Method of manufacturing a trim element with double decoration

A manufacturing method for a trim element, comprising the following steps:

• supplying a mold comprising a first mold part and a second mold part, wherein the first mold part has a first molding surface, the second mold part has a second molding surface, the mold being movable between at least an open configuration and a closed configuration, the first molding surface and the second molding surface together delimiting at least partially one molding cavity in the closed configuration of the mold, wherein the mold is in the open configuration,
• positioning a first decoration against the first molding surface, the first decoration being preformed,
• positioning a wedge in contact with at least one edge of the first decoration, the wedge being suitable for holding, at least partially, the first decoration against the first molding surface of the first mold part,
• after the positioning of the first decoration and the positioning of the wedge, positioning a second decoration, the second decoration being placed in contact with the wedge holding the first decoration, wherein the second decoration is flexible,
• closing the mold in the closed configuration, wherein the second decoration is arranged between the first mold part and the second mold part after the closing of the mold, and
• after the closing of the mold, back-injecting a substrate into the molding cavity, wherein the second decoration is pushed against the first decoration by the substrate during back-injection of the substrate.