Method for the production of a polycarbonate laminate

A method for making a structure with at least a first polymer layer and a second polymer layer, each made from a polycarbonate polymer containing repeating units derived from bisphenol A, wherein on the first polymer layer an ink jet printing layer is arranged, comprising the following steps:

• a) ink jet printing a preparation, the preparation comprising (1) a binding agent comprising 0.1 to 20 wt % of the polycarbonate polymer with a polycarbonate derivative based on a geminally disubstituted dihydroxydiphenyl cycloalkane, wherein the polycarbonate derivative is based on 4,4′-(3,3,5-trimethylcyclohexane-1,1-diyl)diphenol and has a softening temperature of 185° C. or less, and wherein the polycarbonate polymer in the ink jet printing preparation is different from the polycarbonate polymer in the first and second polymer layer;
• (2) 30 to 99.9 wt % of a solvent or of a mixture of solvents, (3) 0 to 10 wt %, referred to dry mass, of a dye or of a mixture of dyes, (4) 0 to 10 wt % of a functional material or of a mixture of functional materials, and (5) 0 to 30 wt % of additive and/or auxiliary substances, or of a mixture of such substances, wherein the relative amounts of the components (1) to (5) always totals 100 wt %, as an ink jet printing dye directly on at least one partial region of the first polymer layer,
• b) optionally, drying the ink jet printing layer,
• c) after step a) or step b), placing the second polymer layer on the first polymer layer, covering the ink jet printing layer, and laminating the first polymer layer and the second polymer layer with each other under pressure, at a temperature of 150° C. to 180° C. 9 for a defined time.