EP1258350A3 - Method and apparatus for imaging in printing machines - Google Patents
Method and apparatus for imaging in printing machines Download PDFInfo
- Publication number
- EP1258350A3 EP1258350A3 EP02007602A EP02007602A EP1258350A3 EP 1258350 A3 EP1258350 A3 EP 1258350A3 EP 02007602 A EP02007602 A EP 02007602A EP 02007602 A EP02007602 A EP 02007602A EP 1258350 A3 EP1258350 A3 EP 1258350A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- image carrier
- imaging
- oxygen
- imaging device
- print 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.)
- Granted
Links
Classifications
-
- 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
- B41C1/1075—Mechanical aspects of on-press plate preparation
-
- 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
- B41C1/1033—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 by laser or spark ablation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2227/00—Mounting or handling printing plates; Forming printing surfaces in situ
- B41P2227/70—Forming the printing surface directly on the form cylinder
Abstract
Die Erfindung betrifft ein Verfahren zum Bebildern in Druckmaschinen, bei dem der Plattenzylinder als Druckbildträger ausgebildet oder mit einem als Druckplatte oder Sleeve ausgebildeten Druckbildträger versehen ist, eine ablatierbare Beschichtung auf den Druckbildträger aufgebracht und diese zum Erzeugen von motivbildenden Stellen durch eine thermisch arbeitende Bebilderungseinrichtung ablatiert wird.The invention relates to a method for imaging in printing presses, wherein the plate cylinder designed as a print image carrier or formed with a pressure plate or sleeve Printed image carrier is provided, an ablatable coating on the print image carrier applied and these for generating motivational bodies by a thermal working imaging device is ablated.
Die Aufgabe der Erfindung besteht darin, ein Verfahren und eine Einrichtung zum Bebildem zu entwickeln, durch welche der Energieeintrag wesentlich verringert wird.The object of the invention is to provide a method and a device for imaging to develop, by which the energy input is significantly reduced.
Erfindungsgemäß wird die Aufgabe durch ein Verfahren gelöst, bei dem auf einen Druckbildträger (4, 11, 12) eine ablatierbare Beschichtung aufgebracht wird und diese zum Erzeugen von motivbildenden Stellen durch eine thermisch arbeitende Bebilderungseinrichtung (91, 92) ablatiert wird, wobei dieser Verbrennungsvorgang lokal begrenzt unter Überschuss von Sauerstoff erfolgt und die Beschichtung Sauerstoffdonatoren in homogener, mikroskopisch feiner Verteilung aufweist und der Bebilderungseinrichtung (92) eine Sauerstoffsonde (922) zum punktgenauen Zuführen von Sauerstoff an deren aktuellen Wirkungsstelle zugeordnet ist. According to the invention, this object is achieved by a method in which an ablatable coating is applied to a print image carrier (4, 11, 12) and this is ablated by a thermally operating imaging device (91, 92) to produce image-forming points, this combustion process being local is limited under excess of oxygen and the coating oxygen donors in a homogeneous, microscopically fine distribution and the imaging device (92) is associated with an oxygen probe (922) for pinpoint delivery of oxygen at their current site of action.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2001123672 DE10123672B4 (en) | 2001-05-16 | 2001-05-16 | Method and system for imaging in printing presses |
DE10123672 | 2001-05-16 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1258350A2 EP1258350A2 (en) | 2002-11-20 |
EP1258350A3 true EP1258350A3 (en) | 2005-03-23 |
EP1258350B1 EP1258350B1 (en) | 2006-03-22 |
Family
ID=7684902
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20020007602 Expired - Fee Related EP1258350B1 (en) | 2001-05-16 | 2002-04-04 | Method and apparatus for imaging in printing machines |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1258350B1 (en) |
DE (2) | DE10123672B4 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005052156A1 (en) * | 2005-11-02 | 2007-05-03 | Man Roland Druckmaschinen Ag | Method for gravure print by means of detachable and reusable gravure cylinder, involves basic grid designed on maximal color quantity and impression of basic grid of gravure blank shape are simultaneously filled with filling material |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5249525A (en) * | 1988-08-19 | 1993-10-05 | Presstek, Inc. | Spark-discharge lithography plates containing image-support pigments |
EP0580393A2 (en) * | 1992-07-20 | 1994-01-26 | Presstek, Inc. | Lithographic printing plate |
US5353705A (en) * | 1992-07-20 | 1994-10-11 | Presstek, Inc. | Lithographic printing members having secondary ablation layers for use with laser-discharge imaging apparatus |
DE19817756A1 (en) * | 1997-05-01 | 1998-11-05 | Eastman Kodak Co | Method of producing image on lithographic element using laser |
US6087069A (en) * | 1999-04-16 | 2000-07-11 | Presstek, Inc. | Lithographic imaging and cleaning of printing members having boron ceramic layers |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IL122953A (en) * | 1998-01-15 | 2000-11-21 | Scitex Corp Ltd | Printing member for use with a printing system and method of imaging the printing member |
DE19840926B4 (en) * | 1998-09-08 | 2013-07-11 | Hell Gravure Systems Gmbh & Co. Kg | Arrangement for material processing by means of laser beams and their use |
-
2001
- 2001-05-16 DE DE2001123672 patent/DE10123672B4/en not_active Expired - Fee Related
-
2002
- 2002-04-04 EP EP20020007602 patent/EP1258350B1/en not_active Expired - Fee Related
- 2002-04-04 DE DE50206107T patent/DE50206107D1/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5249525A (en) * | 1988-08-19 | 1993-10-05 | Presstek, Inc. | Spark-discharge lithography plates containing image-support pigments |
EP0580393A2 (en) * | 1992-07-20 | 1994-01-26 | Presstek, Inc. | Lithographic printing plate |
US5353705A (en) * | 1992-07-20 | 1994-10-11 | Presstek, Inc. | Lithographic printing members having secondary ablation layers for use with laser-discharge imaging apparatus |
DE19817756A1 (en) * | 1997-05-01 | 1998-11-05 | Eastman Kodak Co | Method of producing image on lithographic element using laser |
US6087069A (en) * | 1999-04-16 | 2000-07-11 | Presstek, Inc. | Lithographic imaging and cleaning of printing members having boron ceramic layers |
Also Published As
Publication number | Publication date |
---|---|
DE10123672B4 (en) | 2006-12-21 |
DE10123672A1 (en) | 2002-12-05 |
EP1258350B1 (en) | 2006-03-22 |
EP1258350A2 (en) | 2002-11-20 |
DE50206107D1 (en) | 2006-05-11 |
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