservoir and a scoop roller.
  • the paint taken up by the scoop roller is metered to an application roller.
  • Two squeegee rollers can be adjusted to the scoop roller and a squeegee blade can be adjusted to the metering roller to strip off the amount of paint.
  • An application for high-viscosity, oil-containing or low-viscosity water-soluble layers is known from DE 3 906 648 A1.
  • This application unit is designed as a coating device, optionally as an offset letterpress or gravure unit.
  • the explanations are based on a structured scoop roller which corresponds to a doctor blade or an application roller and a structured forme cylinder which corresponds to a doctor blade.
  • the high-pressure unit consists of a scoop roller profiled with a cup, to which a doctor blade is assigned, a transfer roller, to which smoothing rollers are assigned, and a forme cylinder with a high-pressure mold.
  • a so-called chamber doctor blade for applying a coating composition to a coating roller is known. At least two doctor blades lying against a roller form a chamber for receiving a mass which is supplied under pressure.
  • DE 3 941 571 A1 discloses a method and a device for processing special colors in offset printing machines. After the last offset printing unit, a varnish is transferred to the substrate using a high-pressure unit. In the dampening unit of the last offset printing unit, a first coating is already carried out as pre-coating and in the downstream coating unit, a second coating is carried out, and then a third coating is applied to the printing material in a further coating unit.
  • the device itself is essentially formed from a flexographic printing unit with an immersion roller, an inking roller with a grid structure and a forme cylinder.
  • the object of the invention is to develop a coating device for printing presses which permits problem-free inline processing of rapidly evaporating liquids with a viscosity of approximately 0.1 to 2 Pa s and special compositions with a high pigment content or coarse pigments.
  • the solution according to the invention makes it possible to carry out the inline coating with higher-viscosity liquids in a printing press, with particular attention to water-based paints or pigmented paints (metallic gloss prints).
  • Areas of application exist for recessed painting (spot painting) or full-area painting.
  • Due to the closed chamber in the chamber doctor blade the evaporation of the liquid used is reduced. This improves the processing of quickly evaporating, eg water-soluble liquids.
  • the chambered doctor blade also prevents that of open doctor blade blade designs or scoop roller designs known paint or paint syringes. The possible build-up of dried paint / ink residues on the squeegee blade is also prevented.
  • the device according to the invention represents a functional module. In addition to combinations of at least one offset printing unit and at least one flexographic printing unit, these devices can be followed by a further painting device, for example for full-area painting.
  • the printing press which is designed in a row, consists of five offset printing units, a coating device 1 and a downstream conventional coating unit.
  • the coating device 1 can be used as a spot painting device (for recessed painting) and the downstream painting unit for full-surface surface finishing.
  • the coating device 1 consists of a pressure cylinder 2, the sheet-guiding cylinders (not shown) are arranged upstream or downstream.
  • the impression cylinder 2 is in contact with a forme cylinder 3, which carries a clamped flexible high pressure plate.
  • an applicator roller 4 In contact with the forme cylinder 3 is an applicator roller 4, which acts as a lacquer roller and has a structured surface with grid cups.
  • a chamber doctor blade 5 is assigned to the application roller 4, which has a positive doctor blade 8 and a negative doctor blade 9 and final side parts, so that an open chamber is formed for the application roller 4.
  • the positive doctor blade 8 points in the direction of rotation of the application roller 4 and acts as a closing doctor blade.
  • the negative doctor blade 9 points against the direction of rotation of the application roller 4 and acts as a working doctor blade.
  • the chambered doctor blade 5 has on its housing an above-feeding liquid inlet 10 which is arranged in the center. At the Lower part of the chamber doctor blade 5, two emerging liquid drains 11 are arranged in the region of the side parts.
  • the liquid inlet 10 is coupled to a feed pump 7 and a line.
  • the liquid drains 11 lead via lines to a suction pump 6.
  • a liquid which is especially viscous due to the pigmentation for example water-based liquid, such as gold and silver printing ink, opaque white or lacquer, is fed through the feed pump 7 via a line and the liquid inlet 10 into the housing chamber of the chambered doctor blade 5 funded.
  • the delivery pressure of the pump 7 forms an overpressure in the interior of the chambered doctor blade 5, due to which the higher-viscosity liquid should leave the interior of the chambered doctor blade 5 in the direction of the application roller and through the liquid drains 11. From the outlets 11, the liquid is conveyed back into a reservoir 12 by the suction pump 6. Via the grid cups of the application roller 4, the higher-viscosity liquid is transported from the application roller 4, which acts as a coating roller, for inking the high-pressure form onto the forme cylinder 3 and is applied as a layer to the printing material supplied by the impression cylinder 2. During the liquid transport caused by the application roller 4, the negative doctor blade 9 scrapes the liquid off the webs of the grid structure of the application roller 4, so that the liquid remains only in the grid cups.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Printing Methods (AREA)
  • Coating Apparatus (AREA)
  • Non-Metallic Protective Coatings For Printed Circuits (AREA)

