| 摘要 |
PROBLEM TO BE SOLVED: To provide a deep draw package for high-temperature sterilization processing in which a flange part of the deep draw package is not curled after the high-temperature sterilization processing, and a good transparency can be kept even after the high-temperature sterilization processing. SOLUTION: In the deep draw package, a bottom material 20 and a lid material 30 are respectively formed of a laminated film composed of at least an outer layer, an intermediate layer and an inner layer. The bottom material 20 is formed of the laminated film composed of the outer layer comprising at least one layer of an undrawn polypropylene resin layer, the intermediate layer comprising at least one layer of a polyamide resin layer and at least one layer of a saponified resin layer of a heat-resistant ethylene-vinyl acetate copolymer (htEVOH), and the inner layer comprising a heat-sealable resin layer. The lid material 30 is formed of the outer layer comprising at least one layer of an undrawn polypropylene resin layer, the intermediate layer comprising at least one layer of a biaxially drawn polyamide resin layer, and the inner layer comprising at least one layer of a heat-sealable resin layer. COPYRIGHT: (C)2006,JPO&NCIPI
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