APPARATUS AND METHOD FOR MANUFACTURING MICROPOROUS PLASTIC FILM ROLL
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United States of America Patent
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Issued Date -
Dec 25, 2014
app pub date -
Dec 27, 2012
filing date -
Dec 27, 2011
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Abstract
In an apparatus for manufacturing a microporous plastic film roll by conveying a microporous plastic film by conveying rollers and then winding the microporous plastic film in a roll shape while being brought close to a near roller or being brought into contact with a touch roller, a part of the touch roller to be in contact with the plastic film has a Vickers hardness of 100 to 2,000, and the microporous plastic film is conveyed so that a side of the microporous plastic film opposite the side being in contact with the conveying rollers is in a noncontact state in a range being in contact with the conveying rollers.
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