Plasma made from atmospheric air is highly oxidative. Layers of absorbed molecules, such as oil and water on metallic surfaces, are easily removed with this type of plasma technology. Plastics are oxidized at the surface. This type of treatment to plastics increases the wettability and adhesion of inks and glues by increasing the surface engergy.
CORONA = PLASMA?
A current conducting plasma exists inside the current filament of a corona discharge. Another, secondary plasma exists beside the current filaments. An AD-plasma is free of current filaments. It is potential free.
with current filaments = corona without current filaments = plasma