Title:
DOUBLE-LAYER FOAMED PAPER CONTAINER AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/240392
Kind Code:
A1
Abstract:
A double-layer foamed paper container and a manufacturing method therefor. The manufacturing method for the double-layer foamed paper container comprises the following steps: coating a first foaming material (21); primary drying; coating a second foaming material (22); secondary drying; and heating and foaming. The double-layer foamed paper container using the manufacturing method comprises: a paper container body (10), having an annular wall (11) which defines an accommodating space (12), a first foaming layer (21a) being provided in at least a partial area of a surface of the annular wall (11) facing away from the accommodating space (12).
Inventors:
CHANG CHING-WEN (CN)
Application Number:
PCT/CN2022/098371
Publication Date:
December 21, 2023
Filing Date:
June 13, 2022
Export Citation:
Assignee:
CHANG CHING WEN (CN)
International Classes:
B65D81/38; B32B5/18
Foreign References:
| JPH09142435A | 1997-06-03 | |||
| CN101875280A | 2010-11-03 | |||
| CN204998907U | 2016-01-27 | |||
| JPH10226003A | 1998-08-25 | |||
| CN113882187A | 2022-01-04 | |||
| CN104417926A | 2015-03-18 |
Attorney, Agent or Firm:
BEIJING HUIZE INTELLECTUAL PROPERTY LAW LLC (CN)
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