Abstract: Packing process for palletized loads, positioned on a revolving or fixed platform of a packing structure providing to the helical wrapping about the load of a plastic film and according to two spirals, each of said spirals being partly superposed; said process consists in utilizing two separate and independent coils of plastic film, in submitting them at the same time to a vertical translation in both directions and parallel to the vertical axis of the load, whereby the start of the wrapping by a coil is alternate to that of the other coil, starting from down upwards or from up downwards and with the same translation speed, so as to obtain a complete wrapping, constituted by two spiral helixes separate and directed towards opposite directions, in substantially half the time with respect to the time required by the present wrapping systems.