| 摘要 |
Attempts have been made to give the pouch container an ability of standing upright stably in the inverted position, to facilitate the changes in outer appearances, to enlarge the desired areas on the front and the rear, to achieve high packaging efficiency, and to minimize the lateral protrusions at the bottom seal portion. When these attempts have been achieved, there can be obtained a blow-molded pouch container, which can stand upright stably in its inverted position, has interesting appearances, has high labeling effects, and allows many containers to be packed efficiently in a box, and is convenient to use. A blow-molded container in the shape of a pouch is molded by a blow-molding process from a primary molded product made of synthetic resins. This container has a thin wall and comprises: a body (1) in the shape of a roughly elliptical cylinder; a peripheral edge portion (5) disposed at the upper end of said body (1) to form a peripheral upper edge wall; a shoulder portion (6) in a roughly truncated conical shape, projected upward surrounded by the peripheral edge portion (5), and disposed in a manner in which the shoulder (6) can be flexibly reversed and caved in the body (1); a neck (8) disposed at the upper end of the shoulder portion (6); and a bottom seal portion (3), which is molded and sealed by pressing flat the lower end of the body (1) from the front and the rear, i.e., in the directions along the short axis of said body (1) and by welding the flat lower end portion. The pouch container thus obtained has an ability of standing upright stably and securely in its inverted position, varied outer appearances, wide labeling surface areas, highly efficient packaging, and favorable user-friendliness.
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