How a Corona Treatment System Works

Corona treatment utilizes electrostatic discharge to improve the adhesion of coatings to plastic films, resolving adhesion issues associated with printing on polypropylene or polyethylene films. Additionally, moisture on the film surface and high-solids radiation-curable inks increase the surface energy of films such as polyvinyl chloride and polyester. Common pre-treatments for films include combustion, corona treatment, or coating to enhance adhesion.