BIAXIALLY ORIENTED POLYAMIDE-BASED RESIN FILM AND METHOD FOR PRODUCTION THEREOF

摘要

[Problem] Provision of a biaxially oriented polyamide resin film superior in transparency and slipperiness under high humidity, which is free of curling during boil processing and misalignment due to moisture absorption. [Solving means] The biaxially oriented polyamide resin film of the present invention is formed by drawing in two steps, in the longitudinal direction, a non-oriented sheet made from a polyamide resin containing fine particles for forming a surface protrusion, and drawing the film in the transverse direction by a sequential biaxial drawing method, and shows a misalignment due to moisture absorption of 2.0 - 4.0 mm and a boil distortion of 2 - 3%.