| 摘要 |
Production of thermoplastic synthetic resin laminated material having a large number of independent air cells, the method comprising steps of extruding two sheets of filmy molten resin, engaging one of the sheets of filmy molten resin onto an endless molding belt, which has a large number of independent holes, and before the filmy molten resin sheets harden, applying a suction to the one filmy molten resin sheet corresponding to the holes of the endless molding belt, and bonding the other sheet of filmy molten resin on the flat side of the one of the filmy molten resin sheets, the product may be used for packing or buffering of articles.
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