High contrast surface marking using mixed organic pigments

Details High contrast surface marking using mixed organic pigments High contrast surface marking using mixed organic pigments

2005-02-15

2005-02-15

Evans, Geoffrey S. (Department: 1725)

Electric heating

Metal heating

By arc

C427S555000

Reexamination Certificate

active

06855910

ABSTRACT:
A method of laser marking metals, plastics, ceramic materials, glazes, glass ceramics, and glasses of any desired form, which includes applying to the material to be marked a variable thickness layer of marking material containing energy absorbing enhancers then irradiating said layer with a laser or diode based energy source such that the radiation is directed onto said layer in accordance with the form of the marking to be applied, and using a laser or diode based energy source of a wavelength which is sufficiently absorbed by the marking material so as to create a bonding of the marking material to the surface of the workpiece at the irradiated areas.

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Authors: Karheinz Hahn, Claudia Buerhop, and Rudolf WeiBmann, Title: “Finring PbO-free glass enamels using the cw-CO2 laser”, Date: Received Nov. 11, 1995.

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