Laser marking of ceramic materials, glazes, glass ceramics and g

Details Laser marking of ceramic materials, glazes, glass ceramics and g Laser marking of ceramic materials, glazes, glass ceramics and g

1987-01-30

1988-09-06

Schilling, Richard L.

Radiation imagery chemistry: process, composition, or product th

Visible imaging using radiation only other than heating by...

430495, 430540, 430945, 430964, 65 3011, 501 13, G03C 516, G03C 500, G03C 172, G03C 164

Patent

active

047693100

ABSTRACT:
A method of laser marking ceramic materials, glazes, glass ceramics and glasses that contain at least one radiation-sensitive additive, utilizing a laser beam as radiation energy source which is either applied to, or focused on, the surface of the material to be marked in accordance with the form of the graphic symbols to be reproduced, such that a change in color is induced at the irradiated areas, wherein the wavelength of said laser beam used as energy source is in the near UV and/or visible range and/or infra-red range, and the radiation-sensitive additive is an inorganic pigment.

REFERENCES:
patent: 2515275 (1950-07-01), Stookey
patent: 3359125 (1967-12-01), Bishop
patent: 4125405 (1978-11-01), Aranjo et al.
patent: 4160654 (1979-07-01), Bartholomew et al.
patent: 4297417 (1981-10-01), Wu
Ullmans Enzyklopaedie der Tech. Chemie, 4th ed., vol. 13, pp. 712-716.
Ullmans Enzyklopaedie, 4th ed., vol. 13, pp. 722-724.
Ullmans Enzyklopaedie, 4th ed., vol. 12, pp. 317-366.
Ullmans Enzyklopaedie, 4th ed., vol. 14, pp. 1-12.
Chem. Abst. 103, 26188n (1985).

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