Abstract

The invention relates to a device for coating printing carriers in printing machines for applying water-based liquids of relatively high viscosity. The object of the invention is to develop a corresponding device for printing machines, which permits in-line processing of liquids of a relatively high viscosity of about 0.1 to 2 Pa s. The object is achieved in that an impression cylinder (2) is assigned to a forme cylinder (3) bearing a letterpress forme, an applicator roller (4) with a screen structure is assigned to the forme cylinder (3) and, at the same time, a chamber doctor (5) is assigned to the applicator roller (4). The chamber doctor (5) consists of a positive doctor (8) and a negative doctor (9) as well as side parts. Liquid of relatively high viscosity is fed via a conveying pump (7) to the chamber doctor (5), an excess pressure is built up inside the chamber doctor (5), the liquid of relatively high viscosity flows away via liquid drains (11) and is fed to a suction pump (6) with a reservoir (12). <IMAGE>

Description

Die Erfindung betrifft eine Einrichtung zum Beschichten von Bedruckstoffen in Druckmaschinen, speziell zum Auftragen von höherviskosen, wasserverdünnbaren, als effekt- und/oder schutzlackwirkenden Schichten definierter Dicke auf den Bedruckstoff.The invention relates to a device for coating printing materials in printing presses, especially for applying higher-viscosity, water-thinnable layers of a defined thickness as effect and / or protective lacquer to the printing material.

Aus der DE 3 046 257 C2 ist eine Einrichtung mit einem Lackvorratsbehälter und einer Schöpfwalze bekannt. Der durch die Schöpfwalze aufgenommene Lack wird dosiert einer Auftragwalze zugeführt. Zwei Rakelwalzen sind an die Schöpfwalze anstellbar und an die Dosierwalze ist ein Rakelblatt zum Abstreifen der Lackmenge anstellbar.DE 3 046 257 C2 discloses a device with a paint reservoir and a scoop roller. The paint taken up by the scoop roller is metered to an application roller. Two squeegee rollers can be adjusted to the scoop roller and a squeegee blade can be adjusted to the metering roller to strip off the amount of paint.

Ein Auftragswerk für hochviskose, ölhaltige oder niedrigviskose wasserlösliche Schichten ist aus der DE 3 906 648 A1 bekannt. Dieses Auftragswerk ist als Lackiereinrichtung, wahlweise als Offset-Hochdruck- oder Tiefdruckwerk ausgebildet. Die Ausführungen gehen von einer strukturierten Schöpfwalze aus, die mit einem Rakelblatt korrespondiert bzw. von einer Auftragwalze und einem strukturierten Formzylinder, der mit einem Rakelblatt korrespondiert. Das Hochdruckwerk besteht dabei aus einer mit Näpfchen profilierten Schöpfwalze, der ein Rakelblatt zugeordnet ist, einer Übertragwalze, der Glättwalzen zugeordnet sind und einem Formzylinder mit Hochdruckform.An application for high-viscosity, oil-containing or low-viscosity water-soluble layers is known from DE 3 906 648 A1. This application unit is designed as a coating device, optionally as an offset letterpress or gravure unit. The explanations are based on a structured scoop roller which corresponds to a doctor blade or an application roller and a structured forme cylinder which corresponds to a doctor blade. The high-pressure unit consists of a scoop roller profiled with a cup, to which a doctor blade is assigned, a transfer roller, to which smoothing rollers are assigned, and a forme cylinder with a high-pressure mold.

