| abstract |
The present invention is a PVA film having a thickness of 50 µm or less, wherein: the amount W MD30 of elongation, in a length direction, of a portion of a sample of the PVA film, said portion having a pre-immersion length of 250 mm in the length direction, when immersed for 30 seconds in 30 °C water, is 35-60 mm, inclusive; and the amount W TD300 of elongation, in a width direction, of a portion of a sample of the PVA film, said portion having a pre-immersion length of 250 mm in the width direction, when immersed for 300 seconds in 30 °C water, is 53-65 mm, inclusive. |