Method for manufacturing laminate and laminate

JP2025521957A5Pending Publication Date: 2026-06-08STORA ENSO OYJ

Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
STORA ENSO OYJ
Filing Date
2023-06-29
Publication Date
2026-06-08
Patent Text Reader

Abstract

The present invention relates to a method for manufacturing a laminate comprising a paper or paperboard substrate and a microfibrillated cellulose (MFC) film. A first web comprising a paper or paperboard substrate is provided. A second web of the MFC film is provided, and the MFC film has a) an MFC content of 50 to 100% by weight based on the total dry weight, b) a moisture content of 5 to 20% by weight, and c) a ratio of the machine direction tensile index to the cross direction tensile index of 0.8 to 1.4. The first web and the second web are joined using at least one adhesive layer provided between the webs so as to form a laminate. The MFC film of the laminate is further dried until it has a moisture content of less than 4% by weight. The present invention also relates to the laminate and a packaging material comprising the laminate.
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