公开(公告)号：EP4442451A1

公开(公告)日：2024-10-09

申请号：EP22910995.4

申请日：2022-12-12

申请人： Toppan Holdings Inc.

发明人： KOSHIYAMA Yoshiki ,  KAMINAGA Junichi ,  KOJIMA Yumiko ,  ISHII Rika ,  WAKABAYASHI Hiroyuki

IPC分类号： B32B9/00 ,  B32B27/10 ,  B32B27/30 ,  B32B27/32 ,  B32B29/00 ,  B32B29/06 ,  B65D65/40 ,  D21H19/08 ,  D21H19/20 ,  D21H19/22 ,  D21H27/30

CPC分类号： B32B9/00 ,  B32B27/30 ,  B32B27/32 ,  B32B27/10 ,  B32B29/00 ,  B32B29/06 ,  B65D65/40 ,  D21H19/08 ,  D21H19/20 ,  D21H19/22 ,  D21H27/30

摘要： A gas barrier laminate according to one aspect of the present disclosure is a gas barrier laminate including a paper base material, a first resin layer, a vapor-deposited layer, and a second resin layer in this order, in which the gas barrier laminate has a density of 0.9 g/cm3 or higher and 1.5 g/cm3 or lower, and a dimensional change percentage in a CD direction of a dimension under conditions of 40°C and 90%RH with respect to a dimension under conditions of 40°C and 20%RH of the gas barrier laminate is 0.8% or less.