EP0889782B1 - Process for printing a carrier material - Google Patents
Process for printing a carrier material Download PDFInfo
- Publication number
- EP0889782B1 EP0889782B1 EP97918020A EP97918020A EP0889782B1 EP 0889782 B1 EP0889782 B1 EP 0889782B1 EP 97918020 A EP97918020 A EP 97918020A EP 97918020 A EP97918020 A EP 97918020A EP 0889782 B1 EP0889782 B1 EP 0889782B1
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- EP
- European Patent Office
- Prior art keywords
- printing
- water
- carrier
- print carrier
- 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
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-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F7/00—Rotary lithographic machines
- B41F7/20—Details
- B41F7/24—Damping devices
Definitions
- the invention relates to a printing method for generating a Print image on a substrate in which a print carrier is provided, the surface of which according to the structure of the printed image to be printed is exposed to water vapor.
- a print medium for example a printing plate, a printing tape or a printing template
- partially printing corresponding to the print image to be printed Areas formed during the printing process
- Color can be colored and then the carrier material print with the color.
- Various methods are known in printing areas. For example, the DIRECT IMAGING process from the company Heidelberger Druckmaschinen, on which on a silicone-coated Film by partially burning away the silicone layer a print template is created, the silicone-free Adjust the color during the printing process and print on the carrier material.
- Another known one Processes become hydrophobic and hydrophilic on the print medium Areas according to the structure of the print Print image generated.
- US-A-3 072 049 and US-A-2 002 815 are printing devices known, each after a printing process work in creating the thin moisture film on the surface of the print medium instead of the Use of application rollers or spray devices Water vapor on the hydrophilic areas of the print medium brought. Again, the surface of the print carrier is which is exposed to water vapor, accordingly the structures of the printed image to be printed in divided into hydrophobic and hydrophilic areas.
- the invention provides a printing method, at which the surface of the print carrier is selective and partial is so acted upon by steam that on the The surface is a partial water film that produces the printed image trains.
- this printing method can on the use of a Print carrier, on the surface of which hydrophilic and hydrophobic Areas are formed, so that additional Steps are eliminated.
- the chemically pretreated Print carrier uses the selective printing method Water use a pressure carrier with even Surface on which the water film resulting from the printed image is applied. This makes it possible within a Printing process to change the print template so that the printing process works with very high flexibility.
- this printing process is also the use of an intermediate carrier, for example a blanket or a roller with rubberized Surface, proposed, which adapts to the different adapts used carrier materials.
- an intermediate carrier for example a blanket or a roller with rubberized Surface
- a radiation source for example a laser with deflection and focusing optics, high-temperature lamps or laser diode arrays, and / or a heat source, such as Heating elements, thermal combs or microwave elements Places
- a radiation source for example a laser with deflection and focusing optics, high-temperature lamps or laser diode arrays, and / or a heat source, such as Heating elements, thermal combs or microwave elements Places
- a heat source such as Heating elements, thermal combs or microwave elements Places
- a vaporization device with a Water supply instead of of a dampened fabric tape opposite the surface of the pressure carrier a vaporization device with a Water supply arranged.
- the steaming device has one Variety of wells filled with water, in each at least one heating element is provided which is independent of the other heating elements can be operated. By applying the heating elements are selectively activated by pulses, so that the water in the well is evaporated and condensed on the overlying print carrier. By Varying the amount of energy supplied can change the amount of steam defined changes. There is also the possibility the resulting water film selectively in its strength to design.
- FIG. 1 describes a first embodiment of a vapor deposition device 70 for selective steaming of the printing tape 72 of a printing device 74 (cf. FIG. 2).
- Evaporator 70 has a driven in the direction of movement of the printing belt 72, arranged in parallel with a small distance to the printing belt 72 Fabric tape 76, which by a roller system (not shown) is continuously moistened with water.
- Heating device extending transversely to its direction of movement (not shown) provided.
- This heater has a large number in the longitudinal direction side by side radiation sources 78 arranged in a row, which are selective and can be activated independently of each other.
- FIG. 2 shows a schematic representation of the printing device 74, in which the first embodiment described in FIG. 1 the vaporization device 70 is used.
- the Printing device 74 has a driven, clockwise rotating conveyor roller 80, shown on the left in Figure 2 is, as well as an approximately at the same height, in Figure 2 shown on the right printer roller 82, the axis runs parallel to the axis of the conveyor roller 80. About in the middle to the feed roller 80 and the pressure roller 82 is below a parallel deflection roller 84 is provided.
