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AssigneeChokoku Plast Corporation
InventorsHiromichi Inagaki, Sakaru Takahashi
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The object of the present invention is to provide a pleated stand-up packaging material which is capable of improving a heat seal property on a portion where a rib and a pleat cross at a right angle. Another object of the present invention is to provide a pleated stand-up packaging material which is capable of improving a stability and an esthetic appearance when it is stood up by sharply bending the portion where the rib and the pleat cross at a right angle. In the pleated stand-up packaging pouch comprising a rib in a pinch form which is formed by adhering inner faces of end edges of the packaging material, and at least one pleat which is formed by folding the pleated stand-up packaging material in a three-ply strip form in the orthogonal direction to its longitudinal direction and adhering inner faces of the folded portions, characterized in that the pleat formed on an edge between a folded bottom face portion and a peripheral portion extends from the peripheral portion in the same plane as the peripheral portion, and the bottom face portion and an upper end of an underside face of the pleat form a substantially right angle, and the pleat comprises a cut-off portion at the portion where the pleat and the rib cross.
In the pleated stand-up packaging pouch comprising a rib in a pinch form which is formed by adhering inner faces of end edges of the packaging material, and at least one pleat which is formed by folding the packaging material in a three-ply strip form in the orthogonal direction to its longitudinal direction and adhering inner faces of the folded portions, characterized in that the pleat formed on an edge between a folded bottom face portion and a peripheral portion extends from the peripheral portion in the same plane as the peripheral portion, and the bottom face portion and an upper end of an underside face of the pleat form a substantially right angle, and the pleat comprises a cut-off portion at the portion where the pleat and the rib cross.
In a feed roll for a pleated stand-up packaging body, at least one surface of the feed roll has a heat seal property, and a pleat is formed on a surface opposite to the surface having the heat seal property by folding the feed roll in a three-ply strip form in the orthogonal direction to the direction in which the feed roll is fed, the pleat is positioned to be a position spaced apart with a predetermined distance required for forming a bottom face portion of the packaging body in the feeding direction from the position where the feed roll is cut off in the orthogonal direction to the direction in which the feed roll is fed upon the pouch is manufactured, and a cut-off portion is formed on a portion where the pleat and the rib formed in a pinch form by adhering inner faces of end edges of the packaging material cross.
Dependencies are inferred from the claim text.