EP0378826B1 - Device for drying inks on paper - Google Patents
Device for drying inks on paper Download PDFInfo
- Publication number
- EP0378826B1 EP0378826B1 EP89123367A EP89123367A EP0378826B1 EP 0378826 B1 EP0378826 B1 EP 0378826B1 EP 89123367 A EP89123367 A EP 89123367A EP 89123367 A EP89123367 A EP 89123367A EP 0378826 B1 EP0378826 B1 EP 0378826B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- paper
- radiation
- radiation source
- ink
- drying
- 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.)
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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
- B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
- B41F23/044—Drying sheets, e.g. between two printing stations
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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
- B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
- B41F23/0486—Particular types of dryers
Definitions
- the invention relates to a device for drying inks on paper, in particular for drying printed sheets in an offset printing machine, according to the preamble of the main claim.
- a device which is used for drying printed sheets in an offset printing machine.
- This device contains a UV dryer which is arranged in the vicinity of a printing cylinder, the UV rays striking the freshly printed sheets.
- the drying or curing of the colors due to UV radiation is brought about by the crosslinking of liquid binder components.
- a UV radiation source is known, which is partially provided with a cooling jacket.
- This cooling jacket should dissipate at least part of the heat loss.
- This device requires a large amount of space for the individual UV lamps, each surrounded by a cooling jacket.
- This cooling jacket creates a very large distance between the UV lamp and the inks to be dried.
- the radiation power of the UV emitters cannot be adapted to the actual need, or can be carried out only with very great effort.
- GB 15 81 998 describes a UV dryer device which contains a radiator, the expansion, gas pressure and other physical parameters of which are optimally matched to the material to be dried.
- EP 0 025 878 A1 lists a method in which the physical parameters, such as. B. the density in the print, the ink drying characteristics and ambient humidity can be used to control a heat dryer or a microwave dryer.
- the materials printed in screen printing are conveyed essentially in a straight line through drying units with IR emitter elements.
- the speed of the material to be dried is lower in the dryer than outside the dryer.
- one or more drying units can be switched on according to an actual print pattern.
- the corresponding drying units are switched on manually, for which purpose actuating elements are provided on the control panel.
- the invention is therefore based on the object of developing a device for drying ink on paper which, with little effort and space, enables optimal drying adapted to the printed product and its coating.
- the zone-by-zone arrangement of the individual UV excimer lamps makes it possible, depending on the amount of color in the individual color zones, to adapt the radiation energy to the corresponding amount of ink to be dried in a zone. It is particularly advantageous if the zones for the arrangement of the individual UV excimer lamps correspond to the zones in which the ink was applied to the paper. To control the radiation energy, the individual UV excimer lamps are switched individually and independently of one another with the aid of the control device.
- Another advantage of the solution according to the main claim is the fact that unnecessary heating is avoided by using individually controllable UV excimer emitters.
- this type of radiation source has a relatively high efficiency.
- the conversion of electrical discharge energy into UV radiation is very efficient.
- the radiation source can be arranged very close to the surface of the paper and can also be adapted to the course of the transport path of the paper. This means that, for example, the radiation source with the individual UV excimer lamps can assume a curved shape and can thus be arranged, for example, above a cylinder transporting a sheet in a sheet-fed printing machine.
- Another advantage of using such a device is that the radiation can be switched on and off with a high switching frequency depending on the coordinate. It is therefore only possible to generate radiation if the paper coated with paints or varnish is below the radiation source. By arranging the radiation source close to the paper surface and by regulating the radiation source depending on the need for ink drying and the choice of suitable radiation frequencies, the formation of ozone can be completely avoided. In addition, the radiation direction can be precisely defined by the design of the radiation source.
- UV inks used in offset printing harden when exposed to UV light. Compared to solvent-based inks, these inks have the advantage that drying can take place without unnecessarily heating the printed copy. It is therefore expedient to generate UV radiation of different wavelengths for different types of printing inks. This can be done by providing a plurality of radiation sources which generate UV radiation of different wavelengths.
- UV radiation of different wavelengths it is also possible to generate UV radiation of different wavelengths by exchanging the gas filling located in a radiation source.
- the entire device is connected to a control device for controlling the radiation energy to be supplied, the information about color-guiding or non-color-guiding Areas on the printed product can be fed via sensors.
- the sensors are aimed at the printed product in the same way as the radiation source and detect the ink application.
- the signals generated by the sensors are fed to the control device, the control device using these signals to switch the UV lamps.