Gemäß der DE 3 427 898 C1 ist eine Vorrichtung zum Dosieren von Lack über einen zwischen zwei Walzen gebildeten Lackspalt bekannt.According to DE 3 427 898 C1, a device for metering lacquer through a lacquer gap formed between two rollers is known.

Nachteilig bei diesen Lösungen ist es, daß bei Verarbeitung von Flüssigkeiten mit höherer Viskosität, ca. 0,1 bis 2 Pa s Probleme auftreten, da die Flüssigkeiten eine Fließgrenze aufweisen. Es kommt zu Störungen der Flüssigkeitsströmungen, die z.B. zu sogenannten Lacknestern führen, in denen der Lack leicht antrocknet.The disadvantage of these solutions is that when processing Liquids with a higher viscosity, approx. 0.1 to 2 Pa s Problems occur because the liquids have a yield point. The liquid flows are disturbed, which leads to so-called paint nests, for example, in which the paint dries slightly.

Beispielsweise aus der DE 3 614 582 A1 ist ein sogenanntes Kammerrakel zum Auftragen einer Beschichtungsmasse auf eine Beschichtungswalze bekannt. Mindestens zwei, an einer Walze anliegende, Rakelblätter bilden eine Kammer zur Aufnahme einer Masse, die unter Druck zugeführt wird.For example, from DE 3 614 582 A1, a so-called chamber doctor blade for applying a coating composition to a coating roller is known. At least two doctor blades lying against a roller form a chamber for receiving a mass which is supplied under pressure.

Nachteilig ist, daß die unter Druck zugeführte Masse lediglich über den Rakelspalt austreten kann und über einen weiteren druckfreien Raum eine Rückführung des Überschusses erfolgt. Bei Verwendung von höherviskosen Flüssigkeiten können sich an den Rakelblättern Ablagerungen aufbauen, die zu Druckstörungen führen.It is disadvantageous that the mass supplied under pressure can only emerge via the doctor blade gap and the excess is returned via a further pressure-free space. When using highly viscous liquids, deposits can build up on the doctor blades, which can lead to pressure disturbances.

Aus der DE 3 941 571 A1 ist ein Verfahren und eine Einrichtung zur Verarbeitung von Spezialfarben in Offsetdruckmaschinen bekannt. Mittels eines Hochdruckwerkes wird nach dem letzten Offsetdruckwerk ein Lackauftrag auf den Bedruckstoffübertragen. Im Feuchtwerk des letzen Offsetdruckwerkes wird dazu bereits eine erste Lackierung als Vorlackierung und im nachgeordneten Lackwerk wird eine zweite Lackierung durchgeführt und danach wird in einem weiteren Lackwerk eine dritte Lackierung auf den Bedruckstoff aufgebracht. Die Einrichtung selbst wird dabei im wesentlichen aus einem Flexodruckwerk mit einer Tauchwalze, einer Einfärbwalze mit Rasterstruktur und einem Formzylinder gebildet.DE 3 941 571 A1 discloses a method and a device for processing special colors in offset printing machines. After the last offset printing unit, a varnish is transferred to the substrate using a high-pressure unit. In the dampening unit of the last offset printing unit, a first coating is already carried out as pre-coating and in the downstream coating unit, a second coating is carried out, and then a third coating is applied to the printing material in a further coating unit. The device itself is essentially formed from a flexographic printing unit with an immersion roller, an inking roller with a grid structure and a forme cylinder.

Gemäß der Zeitschrift "Flexodruck", 2/93, Seiten 42 bis 43 ist es bekannt, ein Lackierwerk mit einer Rasterwalze sowie einem Kammerrakel als Flexodruckwerk auszubilden.According to the magazine "Flexodruck", 2/93, pages 42 to 43, it is known to design a coating unit with an anilox roller and a chambered doctor blade as a flexographic printing unit.

Aufgabe der Erfindung ist es, eine Beschichtungseinrichtung für Druckmaschinen zu entwickeln, die eine problemlose Inline-Verarbeitung von schnellverdunstenden Flüssigkeiten mit einer Viskosität von etwa 0,1 bis 2 Pa s und speziellen Zusammensetzungen mit hohem Pigmentanteil bzw. groben Pigmenten gestattet.The object of the invention is to develop a coating device for printing presses which permits problem-free inline processing of rapidly evaporating liquids with a viscosity of approximately 0.1 to 2 Pa s and special compositions with a high pigment content or coarse pigments.

