Title:
NOVEL FOUR-LAYER PAPERBOARD
Document Type and Number:
WIPO Patent Application WO/2021/017648
Kind Code:
A1
Abstract:
A novel four-layer paperboard, comprising upper surface paper, an upper corrugated layer, a lower corrugated layer, and lower bottom paper which are sequentially connected together, the wave crests of the upper corrugated layer and the lower corrugated layer being adhered to each other in one-to-one correspondence.
Inventors:
ZHANG CHENGTAI (CN)
Application Number:
PCT/CN2020/095008
Publication Date:
February 04, 2021
Filing Date:
June 09, 2020
Export Citation:
Assignee:
SHANDONG TAIHUI PACKING CO LTD (CN)
International Classes:
D21H27/40; B23B29/00; B32B29/08
Foreign References:
| CN210458782U | 2020-05-05 | |||
| CN2900158Y | 2007-05-16 | |||
| CN108516177A | 2018-09-11 | |||
| CN108486962A | 2018-09-04 | |||
| CN86108155A | 1988-06-15 |
Attorney, Agent or Firm:
JINAN QUANCHENG PATENT&TRADEMARK OFFICE (CN)
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