- an electronic memory can also be provided, in which the structure of the printed product, i. H. the distribution of color and non-color areas is saved.
- the UV radiation can be controlled via a cyclical query of the memory content with the control circuit.
- FIG. 1 shows a sheetfed offset printing press 1 with a sheet feeder 2, four printing units 3, 4, 5, 6 and a sheet delivery 7.
- the entire operations on the printing press 1 are controlled with the aid of a control device 8.
- the printing press 1 is driven by an electric motor 9.
- transfer drums 10, 11, 12 which convey the sheets from one printing unit 4, 5, 6 to the next.
- the transfer drums 10, 11, 12 During the transport of a sheet 13 by means of the transfer drums 10, 11, 12, the printed side of the Sheet 13 to the outside, so that there is the possibility of passing the freshly applied paint past a drying device.
- a radiation source 14, 15, 16 is therefore arranged above each transfer drum 10, 11, 12.
- These radiation sources 14, 15, 16 are excimer emitters, as described, for example, in EPA Newsletter No. 32, March 88, pages 34-36.
- two further radiation sources 18, 19 are arranged in the region of a chain arm 17.
- the paint applied to the sheet 13 is dried on both sides.
- the ink or coating layer applied by the printing unit 6 is dried here.
- radiation sources 18, 19 only in the area of this chain arm 17 and to dispense with the radiation sources 14, 15, 16 in the printing units 4, 5, 6.
- the installation of these radiation sources 14, 15, 16 in the printing units 4, 5, 6 can be implemented without great effort.
- the radiation source 14 is shown in more detail.
- a sheet 13 is located on the transfer drum 10. This is held at its front end by means of a gripper 20 and transported to the next printing unit 4.
- the radiation source 14 is fastened, for example, to the side walls of the printing press 1 via this fastening part 22. All that is required to generate UV radiation is a high-frequency alternating current, which is applied to electrodes 24, 25 of radiation source 14 via lines 23. This high-frequency alternating current is generated by an HF generator 29 which is connected to the control device 8.
- a sensor 28 senses the presence of the arc 13 and switches the RF generator 29 on or off via the lines 23 in response to a signal on a line 30.
- a gas filling 26 is located in a closed space between the electrodes 24, 25. When an electrical voltage is applied, this gas filling 26 generates UV radiation, which emerges directly at the respective electrode 25 in the direction of the arrows 27 and onto the fresh ones on the surface of the sheet Inks.
- the radiation source 14 can be designed in any way so that an optimal adaptation of this radiation source 14 to the structure of the sheet surface to be irradiated is possible. This means that no additional reflectors or optical devices are required. The space between the radiation source 14 and the arc 13 can thus also be kept very small.
- the radiation source 14 consists, as shown in FIG. 2, of individual UV lamps, which are arranged to run both along the transfer drum axis and also transverse to the transfer drum axis. 2 shows the division of the radiation source 14 into individual UV lamps by the dashed lines. Such a subdivision opens up the possibility of controlling the individual UV emitters differently as required or also to provide them with different gas fillings 26 which generate different wavelengths.
Description
Die Erfindung betrifft eine Einrichtung zum Trocknen von Farben auf Papier, insbesondere zum Trocknen von bedruckten Bogen in einer Offsetdruckmaschine, gemäß dem Oberbegriff des Hauptanspruchs.The invention relates to a device for drying inks on paper, in particular for drying printed sheets in an offset printing machine, according to the preamble of the main claim.
Aus der DE 36 06 005 A1 ist eine Einrichtung bekannt, die zum Trocknen von bedruckten Bogen in einer Offsetdruckmaschine angewendet wird. Diese Einrichtung enthalt einen UV-Trockner, der in der Nähe eines Druckzylinders angeordnet ist, wobei die UV-Strahlen auf die frisch bedruckten Bogen auftreffen. Das Trocknen oder Aushärten der Farben aufgrund der UV-Bestrahlung wird durch die Vernetzung flüssiger Bindemittelbestandteile bewirkt.From DE 36 06 005 A1 a device is known which is used for drying printed sheets in an offset printing machine. This device contains a UV dryer which is arranged in the vicinity of a printing cylinder, the UV rays striking the freshly printed sheets. The drying or curing of the colors due to UV radiation is brought about by the crosslinking of liquid binder components.
