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1.
公开(公告)号:US11479917B2
公开(公告)日:2022-10-25
申请号:US15125616
申请日:2015-03-13
申请人: Stora Enso OYJ
发明人: Nina Miikki , Petri Sirvió , Kaj Backfolk
IPC分类号: D21H27/10 , B32B27/10 , B32B27/36 , D21H19/10 , B32B7/12 , D21H21/18 , D21H19/82 , D21H19/52 , D21H19/84 , B41M5/00 , B41M7/00 , B41M5/52 , B65D65/40 , B32B27/32 , D21H19/14 , D21H19/34 , D21H23/70
摘要: The invention refers to a method to produce a packaging material comprising the steps of; treating at least one surface of a paperboard substrate with a binder and with a metal salt, printing at least a part of said treated surface with ink, and applying at least one polymer layer on said printed surface. The packaging material produced in accordance with the invention shows good printability and simultaneously good adhesion of the applied polymer layer.
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公开(公告)号:US11458714B2
公开(公告)日:2022-10-04
申请号:US16955900
申请日:2018-12-19
申请人: Stora Enso OYJ
发明人: Kaj Backfolk , Isto Heiskanen , Esa Saukkonen , Jukka Kankkunen
IPC分类号: B32B27/32 , B29C65/32 , B29C65/36 , B32B27/12 , D21H11/18 , D21H19/22 , D21H19/80 , D21H27/10 , B29C65/00
摘要: The present invention is directed to a packaging material free from aluminium in the form of a continuous foil or film, comprising a layer of microfibrillated cellulose (MFC), wherein the layer comprising MFC has been laminated or coated on at least one side with a heat-sealable material. The MFC layer contains at least 60% by weight of microfibrillated cellulose. The present invention is also directed to a method for induction sealing, wherein a packaging material to be heat-sealed by induction is placed against an induction heating surface.
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公开(公告)号:US20210108110A1
公开(公告)日:2021-04-15
申请号:US17050196
申请日:2019-04-25
申请人: Stora Enso OYJ
发明人: Kaj Backfolk , Isto Heiskanen , Esa Saukkonen
摘要: The present invention relates a method for the production of an adhesive wherein said method comprise the following steps: providing a suspension comprising starch, swelling the starch by alkali or temperature treatment or by cooking the starch suspension to form a starch suspension, providing a suspension comprising microfibrillated cellulose which suspension has a solid content above 10%-by weight, adding the suspension comprising microfibrillated cellulose to the suspension comprising starch either before or during the swelling or the cooking of the starch or to the formed starch suspension to produce the adhesive. The invention further relates to a corrugated board and an adhesive.
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公开(公告)号:US20210095424A1
公开(公告)日:2021-04-01
申请号:US16955470
申请日:2018-12-17
申请人: Stora Enso OYJ
发明人: Kaj Backfolk , Isto Heiskanen , Esa Saukkonen , Katja Lyytikäinen
IPC分类号: D21H11/18 , D21H21/08 , D21H17/45 , D21H17/42 , D21H17/32 , D21H23/04 , D21F1/00 , B32B27/10 , B32B27/32
摘要: A method for the production of a fibrous product from a fibrous web, wherein the method comprises the steps of: —providing a fibrous suspension comprising a microfibrillated cellulose, wherein the content of the microfibrillated cellulose of said suspension is in the range of 60 to 99.9 weight-% based on total dry solid content, —adding an uncharged, amphoteric or weakly cationic polymer having a molecular weight of at least 50000 g/mol to said suspension, —adding an anionic polymer having a molecular weight of at least 00000 g/mol to said suspension to provide a mixture of said microfibrillated cellulose, said uncharged, amphoteric or weakly cationic polymer and said anionic polymer, 1—providing said mixture to a substrate to form a fibrous web, wherein the amount of uncharged, amphoteric or weakly cationic polymer in said mixture is in the range of 0.1 to 20 kg/metric ton based on total dry solid content and wherein the amount of anionic polymer in said mixture is in the range of 0.01 to 10 kg/metric ton based on total dry 20 solid content; and—dewatering said fibrous web to form a fibrous product.
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公开(公告)号:US10927504B2
公开(公告)日:2021-02-23
申请号:US16312449
申请日:2017-06-20
申请人: Stora Enso OYJ
发明人: Kaj Backfolk , Isto Heiskanen , Esa Saukkonen
IPC分类号: D21H15/10 , D21H27/10 , B32B27/36 , D21H27/38 , B32B7/12 , D21H11/18 , B32B27/10 , B32B27/32 , D21F1/10 , D21G1/00 , D21H17/24 , D21H17/68 , D21H19/22 , D21H19/82 , D21H21/06 , B23B29/00 , B65D81/34 , B65D65/38 , B32B29/00
摘要: A method of producing a microfibrillated cellulose (MFC) film comprising reinforcement fibers. The method includes: providing a suspension comprising a first MFC in an amount of at least 50 weight %, reinforcement fibers in an amount of at least 5 weight %, all percentages calculated on the total solid content of said suspension, and a formation aid; mixing said suspension to form a mixture; forming a fibrous web from the mixture; and dewatering and/or drying said fibrous web to form a film having a basis weight of less than 40 g/m2, a specific formation number of below 0.45 g0.5/m2, and an Oxygen Transmission Rate (OTR) value of below 100 ml/m2/per 24 hours, preferably of below 50 ml/m2per 24 hours at 50% relative humidity. Also, a film and use of the film in food or liquid packaging applications.
