公开(公告)号：EP2010389B1

公开(公告)日：2011-06-08

申请号：EP07735442.1

申请日：2007-04-10

Applicant: KBA-NotaSys SA

Inventor： MANFREDI, Renato ,  FORESTI, Jean-François

IPC: B41C1/05

CPC classification number: H04N1/405 ,  B41C1/05 ,  B41M1/10 ,  B41M3/14 ,  B42D25/21 ,  B42D2035/26

Abstract: A method is described for generating patterns representing a halftone image, said method comprising the generation of a first set of patterns (10) consisting of lines and curves dimensionally modulated so as to produce variations in tones reproducing the halftones of the image using an intaglio rendering technique. The method comprises the generation of a second set of patterns (20; 30) consisting of microstructures separate from the lines and curves of the first set of patterns, said microstructures being dimensionally modulated so as to produce variations in tones reproducing the halftones of the image. According to a first aspect of the invention, the microstructures consist of stochastic microstructures that can be likened to a grain. According to a second aspect of the invention, the microstructures consist of repetitive microstructures reproducing information that can be recognised by an observer, which repetitive microstructures comprise microletters and/or microsymbols. The second set of patterns is interlaced with the first set of patterns in such a way that the microstructures of the second set of patterns occupy the spaces between the lines and curves of the first set of patterns and so that the halftones reproduced by the second set of patterns supplement the halftones reproduced by the first set of patterns.

Abstract translation: 该方法涉及生成一组模式（10），其中线和曲线被调整以产生修正图像的半色调的色调变化。 产生具有与线和曲线不同的微结构的另一组图案（20），其中微观尺寸被调整以产生修正图像的半色调的色调变化。 这些图案是交错的，使得微结构占据线和曲线之间的空间，并且由图案（20）恢复的半色调完成由图案（10）恢复的半色调。 独立权利要求还包括以下内容：（1）半色调印版（2）的制造方法，其包括表示半色调图像的图案的雕刻板。

公开(公告)号：EP2004406B1

公开(公告)日：2011-10-05

申请号：EP07734167.5

申请日：2007-03-29

Applicant: KBA-NotaSys SA

Inventor： FORESTI, Jean-François ,  SCHAEDE, Johannes Georg ,  MOREAU, Vincent

IPC: B41F11/02 ,  B42D15/00 ,  B41M3/14 ,  B41M1/10

CPC classification number: B42D25/425 ,  B41F9/021 ,  B41F11/02 ,  B41M1/10 ,  B41M1/24 ,  B41M3/14 ,  B41M3/144 ,  B42D25/29 ,  B42D2033/20 ,  B42D2033/24

Abstract: There is described process for producing security papers, in particular banknotes, comprising the step of sealing the surface of the security papers by applying a protective pattern on the surface of the security paper, which sealing comprising printing the security papers by intaglio printing using an intaglio printing plate with engraved areas such that at least 80% of the whole surface of each security paper is covered with embossed intaglio patterns produced by engraved areas of the intaglio printing plate which are inked or with a combination of embossed intaglio patterns and flat intaglio patterns, which flat intaglio patterns are produced by unengraved areas of the intaglio printing plate which are inked after wiping of the intaglio printing plate, at least a part of the embossed intaglio patterns and/or flat intaglio patterns being printed with a transparent or semi-transparent intaglio ink. The transparent or semi-transparent intaglio ink is applied in engraved areas and/or unengraved areas of the intaglio printing plate so as to seal substantially the whole surface of the security papers with a protective pattern composed of intaglio patterns. Also described are intaglio printing presses for implementing the said process and the resulting security papers.

Abstract translation: 中描述了用于生产安全纸，特别是纸币的方法，包括打印由凹版印刷的安全纸的步骤，以便将大约覆盖各安全纸的整个表面与浮凸凹版图案或具有的浮凸凹版图案和平面的组合 凹版图案，至少浮凸凹版图案和/或扁平的凹版图案的一部分印有透明或半透明的凹版油墨。 透明或半透明的凹版油墨以雕刻区域和/或所述凹版印刷板的未雕刻区域中的应用，以便基本上密封所述安全纸的整个表面上用凹版图案。所以描述的是凹版印刷机用于执行上述 过程和产生的防伪纸。