METHOD AND DEVICE FOR PRODUCING AN MFC FILM
    6.
    发明公开

    公开(公告)号:US20240141589A1

    公开(公告)日:2024-05-02

    申请号:US18547375

    申请日:2022-02-23

    申请人: Stora Enso OYJ

    IPC分类号: D21F1/02 B05C5/02 D21H11/16

    摘要: A method of casting an MFC film on a substrate (52) comprises providing an MFC dispersion having a solids content of 2.5-25% by weight, and a viscosity above 4 Pas at a shear rate of 20 s−1; exposing the MFC dispersion to a first shearing step (9), providing a shear rate of above 10 s−1; introducing the MFC dispersion into a film forming device (4), laterally distributing (41) the MFC dispersion: exposing the distributed MFC dispersion to a second shearing step (42), providing a shear rate of above 100 s−1; decelerating (43) the distributed MFC dispersion: exposing the MFC dispersion to a third shearing step (44), providing a shear rate of above 100 s−1; and simultaneously with, or subsequent to, the third shearing step (44), depositing the MFC dispersion on the substrate to form a wet MFC film on the substrate.

    METHOD FOR MANUFACTURING A BARRIER FILM COMPRISING HIGHLY REFINED CELLULOSE

    公开(公告)号:US20240133118A1

    公开(公告)日:2024-04-25

    申请号:US18548368

    申请日:2022-03-08

    申请人: Stora Enso OYJ

    摘要: The present invention relates to a method for manufacturing a barrier film comprising highly refined cellulose, said method comprising: a) providing a highly refined cellulose pulp suspension comprising highly refined cellulose pulp having a Schopper-Riegler (SR) number in the range of 40-98 as determined by standard ISO 5267-1 and a content of fibers having a length >0.2 mm of at least 7 million fibers per gram based on dry weight, at a consistency in the range of 0.1-1.5 wt %; b) forming a web of the highly refined cellulose pulp suspension and dewatering the web in a paper machine former on a wire to a consistency of at least 5 wt % to obtain a substrate web, wherein the white water removed from the pulp contains 2-25 wt %, preferably 5-20 wt % and more preferably at least 5-15 wt % of the solids of the highly refined cellulose pulp suspension provided in step a); c) optionally further dewatering and optionally drying the substrate web; d) coating the optionally further dewatered and optionally dried substrate web with a coating suspension comprising cellulose fines or microfibrillated cellulose to obtain a coated web; and e) dewatering and/or drying the coated web to obtain a barrier film comprising highly refined cellulose.

    Take away cup carrier
    9.
    外观设计

    公开(公告)号:USD1000291S1

    公开(公告)日:2023-10-03

    申请号:US29772305

    申请日:2021-03-01

    申请人: Stora Enso OYJ

    设计人: To Kwan

    摘要: FIG. 1 is a top plan view of a take away cup carrier showing my new design, shown in an unassembled configuration, the bottom plan view being identical thereto;
    FIG. 2 is a front and left side perspective view of the take away cup carrier in an assembled configuration;
    FIG. 3 is a rear side elevational view of the take away cup carrier in the assembled configuration;
    FIG. 4 is a front elevational view of the take away cup carrier in the assembled configuration;
    FIG. 5 is a right side elevational view of the take away cup carrier in the assembled configuration;
    FIG. 6 is a left side elevational view of the take away cup carrier in the assembled configuration;
    FIG. 7 is a top plan view of the take away cup carrier in the assembled configuration; and,
    FIG. 8 is a bottom plan view of the take away cup carrier in the assembled configuration.
    The broken lines are shown for the purpose of illustrating parts of the article. None of the broken lines form part of the claimed design.