METHOD FOR APPLYING A WALLPAPER MATERIAL
    102.
    发明申请

    公开(公告)号:US20170350135A1

    公开(公告)日:2017-12-07

    申请号:US15537039

    申请日:2015-12-14

    Applicant: Stora Enso OYJ

    Abstract: The present invention relates to a method for applying a wallpaper material onto a surface comprising the steps of providing a liquid suspension comprising cellulosic fibers wherein at least part of said cellulosic fibers comprises microfibrillated cellulose and wherein said liquid suspension has a dry content of at least 10% by weight, applying at least one layer of said liquid suspension onto the surface, drying said liquid suspension layer after it has been applied onto the surface, and thereby forming a dry fiber web layer, wherein said fiber web layer forms said wallpaper material.

    METHOD AND INTERMEDIATE FOR THE PRODUCTION OF HIGHLY REFINED OR MICROFIBRILLATED CELLULOSE
    106.
    发明申请
    METHOD AND INTERMEDIATE FOR THE PRODUCTION OF HIGHLY REFINED OR MICROFIBRILLATED CELLULOSE 审中-公开
    用于生产高精制或微晶纤维素的方法和中间体

    公开(公告)号:US20150218757A1

    公开(公告)日:2015-08-06

    申请号:US14421708

    申请日:2013-08-16

    Applicant: STORA ENSO OYJ

    Abstract: A method for the production of highly refined or microfibrillated cellulose (MFC), comprising the steps of treating cellulosic fibres to remove at least a major part of the primary wall of the fibres, drying the treated fibres, rewetting the treated fibres, and disintegrating the wetted fibres by mechanical means to obtain the final product. Dried cellulosic pulp is produced as an intermediate product of the method, having an average fibre length of at least 0.4 mm, while less than 50% of the primary wall material of natural untreated fibres is left in the intermediate product. Instead of transporting large amounts of dilute MFC dispersion the invention enables transport of the dry intermediate product to the MFC end user, who would complete the process by turning the intermediate product to final MFC by use of standard disintegrating devices.

    Abstract translation: 一种用于生产高度精制或微纤化纤维素(MFC)的方法,包括以下步骤:处理纤维素纤维以去除纤维的主壁的至少主要部分,干燥经处理的纤维,再处理经处理的纤维,以及分解 润湿纤维通过机械手段获得最终产品。 干纤维素浆是作为该方法的中间产物生产的,其平均纤维长度至少为0.4mm,而少于天然未处理纤维的初级壁材料的50%留在中间产品中。 代替运输大量稀释的MFC分散体,本发明使得能够将干燥的中间产物运输到MFC最终用户,MFC最终用户将通过使用标准的分解装置将中间产物转化成最终的MFC来完成该方法。

    Multilayer film comprising highly refined cellulose fibers

    公开(公告)号:US12258711B2

    公开(公告)日:2025-03-25

    申请号:US17995447

    申请日:2021-04-14

    Applicant: Stora Enso OYJ

    Abstract: The present invention relates to a method for manufacturing a multilayer film comprising highly refined cellulose fibers, the method comprising the steps of: a) forming a first wet web by applying a first pulp suspension comprising highly refined cellulose fibers on a first wire; b) partially dewatering the first wet web to obtain a first partially dewatered web; c) forming a second wet web by applying a foamed second pulp suspension comprising highly refined cellulose fibers and a foaming agent on a second wire; d) partially dewatering the foamed second wet web to obtain a second partially dewatered web; e) joining the first and second partially dewatered web to obtain a multilayer web; and f) further dewatering, and optionally drying, the multilayer web to obtain a multilayer film comprising highly refined cellulose fibers.

    A METHOD FOR PRODUCING A FILM COMPRISING MICROFIBRILLATED CELLULOSE, AND A FILM COMPRISING MICROFIBRILLATED CELLULOSE

    公开(公告)号:US20240376670A1

    公开(公告)日:2024-11-14

    申请号:US18690070

    申请日:2022-08-31

    Applicant: Stora Enso OYJ

    Abstract: The present invention relates to a method for producing a film comprising microfibrillated cellulose, which comprises: providing a suspension comprising 30-100 weight-% microfibrillated cellulose based on total dry weight: forming a wet web of said suspension by casting on a support being a non-porous support, paper or paperboard: wet-pressing said wet web to form a dewatered web, which comprises applying a press fabric into direct contact with said wet web and conducting said wet web, arranged between said press fabric and said non-porous support, through a pressing equipment: smoothening said dewatered web by applying at least one smoothing press to said dewatered web arranged on said non-porous support so as to form a smoothened web, wherein a pressure of 0.1-25 MPa is applied in each smoothing press, wherein said dewatered web has a dry content of 20-60% by weight when applying said smoothing press(es), and drying said smoothened web to form said film. The invention further relates to a film.

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