| 摘要 |
PROBLEM TO BE SOLVED: To provide a polyamide mixed resin laminated film roll capable of being smoothly subjected to bag making process in a good yield, extremely enhanced in gas barrier properties and having good pinhole resistance at a low temperature. SOLUTION: A film roll is formed by taking up a film which is formed by laminating a vinylidene chloride copolymer resin layer on the surface of a polyamide mixed resin laminated film obtained by laminating a resin layer based on a polyamide resin on at least one side of a resin layer based on MXD-6. A first sample cutting-out part is provided within 2 meters from the winding end of the film while a final cutting-out part is provided within 2 meters from the winding start of the film. In a case that sample cutting-out parts are provided at every about 100 meters from the first sample cutting-out part, all of samples cut out from the respective cutting-out parts are adjusted so that a boiling water shrinkage factor or the physical properties such as a refractive index, etc. in a thickness direction become the range of fluctuation of a predetermined range. COPYRIGHT: (C)2008,JPO&INPIT
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