METHOD FOR PRODUCING FILM AND METHOD FOR WINDING OFF FILM
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United States of America Patent
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Issued Date -
Jun 22, 2017
app pub date -
Dec 21, 2016
filing date -
Dec 22, 2015
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Abstract
The separator production method in accordance with an embodiment of the present invention includes a coated article winding off step of winding off, from a core, a separator original sheet which has been taken up in a coated article taking up step of winding the separator original sheet on an outer peripheral surface of the core while oscillating the core in a rotation axis direction, and the core is oscillated in the rotation axis direction in the coated article winding off step.
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