- the printing belt 72 is over the conveyor roller 80, the printing roller 82 and the guide roller 84 passed around.
- the cleaning facility 102 has a pretensioned band 72 adjacent wiper lip 104 and one arranged downstream Cleaning brush 106, used to remove water and paint residues serve on the printing side of the printing tape 72.
- the Radiation sources 78 of the heater with water selectively and partially heat moistened fabric tape 76, whereby the water stored in the fabric tape 76 evaporates and on the side facing the fabric tape 76 of the print ribbon 72. This way it gets on a partial surface of the printing tape 72, the printed image reproducing water film. That so humidified Printing tape 72 is fed to the dyeing station 86, in which the ink roller 88 ink onto the surface of the printing tape 72 applies. The areas that are not wetted with water colored while the water on the wetted with water Areas prevented from coloring these areas. To the inking of the printing tape 72 moves the inked Section of the printing tape 72 in the transfer printing point 94, in the due to the action of the counter-pressure roller 96 Print image is printed directly on the carrier material 100.
- FIG 3 shows a second embodiment of a vapor deposition device 120, which instead of the vaporization device 70 used in the printing device 74 shown in Figure 2 can be.
- the vaporization device 120 has one transversely to the direction of transport of the printing tape 72 via its heating strip 122 extending across the width.
- the heating strip 122 has a plurality in side by side in its longitudinal direction cylindrical depressions 124 arranged in a row, the a heating element 126 on each of their closed ends and the respective open end face of the pressure band 72 is facing.
- heating elements 126 By selectively activating the heating elements 126 becomes that located in the respective recess 124 Water heated so strongly that it evaporates and settles on the the heating strip 122 facing side of the printing tape 72 precipitates, so that a partial, reproducing the printed image Water film is formed. Then it will be like this wetted band 72, as already described above, in the same Way through the dyeing station 86 and the transfer printing station 94 promoted to print on the carrier material 100.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Printing Methods (AREA)
Description
Die Erfindung betrifft ein Druckverfahren zum Erzeugen eines Druckbildes auf einem Trägermaterial, bei dem ein Druckträger bereit gestellt wird, dessen Oberfläche entsprechend der Struktur des zu druckenden Druckbildes mit Wasserdampf beaufschlagt wird.The invention relates to a printing method for generating a Print image on a substrate in which a print carrier is provided, the surface of which according to the structure of the printed image to be printed is exposed to water vapor.
Bei bekannten Druckverfahren, wie dem Offset-Druckverfahren, sind auf der Oberfläche eines Druckträgers, beispielsweise einer Druckplatte, einem Druckband oder einer Druckvorlage, partiell druckende, dem zu druckenden Druckbild entsprechende Bereiche ausgebildet, die während des Druckvorganges mit Farbe eingefärbt werden und anschließend das Trägermaterial mit der Farbe bedrucken. Zur Ausbildung dieser partiell druckenden Bereiche sind verschiedene Verfahren bekannt. Beispielsweise das DIRECT-IMAGING-Verfahren von der Firma Heidelberger Druckmaschinen, bei dem auf einer silikonbeschichteten Folie durch partielles Wegbrennen der Silikonschicht eine Druckvorlage erstellt wird, deren silikonfreie Stellen die Farbe während des Druckvorganges aufnehmen und das Trägermaterial bedrucken. Bei einem anderen bekannten Verfahren werden auf dem Druckträger hydrophobe und hydrophile Bereiche entsprechend der Struktur des zu druckenden Druckbildes erzeugt. Vor dem Auftragen von Farbe auf dem Druckträger wird durch Verwendung von Auftragswalzen bzw. Sprühvorrichtungen zunächst ein dünner Feuchtigkeitsfilm auf den Druckträger aufgebracht, der die hydrophilen Bereiche des Druckträgers benetzt. Anschließend wird mit Hilfe einer Farbwalze Farbe auf die Oberfläche des Druckträgers aufgebracht, die jedoch ausschließlich die nicht mit einem Feuchtigkeitsfilm bedeckten Bereiche benutzt. Nach dem Einfärben des Druckträgers wird schließlich das eingefärbte Druckbild auf das Trägermaterial übertragen. In known printing processes, such as the offset printing process, are on the surface of a print medium, for example a printing plate, a printing tape or a printing template, partially printing, corresponding to the print image to be printed Areas formed during the printing process Color can be colored and then the carrier material print with the color. To train this partially Various methods are known in printing areas. For example, the DIRECT IMAGING process from the company Heidelberger Druckmaschinen, on which on a silicone-coated Film by partially burning away the silicone layer a print template is created, the silicone-free Adjust the color during the printing process and print on the carrier material. Another known one Processes become hydrophobic and hydrophilic on the print medium Areas according to the structure of the print Print image generated. Before applying paint on the Print carrier is created by using application rollers or Spray devices first a thin film of moisture applied the print carrier that the hydrophilic areas of the Print carrier wetted. Then using a Ink roller ink applied to the surface of the print carrier, but only those not with a moisture film covered areas. After coloring of the print carrier is finally the colored print image transferred to the carrier material.
