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Patent
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G03F 7/26 (2006.01) B44C 1/22 (2006.01) G03F 7/00 (2006.01) G03F 7/12 (2006.01) G03F 7/16 (2006.01) G03F 7/34 (2006.01) H05K 3/00 (2006.01)
Patent
CA 1260266
ABSTRACT A method is provided for acid etching or sandblasting decorative designs in the smooth surface of hard substrates such as glass, ceramics, plastics, and marble, granite, or other stones. A dry film photoresist, preferrably a solder mask, is applied to the smooth surface without the addition of heat. The decorative design is placed on the dry film by exposing the dry film to ultraviolet light through a negative of the design to place the design on the surface of the photoresist. The dry film is then developed to remove a portion of it. The smooth surface is then-acid etched or sandblasted, with the portion of the dry film remaining on the smooth surface protecting that portion of the smooth surface from the acid etching or sandblasting process. An apparatus is also provided for applying the dry film photoresist to the substrate.
518398
Burkes Dewey L.
Pentak William F.
Ridout & Maybee Llp
Vacuum Applied Coatings Corp.
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