Metallic glaze composition

• Main Authors: CABALLERO LOPEZ, MIGUEL ANGEL, PEREZ APARICIO, JOAQUIN JAVIER, NAVARRO SORIANO, ELENA, REVERTER IBANEZ, SILVIA
• Format: Patent
• Language: English; French; German
• Published: 10.12.2008
• Subjects: ADHESIVES; ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; DYES; GLASS; JOINING GLASS TO GLASS OR OTHER MATERIALS; LIME, MAGNESIA; METALLURGY; MINERAL OR SLAG WOOL; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; POLISHES; PREPARATION OF CARBON BLACK; REFRACTORIES; SLAG; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS; SURFACE TREATMENT OF GLASS; TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS,TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES; TREATMENT OF NATURAL STONE

The present document refers to a metallic glaze composition of the type used in the ceramics industry for the manufacture of ceramic flooring, ceramic coverings, structural ceramics, sanitary and porcelain ceramics with a metal-effect finish, characterised in that it comprises one or more ceramic pigments the composition of which comprises at least P 2 O 5 in a quantity ranging between 40 and 70% in weight, Fe 2 O 3 in a quantity ranging between 10 and 50% in weight and Li 2 O in a quantity ranging between 0 and 30% in weight, optionally containing other oxides, as well as additionally containing a special low-dilatation frit preparation for improving the properties of the metallised ceramic glazings, and characterised also by a specific procedure of synthesis in order to obtain said calcined metallic pigment. This invention permits a perfect metallic finish, and can be applied to products deriving from these pigments and frits such as metallised ceramic glazings, glaze slips, ceramic granulates and ceramic inks.