公开(公告)号：FI20050225A0

公开(公告)日：2005-02-25

申请号：FI20050225

申请日：2005-02-25

Applicant: STORA ENSO OYJ

Inventor： BACKFOLK KAJ ,  HEISKANEN ISTO ,  NEVALAINEN KIMMO ,  PENTTINEN TAPANI ,  PELTOLA MINNA ,  HARLIN ALI

IPC: C09D20060101 ,  D04H3/16 ,  D21H19/82 ,  D21H23/50 ,  C09D

Abstract: The invention relates to a method for priming a substrate by contacting the substrate with a primer fed from a primer source and depositing the primer on the substrate. Compared to other priming methods, the claimed priming gives better results because the deposition is carried out electrostatically.

公开(公告)号：SE547135C2

公开(公告)日：2025-04-29

申请号：SE2330129

申请日：2023-03-20

Applicant: STORA ENSO OYJ

Inventor： NYFLÖTT ÅSA ,  CUNHA GISELA ,  BACKFOLK KAJ ,  KISHANI SAINA

IPC: C09D167/00 ,  B32B29/00 ,  C09D7/40 ,  C09K23/00 ,  D21H19/12 ,  D21H19/28

Abstract: The present invention relates to a dispersion coating composition for coating of a fiber-based substrate, said dispersion coating composition comprising, in a liquid medium: 50-99 wt% of PHA (polyhydroxyalkanoate) particles, based on the total solid content of the dispersion coating composition, and 1-50 wt% of low molecular weight polyol dispersant, based on the total solid content of the dispersion coating composition, wherein the dispersion coating composition has a total solid content in the range of 20-80 wt%. The present invention further relates to a fiber-based substrate coated with such a dispersion coating composition and to a packaging container comprising such a dispersion coated fiber-based substrate.

公开(公告)号：SE546910C2

公开(公告)日：2025-03-11

申请号：SE2330313

申请日：2023-07-05

Applicant: STORA ENSO OYJ

Inventor： KARPPINEN ANNI ,  BACKFOLK KAJ ,  NYLÉN OTTO

IPC: D21F1/66 ,  C08B15/02 ,  C08B15/08 ,  C08L1/02 ,  D21F3/02 ,  D21H11/14 ,  D21H11/18

Abstract: The present invention relates to a method for producing a microfibrillated cellulose (MFC) web. The method comprises preparing an MFC suspension (2) and forming a wet MFC web (7) from the MFC suspension by casting on a non-porous support (8). The wet MFC web positioned on the non-porous support is subjected to water removal by means of dewatering and/or drying to form a dry MFC web (11). Broke material is discharged and collected. Collected broke material (13, 20) is mixed with water to provide at least one broke suspension (16, 22) wherein at least 90 weight-% of each broke suspension passes a Mesh 30 screen according to SCAN-CM 66:05. The broke suspension(s) is/are subjected to a mechanical treatment. The broke suspension(s) is/are used in the preparation of the MFC suspension. The mechanical treatment is performed to increase the viscosity of the broke suspension(s) to at least 60% of the viscosity of the MFC suspension without the broke suspension(s).

公开(公告)号：SE546839C2

公开(公告)日：2025-02-25

申请号：SE2330311

申请日：2023-07-05

Applicant: STORA ENSO OYJ

Inventor： MOBERG ANDERS ,  BACKFOLK KAJ

IPC: D21H27/38 ,  B32B29/00 ,  D21F3/02 ,  D21F11/00 ,  D21H11/08 ,  D21H11/10 ,  D21H11/18 ,  D21H21/18

Abstract: The invention discloses a method for manufacturing a multiply paperboard comprising the steps of:- forming a web comprising at least a top ply, a back ply, and a middle ply arranged between the top ply and the back ply, wherein the middle ply is formed from a first furnish comprising at least 50 wt% of a HT-CTMP and 0.1 - 10 wt% of glue pulp based on the total dry weight of said first furnish, wherein said glue pulp has a Schopper Riegler (SR) value in the range of 55- 84 as measured according to standard ISO 5267-1 and a mass fraction of fines of less than 25% as measured according to standard ISO 10376:2011,- subjecting the thereof formed three-ply web to pressing in at least one shoe press, and- drying the web.It has been found that the combination of using the said furnish mixture including HT-CTMP and glue pulp with an SR value within said range enables efficient dewatering by use of a shoe press and gives rise to a paperboard with high bulk but maintained or improved strength properties.

公开(公告)号：SE546815C2

公开(公告)日：2025-02-25

申请号：SE2151330

申请日：2021-10-29

Applicant: STORA ENSO OYJ

Inventor： LJUNGQVIST CARL-HENRIK ,  BACKFOLK KAJ ,  TOLLNERIUS LENA

IPC: D21B1/32 ,  B32B27/10 ,  D21B1/02

Abstract: The present invention relates to a method for manufacturing a purified fiber fraction from used beverage carton (UBC), said method comprising the steps:a) subjecting UBC starting material to a polymer and aluminum film separation method to obtain a UBC polymer and aluminum fraction and a raw UBC fiber fraction;b) optionally subjecting the raw UBC fiber fraction to a coarse screening method to remove coarse particles;c) subjecting the raw UBC fiber fraction to a fine screening method to remove cellulose fines and fine particulate contaminants, wherein the fine screening method comprises at least one fine screening step and at least one washing step; d) optionally subjecting the fine screened UBC fiber fraction to a washing method to remove further contaminants;e) optionally subjecting the fine screened UBC fiber fraction to a bleaching method;f) subjecting the fine screened, and optionally bleached, UBC fiber fraction to a dewatering method to a consistency of at least 20 wt%; andg) subjecting the dewatered UBC fiber fraction to deactivation to obtain a purified UBC fiber fraction.

