Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : March 14, 2016 - March 15, 2016
Plastic film is produced by Roll-to-Roll system. In this system, Plastic film could be stored in a small space by wound into a roll. However, in roll defect causes big economic loss. Especially gage band still remains an open research problem. Furthermore, in recent years, plastic film is necessary to re-consider the wrinkling and the slippage because it tends to thin. These problems depend on the stress state of the winding roll. Therefore, it is necessary to predict the stress state to prevent defect occurring wound roll. In addition, internal stress of wound roll will be changed due to viscoelastic properties over time. In this study, optimization of winding condition and internal stress analysis of wound roll considering viscoelastic property and web thickness distribution is presented and experimentally verified at a constant tension. As a result, the predicted values are in agreement with the measured values.
