Static control and web cleaning are critical to high-quality package printing.

By Tom Polischuk

A CCR system relies on a polymer-covered idler roll running in contact with the customers’ substrates, says Sweet. “This system has proven to be the most effective way to remove contamination, if used properly.”

With CCRs, Patterson cautions that operators need to inspect the adhesive layer on the contact roll several times during every shift “and more frequently if excessive slitter dust is present on the adhesive roll. Peeling away the dirty layer to expose a new layer of the tacky adhesive is what is required in most contact cleaning systems,” he says.