Bei dieser bekannten Einrichtung wird eine erhebliche Verlustwärme erzeugt wird. Dies führt zu einer unerwünschten örtlichen Erwärmung auch von Druckmaschinenteilen. Solche örtlichen Erwärmungen in der Druckmaschine beeinträchtigen einerseits die Funktionsfähigkeit der paßgenauen Lagerstellen, andererseits besteht die Gefahr, daß durch Wärmedehnung bestimmter mechanischer Teile, Passerfehler im Druckbild entstehen.In this known device, a considerable heat loss is generated. This leads to undesirable local heating of printing press parts. Such local heating in the printing press on the one hand impair the functionality of the precisely fitting bearings, on the other hand there is a risk that thermal expansion of certain mechanical parts will cause registration errors in the printed image.
Aus der DE 23 23 792 A1 ist eine UV-Strahlungsquelle bekannt, die teilweise mit einem Kühlmantel versehen ist. Dieser Kühlmantel soll zumindest einen Teil der Verlustwärme abführen. Diese Einrichtung weist einen hohen Platzbedarf der einzelnen mit jeweils einem Kühlmantel umgebenen UV-Strahler auf. Durch diesen Kühlmantel entsteht ein sehr großer Abstand zwischen dem UV-Strahler und den zu trocknenden Farben.From DE 23 23 792 A1 a UV radiation source is known, which is partially provided with a cooling jacket. This cooling jacket should dissipate at least part of the heat loss. This device requires a large amount of space for the individual UV lamps, each surrounded by a cooling jacket. This cooling jacket creates a very large distance between the UV lamp and the inks to be dried.
Dieser Abstand führt zu einer verstärkten Ozonbildung, wobei das Ozon wegen seiner schädlichen Auswirkungen abgesaugt werden muß.This distance leads to increased ozone formation, the ozone having to be extracted because of its harmful effects.
Desweiteren kann bei dieser Einrichtung eine Anpassung der Strahlungsleistung der UV-Strahler an den tatsächlichen Bedarf nicht oder nur mit sehr hohem Aufwand durchgeführt werden.Furthermore, in this device, the radiation power of the UV emitters cannot be adapted to the actual need, or can be carried out only with very great effort.
In GB 15 81 998 ist eine UV-Trocknereinrichtung beschrieben, die einen Strahler enthält, dessen Ausdehnung, Gasdruck und andere physikalische Parameter einmalig optimal auf das zu trocknende Material abgestimmt sind.GB 15 81 998 describes a UV dryer device which contains a radiator, the expansion, gas pressure and other physical parameters of which are optimally matched to the material to be dried.
Ein geeigneter Strahler wird in EP 0 254 111 A1 offenbart.A suitable radiator is disclosed in EP 0 254 111 A1.
In EP 0 025 878 A1 ist ein Verfahren aufgeführt, bei dem die physikalischen Parameter, wie z. B. die Densität im Druck, die Farbtrocknungscharakteristik und Umgebungsfeuchtigkeit, dazu verwendet werden, einen Wärmetrockner oder einen Mikrowellentrockner anzusteuern.EP 0 025 878 A1 lists a method in which the physical parameters, such as. B. the density in the print, the ink drying characteristics and ambient humidity can be used to control a heat dryer or a microwave dryer.
Bei der in EP 0 089 327 B1 beschriebenen Trocknereinrichtung werden die in Siebdruck bedruckten Materialien im wesentlichen geradlinig durch Trocknungseinheiten mit IR-Strahlerelementen gefördert. Die Geschwindigkeit des zu trocknenden Materials ist im Trockner geringer als außerhalb des Trockners. Mit Hilfe einer Schalttafel können eine oder mehrere Trocknungseinheiten entsprechend einem tatsächlichen Druckmuster eingeschaltet werden. Die Einschaltung der entsprechenden Trocknungseinheiten ist von Hand vorgesehen, wozu an der Schalttafel Betätigungselemente vorgesehen sind.In the dryer device described in EP 0 089 327 B1, the materials printed in screen printing are conveyed essentially in a straight line through drying units with IR emitter elements. The speed of the material to be dried is lower in the dryer than outside the dryer. With the help of a control panel, one or more drying units can be switched on according to an actual print pattern. The corresponding drying units are switched on manually, for which purpose actuating elements are provided on the control panel.
Der Erfindung liegt deshalb die Aufgabe zugrunde, eine Einrichtung zum Trocknen von Farbe auf Papier zu entwickeln, die mit geringem Aufwand und Platzbedarf eine optimale auf das Druckprodukt und dessen Beschichtung angepasste Trocknung ermöglicht.The invention is therefore based on the object of developing a device for drying ink on paper which, with little effort and space, enables optimal drying adapted to the printed product and its coating.
