公开(公告)号：EP2989247A4

公开(公告)日：2016-11-23

申请号：EP14788480

申请日：2014-04-22

Applicant: STORA ENSO OYJ

Inventor： HEISKANEN ISTO ,  SAUKKONEN ESA ,  BACKFOLK KAJ ,  KAUPPI ANNA ,  SAXELL HEIDI ,  LYYTIKÄINEN KATJA

IPC: D21H11/18 ,  C08B11/15 ,  D21H11/20 ,  D21H17/37 ,  D21H17/55

CPC classification number: D21H21/30 ,  C08L1/02 ,  C08L2205/16 ,  D21H11/04 ,  D21H11/18 ,  D21H17/375 ,  D21H17/42 ,  D21H21/28 ,  C08L33/26

Abstract: The invention relates to a process for treating cellulose fibres which process comprises the steps of providing a slurry comprising cellulose fibers, adding anionic polyacrylamide (A-PAM) with high molar mass to the slurry in a first step and subjecting the slurry comprising fibers and A-PAM to a mechanical treatment in a second step thereby forming a composition comprising microfibrillated cellulose. The invention further relates to a composition produced according to the process.

Abstract translation: 本发明涉及用于处理纤维素纤维，该方法包括提供浆料包含纤维素纤维的步骤的过程中，加入阴离子聚丙烯酰胺（A-PAM）与高摩尔质量，以在第一步骤中的浆料，使所述浆料包含纤维和 PAM以在第二步骤中机械处理，由此形成组合物，包含微纤化纤维素。 本发明还涉及到雅丁所述的工艺生产的组合物。

公开(公告)号：SE544892C2

公开(公告)日：2022-12-20

申请号：SE2050422

申请日：2020-04-15

Applicant: STORA ENSO OYJ

Inventor： HEISKANEN ISTO ,  BACKFOLK KAJ ,  LYYTIKÄINEN KATJA

IPC: C08J5/18 ,  B32B29/02 ,  B82Y30/00 ,  C07G1/00 ,  C08L1/02 ,  C08L97/00 ,  D21F1/00 ,  D21F11/04 ,  D21H11/18 ,  D21H21/16 ,  D21H27/30

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 second pulp suspension comprising highly refined cellulose fibers on a second wire; d) partially dewatering the 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; wherein at least one of said first and second pulp suspension comprises lignin at a concentration in the range of 0.1-50 wt%, based on the total dry weight of the pulp suspension.

公开(公告)号：SE2150737A1

公开(公告)日：2022-12-11

申请号：SE2150737

申请日：2021-06-10

Applicant: STORA ENSO OYJ

Inventor： HEISKANEN ISTO ,  BACKFOLK KAJ ,  LYYTIKÄINEN KATJA

IPC: C08J5/18 ,  B32B27/10 ,  D21H11/18 ,  D21H19/12 ,  D21H19/36

Abstract: The present invention relates to a biobased barrier film for a paper or paperboard-based packaging material, said barrier film comprising: a substrate layer and a coating layer disposed on at least one surface of the substrate layer, wherein said substrate layer has a grammage in the range of 1-60 g/m2 and comprises at least 50 wt% of highly refined cellulose pulp based on the dry weight of the substrate layer, and wherein said coating layer has a grammage in the range of 1-15 g/m2 and comprises at least 50 wt% of a film forming modified starch and 0.1-10 wt% of a biobased lubricant, based on the dry weight of the coating layer.

公开(公告)号：SE544080C2

公开(公告)日：2021-12-14

申请号：SE2050524

申请日：2020-05-07

Applicant: STORA ENSO OYJ

Inventor： HEISKANEN ISTO ,  BACKFOLK KAJ ,  LYYTIKÄINEN KATJA

IPC: D21H19/34 ,  C08B11/00 ,  C23C14/14 ,  C23C16/06 ,  D21H11/16 ,  D21H19/06 ,  D21H19/08 ,  D21H19/52 ,  D21H23/56

Abstract: The present invention is directed to a coated paper substrate that is particularly suitable for metallization and other nano-coatings that provide barrier properties and are applied using vacuum deposition techniques. The invention is also directed to a process for preparing the coated paper substrate. The invention is also directed to a packaging material comprising the coated paper substrate.

公开(公告)号：SE2050422A1

公开(公告)日：2021-10-16

申请号：SE2050422

申请日：2020-04-15

Applicant: STORA ENSO OYJ

Inventor： HEISKANEN ISTO ,  BACKFOLK KAJ ,  LYYTIKÄINEN KATJA

IPC: C08J5/18 ,  B32B29/02 ,  B82Y30/00 ,  C07G1/00 ,  C08L1/02 ,  C08L97/00 ,  D21F1/00 ,  D21F11/04 ,  D21H11/18 ,  D21H21/16 ,  D21H27/30

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 second pulp suspension comprising highly refined cellulose fibers on a second wire;d) partially dewatering the second wet web to obtain a second partially dewatered web;e) joining the first and second partially dewatered web to obtain a multilayer web; andf) further dewatering, and optionally drying, the multilayer web to obtain a multilayer film comprising highly refined cellulose fibers;wherein at least one of said first and second pulp suspension comprises lignin at a concentration in the range of 0.1-50 wt%, based on the total dry weight of the pulp suspension.

