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US 5,238,593 AGranted
Composition and method for cleaning greenware and wetting expelled silica dust
OwnerFrances E. Jones, Gregory M. Jonesinventors
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Abstract
This present invention comprises a composition for cleaning unfired ceramic, porcelain and stoneware comprising a major amount of organic polar solvent, a small amount of glycerin and optionally minor amounts of dye and fragrance. The method of processing those materials without the risk associated with fine crystalline silica becoming air-borne is also described.
Claims8
A method of processing greenware without causing silica dust to become air-borne comprising the steps of:
- applying to unfired greenware an anhydrous composition comprising for a gallon of said composition:
- approximately one gallon of anhydrous polar organic solvent and approximately 0.25 to 10.0 milliliters per gallon of glycerin in a concentration sufficiently small so that it does not melt the greenware, wherein said composition is substantially free of water;
- cleaning, carving and polishing said greenware;
- rinsing said greenware with said composition;
- examining said greenware to remove any white dust residue and removing said dust from said greenware by rinsing with said composition;
- allowing said greenware to dry;
- and
- firing said greenware.
5 more elements
A method of processing greenware without causing silica dust to become air-borne comprising the steps of:
- applying to unfired greenware an anhydrous composition comprising in approximately a gallon of said composition:
- a gallon of anhydrous polar organic solvent selected from anhydrous isopropyl alcohol, methanol, ethanol and trichloroethylene;
- glycerin in a concentration of about 0.25 to 10.0 milliliters per gallon;
- approximately 10 milliliters of organic dye;
- and
- 0. 25 to 0.50 milliliters of oil based fragrance in minor amount;
- cleaning, carving and polishing said greenware;
- rinsing said greenware with said composition;
- examining said greenware to remove any white dust residue and removing said dust from said greenware by rinsing with said composition;
- allowing said greenware to dry;
- and
- firing said greenware.
9 more elements
Dependencies are inferred from the claim text.