| 摘要 |
<p>A polyester film for mold release film that realizes implementation of precision inspection in the inspection of polarizing plate according to the cross-Nicol method, inhibiting the transfer of polyester oligomer to pressure sensitive adhesive layer. There is provided a polyester film for mold release film characterized in that at least one surface of the polyester film has a coat layer of 50 or less defects/m2, the amount of polyester oligomer extracted from the coat layer after heating at 150°C for 10 min being 0.3 mg/m2 or less, and that the polyester film has a slope of orientation main axis (orientation angle) of 8° or less. Further, there are provided a mold release film for polarizing plate separator characterized in that a mold release layer is superimposed on the polyester film and a polyester film for polarizing plate protection film comprised of the polyester film.</p> |
