CORRUGATED CARDBOARD MATERIAL AND CORRUGATED CARDBOARD BOX USING SAME

WIPO Patent Application WO/2020/246163

A1

A corrugated cardboard material (1) is designed such that a rectangle sheet (2) in a sequential double-sided corrugated cardboard is folded back in a second direction MD at each fold F linearly extending along a first direction CD and stacked in a third direction TD. In the corrugated cardboard material (1), a liner constituting the double-sided corrugated cardboard has a basis weight of 110 [g/m2] or more and 290 [g/m2] or less. The liner has a pulp fiber length of 0.55 [mm] or more and 1.60 [mm] or less. A fiber orientation ratio representing the ratio of the orientation of pulp fibers of the liner in the second direction MD to the orientation thereof in the first direction CD is 1.0 or more and 2.0 or less. A fiber length ratio representing the ratio of a pulp fiber length of a liner base paper to a pulp fiber length of a corrugating medium constituting the double-sided corrugated cardboard is 0.65 or more and 1.90 or less.

SANADA SHOHEI (JP)
KAWANAMI YUSEI (JP)
SATO SO (JP)
BANZASHI GO (JP)
YAMAGUCHI TAKAMICHI (JP)
SHIODA SHUNSUKE (JP)
TAKASUGI YUSAKU (JP)
KOSEKI YOSHIKI (JP)

PCT/JP2020/017263

December 10, 2020

April 21, 2020

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OJI HOLDINGS CORP (JP)

B31F1/08; B32B3/28; B65D5/42; D21H27/40

WO2017208845A1

2017-12-07

JP2009172942A	2009-08-06
JP2016030442A	2016-03-07
JP2015509473A	2015-03-30
JP2003251720A	2003-09-09
JPS60168923U	1985-11-09
JP2005179586A	2005-07-07
JPS62280030A	1987-12-04
JP2000109049A	2000-04-18
JP3160065U	2010-06-10
CN103991260A	2014-08-20
US20140093705A1	2014-04-03

"Hand book of pulp and paper technolog", JAPAN TAPPI, 30 January 1992 (1992-01-30), pages 484 - 486

SANADA, Tamotsu (JP)

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