Method for producing a decorative mineral composite body

A method for producing a decorated mineral composite body using at least one multilayer film, wherein the method comprises the following steps:

• a) providing at least one forming element with at least one outer surface and at least one inner surface,
• b) applying a flowable or plastically deformable, mineral construction material mixture, which comprises water and at least one mineral binding agent, to the at least one inner surface of the forming element,
• c) at least partially solidifying the mineral construction material mixture to obtain a dimensionally stable, mineral green body, and
• d) at least partially hardening the mineral construction material mixture,
• wherein the multilayer film has a carrier ply and a transfer ply, which contains at least one decorative element, arranged on the carrier ply,
• wherein the transfer ply has at least one polymer-containing primer layer on the side facing away from the carrier ply, and
• wherein:
• I), before step b), the at least one multilayer film is arranged with the side of the carrier ply facing away from the at least one polymer-containing primer layer on the at least one inner surface of the provided forming element, and, in step b), the at least one polymer-containing primer layer is brought into contact, at least partially, with the flowable or plastically deformable, mineral construction material mixture, wherein, in step c), a decorated, dimensionally stable, mineral green body is obtained,
• and/or
• II), in and/or after step c), the at least one multilayer film is arranged with the at least one polymer-containing primer layer at least partially on the dimensionally stable, mineral green body, wherein a decorated, dimensionally stable, mineral green body is obtained, and
• wherein, in alternatives I) and II), a decorated mineral composite body is obtained after step,
• wherein the at least one polymer-containing primer layer comprises at least one polymer which has at least one dissociable functional group,
• and wherein the at least one dissociable functional group, in each case independently of one another, is an amino group and/or a hydroxyl group and/or a free acid group, and/or a blocked acid group, and/or a combination thereof.