| 摘要 |
PROBLEM TO BE SOLVED: To provide a biaxially oriented vapor deposition polyamide resin laminated film roll having extremely high gas barrier properties, capable of being smoothly subjected to bag making processing by virtue of lamination in a good yield and capable of efficiently obtaining a package free from an S-shaped curl. SOLUTION: In the biaxially oriented polyamide resin laminated film, a vinyl chloride copolymer resin layer is laminated, a first sample cutting part is provided within a 2m range from the winding completion of a film while a final cutting part is provided within a 2m range from the winding start of the film and, in a case that sample cutting parts are provided at every about 100 m from the first sample cutting part, physical properties such as a boiling water shrinkage factor, surface roughness, a refractive index in a thickness direction, oxygen permeability etc., are adjusted with respect to all samples cut from the respective cutting parts so as to fall within a predetermined range of fluctuation width. COPYRIGHT: (C)2007,JPO&INPIT |
