公开(公告)号：US20240278547A1

公开(公告)日：2024-08-22

申请号：US18569112

申请日：2022-06-09

申请人： SAKATA INX CORP.

发明人： Genta ITO ,  Hiroki TANAKA ,  Kyohei KOBAYASHI ,  Atsushi FUJITA ,  Junichi HARADA

IPC分类号： B32B27/10 ,  B32B7/12 ,  B32B33/00 ,  B32B37/12 ,  B32B37/24

CPC分类号： B32B27/10 ,  B32B7/12 ,  B32B33/00 ,  B32B37/1284 ,  B32B37/24 ,  B32B2037/243 ,  B32B2250/02 ,  B32B2255/10 ,  B32B2255/26 ,  B32B2307/718 ,  B32B2307/7244 ,  B32B2315/16 ,  B32B2323/04 ,  B32B2329/04

摘要： Provided is a method for producing a gas barrier paper packaging material which can impart sufficient gas barrier properties even when a barrier coating agent for forming a barrier layer is applied in a dry amount of 2 g/m2 or less. The method for producing a gas barrier paper packaging material at least includes: a barrier layer forming step of applying a barrier coating agent to one side of a sealant film to form a barrier layer; and a lamination step of laminating the barrier layer and a paper substrate layer via an adhesive layer.