Stock material or miscellaneous articles – Two dimensionally sectional layer – Next to unitary web or sheet of equal or greater extent
Patent
1997-04-11
1999-02-02
Epstein, Henry F.
Stock material or miscellaneous articles
Two dimensionally sectional layer
Next to unitary web or sheet of equal or greater extent
156 63, B44F 1104
Patent
active
058662251
ABSTRACT:
Disclosed herein is an improved method of producing a mosaic design on the surface of a ceramic tile substrate and the resultant mosaic tile article manufactured thereby. A selected glaze coating is initially applied to the tile substrate upon specific surface areas predetermined for coloration as part of the mosaic design with the glaze coating being varied in hardness dependent upon the intended architectural or other use of the tile. After firing the selectively glazed tile substrate to harden the coating, a ceramic coloration pattern of the mosaic design is applied over the glaze coating using direct printing or decal transfer to produce a decorated tile. After re-firing the decorate tile, a resist medium is further applied over the colored and glazed areas as a mask, leaving the intermediate areas of the tile substrate unmasked. After curing of the resist medium, conventional sandblasting or other engraving techniques are employed to remove substrate material from the unmasked areas to a desired depth thereby creating realistic grout line spaces intermediate of the colored areas. The excess resist medium is then removed from the surface of the substrate and the entire surface of the resultant mosaic tile article re-coated with a clear protective glaze, as may be necessary for certain architectural applications prior to use.
REFERENCES:
patent: 4522855 (1985-06-01), Bethea
patent: 4621001 (1986-11-01), Bard
patent: 4931331 (1990-06-01), Owens
patent: 5328730 (1994-07-01), Lowe
patent: 5583079 (1996-12-01), Golitz et al.
Epstein Henry F.
Vitrium Corporation
Vozzo, Jr. Armand M.
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