Described is a process for the production of a layered body S2 comprising: i. provision of a layered body S1 comprising a substrate and an electrically conductive layer which is applied to the substrate and comprises an electrically conductive polymer P1; ii. partial covering of a part of the electrically conductive layer with a covering layer D, comprising a polymer P2 contained therein, from a covering phase to obtain at least one covered region Dd and at least one non-covered region Du of the electrically conductive layer; iii. reduction of the electrical conductivity of the electrically conductive layer in at least a part of the at least one non-covered region Du compared with the electrical conductivity of the electrically conductive layer in the at least one covered region Dd; iv. at least partial removal of the covering layer D by an alkaline aqueous treatment.