| 摘要 |
<p>A laminated film which comprises a pair of coextruded multilayer inflation film layers (3,3) disposed symmetrically and joined by blocking, and the inner layers (1,1) joined by the blocking is composed of a resin having a Vicat softening point of lower than 120 DEG C, and a method of manufacturing the above film which comprises extruding a coextruded multilayer inflaiton film from an extruder at a temperature of the molten resin forming the inner layer being higher than the Vicat softening point of the resin by more than 50 DEG C, and joining the inner layer of the inflation film by blocking. A laminated film laminated by blocking can stably be produced, and the laminated film is excellent in physical strength and bag rupture strength.</p> |
