| 摘要 |
PURPOSE: A method for manufacturing a multilayered film is provided to prevent water leakage by improving heat adhesion properties between sheets. CONSTITUTION: A method for manufacturing a multilayered film is as follows. Compositions of A, B, C layers(11,12,13) are prepared. A film of an AB layer(14) is manufactured by molding and laminating the A and B layers using an inflation 2 way method. The C layer is molded using a T-die method. An ABC layer(15) is manufactured by laminating the AB layer on the molded C layer using a heated horizontal laminating roller and cooling the AB and C layers.
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