Method of manufacturing liquid container
AssigneeYoshino Kogyosho Co., Ltd.
InventorToshimasa TANAKA
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Abstract
A method of manufacturing a liquid container in which a liquid is stored in a storage space of the container including a mouth, a body and a bottom, the body having a lateral folding line portion being foldable when the body is flattened in a thickness direction and extending in a circumferential direction of the body, the method including a liquid blow molding step of molding a container filled full with a liquid in a storage space by placing a preform in a mold and performing liquid blow molding; and a headspace forming step of forming a headspace in which, by separating the container filled with a liquid from the container, the body is deformed in a direction in which a thickness is increased in an area of the lateral folding line portion and a volume of the storage space is increased.
Claims18
A method of manufacturing a liquid container in which a liquid is stored in a storage space of the container including a mouth, a body and a bottom, the body having a lateral folding line portion configured to be foldable when the body is flattened in a thickness direction and to extend in a circumferential direction of the body, the method comprising:
- a liquid blow molding step of molding a container filled full with a liquid in the storage space by placing a preform in a mold and performing liquid blow molding;
- and
- a headspace forming step of forming a headspace in which, by separating the container filled with a liquid from the mold, the body is deformed in a direction in which the thickness is increased in an area of the lateral folding line portion and a volume of the storage space is increased.
A method of manufacturing a liquid container in which a liquid is stored in a storage space of the container including a mouth, a body and a bottom, the body having a bellows portion configured to be expandable and contractible in a direction perpendicular to a central axis line of the body, the method comprising:
- a liquid blow molding step of molding a container filled full with a liquid in the storage space by placing a preform in a mold and performing liquid blow molding;
- and
- a headspace forming step of forming a headspace in which, by separating the container filled with a liquid from the mold, the bellows portion is expanded and a volume of the storage space is increased.
Dependencies are inferred from the claim text.