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公开(公告)号:US10927503B2
公开(公告)日:2021-02-23
申请号:US16345348
申请日:2017-10-27
申请人: Stora Enso OYJ
发明人: Kaj Backfolk , Isto Heiskanen , Esa Saukkonen
摘要: The invention discloses a method to enable the efficient use of surfactants in web forming of a cellulose containing material, e.g. in the making of paper or paperboard. The method comprises the addition of microfibrillated cellulose (MFC) or nanocrystalline cellulose (NCC) to the white water in a web-forming process in order to form complexes with surface active agents. The formed complexes are at least partly recycled to the process. This enables the producer to have control over the concentration of surface active agents in the system.
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7.
公开(公告)号:US10787770B2
公开(公告)日:2020-09-29
申请号:US16346002
申请日:2017-10-31
申请人: Stora Enso OYJ
发明人: Isto Heiskanen , Seppo Lampainen , Kaj Backfolk , Esa Saukkonen , Jukka Kankkunen , Christian Aulin , Astrid Odeberg Glasenapp
IPC分类号: D21H27/40 , C09J5/06 , C09J101/02 , C09J103/02
摘要: The present invention relates to a corrugated board comprising an adhesive arranged to attach a fluted corrugated medium to a liner wherein the adhesive comprises starch and microfibrillated cellulose. The invention also relates to a method to produce said corrugated board.
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公开(公告)号:US10752741B2
公开(公告)日:2020-08-25
申请号:US16302813
申请日:2017-05-15
申请人: Stora Enso OYJ
发明人: Isto Heiskanen , Katja Lyytikäinen , Esa Saukkonen , Kaj Backfolk
IPC分类号: C08J5/18 , A61K8/73 , A61Q17/04 , C08J5/04 , C09D5/32 , D21H11/02 , D21H11/08 , D21H11/18 , D21H21/16 , D21H19/34 , C08L1/02 , D21H19/52 , D21H11/12 , A61K8/02 , D21H19/38 , D21H21/14 , D21H17/67 , D21H11/10
摘要: The present invention relates to an UV blocking film comprising microfibrillated cellulose wherein at least part of the microfibrillated cellulose is microfibrillated cellulose produced from non-chemical modified lignocellulosic material. The invention also relates to a method for producing the film, use of said film as well as a composition having UV blocking properties.
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公开(公告)号:US10577747B2
公开(公告)日:2020-03-03
申请号:US15754870
申请日:2016-09-16
申请人: Stora Enso OYJ
发明人: Isto Heiskanen , Kaj Backfolk
IPC分类号: D21H11/18 , D21H21/20 , D21H17/32 , D21H17/37 , B32B27/10 , D21H21/10 , D21H17/22 , D21H17/28 , D21H17/24 , D21H17/31
摘要: A method for the production of a film from a fibrous web, wherein the method comprises the steps of: providing a fibrous suspension comprising a microfibrillated cellulose, wherein the content of the microfibrillated cellulose of said suspension is in the range of 60 to 99.9 weight-% based on total dry solid content, adding an amphoteric polymer to said suspension to provide a mixture of said microfibrillated cellulose and said amphoteric polymer, providing said mixture to a substrate to form a fibrous web, wherein the amount of amphoteric polymer in said mixture is in the range of 0.1 to 20 kg/metric ton based on total dry solid content; and dewatering said fibrous web to form a film having a basis weight of less than 40 g/m2 and a density in the range of from 700 to 1000 kg/m3.
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公开(公告)号:US10435842B2
公开(公告)日:2019-10-08
申请号:US15758963
申请日:2016-09-16
申请人: Stora Enso OYJ
发明人: Isto Heiskanen , Kaj Backfolk , Esa Saukkonen
摘要: A method for manufacturing a film, wherein said film has a basis weight of less than 50 g/m2 and wherein the density of the film is higher than 750 kg/m2 comprising the steps of: providing a suspension comprising microfibrillated cellulose (MFC); forming a web of said suspension on a porous wire, microfibrillated cellulose (MFC); surface sizing said web, wherein the web, at the beginning of the surface sizing step, has a moisture content in the range of from 10 to 50 wt-%; drying said surface sized web to a final moisture content of between 0.1-20 wt-% to form said film.
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