Diese Aufgabe wird ausgehend von den gattungsgemäßen Merkmalen des Hauptanspruchs durch dessen Kennzeichen gelöst.This object is achieved on the basis of the generic features of the main claim by its characteristics.
Durch die zonenweise Anordnung der einzelnen UV-Excimerstrahler ist es möglich, je nach Menge der Farbe in den einzelnen Farbzonen die Strahlungsenergie der entsprechenden in einer Zone zu trocknenden Farbmenge anzupassen. Besonders vorteilhaft ist es, wenn die Zonen für die Anordnung der einzelnen UV-Excimerstrahler den Zonen entsprechen, in denen der Farbauftrag auf das Papier erfolgte. Die einzelnen UV-Excimerstrahler werden zur Steuerung der Strahlungsenergie einzeln und unabhängig voneinander mit Hilfe der Steuereinrichtung geschaltet.The zone-by-zone arrangement of the individual UV excimer lamps makes it possible, depending on the amount of color in the individual color zones, to adapt the radiation energy to the corresponding amount of ink to be dried in a zone. It is particularly advantageous if the zones for the arrangement of the individual UV excimer lamps correspond to the zones in which the ink was applied to the paper. To control the radiation energy, the individual UV excimer lamps are switched individually and independently of one another with the aid of the control device.
Ein weiterer Vorteil der Lösung gemäß dem Hauptanspruch ist darin zu sehen, daß eine unnötige Erwärmung durch die Anwendung einzeln ansteuerbarer UV-Excimerstrahler vermieden wird. Durch die Anwendung von UV-Excimerstrahlern haben diese Art der Strahlungsquellen einen relativ hohen Wirkungsgrad. Die Umsetzung von elektrischer Entladungsenergie in UV-Strahlung erfolgt sehr effizient. Damit entsteht ein weiterer Vorteil, die Strahlungsquelle kann sehr nahe an der Oberfläche des Papiers angeordnet werden und auch an den Verlauf des Transportweges des Papiers angepaßt werden. Dies bedeutet, daß beispielsweise die Strahlungsquelle mit den einzelnen UV-Excimerstrahlern eine gekrümmte Form einnehmen kann und damit beispielsweise oberhalb eines einen Bogen transportierenden Zylinders in einer Bogendruckmaschine angeordnet werden kann.Another advantage of the solution according to the main claim is the fact that unnecessary heating is avoided by using individually controllable UV excimer emitters. By using UV excimer lamps, this type of radiation source has a relatively high efficiency. The conversion of electrical discharge energy into UV radiation is very efficient. This creates a further advantage: the radiation source can be arranged very close to the surface of the paper and can also be adapted to the course of the transport path of the paper. This means that, for example, the radiation source with the individual UV excimer lamps can assume a curved shape and can thus be arranged, for example, above a cylinder transporting a sheet in a sheet-fed printing machine.
Ein weiterer Vorteil bei der Anwendung einer solchen Einrichtung besteht darin, daß die Strahlung mit einer hohen Schaltfrequenz koordinatenabhängig ein- und ausschaltbar ist. Somit besteht die Möglichkeit nur dann Strahlung zu erzeugen, wenn das mit Farben bzw. Lack beschichtete Papier sich unterhalb der Strahlungsquelle befindet. Durch die Anordnung der Strahlungsquelle nahe der Papieroberfläche und durch das Regeln der Strahlungsquelle in Abhängigkeit von dem Erfordernis der Farbtrocknung, sowie der Wahl geeigneter Strahlungsfrequenzen, kann die Ozonbildung vollständig vermieden werden. Außerdem kann durch die konstruktive Gestaltung der Strahlungsquelle die Strahlungsrichtung genau definiert werden.Another advantage of using such a device is that the radiation can be switched on and off with a high switching frequency depending on the coordinate. It is therefore only possible to generate radiation if the paper coated with paints or varnish is below the radiation source. By arranging the radiation source close to the paper surface and by regulating the radiation source depending on the need for ink drying and the choice of suitable radiation frequencies, the formation of ozone can be completely avoided. In addition, the radiation direction can be precisely defined by the design of the radiation source.
