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    A METHOD FOR MANUFACTURING A PURIFIED FIBER FRACTION FROM USED BEVERAGE CARTON
    1.
    发明专利
    A METHOD FOR MANUFACTURING A PURIFIED FIBER FRACTION FROM USED BEVERAGE CARTON 未知

    公开(公告)号：SE546815C2

    公开(公告)日：2025-02-25

    申请号：SE2151330

    申请日：2021-10-29

    Applicant: STORA ENSO OYJ

    Inventor： LJUNGQVIST CARL-HENRIK ,  BACKFOLK KAJ ,  TOLLNERIUS LENA

    IPC: D21B1/32 ,  B32B27/10 ,  D21B1/02

    Abstract: The present invention relates to a method for manufacturing a purified fiber fraction from used beverage carton (UBC), said method comprising the steps:a) subjecting UBC starting material to a polymer and aluminum film separation method to obtain a UBC polymer and aluminum fraction and a raw UBC fiber fraction;b) optionally subjecting the raw UBC fiber fraction to a coarse screening method to remove coarse particles;c) subjecting the raw UBC fiber fraction to a fine screening method to remove cellulose fines and fine particulate contaminants, wherein the fine screening method comprises at least one fine screening step and at least one washing step; d) optionally subjecting the fine screened UBC fiber fraction to a washing method to remove further contaminants;e) optionally subjecting the fine screened UBC fiber fraction to a bleaching method;f) subjecting the fine screened, and optionally bleached, UBC fiber fraction to a dewatering method to a consistency of at least 20 wt%; andg) subjecting the dewatered UBC fiber fraction to deactivation to obtain a purified UBC fiber fraction.

    Coated paperboard for beverage container carriers and corresponding beverage container carrier
    2.
    发明专利
    Coated paperboard for beverage container carriers and corresponding beverage container carrier 未知

    公开(公告)号：SE2051227A1

    公开(公告)日：2022-04-22

    申请号：SE2051227

    申请日：2020-10-21

    Applicant: STORA ENSO OYJ

    Inventor： LJUNGQVIST CARL-HENRIK

    IPC: D21H21/16 ,  B65D71/16 ,  D21H17/14 ,  D21H17/17 ,  D21H17/62 ,  D21H19/12 ,  D21H19/36 ,  D21H19/84 ,  D21H21/20

    Abstract: Coated paperboard for beverage container carriers and corresponding beverage container carrierThe invention relates to a coated paperboard (10) for beverage container carriers (30) comprising:- a paperboard substrate (12),- a dispersion coating layer (18, 20) on each side (14, 16) of the paperboard substrate (12),wherein the paperboard substrate (12) compriseswet strength agents in an amount in a range from ≥ 0 wt% to ≤ 0.05 wt%, based on the dry solid content of the substrate (12) and- sizing agents for making the paperboard (12) substrate more hydrophobic, wherein the sizing agents are present in an amount of ≥ 0,15 wt%, especially in a range from ≥ 0,15 wt% to ≤ 0.5 wt%, based on the dry solid content of the substrate (12).The invention further relates to a beverage container carrier (30) comprising or being made from the aforementioned coated paperboard (10).

    A MULTIPLY PAPERBOARD FOR USE IN FOOD OR LIQUID PACKAGING LAMINATES
    4.
    发明专利
    A MULTIPLY PAPERBOARD FOR USE IN FOOD OR LIQUID PACKAGING LAMINATES 未知

    公开(公告)号：SE546885C2

    公开(公告)日：2025-03-04

    申请号：SE2151333

    申请日：2021-10-29

    Applicant: STORA ENSO OYJ

    Inventor： LJUNGQVIST CARL-HENRIK ,  BACKFOLK KAJ ,  WAHLSTRÖM TORBJÖRN

    IPC: D21H11/14 ,  B32B27/10 ,  B32B29/00 ,  B65D65/40 ,  D21H27/38

    Abstract: The present invention relates to a multiply paperboard for use in food or liquid packaging laminates comprising fibers obtained from used beverage cartons (UBC), said multiply paperboard comprising: a first outer ply, a second outer ply, and at least one intermediate ply sandwiched between the first and second outer ply, wherein said first and second outer ply comprise less than 5 wt% fibers obtained from UBC, and wherein said intermediate ply comprises 5-70 wt% fibers obtained from UBC. The present invention relates to a method for manufacturing such multiply paperboard and a food or liquid packaging laminate comprising such multiply paperboard.

    A METHOD FOR MANUFACTURING A PURIFIED FIBER FRACTION FROM USED BEVERAGE CARTON
    7.
    发明专利
    A METHOD FOR MANUFACTURING A PURIFIED FIBER FRACTION FROM USED BEVERAGE CARTON 未知

    公开(公告)号：SE546824C2

    公开(公告)日：2025-02-25

    申请号：SE2151331

    申请日：2021-10-29

    Applicant: STORA ENSO OYJ

    Inventor： LJUNGQVIST CARL-HENRIK ,  HEISKANEN ISTO ,  BACKFOLK KAJ

    IPC: D21B1/32 ,  B32B27/10 ,  D21B1/02

    Abstract: The present invention relates to a method for manufacturing a purified fiber fraction from used beverage carton (UBC), said method comprising the steps:a) subjecting a UBC starting material to a polymer and aluminum film separation method to obtain a UBC polymer and aluminum fraction and a raw UBC fiber fraction;b) optionally subjecting the raw UBC fiber fraction to a coarse screening method to remove coarse particles;c) subjecting the raw UBC fiber fraction to a fine screening method to remove cellulose fines and fine particulate contaminants, wherein the fine screening method comprises at least one fine screening step and at least one dilution step; d) optionally subjecting the fine screened UBC fiber fraction to a bleaching method;e) subjecting the fine screened, and optionally bleached, UBC fiber fraction to an electro-osmosis method to remove further contaminants;f) optionally subjecting the fine screened, and optionally bleached, UBC fiber fraction to a dewatering method to a consistency of at least 20 wt%; and g) subjecting the optionally dewatered UBC fiber fraction to a deactivation method to obtain a purified UBC fiber fraction.

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