EP1155871A2 - Verfahren zum Behandeln von erneut bebilderbaren Druckformen oder Druckformzylindern in Druckmaschinen - Google Patents
Verfahren zum Behandeln von erneut bebilderbaren Druckformen oder Druckformzylindern in Druckmaschinen Download PDFInfo
- Publication number
- EP1155871A2 EP1155871A2 EP01111023A EP01111023A EP1155871A2 EP 1155871 A2 EP1155871 A2 EP 1155871A2 EP 01111023 A EP01111023 A EP 01111023A EP 01111023 A EP01111023 A EP 01111023A EP 1155871 A2 EP1155871 A2 EP 1155871A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- printing
- layer
- image information
- treating
- imaging device
- 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.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
- B41N3/00—Preparing for use and conserving printing surfaces
- B41N3/006—Cleaning, washing, rinsing or reclaiming of printing formes other than intaglio formes
Definitions
- the invention relates to a method for treating reimageable printing forms or printing form cylinders in printing presses, wherein on the surface to be treated imageable layer applied and this layer with an imaging device an image information is applied to generate printing and non-printing locations.
- the device for printing plate imaging optionally contains an integrated curing device and a detachment device.
- the curing of the applied on the pressure plate Medium is done by UV curing or radiation curing.
- About the function of the The detachment device is not described in more detail.
- a method for the regeneration of a is preferred previously known directly illustrated printing form suitable for offset printing.
- the regeneration the printing plate includes the removal of the images on the printing form and a hydrophilization of the surface of the printing form.
- the Regeneration by applying an ionized process gas to the printing form by means of an application device is applied, with a reactive deletion of the images and the simultaneous hydrophilization is carried out in one process step.
- the one there Volatile reaction products are removed by means of a suction device.
- a disadvantage of this regeneration device is the high level of technical effort required for the Regeneration of the printing plates must be operated.
- the invention has the advantage that the method according to the invention provides additional Extinguishing devices are no longer required.
- the device works reliably and energy saving.
- the accompanying drawing shows a printing unit 1 of a multi-color sheet-fed offset printing press.
- Each printing unit 1 contains a printing cylinder as a sheet-guiding cylinder 2 and a transfer cylinder 3 and a printing form cylinder as the image transfer cylinder 4 and a rubber cylinder 5.
- An inking unit 6 and a dampening unit 7 are assigned to each printing form cylinder 4.
- On the Printing form cylinder 4 can also be a printing form (not shown here).
- the printing form cylinder 4 is also a chamber doctor blade / anilox roller combination executed coating device 8, an imaging device 9 and possibly a developer unit 10 assigned.
- the imaging device 9 for imaging the printing form cylinder 4 is designed as a laser-based ablation device.
- the applied layer 11 can now, depending on the printing process, ink-guiding or ink-repellent Have properties.
- layer 11 is color-friendly and that Surface of the printing form cylinder 4 is dampening agent friendly.
- the medium is dampening agent friendly and the printing form cylinder 4 is color friendly.
- the medium for layer 11 is usually self-curing. Is the hardening of the medium not possible automatically, curing with UV light can take place parallel to the coating (Polymerization) or via laser beam drying and baking. After a another variant, it is also possible to heat the medium onto the printing form cylinder 4 to apply and to achieve the solidification by cooling.
- the printing form cylinder 4 prepared after the application of the medium can now be imaged by the imaging device 9.
- data for the printing process are generally stored in a computer (not shown) known manner processed and the device for printing form cylinder imaging forwarded.
- the speed of rotation of the printing form cylinder 4 is controlled by the line Speed of the imaging device 9 synchronized.
- the surface of the layer is loaded with image information, so that printing and non-printing areas arise.
- the Layer 11 is color-friendly or dampening agent-friendly, leads to the ablation of layer 11 printing or non-printing points on the surface of the printing form cylinder 4.
- the imaging may be followed by a development process to open up the image information to fix the surface of the printing form cylinder 4 or the printing plate.
- the printing process is then carried out. This can be done in a conventional manner Ink and water or in dry offset printing are carried out using the Toray process.
- the imaging of the printing form cylinder 4 is removed. This happens also by means of a laser-based ablation device, preferably those for the Imaging device 9 used is used.
- An advantageous embodiment of the invention is the diameter of the laser beam to transmit the inverted image information. This can increase reliability the image separation can be enlarged.
- the The diameter of the laser beam is retained, but the dot matrix of the inverted image information is specifically overcrowded, i.e. the number of points is increased.
- the imaging, the hardening of the applied layer 11, the development and the image detachment should preferably be done with the printing plate cylinder 4 rotating. That is what Printing form cylinder 4 can be uncoupled from the drive and has for imaging and image detachment its own drive.
- the method described above is not limited to offset printing.
- the layer 11 is in the form of a sleeve or a polymer plate.
- the Image information is applied analogously to the imaging device 9 as described above.
- the detachment or deletion process is also carried out with the inverted image information carried out, which then equalizes the surface of the sleeve or the polymer plate becomes.
