EP0695636B1 - Method and device for inking a "non-aqueous" lithographic printing plate - Google Patents
Method and device for inking a "non-aqueous" lithographic printing plate Download PDFInfo
- Publication number
- EP0695636B1 EP0695636B1 EP95110528A EP95110528A EP0695636B1 EP 0695636 B1 EP0695636 B1 EP 0695636B1 EP 95110528 A EP95110528 A EP 95110528A EP 95110528 A EP95110528 A EP 95110528A EP 0695636 B1 EP0695636 B1 EP 0695636B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- release agent
- roller
- printing plate
- waterless
- planographic printing
- 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
- 238000007639 printing Methods 0.000 title claims description 67
- 238000000034 method Methods 0.000 title claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 69
- 238000000576 coating method Methods 0.000 claims description 13
- 238000007774 anilox coating Methods 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims description 10
- 229920001971 elastomer Polymers 0.000 claims description 7
- 238000007645 offset printing Methods 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 4
- 229920002379 silicone rubber Polymers 0.000 claims description 4
- 229920002545 silicone oil Polymers 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 2
- ZHPNWZCWUUJAJC-UHFFFAOYSA-N fluorosilicon Chemical compound [Si]F ZHPNWZCWUUJAJC-UHFFFAOYSA-N 0.000 claims 1
- 239000000976 ink Substances 0.000 description 34
- 238000009826 distribution Methods 0.000 description 7
- 239000005871 repellent Substances 0.000 description 4
- 238000004040 coloring Methods 0.000 description 3
- 229920005560 fluorosilicone rubber Polymers 0.000 description 3
- 239000004945 silicone rubber Substances 0.000 description 2
- 239000004959 Rilsan Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M1/00—Inking and printing with a printer's forme
- B41M1/06—Lithographic printing
- B41M1/08—Dry printing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F31/00—Inking arrangements or devices
Definitions
- the invention relates to a method and Device for coloring a "waterless" Planographic printing plate according to the preamble of the claim 1.
- the invention is based on the object Process for coloring a so-called “waterless” To create a planographic printing plate in which conventional d. H. not adapted to the "waterless” planographic printing Printing inks can be used.
- the advantages that can be achieved with the invention are, in particular, that conventional printing inks can be used and therefore ink transfer difficulties due to release agents in the ink feed roller train are avoided. It is particularly advantageous that an amount of release agent can be metered in and thus adapted to different operating states of a rotary offset printing press during production. With this release agent, the affinity of the ink-repellent, non-printing areas of the planographic printing plate for the printing ink is reduced. The constant supply of release agent in the finest dosage protects the color-repellent, non-printing areas of the planographic printing plate, which are slightly above the level of the printing areas, thus reducing wear. In addition, the used release agent is transported back and thus cleaned the planographic printing plate.
- an offset printing unit 2 is mounted in a known manner, consisting of a rubber cylinder 3, a second rubber cylinder 4, which acts as an impression cylinder and a plate cylinder 6.
- a paper web 7 is printed between the rubber cylinders 3, 4.
- On the plate cylinder 6 a known, prepared for "waterless" planographic printing plate 8 is attached.
- This planographic printing plate 8 has ink-accepting, printing areas 9 and ink-repellent, non-printing areas 11, which are slightly above the level of the printing areas 9.
- an inking unit 12 interacts with an ink-guiding roller train 13 and a release agent applicator 14 with a release agent-guiding roller train 16.
- a short inking unit 19 consisting of a soft application roller 21, an anilox roller 22 and a doctor blade device 23, preferably a chamber doctor blade, is used as the inking unit 12. Coatings 24, 26 of the soft application roller 21 and the anilox roller 22 are color-friendly.
- the release agent application unit 14 is designed as a short application unit 27 with a soft release agent application roller 28, an anilox roller 29 and a doctor blade device 31, preferably a chambered doctor blade, of the release agent source (FIG. 1).
- the release agent application roller 28 is provided with a soft, release agent-friendly coating 32, for example silicone rubber or fluorosilicone rubber.
- the anilox roller 29 is also equipped with a release agent-friendly coating 33, for example silicone rubber or fluorosilicone rubber and / or silicon oxide.
