Film body, method for insert molding a film body and back injection tool to

A method for insert molding a layer of electrode (1) for manufacturing a touch sensor, wherein the layer electrode (1) has at least one not to be back-injected region (7), the following method steps comprising: - covering the region (7) of the layer electrode (1), which can not be back-injected, with a sacrificial film (3, 31, 32) - introducing the film electrode (1) and the sacrificial film (3, 31, 32) in a back-injection tool (2) - back-molding the layer electrode (1) and the sacrificial film (3, 31, 32) - formation of the touch sensor of the produced back-injection body (10).