Process for printing and/or laminating a metallized polypropylene film and film obtained thereby

The invention relates to a process for the preparation of a printed and/or laminated metallized plastic film comprising the following consecutive steps: a) coextrusion of a plastic film comprising as a skin layer a copolymer based on propylene, containing linear or branched comonomers from 4 to 8 carbon atoms and, optionally, ethylene, said copolymer containing a concentration of extractibles in n-hexane at 50 DEG C for 2 hours lower than 5.5% by weight and, as a core layer of the film, a homopolymer of propylene having a content of extractibles in hexane at 50 DEG C for 2 hours lower than 10% by weight b) surface tratment followed by a vacuum metallization process c) storage of the film for at least one month d) printing and/or lamination of the film.