Laminated film, method for production thereof, and bag and package using the laminated film

摘要

A laminated film includes an outer-layer-film (20), a water-soluble film (6), and an intermediate layer (5) interposed between the outer-layer-film (20) and the water-soluble film (6). The intermediate layer (5) contains high-pressure polyethylene oxidized to a prescribed degree on a surface thereof contiguous to the water-soluble film (6). The outer-layer-film (20) and the intermediate layer (5) adhere fast to each other. The intermediate layer (5) and the water-soluble film (6) directly contact each other and adhere so weakly to each other as to be peel able. The water-soluble film (6) includes a water-soluble substrative film (6a) and water-soluble anchor coating agent (6b) distributed on a surface of the water-soluble substrative film (6a) contiguous to said intermediate layer (5).