Aus der US-A-3 072 049 sowie der US-A-2 002 815 sind Druckvorrichtungen bekannt, die jeweils nach einem Druckverfahren arbeiten, bei dem zum Erzeugen des dünnen Feuchtigkeitsfilms auf der Oberfläche des Druckträgers anstelle der Verwendung von Auftragswalzen oder Sprühvorrichtungen Wasserdampf auf die hydrophilen Bereiche des Druckträgers gebracht wird. Auch hier ist die Oberfläche des Druckträgers, die mit Wasserdampf beaufschlagt wird, entsprechend den Strukturen des zu druckenden Druckbildes in hydrophobe und hydrophile Bereiche untergliedert.US-A-3 072 049 and US-A-2 002 815 are printing devices known, each after a printing process work in creating the thin moisture film on the surface of the print medium instead of the Use of application rollers or spray devices Water vapor on the hydrophilic areas of the print medium brought. Again, the surface of the print carrier is which is exposed to water vapor, accordingly the structures of the printed image to be printed in divided into hydrophobic and hydrophilic areas.
Den zuvor beschriebenen Druckverfahren ist allen gemeinsam, daß ein Druckträger verwendet werden muß, auf dessen Oberfläche entsprechend den Strukturen des zu druckenden Druckbildes erhabene und ebene oder hydrophobe und hydrophile Bereiche ausgebildet sind.The printing process described above is common to all that a print medium must be used on its surface according to the structures of the printed image to be printed raised and level or hydrophobic and hydrophilic Areas are formed.
Es ist Aufgabe der Erfindung, ein flexibles Druckverfahren bereitzustellen, bei dem auf einfache Weise das zu druckende Druckbild verändert werden kann.It is an object of the invention to provide a flexible printing process To provide, in a simple way printing image can be changed.
Diese Aufgabe wird durch ein Druckverfahren mit den Merkmalen des Patentanspruchs 1 gelöst. Vorteilhafte Weiterbildungen ergeben sich aus den Unteransprüchen. This task is accomplished through a printing process with the characteristics of claim 1 solved. Advantageous further training result from the subclaims.
Durch die Erfindung wird ein Druckverfahren bereit gestellt, bei dem die Oberfläche des Druckträgers selektiv und partiell derart mit Wasserdampf beaufschlagt wird, daß sich auf der Oberfläche ein partieller, das Druckbild ergebender Wasserfilm ausbildet. Bei Einsatz dieses Druckverfahrens kann auf die Verwendung eines Druckträgers, auf dessen Oberfläche hydrophile und hydrophobe Bereiche ausgebildet sind, verzichtet werden, so daß zusätzliche Arbeitsschritte entfallen. Anstelle der chemisch vorbehandelten Druckträger verwendet das Druckverfahren mit selektiver Wasserbenutzung einen Druckträger mit gleichmäßiger Oberfläche, auf die der das Druckbild ergebende Wasserfilm aufgebracht wird. Dadurch ist es möglich, innerhalb eines Druckvorganges die Druckvorlage zu ändern, so daß das Druckverfahren mit sehr hoher Flexibilität arbeitet.The invention provides a printing method, at which the surface of the print carrier is selective and partial is so acted upon by steam that on the The surface is a partial water film that produces the printed image trains. When using this printing method can on the use of a Print carrier, on the surface of which hydrophilic and hydrophobic Areas are formed, so that additional Steps are eliminated. Instead of the chemically pretreated Print carrier uses the selective printing method Water use a pressure carrier with even Surface on which the water film resulting from the printed image is applied. This makes it possible within a Printing process to change the print template so that the printing process works with very high flexibility.
