Laser marking on a coated substrate
OwnerHussein M. Sahiinventor
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Abstract
A method of utilizing laser energy to mark on a coated substrate is disclosed, wherein the coating is dried at a temperature below that necessary to permanently affix the coating to the substrate prior to the coated substrate being exposed to said laser energy. The dried coating is selectively removed by the laser energy in precise patterns that can be quickly and widely varied. The method of the present invention can be incorporated as a component of time-critical manufacturing processes.
Claims15
A method for marking on a coated substrate, comprising:
- a) supplying a non-conductive substrate having a surface;
- b) applying a coating to said surface of the non-conductive substrate;
- c) drying said coating at a temperature of less than 1000° F.;
- d) directing a source of energy in the form of a laser beam in a predetermined pattern on to said dried coating.
A method for marking on a substrate, comprising:
- a) supplying a non-conductive substrate;
- b) applying a coating to said non-conductive substrate;
- c) drying said coating;
- d) directing a laser beam in a pre-determined pattern onto said dried coating;
- e) heating said dried, marked coated substrate to a temperature and for a time sufficient to permanently affix said marked coating to said substrate.
Providing a substrate having a coating applied to a surface thereof, drying said coating at a temperature of less than 1000° F.;
- directing a source of energy in the form of a laser beam in a predetermined pattern on to said dried coating, thereby selectively removing that portion of said coating to which said source of laser energy has been directed.
Dependencies are inferred from the claim text.