Wrinkling and Flatness may be the number one cause of waste, delay and customer complaint in our industries. Also termed creases, folds and buckles, they often damage the web, resulting in unsaleable product. We will also introduce bagginess and curl which are also common flatness issues in paper. This course will provide understanding of wrinkles, diagnostic tools and a selection of solutions.

It will cover:

• Why do wrinkles occur?
• How do you diagnose the distinct types?
• What factors influence each type of wrinkle?
• How can wrinkles be quantified and predicted?
• What steps can you take to eliminate them?

Dr. Roisum is a well-known authority in the area of web handling and converting. He has authored nine books that include Winding, Rollers and Web-Handling with his most recent being the Web Machine Buying Guide.

Dave received his BS in Mechanical Engineering and MS in Engineering Mechanics from the University of Wisconsin at Madison, and his Ph.D. from the Web Handling Research Center where he later became an Industrial Advisory Board member. Dave has worked for the Beloit Corporation as a designer of high-speed winding machinery and later as a manager of research and for the Web Handling Research Center and finally for Kimberly-Clark as an internal converting expert serving all business units. For the past two decades he has been a principal of Finishing Technologies Inc., providing consulting services to more than 400 clients who convert or manufacture: paper, film, foil, nonwovens and many other materials. He has accumulated much practical experience working in nearly 1,000 plants over the course of more than three decades. Dave has shared his experience with nearly 5,000 students and is noted for his skill in translating highly technical information into easy-to-understand practical principles.