Browsing by Author "2c9b6542-7d04-4a73-85ff-334405eba288"
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Development of intelligent plastic film winder "Windstar"
Hashimoto, Hiromu; Tominaga, Yasumasa; Morikawa, Ryo (Oklahoma State University, 2015-06)Flexible continuous plastic films are used to produce various products, including optical films and packaging materials, because plastic film is suited to use in mass production manufacturing processes. Generally, the web ... -
Friction characteristics between thin plastic film and steel roller
Hashimoto, Hiromu; Sunami, Yuta (Oklahoma State University, 2015-06)To establish the Roll-to-Roll Printed Electronics, which can be applied to manufacture the high functional thin film based devices, it is needed to combine the Roll-to- Roll transportation system and coating technology ... -
Improvement of slippage and wrinkling of transporting webs using micro-grooved rollers
Hashimoto, Hiromu; Hikita, Shinji (Oklahoma State University, 2009-06)We describe an entirely new method of improving the slippage between web and roller. First, the concept of a micro-grooved roller is introduced, and then a theoretical model for estimating the slip onset velocity under the ... -
Optimization of wind-up tension of webs preventing wrinkles and slippage with experimental verification
Hashimoto, Hiromu (Oklahoma State University, 2009-06)This paper describes the optimization method of wind-up tension to prevent wound roll defects, mainly star defect (wrinkling) and telescope (slippage), based on the optimum design technique. Hakiel's nonlinear model with ... -
Optimization of winding conditions for preventing roll defects caused by thermal-viscoelastic property and experimental verification
Hashimoto, Hiromu (Oklahoma State University, 2015-06)Plastic films are used in many high functional products. They are produced on roll to roll system. The films are continuously wound in the shape of roll using this system. The wound roll is shipped to the store and ...