The invention relates to a Co-extruded, multilayer and biaxially-oriented polypropylene film, which comprises of at least one first sealable covering layer and at least one vacuolate layer, having a thickness of at least 5 μm, is further treated by laminating, pasting, printing, varnishing and/or coating; the result registered as follows: after drying or hardening during further treatments using electron-beam irradiation, the vacuolate layer has a thickness of at least 5 μm. Hot tack is not damaged by electron-beam processing.