| abstract |
This poly(vinyl alcohol) (PVA) film contains PVA (A), a non-ionic surfactant (B) and an anionic surfactant (C), and is characterized in that the non-ionic surfactant (B) is a secondary amide type aliphatic alkanolamide represented by formula (I), the content of the non-ionic surfactant (B) is 0.01-0.12 parts by mass relative to 100 parts by mass of the PVA (A), and the content of the anionic surfactant (C) in the film is 0.01-0.24 parts by mass relative to 100 parts by mass of the PVA (A). This PVA film contains few surfactant aggregates, has a low haze value, has good film surface quality, has a high drawing ratio and exhibits good polarization performance. [In formula (I), R is an alkyl group having 8-18 carbon atoms, and the number (n) of polyoxyethylene chains is 2-10.] |