Liquid container manufacturing method
AssigneeYoshino Kogyosho Co., Ltd.
InventorsHideaki Hoshino, Shinichi Tabata, Yuichi Okuyama, Shigeki Morikami
Life of this patent
Estimating the term…
Abstract
A liquid container manufacturing method includes: a nozzle fitting step of fitting a blow nozzle into a mouth of a preform; a liquid replacing step of replacing the air in the preform with a liquid by supplying a predetermined amount of liquid from a liquid supply port to the preform with a discharge port open; and a liquid blow molding step of molding the preform into a liquid container by supplying a pressurized liquid from the liquid supply port into the preform after the discharge port is closed.
Claims9
A container manufacturing method of manufacturing a liquid container containing a content liquid from a synthetic resin preform, the method comprising:
- a nozzle fitting step of fitting a blow nozzle into a mouth of the preform placed in a mold for blow molding;
- a liquid replacing step of replacing air in the preform with a liquid by supplying a predetermined amount of liquid into the preform at a pressure at which the preform is not liquid blow molded and from a liquid supply port provided to the blow nozzle separately from a discharge port with the discharge port provided to the blow nozzle open;
- and
- a liquid blow molding step of molding the preform into a liquid container having a shape conforming to an inner surface of the mold for blow molding by supplying a pressurized liquid from the liquid supply port into the preform after the discharge port is closed.
Dependencies are inferred from the claim text.