- Printing ink 17 or release agent 18, for example silicone oil is applied to the anilox rollers 22, 29 by means of the doctor devices 23, 31.
- the printing ink 17 or the release agent 18 is transferred directly from the anilox rollers 22, 29 to the planographic printing plate 8 via the application rollers 21, 28.
- the non-printing areas 11 of the planographic printing plate 8 are wetted with release agent 18 and the printing areas 9 of the planographic printing plate 8 with printing ink 17.
- conventional inking units 34 can also be used.
- a conventional inking unit 34 consists of two inking rollers 36, 37 abutting the plate cylinder 6, which are connected to an inking cylinder 38.
- An ink duct 44 feeds the film roller 43 to printing ink 17 located in an ink fountain 46. All rollers 36 to 44 are provided with color-friendly coatings (e.g. rubber, Rilsan).
- the release agent application unit 14 can be designed as a spray application unit 47 (FIG. 2).
- the release agent application roller 48 is connected to a release agent distribution cylinder 49. Release agent 18 is applied to this release agent distribution cylinder 49 by means of a spray mechanism 51, the release agent source, which is not described in detail.
- FIGS. 3 and 4 show FIGS. 3 and 4 in the form a brush applicator 52 and one Filmetzwerkes 53.
- the brush application unit 52 consists of a release agent application roller 54, a release agent distribution cylinder 56, one Release agent box roller 57 and a brush roller 58.
- the elements of the film applicator 53 are Release agent application roller 59, release agent distribution cylinder 61 and release agent ductor 62.
- FIG. 5 shows an example corresponding to FIG. 1 for an indirect supply of the release agent 18 to the "waterless" planographic printing plate 8.
- a release agent application roller 63 of a short application unit 64 lies against the soft ink application roller 21 of the short inking unit 12 and transfers release agent 18 to this ink application roller 21. From this ink application roller 21, which now carries ink and release agent, the printing ink 17 and the release agent 18 come together the "waterless" planographic printing plate 8 transferred.
- the planographic printing plate 8 is fed indirectly from the release agent application roller 63 release agent 18.
- the release agent application roller 63 is provided with a hard, release agent-friendly coating 66, for example silicon oxide, and is designed as an anilox roller which interacts with the doctor device 31.
- All coatings of the rollers described Application units 14 are release agent-friendly and can soft z.
- B. made of silicone or fluorosilicone rubber or hard z.
- the number of individual rolls of Release agent application units 14 can of course be variable be.
- the release agent application unit 14 can of course also be used be designed to be adjustable and therefore no Release agent 18 applied.
- the "waterless" Planographic printing plate 8 can now by means of the inking unit 12 printing ink, that of the "waterless” planographic printing plate 8 is adapted to be supplied.
Landscapes
- Printing Methods (AREA)
- Inking, Control Or Cleaning Of Printing Machines (AREA)
Description
Die Erfindung betrifft ein Verfahren und eine
Vorrichtung zum Einfärben einer "wasserlosen"
Flachdruckplatte gemäß dem Oberbegriff des Anspruches
1.The invention relates to a method and
Device for coloring a "waterless"
Planographic printing plate according to the preamble of the
Durch eine Druckschrift der Toray Industries, INC ist eine Druckplatte, die für ein "wasserloses" Flachdruckverfahren geeignet ist, bekannt.Through a publication by Toray Industries, INC is a pressure plate which is used for a "waterless" Flat printing process is known.
Nachteilig ist hierbei, daß die nichtdruckenden Stellen der "wasserlosen" Flachdruckplatte eine so große Affinität zu konventionellen Druckfarben haben, d. h. zu nicht an den "wasserlosen" Flachdruck angepaßte Druckfarben, so daß auch diese nichtdruckenden Stellen mit Druckfarbe eingefärbt werden. Deshalb sind zum Einfärben der "wasserlosen" Flachdruckplatte spezielle, der "wasserlosen" Flachdruckplatte angepaßte Druckfarben notwendig.The disadvantage here is that the non-printing points the "waterless" planographic printing plate is so big Have affinity for conventional inks, i.e. H. to not adapted to the "waterless" planographic printing Printing inks, so that these non-printing areas can be colored with printing ink. Therefore, for coloring the "waterless" Planographic printing plate special, the "waterless" Adapted printing inks necessary for planographic printing plate.