Die im Offsetdruck verwendeten UV-Farben härten bei Einwirkung von UV-Licht aus. Gegenüber lösungsmittelhaltigen Farben haben diese Farben den Vorteil, daß die Trocknung ohne eine unnötige Erwärmung des Druckexemplares erfolgen kann. Es ist deshalb zweckmäßig, bei unterschiedlichen Arten von Druckfarben UV-Strahlung unterschiedlicher Wellenlänge zu erzeugen. Dies kann dadurch erfolgen, daß mehrere Strahlungsquellen, welche UV-Strahlung unterschiedlicher Wellenlänge erzeugen, vorgesehen sind.The UV inks used in offset printing harden when exposed to UV light. Compared to solvent-based inks, these inks have the advantage that drying can take place without unnecessarily heating the printed copy. It is therefore expedient to generate UV radiation of different wavelengths for different types of printing inks. This can be done by providing a plurality of radiation sources which generate UV radiation of different wavelengths.
Es besteht aber auch die Möglichkeit, durch Austausch der in einer Strahlungsquelle befindlichen Gasfüllung UV-Strahlung unterschiedlicher Wellenlänge zu erzeugen.However, it is also possible to generate UV radiation of different wavelengths by exchanging the gas filling located in a radiation source.
Die gesamte Einrichtung ist mit einer Steuereinrichtung zur Steuerung der zuzuführenden Strahlungsenergie verbunden, der Informationen über farbführende bzw. nicht farbführende Flächen auf dem Druckprodukt über Sensoren zugeführt werden können. Die Sensoren sind beispielsweise in gleicher Weise wie die Strahlungsquelle auf das Druckprodukt gerichtet und erfassen den Farbauftrag. Die von den Sensoren erzeugten Signale werden der Steuereinrichtung zugeführt, wobei die Steuereinrichtung anhand dieser Signale die UV-Strahler schaltet.The entire device is connected to a control device for controlling the radiation energy to be supplied, the information about color-guiding or non-color-guiding Areas on the printed product can be fed via sensors. For example, the sensors are aimed at the printed product in the same way as the radiation source and detect the ink application. The signals generated by the sensors are fed to the control device, the control device using these signals to switch the UV lamps.
Anstelle einer solchen Sensoranordnung kann auch ein elektronischer Speicher vorgesehen sein, in welchem die Struktur des Druckprodukts, d. h. die Verteilung von farbführenden und nicht-farbführenden Flächen abgespeichert ist. Über eine zyklische Abfrage des Speicherinhaltes mit der Steuerschaltung kann die UV-Strahlung gesteuert werden.Instead of such a sensor arrangement, an electronic memory can also be provided, in which the structure of the printed product, i. H. the distribution of color and non-color areas is saved. The UV radiation can be controlled via a cyclical query of the memory content with the control circuit.
Die Erfindung wird nachfolgend anhand eines Ausführungsbeispiels näher erläutert.The invention is explained in more detail below using an exemplary embodiment.
Es zeigt:
- Fig.1
- eine Bogendruckmaschine mit einer Trocknungseinrichtung und
- Fig.2
- die Anordnung einer Strahlungsquelle oberhalb eines zu trocknenden Druckproduktes.
- Fig. 1
- a sheet-fed printing machine with a drying device and
- Fig. 2
- the arrangement of a radiation source above a print product to be dried.
