Process for colouring ceramic materials

The invention relates to a new process for coloring ceramic materials by using aqueous solutions of chromophore ions. In particular, certain types of silica are added to the ceramic mixes which are to be colored, after which aqueous or organic solutions comprising inorganic salts of Fe (II) and/or F...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: GIORGI MICHELE, VIGNALI GRAZIANO, GUIZZARDI FABRIZIO
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The invention relates to a new process for coloring ceramic materials by using aqueous solutions of chromophore ions. In particular, certain types of silica are added to the ceramic mixes which are to be colored, after which aqueous or organic solutions comprising inorganic salts of Fe (II) and/or Fe (III), or organic derivatives of Fe (II) and/or Fe (III) are applied to the surface of the said additive-containing ceramic mixes.