Plastic moulded part and method for the production thereof

A method for producing a plastic molded part comprising the steps of:

• a) providing a first decorative film, which at least partially has an opaque coating;
• b) introducing at least one decorative element of a decoration into the first decorative film by machining using a machining tool wherein, when the at least one decorative element of a decoration is introduced into the first decorative film using the machining tool, the opaque coating is at least partially removed in the area machined using the machining tool and/or the opacity of the opaque coating is reduced in the area machined using the machining tool, and wherein, before the at least one decorative element of a decoration is introduced by machining using the machining tool, the opaque coating has a transparency in the wavelength range visible to humans of less than 50%, and wherein, after the at least one decorative element of a decoration has been introduced into the first decorative film, the area machined using the machining tool and the area not machined using the machining tool have a difference in transparency of at least 5%, and wherein the at least one decorative element of a decoration introduced using the machining tool comprises at least one line having a line thickness of at least 50 μm;
• c) providing a second decorative film, wherein the second decorative film is transparent or translucent at least in some areas and has a transparency of 5% to 100%;
• d) placing the decorative films into an injection mold having a first and second mold half, which together form a cavity for molding the plastic molded part, the first decorative film being placed on a first wall of the cavity and the second decorative film on a second wall of the cavity lying opposite the first wall;
• e) back-injecting the decorative films with a polymer melt, so that the first decorative film forms a first, back surface and the second decorative film forms a second, front surface of the plastic molded part opposite the first surface;
• and
• f) applying at least one backlighting device and/or a touch sensor on the side of the plastic molded part formed by the first decorative film after the back injection.