EP0368180B1 - Process for the production of images in a printing cylinder - Google Patents
Process for the production of images in a printing cylinder Download PDFInfo
- Publication number
- EP0368180B1 EP0368180B1 EP89120430A EP89120430A EP0368180B1 EP 0368180 B1 EP0368180 B1 EP 0368180B1 EP 89120430 A EP89120430 A EP 89120430A EP 89120430 A EP89120430 A EP 89120430A EP 0368180 B1 EP0368180 B1 EP 0368180B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cylinder
- substance
- printing form
- transfer
- form 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.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title claims description 15
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 238000007639 printing Methods 0.000 title description 34
- 239000000126 substance Substances 0.000 claims description 15
- 238000007645 offset printing Methods 0.000 claims description 8
- 229920001971 elastomer Polymers 0.000 claims description 4
- 229920000459 Nitrile rubber Polymers 0.000 claims description 2
- 239000004800 polyvinyl chloride Substances 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 3
- 238000003384 imaging method Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- -1 aluminum oxide Chemical class 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007651 thermal printing Methods 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
- B41C1/00—Forme preparation
- B41C1/10—Forme preparation for lithographic printing; Master sheets for transferring a lithographic image to the forme
- B41C1/1091—Forme preparation for lithographic printing; Master sheets for transferring a lithographic image to the forme by physical transfer from a donor sheet having an uniform coating of lithographic material using thermal means as provided by a thermal head or a laser; by mechanical pressure, e.g. from a typewriter by electrical recording ribbon therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
- B41C1/00—Forme preparation
- B41C1/10—Forme preparation for lithographic printing; Master sheets for transferring a lithographic image to the forme
- B41C1/1075—Mechanical aspects of on-press plate preparation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2227/00—Mounting or handling printing plates; Forming printing surfaces in situ
- B41P2227/70—Forming the printing surface directly on the form cylinder
Definitions
- the invention relates to a method for imaging a printing form cylinder in a printing press according to the preamble of patent claim 1.
- an offset printing press which has an electronically controlled pixel transmission unit. This is designed, for example, as a thermal print head and, according to digital image information, removes substance parts from a continuously coated thermal transfer film and places them directly on the printing form cylinder.
- thermal print head - thermal transfer film - printing form cylinder spacing and contact fluctuations can occur if both the pin electrodes or heating elements of the thermal printing head and the surface of the printing form cylinder are rigid and inelastic.
- the surface of the printing form cylinder is made of aluminum. Even the smallest deviations in shape of one of the parts involved impair the effective contact pressure and thus the heat transfer, which is reflected in an unevenly transmitted print image or poorly anchored print image elements.
- a printing form is known from EP 0 264 604 A2, which is also coated by the thermal transfer process. Its surface is also made of aluminum, chrome, a metal oxide such as aluminum oxide, a ceramic material or a plastic. This surface is characterized by a high Print run resistance, but has the disadvantages mentioned above.
- FR 457 270 From FR 457 270 a method and an apparatus for the production of printing plates are known, which are used in machines for producing prints on rubber or other plastic materials. This machine has two cylinders that are in contact with each other and coated with a rubber layer. However, no device for substance application is provided on the cylinders, especially not by the thermal transfer method.
- the invention has for its object to provide a method in which the above disadvantages are avoided and even with relatively large manufacturing tolerances of the parts involved in the substance transfer, a uniform transfer is guaranteed.
- This object is achieved in that the substance is applied, at least in the alternative, to a soft surface of a cylinder of the offset printing press.
- This feature includes variants on the one hand the direct interaction of the pixel transfer unit with a printing form cylinder that has a soft surface and on the other hand the interposition of another cylinder with a soft surface - for example the blanket cylinder of an offset printing machine - from where in a second Transfer step the transfer to the printing form cylinder takes place.
- a three-cylinder printing unit of a web-fed offset printing press is shown schematically.
