EP1008449A1 - Method for coating a printed material in a printing press - Google Patents

Method for coating a printed material in a printing press Download PDF

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Publication number
EP1008449A1
EP1008449A1 EP99122811A EP99122811A EP1008449A1 EP 1008449 A1 EP1008449 A1 EP 1008449A1 EP 99122811 A EP99122811 A EP 99122811A EP 99122811 A EP99122811 A EP 99122811A EP 1008449 A1 EP1008449 A1 EP 1008449A1
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EP
European Patent Office
Prior art keywords
coating
printing
perforated
printing material
edge
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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
EP99122811A
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German (de)
French (fr)
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EP1008449B1 (en
Inventor
Thomas Walther
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Manroland AG
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MAN Roland Druckmaschinen AG
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Publication of EP1008449A1 publication Critical patent/EP1008449A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/08—Print finishing devices, e.g. for glossing prints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/74—Auxiliary operations
    • B31B50/742—Coating; Impregnating; Waterproofing; Decoating
    • B31B50/743—Coating or impregnating edges or corners

Definitions

  • the coating of substrates is, for example, from EP 0 620 115 A1 known. This is on a substrate preferably applied a multicolor print first, then there is a spot painting or a full surface Varnishing on the substrate as a coating. Spot paintwork or full-surface paints are on the most varied Printing materials can be applied, for example in Packaging printing for coating packaging. in this connection in particular the face side (top side) is coated.
  • the disadvantage here is that, for example, in packaging printing further processing is then required.
  • this further processing includes e.g. punching the Printing material in use according to the desired packaging size.
  • the invention has for its object a method of to create the type described above, the above Avoids disadvantages, especially a more universal one Coating of substrates is permitted.
  • a first advantage of the process according to the invention is that the printing material is coated at least on the abutting edges of the panels. It is also advantageous that the printing material is also coated on the face and / or reverse side (top and / or bottom) in spot coating (partial coating) and / or full-surface coating and additionally on the abutting edges of the benefit.
  • the term represents Use "a number of copies or individual parts that can be separated from a printing material (paper web or sheet material).
  • the procedure for packaging printing the butt edges are waterproof or water vapor tight and be coated oil-resistant, so that a softening of the Bump edges caused by aqueous or oily liquids (in the filled Condition of the packaging) is avoided.
  • a butt edge in packaging printing, the edge of a packaging represents e.g. a folding box, which is later exposed with the Product is in contact.
  • At least one perforated butt edge assumed per benefit.
  • This perforation is severed in the thickness (completely or partially) a printing material along a predetermined contour, preferably by punching, Cutting holes or slots, taking advantage remain in the composite within the substrate.
  • the perforation of the substrates is outside the Printing machine, before the coating process, feasible or is inside the printing machine (inline) before the coating process feasible. In preferred training the perforation is not on the butt edge of each panel the perforation of the whole is limited Benefit feasible before the coating process.
  • a coating fluid are particularly suitable for packaging printing a dispersion lacquer and / or a radiation-curing lacquer with high water resistance, water vapor tightness and oil resistance.
  • Coating fluid after application of dispersion varnish
  • UV lacquer are also suitable Coating fluid.
  • each printing unit 1 consists in a known manner of a pressure cylinder 11 as Sheet guide cylinder, a blanket cylinder 9, one Plate cylinder 8 and an inking unit. If necessary, that is Plate cylinder 8 assigned a dampening system.
  • Each coating unit 2, 3 consists of a printing cylinder 11 as Sheet guide cylinder, a forme cylinder 12 and a metering system 13 or 14.
  • the metering system 13 from a screened application roller and an assigned one Chamber doctor blade, however, the metering system 14 consists of a Two-roll mill with coating feed in the nip.
  • the metering systems 13, 14 are between the coating units 2, 3 interchangeable.
  • the Dosing system 13 with screened application roller in the first coating unit 2 can be arranged for spot coatings.
  • the printing units 1 and the coating units 2, 3 are by means of transfer drums 10 as sheet guide cylinders with each other in Functional connection, as is the case with printing presses in series is known.
  • a transfer drum 10 as a sheet guide cylinder arranged between the last printing unit 1 and the first coating unit 2 .
  • a turning system 15 instead of the transfer drum 10 for turning the sheet-shaped substrates 16, preferably after Principle of trailing edge arranged.
  • the last one Coating unit 3 is a boom 5 downstream, which purpose Storage of the printing materials 16 on a delivery stack 6 revolving conveyor system 7 with gripper system. If necessary, to improve the drying of the printing ink or a coating 19 on the substrate 16, between the first coating unit 2 and the second coating unit 3 a dryer system 4 with printing cylinder 11 and at least one transfer drum 10 arranged.
  • Fig. 2 is a section (top view) of the arcuate Printing material 16 shown.
  • the printing substrate 16 has several Benefit 17, which in packaging printing, e.g. for folding boxes are suitable.
  • Each benefit 17 has at least a butt edge 18 of a package.
  • the butt edge is 18 in packaging printing, e.g. for folding boxes, the area of Printing material 16, which contains the contents of the folding boxes comes into contact. If liquids are used as filling material, there is a risk that the abutting edges 18 of the Liquid can be softened.
  • At least each butt edge 18, preferably also the entire one Benefit 17, are already before loading the printing press perforated or are inside the printing machine, e.g. in the last printing unit 1 by means of perforating device, before Perforated coating.
  • a perforation 20 is made through Punch or cut small strings together Holes or slots and serves the benefit 17 (including the butt edge 18) later from the printing material 16 to separate.
  • the perforation 20 can be the full thickness 21 penetrate the substrate 16 (Fig. 3).
  • the perforation 20 (including the butt edge 18) can also be executed as partial perforation (or groove), i.e. the substrate 16 is - when considering the thickness 21 - in Area of the perforation 20 or butt edge 18 still with the Benefits 17 in the network ( Figure 4).
  • a coating 19 made of a waterproof, water vapor tight and oil resistant coating fluid e.g. applied a dispersion varnish.
  • the coating 19 is can be applied to the substrate 16 one or more times. To accelerate the drying of the printing material 16 it is advantageous that the coating fluid is used several times, i.e. multilayer, as coating 19 is applied and in between the printing material is dried.
  • the printing material 16 is dried at least once. Is preferred after each applied layer Coating 19 of printing material 16 also dried.
  • the coating 19 is used as a spot coating (partial Coating) or as a full-surface coating on the Printing material 16 applied.
  • partial Coating partial Coating
  • full-surface coating on the Printing material 16 applied.
  • the coating 19 on the surface of the Printing material 16 diffuses the coating fluid simultaneously into the perforated butt edge 18 and sealed this butt edge 18. If the panels 17 are perforated on all sides, the coating fluid diffuses next to the abutting edge 18 also in the perforation 20.
  • Coating fluid on the substrate 16 as a coating 19 realizable, the coating fluid in turn in the Butt edge 18 and - if already present - in the perforation 20 diffused.
  • two coating units 2, 3 with interposed dryer system 4 can be used, with additional coating units 2, 3 if required intermediate dryer systems 4 can be used.
  • a radiation-curing varnish can also be used as the coating fluid, preferably with multiple coating 19.
  • a thin base is applied to the printing cylinder 11.
  • Such a base is designed, for example, as a self-adhesive base foil, preferably made of a plastic, which can be removed from the printing cylinder 11 if necessary.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Printing Methods (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