Fig. 1 zeigt eine Bogenoffsetdruckmaschine 1 mit einem Bogenanleger 2, vier Druckwerken 3, 4, 5, 6 und einem Bogenausleger 7. Die gesamten Betriebsvorgänge an der Druckmaschine 1 werden mit Hilfe einer Steuereinrichtung 8 gesteuert. Der Antrieb der Druckmaschine 1 erfolgt über einen Elektromotor 9. Zwischen den einzelnen Druckwerken 3, 4, 5, 6 befinden sich jeweils Umführtrommeln 10, 11, 12 welche die Bögen von einem zum nächsten Druckwerk 4, 5, 6 befördern. Während des Transports eines Bogens 13 mittels der Umführtrommeln 10, 11, 12 zeigt die bedruckte Seite des Bogens 13 nach außen, so daß hier die Möglichkeit besteht, die frisch aufgebrachte Farbe an einer Trocknungseinrichtung vorbeizuführen. In der Figur 1 ist daher oberhalb jeder Umführtrommel 10, 11, 12 jeweils eine Strahlungsquelle 14, 15, 16 angeordnet. Diese Strahlungsquellen 14, 15, 16 sind Excimerstrahler, wie sie beispielsweise in der Literaturstelle EPA Newsletter Nr. 32, März 88, Seite 34-36 beschrieben sind.1 shows a sheetfed offset printing press 1 with a
Ferner sind im Bereich eines Kettenauslegers 17 zwei weitere Strahlungsquellen 18, 19 angeordnet. Hier erfolgt eine abschließende beidseitige Trocknung der auf dem Bogen 13 aufgebrachten Farbe. Außerdem erfolgt hier die Trocknung der von dem Druckwerk 6 aufgebrachten Farbe bzw. Lackschicht. Selbstverständlich besteht auch die Möglichkeit nur im Bereich dieses Kettenauslegers 17 Strahlungsquellen 18, 19 anzuordnen und auf die Strahlungsquellen 14, 15, 16 in den Druckwerken 4, 5, 6 zu verzichten. Da jedoch nur ein geringer Raumbedarf für die Strahlungsquellen 14, 15, 16 erforderlich ist, läßt sich der Einbau dieser Strahlungsquellen 14, 15, 16 in den Druckwerken 4, 5, 6 ohne großen Aufwand realisieren.Furthermore, two
In Fig. 2 ist die Strahlungsquelle 14 näher dargestellt. Auf der Umführtrommel 10 befindet sich ein Bogen 13. Dieser wird mittels Greifer 20 an seinem Vorderende festgehalten und zu dem nächsten Druckwerk 4 transportiert. Oberhalb der Umführtrommel 10 befindet sich die kreissegmentförmig ausgebildete Strahlungsquelle 14, die ein Befestigungsteil 22 aufweist. Über dieses Befestigungsteil 22 wird die Strahlungsquelle 14 beispielsweise an den Seitenwänden der Druckmaschine 1 befestigt. Zur Erzeugung von UV-Strahlung ist lediglich ein hochfrequenter Wechselstrom erforderlich, der über die Leitungen 23 an Elektroden 24, 25 der Strahlungsquelle 14 gelegt ist. Dieser hochfrequente Wechselstrom wird von einem HF-Generator 29 erzeugt, der mit der Steuereinrichtung 8 verbunden ist. Ein Sensor 28 sensiert das Vorhandensein des Bogens 13 und schaltet den HF-Generator 29 über die Leitungen 23 in Abhängigkeit eines Signals auf einer Leitung 30 ein bzw. aus. Zwischen den Elektroden 24, 25 befindet sich in einem abgeschlossenen Raum eine Gasfüllung 26. Bei Anlegen einer elektrischen Spannung erzeugt diese Gasfüllung 26 UV-Strahlung, die unmittelbar an der jeweiligen Elektrode 25 in Richtung der Pfeile 27 austritt und auf die auf der Bogenoberfläche befindlichen frischen Druckfarben einwirkt. Wie schon erwähnt, kann die Strahlungsquelle 14 beliebig gestaltet sein, so daß eine optimale Anpassung dieser Strahlungsquelle 14 an die Struktur der zu bestrahlenden Bogenoberfläche möglich ist. Damit sind keine zusätzlichen Reflektoren oder optische Einrichtungen erforderlich. Der Zwischenraum zwischen der Strahlungsquelle 14 und dem Bogen 13 kann damit auch sehr gering gehalten werden. Dieser Zwischenraum kann auch durch geeignete Abdichtungen, wie beispielsweise Gummilippen oder ähnliches, abgedichtet werden, zur Verhinderung von Ozonbildung besteht damit die Möglichkeit ein Gas, beispielsweise Stickstoff, in diesen Zwischenraum einströmen zu lassen. Die Strahlungsquelle 14 besteht, wie in Fig. 2 gezeigt aus einzelnen UV-Strahlern, die sowohl längs der Umführtrommelachse verlaufend als auch quer zur Umführtrommelachse verlaufen angeordnet sind. In der Fig. 2 ist die Aufteilung der Strahlungsquelle 14 in einzelne UV-Strahler durch die gestrichelten Linien dargestellt. Eine solche Unterteilung eröffnet die Möglichkeit, die einzelnen UV-Strahler unterschiedlich je nach Bedarf anzusteuern oder auch mit verschiedenen Gasfüllungen 26 zu versehen, die unterschiedliche Wellenlängen erzeugen.2, the
