LASER LETTERING OF CERAMIC MATERIALS, GLAZES, GLASS CERAMICS AND GLASSES

摘要

The method for laser lettering of ceramic materials, glazes, glass ceramics and glasses in any desired shape is characterised in that a 100 to 10,000 ANGSTROM thick transparent titanium dioxide layer is applied to the material to be lettered and this oxide layer is then irradiated with a pulsed laser, the radiation being directed onto the oxide layer corresponding to the form of the marking to be applied, and that laser light of a wavelength is used which is sufficiently absorbed by the oxide layer, so that discoloration of the oxide layer is produced in the irradiated areas.