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Title:
NOVEL CARDBOARD
Document Type and Number:
WIPO Patent Application WO/2020/248974
Kind Code:
A1
Abstract:
Cardboard, comprising an upper paper layer (1), a lower paper layer (2), and also comprising a corrugated paper layer (3) respectively bonded to the upper paper layer (1) and the lower paper layer (2), the corrugated paper layer (3) comprising more than two layers of wavy corrugated paper (31), and the corrugation direction of adjacent layers of the wavy corrugated paper (31) intersecting in a cross shape.

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Inventors:
LI RUORAN (CN)
Application Number:
PCT/CN2020/095145
Publication Date:
December 17, 2020
Filing Date:
June 09, 2020
Export Citation:
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Assignee:
SHANDONG TAIHUI PACKING CO LTD (CN)
International Classes:
B32B29/00; B31F1/20; B32B29/08; B65D65/40; D21H27/40
Domestic Patent References:
WO2010112627A12010-10-07
Foreign References:
CN110091569A2019-08-06
CN2092423U1992-01-08
CN109733040A2019-05-10
CN2761418Y2006-03-01
CN104108220A2014-10-22
Attorney, Agent or Firm:
JINAN QUANCHENG PATENT&TRADEMARK OFFICE (CN)
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