Thumbnail Image

Principles of web slitting

Pfeiffer, J. D.
The slitting arrangements used in the paper, plastic film, and metal industries have evolved into machines that use a variety of principles to sever the webs longitudinally. This presentation looks at a variety of ways for accomplishing this task, pointing out problems that are sometimes generated by these solutions. Such difficulties range from the tendencies of the cutting members to become dull, to the production of undesired dust and slivers, or the failure to maintain accurately trimmed widths. Wherever possible the reasons for the detects are explained with recommendations for avoiding further difficulty.