- a printing material web 3 is passed between a printing cylinder 1 and a blanket cylinder 2 during the printing process.
- the blanket cylinder 2 serves as a transfer cylinder for a print image generated by the surface of a printing form cylinder 4.
- the printing form cylinder 4 has an elastomeric surface with a preferably hydrophilic property.
- Acrylic ester rubber, nitrile rubber or modified polyvinyl chloride (PVC), for example, are suitable as materials for such a surface.
- a pixel transfer unit 5 which consists of a thermal print head 7 equipped with a plurality of heatable heating elements 6 or pen electrodes, one of which parallel to a surface line of the printing form cylinder 4 leading guide bar 8 and a control unit 9.
- the control unit 9 is connected via a signal line 10 to the thermal print head 7 which can be moved along the guide bar 8 and via a further signal line 11 to a preferably electronic image memory 12.
- a thermal transfer film 13 is arranged between the printing form cylinder 4 and the heating elements 6 of the thermal print head.
- the thermal transfer film 13 is continuously coated on its side facing the printing form cylinder 4 with a substance 14 which is meltable when supplied with energy and solid at room temperature and which preferably has oleophilic properties.
- a substance 14 which is meltable when supplied with energy and solid at room temperature and which preferably has oleophilic properties.
- wax or a thermoplastic material are suitable as substance 14.
- the thermal transfer film 13 is wound on a drum 17 and is used to image the printing form cylinder 4 together with the image transfer unit so far that it touches the surface of the same in one part.
- a further drum 18 is provided for winding up the part of the thermal transfer film 13 used in the imaging.
- the control unit 9 To transfer parts 14 a of the substance 14 to the printing form cylinder 4, the control unit 9 first reads image information digitally stored there for each pixel from the image memory 12 and activates one of the heating elements 6 of the thermal printhead depending on whether an image point is to transfer color or not 7.
- the heating elements 6 placed on the thermal transfer film 13 are acted upon with energy if a pixel is to be color-guiding.
- the energy can be generated directly as thermal energy in the heating elements or can be released in the case of training as pin electrodes by their interaction with a thermal transfer film formed from several layers of different electrical resistance according to the "resistive ribbon method".
- the substance parts 14 a melted by the action of energy are deposited on the surface of the printing form cylinder 4 and solidify there very quickly.
- the fact that the surface of the printing form cylinder 4 is provided with a soft layer means that the manufacturing accuracy of the print head and the guide bar as well as the printing form cylinder are not subject to excessive demands.
- the substance parts are transferred pixel by pixel line by line, when using several heating elements 6 (or pin electrodes) in several lines in parallel.
- the feed of the print head 7 and the further rotation of the printing form cylinder 4 after transmission of one (or more image line (s) generated in parallel) are also controlled by the control unit 9.
- both the printing form cylinder 4 or 15 and the blanket cylinder 2 or 2 'can advantageously be provided with a seamless surface.
- a print head that extends over the entire width of the printing form cylinder can also be used, which is either formed in one piece or is composed of several parts that are offset with respect to one another in the direction of travel of the transfer film.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Optics & Photonics (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture Or Reproduction Of Printing Formes (AREA)
- Electronic Switches (AREA)
- Rotary Presses (AREA)
- Thermal Transfer Or Thermal Recording In General (AREA)
- Printing Plates And Materials Therefor (AREA)
Description
Die Erfindung betrifft ein Verfahren zur Bebilderung eines Druckformzylinders in einer Druckmaschine gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to a method for imaging a printing form cylinder in a printing press according to the preamble of patent claim 1.
Sie bezieht sich ebenfalls auf eine Vorrichtung zur Durchführung des Verfahrens gemäß dem Oberbegriff des Patentanspruchs 4.It also relates to an apparatus for performing the method according to the preamble of patent claim 4.