- 11
- DruckmaschinePrinting press
- 22nd
- BogenanlegerSheet feeder
- 33rd
- DruckwerkPrinting unit
- 44th
- DruckwerkPrinting unit
- 55
- DruckwerkPrinting unit
- 66
- DruckwerkPrinting unit
- 77
- BogenauslegerSheet boom
- 88th
- SteuereinrichtungControl device
- 99
- ElektromotorElectric motor
- 1010th
- UmführtrommelTransfer drum
- 1111
- UmführtrommelTransfer drum
- 1212th
- UmführtrommelTransfer drum
- 1313
- DruckbogenPrinted sheet
- 1414
- StrahlungsquelleRadiation source
- 1515
- StrahlungsquelleRadiation source
- 1616
- StrahlungsquelleRadiation source
- 1717th
- KettenauslegerChain boom
- 1818th
- StrahlungsquelleRadiation source
- 1919th
- StrahlungsquelleRadiation source
- 2020th
- GreiferGripper
- 2222
- BefestigungsteilFastener
- 2323
- Leitungencables
- 2424th
- Elektrodeelectrode
- 2525th
- Elektrodeelectrode
- 2626
- GasfüllungGas filling
- 2727
- PfeileArrows
- 2828
- Sensorsensor
- 2929
- HF-GeneratorRF generator
- 3030th
- Leitungmanagement
Claims (2)
- Device for drying inks on paper (13), in which the paper (13) which is coated with ink is guided past a radiation source (14, 15, 16, 18, 19) which emits essentially UV radiation onto the surface of the paper (13) and which is connected to a control device (8), characterized in that the radiation source (14, 15, 16, 18, 19) comprises a plurality of individually controllable UV excimer radiators which are arranged in zones transverse to the transport direction of the paper (13), each of which radiators is connected to the control device (8), and which are automatically switchable as a function of ink to be dried, the control device (8) being able to be fed signals which contain information about the ink distribution on the paper (13).
- Device according to Claim 1, characterized in that the zones, in which the UV radiators are arranged, correspond to the zones in which the ink application to the paper (13) was carried out.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3901165A DE3901165A1 (en) | 1989-01-17 | 1989-01-17 | DEVICE FOR DRYING COLORS ON PAPER |
| DE3901165 | 1989-01-17 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0378826A2 EP0378826A2 (en) | 1990-07-25 |
| EP0378826A3 EP0378826A3 (en) | 1991-04-17 |
| EP0378826B1 true EP0378826B1 (en) | 1996-04-10 |
Family
ID=6372200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP89123367A Expired - Lifetime EP0378826B1 (en) | 1989-01-17 | 1989-12-18 | Device for drying inks on paper |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0378826B1 (en) |
| JP (1) | JPH0686119B2 (en) |
| DE (2) | DE3901165A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100462229C (en) * | 2004-04-27 | 2009-02-18 | 海德堡印刷机械股份公司 | Arrangement for inputting radiation energy to printing material |
Families Citing this family (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4010191C2 (en) * | 1990-03-30 | 1994-10-13 | Heidelberger Druckmasch Ag | Emitter device for drying and / or curing ink and / or lacquer layers on print media |
| DE4342643C2 (en) * | 1993-09-13 | 1999-04-29 | Fraunhofer Ges Forschung | Low-temperature fixation with barrier discharge in inkjet printers |
| US5727472A (en) * | 1995-07-25 | 1998-03-17 | Burgio; Joseph Thomas | Apparatus and method for drying sheets printed on a multi-stand press |
| US5832833A (en) * | 1995-07-25 | 1998-11-10 | Burgio; Joseph Thomas | Apparatus and method for drying a substrate printed on a multi-stand offset press |
| DE19629370A1 (en) * | 1996-07-20 | 1998-01-22 | Heidelberger Druckmasch Ag | Rotary printing machine with a device for treating the surface of sheets |
| DE19704284A1 (en) * | 1997-02-05 | 1998-10-01 | Saechsisches Inst Fuer Die Dru | Print setting system |
| DE29710251U1 (en) * | 1997-06-12 | 1997-08-14 | Roland Man Druckmasch | Device for drying sheet-shaped substrates on a printing machine |
