EP 0938418 A1 19990901 - PROCESS FOR THE MANUFACTURE OF AN OBJECT WITH A COLOURED MARKING
Title (en)
PROCESS FOR THE MANUFACTURE OF AN OBJECT WITH A COLOURED MARKING
Title (de)
VERFAHREN ZUR HERSTELLUNG EINES FORMKÖRPERS MIT EINER FARBIGEN MARKIERUNG
Title (fr)
PROCEDE DE FABRICATION D'UN OBJET A MARQUAGE DE COULEUR
Publication
Application
Priority
- BE 9600945 A 19961107
- NL 9700608 W 19971105
Abstract (en)
[origin: WO9819868A1] The invention relates to a process for the manufacture of an object with a coloured marking by irradiating the surface of the object with laser light in the form of the marking, wherein at least at the place where the marking is applied the object consists of a plastic composition comprising at least three prechrome compounds which only acquire their colour-generating capacity after a colour-generating treatment and which under the influence of laser light can lose their colour-generating capacity again, the surface of the object being subjected to the colour-generating treatment at least at the place where the marking is applied, after which the surface of the object is irradiated with laser light in the shape of the marking, the prechrome compounds having been chosen such that and being present in such a concentration that with each wavelength between 400 and 700 nanometers at least part of the amount of incident light is absorbed.
IPC 1-7
IPC 8 full level
B41M 5/36 (2006.01); B41M 5/26 (2006.01); B41M 5/34 (2006.01); G03C 1/73 (2006.01); G03C 7/02 (2006.01); G03C 7/46 (2006.01)
CPC (source: EP KR)
B41M 5/267 (2013.01 - EP); B41M 5/34 (2013.01 - EP); B41M 5/36 (2013.01 - KR); G03C 7/02 (2013.01 - EP); G03C 7/46 (2013.01 - EP)
Citation (search report)
See references of WO 9819868A1
Designated contracting state (EPC)
DE ES FR GB IT NL
DOCDB simple family (publication)
WO 9819868 A1 19980514; AU 4969297 A 19980529; BE 1010743 A3 19990105; BR 9713495 A 20010703; CN 1091696 C 20021002; CN 1242743 A 20000126; DE 69705534 D1 20010809; DE 69705534 T2 20020516; EP 0938418 A1 19990901; EP 0938418 B1 20010704; ES 2160332 T3 20011101; JP 2001503877 A 20010321; KR 20000053133 A 20000825
DOCDB simple family (application)
NL 9700608 W 19971105; AU 4969297 A 19971105; BE 9600945 A 19961107; BR 9713495 A 19971105; CN 97181219 A 19971105; DE 69705534 T 19971105; EP 97912561 A 19971105; ES 97912561 T 19971105; JP 52125598 A 19971105; KR 19997004062 A 19990507