초록 ▼

The invention relates to a coated system which has a chemically and mechanically very stable surface coating of high aesthetic attraction which has a specular and optionally iridescent color and/or a body color on a metal, ceramic or quartz glass substrate provided with an enamel or glaze coating, t

The invention relates to a coated system which has a chemically and mechanically very stable surface coating of high aesthetic attraction which has a specular and optionally iridescent color and/or a body color on a metal, ceramic or quartz glass substrate provided with an enamel or glaze coating, the surface coating being obtainable by single or repeated application of aqueous metal oxide sols, by subsequently drying and optionally igniting the metal oxide sol coating at each application step, the metal oxide sols having a mean particle size of between 5 and 200 nm, ignition being carried out at least once after completion of the final application step and at temperatures higher than 700°C. and below the softening point of the substrate, the metal oxide coating on the glaze or enamel coating having, after ignition, a refractive index at least 0.5 higher than the refractive index of the enamel or glaze coating, and the total thickness of the ignited metal oxide coatings being less than 500 nm.

대표청구항 ▼

A process for the production of a coated system having a chemically and mechanically very stable surface coating of high aesthetic attraction and a specular and optionally iridescent color and/or body color on a metal, ceramic or quartz glass substrate having an enamel or glaze coating comprising th

A process for the production of a coated system having a chemically and mechanically very stable surface coating of high aesthetic attraction and a specular and optionally iridescent color and/or body color on a metal, ceramic or quartz glass substrate having an enamel or glaze coating comprising the steps of: a) applying at least one aqueous metal oxide sol to an enamel or glaze coating on a metal, ceramic or quartz substrate; b) subsequently drying and optionally igniting the metal oxide coating at each application step; provided that the ignition is carried out at least once after the completion of the final application step at a temperature higher than 700°C. and below the softening point of the substrate; wherein the metal oxide sol(s) have a mean particle size of between 5 and 200 nm; the metal oxide coating on the glaze or enamel coating after ignition has a refractive index of at least 0.5 higher than the refractive index of the enamel or glaze coating; and the total coating thickness of the ignited metal oxide coating is less than 500 nm.