Each portion into which the printed matter has been divided includes at least one perforated pack edge (20) and a coating fluid proof against water, steam and oil is then applied to the edge. This coated edge is then dried once so as to allow the coating to diffuse into the abutted edges (18). The edge is preferably perforated in the printing machine and is then coated in water-, steam- and oil proof fluid at least once and is then allowed to dry so the fluid diffuses into the abutting edges. The printed matter can be perforated right through or only part of the way through. Preferred coating fluid is dispersion varnish and/or radiation-hardening varnish.

Description

[Stand der Technik][State of the art]

Das Beschichten von Bedruckstoffen ist beispielsweise aus EP 0 620 115 A1 bekannt. Hierbei wird auf einen Bedruckstoff vorzugsweise zuerst ein Mehrfarbendruck aufgebracht, anschließend erfolgt eine Spot-Lackierung bzw. eine vollflächige Lackierung auf dem Bedruckstoff als Beschichtung. Spot-Lackierungen bzw. vollflächige Lackierungen sind auf unterschiedlichste Bedruckstoffe aufbringbar, beispielsweise im Verpackungsdruck zum Beschichten von Verpackungen. Hierbei wird insbesondere die Schöndruckseite (Oberseite) beschichtet.The coating of substrates is, for example, from EP 0 620 115 A1 known. This is on a substrate preferably applied a multicolor print first, then there is a spot painting or a full surface Varnishing on the substrate as a coating. Spot paintwork or full-surface paints are on the most varied Printing materials can be applied, for example in Packaging printing for coating packaging. in this connection in particular the face side (top side) is coated.

Aus DE 42 11 638 A1 ist bekannt, daß ein Bedruckstoff auch an der Widerdruckseite (Unterseite) beschichtet wird.From DE 42 11 638 A1 it is known that a printing material is also available the reverse side (bottom) is coated.

