Soft edges

1. These result from low caliper at one edge of the paper web.
— to produce a more evenly wound roll, considerable tension must be applied to stretch the tighter side.
— care need be taken to not break the web.
2. Various winder adjustments can be made to increase tension on slack edge.
— none of the winder adjustments change the caliper that is the cause of the defect.
3. High tension can reduce the slackness and prevent wrinkles.
— increased care must be taken to produce a roll of even hardness across the face.