Liquid-containing container manufacturing method
AssigneeYoshino Kogyosho Co., Ltd.
InventorToshimasa Tanaka
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Abstract
A liquid-containing container manufacturing method includes: a liquid blow molding step of, in a state in which a reversal panel formation part forms a convex surface projecting toward inside of a cavity, supplying a pressurized liquid into a preform placed inside a cavity, to mold the preform into a container including a reversal panel; and a headspace formation step of pressing the container by a press part to reverse the reversal panel, and thereafter releasing press by the press part to increase a volume of the container and thereby form a headspace.
Claims6
A liquid-containing container manufacturing method of manufacturing a liquid-containing container containing a content liquid from a synthetic resin-made preform using a manufacturing device that includes a blow molding mold and a nozzle unit, the blow molding mold including a reversal panel formation part, the manufacturing device including a press part, and the liquid-containing container manufacturing method comprising:
- a liquid blow molding step of, in a state in which the reversal panel formation part forms a convex surface projecting toward inside of a cavity, supplying a pressurized liquid into the preform placed in the cavity from the nozzle unit, to mold the preform into a container including a reversal panel formed by the reversal panel formation part;
- and
- a headspace formation step of pressing the container by the press part to reverse the reversal panel so as to project toward outside of the container, and thereafter releasing press by the press part to increase a volume of the container and thereby form a headspace.
Dependencies are inferred from the claim text.