Von Nachteil ist hierbei, daß beispielsweise im Verpackungsdruck anschließend eine Weiterverarbeitung erforderlich ist. diese Weiterverarbeitung beinhaltet z.B. das Stanzen des Bedruckstoffes in Nutzen entsprechend der gewünschten Verpackungsgröße. Hierbei werden die Kanten des Verpackungsnutzens freigelegt und weisen somit keine Beschichtung auf.The disadvantage here is that, for example, in packaging printing further processing is then required. this further processing includes e.g. punching the Printing material in use according to the desired packaging size. Here, the edges of the packaging benefit exposed and therefore have no coating.

Gemäß DE 41 38 278 A1 ist es bekannt, daß in einem Lackwerk lediglich wahlweise der Bedruckstoff lackiert oder gestanzt oder perforiert oder rilliert wird. Hierbei wird wahlweise die Schöndruckseite oder Widerdruckseite lackiert oder gestanzt oder perforiert oder rilliert. According to DE 41 38 278 A1 it is known that in a coating unit only optionally the printing material is lacquered or punched or perforated or grooved. Here is optional the face or reverse side is painted or punched or perforated or grooved.

[Aufgabe der Erfindung]OBJECT OF THE INVENTION

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren der eingangs beschriebenen Art zu schaffen, das die genannten Nachteile vermeidet, das insbesondere ein universelleres Beschichten von Bedruckstoffen gestattet.The invention has for its object a method of to create the type described above, the above Avoids disadvantages, especially a more universal one Coating of substrates is permitted.

Gelöst wir die Aufgabe durch die Ausbildungsmerkmale von Haupt- und Nebenanspruch. Weiterbildungen ergeben sich aus den Unteransprüchen.We solved the task through the training features of Main and secondary claim. Further training results from the subclaims.

Ein erster Vorteil ist nach dem erfindungsgemäßen Verfahren darin begründet, daß der Bedruckstoff zumindest an den Stoßkanten der Nutzen beschichtet wird. Von Vorteil ist weiterhin daß der Bedruckstoff auch auf der Schöndruck- und/oder Widerdruckseite (Oberseite und/oder Unterseite) in Spotbeschichtung (partielle Beschichtung) und/oder vollflächiger Beschichtung und zusätzlich an den Stoßkanten der Nutzen beschichtet wird.
Dabei stellt der Begriff

Figure 00020001
Nutzen" eine Anzahl von Exemplaren bzw. Einzelteilen dar, die aus einem Bedruckstoff (Papierbahn oder Bogenmaterial) heraustrennbar sind.A first advantage of the process according to the invention is that the printing material is coated at least on the abutting edges of the panels. It is also advantageous that the printing material is also coated on the face and / or reverse side (top and / or bottom) in spot coating (partial coating) and / or full-surface coating and additionally on the abutting edges of the benefit.
The term represents
Figure 00020001
Use "a number of copies or individual parts that can be separated from a printing material (paper web or sheet material).

Ebenso vorteilhaft ist, das verfahrensgemäß beim Verpackungsdruck die Stoßkanten wasserdicht bzw. wasserdampfdicht und ölbeständig beschichtet werden, so daß ein Aufweichen der Stoßkanten durch wässrige oder ölige Flüssigkeiten (im gefüllten Zustand der Verpackung) vermieden wird. Eine Stoßkante im Verpackungsdruck stellt die Kante einer Verpackung, z.B. einer Faltschachtel, dar, die später freiliegend mit dem Füllgut in Berührung ist.It is also advantageous that the procedure for packaging printing the butt edges are waterproof or water vapor tight and be coated oil-resistant, so that a softening of the Bump edges caused by aqueous or oily liquids (in the filled Condition of the packaging) is avoided. A butt edge in packaging printing, the edge of a packaging represents e.g. a folding box, which is later exposed with the Product is in contact.

Erfindungsgemäß wird zumindest von einer perforierten Stoßkante pro Nutzen ausgegangen. Diese Perforation durchtrennt in der Dicke (vollständig oder teilweise) einen Bedruckstoff entlang einer vorgegebenen Kontur, vorzugsweise durch Stanzen, Schneiden von Löchern oder Schlitzen, wobei die Nutzen im Verbund innerhalb des Bedruckstoffes erhalten bleiben.According to the invention, at least one perforated butt edge assumed per benefit. This perforation is severed in the thickness (completely or partially) a printing material along a predetermined contour, preferably by punching, Cutting holes or slots, taking advantage remain in the composite within the substrate.