Gelöst wird die Aufgabe durch eine Einrichtung gemäß Anspruch 1. Weiterbildungen ergeben sich aus den Unteransprüchen.The object is achieved by a device according to claim 1. Further developments result from the subclaims.

Die erfindungsgemäße Lösung gestattet es, das Inline-Beschichten mit höherviskosen Flüssigkeiten in einer Druckmaschine vorzunehmen unter besonderer Berücksichtigung von Lacken bzw. pigmentierten Farben auf Wasserbasis (Metallglanzdrucke). Einsatzgebiete bestehen für ausgespartes Lackieren (Spotlackierung) oder vollflächiges Lackieren. Aufgrund der geschlossenen Kammer beim Kammerrakel wird die Verdunstung der verwendeten Flüssigkeit reduziert. Dadurch wird die Verarbeitung von schnell verdunstenden, z.B. wasserlöslichen Flüssigkeiten verbessert. Die Kammerrakel verhindert weiterhin das von offenen Rakelblattausführungen bzw. Schöpfwalzenausführungen bekannte Lack- bzw. Farbspritzen. Ebenso wird das mögliche Aufbauen von angetrockneten Lack-/Farbresten an der Rakelschneide verhindert. Durch das geschlossene Flüssigkeitstransportsystem stellt die erfindungsgemäße Einrichtung einen Funktionsbaustein dar. Neben Kombinationen von mindestens einem Offsetdruckwerk und mindestens einem Flexodruckwerk kann diesen Einrichtungen eine weitere Lackiereinrichtung, z.B. zum vollflächigen Lackieren, nachgeordnet sein.The solution according to the invention makes it possible to carry out the inline coating with higher-viscosity liquids in a printing press, with particular attention to water-based paints or pigmented paints (metallic gloss prints). Areas of application exist for recessed painting (spot painting) or full-area painting. Due to the closed chamber in the chamber doctor blade, the evaporation of the liquid used is reduced. This improves the processing of quickly evaporating, eg water-soluble liquids. The chambered doctor blade also prevents that of open doctor blade blade designs or scoop roller designs known paint or paint syringes. The possible build-up of dried paint / ink residues on the squeegee blade is also prevented. Due to the closed liquid transport system, the device according to the invention represents a functional module. In addition to combinations of at least one offset printing unit and at least one flexographic printing unit, these devices can be followed by a further painting device, for example for full-area painting.

Die Erfindung soll an einem Ausführungsbeispiel näher erläutert werden. Dabei zeigt

Fig. 1
die schematische Darstellung einer Einrichtung zum Beschichten.
The invention will be explained in more detail using an exemplary embodiment. It shows
Fig. 1
the schematic representation of a device for coating.

Die in Reihenbauweise ausgeführte Druckmaschine besteht aus fünf Offsetdruckwerken, einer Beschichtungseinrichtung 1 und einer nachgeordneten herkömmlichen Lackiereinheit. Dabei kann die Beschichtungseinrichtung 1 als Spotlackiereinrichtung (für ausgespartes Lackieren) und die nachgeordnete Lackiereinheit zum vollflächigen Oberflächenfinishing eingesetzt werden.The printing press, which is designed in a row, consists of five offset printing units, a coating device 1 and a downstream conventional coating unit. The coating device 1 can be used as a spot painting device (for recessed painting) and the downstream painting unit for full-surface surface finishing.

