Invention Grant
- Patent Title: Method and system for manufacturing intaglio printing plates for the production of security papers
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Application No.: US12992522Application Date: 2009-05-05
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Publication No.: US09796202B2Publication Date: 2017-10-24
- Inventor: Jacques Perrier
- Applicant: Jacques Perrier
- Applicant Address: CH Lausanne
- Assignee: KBA-NotaSys SA
- Current Assignee: KBA-NotaSys SA
- Current Assignee Address: CH Lausanne
- Agency: Seager, Tufte & Wickhem LLP
- Priority: EP08156392 20080516
- International Application: PCT/IB2009/051838 WO 20090505
- International Announcement: WO2009/138901 WO 20091119
- Main IPC: B23K26/00
- IPC: B23K26/00 ; B41N3/00 ; B41C1/05 ; B23K26/70 ; B41M1/10 ; B41M3/14 ; B41N1/06

Abstract:
There is described a method for manufacturing intaglio printing plates for the production of security papers, wherein a laser beam (2) is used to engrave intaglio printing patterns (3, 3.1, 3.2, 3.3) directly into the surface of a laser-engravable, especially metallic, printing plate medium (1), wherein laser engraving of the printing plate medium (1) is carried out layer by layer in several individual engraving steps performed one after the other in register so that the intaglio printing patterns (3, 3.1, 3.2, 3.3) are gradually engraved into the surface of the printing plate medium (1) up to desired engraving depths, the surface of the engraved printing plate medium (1) being cleaned from residues of the laser engraving process following and between each individual engraving step.
Public/Granted literature
- US20110068509A1 Method and System for Manufacturing Intaglio Printing Plates for the Production of Security Papers Public/Granted day:2011-03-24
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