Die Perforation der Bedruckstoffe ist dabei außerhalb der Druckmaschine, vor dem Beschichtungsvorgang, durchführbar oder ist innerhalb der Druckmaschine (Inline) vor dem Beschichtungsvorgang durchführbar. In bevorzugter Weiterbildung ist die Perforation nicht auf die Stoßkante jedes Nutzens beschränkt, vielmehr ist ebenso die Perforation des gesamten Nutzens vor dem Beschichtungsvorgang durchführbar. Als Beschichtungsfluid eignen sich vorzugsweise im Verpackungsdruck ein Dispersionslack und/oder ein strahlungshärtender Lack mit einer hohen Wasserdichtigkeit, Wasserdampfdichte und Ölbeständigkeit. Insbesondere für das zusätzliche Auftragen von Beschichtungsfluid (nach dem Auftrag von Dispersionslack) eignen sich auch strahlungshärtende Lacke (UV-Lack) als Beschichtungsfluid.The perforation of the substrates is outside the Printing machine, before the coating process, feasible or is inside the printing machine (inline) before the coating process feasible. In preferred training the perforation is not on the butt edge of each panel the perforation of the whole is limited Benefit feasible before the coating process. As a coating fluid are particularly suitable for packaging printing a dispersion lacquer and / or a radiation-curing lacquer with high water resistance, water vapor tightness and oil resistance. Especially for the additional application of Coating fluid (after application of dispersion varnish) radiation-curing lacquers (UV lacquer) are also suitable Coating fluid.

[Beispiele][Examples]

Das erfindungsgemäße Verfahren soll an einem Ausführungsbeispiel näher erläutert werden. Dabei zeigen schematisch:

Fig. 1
eine Offestdruckmaschine mit zwei Lackwerken,
Fig. 2
einen Ausschnitt eines Bedruckstoffes mit Nutzen (Draufsicht),
Fig. 3
ein Detail eines Nutzens (Schnitt A-A),
Fig. 4
ein Detail eines Nutzens (Schnitt B-B).
The method according to the invention will be explained in more detail using an exemplary embodiment. The following schematically show:
Fig. 1
an offset printing machine with two coating units,
Fig. 2
a section of a printing material with benefits (top view),
Fig. 3
a detail of a benefit (section AA),
Fig. 4
a detail of a benefit (section BB).

In einer Offsetdruckmaschine mit mehreren Druckwerken 1 für den Mehrfarbendruck ist einem letzten Druckwerk 1 ein erstes Lackwerk 2 sowie ein zweites Lackwerk 3 in Förderrichtung eines Bedruckstoffes 16 nachgeordnet. Jedes Druckwerk 1 besteht in bekannter Weise aus einem Druckzylinder 11 als Bogenführungszylinder, einem Gummituchzylinder 9, einem Plattenzylinder 8 sowie einem Farbwerk. Bei Bedarf ist dem Plattenzylinder 8 ein Feuchtwerk zugeordnet.In an offset printing machine with several printing units 1 for multi-color printing is a first in a last printing unit 1 Coating unit 2 and a second coating unit 3 in the conveying direction subordinate to a substrate 16. Each printing unit 1 consists in a known manner of a pressure cylinder 11 as Sheet guide cylinder, a blanket cylinder 9, one Plate cylinder 8 and an inking unit. If necessary, that is Plate cylinder 8 assigned a dampening system.

Jedes Lackwerk 2, 3 besteht aus einem Druckzylinder 11 als Bogenführungszylinder, einem Formzylinder 12 und einem Dosiersystem 13 oder 14. Hierbei besteht das Dosiersystem 13 aus einer gerasterten Auftragwalze und einem zugeordneten Kammerrakel, hingegen besteht das Dosiersystem 14 aus einem Zweiwalzenwerk mit Lackzufuhr in den Walzenspalt. Alternativ sind auch andere Dosiersysteme, z.B. mit einer Schöpfwalze, einsetzbar. Die Dosiersysteme 13, 14 sind zwischen den Lackwerken 2, 3 untereinander austauschbar. Dabei ist z.B. das Dosiersystem 13 mit gerasterter Auftragwalze im ersten Lackwerk 2 für Spotbeschichtungen anordbar.Each coating unit 2, 3 consists of a printing cylinder 11 as Sheet guide cylinder, a forme cylinder 12 and a metering system 13 or 14. Here there is the metering system 13 from a screened application roller and an assigned one Chamber doctor blade, however, the metering system 14 consists of a Two-roll mill with coating feed in the nip. Alternatively are other dosing systems, e.g. with a scoop roller, used. The metering systems 13, 14 are between the coating units 2, 3 interchangeable. Here is e.g. the Dosing system 13 with screened application roller in the first coating unit 2 can be arranged for spot coatings.