| DE10050517A1 (en) * | 2000-10-11 | 2002-05-02 | Roland Man Druckmasch | Device for acting on printing materials within a printing machine |
| DE10138863A1 (en) * | 2001-08-08 | 2003-02-27 | Koenig & Bauer Ag | Method for manufacturing a blister pack e.g. for small product items, uses low-wax or wax-free color system |
| DE10234076A1 (en) * | 2001-10-10 | 2003-04-24 | Heidelberger Druckmasch Ag | Device and method for supplying radiation energy to a printing material in a planographic printing press |
| DE10254955A1 (en) * | 2002-11-26 | 2004-06-03 | Man Roland Druckmaschinen Ag | Sheetfed |
| DE20218908U1 (en) | 2002-12-06 | 2003-02-13 | Roland Man Druckmasch | Excimer heater for the dryer of a printing press |
| JP2004203025A (en) * | 2002-12-12 | 2004-07-22 | Konica Minolta Holdings Inc | Image recording apparatus |
| JP4658723B2 (en) * | 2005-07-14 | 2011-03-23 | 株式会社小森コーポレーション | Printing machine or coating machine |
| JP2008142983A (en) * | 2006-12-08 | 2008-06-26 | Tohoku Ricoh Co Ltd | Stencil printing equipment and ultraviolet fixation device |
| EP1992486B1 (en) * | 2007-05-15 | 2012-10-03 | Komori Corporation | Liquid curing apparatus for liquid transfer device |
| DE102007052767A1 (en) | 2007-11-06 | 2009-05-07 | Manroland Ag | Color and lacquer processing method for sheet-fed printing machine, involves protecting components of machine from UV radiation of artificial or natural light, before application of UV-color and/or UV-lacquer on printing substrate |
| DE102007058957A1 (en) | 2007-12-07 | 2009-06-10 | Heidelberger Druckmaschinen Ag | Process for drying printed material |
| JP2009208463A (en) | 2008-02-06 | 2009-09-17 | Ryobi Ltd | Printing method of printing machine, and printing machine |
| JP2009184211A (en) * | 2008-02-06 | 2009-08-20 | Ryobi Ltd | Dryer for printing machine |
| JP2009184221A (en) * | 2008-02-06 | 2009-08-20 | Ryobi Ltd | Printing method of printing machine and printing machine |
| DE102008045433B4 (en) * | 2008-09-02 | 2020-06-25 | Koenig & Bauer Ag | Sheet guide cylinder in a sheet processing machine, in particular printing machine, with a dryer device assigned to the sheet guide cylinder |
| EP2258553A1 (en) * | 2009-06-05 | 2010-12-08 | WIFAG Maschinenfabrik AG | Device and method for drying paint on a printed substrate |
| CN102632700A (en) * | 2012-04-18 | 2012-08-15 | 广东新优威印刷装备科技有限公司 | Printer |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3840448A (en) * | 1972-06-26 | 1974-10-08 | Union Carbide Corp | Surface curing of acrylyl or methacrylyl compounds using radiation of 2,537 angstroms |
| GB1581998A (en) * | 1977-09-27 | 1980-12-31 | Applied Photophysics Ltd | Ultraviolet curing systems |
| CA1156739A (en) * | 1979-09-20 | 1983-11-08 | John W. Irwin | Method and apparatus for controlling drying and detaching of printed material |
| IT8021284V0 (en) * | 1980-03-25 | 1980-03-25 | Argon Service Ltd | INFRARED DRYING OVEN OF THE PERFECT TYPE. |
| SE455479B (en) * | 1982-03-17 | 1988-07-18 | Svecia Silkscreen Maskiner Ab | DRYING FOR A PRINT ON A MATERIAL |
| DD242028A1 (en) * | 1985-10-31 | 1987-01-14 | Polygraph Leipzig | DRYING DEVICE IN PRINTING MACHINES |
| CH670171A5 (en) * | 1986-07-22 | 1989-05-12 | Bbc Brown Boveri & Cie | |
| DE3828753C2 (en) * | 1988-08-25 | 1994-05-19 | Heidelberger Druckmasch Ag | Device for drying printed products in a printing press |
-
1989
- 1989-01-17 DE DE3901165A patent/DE3901165A1/en not_active Ceased
- 1989-12-18 DE DE58909650T patent/DE58909650D1/en not_active Expired - Fee Related
- 1989-12-18 EP EP89123367A patent/EP0378826B1/en not_active Expired - Lifetime
-
1990
- 1990-01-17 JP JP2006500A patent/JPH0686119B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100462229C (en) * | 2004-04-27 | 2009-02-18 | 海德堡印刷机械股份公司 | Arrangement for inputting radiation energy to printing material |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0378826A3 (en) | 1991-04-17 |
| DE3901165A1 (en) | 1990-08-02 |
| JPH02229045A (en) | 1990-09-11 |
| DE58909650D1 (en) | 1996-05-15 |
| EP0378826A2 (en) | 1990-07-25 |
| JPH0686119B2 (en) | 1994-11-02 |
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