| 摘要 |
<p>The present invention is a polyvinyl alcohol-type polymer film containing a polyvinyl alcohol-type polymer (A), wherein at least one metal element (B) selected from the group consisting of transition metals and aluminum is additionally contained and the content of the metal element (B) is 0.2 to 50 ppm inclusive relative to the amount of the polyvinyl alcohol-type polymer (A). It is preferred that the metal element (B) is at least one metal element selected from the group consisting of chromium, iron, cobalt, manganese, nickel, titanium, zinc, copper and aluminum. It is also preferred that the metal element (B) includes iron. It is also preferred that the metal element (B) is contained in the form of a metal compound.</p> |