Aus der DE 32 48 178 C2 ist eine Offsetdruckmaschine bekannt, die eine elektronisch gesteuerte Bildpunkt- Übertragungseinheit aufweist. Diese ist beispielsweise als Wärmedruckkopf ausgebildet und löst entsprechend einer digitalen Bildinformation aus einer durchgehend beschichteten Thermotransferfolie Substanzteile heraus und legt diese unmittelbar auf dem Druckformzylinder ab.From DE 32 48 178 C2 an offset printing press is known which has an electronically controlled pixel transmission unit. This is designed, for example, as a thermal print head and, according to digital image information, removes substance parts from a continuously coated thermal transfer film and places them directly on the printing form cylinder.
In der Anordnung Wärmedruckkopf - Thermotransferfolie - Druckformzylinder können Abstands- und Kontaktschwankungen auftreten, wenn sowohl die Stiftelektroden oder Heizelemente des Wärmedruckkopfes als auch die Oberfläche des Druckformzylinders starr und unelastisch ausgeführt sind. Die Oberfläche des Druckformzylinders besteht aus Aluminium. Bereits kleinste Formabweichungen an einem der beteiligten Teile beeinträchtigen den wirksamen Anpreßdruck und somit die Wärmeübertragung, was sich in einem ungleichmäßig übertragenen Druckbild oder schlecht verankerten Druckbildelementen niederschlägt.In the arrangement of the thermal print head - thermal transfer film - printing form cylinder, spacing and contact fluctuations can occur if both the pin electrodes or heating elements of the thermal printing head and the surface of the printing form cylinder are rigid and inelastic. The surface of the printing form cylinder is made of aluminum. Even the smallest deviations in shape of one of the parts involved impair the effective contact pressure and thus the heat transfer, which is reflected in an unevenly transmitted print image or poorly anchored print image elements.
Aus der EP 0 264 604 A2 ist eine Druckform bekannt, die ebenfalls nach dem Thermotransferverfahren beschichtet wird. Ihre Oberfläche besteht entweder ebenfalls aus Aluminium, aus Chrom, einem Metalloxid z.B. Aluminiumoxid, einem Keramikmaterial oder einem Kunststoff. Diese Oberfläche zeichnet sich zwar durch eine hohe Auflagenbeständigkeit auf, weist jedoch die oben genannten Nachteile auf.A printing form is known from EP 0 264 604 A2, which is also coated by the thermal transfer process. Its surface is also made of aluminum, chrome, a metal oxide such as aluminum oxide, a ceramic material or a plastic. This surface is characterized by a high Print run resistance, but has the disadvantages mentioned above.
Aus der FR 457 270 sind ein Verfahren und eine Vorrichtung zur Herstellung von Druckplatten bekannt, die bei Maschinen zum Herstellen von Abzügen auf Kautschuk oder anderen plastischen Materialien verwendet werden. Diese Maschine weist zwei Zylinder auf, die miteinander in Kontakt stehen und mit einer Kautschukschicht beschichtet sind. An den Zylindern ist jedoch keine Vorrichtung zum Substanzauftrag, insbesondere nicht nach dem Thermotransfer-Verfahren vorgesehen.From FR 457 270 a method and an apparatus for the production of printing plates are known, which are used in machines for producing prints on rubber or other plastic materials. This machine has two cylinders that are in contact with each other and coated with a rubber layer. However, no device for substance application is provided on the cylinders, especially not by the thermal transfer method.
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren anzugeben, bei dem die vorstehenden Nachteile vermieden werden und auch bei relativ großen Fertigungstoleranzen der an der Substanzübertragung beteiligten Teile eine gleichmäßige Übertragung gewährleistet ist.The invention has for its object to provide a method in which the above disadvantages are avoided and even with relatively large manufacturing tolerances of the parts involved in the substance transfer, a uniform transfer is guaranteed.
