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公开(公告)号：SE546304C2
公开(公告)日：2024-10-01
申请号：SE2250127
申请日：2022-02-10
Applicant: STORA ENSO OYJ
Inventor： HEISKANEN ISTO , BACKFOLK KAJ , LYYTIKÄINEN KATJA
Abstract: The present invention relates to a method for preparing a surface-treated gas barrier film, said method comprising the steps of: a) providing a gas barrier substrate comprising at least 50 wt% of a highly refined cellulose pulp based on dry weight; and b) surface treatment of the gas barrier substrate, wherein the surface treatment comprises treating a surface of the gas barrier substrate with a solution comprising an organic acid and sodium carbonate and drying the gas barrier substrate to obtain a surface-treated gas barrier film. The invention further relates to a surface-treated gas barrier film obtained according to the method and a packaging laminate comprising the surface-treated gas barrier film.
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公开(公告)号：SE2230363A1
公开(公告)日：2024-05-12
申请号：SE2230363
申请日：2022-11-11
Applicant: STORA ENSO OYJ
Inventor： KAUPPI ANNA , HEISKANEN ISTO , KORVENNIEMI JUHA , BACKFOLK KAJ
Abstract: The present invention relates to a barrier film for a paper or paperboard-based packaging material, said barrier film comprising cellulosic fibers and highly refined cellulose wherein the barrier film comprises less than 50 wt-% of highly refined cellulose based on the total fiber content and the barrier film having an air permeance above 2000 pm/Pas and a geometric mean tensile index above 70 Nm/g. The invention also relates to a paper or paperboard-based packaging material comprising the barrier film and a method for producing said film.
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133.发明专利
公开(公告)号：SE545733C2
公开(公告)日：2023-12-27
申请号：SE2051028
申请日：2020-09-01
Applicant: STORA ENSO OYJ
Inventor： KAUPPI ANNA , HEISKANEN ISTO , KORVENNIEMI JUHA , KANKKUNEN JUKKA , BACKFOLK KAJ
Abstract: The present invention relates to a method for producing a machine glazed paper comprising microfibrillated cellulose, wherein the method comprises the steps of: providing a suspension comprising between 0.1 wt-% to 50 wt-% of microfibrillated cellulose based on total dry weight, forming a fibrous web of said suspension on a wire wherein said web has a dry content of 1-25% by weight, dewatering the fibrous web in at least one dewatering unit, glazing at least one side of the dewatered fibrous web in a glazing unit to form the machine glazed paper. The invention further relates to a MG paper produced according to the method.
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134.发明专利
公开(公告)号：SE544848C2
公开(公告)日：2022-12-13
申请号：SE2050622
申请日：2020-06-01
Applicant: STORA ENSO OYJ
Inventor： HEISKANEN ISTO , BACKFOLK KAJ , LYYTIKÄINEN KATJA
IPC: C09J103/02 , C09J11/08 , C09J101/02
Abstract: The present invention relates to a method for the production of an adhesive component wherein said method comprises the following steps: providing a suspension comprising starch granules, adding a suspension comprising microfibrillated cellulose to the suspension comprising starch granules, drying the starch granules and microfibrillated cellulose suspension to a dry content above 70 wt-% to form said adhesive component. The invention also relates to an adhesive, a corrugated board, paper and paperboard comprising said adhesive and to the adhesive component produced according to the method.
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公开(公告)号：SE2150272A1
公开(公告)日：2022-09-11
申请号：SE2150272
申请日：2021-03-10
Applicant: STORA ENSO OYJ
Inventor： MOBERG ANDERS , HEISKANEN ISTO , KANKKUNEN JUKKA , BACKFOLK KAJ , LYYTIKÄINEN KATJA
Abstract: The present invention relates to a method for manufacturing a barrier film comprising highly refined cellulose, said method comprising:a) providing a highly refined cellulose pulp suspension comprising highly refined cellulose pulp having a Schopper-Riegler (SR) number in the range of 40-98 as determined by standard ISO 5267-1, at a consistency in the range of 0.1-1.5 wt%; b) forming a web of the highly refined cellulose pulp suspension and dewatering the web in a paper machine former to a consistency of at least 5 wt% to obtain a substrate web, wherein the white water removed from the pulp contains 2-50 wt%, preferably 5-40 wt% and more preferably at least 10-30 wt% of the solids of the highly refined cellulose pulp suspension provided in step a);c) optionally further dewatering and optionally drying the substrate web;d) coating the optionally further dewatered and optionally dried substrate web with a coating suspension comprising cellulose fines or MFC to obtain a coated web; ande) dewatering and/or drying the coated web to obtain a barrier film comprising highly refined cellulose.
