公开(公告)号：SE2330071A1

公开(公告)日：2024-08-10

申请号：SE2330071

申请日：2023-02-09

Applicant: STORA ENSO OYJ

Inventor： BACKFOLK KAJ ,  EKMAN KALLE ,  NORDSTRÖM TOMMI

IPC: C23C14/56 ,  C23C16/54 ,  D21H19/08

Abstract: An in-line web material processing machine (1) for producing a coated material is disclosed. The processing machine comprises a process vacuum chamber (31) housing an unwinder reel holder for holding a first supply roll (51) of web material (2) to be processed and a vacuum coating unit (52) for deposing a coating on the web material. A loading vacuum chamber (32) housing a second supply roll of web material to be processed is provided, with an inlet closure (321) arranged between the process vacuum chamber (31) and the loading vacuum chamber (32). The inlet closure (321) is arranged to be moved between a closed state, in which the vacuum chambers are separated from each other, and an open state, in which access is provided between the vacuum chambers. An automatic reel change system (4) is operable to move the second supply roll of web material from the loading vacuum chamber (32) to the process vacuum chamber (31) under vacuum when the inlet closure (321) is in the open state and to change a supply roll (51) on the unwinder reel holder from the first supply roll to the second supply roll under vacuum.

公开(公告)号：SE2230444A1

公开(公告)日：2024-06-28

申请号：SE2230444

申请日：2022-12-27

Applicant: STORA ENSO OYJ

Inventor： HEISKANEN ISTO ,  NORDSTRÖM TOMMI

IPC: D21H19/84 ,  B32B27/10 ,  B32B27/32 ,  C23C14/00 ,  C23C16/00 ,  D21H19/08 ,  D21H19/10 ,  D21H19/56 ,  D21H19/62

Abstract: The present invention relates to a method for manufacturing a coated paper or paperboard product, said method comprising: a) providing a paper or paperboard substrate having a grammage of at least 100 g/m2, a density below 900 kg/m3, and a moisture content of at least 3.5 wt%, as determined according to ISO 638, said paper or paperboard substrate having a first main surface and a second main surface, b) forming a first water vapor barrier layer on the first main surface of the paper or paperboard substrate, said first water vapor barrier layer comprising a thermoplastic polymer, c) forming a second water vapor barrier layer on the second main surface of the paper or paperboard substrate, said second water vapor barrier layer comprising a thermoplastic polymer, and d) forming a vacuum coating layer on said first water vapor barrier layer to obtain the coated paper or paperboard product.