Abstract: Provided is a hygroscopic packaging container which eliminates the necessity of filling a moisture absorbent and which has satisfactory working efficiency and is highly effective in moisture absorption. The hygroscopic packaging container is obtained from two gas-barrier multilayer films each comprising a gas-barrier layer and a heat-sealable layer, by stacking the gas-barrier multilayer films so that the surface of one of the heat-sealable layers overlies that of the other and heat-sealing the peripheral parts of the layers, at least one heat-sealable layer of the two gas-barrier multilayer films being a hygroscopic heat-sealable layer.

Abstract: Provided is a hygroscopic packaging container which eliminates the necessity of filling a moisture absorbent and which has satisfactory working efficiency and is highly effective in moisture absorption. The hygroscopic packaging container is obtained from two gas-barrier multilayer films each comprising a gas-barrier layer and a heat-sealable layer, by stacking the gas-barrier multilayer films so that the surface of one of the heat-sealable layers overlies that of the other and heat-sealing the peripheral parts of the layers, at least one heat- sealable layer of the two gas-barrier multilayer films being a hygroscopic heat-sealable layer.

Abstract: A pouch of the present invention comprises a front and a rear walls and a narrow pouring portion, and at least one wall portion is partially protruded to an outward direction of the pouch to be provided with a bulge portion having a hollow structure at vicinity of the pouring portion. Alternatively, a cut line of the pouring portion is positioned based on a vertex of a vertical angle of an assumed right triangle which is drawn at the pouring portion by the predetermined regulations. A half-cut line as an opening aid may be provided to a position to be opened of the pouch, the half-cut line being formed so as to have a combination of a deep part and a shallow part and/or a combination of a wide part and a narrow part. The bulge portion may be formed by subjecting a preheated resin film to press molding with the use of a die comprising a cavity and a core, and then cooling the thus press-molded resin film while it is held in the die.