Method for printing on a portable data medium, particularly a smart card, and resulting printed data medium
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Aug 22, 2000
Grant Date -
N/A
app pub date -
Feb 25, 1999
filing date -
Jun 11, 1996
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method for printing on an exposed polymerised thermoplastic or curable layer of the body of a portable data medium, and a portable data medium particularly a chip card, comprising a polymerised layer, are disclosed. The method comprises the steps of mixing a polymerisable thermoplastic or curable binder and at least one light-sensitive compound responsive to laser radiation having a predetermined wavelength in such a way that it changes from a first state to a second coloured state, in order to form a mixture, exposing the mixture to the laser radiation having a predetermined wavelength; and polymerising the mixture to form the polymerised layer of the body of the data medium. The method is particularly suitable for printing on smart cards.
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