EP 1560715 A2 20050810 - LASER MARKING PROCESS
Title (en)
LASER MARKING PROCESS
Title (de)
VERFAHREN ZUR LASERBESCHRIFTUNG
Title (fr)
PROCEDE DE MARQUAGE AU LASER
Publication
Application
Priority
- GB 0226597 A 20021114
- US 0336222 W 20031112
Abstract (en)
[origin: WO2004045857A2] Thin, flexible plastic films, of the type used for the packaging of foodstuffs, may be printed using a laser marking technique by printing a layer or layers comprising a laser sensitive material and an ink so that heating of the laser sensitive material by absorption of laser radiation burns the ink selectively, so causing markings to appear. A further process for marking a flexible plastic material using a laser is disclosed, whereby to a surface of a substrate comprising said flexible plastic material a laser sensitive material which is or is associated with a material that generates gas on heating is applied, this is coated with a gas impermeable layer, then exposed to laser radiation such that raised markings appear on the exposed portions.
IPC 1-7
IPC 8 full level
B41M 3/06 (2006.01); B41M 5/24 (2006.01); B41M 5/26 (2006.01); B41M 5/46 (2006.01)
CPC (source: EP)
B41M 5/24 (2013.01); B41M 5/267 (2013.01); B41M 5/465 (2013.01)
Citation (search report)
See references of WO 2004045857A2
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 PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2004045857 A2 20040603; WO 2004045857 A3 20040708; AT E411906 T1 20081115; AU 2003290814 A1 20040615; AU 2003290814 A8 20040615; BR 0307991 A 20041221; CA 2506979 A1 20040603; DE 60324311 D1 20081204; EC SP055842 A 20050920; EP 1560715 A2 20050810; EP 1560715 B1 20081022; EP 1560715 B2 20140820; ES 2311747 T3 20090216; ES 2311747 T5 20141203; GB 0226597 D0 20021224; MX PA05006190 A 20050921; ZA 200504580 B 20060628
DOCDB simple family (application)
US 0336222 W 20031112; AT 03783398 T 20031112; AU 2003290814 A 20031112; BR 0307991 A 20031112; CA 2506979 A 20031112; DE 60324311 T 20031112; EC SP055842 A 20050608; EP 03783398 A 20031112; ES 03783398 T 20031112; GB 0226597 A 20021114; MX PA05006190 A 20031112; ZA 200504580 A 20050603