Bei einer weiteren Ausführungsform dieses Druckverfahrens wird ferner die Verwendung eines Zwischenträgers, beispielsweise eines Gummituches oder einer Walze mit gummierter Oberfläche, vorgeschlagen, der sich an die verschiedenen verwendeten Trägermaterialien anpaßt.In another embodiment of this printing process is also the use of an intermediate carrier, for example a blanket or a roller with rubberized Surface, proposed, which adapts to the different adapts used carrier materials.
Zum selektiven und partiellen Beaufschlagen der Oberfläche des Druckträgers mit Wasserdampf wird bei einer Weiterbildung des Verfahrens ein mit Wasser angefeuchtetes Gewebeband der Oberfläche des Druckträgers gegenüberliegend angeordnet, das mit Hilfe einer Strahlungsquelle, beispielsweise einem Laser mit Ablenkung- und Fokussierungsoptik, Hochtemperaturlampen oder Laserdioden-Arrays, und/oder einer Wärmequelle, wie Heizelementen, Thermokämmen oder Mikrowellenelementen, an Stellen entsprechend dem Druckbild selektiv erhitzt wird. Auf diese Weise wird an der der Oberfläche des Druckträgers zugewandten Seite des Gewebebandes an den entsprechend erhitzten Stellen Wasser als Dampf austreten, der an der Oberfläche des Druckträgers kondensiert. Um das Gewebeband mit Wasser zu befeuchten, wird es in einer kontinuierlichen Bewegung, beispielsweise durch ein Walzensystem und/oder einer. Sprühvorrichtung geführt. Selbstverständlich ist es auch denkbar, das Gewebeband durch ein Wasserbad hindurchzubewegen, wobei das Gewebeband aufgrund Kapillarwirkung Wasser aufnimmt. For selective and partial application to the surface of the pressure medium with water vapor is in a further training of the process a fabric tape moistened with water Surface of the print medium arranged opposite that with the help of a radiation source, for example a laser with deflection and focusing optics, high-temperature lamps or laser diode arrays, and / or a heat source, such as Heating elements, thermal combs or microwave elements Places is selectively heated according to the printed image. On this way is on the surface of the print medium facing side of the fabric tape on the correspondingly heated Make water leak as steam on the surface of the pressure medium condensed. To use the fabric tape To moisten water, it becomes continuous Movement, for example through a roller system and / or one. Spray device led. Of course it is also conceivable to move the fabric tape through a water bath, the fabric tape due to capillary action Absorbs water.
Bei einer weiteren Ausführungsform des Verfahrens wird anstelle eines angefeuchteten Gewebebandes gegenüber der Oberfläche des Druckträges eine Bedampfungseinrichtung mit einem Wasservorrat angeordnet. Die Bedampfungseinrichtung hat eine Vielzahl mit Wasser gefüllte Vertiefungen, in denen jeweils mindestens ein Heizelement vorgesehen ist, das unabhängig von den anderen Heizelementen betätigt werden kann. Durch Anlegen von Impulsen werden die Heizelemente selektiv aktiviert, so daß das in der Vertiefung befindliche Wasser verdampft wird und auf dem darüberliegenden Druckträger kondensiert. Durch Variation der Höhe der zugeführten Energie kann die Dampfmenge definiert geändert werden. Ferner besteht die Möglichkeit, den entstehenden Wasserfilm punktuell in seiner Stärke zu gestalten.In a further embodiment of the method, instead of of a dampened fabric tape opposite the surface of the pressure carrier a vaporization device with a Water supply arranged. The steaming device has one Variety of wells filled with water, in each at least one heating element is provided which is independent of the other heating elements can be operated. By applying the heating elements are selectively activated by pulses, so that the water in the well is evaporated and condensed on the overlying print carrier. By Varying the amount of energy supplied can change the amount of steam defined changes. There is also the possibility the resulting water film selectively in its strength to design.
Besonders vorteilhaft ist es, wenn die Oberfläche des Druckträgers rasterartig und zeilenweise mit Dampf beaufschlagt wird, wodurch ein kontinuierliches Abarbeiten der die Druckmaschine ansteuernden Druckdaten ermöglicht wird.It is particularly advantageous if the surface of the print carrier Steam applied in a grid pattern and line by line is, which means a continuous processing of the printing press driving print data is enabled.
