| abstract |
Provided is a protective film having good adhesiveness with an adhesive and excellent toughness.nn n n According to one aspect of the present invention, a protective film 20 can be provided. The protective film 20 is a substrate-free protective film 20 for a polarizing plate, and includes a core layer 21 containing a hardened resin and a core layer 21 provided thereon. The adhesion promotion layer 22 on one side 21A, the surface 22A of the adhesion promotion layer 22 forms a surface 20A of the protection film 20, the thickness of the protection film 20 is less than 40 μm, and the tensile breaking strength of the protection film 20 is 30 N / mm 2 the above. |