A surface protective film for a prism sheet, and a production method thereof, and a prism sheet to which it is attached

【Task】 The present invention aims to deployment force from roll is small and a release layer attached to the adhesive layer to provide a surface protective film for hard prism sheet to reduce the adhesive strength. A Forming raw material A containing saturated fatty acid bisamide and a polyolefin resin, and molding the raw material B containing styrene elastomer It is prepared by co-extruding, (A) composed mainly of saturated fatty bisamides, thickness of 1~100nm release layer, (B) a polyolefin resin layer as a substrate layer, and (C) styrene elastomer layer is a surface protective film for a prism sheet which is laminated as an adhesive layer. .BACKGROUND