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|1. (WO2017038955) POLYVINYL ALCOHOL FILM ROLL|
|Applicants:||KURARAY CO., LTD.
|Title:||POLYVINYL ALCOHOL FILM ROLL|
Provided are: a roll obtained by winding a PVA film that is at least 2,000 m long and no more than 45 μm thick, wherein the average gap between adjacent films is no more than 5 μm; and a method for manufacturing a roll obtained by winding a PVA film that is at least 2,000 m long and no more than 45 μm thick, wherein a touch-winding scheme is employed, the pressure between a film roll and a contact roll is 3-30N per meter of axial length of the film roll, and the winding speed is no more than 30 m/min. Thereby provided is a PVA film roll that has excellent external appearance and does not readily become wrinkled or eccentric even when the PVA film is thin and has a high winding length.