Abstract
This paper describes the theoretical modeling for the prediction of slippage onset condition between web and steel roller with experimental verifications. For the first step of modeling, the occurrence of slippage is observed far the cases of uncoated paper (newsprint) and coated paper and optical films and the relation between the slip ratio and roller velocity is measured by changing the web tension. Theoretical model is formulated based on the observed results, and the predicted results by the model are compared with the experimental results. From the results obtained, the applicability of the model is confirmed experimentally.