公开(公告)号：SE2051028A1

公开(公告)日：2022-03-02

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

IPC: D21H25/04 ,  D21H11/18 ,  D21H27/00

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.

公开(公告)号：SE544193C2

公开(公告)日：2022-02-22

申请号：SE2050770

申请日：2020-06-26

Applicant: STORA ENSO OYJ

Inventor： KAUPPI ANNA ,  HEISKANEN ISTO ,  KORVENNIEMI JUHA ,  KANKKUNEN JUKKA ,  BACKFOLK KAJ ,  HJERPE MIKAEL

IPC: D21H11/18 ,  B82Y30/00 ,  C08J5/18 ,  D21F3/02

Abstract: The present invention relates to a method for dewatering a web comprising microfibrillated cellulose, wherein the method comprises the steps of: providing a suspension comprising between 50 wt-% to 100 wt-% of microfibrillated cellulose based on total dry weight, forming a fibrous web of said suspension on a support wherein said web has a dry content of 1-25% by weight, applying a dewatering felt into direct contact with the fibrous web, conducting said fibrous web, arranged between said dewatering felt and said support, through at least one shoe press, drying the dewatered web to form a film which film has an Oxygen Transmission Rate (OTR) value (23°C, 50% RH) below 100 cc/m2/24h according to ASTM D-3985.

公开(公告)号：SE538085C2

公开(公告)日：2016-03-01

申请号：SE1251280

申请日：2012-11-09

Applicant: STORA ENSO OYJ

Inventor： BACKFOLK KAJ ,  SAXELL HEIDI ,  HEISKANEN ISTO ,  AXRUP LARS ,  HENSDAL CECILIA LAND ,  JOKELA VEIKKO ,  KOTILAINEN ARI ,  KASTINEN HENRI ,  KAUPPI ANNA ,  SAUKKONEN ESA

IPC: D21H11/18 ,  C08L1/04 ,  D21C9/06 ,  D21C9/18 ,  F26B3/36

公开(公告)号：SE1350512A1

公开(公告)日：2014-10-26

申请号：SE1350512

申请日：2013-04-25

Applicant: STORA ENSO OYJ

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

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

公开(公告)号：SE1251281A1

公开(公告)日：2014-05-10

申请号：SE1251281

申请日：2012-11-09

Applicant: STORA ENSO OYJ

Inventor： BACKFOLK KAJ ,  SAXELL HEIDI ,  HEISKANEN ISTO ,  AXRUP LARS ,  JOKELA VEIKKO ,  KASTINEN HENRI ,  KAUPPI ANNA ,  RUOHONIEMI NINA ,  LAITINEN RISTO ,  LAUKALA TEIJA

IPC: D21H11/18 ,  C08B15/02 ,  C08L1/04 ,  D21H17/64 ,  D21H17/67

公开(公告)号：SE1251280A1

公开(公告)日：2014-05-10

申请号：SE1251280

申请日：2012-11-09

Applicant: STORA ENSO OYJ

Inventor： BACKFOLK KAJ ,  SAXELL HEIDI ,  HEISKANEN ISTO ,  AXRUP LARS ,  HENSDAL CECILIA LAND ,  JOKELA VEIKKO ,  KOTILAINEN ARI ,  KASTINEN HENRI ,  KAUPPI ANNA ,  SAUKKONEN ESA

IPC: D21H11/18 ,  C08L1/04 ,  D21C9/06 ,  D21C9/18 ,  F26B3/36

公开(公告)号：SE547023C2

公开(公告)日：2025-04-01

申请号：SE2230361

申请日：2022-11-11

Applicant: STORA ENSO OYJ

Inventor： KAUPPI ANNA ,  HEISKANEN ISTO ,  KORVENNIEMI JUHA ,  BACKFOLK KAJ

IPC: C08J5/18 ,  B32B27/10 ,  B32B29/00 ,  D21H11/18 ,  D21H27/38

Abstract: The present invention relates to a multilayer barrier film for a paper or paperboard packaging material, said barrier film comprises a first layer comprising a furnish comprising at least 70 wt-% of highly refined cellulose based on the total fiber content of the first layer, a second layer comprising a furnish comprising cellulosic fibers and less than 50 wt-% of highly refined cellulose based on the total fiber content of the second layer and more than 10 wt-% of filler, wherein the multilayer barrier film has a tear index GM above 4.5. The present invention further relates to a paper and paperboard based packaging material comprising such multilayer barrier film and to methods for manufacturing such multilayer barrier film.

公开(公告)号：SE546733C2

公开(公告)日：2025-02-11

申请号：SE2230363

申请日：2022-11-11

Applicant: STORA ENSO OYJ

Inventor： KAUPPI ANNA ,  HEISKANEN ISTO ,  KORVENNIEMI JUHA ,  BACKFOLK KAJ

IPC: C08J5/18 ,  B32B27/10 ,  B32B29/00 ,  C08L1/02 ,  D21H11/18 ,  D21H27/38

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.

公开(公告)号：SE2230362A1

公开(公告)日：2024-05-12

申请号：SE2230362

申请日：2022-11-11

Applicant: STORA ENSO OYJ

Inventor： KAUPPI ANNA ,  HEISKANEN ISTO ,  BACKFOLK KAJ

IPC: C08J5/18 ,  B32B27/10 ,  B32B29/00 ,  D21H11/18 ,  D21H27/38

Abstract: The present invention relates to a multilayer barrier film for a paper or paperboard packaging material, said barrier film comprises a first layer comprising a furnish comprising at least 70 wt-% of highly refined cellulose based on the total fiber content of the first layer, a second layer comprising a furnish comprising cellulosic fibers and less than 50 wt-% of highly refined cellulose based on the total fiber content of the second layer wherein the multilayer barrier film has an air permeance above 1000 pm/Pas and a tear index GM above 4.5. The present invention further relates to a paper and paperboard based packaging material comprising such multilayer barrier film and to methods for manufacturing such multilayer barrier film.

公开(公告)号：SE544670C2

公开(公告)日：2022-10-11

申请号：SE2050424

申请日：2020-04-15

Applicant: STORA ENSO OYJ

Inventor： KAUPPI ANNA ,  HEISKANEN ISTO ,  KANKKUNEN JUKKA ,  BACKFOLK KAJ

IPC: C08J5/18 ,  B32B29/02 ,  B82Y30/00 ,  C08L1/02 ,  D21F1/00 ,  D21F11/04 ,  D21H11/18 ,  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.