Diese Aufgabe wird dadurch gelöst, daß der Substanzauftrag zumindestens hilfsweise auf eine weiche Oberfläche eines Zylinders der Offsetdruckmaschine erfolgt. Dieses Merkmal umfaßt als Varianten zum einen das unmittelbare Zusammenwirken der Bildpunkt-Übertragungseinheit mit einem Druckformzylinder, der eine weiche Oberfläche aufweist und zum anderen die Zwischenschaltung eines anderen Zylinders mit weicher Oberfläche - beispielsweise des Gummituchzylinders einer Offset-Druckmaschine -, von wo aus in einem zweiten Transferschritt die Übertragung an den Druckformzylinder erfolgt.This object is achieved in that the substance is applied, at least in the alternative, to a soft surface of a cylinder of the offset printing press. This feature includes variants on the one hand the direct interaction of the pixel transfer unit with a printing form cylinder that has a soft surface and on the other hand the interposition of another cylinder with a soft surface - for example the blanket cylinder of an offset printing machine - from where in a second Transfer step the transfer to the printing form cylinder takes place.
Durch die Kompressibilität einer weichen Oberfläche können Linearitätsschwankungen längs der Aufzeichnungslinie wirksam kompensiert werden. Durch die damit mögliche großzügigere Tolerierung der beteiligten Komponenten werden die Fertigungskosten erheblich reduziert.Due to the compressibility of a soft surface, linearity fluctuations along the recording line can be effectively compensated for. Due to the more generous tolerance of the components involved, the manufacturing costs are considerably reduced.
Es ist ebenfalls die Aufgabe der Erfindung, eine Vorrichtung zur Durchführung des Verfahrens zu schaffen.It is also the object of the invention to create a device for carrying out the method.
Diese Aufgabe wird, wie im Patentanspruch 4 angegeben, gelöst.This object is, as stated in claim 4, solved.
Nachfolgend ist je ein Ausführungsbeispiel für die Erfindung anhand zweier Figuren erklärt.
- Fig. 1
- zeigt die Direktbebilderung eines Druckformzylinders in einem Transferschritt;
- Fig. 2
- zeigt die Bebilderung eines Druckformzylinders unter Zwischenschaltung eines Übertragungszylinders in zwei Transferschritten.
- Fig. 1
- shows the direct imaging of a printing form cylinder in a transfer step;
- Fig. 2
- shows the illustration of a printing form cylinder with the interposition of a transfer cylinder in two transfer steps.
In Fig. 1 ist schematisch ein Dreizylinderdruckwerk einer Rollenrotations- Offsetdruckmaschine dargestellt. Zwischen einem Druckzylinder 1 und einem Gummituchzylinder 2 wird beim Druckvorgang eine Bedruckstoffbahn 3 hindurchgeführt. Der Gummituchzylinder 2 dient als Übertragungszylinder für ein durch die Oberfläche eines Druckformzylinders 4 erzeugtes Druckbild. Der Druckformzylinder 4 weist eine elastomere Oberfläche mit vorzugsweise hydrophiler Eigenschaft auf. Als Materialien für eine solche Oberfläche sind beispielsweise Acrylester- Kautschuk, Nitrilkautschuk oder modifiziertes Polyvinylchlorid (PVC) geeignet.In Fig. 1, a three-cylinder printing unit of a web-fed offset printing press is shown schematically. A
