Method of manufacturing liquid container
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United States of America Patent
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Sep 27, 2022
Grant Date -
May 27, 2021
app pub date -
May 7, 2018
filing date -
Jun 30, 2017
priority date (Note) -
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status (Latency Note)
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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.
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