EP1179426B1 - Verfahren zur Erzeugung einer Druckform - Google Patents
Verfahren zur Erzeugung einer Druckform Download PDFInfo
- Publication number
- EP1179426B1 EP1179426B1 EP01115576A EP01115576A EP1179426B1 EP 1179426 B1 EP1179426 B1 EP 1179426B1 EP 01115576 A EP01115576 A EP 01115576A EP 01115576 A EP01115576 A EP 01115576A EP 1179426 B1 EP1179426 B1 EP 1179426B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- toner
- printing
- cylinder
- printing forme
- image
- 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
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
- B41C1/00—Forme preparation
- B41C1/10—Forme preparation for lithographic printing; Master sheets for transferring a lithographic image to the forme
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
- B41C1/00—Forme preparation
- B41C1/10—Forme preparation for lithographic printing; Master sheets for transferring a lithographic image to the forme
- B41C1/1008—Forme preparation for lithographic printing; Master sheets for transferring a lithographic image to the forme by removal or destruction of lithographic material on the lithographic support, e.g. by laser or spark ablation; by the use of materials rendered soluble or insoluble by heat exposure, e.g. by heat produced from a light to heat transforming system; by on-the-press exposure or on-the-press development, e.g. by the fountain of photolithographic materials
- B41C1/1025—Forme preparation for lithographic printing; Master sheets for transferring a lithographic image to the forme by removal or destruction of lithographic material on the lithographic support, e.g. by laser or spark ablation; by the use of materials rendered soluble or insoluble by heat exposure, e.g. by heat produced from a light to heat transforming system; by on-the-press exposure or on-the-press development, e.g. by the fountain of photolithographic materials using materials comprising a polymeric matrix containing a polymeric particulate material, e.g. hydrophobic heat coalescing particles
Definitions
- the invention relates to a method for generating a print image information carrying printing form on a printing form cylinder in a printing machine.
- the object of the invention is to provide a method for generating an erasable Printing form on the printing form cylinder in a printing machine with little effort and high service life.
- a printing form cylinder of a printing press is shown.
- the printing form cylinder 1 is equipped with a semiconductor surface 2, wherein the semiconductor surface 2 expediently has hydrophilic properties.
- the semiconductor surface 2 is provided with image-bearing areas 3 of a previous print job, wherein the image-bearing sites are hydrophobic.
- new image-bearing points 3 ' can be applied to remove the image-bearing points 3 of the previous print job.
- the removal of the Image-bearing points 3 of the previous print job is done with a printing forme cylinder 1 associated extinguishing device 4, this extinguishing device 4 operates on a laser basis.
- the extinguishing device 4 is arranged traversing the width of the printing forme cylinder 1 or extends over the entire width of the printing cylinder. 1
- FIG. 2 shows the process step of polarization of the new image-carrying areas 3 'of the semiconductor surface 2.
- the new image-bearing points 3 'of a new print job are polarized by means of a polarization device 6.
- Polarization means that the polarized sites 5 are made susceptible to the toner 7 to be applied later.
- the polarization device 6 is connected to a storage device (not shown) for the digitally present matrix of the image-carrying points.
- the polarization device 6 is like the quenching device 4 traversing or arranged over the entire width of the plate cylinder 1 reaching.
- the semiconductor surface 2 is applied of the printing plate cylinder 1 toner 7 applied.
- the toner 7 is preferably powdery, but can also be pasty or liquid.
- the toner 7 adheres to the non-polarized sites 8, the toner can not adhere, d. H. these places remain free of toner.
- the application of toner 7 is carried out by means for applying of toner 9. This device is like the polarizer traversing or over arranged the entire width of the plate cylinder 1.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Printing Methods (AREA)
- Manufacture Or Reproduction Of Printing Formes (AREA)
- Thermal Transfer Or Thermal Recording In General (AREA)
- Laser Beam Printer (AREA)
- Combination Of More Than One Step In Electrophotography (AREA)
- Printing Plates And Materials Therefor (AREA)
Description
- Fig. 1
- Druckformzylinder mit Löscheinrichtung
- Fig. 2
- Druckformzylinder mit Polarisationseinrichtung
- Fig. 3
- Druckformzylinder mit Einrichtung zum Aufbringen von Toner
- Fig. 4
- Druckformzylinder mit Verfestigungseinrichtung
Die Halbleiteroberfläche 2 ist mit bildtragenden Stellen 3 eines vorherigen Druckauftrages versehen, wobei die bildtragenden Stellen hydrophob sind.
