FMF-12 IMPROVEMENT OF SLIPPAGE AND WRINKLING OF TRANSPORTING WEBS USING MICRO-GROOVED ROLLERS(Flexible Media Feeding and Handling Machines IV,Technical Program of Oral Presentations)

This study described the method of improvement of slippage between webs and rollers. At first, the concept of micro-grooved roller is introduced, and then theoretical model for estimating the slippage onset velocity under the transportation of webs by the micro-grooved roller is formulated. The predicted results are compared with the experimental data to verify the applicability of the prediction model of slippage. Moreover, web-wrinkling condition, which is the trade-off relation with slippage condition, is also considered in the modeling. From the theoretical and experimental results, it is confirmed that the micro-grooved roller is very effective to improve the slippage of webs under transportation.