Baking tray or baking grid having a non-stick and/or non-wetting coating, cooking appliance comprising such a baking tray or baking grid and method for manufacturing a baking tray or baking grid

Abstract

The present invention relates to a baking tray () or baking grid, in particular a baking tray () for a cooking appliance (), having a non-stick and/or non-wetting coating () obtainable by a process characterised by the following steps, a) providing a baking tray () or baking grid having a surface, in particular having an upper surface () and a bottom surface (), b) preferably, pretreating of the surface () of the baking tray () or baking grid at least partially, in particular completely, for providing a surface having a roughness being suitable for applying a non-stick and/or non-wetting coating () by mechanical treatment, physical treatment or chemical treatment, in particular by sandblasting and/or laser treatment and/or a surface activation treatment, particularly a plasma treatment, and/or an enameling process to form a ground layer (), c) applying the non-stick and/or non-wetting coating () to the pretreated surface () of the baking tray () or baking grid or a surface () of the ground layer (), wherein the non-stick and/or non-wetting coating () comprises at least one layer () that is obtained by a sol-gel process from a first composition comprising a silica sol and a silane. The invention further relates to a cooking appliance (), in particular a domestic oven comprising such a baking tray () or baking grid and a method for manufacturing such a baking tray () or baking grid.