公开(公告)号：SE2330297A1

公开(公告)日：2024-12-28

申请号：SE2330297

申请日：2023-06-27

Applicant: STORA ENSO OYJ

Inventor： NYFLOTT ÅSA ,  SHOKRI EBRAHIM ,  CUNHA GISELA ,  BACKFOLK KAJ

IPC: B32B27/36 ,  B32B27/08 ,  B32B27/10 ,  B32B29/00 ,  D21H19/82

Abstract: A B S TR A C TA multilayer coated laminate (1) comprising a substrate (2) with a first side (2a) and a second side (2b). The laminate further comprises a co-extrusion coated tie layer (3) which is coated on first side (2a) of the substrate, wherein the tie layer comprising PVAc and/or PBSA, which tie layer has a thickness of 1-10 μm, preferably 2-7 μm; and a PHA layer (4), preferably PHBH, which is co-extrusion coated on the tie layer, the PHA layer has a thickness of 5-25 μm, preferably 10-15 μm.

公开(公告)号：SE546586C2

公开(公告)日：2024-12-10

申请号：SE2330156

申请日：2023-04-11

Applicant: STORA ENSO OYJ

Inventor： BACKFOLK KAJ

IPC: D21H11/18 ,  B32B29/02 ,  B32B37/00 ,  B32B37/14 ,  C08B15/02 ,  C08B15/08 ,  C08J5/18 ,  C08L1/02 ,  C09D101/02 ,  D21C9/00 ,  D21H19/10 ,  D21H19/80 ,  D21H27/30

Abstract: The invention discloses a method for manufacturing a barrier film comprising highly refined cellulose, the method comprising the steps of: a) providing a web comprising at least 50 % of highly refined cellulose having a Schopper-Riegler (SR) value in the range of 80 – 100, which web has a density in the range of 700-1500 kg/m3, and a wet tensile strength retention (MD) of less than 15%, b) applying an aqueous-based solution or dispersion comprising a polymer on the web, which aqueous based solution or dispersion has a solid content of between 5 – 50 wt%, and c) drying the web applied with the aqueous-based solution or dispersion to a solid content of at least 80 wt%, thereby forming the film.

公开(公告)号：SE2330067A1

公开(公告)日：2024-08-08

申请号：SE2330067

申请日：2023-02-07

Applicant: STORA ENSO OYJ

Inventor： KARPPINEN ANNI ,  BACKFOLK KAJ ,  NYLÉN OTTO

IPC: B32B29/00 ,  C08L1/02 ,  C09J5/06 ,  C09J5/08 ,  C09J101/02 ,  D21H11/18 ,  D21H19/00

Abstract: The present invention relates to a method for manufacturing a paper or paperboard based packaging laminate, said method comprising:a) providing a paper or paperboard substrate,b) providing a microfibrillated cellulose (MFC) film comprising at least 50 wt% of MFC based on the dry weight of the MFC film, andc) laminating a surface of the paper or paperboard substrate to a surface of the MFC film by a melt adhesive process using a melt adhesive comprising at least 50 wt% of a water soluble thermoplastic polymer based on the dry weight of the melt adhesive, wherein the melt adhesive is applied to the surface of the paper or paperboard substrate and/or to the surface of the MFC film in a low solvent or solvent free form.

公开(公告)号：BR112023012541A2

公开(公告)日：2023-10-24

申请号：BR112023012541

申请日：2021-12-14

Applicant: STORA ENSO OYJ

Inventor： ANNA NYBERG ZETTERLUND ,  HEISKANEN ISTO ,  KANKKUNEN JUKKA ,  BACKFOLK KAJ

IPC: B32B7/12 ,  B32B9/06 ,  B32B27/10 ,  B32B37/12 ,  C08J5/18 ,  C09J5/04 ,  C09J123/04 ,  C09J125/04 ,  C09J127/06 ,  C09J131/04 ,  C09J133/04 ,  D21H11/18 ,  D21H27/30 ,  D21H27/32 ,  D21H27/34

Abstract: laminados. a presente invenção se refere a materiais de embalagem na forma de laminados compreendendo um substrato de papel ou papelão e uma película de barreira. a película de barreira é baseada sobre celulose microfibrilada. o laminado compreende um substrato de papel ou papelão, em que o substrato está em contato com uma primeira camada de adesivo, que está em contato com uma segunda camada de adesivo, que está em contato com a película de barreira. a presente invenção também se refere a métodos para fabricação de tais laminados.

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.