公开(公告)号：CA2784232A1

公开(公告)日：2011-06-30

申请号：CA2784232

申请日：2010-12-20

Applicant: STORA ENSO OYJ

Inventor： AXTRUP LARS ,  HEISKANEN ISTO ,  BACKFOLK KAJ

IPC: B32B29/02 ,  B65D65/40 ,  D21H11/18 ,  D21H19/34 ,  D21H27/10

Abstract: The present invention relates to a paper or paperboard substrate having barrier properties which substrate comprises a first fiber based layer, a second layer comprising microfibrillated cellulose and a third layer comprising a polymer. The invention further relates to a process for the production of said substrate and a package formed of said substrate.

公开(公告)号：SE0950819A1

公开(公告)日：2011-05-04

申请号：SE0950819

申请日：2009-11-03

Applicant: STORA ENSO OYJ

Inventor： HEISKANEN ISTO ,  BACKFOLK KAJ ,  AXRUP LARS

IPC: D21H19/34 ,  C08L1/02 ,  C09D101/02

Abstract: Uppfinning hänför sig till ett bestruket fiberbaserat substrat innehållande en dispersionsbestrykning varvid dispersionsbestrykningen innehåller mikrofibrillerad cellulosa. Uppfinningen hänför sig även till en förpackning bildad av nämnda substrat, en dispersionsbestrykning och en process för tillverkning av nämnda substrat.

公开(公告)号：CA2767304A1

公开(公告)日：2011-01-13

申请号：CA2767304

申请日：2010-06-23

Applicant: STORA ENSO OYJ

Inventor： HEISKANEN ISTO ,  BACKFOLK KAJ ,  VEHVILAEINEN MARIANNA ,  KAMPPURI TAINA ,  NOUSIAINEN PERTTI

IPC: D21H11/20 ,  D21C9/00 ,  D21H11/18

Abstract: The invention relates to a process for producing microfibrillated cellulose which process comprises providing a slurry comprising cellulosic fibers, treating the slurry with an enzyme, mechanically treating the slurry so that the fibers are disintegrated wherein the mechanical treatment and the treatment with the enzyme is performed simultaneously in a single treatment step. In this way it is possible to produce MFC in an improved and energy efficient way. The invention further relates to microfibrillated cellulose produced according to the process.

公开(公告)号：CA2720750A1

公开(公告)日：2009-10-15

申请号：CA2720750

申请日：2009-04-08

Applicant: STORA ENSO OYJ

Inventor： HEISKANEN ISTO ,  MYLLYKANGAS JANNE ,  RAISANEN TIMO

IPC: D21H27/10 ,  B32B29/00 ,  B65D3/06 ,  B65D65/40 ,  D21H17/17 ,  D21H21/20

Abstract: The invention relates to a polymer-coated, heat-sealable liquid packaging board that resists solvents, such as strong alcoholic drinks, to a method of manufacturing the same and to a drinking cup made of the same. In the invention, resistance to solvents is achieved by lowering the raw edge penetration to the board. For this, the fibre base of the board contains at least 1.3 kg of hydrophobic size containing alkyl ketene dimer (AKD) per 1 tonne of dry matter, and at least 1.0 kg of wet- strength size per 1 tonne of dry matter, the density of the fibre base is 630-800 kg/m3 and the amount of heat-sealable polymer in the top layer is higher than the Bristow wheel roughness volume of the uncoated fibre base and/or at least 14 g/m2. When manufacturing the board, the AKD size, the length of the carbon chain of which is preferably at least C18, and the wet-strength size, such as polyamidoamine epichlorohydrin resin (PAAE), are added into the stock on the wire of the paper or board machine or before the same. At the same time, the pH of the tail water is adjusted so as to be alkaline, preferably to a value of over 9, whereby the pH of the water extract of the obtained board is in the order of about 7 or more. The drinking cup made of the board resists an ethanol solution of 30% by weight at 23°C for at least 1 h.

公开(公告)号：AU2004254075B2

公开(公告)日：2008-12-11

申请号：AU2004254075

申请日：2004-04-27

Applicant: STORA ENSO OYJ

Inventor： RAISANEN TIMO ,  HEISKANEN ISTO ,  KUJALA HARRI

IPC: D21H27/10 ,  B65D65/42

Abstract: The invention relates to a package intended for thermal treatment comprising a fiber-based packaging material treated with a hydrophobic size and comprising one or more layers for reduced water penetration outside and/or inside the fiber substrate. The package of the invention is characterized by the fiber substrate being treated with a combination of a wet-strength size, a hydrophobic size and an aluminum and/or calcium compound for increased heat resistance of the packaging material, and in that the ratio of hydrophobic size to the aluminium and/or calcium compound is 1:1-1:10.

