Abstract: The present invention relates to a method for producing ceramic gas-separation membranes, which comprises depositing, by means of inkjet printing, water-based inks that form layers of a gas separation membrane. More specifically, the method comprises at least the following steps forming a porous support (i) compatible with a functional separation layer; depositing on the support (i), by means of inkjet printing, at least one functional separation layer (ii) formed by at least two inks, and depositing at least one porous catalytic activation layer (iii) on the functional separation layer (ii); and performing at least one heat treatment, which produces sintering. The functional separation layer (ii) is deposited in a manner to produce a surface with fadings, patterns, or combinations thereof he invention also relates to a gas separation membrane produced using the described method.

Abstract: Inkjet compositions that can be applied to glass and/or ceramic substrates to impart contrast gloss (luster). The inkjet compositions include solvents, additives for dispersion, and inorganic substances, but preferably do not include any color-producing ceramic pigments. The inorganic substances contained in the inkjet compositions are responsible for the effects on the surface of the substrate.

Abstract: Inkjet compositions that can be applied to glass and/or ceramic substrates to impart various effect to the substrate after firing, including: gloss, matt, contrast gloss (luster), specular reflection (metallic appearance), relief and slipperiness. The inkjet compositions include solvents, additives for dispersion, and inorganic substances, but preferably do not include any color-producing ceramic pigments. The inorganic substances contained in the inkjet compositions are the responsible for the above mentioned effects on the surface of the ceramic article. Depending on the type of effect desired, the inorganic substance may be a specific frit, a crystalline oxide, or a combination of frits and crystalline oxides.