POLYAMIDE RESIN LAMINATE ROLL AND PROCESS FOR PRODUCING THE SAME

摘要

[PROBLEMS] To provide a biaxially oriented polyamide resin laminate film roll that permits performing of smooth bag-making processing by laminating with high yield, enabling efficiently obtaining of a packaged matter free from S-shaped curling. [MEANS FOR SOLVING PROBLEMS] There is provided a polyamide resin laminate film roll wherein in the event of disposing of a first specimen cutout portion within 2 m from film winding end and disposing of a final specimen cutout portion within 2 m from film winding startand further in the event of disposing specimen cutout portions every about 100 meters from the first specimen cutout portion, with respect to all the specimens cut out from the cutout portions, properties, such as boiling water shrinkage factor, surface roughness and refractive index along thickness direction, are regulated so as to fall within a fluctuation band of given range.