| 摘要 |
PROBLEM TO BE SOLVED: To provide a laminate film capable of preventing deterioration of a barrier property even if bonded by a heat sealing process, in manufacturing an infusion bag made of a gas barrier film.SOLUTION: A laminate film 10 includes, on a base material film 1, a gas barrier layer 2, an adhesion layer 3, and a resin film 4 sequentially laminated. The gas barrier layer 2 has a configuration in which a first organic layer 2a, an inorganic layer 2b, and a second organic layer 2c are sequentially laminated. The resin film 4 includes a resin selected from one or more of a polyethylene resin and a polypropylene resin. The thermal shrinkage difference between the first organic layer 2a and a second organic layer 2c composing the gas barrier layer 2 is less than 5%, at a melting point temperature of the resin film 4.SELECTED DRAWING: Figure 1 |