Die erfindungsgemäße Beschichtungseinrichtung 1 besteht aus einem Druckzylinder 2, dem bogenführende Zylinder (nicht gezeigt) vor- bzw. nachgeordnet sind. Der Druckzylinder 2 ist in Kontakt mit einem Formzylinder 3, der eine eingespannte flexible Hochdruckplatte trägt. In Kontakt mit dem Formzylinder 3 ist eine als Lackwalze wirkende Auftragwalze 4, die eine strukturierte Oberfläche mit Rasternäpfchen besitzt. An die Auftragwalze 4 anstellbar ist dieser ein Kammerrakel 5 zugeordnet, welches ein positives Rakel 8 und ein negatives Rakel 9 und abschließende Seitenteile besitzt, so daß zur Auftragwalze 4 eine offene Kammer gebildet wird. Das positive Rakel 8 zeigt in Drehrichtung der Auftragwalze 4 und wirkt als Schließrakel. Das negative Rakel 9 zeigt entgegen der Drehrichtung der Auftragwalze 4 und wirkt als Arbeitsrakel. Das Kammerrakel 5 besitzt an seinem Gehäuse einen oberhalb einspeisenden Flüssigkeitszulauf 10, der mittig angeordnet ist. Am Gehäuseunterteil des Kammerrakels 5 sind zwei austretende Flüssigkeitsabläufe 11 im Bereich der Seitenteile angeordnet. Der Flüssigkeitszulauf 10 ist mit einer Förderpumpe 7 und einer Leitung gekoppelt. Die Flüssigkeitsabläufe 11 führen über Leitungen zu einer Saugpumpe 6. Eine speziell durch die Pigmentierung höherviskose Flüssigkeit z.B. auf Wasserbasis, wie z.B. Gold- und Silberdruckfarbe, Deckweiß oder Lack, wird durch die Förderpumpe 7 über eine Leitung und den Flüssigkeitszulauf 10 in die Gehäusekammer der Kammerrakel 5 gefördert. Der Förderdruck der Pumpe 7 bildet im Inneren des Kammerrakels 5 einen Überdruck aus, aufgrund dessen die höherviskose Flüssigkeit das Innere des Kammerrakels 5 in Richtung Auftragwalze und durch die Flüssigkeitsabläufe 11 verlassen soll. Von den Abläufen 11 wird die Flüssigkeit durch die Saugpumpe 6 in ein Reservoir 12 zurückgefördert. Über die Rasternäpfchen der Auftragwalze 4 wird die höherviskose Flüssigkeit von der als Lackwalze wirkenden Auftragwalze 4 zum Einfärben der Hochdruckform auf den Formzylinder 3 transportiert und wird als Schicht auf den vom Druckzylinder 2 zugeführten Bedruckstoff aufgebracht. Während des von der Auftragwalze 4 bewirkten Flüssigkeitstransports rakelt das negative Rakel 9 die Flüssigkeit von den Stegen der Rasternäpfchenstruktur der Auftragwalze 4 ab, so daß die Flüssigkeit ausschließlich in den Rasternäpfchen verbleibt.The coating device 1 according to the invention consists of a pressure cylinder 2, the sheet-guiding cylinders (not shown) are arranged upstream or downstream. The impression cylinder 2 is in contact with a forme cylinder 3, which carries a clamped flexible high pressure plate. In contact with the forme cylinder 3 is an applicator roller 4, which acts as a lacquer roller and has a structured surface with grid cups. A chamber doctor blade 5 is assigned to the application roller 4, which has a positive doctor blade 8 and a negative doctor blade 9 and final side parts, so that an open chamber is formed for the application roller 4. The positive doctor blade 8 points in the direction of rotation of the application roller 4 and acts as a closing doctor blade. The negative doctor blade 9 points against the direction of rotation of the application roller 4 and acts as a working doctor blade. The chambered doctor blade 5 has on its housing an above-feeding liquid inlet 10 which is arranged in the center. At the Lower part of the chamber doctor blade 5, two emerging liquid drains 11 are arranged in the region of the side parts. The liquid inlet 10 is coupled to a feed pump 7 and a line. The liquid drains 11 lead via lines to a suction pump 6. A liquid which is especially viscous due to the pigmentation, for example water-based liquid, such as gold and silver printing ink, opaque white or lacquer, is fed through the feed pump 7 via a line and the liquid inlet 10 into the housing chamber of the chambered doctor blade 5 funded. The delivery pressure of the pump 7 forms an overpressure in the interior of the chambered doctor blade 5, due to which the higher-viscosity liquid should leave the interior of the chambered doctor blade 5 in the direction of the application roller and through the liquid drains 11. From the outlets 11, the liquid is conveyed back into a reservoir 12 by the suction pump 6. Via the grid cups of the application roller 4, the higher-viscosity liquid is transported from the application roller 4, which acts as a coating roller, for inking the high-pressure form onto the forme cylinder 3 and is applied as a layer to the printing material supplied by the impression cylinder 2. During the liquid transport caused by the application roller 4, the negative doctor blade 9 scrapes the liquid off the webs of the grid structure of the application roller 4, so that the liquid remains only in the grid cups.

