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.
“The decision to drive the treater roll,” he continues, “hinges on a number of primary parameters which can be influenced by still more secondary considerations. The simple rule of thumb on this question is any web (substrate), whether film or foil, that is one mil or less and will be run at 500 fpm or more should be treated on a driven roll.” Stobbe points out that converters should also be aware of baggy edges or a baggy center to ensure the material is consistent and free of defects. These conditions can contribute to wrinkles or trapped air between the material and backup roll.
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