EP 1230094 A2 20020814 - METHOD FOR APPLYING COLOURED CHARACTERS ON A DATA STORAGE MEDIUM WHICH IS PREFERABLY MADE FROM PLASTIC AND DATA STORAGE MEDIA ACCORDING TO SAID METHOD
Title (en)
METHOD FOR APPLYING COLOURED CHARACTERS ON A DATA STORAGE MEDIUM WHICH IS PREFERABLY MADE FROM PLASTIC AND DATA STORAGE MEDIA ACCORDING TO SAID METHOD
Title (de)
VERFAHREN ZUR AUFBRINGUNG VON FARBIGEN ZEICHEN AUF EINEN DATENTRÄGER VORZUGSWEISE AUS KUNSTSTOFF UND NACH DEM VERFAHREN HERGESTELLTER DATENTRÄGER
Title (fr)
PROCEDE POUR APPLIQUER DES MARQUES DE COULEUR SUR UN SUPPORT DE DONNEES, DE PREFERENCE EN MATIERE PLASTIQUE, ET SUPPORT DE DONNEES PRODUIT SELON LEDIT PROCEDE
Publication
Application
Priority
- DE 0003660 W 20001018
- DE 19950218 A 19991019
Abstract (en)
[origin: WO0128778A3] The invention relates to a method for applying coloured characters on a data storage medium, which is preferably made from plastic, by means of a laser system, whereby latent pigments are applied in at least one surface layer and/or surface adjacent layer. The absorption characteristics of said latent pigments can be changed by energetic stimulation. Said stimulation occurs in those areas of the surface of the data storage medium allotted to the characters, by means of laser radiation in the IR/visible region, whose energetic stimulation is such that a colour change occurs in said latent pigments. After said colour change in the laser irradiated latent pigments, the latent pigments which have not been stimulated by laser irradiation are irradiated by light in the UV wavelength region, whose energetic stimulation is such that the pigments, irradiated by this means, are rendered colourless.
IPC 1-7
IPC 8 full level
B41M 3/14 (2006.01); B41M 5/26 (2006.01); B41M 7/00 (2006.01)
CPC (source: EP)
B41M 5/267 (2013.01); B41M 7/0081 (2013.01); B41M 7/009 (2013.01); B41M 3/14 (2013.01); B41M 5/26 (2013.01)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0128778 A2 20010426; WO 0128778 A3 20011213; AT E257773 T1 20040115; AU 1994301 A 20010430; DE 10083149 D2 20020912; DE 50005042 D1 20040219; EP 1230094 A2 20020814; EP 1230094 B1 20040114; HK 1048789 A1 20030417
DOCDB simple family (application)
DE 0003660 W 20001018; AT 00983033 T 20001018; AU 1994301 A 20001018; DE 10083149 T 20001018; DE 50005042 T 20001018; EP 00983033 A 20001018; HK 03101003 A 20030212