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    Cartón multicapa
    21.
    发明专利
    Cartón multicapa 未知

    公开(公告)号：ES2754209T3

    公开(公告)日：2020-04-16

    申请号：ES14869474

    申请日：2014-12-12

    Applicant: STORA ENSO OYJ

    Inventor： PENG FRANK ,  MOBERG ANDERS

    IPC: D21H27/30 ,  B32B29/00 ,  D21H11/02 ,  D21H11/08 ,  D21H27/38

    Abstract: Un cartón de alta calidad que comprende al menos tres capas; una capa superficial, una capa intermedia y una capa trasera, en el que la capa intermedia comprende al menos un 50 %, preferentemente al menos un 80%, más preferentemente al menos un 90% por peso de pasta químico-termomecánica a alta temperatura (HT-CTMP) de fibras de madera dura, y todos los porcentajes se calculan sobre el peso total de la fibra de dicha capa intermedia y en el que la capa intermedia muestra una densidad según ISO 534:2011 de menos de 400 kg/m3, una resistencia z según SCAN-P 80:98 de al menos 150 kPa y un valor Scott Bond según TAPPI UM-403 de al menos 100 J/m2.

    METHOD OF PRODUCING A CELLULOSE FIBER STRUCTURE AND A FIBER STRUCTURE
    23.
    发明专利
    METHOD OF PRODUCING A CELLULOSE FIBER STRUCTURE AND A FIBER STRUCTURE 未知

    公开(公告)号：SE2051575A1

    公开(公告)日：2022-07-01

    申请号：SE2051575

    申请日：2020-12-30

    Applicant: STORA ENSO OYJ

    Inventor： PENG FRANK ,  HEISKANEN ISTO ,  BACKFOLK KAJ ,  KAZEMAHVAZI SOHRAB

    IPC: D21J7/00 ,  C08L1/02 ,  C09D101/02 ,  D21H11/18 ,  D21H19/12 ,  D21H21/18 ,  D21J3/00 ,  D21J5/00

    Abstract: The invention discloses a method for producing a three-dimensional molded article from cellulose fibers, comprising the steps of:-providing a pulp molding composition;-molding a three-dimensional precursor structure from said composition wherein said structure comprises a dry content between 15-80wt%;-providing an aqueous suspension comprising microfibrillated cellulose and wet strength agent;-applying the aqueous suspension onto at least one face of said precursor structure to create a surface barrier layer on said structure; and-dewatering and drying said molded precursor structure under elevated temperature >150°C to a dry content of ≥88wt%, preferably ≥94wt%, more preferably ≥96% to achieve the threedimensional molded article.

    Method of producing an imprintable cellulose fiber product and a fiber product
    28.
    发明专利
    Method of producing an imprintable cellulose fiber product and a fiber product 未知

    公开(公告)号：SE1950982A1

    公开(公告)日：2021-03-01

    申请号：SE1950982

    申请日：2019-08-29

    Applicant: STORA ENSO OYJ

    Inventor： PENG FRANK ,  BACKFOLK KAJ ,  KAZEMAHVAZI SOHRAB

    IPC: D21J3/00 ,  B65D65/38 ,  D21H11/18 ,  D21H17/66 ,  D21J5/00 ,  D21J7/00

    Abstract: The invention discloses a method for producing a three dimensional molded structure from cellulose fibers, comprising the steps of:-providing a cellulose fiber material comprising cellulose pulp, said material 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 material;-press drying the cellulose fiber material contacted by the forming tool at temperatures > 20°C to a dry content of at least 70%, preferably at least 80%; and-removing said dried layer from the forming tool to achieve the three dimensional molded product,wherein said method also comprises the step of applying aqueous metal salt spray such that at least one outer surface of the achieved three dimensional molded product comprises at least one metal salt ion originating from said applied metal salt spray.

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