Nachfolgend wird die Erfindung anhand der Zeichnungen näher erläutert. Darin zeigen:
- Fig. 1
- eine erste Ausführungsform einer Vorrichtung zum selektiven und partiellen Bedampfen der Oberfläche eines Druckträgers,
- Fig. 2
- eine Druckeinrichtung, bei der die Vorrichtung nach Figur 1 eingesetzt wird, und
- Fig. 3
- eine zweite Ausführungsform einer Vorrichtung, die zum selektiven und partiellen Bedampfen der Oberfläche des in Figur 2 gezeigten Druckträgers verwendbar ist.
- Fig. 1
- 1 a first embodiment of a device for the selective and partial vapor deposition of the surface of a printing medium,
- Fig. 2
- a printing device in which the device of Figure 1 is used, and
- Fig. 3
- a second embodiment of a device which can be used for selective and partial vapor deposition of the surface of the print carrier shown in FIG. 2.
Figur 1 beschreibt eine erste Ausführungsform einer Bedampfungseinrichtung
70 zum selektiven Bedampfen des Druckbandes
72 einer Druckeinrichtung 74 (vgl. Figur 2). Die Bedampfungseinrichtung 70
hat ein in Bewegungsrichtung des Druckbandes 72 angetriebenes,
parallel mit geringem Abstand zum Druckband 72 angeordnetes
Gewebeband 76, das durch ein Walzensystem (nicht dargestellt)
kontinuierlich mit Wasser befeuchtet wird. Auf der
dem Druckband 72 abgewandten Seite des Gewebebandes 76 ist
eine sich annähernd über die gesamte Breite des Druckbandes
72, quer zu dessen Bewegungsrichtung erstreckende Heizeinrichtung
(nicht dargestellt) vorgesehen. Diese Heizeinrichtung
hat eine Vielzahl, in dessen Längsrichtung nebeneinander
in einer Zeile angeordnete Strahlenquellen 78, die selektiv
und unabhängig voneinander aktiviert werden können.Figure 1 describes a first embodiment of a
Figur 2 zeigt eine schematische Darstellung der Druckeinrichtung
74, bei der die in Figur 1 beschriebene.erste Ausführungsform
der Bedampfungseinrichtung 70 eingesetzt wird. Die
Druckeinrichtung 74 hat eine angetriebene, sich im Uhrzeigersinn
drehende Förderwalze 80, die in Figur 2 links dargestellt
ist, sowie eine etwa auf gleicher Höhe angeordnete, in
Figur 2 rechts dargestellte Druckerwalze 82, deren Achse
parallel zur Achse der Förderwalze 80 verläuft. Etwa mittig
zu der Förderwalze 80 und der Druckwalze 82 ist unterhalb von
diesen eine parallel verlaufende Umlenkwalze 84 vorgesehen.
Das Druckband 72 ist über die Förderwalze 80, die Druckwalze
82 und die Umlenkwalze 84 herumgeführt. Figure 2 shows a schematic representation of the
Oberhalb der Förderwalze 80 und der Druckwalze 82 ist etwa
mittig zwischen diesen beiden die in Figur 1 beschriebene
Bedampfungseinrichtung 70 angeordnet. In Transportrichtung
des Druckbandes 72 gesehen nach der Bedampfungseinrichtung 70
ist im Bereich der Druckwalze 82 eine Färbestation 86 vorgesehen.
Diese Färbestation 86 hat eine am Druckband 72 anliegende
Farbwalze 88, die gegen die Druckwalze 82 vorgespannt
ist. Eine unter Vorspannung an der Farbwalze 88 anliegende
Versorgungswalze 90, die in einem mit Farbe gefüllten Farbbehälter
92 eintaucht, versorgt die Farbwalze 88 mit Farbe.