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren zum Einfarben einer sogenannten "wasserlosen" Flachdruckplatte zu schaffen, bei dem konventionelle, d. h. nicht auf den "wasserlosen" Flachdruck angepaßte Druckfarben verwendet werden können.The invention is based on the object Process for coloring a so-called "waterless" To create a planographic printing plate in which conventional d. H. not adapted to the "waterless" planographic printing Printing inks can be used.
Diese Aufgabe wird durch die Merkmale des
kennzeichnenden Teiles des Patentanspruches 1 gelöst.This task is characterized by the characteristics of the
characterizing part of
Die mit der Erfindung erzielbaren Vorteile
bestehen insbesondere darin, daß konventionelle
Druckfarben verwendet werden können und deswegen
Farbübertragungsschwierigkeiten infolge Trennmittel im
farbzuführenden Walzenstrang vermieden werden.
Besonders vorteilhaft ist, daß eine Trennmittelmenge
dosiert und so während der Produktion unterschiedlichen
Betriebszuständen einer Rotationsoffsetdruckmaschine
angepaßt werden kann.
Mit diesem Trennmittel wird die Affinität der
farbabweisenden, nichtdruckenden Bereichen der
Flachdruckplatte zur Druckfarbe herabgesetzt. Durch
die ständige Zufuhr von Trennmittel in feinster
Dosierung werden die farbabweisenden, nichtdruckenden
Bereiche der Flachdruckplatte, die leicht über dem
Niveau der druckenden Bereiche liegen, geschützt und
somit der Verschleiß verringert. Außerdem erfolgt ein
Rücktransport des gebrauchten Trennmittels und damit
eine Reinigung der Flachdruckplatte.The advantages that can be achieved with the invention are, in particular, that conventional printing inks can be used and therefore ink transfer difficulties due to release agents in the ink feed roller train are avoided. It is particularly advantageous that an amount of release agent can be metered in and thus adapted to different operating states of a rotary offset printing press during production.
With this release agent, the affinity of the ink-repellent, non-printing areas of the planographic printing plate for the printing ink is reduced. The constant supply of release agent in the finest dosage protects the color-repellent, non-printing areas of the planographic printing plate, which are slightly above the level of the printing areas, thus reducing wear. In addition, the used release agent is transported back and thus cleaned the planographic printing plate.
Ebenso ist es aber auch möglich spezielle dem "wasserlosen" Flachdruck angepaßte Druckfarben zu verwenden. However, it is also possible to use the special printing inks adapted to "waterless" planographic printing use.
Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und werden im folgenden näher beschrieben.Embodiments of the invention are in the drawing are shown and are described in more detail below.
Es zeigen
- Fig. 1
- eine schematische Darstellung einer erfindungsgemäßen Vorrichtung mit Kurzfarbwerk und Kurzauftragswerk;
- Fig. 2
- eine schematische Darstellung einer zweiten Ausführung der erfindungsgemäßen Vorrichtung mit konventionellem Farbwerk und Sprühauftragswerk;
- Fig. 3
- eine schematische Darstellung einer dritten Ausführung der erfindungsgemäßen Vorrichtung mit Kurzfarbwerk und Bürstenauftragswerk;
- Fig. 4
- eine schematische Darstellung einer vierten Ausführung der erfindungsgemäßen Vorrichtung mit Kurzfarbwerk und Filmfeuchtwerk;
- Fig. 5
- eine schematische Darstellung einer Ausführung der erfindungsgemäßen Vorrichtung zu einer indirekten Zufuhr von Trennmittel an eine "wasserlose" Flachdruckplatte.