Die Druckwerke 1 sowie die Lackwerke 2, 3 sind mittels Transfertrommeln 10 als Bogenführungszylinder untereinander in Funktionsverbindung, wie dies bei Druckmaschinen in Reihenbauweise bekannt ist. Zwischen dem letzten Druckwerk 1 und dem ersten Lackwerk 2 ist eine Transfertrommel 10 als Bogenführungszylinder angeordnet. In einer bevorzugten Ausbildung ist zwischen dem letzten Druckwerk 1 und dem ersten Lackwerk 2 ein Wendesystem 15 statt der Transfertrommel 10 zum Wenden der bogenförmigen Bedruckstoffe 16, vorzugsweise nach dem Prinzip der Hinterkantenwendung angeordnet. Dem letzten Lackwerk 3 ist ein Ausleger 5 nachgeordnet, welcher zwecks Ablage der Bedruckstoffe 16 auf einen Auslegerstapel 6 ein umlaufendes Fördersystem 7 mit Greifersystem aufweist. Bei Bedarf ist, zur Verbesserung der Trocknung der Druckfarbe bzw. einer Beschichtung 19 auf dem Bedruckstoff 16, zwischen dem ersten Lackwerk 2 und dem zweiten Lackwerk 3 ein Trocknersystem 4 mit Druckzylinder 11 und wenigstens einer Transfertrommel 10 angeordnet.The printing units 1 and the coating units 2, 3 are by means of transfer drums 10 as sheet guide cylinders with each other in Functional connection, as is the case with printing presses in series is known. Between the last printing unit 1 and the first coating unit 2 is a transfer drum 10 as a sheet guide cylinder arranged. In a preferred training is between the last printing unit 1 and the first coating unit 2 a turning system 15 instead of the transfer drum 10 for turning the sheet-shaped substrates 16, preferably after Principle of trailing edge arranged. The last one Coating unit 3 is a boom 5 downstream, which purpose Storage of the printing materials 16 on a delivery stack 6 revolving conveyor system 7 with gripper system. If necessary, to improve the drying of the printing ink or a coating 19 on the substrate 16, between the first coating unit 2 and the second coating unit 3 a dryer system 4 with printing cylinder 11 and at least one transfer drum 10 arranged.

In Fig. 2 ist ein Ausschnitt (Draufsicht) aus dem bogenförmigen Bedruckstoff 16 gezeigt. Der Bedruckstoff 16 weist mehrere Nutzen 17 auf, welche im Verpackungsdruck, z.B. für Faltschachteln geeignet sind. Jeder Nutzen 17 weist wenigstens eine Stoßkante 18 einer Verpackung auf. Die Stoßkante 18 ist im Verpackungsdruck, z.B. bei Faltschachteln, der Bereich des Bedruckstoffes 16, welcher mit dem Füllgut der Faltschachteln in Kontakt kommt. Werden als Füllgut Flüssigkeiten eingesetzt, so besteht die Gefahr, daß die Stoßkanten 18 von der Flüssigkeit aufgeweicht werden.In Fig. 2 is a section (top view) of the arcuate Printing material 16 shown. The printing substrate 16 has several Benefit 17, which in packaging printing, e.g. for folding boxes are suitable. Each benefit 17 has at least a butt edge 18 of a package. The butt edge is 18 in packaging printing, e.g. for folding boxes, the area of Printing material 16, which contains the contents of the folding boxes comes into contact. If liquids are used as filling material, there is a risk that the abutting edges 18 of the Liquid can be softened.

Zumindest jede Stoßkante 18, vorzugsweise auch der gesamte Nutzen 17, sind bereits vor dem Beschicken der Druckmaschine perforiert oder werden innerhalb der Druckmaschine, z.B. im letzten Druckwerk 1 mittels Perforiereinrichtung, vor dem Beschichten perforiert. Eine Perforation 20 erfolgt durch Stanzen oder Schneiden von aneinander gereihten kleinen Löchern oder Schlitzen und dient dazu den Nutzen 17 (einschließlich der Stoßkante 18) später aus dem Bedruckstoff 16 zu trennen. Die Perforation 20 kann hierbei die volle Dicke 21 des Bedruckstoffes 16 durchdringen (Fig. 3). Alternativ kann die Perforation 20 (einschließlich der Stoßkante 18) auch als Teilperforation (oder Nut) ausgeführt werden, d.h. der Bedruckstoff 16 ist - bei Betrachtung der Dicke 21 - im Bereich der Perforation 20 bzw. Stoßkante 18 noch mit dem Nutzen 17 im Verbund (Figur 4). At least each butt edge 18, preferably also the entire one Benefit 17, are already before loading the printing press perforated or are inside the printing machine, e.g. in the last printing unit 1 by means of perforating device, before Perforated coating. A perforation 20 is made through Punch or cut small strings together Holes or slots and serves the benefit 17 (including the butt edge 18) later from the printing material 16 to separate. The perforation 20 can be the full thickness 21 penetrate the substrate 16 (Fig. 3). Alternatively the perforation 20 (including the butt edge 18) can also be executed as partial perforation (or groove), i.e. the substrate 16 is - when considering the thickness 21 - in Area of the perforation 20 or butt edge 18 still with the Benefits 17 in the network (Figure 4).

