To provide a biaxially oriented polyamide type mixed resin laminated film roll capable of being smoothly subjected to bag making processing due to lamination in a good yield, low in oxygen permeability, improved in pinhole resistance at a low temperature and capable of efficiently obtaining a package freely from an S-shaped curl.
The biaxially oriented polyamide type mixed resin laminated film is obtained by taking up a polyamide type mixed resin laminated film which is constituted by laminating a resin layer based on a polyamide resin at least on one side of a resin layer based on MXD-6. A first sample cutting part is provided within a 2 m-range from the winding completion of the film while a final cutting part is provided within a 2 m-range from the winding start of the film and, in a case that the sample cutting part is provided at every about 100 m from the first sample cutting part, physical properties such as a boiling shrinkage factor, a refractive index in the thickness direction of the film, etc. are adjusted so as to be a predetermined range of a fluctuation width with respect to all samples cut from the respective cutting parts.
COPYRIGHT: (C)2007,JPO&INPIT
Tadashi Nishi
Naonobu Oda
Katsuhiko Nose
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| JP2003170494A | ||||
| JP7047545A | ||||
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| JP8174663A |
Keiya Inoue
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