BezugszeichenaufstellungList of reference symbols

11
EinrichtungFacility
22nd
DruckzylinderImpression cylinder
33rd
FormzylinderForme cylinder
44th
AuftragwalzeApplicator roller
55
KammerrakelChamber squeegee
66
SaugpumpeSuction pump
77
FörderpumpeFeed pump
88th
positives Rakelpositive squeegee
99
negatives Rakelnegative squeegee
1010th
FlüssigkeitszulaufFluid supply
1111
FlüssigkeitsablaufFluid drainage
1212th
Reservoirreservoir

Claims (6)

  1. Device (1) for coating material to be printed in rotary printing presses for multi-colour offset printing with at least one varnishing unit constructed as a flexo printing unit wherein the device (1) forming the varnishing unit consists of the following elements:
       a forme cylinder (3) carrying a relief forme which is in contact with an impression cylinder (2),
       an applicator roller (4) with raster structure which is in contact with the forme cylinder (3) and
       a chamber doctor (5), the positive doctor (8) of which is set against this in the direction of rotation of the applicator roller (4) and the negative doctor of which is set against this counter to the direction of rotation of the applicator roller (4), and that in the interior of the chamber doctor (5), an excess pressure can be generated in that a feed pump (7) is arranged in feed systems with a reservoir (12) prior to the chamber doctor (5) and thereafter a suction pump (6) in conduit systems with reservoir (12).
  2. Device according to Claim 1, characterised in that the chamber doctor (5) with conduit system, feed pump (7) and suction pump (6) forms a closed system in which between feed pump (7) and suction pump (6), a common reservoir (12) is arranged.
  3. Device according to Claim 1, characterised in that the unit is arranged upstream of the offset print unit in an offset printing press as a functional module.
  4. Device according to Claim 1, characterised in that the device (1) is arranged as a functional module in an offset printing press between the offset printing units.
  5. Device according to Claim 1, characterised in that the device (1) is arranged downstream of the offset printing units in an offset printing press as a functional module.
  6. Device according to Claim 1, characterised in that in an offset printing press, a further varnishing unit is arranged downstream of the device (1) which is formed at least by a varnish storage container and a scoop roller.
EP94103838A 1993-04-08 1994-03-12 Coating device in printing machines Revoked EP0619186B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4311834 1993-04-08
DE4311834A DE4311834C2 (en) 1993-04-08 1993-04-08 Device for coating substrates in printing machines

Publications (2)

Publication Number Publication Date
EP0619186A1 EP0619186A1 (en) 1994-10-12
EP0619186B1 true EP0619186B1 (en) 1997-04-16

Family

ID=6485228

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94103838A Revoked EP0619186B1 (en) 1993-04-08 1994-03-12 Coating device in printing machines

Country Status (4)

Country Link
EP (1) EP0619186B1 (en)
JP (2) JPH06316058A (en)
AT (1) ATE151694T1 (en)
DE (2) DE4311834C2 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19513888A1 (en) * 1995-04-19 1996-10-24 Focke & Co Method and device for applying markings, in particular color markings, to film webs
US5630363A (en) 1995-08-14 1997-05-20 Williamson Printing Corporation Combined lithographic/flexographic printing apparatus and process
EP0767058A3 (en) * 1995-10-02 1998-06-10 DeMoore, Howard W. Printing press
DE19542097C2 (en) * 1995-11-11 1997-10-16 Hans Josef May Device for coating metal strips
DE29616686U1 (en) * 1996-09-25 1996-11-14 MAN Roland Druckmaschinen AG, 63075 Offenbach Device for coating substrates with a liquid
DE29702629U1 (en) * 1997-02-15 1997-04-10 Voith Sulzer Papiermaschinen GmbH, 89522 Heidenheim Device for the indirect application of liquid medium on one or both sides to a running web
JPH10226148A (en) * 1997-02-17 1998-08-25 Heidelberger Druckmas Ag Method for multicolor printing of non-absorbable substance
DE19720746C2 (en) * 1997-05-17 2002-06-27 Koenig & Bauer Ag Printing machine with a printing cylinder
DE19729977C2 (en) * 1997-07-12 2001-12-06 Roland Man Druckmasch Offset printing unit for coating substrates in a rotary printing machine
DE19729985C2 (en) * 1997-07-12 2002-04-11 Roland Man Druckmasch Device for coating substrates in an offset printing unit of a rotary printing press
DE20211214U1 (en) * 2002-07-25 2003-12-04 Technotrans Ag System for applying paste type material with a rotating dispensing element in under a reservoir with adjustable dosing rate
DE10236780C1 (en) * 2002-08-10 2003-09-25 Roland Man Druckmasch Fluid medium dosing device, for printing or coating machine, uses controlled operation of feed pump for maintaining constant pressure in fluid medium chamber receiving applicator roller
DE10236781B4 (en) 2002-08-14 2009-11-19 Manroland Ag Coating device for a printing or coating machine
DE102008042263B4 (en) * 2008-09-22 2011-01-27 Koenig & Bauer Aktiengesellschaft Apparatus for applying printing ink
DE102009002228B4 (en) * 2009-04-06 2015-01-08 Koenig & Bauer Aktiengesellschaft Coating unit of a roll-rotary offset printing machine

