JP2008195450A5 - - Google Patents

Claims (3)

Among the four surfaces constituting the upper edge opening of the bottomed rectangular tube-shaped container main body formed by laminating the heat-fusible sheet on the inner surface side of the base, the vertical lengths of the two opposing bent surfaces are different from each other. In the liquid pack container precursor that is shorter than the vertical length of the opposing roof constituting surface, a part of the heat-fusible sheet at the upper edge of at least one of the two folded surfaces and / or the folded surface roof type liquid pack container precursor, characterized in that the removal of the portion of the heat-fusible sheet roof construction surface corresponding to the upper edge of. The roof-shaped liquid pack container precursor according to claim 1 or 2, wherein the removed or denatured portion of the heat-fusible sheet is a part of the vertically long part of the fusion part of the bent surface . Of the four surfaces constituting the upper edge opening of the bottomed rectangular tube-shaped container body formed by laminating a heat-fusible sheet on the inner surface side of the substrate, the vertical lengths of the two opposing bent surfaces are different from each other. A liquid pack formed so as to be shorter than the upper and lower lengths of the opposing roof constituent surfaces, the two bent surfaces are folded, and the other opposing roof constituent surfaces are bent obliquely inwardly and thermally fused to form a roof shape. In the container, a part of the heat-fusible sheet on the upper edge of at least one of the two folded surfaces and / or a part of the heat-fusible sheet on the roof constituting surface corresponding to the upper edge of the folded surface pack container roofing type liquid, characterized in that the removal.