EP 1516956 A1 20050323 - Security elements with negative colored indicia
Title (en)
Security elements with negative colored indicia
Title (de)
Sicherheitselement mit negativen farbigen Codierungen
Title (fr)
Element de securité avec indications colorées négatives
Publication
Application
Priority
AT 14582003 A 20030917
Abstract (en)
In security element, having opaque layer(s) with partly or completely colored, (un)connected gaps on a transparent or translucent substrate, the substrate comprises a colored, flexible plastics film and those areas with the opaque coating are partly or completely decolorized with a bleach. Independent claims are also included for the following: (1) film material comprising the above opaque layer(s) with gaps and substrate film, optionally (partly) bleached in areas with opaque coating; (2) production of the security element comprising partial application of the bleach; application of the opaque (non)metallic coating and then the printing ink containing dye in a suitable solvent, followed by metallization and partial demetallization. The bleach and printing ink are applied by spin coating, spreading, vapor deposition, printing (gravure, flexographic, screen, offset or digital printing), spraying, sputtering or roll application.
Abstract (de)
Die Erfindung betrifft ein Sicherheitselement, das auf einem transparenten oder transluzenten Trägersubstrat mindestens eine opake Schicht mit zusammenhängenden oder nicht zusammenhängenden Aussparungen aufweist, wobei die Aussparungen partiell oder vollflächig färbig erscheinen, wobei als Trägersubstrat eine gefärbte flexible Kunststofffolie verwendet wird, wobei jene Bereiche der Kunststofffolie, die die opake Beschichtung aufweisen gegebenenfalls partiell oder vollflächig mittels eines Bleichmittels entfärbt sind.
IPC 1-7
IPC 8 full level
B42D 15/00 (2006.01); D21H 21/42 (2006.01); D21H 21/28 (2006.01)
CPC (source: EP)
B42D 25/355 (2014.10); D21H 21/42 (2013.01); D21H 21/28 (2013.01)
Citation (search report)
- [XD] EP 0330733 A1 19890906 - GAO GES AUTOMATION ORG [DE]
- [X] EP 0930174 A2 19990721 - GIESECKE & DEVRIENT GMBH [DE]
- [X] DE 3610379 A1 19871001 - SCHMOOCK HELMUTH
- [X] US 6199911 B1 20010313 - ISHERWOOD ROLAND [GB], et al
- [X] US 5688587 A 19971118 - BURCHARD THEO [DE], et al
- [X] WO 9945199 A1 19990910 - KOREA SECURITY PRINTING AND MI [KR], et al
- [A] DE 19739193 A1 19990311 - GIESECKE & DEVRIENT GMBH [DE]
- [AD] EP 0319157 A2 19890607 - PORTALS LTD [GB]
- [A] EP 1291463 A1 20030312 - HUECK FOLIEN GMBH [AT]
- [A] US 6616190 B1 20030909 - JOTCHAM RICHARD BRYAN [GB]
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1516956 A1 20050323; AT 504750 A1 20080815; AT 504750 B1 20090115
DOCDB simple family (application)
EP 04021871 A 20040915; AT 14582003 A 20030917