| abstract |
A laminated film which comprises a pair of coextruded multilayer inflation film layers disposed symmetrically and joined by blocking, wherein the inner layers are joined by blocking are composed of a resin having a Vicat softening point of lower than 120° C., and a method of manufacturing the above film which comprises extruding a coextruded multilayer inflation 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° 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. |