Unmittelbar nach der Färbestation 86 ist die Umdruckstelle 94
vorgesehen, an der-eine Gegendruckwalze 96 unter Vorspannung
am Druckband 72 anliegend gegen die Druckwalze 82 vorgespannt
ist. Die Gegendruckwalze 96 und das auf der Druckwalze 82
anliegende Druckband 72 bilden einen Transportspalt 98, durch
den das Trägermaterial 100 hindurchbewegt wird.Above the
In Transportrichtung des Druckbandes 72 gesehen nach der
Umdruckstelle 94 ist schließlich im Bereich der Umlenkwalze
84 eine Reinigungsvorrichtung 102 angeordnet. Die Reinigungseinrichtung
102 hat eine unter Vorspannung am Druckband 72
anliegende Abstreiflippe 104 und eine nachfolgend angeordnete
Reinigungsbürste 106, die zum Entfernen von Wasser und Farbresten
auf der Druckseite des Druckbandes 72 dienen.Seen in the transport direction of the
Sobald die Druckeinrichtung 74 aktiviert wird, beginnen die
Strahlungsquellen 78 der Heizeinrichtung das mit Wasser
angefeuchtete Gewebeband 76 selektiv und partiell zu erhitzen,
wodurch das im Gewebeband 76 gespeicherte Wasser verdampft
und sich auf der dem Gewebeband 76 zugewandten Seite
des Druckbandes 72 niederschlägt. Auf diese Weise wird auf
der Oberfläche des Druckbandes 72 ein partieller, das Druckbild
wiedergebender Wasserfilm ausgebildet. Das so befeuchtete
Druckband 72 wird der Färbestation 86 zugeführt, in der
die Farbwalze 88 Farbe auf die Oberfläche des Druckbandes 72
aufträgt. Dabei werden die nicht mit Wasser benetzten Bereiche
eingefärbt, während das Wasser auf den mit Wasser benetzten
Bereichen ein Einfärben dieser Bereiche verhindert. Nach
dem Einfärben des Druckbandes 72 bewegt sich der eingefärbte
Abschnitt des Druckbandes 72 in die Umdruckstelle 94, in der
durch die Wirkung der Gegendruckwalze 96 das eingefärbte
Druckbild direkt auf das Trägermaterial 100 gedruckt wird.As soon as the
Figur 3 zeigt eine zweite Ausführungsform einer Bedampfungseinrichtung
120, die anstelle der Bedampfungseinrichtung 70
bei der in Figur 2 dargestellten Druckeinrichtung 74 verwendet
werden kann. Die Bedampfungseinrichtung 120 hat eine sich
quer zur Transportrichtung des Druckbandes 72 über dessen
gesamte Breite erstreckende Heizleiste 122. Die Heizleiste
122 hat in ihrer Längsrichtung eine Vielzahl nebeneinander in
einer Zeile angeordnete zylinderförmige Vertiefungen 124, die
jeweils an ihrer geschlossenen Stirnseite ein Heizelement 126
haben und deren jeweilige offene Stirnfläche dem Druckband 72
zugewandt ist. Durch selektives Aktivieren der Heizelemente
126 wird das in der jeweiligen Vertiefung 124 befindliche
Wasser so stark erhitzt, daß es verdampft und sich auf der
der Heizleiste 122 zugewandten Seite des Druckbandes 72
niederschlägt, so daß ein partieller, das Druckbild wiedergebender
Wasserfilm ausgebildet wird. Anschließend wird das so
benetzte Band 72, wie oben bereits beschrieben, in gleicher
Weise durch die Färbestation 86 und die Umdruckstelle 94
gefördert, um das Trägermaterial 100 zu bedrucken.Figure 3 shows a second embodiment of a
Claims (13)
- Printing process for producing a printed image on a carrier material, in which a print carrier (72) is provided whose surface has water vapour applied to it at points corresponding to structures in the printing image to be printed, this water vapour being deposited at these points as a film of water, in which ink is applied to the surface, adheres to the unwetted points and is not picked up by the wetted points, and in which the ink is printed from there onto the carrier material (100).
- Printing process according to Claim 1, in which, after being applied to the surface, the ink is first transferred to an intermediate carrier and from there is printed onto the carrier material (100).
- Printing process according to Claim 1 or 2, in which a fabric belt (76) moistened with water is arranged opposite the surface of the print carrier (72), and in which the fabric belt (76) is selectively heated at points corresponding to the printing image with the aid of a radiation source (78) and/or a heat source.
- Printing process according to Claim 3, in which the fabric belt (76) is moistened with water by a roll system and/or a spraying device in a continuous movement.
- Printing process according to Claim 1, in which a damping device (120) with a water supply is arranged opposite the surface of the print carrier (72), and in which the damping device (120) has a large number of depressions (124) filled with water, in which at least one heating element (126) is provided in each case, the heating elements (126) being heated selectively in accordance with the printing image.
- Printing process according to one of Claims 1 to 5, in which the surface of the print carrier (72) has steam applied to it line by line in the manner of a grid.
- Apparatus for carrying out the printing process according to one of Claims 1 to 6, having a movable print carrier (72), whose surface can be wetted by a water film,a damping device (70, 120) which is arranged close to the surface of the print carrier and applies water vapour to the surface in accordance with structures of the printing image to be printed in such a way that a partial water film reproducing the printing image is formed on the surface, and havingan inking station (86) which is arranged close to the surface of the print carrier (72) and, as viewed in the direction of movement of the latter, downstream of the damping device (70, 120), for applying ink to the surface.