Zur Erzeugung des Druckbildes auf der Oberfläche des Druckformzylinders ist eine Bildpunkt- Übertragungseinheit 5 vorgesehen, die sich aus einem mit mehreren beheizbaren Heizelementen 6 oder Stiftelektroden bestückten Thermodruckkopf 7, einer diesen parallel zu einer Mantellinie des Druckformzylinders 4 führenden Führungsleiste 8 und einer Steuereinheit 9 zusammensetzt. Die Steuereinheit 9 ist über eine Signalleitung 10 mit dem längs der Führungsleiste 8 verfahrbaren Thermodruckkopf 7 und über eine weitere Signalleitung 11 mit einem vorzugsweise elektronischen Bildspeicher 12 verbunden.To generate the print image on the surface of the printing form cylinder, a pixel transfer unit 5 is provided, which consists of a thermal print head 7 equipped with a plurality of
Zwischen Druckformzylinder 4 und den Heizelementen 6 des Thermodruckkopfes ist eine Thermotransferfolie 13 angeordnet. Die Thermotransferfolie 13 ist auf ihrer dem Druckformzylinder 4 zugewandten Seite durchgehend mit einer bei Energiezufuhr schmelzbaren, bei Raumtemperatur festen Substanz 14 beschichtet, die vorzugsweise oleophile Eigenschaften aufweist. Als Substanz 14 eignen sich beispielsweise Wachs oder ein thermoplastischer Kunststoff. Die Thermotransferfolie 13 ist auf einer Trommel 17 aufgespult und wird zur Bebilderung des Druckformzylinders 4 mitsamt der Bildpunkt- Übertragungseinheit soweit an diesen angestellt, daß sie die Oberfläche desselben in einem Teil berührt. Zum Aufspulen des beim Bebildern benutzten Teils der Thermotransferfolie 13 ist eine weitere Trommel 18 vorgesehen.A
Zum Übertragen von Teilen 14 a der Substanz 14 auf den Druckformzylinder 4 liest die Steuereinheit 9 zunächst aus dem Bildspeicher 12 dort für jeden Bildpunkt digital gespeicherte Bildinformationen aus und aktiviert je nachdem, ob ein Bildpunkt Farbe übertragen soll oder nicht, eines der Heizelemente 6 des Thermodruckkopfes 7. Die an die Thermotransferfolie 13 angestellten Heizelemente 6 werden, wenn ein Bildpunkt farbführend sein soll, mit Energie beaufschlagt. Die Energie kann direkt als Wärmeenergie in den Heizelementen erzeugt werden oder bei einer Ausbildung als Stiftelektroden durch deren Zusammenwirken mit einer aus mehreren Schichten verschiedenen elektrischen Widerstandes gebildeten Thermotransferfolie nach der "resistive- ribbon-Methode" freigesetzt werden. Die durch die Energieeinwirkung erschmolzenen Substanzteile 14 a lagern sich auf der Oberfläche des Druckformzylinders 4 ab und erstarren dort sehr schnell.To transfer parts 14 a of the
Dadurch, daß die Oberfläche des Druckformzylinders 4 mit einer weichen Schicht versehen ist, werden an die Fertigungsgenauigkeit des Druckkopfes und der Führungsleiste sowie des Druckformzylinders keine übertrieben hohen Anforderungen gestellt.The fact that the surface of the printing form cylinder 4 is provided with a soft layer means that the manufacturing accuracy of the print head and the guide bar as well as the printing form cylinder are not subject to excessive demands.
