Dealing with Shear Slitting Defect Complexity

Dealing with Shear Slitting Defect Complexity

David Rumson
Slitting Educator/Consultant

There are many, many slitting or winding web and roll defects producing unacceptable roll quality. Compounding the defect issue is that there are many, many multiple causes for the same defect. TAPPI's The Ultimate Roll & Web Defect Troubleshooting Guide identifies 254 roll and web defects. Eighteen of these are slitting or trim related. Among the eighteen ... six ... yes six ... can only be caused by impaired slitting components and/or incorrect knife set-up procedures. This presentation will discuss nine potential causes and remedies for one of these six defects; a Fuzzy Edge". Who said Shear Slitting was complicated?