Polarisation bedeutet, daß die polarisierten Stellen 5 für den später aufzubringenden Toner 7 empfänglich gemacht werden. Die Polarisationseinrichtung 6 ist mit einer nicht dargestellten Speichereinrichtung für die digital vorliegende Matrix der bildtragenden Stellen verbunden. Die Polarisationseinrichtung 6 ist wie die Löscheinrichtung 4 traversierend oder über die gesamte Breite des Druckformzylinders 1 reichend angeordnet.
- 1
- Druckformzylinder
- 2
- Halbleiteroberfläche
- 3
- bildtragende Stelle (alter Druckauftrag)
- 3'
- bildtragende Stelle (neu)
- 4
- Löscheinrichtung
- 5
- polarisierte Stelle
- 6
- Polarisationseinrichtung
- 7
- Toner
- 8
- nicht polarisierte Stelle
- 9
- Einrichtung zum Aufbringen von Toner
- 10
- Verfestigungseinrichtung
Claims (4)
- Verfahren zur Erzeugung einer eine Druckbildinformation tragenden Druckform auf einem Druckformzylinder in einer Druckmaschine, dadurch gekennzeichnet, daß der Druckformzylinder (1) eine Halbleiteroberfläche (2) aufweist, die Halbleiteroberfläche bildtragend polarisiert, an den bildtragenden Stellen (3) mit Toner (7) beschichtet, der Toner fest mit dem Druckformzylinder verbunden, mit der entstandenen Druckform gedruckt und nach dem Druckprozess der fest mit dem Druckformzylinder verbundene Toner mittels Laser entfernt wird.
- Verfahren zur Erzeugung einer eine Druckbildinformation tragenden Druckform nach Anspruch 1, dadurch gekennzeichnet, daß der Toner (7) eine pulverförmige, pastöse oder flüssige Konsistenz aufweist.
- Verfahren zur Erzeugung einer eine Druckbildinformation tragenden Druckform nach Anspruch 1, dadurch gekennzeichnet, daß der Toner (7) eingebrannt wird.
- Verfahren zur Erzeugung einer eine Druckbildinformation tragenden Druckform nach Anspruch 1, dadurch gekennzeichnet, daß der Toner (7) ausgehärtet wird.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10039819A DE10039819A1 (de) | 2000-08-09 | 2000-08-09 | Verfahren zur Erzeugung einer Druckform |
DE10039819 | 2000-08-09 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1179426A2 EP1179426A2 (de) | 2002-02-13 |
EP1179426A3 EP1179426A3 (de) | 2003-08-20 |
EP1179426B1 true EP1179426B1 (de) | 2005-08-24 |
Family
ID=7652479
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01115576A Expired - Lifetime EP1179426B1 (de) | 2000-08-09 | 2001-06-28 | Verfahren zur Erzeugung einer Druckform |
Country Status (4)
Country | Link |
---|---|
US (2) | US20020050218A1 (de) |
EP (1) | EP1179426B1 (de) |
AT (1) | ATE302689T1 (de) |
DE (2) | DE10039819A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7822643B2 (en) * | 2005-11-10 | 2010-10-26 | Lifereel, Inc. | Presentation production system |
BR112015007692A2 (pt) * | 2015-03-18 | 2018-09-25 | Daniel Goncalves Fortunato | aperfeiçoamentos introduzidos em processo de produção de chapas de impressão não metal e produto resultante. |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3911934C2 (de) * | 1989-04-12 | 1995-08-24 | Krause Biagosch Gmbh | Offsetdruckform und Verfahren zur Herstellung dieser Druckform |
JPH09114255A (ja) * | 1995-10-19 | 1997-05-02 | Fuji Xerox Co Ltd | 画像形成方法および装置 |
DE19602328A1 (de) * | 1996-01-24 | 1997-07-31 | Roland Man Druckmasch | Verfahren zum Bebildern einer löschbaren Druckform |
-
2000
- 2000-08-09 DE DE10039819A patent/DE10039819A1/de not_active Withdrawn
-
2001
- 2001-06-28 EP EP01115576A patent/EP1179426B1/de not_active Expired - Lifetime
- 2001-06-28 DE DE50107182T patent/DE50107182D1/de not_active Expired - Lifetime
- 2001-06-28 AT AT01115576T patent/ATE302689T1/de not_active IP Right Cessation
- 2001-08-07 US US09/924,161 patent/US20020050218A1/en not_active Abandoned
- 2001-08-07 US US09/924,160 patent/US20020040652A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
ATE302689T1 (de) | 2005-09-15 |
DE50107182D1 (de) | 2005-09-29 |
US20020040652A1 (en) | 2002-04-11 |
EP1179426A2 (de) | 2002-02-13 |
DE10039819A1 (de) | 2002-02-21 |
US20020050218A1 (en) | 2002-05-02 |
EP1179426A3 (de) | 2003-08-20 |
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