Auf den zumindest an der Stoßkante 18 perforierten Bedruckstoff 16 wird eine Beschichtung 19 aus einem wasserdichten, wasserdampfdichten und ölbeständigen Beschichtungsfluid, z.B. einem Dispersionslack aufgetragen. Die Beschichtung 19 ist hierbei einfach oder mehrfach auf den Bedruckstoff 16 aufbringbar. Um das Trocknen des Bedruckstoffes 16 zu beschleunigen ist es vorteilhaft, daß das Beschichtungsfluid mehrfach, d.h. mehrlagig, als Beschichtung 19 aufgebracht wird und dazwischen jeweils der Bedruckstoff getrocknet wird.On the printing material perforated at least on the abutting edge 18 16 is a coating 19 made of a waterproof, water vapor tight and oil resistant coating fluid, e.g. applied a dispersion varnish. The coating 19 is can be applied to the substrate 16 one or more times. To accelerate the drying of the printing material 16 it is advantageous that the coating fluid is used several times, i.e. multilayer, as coating 19 is applied and in between the printing material is dried.

Nach dem zumindest einfach (einlagig) aufgebrachten Beschichtungsfluid wird der Bedruckstoff 16 zumindest einmal getrocknet. Bevorzugt wird nach jeder aufgebrachten Lage der Beschichtung 19 der Bedruckstoff 16 auch getrocknet.After the at least single (single-layer) coating fluid applied the printing material 16 is dried at least once. Is preferred after each applied layer Coating 19 of printing material 16 also dried.

Die Beschichtung 19 wird dabei als Spotbeschichtung (partielle Beschichtung) oder als vollflächige Beschichtung auf den Bedruckstoff 16 aufgebracht. Beispielsweise werden in einfachster Weise lediglich die Stoßkanten 18 mittels Spotbeschichtung beschichtet und versiegelt.The coating 19 is used as a spot coating (partial Coating) or as a full-surface coating on the Printing material 16 applied. For example, in simplest Only the abutting edges 18 by means of spot coating coated and sealed.

Beim Auftragen der Beschichtung 19 auf die Oberfläche des Bedruckstoffes 16 diffundiert das Beschichtungsfluid gleichzeitig in die perforierte Stoßkante 18 ein und versiegelt diese Stoßkante 18. Sind die Nutzen 17 allseitig perforiert, so diffundiert das Beschichtungsfluid neben der Stoßkante 18 auch in die Perforation 20 ein.When applying the coating 19 on the surface of the Printing material 16 diffuses the coating fluid simultaneously into the perforated butt edge 18 and sealed this butt edge 18. If the panels 17 are perforated on all sides, the coating fluid diffuses next to the abutting edge 18 also in the perforation 20.

In einer Weiterbildung ist auch ein mehrfaches Auftragen von Beschichtungsfluid auf den Bedruckstoff 16 als Beschichtung 19 realisierbar, wobei das Beschichtungsfluid wiederum in die Stoßkante 18 sowie - falls bereits vorhanden - in die Perforation 20 eindiffundiert. Hierzu sind bevorzugt wenigstens zwei Lackwerke 2,3 mit zwischengeschaltetem Trocknersystem 4 einsetzbar, wobei bei Bedarf auch weitere Lackwerke 2,3 mit zwischengeschalteten Trocknersystemen 4 einsetzbar sind.In a further training there is also a multiple application of Coating fluid on the substrate 16 as a coating 19 realizable, the coating fluid in turn in the Butt edge 18 and - if already present - in the perforation 20 diffused. At least this is preferred two coating units 2, 3 with interposed dryer system 4 can be used, with additional coating units 2, 3 if required intermediate dryer systems 4 can be used.

Neben dem Dispersionslack ist ebenso ein strahlungshärtender Lack (UV-Lack) als Beschichtungsfluid, vorzugsweise bei mehrfacher Beschichtung 19, einsetzbar.
Um ein mögliches Verschmutzen des Druckzylinders, z.B. durch das Beschichtungsfluid, welches durch die perforierte Stoßkante 18 bzw. die Perforation 20 hindurch treten kann, zu vermeiden, wird auf den Druckzylinder 11 eine dünne Unterlage aufgebracht. Eine derartige Unterlage ist beispielsweise als selbstklebende Unterlagefolie, vorzugsweise aus einem Kunststoff, ausgeführt, welche vom Druckzylinder 11 bei Bedarf abgezogen werden kann. In addition to the dispersion varnish, a radiation-curing varnish (UV varnish) can also be used as the coating fluid, preferably with multiple coating 19.
In order to avoid possible contamination of the printing cylinder, for example by the coating fluid, which can pass through the perforated abutting edge 18 or the perforation 20, a thin base is applied to the printing cylinder 11. Such a base is designed, for example, as a self-adhesive base foil, preferably made of a plastic, which can be removed from the printing cylinder 11 if necessary.

