What is Corona Treatment

Corona Treatment is a surface altertion technique that uses a low temperature corona treatment plasma to impart changes in the properties of a surface. The corona plasm is made by the application of high voltage to an electrode that has a sharp tip. The plasm forms at the tip. A linear array of electrodes is often used to create a curtain of corona plasm. Materials like plastics, woven, paper and film could be passed through the corona plasm curtain to change the surface energy of the material. All materials have an inherent surface energy. Surface treatment systems are available for virtually any surface format including dimensional objects, sheets and roll goods that are dealed with in a web format. 

Corona treatment is a popularly used surface treatment measure in the plastic film, extrusion, and converting industries.