A packaging machine includes a pair of grips holding vicinities of two sides of a bag mouth of a packaging bag, a moving body to intermittently moving the paired grips every one of a plurality of packaging steps, and a paper packaging bag sealing device provided in a section where a sealing step is carried out, for sealing a paper packaging bag to which a sealing adhesive agent has been applied.

The present disclosure provides systems, apparatus and methods for forming, filling, closing, and sealing gable-top cartons with liquid detergent compositions such as all-purpose cleaners, dish soaps, and hand soaps, and without incurring leaking. The liquid detergent compositions in the corresponding gable-top are generally from a wide spectrum of high to low viscosity and PH levels. Once properly formed, filled, and sealed the liquid detergent compositions may remain inside the gable-top carton without leaking or degradation for at least the liquid detergent composition's shell life.

The present disclosure provides systems, apparatus and methods for forming, filling, closing, and sealing gable-top cartons with liquid detergent compositions such as all-purpose cleaners, dish soaps, and hand soaps, and without incurring leaking. The liquid detergent compositions in the corresponding gable-top are generally from a wide spectrum of high to low viscosity and PH levels. Once properly formed, filled, and sealed the liquid detergent compositions may remain inside the gable-top carton without leaking or degradation for at least the liquid detergent composition's shell life.

A top forming part creasing mechanism for forming a top portion of a paper container, the top forming part creasing mechanism includes: a first creasing device (4) that valley-folds, along horizontal folding lines (111, 113), a right side panel (112) and a left side panel (114) of a carton blank (126) fitted onto a mandrel so as to spread out the right side panel and the left side panel from a center to an outer side of the carton blank; a second creasing device (5) that makes creases by inwardly mountain-folding a top upper surface panel (108) and a top upper surface auxiliary panel (110) along horizontal folding lines (107, 109); and a third creasing device (6) that makes a crease by outwardly valley-folding a sealing panel (117), which is provided on an edge of the top upper surface auxiliary panel, along a horizontal folding line (116).