Landscapes
- Manufacture Or Reproduction Of Printing Formes (AREA)
- Printing Methods (AREA)
- Printing Plates And Materials Therefor (AREA)
- Thermal Transfer Or Thermal Recording In General (AREA)
- Paper (AREA)
Abstract
Description
- 1
- Druckwerk
- 2
- Druckzylinder
- 3
- Übergabezylinder
- 4
- Druckformzylinder
- 5
- Gummizylinder
- 6
- Farbwerk
- 7
- Feuchtwerk
- 8
- Beschichtungseinrichtung
- 9
- Bebilderungseinrichtung
- 10
- Entwickler-Einheit
- 11
- Schicht
Claims (7)
- Verfahren zum Behandeln von erneut bebilderbaren Druckformen oder Druckformzylindern in Druckmaschinen, wobei auf die zu behandelnde Oberfläche eine bebilderbare Schicht (11) aufgebracht wird und diese Schicht (11) durch eine Bebilderungseinrichtung (9) mit einer Bildinformation beaufschlagt wird, um druckende und nichtdruckende Stellen zu erzeugen,
dadurch gekennzeichnet, dass
zum Ablösen der Schicht (11) oder zum Egalisieren der Oberfläche diese durch eine Bebilderungseinrichtung (9) mit der invertierten Bildinformation beaufschlagt wird. - Verfahren zum Behandeln von erneut bebilderbaren Druckformen oder Druckzylindern nach Anspruch 1, dadurch gekennzeichnet, dass die Bebilderungseinrichtung (9) zum Bebildern der Schicht (11) mit der Bebilderungseinrichtung (9) zum Ablösen oder Egalisieren der Schicht (11) identisch ist.
- Verfahren zum Behandeln von erneut bebilderbaren Druckformen oder Druckzylindern nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, dass die Bebilderungseinrichtung (9) als Ablations-Einrichtung auf Laser-Basis ausgeführt ist.
- Verfahren zum Behandeln von erneut bebilderbaren Druckformen oder Druckzylindern nach Anspruch 1, dadurch gekennzeichnet, dass die Bildinformation zum Erzeugen von auf der Oberfläche der Druckform oder des Druckformzylinders (4) angeordneter druckender Stellen führt.
- Verfahren zum Behandeln von erneut bebilderbaren Druckformen oder Druckzylindern nach Anspruch 1, dadurch gekennzeichnet, dass die Bildinformation zum Erzeugen von auf der Oberfläche der Druckform oder des Druckzylinders (4) angeordneter nichtdruckender Stellen führt.
- Verfahren zum Behandeln von erneut bebilderbaren Druckformen oder Druckzylindern nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, dass bei der invertierten Bildinformation der Durchmessers des Laser-Strahles vergrößert wird.
- Verfahren zum Behandeln von erneut bebilderbaren Druckformen oder Druckzylindern den Ansprüchen 1 und 2, dadurch gekennzeichnet, dass die Punktmatrix der invertierten Bildinformation gezielt überfüllt wird.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10024184A DE10024184A1 (de) | 2000-05-15 | 2000-05-15 | Verfahren zum Behandeln von erneut bebilderbaren Druckformen oder Druckformzylindern in Druckmaschinen |
DE10024184 | 2000-05-15 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1155871A2 true EP1155871A2 (de) | 2001-11-21 |
EP1155871A3 EP1155871A3 (de) | 2003-08-20 |
EP1155871B1 EP1155871B1 (de) | 2004-08-11 |
Family
ID=7642402
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01111023A Expired - Lifetime EP1155871B1 (de) | 2000-05-15 | 2001-05-08 | Verfahren zum Behandeln von erneut bebilderbaren Druckformen oder Druckformzylindern in Druckmaschinen |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1155871B1 (de) |
AT (1) | ATE273141T1 (de) |
DE (2) | DE10024184A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011097054A1 (en) * | 2010-02-03 | 2011-08-11 | Eastman Kodak Company | A method for fixing a flexographic plate |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007005815A1 (de) * | 2007-02-06 | 2008-08-07 | Maschinenfabrik Wifag | Bebilderung einer Offset-Druckform |
EP2269834A1 (de) | 2009-06-30 | 2011-01-05 | WIFAG Maschinenfabrik AG | Verfahren und Vorrichtung zum Ändern des Druckbildes auf einer Druckform |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4729310A (en) * | 1982-08-09 | 1988-03-08 | Milliken Research Corporation | Printing method |
JP2000015770A (ja) * | 1998-06-30 | 2000-01-18 | Think Laboratory Co Ltd | 印刷版の再利用方法 |
-
2000
- 2000-05-15 DE DE10024184A patent/DE10024184A1/de not_active Withdrawn
-
2001
- 2001-05-08 EP EP01111023A patent/EP1155871B1/de not_active Expired - Lifetime
- 2001-05-08 AT AT01111023T patent/ATE273141T1/de not_active IP Right Cessation
- 2001-05-08 DE DE50103183T patent/DE50103183D1/de not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4729310A (en) * | 1982-08-09 | 1988-03-08 | Milliken Research Corporation | Printing method |
JP2000015770A (ja) * | 1998-06-30 | 2000-01-18 | Think Laboratory Co Ltd | 印刷版の再利用方法 |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 04, 31. August 2000 (2000-08-31) & JP 2000 015770 A (THINK LABORATORY CO LTD), 18. Januar 2000 (2000-01-18) * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011097054A1 (en) * | 2010-02-03 | 2011-08-11 | Eastman Kodak Company | A method for fixing a flexographic plate |
US8318406B2 (en) | 2010-02-03 | 2012-11-27 | Eastman Kodak Company | Method for fixing a flexographic plate |
Also Published As
Publication number | Publication date |
---|---|
DE10024184A1 (de) | 2001-11-22 |
EP1155871A3 (de) | 2003-08-20 |
DE50103183D1 (de) | 2004-09-16 |
EP1155871B1 (de) | 2004-08-11 |
ATE273141T1 (de) | 2004-08-15 |
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