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  • 201. Jansson, A
    et al.
    Thuvander, Fredrik
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Paper Surface Centre. Karlstad University, Faculty of Technology and Science, Materials Science. Karlstad University, Faculty of Technology and Science, Department of Mechanical and Materials Engineering.
    Influence of thickness on the mechanical properties for starch films2004In: Carbohydrate Polymers, 56, 499-503, (2004)Article in journal (Refereed)
  • 202. Jansson, Agneta
    et al.
    Järnström, Lars
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Paper Surface Centre. Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering. Karlstad University, Faculty of Technology and Science, Materials Science.
    Barrier and film properties of plastisol coatings, a water free coating application based on mixtures of starch, poly(vinyl alcohol) and poly(alkyl methacrylate)2006In: Nordic Pulp and Paper Research Journal, 21(5), p 690-696, (2006)Article in journal (Refereed)
  • 203. Jansson, Agneta
    et al.
    Järnström, Lars
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Paper Surface Centre. Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering. Karlstad University, Faculty of Technology and Science, Materials Science.
    Barrier and mechanical properties of different modified starches2005In: Cellulose, 12(4), 423–433 (2005)Article in journal (Refereed)
  • 204. Jansson, Agneta
    et al.
    Järnström, Lars
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Paper Surface Centre. Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering. Karlstad University, Faculty of Technology and Science, Materials Science.
    Barrier and mechanical properties of different modified starches2003Conference paper (Other (popular science, discussion, etc.))
  • 205. Jansson, Agneta
    et al.
    Järnström, Lars
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Paper Surface Centre. Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering. Karlstad University, Faculty of Technology and Science, Materials Science.
    Barrier and mechanical properties of different modified starches2003Conference paper (Other (popular science, discussion, etc.))
  • 206. Jansson, Agneta
    et al.
    Järnström, Lars
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Paper Surface Centre. Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering. Karlstad University, Faculty of Technology and Science, Materials Science.
    Plastisol Coatings Based on Mixtures of Starch, Poly(vinyl alcohol) and Poly(alkyl methacrylate)2006Conference paper (Other (popular science, discussion, etc.))
  • 207. Jansson, Agneta
    et al.
    Järnström, Lars
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Paper Surface Centre. Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering. Karlstad University, Faculty of Technology and Science, Materials Science.
    Swelling properties of spray-dried powders made of starch and poly(vinyl alcohol)2006In: Anual Transactions The Nordic Rheology Society, (14), 215-218, (2006), 2006Chapter in book (Other academic)
  • 208. Jansson, Agneta
    et al.
    Järnström, Lars
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Paper Surface Centre. Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering. Karlstad University, Faculty of Technology and Science, Materials Science.
    Swelling properties of spray-dried powders made of starch and poly(vinyl alcohol)2006Conference paper (Other (popular science, discussion, etc.))
  • 209. Jansson, Agneta
    et al.
    Järnström, Lars
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Paper Surface Centre. Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering. Karlstad University, Faculty of Technology and Science, Materials Science.
    Rättö, Peter
    Water Uptake and Mechanical Properties of Cast Films Made from Aqueous Solutions of Starch and Polyvinyl alcohol2005Conference paper (Other (popular science, discussion, etc.))
  • 210. Jansson, Agneta
    et al.
    Järnström, Lars
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Paper Surface Centre. Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering. