PACKAGE MANUFACTURING METHOD

Abstract

A package manufacturing method according to an embodiment of the present invention is a method for manufacturing a package that has a pleat extending downward from the periphery of at least a bottom surface portion thereof, and that is self-standing, the method comprising: a step for causing an elongate film 20 to travel in a longitudinal direction, and adhering an upstream-side inner surface and a downstream-side inner surface of the film 20 face-to-face to each other to thereby form a plurality of pleats 11 that extend in a widthwise direction of the film 20 at predetermined intervals; a step for controlling the orientation of the pleats 11 so that the tip-ends of the pleats 11 formed in the film 20 face the upstream side or downstream side in the travel direction of the film 20; and a step for supplying contents to the film 20 with the pleats 11 formed therein, and pillow-packaging the film 20 so that the pleats 11 are positioned at the periphery of at least the bottom surface portion of the package.

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