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Patent Agency Ranking
公开(公告)号：CA3081813C
公开(公告)日：2022-08-16
申请号：CA3081813
申请日：2018-12-19
Applicant: STORA ENSO OYJ
Inventor： BACKFOLK KAJ , HEISKANEN ISTO , SAUKKONEN ESA , KANKKUNEN JUKKA
Abstract: 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：CA3205025A1
公开(公告)日：2022-06-30
申请号：CA3205025
申请日：2021-12-14
Applicant: STORA ENSO OYJ
Inventor： BACKFOLK KAJ , HEISKANEN ISTO , KANKKUNEN JUKKA , NYBERG ZETTERLUND ANNA
IPC: D21H11/18 , B32B7/12 , B32B9/06 , B32B27/10 , B32B37/12 , C08J5/18 , C09J5/04 , C09J123/04 , C09J125/04 , C09J127/06 , C09J131/04 , C09J133/04 , D21H27/30 , D21H27/32 , D21H27/34
Abstract: The present invention relates to packaging materials in the form of laminates comprising a paper or paperboard substrate and a barrier film. The barrier film is based on microfibrillated cellulose. The laminate comprises a paper or paperboard substrate, wherein the substrate is in contact with a first adhesive layer, which is in contact with a second adhesive layer, which is in contact with the barrier film. The present invention also relates to methods for manufacturing such laminates.
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公开(公告)号：SE2051348A1
公开(公告)日：2022-05-19
申请号：SE2051348
申请日：2020-11-18
Applicant: STORA ENSO OYJ
Inventor： HEISKANEN ISTO , KANKKUNEN JUKKA , BACKFOLK KAJ , LYYTIKÄINEN KATJA
Abstract: The present invention relates to a barrier film for a paper or paperboard-based packaging material, said barrier film comprising: a substrate; a vacuum coating layer having a thickness in the range of 1-500 nm disposed on the substrate; and a protective coating layer comprising a crossl inked water-soluble polymer disposed on the vacuum coating layer. The present invention further relates to a paper or paperboard based packaging material and containers comprising the barrier film, and to a method for manufacturing the barrier film.
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139.发明专利
公开(公告)号：ES2905449T3
公开(公告)日：2022-04-08
申请号：ES17788916
申请日：2017-04-26
Applicant: STORA ENSO OYJ
Inventor： BACKFOLK KAJ , HEISKANEN ISTO , SAUKKONEN ESA , KANKKUNEN JUKKA
IPC: D21H19/10
Abstract: Una película termosellable que es compostable de acuerdo con la norma ISO 18606, que comprende una película base que tiene un gramaje de 5-50 gsm y un grosor de 10-100 μm, que ha sido recubierta en al menos un lado con un recubrimiento en forma de barniz al agua, resina o una cera que mejora las propiedades de barrera contra gases y/o humedad, en donde la película base comprende un material de fibra y al menos el 60 % en peso de dicho material de fibra es celulosa microfibrilada con al menos una dimensión inferior a 100 nm, y el grosor del recubrimiento es de 0,05 a 20 μm, por lado de la película base.
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公开(公告)号：PL3449056T3
公开(公告)日：2022-04-04
申请号：PL17788916
申请日：2017-04-26
Applicant: STORA ENSO OYJ
Inventor： BACKFOLK KAJ , HEISKANEN ISTO , SAUKKONEN ESA , KANKKUNEN JUKKA
IPC: D21H19/10
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