| abstract |
The present invention relates to a polyvinyl alcohol polymer film containing a polyvinyl alcohol polymer (A), which comprises at least one metal element (B) selected from the group consisting of a transition metal and aluminum, and the metal element (B ) Is from 0.2 ppm to 50 ppm based on the polyvinyl alcohol polymer (A). The metal element (B) is preferably at least one metal element selected from the group consisting of chromium, iron, cobalt, manganese, nickel, titanium, zinc, copper and aluminum. The metal element (B) preferably contains iron. The metal element (B) is preferably contained as a metal compound. |