Title:
紙製容器の製造方法
Document Type and Number:
Japanese Patent JP7042131
Kind Code:
B2
Abstract:
[Problem] The purpose of the present invention is to provide a method for manufacturing a paper container in which creasing of the container surface does not readily occur and which has curved surfaces provided with a bottom rim. [Solution] A method for manufacturing a paper container having paper as the primary material, at least the inner-surface side of the container being provided with a thermoplastic resin, and the paper container comprising a body member and a bottom member, wherein the method for manufacturing a paper container is characterized by including: a body member forming step for forming the body member so as to have a tubular shape or a reverse truncated-cone shape in which the upper-end part and the lower-end part of the body member are free; a joining part forming step for bending the outer-peripheral edge of the bottom member so as to have a high-rimmed dish shape, folding the lower-end part of the body member inward so as to sandwich the outer-peripheral edge of the bottom member, and performing thermal pressure-bonding to form a joined part. The bottom-surface part of the bottom member is recessed so as to protrude downward beyond the joined part. FIG. 1
Inventors:
Kyutaro Ikeda
Noboru Sakata
Yosuke Nakatani
Kohei Sasano
Noboru Sakata
Yosuke Nakatani
Kohei Sasano
Application Number:
JP2018061462A
Publication Date:
March 25, 2022
Filing Date:
March 28, 2018
Export Citation:
Assignee:
Nissin Foods Holdings Co., Ltd.
International Classes:
B65D3/14; B31B50/59
Domestic Patent References:
| JP3169260U | ||||
| JP2002292762A | ||||
| JP2014169092A | ||||
| JP2013193220A |
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