Abstract: The invention relates to articles with a non-stick coating. It relates in particular to an article consisting of a substrate whose surface has -OH groups, and of at least one non-stick polymer layer, said article having also, applied between said substrate and said non-stick polymer layer, a layer which is obtained by making an appropriate bifunctional organosilane react with a polyamic-acid precursor of polyamide-imide and with -OH groups of the substrate surface, then drying and converting said polyamic-acid into a polyamide-imide by heating at an appropriately high temperature. The invention also provides processes and compositions to make non-stick glass and glass-ceramic cookware having clear, vivid, brilliant, attractive colors and stable and durable decorating patterns. Said coloring is achieved by precoating the substrate surface with a polyimide resin containing colored pigment, and preferably, an organosilane.