COMBINATION AND METHOD FOR OBTAINING BACTERICIDAL CERAMIC ENAMELS FOR CERAMIC PRODUCTS

• Main Authors: MENÉNDEZ MEDINA, JOSÉ JAVIER, FERNÁNDEZ LOZANO, JOSÉ FRANCISCO, JAQUOTOT GARCÍA, PEDRO JOSÉ, JIMÉNEZ REINOSA, JULIÁN, CAMPILLO MARTÍNEZ, ÁNGEL
• Format: Patent
• Language: English; French; German
• Published: 30.07.2014
• Subjects: ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; GLASS; JOINING GLASS TO GLASS OR OTHER MATERIALS; LIME, MAGNESIA; METALLURGY; MINERAL OR SLAG WOOL; REFRACTORIES; SLAG; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS; SURFACE TREATMENT OF GLASS; TREATMENT OF NATURAL STONE

The invention relates to a combination for a bactericidal ceramic enamel with micro-roughness, characterised in that it comprises a first formulation and a second formulation, each formulation having a defined quantity of zinc cations, such that the first formulation comprises an equivalent percentage of ZnO of < 20 wt. %, and the second formulation comprises an equivalent percentage of ZnO of less than the nominal corresponding to the composition of the first formulation. The invention also relates to a bactericidal ceramic enamel comprising the combination of formulations arranged such that the first formulation forms an outer layer of enamel in contact with the air and the second formulation forms an inner layer of enamel in contact with a surface, the outer layer being thinner than the inner layer, and to the use of the combination or the bactericidal enamel for applying to substrates and obtaining enamelled materials.