Formulation of Prediction Model for Optical Film Defects under Transportation by Traction and It's Application to Industrial Problems

卷筒纸处理工艺已被广泛应用于许多产品，如液晶显示器、太阳能和燃料电池等与印刷电子领域相关的柔性薄膜材料。大多数腹板搬运行业在运输过程中经常会遇到起皱和打滑的问题。另一方面，由于缠绕过程是生产的最后阶段，这些纸幅缺陷一直是造成大量材料损失和非常高的生产成本的原因，并且浪费了大量的时间来修复缠绕的辊。卷取辊中起皱和滑移的产生与卷取辊内的应力分布密切相关。在本研究工作中，从理论和实验上阐明了纸幅处理过程中这些纸幅缺陷的产生机理，并提出了防止此类缺陷的有效方法，并进行了实验验证。

The web handling processes have been widely used for a lot of products, such as liquid crystal display monitors, solar and fuel cells, and other flexible thin materials related in the printed electronics fields. Most of web handling industries are often encountered with the problems of wrinkling and slippage in the transportation process. On the other hand, since the winding process is a final stage of the production, these web defects had been a cause of losing a lot of materials and being very high production costs, and wasting a lot of time to restore the wound roll. The generation of wrinkling and slippage in the wound roll is strongly related with the in-roll stress distributions in the wound roll. In this research work, the generation mechanism of these web defects in the web handling process was clarified theoretically and experimentally, and the effective methods to protect such defects were proposed with experimental verifications.