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    METHOD AND DEVICE FOR PRODUCING AN MFC FILM
    101.
    发明专利
    METHOD AND DEVICE FOR PRODUCING AN MFC FILM 未知

    公开(公告)号：SE544871C2

    公开(公告)日：2022-12-20

    申请号：SE2150209

    申请日：2021-02-26

    Applicant: STORA ENSO OYJ

    Inventor： BACKFOLK KAJ ,  NYLÉN OTTO

    IPC: C08J5/18 ,  B05C1/04 ,  B05D1/00 ,  B32B29/02 ,  C09D101/02 ,  D21H11/18 ,  D21H23/32

    Abstract: 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.

    BIOBASED BARRIER FILM FOR PACKAGING MATERIAL
    102.
    发明专利
    BIOBASED BARRIER FILM FOR PACKAGING MATERIAL 未知

    公开(公告)号：SE2150737A1

    公开(公告)日：2022-12-11

    申请号：SE2150737

    申请日：2021-06-10

    Applicant: STORA ENSO OYJ

    Inventor： HEISKANEN ISTO ,  BACKFOLK KAJ ,  LYYTIKÄINEN KATJA

    IPC: C08J5/18 ,  B32B27/10 ,  D21H11/18 ,  D21H19/12 ,  D21H19/36

    Abstract: The present invention relates to a biobased barrier film for a paper or paperboard-based packaging material, said barrier film comprising: a substrate layer and a coating layer disposed on at least one surface of the substrate layer, wherein said substrate layer has a grammage in the range of 1-60 g/m2 and comprises at least 50 wt% of highly refined cellulose pulp based on the dry weight of the substrate layer, and wherein said coating layer has a grammage in the range of 1-15 g/m2 and comprises at least 50 wt% of a film forming modified starch and 0.1-10 wt% of a biobased lubricant, based on the dry weight of the coating layer.

    Method of producing a cellulose fiber structure
    104.
    发明专利
    Method of producing a cellulose fiber structure 未知

    公开(公告)号：SE544633C2

    公开(公告)日：2022-09-27

    申请号：SE1950981

    申请日：2019-08-29

    Applicant: STORA ENSO OYJ

    Inventor： PENG FRANK ,  BACKFOLK KAJ ,  KAZEMAHVAZI SOHRAB

    IPC: D21J7/00 ,  B65D65/38 ,  D21H11/18 ,  D21H17/66 ,  D21J3/00

    Abstract: The invention discloses a method for producing a three dimensional molded structure from cellulose fibers, comprising the steps of:-providing an aqueous composition comprising cellulose pulp and at least one metal salt in a substantially homogeneous mixture, wherein said mixture has a solid content between 0.05-10wt%;-providing a forming tool having a three dimensional shape comprising a forming portion, and bringing said forming portion into contact with the aqueous composition so that said forming portion is covered with a wet layer of pulp;-dewatering the layer of pulp contacted by the forming tool at temperatures >100°C to a dry content of at least 70wt% to achieve the three dimensional molded structure.

    A light weight linerboard for corrugated board
    106.
    发明专利
    A light weight linerboard for corrugated board 未知

    公开(公告)号：AU2020408287A1

    公开(公告)日：2022-06-30

    申请号：AU2020408287

    申请日：2020-12-11

    Applicant: STORA ENSO OYJ

    Inventor： LAMPAINEN SEPPO ,  MYLLYKANGAS JANNE ,  PAAKKANEN PETRI ,  LAAKSO ATSO ,  BACKFOLK KAJ

    IPC: D21F11/04 ,  B32B29/08 ,  D21F1/02 ,  D21H27/38 ,  D21H27/40

    Abstract: The invention relates to a method to produce a linerboard exhibiting a high bending resistance and a high compression strength, which in turn provides high resistance to interflute buckling and sagging in a thereof formed corrugated board. This is achieved by the inventive combination of an optimized fiber refining level of the furnish in each layer of the linerboard, the separate formation of the top layer and the use of a multi-layer headbox to form the two-layered ply. In addition, the linerboard made according to the invention provides good printing properties in a thereof produced corrugated board, especially in flexographic printing, without the fluting structure being negatively affected.

    Método de fabricação para uma película ou produto compreendendo um polímero anfifílico
    108.
    发明专利
    Método de fabricação para uma película ou produto compreendendo um polímero anfifílico 未知

    公开(公告)号：BR112017028127B1

    公开(公告)日：2022-04-19

    申请号：BR112017028127

    申请日：2016-06-21

    Applicant: STORA ENSO OYJ

    Inventor： ESA TAPIO SAUKKONEN ,  HEISKANEN ISTO ,  BACKFOLK KAJ ,  KATJA ELIISA LYYTIKÄINEN

    IPC: C08J5/18 ,  C08L1/02 ,  D21H11/18 ,  D21H17/24 ,  D21H19/10 ,  D21H21/56 ,  D21H23/28

    Abstract: método de fabricação para uma película ou produto compreendendo um polímero anfifílico. a presente invenção se refere a um método para fabricação de uma película (um filme), em que referida película é fabricada em uma máquina de papel ou papelão, em que o método compreende a etapa de provisão de uma solução de um polissacarídeo nanofibrilado, em que referida solução compreende a partir de 0,01 % em peso até 50 % em peso de polissacarídeo nanofibrilado, e em que o polissacarídeo nanofibrilado é qualquer um de celulose microfibrilada, celulose nanofibrilada, whiskers de celulose e derivado de celulose ou uma combinação ou mistura das mesmas. em concordância com a presente invenção, o método adicionalmente compreende as etapas de provisão de um polímero anfifílico; e provisão de uma mistura de referido polímero anfifílico e referida solução compreendendo polissacarídeo nanofibrilado, por intermédio do que uma solução intermediária é obtida; concretização de referida solução intermediária em uma espuma; provisão de referida espuma na máquina de papel ou papelão

    A method for producing a multilayer machine glazed paper comprising highly refined cellulose fibers and a multilayer machine glazed paper produced
    109.
    发明专利
    A method for producing a multilayer machine glazed paper comprising highly refined cellulose fibers and a multilayer machine glazed paper produced 未知

    公开(公告)号：SE2051027A1

    公开(公告)日：2022-03-02

    申请号：SE2051027

    申请日：2020-09-01

    Applicant: STORA ENSO OYJ

    Inventor： KAUPPI ANNA ,  HEISKANEN ISTO ,  KORVENNIEMI JUHA ,  KANKKUNEN JUKKA ,  BACKFOLK KAJ

    IPC: D21H25/04 ,  B32B29/00 ,  D21H11/18 ,  D21H27/30

    Abstract: The present invention relates to a method for manufacturing a multilayer machine glazed paper comprising highly refined cellulose fibers, the method comprising the steps of: forming a first wet web by applying at least one first pulp suspension comprising highly refined cellulose fibers on a first wire; partially dewatering the first wet web to obtain a first partially dewatered web; forming a second wet web by applying at least one second pulp suspension comprising highly refined cellulose fibers on a second wire; partially dewatering the second wet web to obtain a second partially dewatered web; joining the first and second partially dewatered web to obtain a multilayer web; optional dewatering the multilayer web in a dewatering unit, and glazing the multilayer web in at least one glazing unit to obtain a multilayer machine glazed paper comprising highly refined cellulose fibers. The invention also relates to a multiply MG paper produced according to the method.

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