What causes unwanted backside treatment and what problems can cause it? How can it be prevented?
-side treat is caused by air getting in between the web and the ground roll. This in turn is caused by many things, some of which are: Dirty treater ground rolls, nicks or deterioration of the ground roll dielectric material, out of round rolls, and misaligned treater stations when installed, increase in line speeds where a nip is not present. We have also seen this to be a problem due to static charges with thin gauge films. Keep in mind, when back-side treat occurs most problems are generally do to web handling issues.
