Think Ahead, Treat it Right
Corona surface treatment allows for effective printing on plastic substrates, as long as converters are ready to prevent snags in the process.
Web tension
Accurate treatment depends on web tension, which, if not controlled properly, can hinder the process. With too much tension, the material can wrinkle or snap; whereas, a lack of tension creates air gaps between the material and the roll, says Opad. In both cases, the material may be unevenly treated, resulting in backside treatment.
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