Title:
ガスバリア積層体及び包装袋
Document Type and Number:
Japanese Patent JP7342934
Kind Code:
B2
Abstract:
To provide a gas barrier laminate which has not only initial water vapor barrier property but also sufficient water vapor barrier property even after having been folded, and uses paper.SOLUTION: A gas barrier laminate has a paper base material, a first resin layer, a vapor-deposited layer and a second resin layer in this order, wherein density of the gas barrier laminate is 0.9 g/cm3 or more and 1.5 g/cm3 or less, and a dimensional change rate in a CD direction of a dimension under an RH environment of 40°C and 90% RH to a dimension under an RH environment of 40°C and 20% of the gas barrier laminate is 0.8% or less.SELECTED DRAWING: Figure 1
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Inventors:
Yoshiki Koshiyama
Junichi Kaminaga
Yumiko Kojima
Rika Ishii
Hiroyuki Wakabayashi
Junichi Kaminaga
Yumiko Kojima
Rika Ishii
Hiroyuki Wakabayashi
Application Number:
JP2021205724A
Publication Date:
September 12, 2023
Filing Date:
December 20, 2021
Export Citation:
Assignee:
Toppan Printing Co., Ltd.
International Classes:
B32B27/10; B32B9/00; B32B27/32; B32B29/06; B65D65/40
Domestic Patent References:
| JP6944023B2 | ||||
| JP7223686A | ||||
| JP2000314096A | ||||
| JP9164626A | ||||
| JP2009018525A |
Foreign References:
| WO2021010040A1 | ||||
| WO2022202168A1 |
Attorney, Agent or Firm:
Yoshiki Hasegawa
Yoshiki Kuroki
Youhei Suzuki
Yoshiki Kuroki
Youhei Suzuki