- Fig. 1
- a schematic representation of a device according to the invention with short inking unit and short application unit;
- Fig. 2
- a schematic representation of a second embodiment of the device according to the invention with a conventional inking unit and spray application unit;
- Fig. 3
- a schematic representation of a third embodiment of the device according to the invention with short inking unit and brush application unit;
- Fig. 4
- a schematic representation of a fourth embodiment of the device according to the invention with short inking unit and film dampening unit;
- Fig. 5
- is a schematic representation of an embodiment of the device according to the invention for an indirect supply of release agent to a "waterless" planographic printing plate.
In Seitengestellen 1 einer Rotationsoffsetdruckmaschine
ist in bekannter Weise ein Offsetdruckwerk 2
bestehend aus einem Gummizylinder 3, einem zweiten
Gummizylinder 4, der als Gegendruckzylinder wirkt
und einem Plattenzylinder 6 gelagert. Zwischen den
Gummizylindern 3, 4 wird eine Papierbahn 7 bedruckt. Auf
dem Plattenzylinder 6 ist eine an sich bekannte, für
"wasserlosen" Flachdruck präparierte Flachdruckplatte
8 befestigt. Diese Flachdruckplatte 8 weist
farbannehmende, druckende Bereiche 9 und farbabweisende,
nichtdruckende Bereiche 11, die leicht über dem Niveau
der druckenden Bereiche 9 liegen auf.
Mit dieser Flachdruckplatte 8 wirkt ein Farbwerk
12 mit einem farbführenden Walzenstrang 13
und ein Trennmittel-Auftragswerk 14 mit einem
trennmittelführenden Walzenstrang 16 zusammen.
Konventionelle Druckfarbe 17, d. h. nicht an den
"wasserlosen" Flachdruck angepaßte Druckfarbe 17,
wird von dem farbführenden Walzenstrang 13 auf die
Flachdruckplatte 8 aufgebracht und mittels des zweiten
Walzenstranges 16 wird der Flachdruckplatte 8 direkt
oder indirekt Trennmittel 18, beispielsweise Silikonöl,
zugeführt.In
With this planographic printing plate 8, an
Im vorliegenden Beispiel ist als Farbwerk 12
ein Kurzfarbwerk 19 bestehend aus einer weichen
Auftragswalze 21, einer Rasterwalze 22 und einer
Rakeleinrichtung 23, vorzugsweise Kammerrakel,
verwendet. Beschichtungen 24, 26 der weichen
Auftragswalze 21 und der Rasterwalze 22 sind
farbfreundlich.
Das Trennmittel-Auftragswerk 14 ist im ersten
Ausführungsbeispiel als Kurzauftragswerk 27 mit einer
weichen Trennmittel-Auftragswalze 28, einer Rasterwalze
29 und einer Rakeleinrichtung 31, vorzugsweise
Kammerrakel, der Trennmittelquelle, ausgeführt
(Fig. 1).
Die Trennmittel-Auftragswalze 28 ist mit einer
weichen, trennmittelfreundlichen Beschichtung 32,
beispielsweise Silikongummi oder Fluorsilikongummi,
versehen. Die Rasterwalze 29 ist ebenfalls mit einer
trennmittelfreundlichen Beschichtung 33, beispielsweise
Silikongummi bzw. Fluorsilikongummi und/oder
Siliziumoxid, ausgestattet.
Auf die Rasterwalzen 22 , 29 wird Druckfarbe 17
bzw. Trennmittel 18, beispielsweise Silikonöl, mittels
der Rakeleinrichtungen 23, 31 aufgetragen. Von den
Rasterwalzen 22, 29 wird die Druckfarbe 17 bzw. das
Trennmittel 18 direkt über die Auftragswalzen 21, 28
an die Flachdruckplatte 8 übertragen. Hierbei werden
die nichtdruckenden Bereiche 11 der Flachdruckplatte 8
mit Trennmittel 18 und die druckenden Bereiche 9 der
Flachdruckplatte 8 mit Druckfarbe 17 benetzt.In the present example, a
In the first exemplary embodiment, the release
The release
Anstelle des in Fig. 1 dargestellten Kurzfarbwerkes
19 können auch konventionelle Farbwerke 34 (Fig. 2)
verwendet werden.
