Corrugated paper packaging box for liquid food and preparation process thereof

The invention discloses a corrugated paper packaging box for liquid food. The corrugated paper packaging box for the liquid food comprises an outer corrugated paper box, a film bag which is arranged in the outer box, and a liner plate which is arranged between the inner wall of the outer corrugated paper box and the film bag; the film bag is provided with a pouring opening with a sealing cover; a mounting hole is formed in the upper part or the top of the outer corrugated paper box; and the pouring opening penetrates out from the mounting hole and is fixed with the outer corrugated paper box. The invention also discloses a preparation method for the corrugated paper packaging box. The packaging box provided by the invention has high strength, and can replace an existing blow moulded bottle or a plastic pot, so that the packaging cost is reduced. 本发明公开了种液态食品用的瓦楞纸包装盒，包括瓦楞纸外盒、内置在外盒内的薄膜袋以及设置在瓦楞纸外盒内壁与薄膜袋之间的内衬板，所述薄膜袋设有具有密封盖的倒出口，所述瓦楞纸外盒的上部或顶部设有安装孔，所述倒出口自所述安装孔穿出并与瓦楞纸外盒固定。本发明还公开该瓦楞纸包装盒的制备工艺。本发明提供的包装盒具有较强的强度，可以替代现有的吹塑瓶