EP1258350A3 - Method and apparatus for imaging in printing machines - Google Patents

Method and apparatus for imaging in printing machines Download PDF

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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
Application number
EP02007602A
Other languages
German (de)
French (fr)
Other versions
EP1258350B1 (en
EP1258350A2 (en
Inventor
Arndt Jentzsch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koenig and Bauer AG
Original Assignee
Koenig and Bauer AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Koenig and Bauer AG filed Critical Koenig and Bauer AG
Publication of EP1258350A2 publication Critical patent/EP1258350A2/en
Publication of EP1258350A3 publication Critical patent/EP1258350A3/en
Application granted granted Critical
Publication of EP1258350B1 publication Critical patent/EP1258350B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41CPROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C1/00Forme preparation
    • B41C1/10Forme preparation for lithographic printing; Master sheets for transferring a lithographic image to the forme
    • B41C1/1075Mechanical aspects of on-press plate preparation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41CPROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C1/00Forme preparation
    • B41C1/10Forme preparation for lithographic printing; Master sheets for transferring a lithographic image to the forme
    • B41C1/1008Forme 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
    • B41C1/1033Forme 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41PINDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2227/00Mounting or handling printing plates; Forming printing surfaces in situ
    • B41P2227/70Forming 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.

Figure 00000001
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.
Figure 00000001

EP20020007602 2001-05-16 2002-04-04 Method and apparatus for imaging in printing machines Expired - Fee Related EP1258350B1 (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (5)

* Cited by examiner, † Cited by third party
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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