Beispielsweise besteht ein konventionelles Farbwerk
34 aus zwei am Plattenzylinder 6 anliegenden
Farbauftragswalzen 36, 37, die mit einem
Farbreibzylinder 38 in Verbindung stehen. Diesen
Farbreibzylinder 38 und einen weiteren Farbreibzylinder
41, sowie eine Filmwalze 43 verbindet jeweils eine
Farbübertragungswalze 39, 42. Ein Farbduktor 44
führt der Filmwalze 43 sich in einem Farbkasten 46
befindlichen Druckfarbe 17 zu.
Alle Walzen 36 bis 44 sind mit farbfreundlichen
Beschichtungen (z. B. Gummi, Rilsan) versehen.Instead of the
For example, a
All
In einer weiteren Ausführungsvariante kann das
Trennmittel-Auftragswerk 14 als Sprühauftragswerk 47
ausgebildet sein (Fig. 2).
Die Trennmittel-Auftragswalze 48 steht mit einem
Trennmittel-Reibzylinder 49 in Verbindung. Auf
diesen Trennmittel-Reibzylinder 49 wird mittels
eines nicht näher beschriebenen Sprühwerkes 51, der
Trennmittelquelle, Trennmittel 18 aufgebracht.In a further embodiment variant, the release
The release
Weitere Varianten des Trennmittel-Auftragswerkes
14 zeigen Fig. 3 und Fig. 4 in Form
eines Bürstenauftragswerkes 52 und eines
Filmauftragswerkes 53. Das Bürstenauftragswerk
52 besteht aus einer Trennmittel-Auftragswalze
54, einem Trennmittel-Reibzylinder 56, einer
Trennmittel-Kastenwalze 57 sowie einer Bürstenwalze 58.
Die Elemente des Filmauftragswerkes 53 sind
Trennmittel-Auftragswalze 59, Trennmittel-Reibzylinder
61 und Trennmittel-Duktor 62.Other variants of the release
Fig. 5 zeigt ein Beispiel entsprechend Fig. 1 für eine
indirekte Zufuhr des Trennmittels 18 an die "wasserlose"
Flachdruckplatte 8.
Eine Trennmittel-Auftragswalze 63 eines
Kurzauftragwerkes 64 liegt an der weichen
Farbauftragswalze 21 des Kurzfarbwerkes 12 an und
übergibt Trennmittel 18 an diese Farbauftragwalze
21. Von dieser Farbauftragwalze 21, die nun farb- und
trennmittelführend ist, wird die Druckfarbe 17
und das Trennmittel 18 gemeinsam an die "wasserlose"
Flachdruckplatte 8 übertragen. Der Flachdruckplatte
8 wird indirekt von der Trennmittel-Auftragswalze
63 Trennmittel 18 zugeführt. In diesem Fall ist
die Trennmittel-Auftragswalze 63 mit einer harten,
trennmittelfreundlichen Beschichtung 66, beispielsweise
Siliziumoxid, versehen und ist als Rasterwalze
ausgeführt, die mit der Rakeleinrichtung 31
zusammenwirkt.FIG. 5 shows an example corresponding to FIG. 1 for an indirect supply of the
A release
Alle Beschichtungen der Walzen der beschriebenen
Auftragswerke 14 sind trennmittelfreundlich und können
weich z. B. aus Silikon- oder Fluorsilikongummi oder
hart z. B. aus Siliziumoxid ausgebildet sein.All coatings of the rollers described
Die Anzahl der einzelnen Walzen der
Trennmittel-Auftragswerke 14 kann natürlich variabel
sein.The number of individual rolls of
Release
Ebenso kann das Trennmittel-Auftragswerk 14 natürlich
abstellbar ausgeführt sein und somit wird kein
Trennmittel 18 aufgetragen. Der "wasserlosen"
Flachdruckplatte 8 kann nun mittels der Farbwerkes
12 Druckfarbe, die der "wasserlose" Flachdruckplatte 8
angepaßt ist, zugeführt werden. The release
- 11
- SeitengestellSide frame
- 22nd
- OffsetdruckwerkOffset printing unit
- 33rd
- Gummizylinder (2)Rubber cylinder (2)
- 44th
- Gummizylinder (2)Rubber cylinder (2)
- 55
- --
- 66