[Bezugszeichenliste][List of reference numerals]

11
DruckwerkPrinting unit
22
erstes Lackwerkfirst coating unit
33
zweites Lackwerksecond coating unit
44
TrocknersystemDryer system
55
Auslegerboom
66
AuslegerstapelBoom stack
77
FördersystemConveyor system
88th
PlattenzylinderPlate cylinder
99
GummituchzylinderBlanket cylinder
1010
TransfertrommelTransfer drum
1111
DruckzylinderImpression cylinder
1212th
FormzylinderForme cylinder
1313
DosiersystemDosing system
1414
DosiersystemDosing system
1515
WendesystemTurning system
1616
BedruckstoffSubstrate
1717
NutzenUse
1818th
StoßkanteButt edge
1919
Beschichtungcoating
2020th
Perforationperforation
2121
Dickethickness

Claims (8)

Verfahren zum Beschichten eines Bedruckstoffes in einer Druckmaschine, vorzugsweise für den Verpackungsdruck,
dadurch gekennzeichnet,
daß der in Nutzen aufgeteilte Bedruckstoff pro Nutzen zumindest eine perforierte Stoßkante einer Verpackung aufweist, daß anschließend zumindest auf diese Stoßkanten eine Beschichtung aus einem wasserdichten, wasserdampfdichten, ölbeständigen Beschichtungsfluid zumindest einfach aufgetragen wird, daß nach der ersten Beschichtung der Bedruckstoff mindestens einmal getrocknet wird und die Beschichtung zumindest in die perforierten Stoßkanten eindiffundiert.Process for coating a printing material in a printing machine, preferably for packaging printing,
characterized,
that the printed substrate divided into panels has at least one perforated butt edge of a package, that a coating of a waterproof, water vapor-tight, oil-resistant coating fluid is then applied at least simply to at least these butt edges, that after the first coating the substrate is dried at least once and the Coating diffuses at least into the perforated abutting edges. Verfahren zum Beschichten eines Bedruckstoffes in einer Druckmaschine, vorzugsweise für den Verpackungsdruck,
dadurch gekennzeichnet,
daß der in Nutzen aufgeteilte Bedruckstoff pro Nutzen zumindest an einer Stoßkante einer Verpackung innerhalb der Druckmaschine perforiert wird, daß anschließend zumindest auf diese Stoßkanten eine Beschichtung aus einem wasserdichten, wasserdampfdichten, ölbeständigen Beschichtungfluid zumindest einfach aufgetragen wird, daß nach der ersten Beschichtung der Bedruckstoff mindestens einmal getrocknet wird und die Beschichtung zumindest in die perforierten Stoßkanten eindiffundiert.Process for coating a printing material in a printing machine, preferably for packaging printing,
characterized,
that the printed substrate divided into panels is perforated per panel at least on one abutting edge of a packaging within the printing machine, that a coating of a waterproof, water vapor-tight, oil-resistant coating fluid is then applied at least simply to these abutting edges, that after the first coating the substrate has been coated at least once is dried and the coating diffuses at least into the perforated abutting edges. Verfahren nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
daß der Bedruckstoff durch die volle Dicke hindurch perforiert ist oder wird. The method of claim 1 or 2,
characterized,
that the printing material is or will be perforated through its full thickness. Verfahren nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
daß der Bedruckstoff teilweise durch die Dicke perforiert ist oder wird.The method of claim 1 or 2,
characterized,
that the substrate is or is partially perforated by the thickness. Verfahren nach wenigstens Anspruch 1 oder 2,
dadurch gekennzeichnet,
daß auf den Bedruckstoff eine Spotbeschichtung oder eine vollflächige Beschichtung aufgetragen wird.Method according to at least claim 1 or 2,
characterized,
that a spot coating or a full-surface coating is applied to the printing material. Verfahren nach wenigstens Anspruch 1 oder 2,
dadurch gekennzeichnet,
daß auf den Bedruckstoff eine Spotbeschichtung und eine vollflächige Beschichtung aufgetragen wird.Method according to at least claim 1 or 2,
characterized,
that a spot coating and a full-surface coating is applied to the printing material. Verfahren nach wenigstens Anspruch 1 oder 2,
dadurch gekennzeichnet,
daß als Beschichtungsfluid ein Dispersionslack und/oder ein strahlungshärtender Lack auf den Bedruckstoff aufgetragen wird.Method according to at least claim 1 or 2,
characterized,
that a dispersion varnish and / or a radiation-curing varnish is applied to the printing material as the coating fluid. Verfahren nach wenigstens Anspruch 1 oder 2 und 7,
dadurch gekennzeichnet,
daß zumindest auf die perforierten Stoßkanten als Beschichtungsfluid ein Dispersionslack aufgetragen wird, anschließend der Bedruckstoff getrocknet wird und danach wenigstens eine zusätzliche Beschichtung mit einem strahlungshärtenden Lack, zumindest auf die Stoßkanten, aufgetragen wird.Method according to at least claim 1 or 2 and 7,
characterized,
that a dispersion varnish is applied at least to the perforated abutting edges as a coating fluid, the printing material is then dried and then at least one additional coating with a radiation-curing varnish, at least on the abutting edges, is applied.
EP99122811A 1998-12-10 1999-11-17 Method for coating a printed material in a printing press Expired - Lifetime EP1008449B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19856857 1998-12-10
DE19856857A DE19856857C2 (en) 1998-12-10 1998-12-10 Process for coating a printing material in a printing press