Die Übertragung der Substanzteile erfolgt bildpunktweise Zeile für Zeile, bei Verwendung mehrerer Heizelemente 6 (oder Stiftelektroden) in mehreren Zeilen parallel. Der Vorschub des Druckkopfes 7 sowie die Weiterdrehung des Druckformzylinders 4 nach Übertragung einer (oder mehrerer parallel erzeugter) Bildpunktzeile(n) werden ebenfalls durch die Steuereinheit 9 kontrolliert.The substance parts are transferred pixel by pixel line by line, when using several heating elements 6 (or pin electrodes) in several lines in parallel. The feed of the print head 7 and the further rotation of the printing form cylinder 4 after transmission of one (or more image line (s) generated in parallel) are also controlled by the
Bei der in Fig. 2 gezeigten Variante sind alle zur Fig. 1 gleichen Teile mit gleicher Bezugszahl, ergänzt durch "'" bezeichnet. Eine zur Bildpunkt- Übertragungseinheit 5 des ersten Ausführungsbeispiels analoge Einrichtung 5′ ist an einen Gummituchzylinder 2′ einer Rollenrotations- Offsetdruckmaschine angestellt. Die Substanzteile 14 a′ werden mittels der Bildpunkt- Übertragungseinheit 5′ in einem ersten Transferschritt aus einer Thermotransferfolie 13′ herausgelöst und an die weiche Oberfläche des Gummituchzylinders 2′ übertragen. Auf den Gummituchzylinder 2′ ist kurz vor dessen Berührungslinie mit einem Druckformzylinder 15 eine Heizeinrichtung 16 gerichtet, mittels der die auf dem Gummituchzylinder 2′ nach dem ersten Transferschritt erstarrten und somit zwischengelagerten Substanzteile 14 a′ erneut geschmolzen und nunmehr zeilenweise in einem zweiten Transferschritt an den Druckformzylinder 15 übertragen werden. Dadurch, daß hierbei die weiche Oberfläche des Gummituchzylinders 2′ an die harte Oberfläche des Druckformzylinders 15 angedrückt wird, können auch bei diesem zweiten Transferschritt Formabweichungen der beteiligten Zylinder gut ausgeglichen werden.In the variant shown in FIG. 2, all the parts that are the same as in FIG. 1 are identified by the same reference number, supplemented by "" ". An analogous to the pixel transmission unit 5 of the first embodiment 5 'is employed on a blanket cylinder 2' of a web-fed offset printing machine. The substance parts 14 a 'are separated by means of the pixel transfer unit 5' in a first transfer step from a thermal transfer film 13 'and transferred to the soft surface of the blanket cylinder 2'. On the blanket cylinder 2 'is directed shortly before its line of contact with a
Bei beiden Varianten können sowohl der Druckformzylinder 4 bzw. 15 als auch der Gummituchzylinder 2 bzw. 2′ vorteilhaft mit einer nahtlosen Oberfläche versehen sein.In both variants, both the
Als Variante zu einem längs einer Führung verfahrbaren Druckkopf kann auch ein über die gesamte Breite des Druckformzylinders reichender Druckkopf eingesetzt werden, der entweder einstückig ausgebildet ist oder sich aus mehreren, in Laufrichtung der Transferfolie gesehen gegeneinander versetzten Teilen zusammensetzt.As a variant of a print head that can be moved along a guide, a print head that extends over the entire width of the printing form cylinder can also be used, which is either formed in one piece or is composed of several parts that are offset with respect to one another in the direction of travel of the transfer film.
Claims (9)
- Process for the production of images on a forme cylinder (4, 15) in a rotary offset printing machine by means of an image-adequate application of a substance, affecting the ink transport, on to parts of the forme cylinder (4, 15) surface by an image point transfer unit (5, 5') working according to the thermo-transfer process, characterised in that the application of a substance is effected at least in an auxiliary way on to a soft surface of a cylinder in the rotary offset printing machine.
- Process according to claim 1, characterised in that the image point-transfer unit (5) transfers portions (14a) of a substance (14), which affects the ink transport, directly onto the forme cylinder (4).
- Process according to claim 1, characterised in that the image point-transfer unit (5') transfers portions (14a') of a substance (14') onto a blanket cylinder (2').
- Device for carrying out the process according to claim 1, characterised in that the image point-transfer unit (5, 5') is set onto the soft surface of a cylinder in the rotary offset printing machine.
- Device according to claim 4, characterised in that the cylinder is the forme cylinder (4).
- Device according to claim 4, characterised in that the cylinder is the blanket cylinder (2').
- Device according to claim 5, characterised in that the surface of the forme cylinder (4) is made of acrylic-ester-rubber, nitrile rubber or modified polyvinyl chloride (PVC).
- Device according to claim 5 or 7, characterised in that the forme cylinder (4, 15) has a seamless surface.
