Electrostatics is well-known to us in the nature (flashes).
But electrostatics is a branch of automation technology, as well. It is used specifically for the unloading, loading or cleaning of single products. In advance a basis must be established by measuring the electrostatic charge.
Unloading is necessary in areas where arcing might cause an explosion but also to connect multilayer materials which have charged up electrostatically unbridled through friction. Without unloading them beforehand, these materials would repel each other and could not be connected properly.
Actually, this effect can be required with multilayer materials if they are loaded pointedly with unequal polarity. The unequally loaded polarity causes attraction (bonding) of two materials and does not leave any marks. The loading can either be directly unloaded after a certain operational step or it loses its efficiency independently after some time.
Different materials have a tendency to charge up electrostatically. These loaded materials attract dust particles out of the air and contaminate. As a result losses of quality and problems in production processes may emerge. Material surfaces are neutralised with ionisation electrodes and the unloaded particles are pressed into the exhaust dust with the help of rotary nozzles. There they are completely abolished.