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    METHOD OF PRODUCING A MOLDED FIBER PRODUCT AND MOLDED FIBER PRODUCT
    1.
    发明申请
    METHOD OF PRODUCING A MOLDED FIBER PRODUCT AND MOLDED FIBER PRODUCT 审中-公开

    公开(公告)号：WO2020165780A1

    公开(公告)日：2020-08-20

    申请号：PCT/IB2020/051112

    申请日：2020-02-12

    Applicant: STORA ENSO OYJ

    Inventor： KAZEMAHVAZI, Sohrab ,  JANSSON, Ulla ,  WEDIN, Irene ,  PENG, Frank

    IPC: D21J3/00 ,  B29C33/38 ,  B29C51/00 ,  D21J5/00 ,  D21J7/00

    Abstract: The invention discloses a method for producing a three dimensional molded product from cellulose fibers, comprising the steps of: -providing a cellulose fiber composition comprising 1-30wt% lignin, said cellulose fiber composition further having a solid content between 0.1-95%; -providing a forming tool having a three dimensional shape including a forming surface, and bringing said forming surface into contact with the cellulose fiber composition; and -press drying the cellulose fiber composition contacted by the forming tool at temperatures >200°C to a dry content of at least 70%. The invention also relates to a three dimensional fiber based product obtainable by means of said method.

    REFINED CELLULOSE FIBER COMPOSITION
    2.
    发明申请
    REFINED CELLULOSE FIBER COMPOSITION 审中-公开

    公开(公告)号：WO2021001751A1

    公开(公告)日：2021-01-07

    申请号：PCT/IB2020/056160

    申请日：2020-06-30

    Applicant: STORA ENSO OYJ

    Inventor： JANSSON, Ulla ,  MOBERG, Anders ,  BACKFOLK, Kaj

    IPC: D21H11/18 ,  C08L1/02 ,  D21C9/00 ,  D21D1/00 ,  D21D5/00 ,  D21H21/18 ,  D21H21/52

    Abstract: The present invention relates to a refined cellulose fiber composition useful as a strength enhancing agent for paper and paperboard, wherein the refined cellulose fiber composition has a Schopper-Riegler (SR) number in the range of 80-98 as determined by standard ISO 5267-1, and wherein the refined cellulose fiber composition has a content of fibers having a length >0.2 mm of at least 12 million fibers per gram based on dry weight. The invention further relates to a method for preparing the refined cellulose fiber composition and to pulp paper and paperboard comprising the refined cellulose fiber composition.

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