Blame the Corona Treater - The Truth About Watt Density, Dyne Levels & Adhesion, 2014 PLACE Conference

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When inks, coatings, adhesives and laminations don’t bond with substrates, converters are quick to blame the corona treater. And why shouldn’t they? Corona treaters are responsible for adhesion, right? Well, not exactly.

When you consider all the variables that need to work together for successful adhesion, it can be mind boggling, so rather than take a PHD approach to adhesion; we’re going to take a very practical look at this sometimes frustrating and perplexing topic.

This article will look into the relationship between the corona treater and adhesion. And that means we’ll dive into topics such as: what a corona treater really does, how to measure applied treatment (watt density), ways to measure effectiveness of treatment (dyne levels), effects of small changes in material and processes, and how all of these items play a role in providing you with successful adhesion.