- 专利标题： METHOD FOR PRODUCING GAS BARRIER PAPER PACKAGING MATERIAL, AND GAS BARRIER PAPER PACKAGING MATERIAL
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申请号： EP22832758.1申请日： 2022-06-09
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公开(公告)号： EP4364941A1公开(公告)日： 2024-05-08
- 发明人: ITO, Genta , TANAKA, Hiroki , KOBAYASHI, Kyohei , FUJITA, Atsushi , HARADA, Junichi
- 申请人： Sakata INX Corp.
- 申请人地址： JP Osaka-shi, Osaka 550-0002 23-37, Edobori 1-chome, Nishi-ku,
- 专利权人： Sakata INX Corp.
- 当前专利权人： Sakata INX Corp.
- 当前专利权人地址： JP Osaka-shi, Osaka 550-0002 23-37, Edobori 1-chome, Nishi-ku,
- 代理机构： Cabinet Beau de Loménie
- 优先权： JP 2021108968 2021.06.30
- 国际申请： JP2022023243 2022.06.09
- 国际公布： WO2023276601 2023.01.05
- 主分类号： B32B27/10
- IPC分类号： B32B27/10 ; B65D65/40
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.
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