For simple understanding, plasma is matter that exists in the form of ions and electrons. Precisely, it is an electrically charged gas with free moving electrons in both negative and positive state. Plasma consists of electrons, molecules or neutral gas atoms, positive ions, UV light along with gas molecules and atoms. It produces large amount of internal energy.
Plasma treatment is initiated when all these molecules, ions and atoms come together and interact with a particular surface. The effects of plasma treatment upon any surface can precisely be specified or tuned by selecting a gas mixture, pressure and power. Plasma treatment on surfaces can be an effective pre-treatment of surface activation before any gluing, printing or lacquering.