Abstract: A method for producing RFID antennas by vacuum deposition of an electrically conductive material on a web material, wherein at least a first and a second deposition of electrically conductive material are carried out in subsequent steps according to a pattern corresponding to the shape of the antennas.

Abstract: A system for vacuum deposition of a coating on a web material (N), includes: a feed path of the web material in a vacuum environment; along the feed path, a process roller (19) around which the web material is guided; associated with the process roller, at least one vaporization source (31) of a material to form the coating; upstream of this source, along the feed path of the web material, an applicator unit (51) to apply a masking agent to the web material according to a pre-established pattern. The applicator unit in turn comprises a printing cylinder (53), cooperating with a distributor cylinder (55) of the masking agent, and a source (57) of masking agent. The applicator unit (51) includes at the ends thereof, an adjustment device (73) separate from each other to adjust the position of the applicator unit (51) with respect to the process roller (19).

Abstract: The system for vacuum deposition comprises: an evacuable chamber; in said chamber, a feed path of the web material in a vacuum environment; along the feed path, a process roller (19) around which said web material is guided; associated with the process roller, at least one vaporization source (13) of at least one material to form said coating. Upstream of the source there is disposed an applicator unit (51) for applying a liquid product to the web material according to a pre-established pattern. The applicator unit comprises a printing cylinder (53), cooperating with a distributor cylinder (55), and a source (57) of said liquid product. The printing cylinder (53) comprises at least one substantially continuous circumferential projection, which generates a continuous contact with the web material fed around the process roller (19) or with said process roller during treatment of the web material.

Abstract: The system for vacuum deposition of a coating on a web material (N), comprises: a feed path of the web material in a vacuum environment; along the feed path, a process roller (19) around which said web material is guided; associated with the process roller, at least one vaporization source (31) of a material to form the coating; upstream of this source, along the feed path of the web material, an applicator unit (51) to apply a masking agent to the web material according to a pre-established pattern. The applicator unit in turn comprises a printing cylinder (53), cooperating with a distributor cylinder (55) of said masking agent, and a source (57) of masking agent. The applicator unit (51) comprises at the ends thereof, adjustment means (73) separate from each other to adjust the position of the applicator unit (51) with respect to the process roller (19).