Global Patent Index - EP 0868309 B1

EP 0868309 B1 2000-08-02 - PROCESS FOR THE MANUFACTURE OF A COLOUR-MARKED OBJECT

Title (en)

PROCESS FOR THE MANUFACTURE OF A COLOUR-MARKED OBJECT

Title (de)

VERFAHREN ZUR HERSTELLUNG EINES GEGENSTANDS MIT FARBIGEN MARKIERUNG

Title (fr)

PROCESSUS DE FABRICATION D'UN ARTICLE AVEC UNE MARQUE COLOREE

Publication

EP 0868309 B1 (EN)

Application

EP 96941221 A

Priority

  • NL 9600470 W
  • NL 1001784 A

Abstract (en)

[origin: WO9721550A1] Process for the manufacture of a colour-marked object by irradiating the surface of the object with laser light, characterized in that the object, at least at the location where the marking is applied, consists of a plastic composition which contains at least three light-absorbing components which exhibit a maximum in their light absorption spectra at different wavelengths and lose their light-absorbing capacity under the influence of laser light, with the marking being applied in the form of matrix dots by irradiating the object's surface at the location of the matrix dots with laser light of such wavelength and intensity and for such duration that at least one of the light-absorbing components has wholly or partially lost its light-absorbing capacity.

IPC 1-7 (main, further and additional classification)

B41M 5/28; B41M 5/24; B41M 5/26

IPC 8 full level (invention and additional information)

B41M 5/382 (2006.01); B41M 5/26 (2006.01); B41M 5/46 (2006.01)

CPC (invention and additional information)

B41M 5/267 (2013.01)

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB GR IE IT LI NL PT SE

EPO simple patent family

WO 9721550 A1 19970619; AT 195100 T 20000815; AU 1041997 A 19970703; AU 704581 B2 19990429; CN 1076289 C 20011219; CN 1208376 A 19990217; CZ 9801678 A3 19981111; DE 69609629 D1 20000907; DE 69609629 T2 20010412; EP 0868309 A1 19981007; EP 0868309 B1 20000802; ES 2150148 T3 20001116; HK 1019721 A1 20020726; HU 9901261 A2 19990830; HU 9901261 A3 20021128; IL 124686 D0 19981206; JP 2000501042 A 20000202; NL 1001784 C2 19970604; PL 326974 A1 19981109; PT 868309 E 20010131

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