- Apparatus according to Claim 7, having an intermediate carrier which is arranged such that it follows the inking station (86), picks up the inked printing image and prints the carrier material (100).
- Apparatus according to Claim 7 or 8, having a cleaning apparatus (102), arranged upstream of the damping device (70, 120) as viewed in the direction of movement of the print carrier (72), for cleaning the surface of residues of water and ink.
- Apparatus according to Claim 7, 8 or 9, in which the print carrier is a fabric belt (72) led over at least two rolls (80, 82), it being possible for at least one of the rolls (80) to be driven.
- Apparatus according to Claim 7, 8 or 9, in which the print carrier is a printing roll which can be driven.
- Apparatus according to one of Claims 7 to 11, in which the damping device (70) is a moistened fabric belt (76) which is led past at a short distance from the surface of the print carrier and which can be heated partially and selectively by a radiation source (78) and/or heat source arranged close to the fabric belt.
- Apparatus according to one of Claims 7 to 11, in which the damping device (120) is a heating strip (122) extending transversely with respect to the direction of movement of the print carrier and having a large number of depressions (124) filled with water, a heating element (126) being provided in each depression (124).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19612761 | 1996-03-29 | ||
| DE19612761 | 1996-03-29 | ||
| PCT/DE1997/000508 WO1997036746A1 (en) | 1996-03-29 | 1997-03-13 | Process for printing a carrier material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0889782A1 EP0889782A1 (en) | 1999-01-13 |
| EP0889782B1 true EP0889782B1 (en) | 2000-04-26 |
Family
ID=7789995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP97918020A Expired - Lifetime EP0889782B1 (en) | 1996-03-29 | 1997-03-13 | Process for printing a carrier material |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6125755A (en) |
| EP (1) | EP0889782B1 (en) |
| JP (1) | JP2000507512A (en) |
| DE (1) | DE59701516D1 (en) |
| WO (1) | WO1997036746A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011075307A1 (en) | 2011-05-05 | 2012-11-08 | Voith Patent Gmbh | Method for moistening print carrier surface in offset printing machine, involves distributing vapor stream along preset direction such that vapor is fed uniformly to print carrier surface through openings in vapor deposition unit |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6295928B1 (en) * | 1997-01-27 | 2001-10-02 | OCé PRINTING SYSTEMS GMBH | Method and device for printing on a carrier material using a structured ice layer |
| DE19826377A1 (en) * | 1998-06-12 | 1999-12-16 | Heidelberger Druckmasch Ag | Printing press and printing process |
| DE10063987A1 (en) | 2000-12-21 | 2002-07-18 | Oce Printing Systems Gmbh | Device and method for cleaning a print carrier before each print cycle |
| DE10206937A1 (en) | 2002-02-19 | 2003-09-04 | Oce Printing Systems Gmbh | Method and device for printing, a wetting-promoting substance having a molecular layer thickness being applied before the application of a dampening solution |
| DE10206942A1 (en) | 2002-02-19 | 2003-09-04 | Oce Printing Systems Gmbh | Method and device for printing, using controlled radiation valves for structuring |
| DE10206946A1 (en) | 2002-02-19 | 2003-09-04 | Oce Printing Systems Gmbh | Method and device for printing, wherein the print carrier is hydrophilized by free ions |
| DE10206944A1 (en) | 2002-02-19 | 2003-09-04 | Oce Printing Systems Gmbh | Method and device for printing, the thickness of the dampening solution layer being measured and reduced |
| DE10206938A1 (en) * | 2002-02-19 | 2003-09-04 | Oce Printing Systems Gmbh | Method and device for printing, wherein a hydrophilic layer is produced and structured |
| JP2006310470A (en) * | 2005-04-27 | 2006-11-09 | Tokyo Institute Of Technology | Method and apparatus for forming liquid patterns |
| US9463643B2 (en) | 2006-02-21 | 2016-10-11 | R.R. Donnelley & Sons Company | Apparatus and methods for controlling application of a substance to a substrate |
