The process is based in digital functionalization by airless fine spraying. It is a one phase jet spraying with valves in the nozzle. The agent is set under pressure and if the valve opened the nozzle the jet begins to spray. The new part of the system is the fast operating valve. Because of the possible high switching frequency the jet has not to be moved in a continuous line, which is a significant advantage. The CAM system has not to find a fitting spline, which covers the whole area with the lowest possible switching events. The fast switching gives a new flexibility, so that several jets can work together at the same area. A second advantage of this system is the one phase spraying. The agent forms the droplets without the help of pressured air. In order of the absence of dispersing air the problem of change of the composition of droplets is solved and the problem of dilution of ambient air is solved too.
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