Abstract
Webs (such as paper, plastic film and meal sheets etc) are wound onto rolls for distribution, processing, and operations. In the winding process, tension is one of the most important parameter for preventing the wound roll defects such as the star defect's and slippage which are detrimental to roll quality. In production field, it well known experimentally that linearly-decreased winding tension has the affects of preventing the wound roll defects. However, this tension pattern is not necessarily adapted to various types of conditions. On the other hand, Hashimoto present the optimization method of winding tension which is expressed by preventing the wound roll defects. But, technique for the measurement of In-roll stress has not been established. The study will evaluate the measuring method for interior stress of roll under winding.
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