- Plattenzylinder (2)Plate cylinder (2)
- 77
- PapierbahnPaper web
- 88th
- Flachdruckplatte, wasserlos (6)Planographic printing plate, waterless (6)
- 99
- Bereich, farbannehmend, druckend (8)Area, ink accepting, printing (8)
- 1010th
- --
- 1111
- Bereich, farbabweisend, nichtdruckend (8)Area, color-repellent, non-printing (8)
- 1212th
- FarbwerkInking unit
- 1313
- Walzenstrang, farbführendRoll train, ink-guiding
- 1414
- Trennmittel-AuftragswerkeRelease agent application plants
- 1515
- --
- 1616
- Walzenstrang, trennmittelführendRoll strand, releasing agent
- 1717th
- DruckfarbePrinting ink
- 1818th
- TrennmittelRelease agent
- 1919th
- KurzfarbwerkShort inking unit
- 2020th
- --
- 2121
- Auftragswalze, farbführendApplicator roller, color leading
- 2222
- Rasterwalze, farbführendAnilox roller, ink leading
- 2323
- RakeleinrichtungDoctor device
- 2424th
- Beschichtung (21)Coating (21)
- 2525th
- --
- 2626
- Beschichtung (22)Coating (22)
- 2727
- Kurzauftragswerk Short order work
- 2828
- Trennmittel-AuftragswalzeRelease agent application roller
- 2929
- RasterwalzeAnilox roller
- 3030th
- --
- 3131
- RakeleinrichtungDoctor device
- 3232
- Beschichtung, trennmittelfreundlich (28)Coating, release agent friendly (28)
- 3333
- Beschichtung, trennmittelfreundlich (29)Coating, release agent friendly (29)
- 3434
- Farbwerk, konventionellInking unit, conventional
- 3535
- --
- 3636
- FarbauftragswalzeInking roller
- 3737
- FarbauftragswalzeInking roller
- 3838
- FarbreibzylinderInk rubbing cylinder
- 3939
- FarbübertragungswalzeInk transfer roller
- 4040
- --
- 4141
- FarbreibzylinderInk rubbing cylinder
- 4242
- FarbübertragungswalzeInk transfer roller
- 4343
- FilmwalzeFilm roller
- 4444
- FarbduktorColor ductor
- 4545
- --
- 4646
- FarbkastenPaint box
- 4747
- SprühauftragswerkSpray applicator
- 4848
- Trennmittel-AuftragswalzeRelease agent application roller
- 4949
- Trennmittel-ReibzylinderRelease agent distribution cylinder
- 5050
- --
- 5151
- SprühwerkSpraying device
- 5252
- BürstenauftragswerkBrush applicator
- 5353
- FilmauftragswerkFilm contract work
- 5454
- Trennmittel-AuftragswalzeRelease agent application roller
- 5555
- --
- 5656
- Trennmittel-Reibzylinder Release agent distribution cylinder
- 5757
- Trennmittel-KastenwalzeRelease agent box roller
- 5858
- BürstenwalzeBrush roller
- 5959
- Trennmittel-AuftragswalzeRelease agent application roller
- 6060
- --
- 6161
- Trennmittel-ReibzylinderRelease agent distribution cylinder
- 6262
- Trennmittel-DuktorRelease agent ductor
- 6363
- Trennmittel-AuftragswalzeRelease agent application roller
- 6464
- KurzauftragswerkShort order work
- 6565
- --
- 6666
- Beschichtung, trennmittelfreundlich (63)Coating, release agent-friendly (63)
Claims (7)
- Method of inking a "waterless" planographic printing plate (8), which is supplied with printing ink (17) by means of an inking unit (12), characterized in that, by means of a release agent application unit (14), a release agent (15) which wets waterless, non-printing areas (11) of the planographic printing plate (8) is supplied directly or indirectly to the "waterless" planographic printing plate (8).
- Method according to Claim 1, characterized in that the release agent (18) used is silicone oil.
