Title:
CARDBOARD MATERIAL
Document Type and Number:
Japanese Patent JP2021062599
Kind Code:
A
Abstract:
To secure identifiability of a joint part of a cardboard material of a bellows folding.SOLUTION: In a cardboard material 1 of a bellows folding, a rectangular sheet 2 is folded back in a second direction MD in each of creases F linearly extending along a first direction CD in a continuous cardboard, and the sheet 2 is stacked along a third direction TD. The cardboard material 1 includes: a joint part 3 that joins at least parts of materials 11 and 12 constituting the cardboard with one another to continue them in a continuous direction of the cardboard; and a marking part 5 that allows identification of presence of the joint part 3.SELECTED DRAWING: Figure 2
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Inventors:
SANADA SHOHEI
SHIODA SHUNSUKE
SATO SO
KAWANAMI HISAO
BANZASHI GO
KOSEKI YOSHIKI
SHIODA SHUNSUKE
SATO SO
KAWANAMI HISAO
BANZASHI GO
KOSEKI YOSHIKI
Application Number:
JP2020069283A
Publication Date:
April 22, 2021
Filing Date:
April 07, 2020
Export Citation:
Assignee:
OJI HOLDINGS CORP
International Classes:
B31F5/00; B65H26/06
Attorney, Agent or Firm:
Yu Sanada