Publications (2)

Publication Number Publication Date
EP1008449A1 true EP1008449A1 (en) 2000-06-14
EP1008449B1 EP1008449B1 (en) 2003-03-19

Family

ID=7890537

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99122811A Expired - Lifetime EP1008449B1 (en) 1998-12-10 1999-11-17 Method for coating a printed material in a printing press

Country Status (5)

Country Link
EP (1) EP1008449B1 (en)
AT (1) ATE234730T1 (en)
DE (2) DE19856857C2 (en)
DK (1) DK1008449T3 (en)
ES (1) ES2190167T3 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1555133A1 (en) * 2004-01-15 2005-07-20 MAN Roland Druckmaschinen AG Equipment of a printing machine for coating a printed product
WO2006095232A1 (en) * 2005-03-07 2006-09-14 Azionaria Costruzioni Macchine Automatiche A.C.M.A. S.P.A. A method of manufacturing a container made from a diecut blank, and the relative blank
CN113500817A (en) * 2021-06-18 2021-10-15 安庆市来客纸品有限公司 Cutting device for producing environment-friendly paper cups

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10108982A1 (en) * 2001-02-23 2002-09-12 Mitsubishi Hitec Paper Flensbu Heat sensitive recording material and its use

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EP0195287A2 (en) * 1985-03-21 1986-09-24 Unilever N.V. Method of impregnating the free end of a permeable material, and container obtained by such a material
EP0620115A1 (en) * 1993-04-16 1994-10-19 MAN Roland Druckmaschinen AG In-line coating device in printing machines

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DE4211638C2 (en) * 1992-04-07 1995-06-29 Roland Man Druckmasch Process and device for painting and for printing sheets in a coating unit with a printing unit
DE4218422C2 (en) * 1992-06-04 1994-04-28 Heidelberger Druckmasch Ag Sheet-fed offset rotary press with removable imprinting or finishing unit
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DE29617261U1 (en) * 1996-10-04 1996-11-21 Heidelberger Druckmaschinen Ag, 69115 Heidelberg Sheet-fed rotary printing machine

Patent Citations (2)

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Publication number Priority date Publication date Assignee Title
EP0195287A2 (en) * 1985-03-21 1986-09-24 Unilever N.V. Method of impregnating the free end of a permeable material, and container obtained by such a material
EP0620115A1 (en) * 1993-04-16 1994-10-19 MAN Roland Druckmaschinen AG In-line coating device in printing machines

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1555133A1 (en) * 2004-01-15 2005-07-20 MAN Roland Druckmaschinen AG Equipment of a printing machine for coating a printed product
US7451698B2 (en) 2004-01-15 2008-11-18 Manroland Ag Device for producing a coating on printed products from a printing press
WO2006095232A1 (en) * 2005-03-07 2006-09-14 Azionaria Costruzioni Macchine Automatiche A.C.M.A. S.P.A. A method of manufacturing a container made from a diecut blank, and the relative blank
CN113500817A (en) * 2021-06-18 2021-10-15 安庆市来客纸品有限公司 Cutting device for producing environment-friendly paper cups
CN113500817B (en) * 2021-06-18 2024-01-30 安庆市来客纸品有限公司 Cutting device for environment-friendly paper cup production

Also Published As

Publication number Publication date
DK1008449T3 (en) 2003-07-14
ATE234730T1 (en) 2003-04-15
DE59904612D1 (en) 2003-04-24
DE19856857C2 (en) 2003-12-18
DE19856857A1 (en) 2000-06-21
EP1008449B1 (en) 2003-03-19
ES2190167T3 (en) 2003-07-16

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