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Corona treating: Why all films do not treat the same

from PFFC

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 polyethylene terephthalate compared to polypropylene, and a nominal change in watt density can produce unexpected results. This article looks at the relationship between various films and watt densities. Recognizing that each film has its own signature relationship with a corona treater will help converters control surface energy and improve adhesion. more


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