Patent attributes
A liquid container manufacturing method includes: a liquid blow molding step of molding a preform into a liquid container having a shape conforming to an inner surface of a blow-molding mold, by supplying a pressurized liquid to an interior of the preform through a supply path in a state where a blow nozzle is engaged to a mouth of the preform; and a headspace forming step of forming a headspace in the liquid container, by discharging the liquid from an interior of the liquid container through a discharge port in a discharge rod extending to the interior of the liquid container through the blow nozzle, by introducing a pressurized gas to the interior of the liquid container through a gas inflow path in a state where the supply path is closed.