公开(公告)号：SE1951260A1

公开(公告)日：2021-05-05

申请号：SE1951260

申请日：2019-11-04

Applicant: STORA ENSO OYJ

Inventor： BONNERUP CHRIS ,  HEISKANEN ISTO ,  BACKFOLK KAJ ,  LYYTIKÄINEN KATJA

IPC: C09D101/28 ,  B32B27/10 ,  B32B29/00 ,  C08L1/28 ,  D21H19/12 ,  D21H19/34 ,  D21H19/52 ,  D21H21/16

Abstract: A method for reducing the surface oil absorption of cellulose based substrate is provided, in which a coating composition is applied to said substrate; and in which the coating composition comprises carboxymethyl cellulose (CMC) and/or a salt of carboxymethyl cellulose (CMC). A coated paperboard, and a laminate of the coated paperboard with a polymer layer is also provided. The coating composition provides improved surface oil absorption and improved adherence of an overlying polymer layer.

公开(公告)号：SE1951259A1

公开(公告)日：2021-05-05

申请号：SE1951259

申请日：2019-11-04

Applicant: STORA ENSO OYJ

Inventor： HEISKANEN ISTO ,  BACKFOLK KAJ ,  LYYTIKÄINEN KATJA ,  NYLÉN OTTO

IPC: D21H11/18 ,  B32B27/06 ,  B32B29/02 ,  B65D65/40 ,  B82Y30/00 ,  C08L29/04 ,  C09D101/00 ,  C09D101/02 ,  C09D103/00 ,  C09D105/00 ,  C09D129/04 ,  D21H19/00 ,  D21H19/10 ,  D21H19/12 ,  D21H19/20 ,  D21H19/34 ,  D21H19/82

Abstract: A barrier material comprising (a) at least one layer of cellulosic substrate comprising MFC, and (b) a first barrier layer arranged on at least one surface of said cellulosic substrate, is provided, as well as a method for reducing the water vapour transmission rate (WVTR) of a cellulosic substrate.

公开(公告)号：SE1950730A1

公开(公告)日：2020-12-18

申请号：SE1950730

申请日：2019-06-17

Applicant: STORA ENSO OYJ

Inventor： HEISKANEN ISTO ,  LYYTIKÄINEN KATJA ,  BACKFOLK KAJ ,  NYLÉN OTTO

IPC: D21H11/18 ,  B32B27/06 ,  C08J5/18 ,  C08L1/02 ,  D21H17/41 ,  D21H17/66

Abstract: 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 native microfibrillated cellulose, wherein the content of the microfibrillated cellulose of said suspension is in the range of 40 to 99.9 weight-% based on total dry solid content, said fibrous suspension further comprising organic acid, a metal salt or a mixture thereof, wherein the amount of organic acid, metal salt or mixture thereof is at least 2 weight-% based on total dry solid content of the suspension,- said fibrous suspension also comprising an uncharged, amphoteric or weakly cationic polymer having a molecular weight of at least 50000 g/mol,- said fibrous suspension also comprising an anionic polymer having a molecular weight of at least 10000 g/mol to said suspension, - providing said suspension to a substrate to form a fibrous web, wherein the amount of uncharged, amphoteric or weakly cationic polymer in said suspension 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 suspension is in the range of 0.01 to 10 kg/metric ton based on total dry solid content; and- dewatering said fibrous web to form a fibrous product.

公开(公告)号：SE1851645A1

公开(公告)日：2020-06-22

申请号：SE1851645

申请日：2018-12-21

Applicant: STORA ENSO OYJ

Inventor： CUNHA GISELA ,  HEISKANEN ISTO ,  BACKFOLK KAJ ,  LYYTIKÄINEN KATJA

IPC: C08J5/18 ,  B32B29/00 ,  B82Y30/00 ,  D21H11/18 ,  D21H17/66 ,  D21H19/10

Abstract: Methods are provided for preparing a surface-treated fibrous material comprising nanocellulose, in which a fibrous material is surface treated with a solution comprising at least one multivalent metal ion. Fibrous materials as such are also provided. Improved Water vapour Transmission rate (WVTR) properties can be achieved.

公开(公告)号：SE1751305A1

公开(公告)日：2019-04-21

申请号：SE1751305

申请日：2017-10-20

Applicant: STORA ENSO OYJ

Inventor： SAUKKONEN ESA ,  HEISKANEN ISTO ,  BACKFOLK KAJ ,  LYYTIKÄINEN KATJA

IPC: C08J5/18 ,  C12N9/24 ,  D21H11/18 ,  D21H11/20 ,  D21H17/00

Abstract: The present invention relates to a method for manufacturing a film comprising microfibrillated cellulose wherein the method comprises the steps of; providing a suspension comprising a microfibrillated cellulose, adding an enzyme to the suspension, mixing the enzyme with the suspension to form a mixture, applying said mixture to a substrate to form a fibrous web and drying said web to form said film. The present invention further relates to a film comprising microfibrillated cellulose having good barrier properties.