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3190735A (en) * 1959-06-10 1965-06-22 American Optical Corp Method of making a fiber optical bundle
DE3046257C2 (en) * 1980-12-08 1984-02-16 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Painting equipment on printing machines
DE3427898C1 (en) * 1984-07-28 1985-11-14 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Device for applying liquids, in particular coating unit for a printing press
DE3614582A1 (en) * 1986-04-30 1987-11-05 Will E C H Gmbh & Co Apparatus for uniformly applying a coating composition to a coating roll
DD282663A5 (en) * 1988-03-25 1990-09-19 Polygraph Leipzig ORDERING FOR PRINTING MACHINES
DD278551A1 (en) * 1988-12-27 1990-05-09 Polygraph Leipzig METHOD AND DEVICE FOR PROCESSING SPECIAL COLORS IN BORENO PRESSURE MACHINES
US5176077A (en) * 1991-08-30 1993-01-05 Howard W. DeMoore Coating apparatus for sheet-fed, offset rotary printing presses
US5207159A (en) * 1991-08-30 1993-05-04 Howard W. DeMoore Coating apparatus for sheet-fed, offset rotary printing presses
DE4213024B4 (en) * 1992-04-21 2005-01-27 Heidelberger Druckmaschinen Ag Sheetfed

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Zeitschrift "Flexodruck", 2/93, Seiten 42 bis 43 *

Also Published As

Publication number Publication date
EP0619186A1 (en) 1994-10-12
ATE151694T1 (en) 1997-05-15
JPH06316058A (en) 1994-11-15
DE4311834A1 (en) 1994-10-13
DE4311834C2 (en) 2001-02-01
JP3046078U (en) 1998-02-20
DE59402415D1 (en) 1997-05-22

Similar Documents

Publication Publication Date Title
EP0620115B1 (en) In-line coating device in printing machines
DE3941571C2 (en) Method and device for printing special colors
EP0619186B1 (en) Coating device in printing machines
DE10362054B4 (en) Offset printing process and printed product
DE3327993C2 (en) Equipment on printing machines for applying varnish
CH663577A5 (en) ZONE SCREWLESS PRINTER, IN PARTICULAR FOR ROLL ROTARY PRINTING MACHINE FOR NEWSPAPER AND MAGAZINE PRINTING AND PRINTING DEVICE WITH SUCH A PRINTER.
DE2345183B1 (en) Device for painting or the like. on a printing press
DE3324096A1 (en) DEVICE ON PRINTING MACHINES FOR APPLYING A MEDIUM AFTER THE PRINTING PROCESS IS COMPLETED BY ROLLING
DE4401362C2 (en) Process and rotary printing machine for indirect gravure printing
DE4324631C2 (en) Device for applying liquid media to a substrate in offset printing machines
EP1208976B1 (en) Method and device for producing stock having distinctness-of-image gloss in printing presses
EP0518892B1 (en) Short inking apparatus for a rotary press
DE3906648A1 (en) Application unit for printing machines
DE19937467A1 (en) Device for tempering coating media
EP1056598B1 (en) Sheet-fed letterpress rotary with printing units for multicolour printing and at least one coating unit
DE4334803C1 (en) Device for metering liquid media in offset printing machines, preferably for varnishing units
DE4344084C1 (en) Apparatus for metering fluid media of different viscosities in offset printing machines, preferably in varnishing units
DE3220926A1 (en) ROLL ROTATION PRINTING MACHINE
DE10149009B4 (en) Process for processing an inhibitor and oligomer-containing printing ink in a printing unit of a rotary printing press
DD207358A1 (en) COMBINED HUMIDITY AND PAINTING
DE10360050B3 (en) Printing to produce matt and glossy surfaces, e.g. on an offset machine, involves printing with oil-based ink, coating some parts with matt ink containing a low-surface energy additive, then coating overall with gloss varnish
DE102006004044A1 (en) Method for printing print substrate in printing machine, particularly in sheet rotation printing machine, involves painting face printing that undergoes and follows face printing with lacquer on face printing side by print substrate
EP0828612B1 (en) Inking mechanism for printing machines
EP1198350A2 (en) Varnishing device
DE102007059912A1 (en) Printing unit for rotary printing press, has inking device cooperative with cylinder, and inking device roller assigned to chamber doctor blade as ink reservoir, where blade is divided into two or more partial chambers with divider seals

