| abstract |
【Task】 To provide a biaxially oriented polypropylene film that exhibits excellent high voltage resistance and safety even in a high temperature atmosphere of 80 ° C. or higher. SOLUTION: A polypropylene film composed of a polypropylene resin mainly composed of propylene, wherein at least one surface of the film surface has a base layer composed of satin-like irregularities, and the surface has a 10-point average roughness (Rz). Is a biaxially oriented polypropylene film having a surface glossiness of 90 to 135%. [Selection] Figure 1 |