- Device according to claim 6, characterised in that the blanket cylinder (2') has a seamless surface.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3837978 | 1988-11-09 | ||
| DE3837978A DE3837978A1 (en) | 1988-11-09 | 1988-11-09 | METHOD FOR IMAGING A PRINT FORM CYLINDER |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0368180A2 EP0368180A2 (en) | 1990-05-16 |
| EP0368180A3 EP0368180A3 (en) | 1990-11-22 |
| EP0368180B1 true EP0368180B1 (en) | 1993-10-20 |
Family
ID=6366798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP89120430A Expired - Lifetime EP0368180B1 (en) | 1988-11-09 | 1989-11-04 | Process for the production of images in a printing cylinder |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0368180B1 (en) |
| JP (1) | JP2974699B2 (en) |
| DE (2) | DE3837978A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10121827A1 (en) * | 2001-05-04 | 2002-12-05 | Roland Man Druckmasch | Printing unit with reversible imaging and digital conversion |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19811029C2 (en) | 1998-03-13 | 2000-02-24 | Roland Man Druckmasch | Regulation of the speeds in a method and device for producing a thermal transfer print using ribbon-shaped transfer films |
| DE69907867T2 (en) * | 1999-04-27 | 2004-03-11 | Agfa-Gevaert | Process for making a lithographic printing plate |
| DE19947225A1 (en) * | 1999-10-01 | 2001-04-12 | Koenig & Bauer Ag | Process for the treatment of printing plates in printing machines |
| DE10030599A1 (en) * | 2000-06-21 | 2002-01-03 | Koenig & Bauer Ag | Method and device in printing machines for applying imageable layers |
| DE10030601A1 (en) * | 2000-06-21 | 2002-01-03 | Koenig & Bauer Ag | Method and device in printing machines for applying layers bearing image information |
| DE10153794A1 (en) * | 2001-10-31 | 2003-05-22 | Roland Man Druckmasch | Method and device for integrated printing form generation in a processing machine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3248178C2 (en) * | 1982-12-27 | 1987-02-19 | Forschungsgesellschaft Druckmaschinen E.V., 6000 Frankfurt | Image-based coating of printing plates for planographic printing |
| EP0363842A2 (en) * | 1988-10-08 | 1990-04-18 | M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft | Process for the production of printing plates |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR457270A (en) * | 1913-04-30 | 1913-09-15 | J Voirin Des Ets | Method and device for the direct production of printing plates used in transfer machines on rubber or other plastics |
| NL269626A (en) * | 1960-09-28 | |||
| US3299807A (en) * | 1963-10-22 | 1967-01-24 | Minnesota Mining & Mfg | Direct imaging of offset plates |
| DE3636129A1 (en) * | 1986-10-23 | 1988-05-05 | Man Technologie Gmbh | PRINT FORM FOR FLAT PRINTING |
| DE3809915A1 (en) * | 1988-03-24 | 1989-10-05 | Man Technologie Gmbh | Method for transferring printing images in lithoprinting |
-
1988
- 1988-11-09 DE DE3837978A patent/DE3837978A1/en active Granted
-
1989
- 1989-11-04 EP EP89120430A patent/EP0368180B1/en not_active Expired - Lifetime
- 1989-11-04 DE DE89120430T patent/DE58905972D1/en not_active Expired - Lifetime
- 1989-11-08 JP JP1288974A patent/JP2974699B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3248178C2 (en) * | 1982-12-27 | 1987-02-19 | Forschungsgesellschaft Druckmaschinen E.V., 6000 Frankfurt | Image-based coating of printing plates for planographic printing |
| EP0363842A2 (en) * | 1988-10-08 | 1990-04-18 | M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft | Process for the production of printing plates |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10121827A1 (en) * | 2001-05-04 | 2002-12-05 | Roland Man Druckmasch | Printing unit with reversible imaging and digital conversion |
| DE10121827B4 (en) * | 2001-05-04 | 2005-12-22 | Man Roland Druckmaschinen Ag | Printing unit with reversible imaging and digital conversion |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0368180A3 (en) | 1990-11-22 |
