EP 1616711 A1 20060118 - Intaglio printing plates for producing security features, product made by means of said printing plates
Title (en)
Intaglio printing plates for producing security features, product made by means of said printing plates
Title (de)
Tiefdruckformen für die Herstellung von Sicherheitsmerkmalen, mit diesen Tiefdruckformen hergestellte Produkte
Title (fr)
Plaques d'impression intaglio pour la fabrication d'éléments de sécurité, produit fabriqué au moyen desdites plaques
Publication
Application
Priority
DE 102004033664 A 20040712
Abstract (en)
An intaglio coded pattern may be engraved on a form cylinder in a rotary printing machine. The pattern may be derived from a data file in a computer. SureSign (RTM) or digital watermarks may be generated with data unreadable by the naked eye. The coded patterns may be printed in cyan, magenta, yellow and black, with different line spacings and angles to the horizontal.
IPC 8 full level
B41N 1/06 (2006.01); B41M 1/10 (2006.01); B41M 3/10 (2006.01); B41M 3/14 (2006.01)
CPC (source: EP)
B41C 1/05 (2013.01); B41M 1/10 (2013.01); B41M 3/10 (2013.01); B41M 3/14 (2013.01); B41N 1/06 (2013.01)
Citation (search report)
- [XY] EP 0981113 A2 20000223 - DIGIMARC CORP [US]
- [Y] GB 2034636 A 19800611 - CROSFIELD ELECTRONICS LTD
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
DOCDB simple family (application)
EP 05015042 A 20050712; DE 102004033664 A 20040712