Why All Films Do Not Treat the Same‐The Signature Relationship Between Your Film and Corona Treaters

摘要

How well do you understand the relationship between your films and your corona treater? A treatment level of 2.0 watt density yields very different results on PET compared to Polypropylene. And, a nominal change in watt density can produce unexpected results. This paper looks at the relationship between various films and watt densities. Recognizing that each film has it own signature relationship with a corona treater will help converters control surface energy and improve adhesion.