| DE58905972D1 (en) | 1993-11-25 |
| EP0368180A2 (en) | 1990-05-16 |
| DE3837978C2 (en) | 1990-08-16 |
| JP2974699B2 (en) | 1999-11-10 |
| DE3837978A1 (en) | 1990-05-10 |
| JPH02172740A (en) | 1990-07-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0225509B2 (en) | Device for printing a web | |
| DE19530284C2 (en) | Ink transfer methods and apparatus | |
| DE3248178C2 (en) | Image-based coating of printing plates for planographic printing | |
| EP1170122B1 (en) | Device for imaging surfaces in printing machines | |
| DE69724161T2 (en) | Device for producing information-bearing gelatin capsules | |
| DE3109964A1 (en) | "COLLECTIVE PRINTING MACHINE PRINTER FOR SECURITIES PRINTING" | |
| DE3415827C2 (en) | ||
| DE19939240C2 (en) | Method and device for reversibly imaging a printing form | |
| EP0368180B1 (en) | Process for the production of images in a printing cylinder | |
| CH655054A5 (en) | COLLECTIVE PRINTING MACHINE PRINTER FOR SECURITIES PRINTING. | |
| EP0368179B1 (en) | Process and apparatus for integrated printing form production at an offset machine | |
| DE3837941C2 (en) | ||
| DE2259085A1 (en) | INK UNIT FOR FLAT PRINTING MACHINES | |
| DE3303988A1 (en) | INK | |
| EP0453855A1 (en) | Preparation of the inking unit of a printing machine when changing the printing order | |
| DE3040388A1 (en) | SHEET PRINTING MACHINE WITH AT LEAST ONE PRINTING UNIT FOR BEAUTIFUL AND REPRINTING | |
| EP0428894A2 (en) | Method of preparing a printing unit and printing unit adapted for this method | |
| DE10121827A1 (en) | Printing unit with reversible imaging and digital conversion | |
| EP0085752A1 (en) | Printing unit for a rotary offset machine | |
| DE3837979C2 (en) | Device for direct imaging of a printing form cylinder | |
| DE19706295A1 (en) | Thermal transfer printing process, being flexible and solvent=free | |
| CH655055A5 (en) | COLLECTIVE PRINTING MACHINE PRINTER FOR SECURITIES PRINTING. | |
| DE4137629C2 (en) | Printing machine with electrochemically changeable printing form | |
| EP0412179A1 (en) | Inking device for a thermal transfer printer | |
| DE4235184A1 (en) | Sheet prodn. process for producing watermarks in thermal printer - involves heating proof material carrying film in dot form to transmit proof material to sheet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): DE FR GB NL SE |
|
| PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
| AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): DE FR GB NL SE |
|
| 17P | Request for examination filed |
Effective date: 19901018 |
|
| 17Q | First examination report despatched |
Effective date: 19920915 |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE FR GB NL SE |
|
| REF | Corresponds to: |
Ref document number: 58905972 Country of ref document: DE Date of ref document: 19931125 |
|
| ET | Fr: translation filed | ||
| GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 19940125 |
|
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed | ||
| EAL | Se: european patent in force in sweden |
Ref document number: 89120430.7 |
|
| 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: NL Payment date: 20031030 Year of fee payment: 15 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 20031103 Year of fee payment: 15 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20041105 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050601 |
|
| EUG | Se: european patent has lapsed | ||
| NLV4 | Nl: lapsed or anulled due to non-payment of the annual fee |
Effective date: 20050601 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20081121 Year of fee payment: 20 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: CD |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20081113 Year of fee payment: 20 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20081117 Year of fee payment: 20 |
|
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: PE20 Expiry date: 20091103 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20091103 |