- Device for inking a "waterless" planographic printing plate (8) of a rotary offset printing machine, which has an inking unit (12) assigned to the planographic printing plate (8), characterized in that a second roller train (16), an application unit (14) for a release agent which wets waterless, non-printing areas (11) of the planographic printing plate (8), this unit comprising at least one release agent applicator roller (28; 48; 54; 59; 63) and a release agent source (31; 51; 62), is arranged so as to contact the "waterless" planographic printing plate and/or a roller in the inking unit (12), the release-agent-conveying rollers having a coating (32; 33; 66) with an affinity for release agent.
- Device according to Claim 3, characterized in that the coating (32; 33; 66) with an affinity for release agent consists of silicon rubber, fluorosilicon rubber or silicon oxide.
- Device according to Claim 3, characterized in that the release agent application unit (14) comprises a short application unit (22), which has at least one applicator roller (28), an anilox roller (29) and a doctor device (31).
- Device according to Claim 3, characterized in that the release agent application unit (14) comprises a spray application unit (47), which has at least one release agent applicator roller (48), at least one release agent distributor cylinder (49) and a spraying unit (51).
- Device according to Claim 3, characterized in that the release agent application unit (14) comprises a brush application unit (52), which has at least one release agent applicator roller (54), at least one release agent distributor cylinder (56), a release agent fountain roller (57) and a brush roller (58).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4424891A DE4424891C2 (en) | 1994-07-14 | 1994-07-14 | Method and device for carrying out this method for inking a "waterless" planographic printing plate |
| DE4424891 | 1994-07-14 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0695636A2 EP0695636A2 (en) | 1996-02-07 |
| EP0695636A3 EP0695636A3 (en) | 1997-09-24 |
| EP0695636B1 true EP0695636B1 (en) | 1999-10-13 |
Family
ID=6523162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP95110528A Expired - Lifetime EP0695636B1 (en) | 1994-07-14 | 1995-07-06 | Method and device for inking a "non-aqueous" lithographic printing plate |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5676053A (en) |
| EP (1) | EP0695636B1 (en) |
| JP (1) | JP3090249B2 (en) |
| DE (1) | DE4424891C2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4438246C1 (en) * | 1994-10-26 | 1995-12-07 | Metronic Geraetebau | Printing device for printing on compact discs |
| DE19732497B4 (en) | 1997-07-29 | 2005-08-11 | Man Roland Druckmaschinen Ag | Short inking unit in a printing unit of a rotary printing machine |
| DE19933438B4 (en) * | 1999-07-16 | 2004-07-08 | Man Roland Druckmaschinen Ag | Printing machine with printing / coating units not involved in the printing / coating process |
| DE10039279A1 (en) * | 1999-09-09 | 2001-03-15 | Heidelberger Druckmasch Ag | Roller for printers has non-metal structured surface and forms a slip or siphon roller |
| US6881533B2 (en) * | 2003-02-18 | 2005-04-19 | Kodak Polychrome Graphics Llc | Flexographic printing plate with ink-repellent non-image areas |
| DE102008061735A1 (en) * | 2008-12-11 | 2010-06-17 | Weros Technology Gmbh | Printing method, in particular offset printing method, and release agent for this |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4724764B1 (en) * | 1983-05-11 | 1994-09-20 | Baldwin Technology Corp | Dampening system |
| JPH0789207A (en) * | 1993-09-24 | 1995-04-04 | Dainippon Ink & Chem Inc | Waterless rotary offset printing method |
-
1994
- 1994-07-14 DE DE4424891A patent/DE4424891C2/en not_active Expired - Fee Related
-
1995
- 1995-07-06 EP EP95110528A patent/EP0695636B1/en not_active Expired - Lifetime
- 1995-07-13 JP JP07177498A patent/JP3090249B2/en not_active Expired - Fee Related
- 1995-07-14 US US08/502,775 patent/US5676053A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DE4424891C2 (en) | 1997-04-17 |
| EP0695636A2 (en) | 1996-02-07 |
| JP3090249B2 (en) | 2000-09-18 |
| JPH08174986A (en) | 1996-07-09 |
| US5676053A (en) | 1997-10-14 |
| DE4424891A1 (en) | 1996-01-18 |
| EP0695636A3 (en) | 1997-09-24 |
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