| US8869698B2 (en) * | 2007-02-21 | 2014-10-28 | R.R. Donnelley & Sons Company | Method and apparatus for transferring a principal substance |
| ATE465885T1 (en) * | 2006-02-21 | 2010-05-15 | Moore Wallace North Am Inc | SYSTEMS AND METHODS FOR HIGH-SPEED VARIABLE PRINTING OPERATIONS |
| US8967044B2 (en) | 2006-02-21 | 2015-03-03 | R.R. Donnelley & Sons, Inc. | Apparatus for applying gating agents to a substrate and image generation kit |
| US8733248B2 (en) | 2006-02-21 | 2014-05-27 | R.R. Donnelley & Sons Company | Method and apparatus for transferring a principal substance and printing system |
| US9701120B2 (en) | 2007-08-20 | 2017-07-11 | R.R. Donnelley & Sons Company | Compositions compatible with jet printing and methods therefor |
| WO2009025822A1 (en) * | 2007-08-20 | 2009-02-26 | Rr Donnelley | Compositions compatible with jet printing and methods therefor |
| US20130033687A1 (en) * | 2011-08-05 | 2013-02-07 | Palo Alto Research Center Incorporated | Method for Direct Application of Dampening Fluid for a Variable Data Lithographic Apparatus |
| US9032874B2 (en) * | 2012-03-21 | 2015-05-19 | Xerox Corporation | Dampening fluid deposition by condensation in a digital lithographic system |
| US8950322B2 (en) * | 2012-03-21 | 2015-02-10 | Xerox Corporation | Evaporative systems and methods for dampening fluid control in a digital lithographic system |
| DE102012112494A1 (en) | 2012-12-18 | 2014-07-03 | Karlsruher Institut für Technologie | A method for transferring a transfer liquid from a master surface into a plurality of discrete compartments on a target surface and transfer surface for performing the method |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE286137C (en) * | ||||
| US2002815A (en) * | 1932-11-19 | 1935-05-28 | Harris Seybold Potter Co | Dampening mechanism for printing-presses |
| US2101202A (en) * | 1936-05-20 | 1937-12-07 | Miehle Printing Press & Mfg | Dampening mechanism for printing presses |
| CH286137A (en) * | 1949-04-09 | 1952-10-15 | Faber & Schleicher Aktiengesel | Device on printing machines for controllable moistening of rotating printing plates. |
| GB719239A (en) * | 1952-02-18 | 1954-12-01 | Harris Seybold Co | Improvements in or relating to a planographic printing press and a process of printing |
| US3072049A (en) * | 1960-09-08 | 1963-01-08 | William C Huebner | Printing plate treating apparatus |
| US3800699A (en) * | 1970-06-17 | 1974-04-02 | A Carley | Fountain solution image apparatus for electronic lithography |
| US4010686A (en) * | 1975-04-07 | 1977-03-08 | Timsons Limited | Means for applying liquid to a relatively moving surface |
| ZA776523B (en) * | 1977-04-16 | 1978-08-30 | Heidelberger Druckmasch Ag | Dampening unit for offset printing presses |
| DE2725093C3 (en) * | 1977-06-03 | 1984-04-05 | Rudolf Dr.-Ing. 2300 Kiel Hell | Printing process and arrangement for its implementation |
| DE3633758A1 (en) * | 1986-10-03 | 1988-04-07 | Man Technologie Gmbh | PRINTING MACHINE |
| US5129321A (en) * | 1991-07-08 | 1992-07-14 | Rockwell International Corporation | Direct-to-press imaging system for use in lithographic printing |
-
1997
- 1997-03-13 DE DE59701516T patent/DE59701516D1/en not_active Expired - Lifetime
- 1997-03-13 WO PCT/DE1997/000508 patent/WO1997036746A1/en active IP Right Grant
- 1997-03-13 EP EP97918020A patent/EP0889782B1/en not_active Expired - Lifetime
- 1997-03-13 JP JP9534790A patent/JP2000507512A/en active Pending
- 1997-03-13 US US09/142,881 patent/US6125755A/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011075307A1 (en) | 2011-05-05 | 2012-11-08 | Voith Patent Gmbh | Method for moistening print carrier surface in offset printing machine, involves distributing vapor stream along preset direction such that vapor is fed uniformly to print carrier surface through openings in vapor deposition unit |
Also Published As
| Publication number | Publication date |
|---|---|
| US6125755A (en) | 2000-10-03 |
| DE59701516D1 (en) | 2000-05-31 |
| EP0889782A1 (en) | 1999-01-13 |
| WO1997036746A1 (en) | 1997-10-09 |
| JP2000507512A (en) | 2000-06-20 |
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