EP 3291999 A1 20180314 - SECURITY FEATURE AND METHOD FOR PRODUCING THE SAME
Title (en)
SECURITY FEATURE AND METHOD FOR PRODUCING THE SAME
Title (de)
SICHERHEITSMERKMAL UND VERFAHREN ZU DESSEN HERSTELLUNG
Title (fr)
CARACTÉRISTIQUE DE SÉCURITÉ ET PROCÉDÉ DE PRODUCTION DE CELLE-CI
Publication
Application
Priority
- DE 102015005672 A 20150504
- EP 2016000595 W 20160411
Abstract (en)
[origin: WO2016177447A1] The invention relates to a method for producing a security feature for a security element, a security paper or a data carrier, which comprises a substrate (18), wherein the substrate (18) is provided with a marking substance (19), which can be modified in its colour by laser radiation (44), holes (16) that have a rim and are of a certain hole cross section (C) are introduced into the substrate (18) by the effect of laser radiation (44) that is distributed in intensity in the beam cross section (30), wherein at the same time, on account of the intensity distribution (30) over the beam cross section, the marking substance (19) is modified by the laser radiation (44) in a zone (20) that surrounds the rim and is of a certain zone width (A) such that the ring is coloured, wherein the holes (16) perforate an area (14) and all neighbouring holes within the area (14) are arranged at a centre-to-centre hole spacing (D) from one another that is no greater than 2.5 times the sum of the maximum hole diameter and twice the zone width (A).
IPC 8 full level
B42D 25/41 (2014.01); B42D 25/435 (2014.01)
CPC (source: EP)
B42D 25/41 (2014.10); B42D 25/435 (2014.10)
Citation (search report)
See references of WO 2016177447A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2016177447 A1 20161110; DE 102015005672 A1 20161110; EP 3291999 A1 20180314; EP 3291999 B1 20190403; ES 2730450 T3 20191111; PL 3291999 T3 20191031
DOCDB simple family (application)
EP 2016000595 W 20160411; DE 102015005672 A 20150504; EP 16716165 A 20160411; ES 16716165 T 20160411; PL 16716165 T 20160411