公开(公告)号：FI118973B

公开(公告)日：2008-05-30

申请号：FI20060756

申请日：2006-08-24

Applicant: STORA ENSO OYJ

Inventor： HEISKANEN ISTO ,  BACKFOLK KAJ

IPC: D21H23/50 ,  B05B5/14

Abstract: Method for controlling contact area of a paper or board substrate or a product thereof, by depositing electrostatically a trace amount of particles comprising boundary lubricants to form one or more layers on the surface of the substrate. The boundary lubricants are deposited to the target surface solubilized or dispersed in a suitable solvent or carrier. The particles comprise an agent providing one or more effects selected from: lyophilicity, lyophobicity, hydrophobicity, hydrophilicity, lipophilicity, lipophobicity, oleophobicity, oleophilicity, and boundary lubrication. Also, a paper or board substrate treated according to the foregoing method. The use of electrostatic deposition of coating materials described herein gives improved control on contact and surface characteristics.

公开(公告)号：FI20060756A

公开(公告)日：2008-02-25

申请号：FI20060756

申请日：2006-08-24

Applicant: STORA ENSO OYJ

Inventor： HEISKANEN ISTO ,  BACKFOLK KAJ

IPC: D21H23/50 ,  B05B5/14

Abstract: Method for controlling contact area of a paper or board substrate or a product thereof, by depositing electrostatically a trace amount of particles comprising boundary lubricants to form one or more layers on the surface of the substrate. The boundary lubricants are deposited to the target surface solubilized or dispersed in a suitable solvent or carrier. The particles comprise an agent providing one or more effects selected from: lyophilicity, lyophobicity, hydrophobicity, hydrophilicity, lipophilicity, lipophobicity, oleophobicity, oleophilicity, and boundary lubrication. Also, a paper or board substrate treated according to the foregoing method. The use of electrostatic deposition of coating materials described herein gives improved control on contact and surface characteristics.

公开(公告)号：AU2004254075A1

公开(公告)日：2005-01-13

申请号：AU2004254075

申请日：2004-04-27

Applicant: STORA ENSO OYJ

Inventor： RAISANEN TIMO ,  HEISKANEN ISTO ,  KUJALA HARRI

IPC: D21H27/10 ,  B65D65/42

Abstract: The invention relates to a package intended for thermal treatment comprising a fiber-based packaging material treated with a hydrophobic size and comprising one or more layers for reduced water penetration outside and/or inside the fiber substrate. The package of the invention is characterized by the fiber substrate being treated with a combination of a wet-strength size, a hydrophobic size and an aluminum and/or calcium compound for increased heat resistance of the packaging material, and in that the ratio of hydrophobic size to the aluminium and/or calcium compound is 1:1-1:10.

公开(公告)号：SE546857C2

公开(公告)日：2025-02-25

申请号：SE2151336

申请日：2021-10-29

Applicant: STORA ENSO OYJ

Inventor： LJUNGQVIST CARL-HENRIK ,  HEISKANEN ISTO ,  BACKFOLK KAJ

IPC: D21H11/14 ,  B29B17/02 ,  C08J11/04 ,  D21B1/02 ,  D21B1/32 ,  D21C5/02

Abstract: The present invention relates to a method for manufacturing a highly refined cellulose composition, comprising:i) providing a fiber fraction comprising 20-100 wt% fibers obtained from used beverage cartons (UBC) based on the total dry fiber weight of the fiber fraction, ii) optionally subjecting the fiber fraction to mechanical, chemical or enzymatic pretreatment, or a combination thereof,iii) subjecting the optionally pre-treated fiber fraction to refining at a consistency in the range of 0.5-30% by weight to a Schopper-Riegler (SR) in the range of 50-100, as determined by standard ISO 5267-1, to obtain the highly refined cellulose composition.

公开(公告)号：SE546824C2

公开(公告)日：2025-02-25

申请号：SE2151331

申请日：2021-10-29

Applicant: STORA ENSO OYJ

Inventor： LJUNGQVIST CARL-HENRIK ,  HEISKANEN ISTO ,  BACKFOLK KAJ

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 a 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 dilution step; d) optionally subjecting the fine screened UBC fiber fraction to a bleaching method;e) subjecting the fine screened, and optionally bleached, UBC fiber fraction to an electro-osmosis method to remove further contaminants;f) optionally subjecting the fine screened, and optionally bleached, UBC fiber fraction to a dewatering method to a consistency of at least 20 wt%; and g) subjecting the optionally dewatered UBC fiber fraction to a deactivation method to obtain a purified UBC fiber fraction.