Additives for lead- and cadmium-free glazes

Details Additives for lead- and cadmium-free glazes Additives for lead- and cadmium-free glazes

1991-07-01

1993-03-16

Beck, Shrive

Coating processes

With post-treatment of coating or coating material

Heating or drying

427215, 427217, 427242, B05D 302

Patent

active

051943034

ABSTRACT:
This invention relates to a method for eliminating the grayish discoloration which commonly develops when lead-free and cadmium-free glass frits are applied to substrates utilizing an organic medium and thereafter fired to fuse the frit particles into a glaze. The grayish discoloration contains a carbonaceous residue from the organic medium. The method comprises the four general steps:

REFERENCES:
patent: 4025667 (1977-05-01), Tomb et al.
patent: 4130671 (1978-12-01), Nagesh et al.
patent: 4446241 (1984-05-01), Francel et al.

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