abstract |
(57) [Problem] To provide a wide PVA film which is hardly curled at the time of stretching and can be stretched uniformly and a method for producing the same, and a polarizing film produced by using the same. SOLUTION: This is a polyvinyl alcohol polymer film having a film width of 2 m or more, and the polyvinyl alcohol polymer film has a curl angle of 180 ° or less when immersed in water at 30 ° C. for 5 minutes. |