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

17P Request for examination filed

Effective date: 19940323

AK Designated contracting states

Kind code of ref document: A1

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

17Q First examination report despatched

Effective date: 19951201

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

ITF It: translation for a ep patent filed

Owner name: DE DOMINICIS & MAYER S.R.L.

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

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

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

Ref country code: ES

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19970416

REF Corresponds to:

Ref document number: 151694

Country of ref document: AT

Date of ref document: 19970515

Kind code of ref document: T

ET Fr: translation filed
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

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19970417

REF Corresponds to:

Ref document number: 59402415

Country of ref document: DE

Date of ref document: 19970522

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

26 Opposition filed

Opponent name: KBA KOENIG & BAUER-ALBERT AG

Effective date: 19980116

NLR1 Nl: opposition has been filed with the epo

Opponent name: KBA KOENIG & BAUER-ALBERT AG

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

R26 Opposition filed (corrected)

Opponent name: KOENIG & BAUER AKTIENGESELLSCHAFT

Effective date: 19980116

R26 Opposition filed (corrected)

Opponent name: KBA KOENIG & BAUER-ALBERT AG

Effective date: 19980116

PLBQ Unpublished change to opponent data

Free format text: ORIGINAL CODE: EPIDOS OPPO

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

NLR1 Nl: opposition has been filed with the epo

Opponent name: KBA KOENIG & BAUER-ALBERT AG

Opponent name: KOENIG & BAUER AKTIENGESELLSCHAFT

R26 Opposition filed (corrected)

Opponent name: KOENIG & BAUER AKTIENGESELLSCHAFT

Effective date: 19980116

NLR1 Nl: opposition has been filed with the epo

Opponent name: KOENIG & BAUER AKTIENGESELLSCHAFT

PLBO Opposition rejected

Free format text: ORIGINAL CODE: EPIDOS REJO

APAC Appeal dossier modified

Free format text: ORIGINAL CODE: EPIDOS NOAPO

APAE Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOS REFNO

APAC Appeal dossier modified

Free format text: ORIGINAL CODE: EPIDOS NOAPO

APCC Communication from the board of appeal sent

Free format text: ORIGINAL CODE: EPIDOS OBAPO

APCC Communication from the board of appeal sent

Free format text: ORIGINAL CODE: EPIDOS OBAPO

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: GB

Payment date: 20020222

Year of fee payment: 9

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

Ref country code: CH

Payment date: 20020225

Year of fee payment: 9

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

Ref country code: NL

Payment date: 20020228

Year of fee payment: 9

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

Ref country code: AT

Payment date: 20020307

Year of fee payment: 9

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

Ref country code: DE

Payment date: 20020309

Year of fee payment: 9

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

Ref country code: FR

Payment date: 20020315

Year of fee payment: 9

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

Ref country code: BE

Payment date: 20020322

Year of fee payment: 9

APAC Appeal dossier modified

Free format text: ORIGINAL CODE: EPIDOS NOAPO

RDAG Patent revoked

Free format text: ORIGINAL CODE: 0009271

RDAH Patent revoked

Free format text: ORIGINAL CODE: EPIDOS REVO

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT REVOKED

27W Patent revoked

Effective date: 20030217

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO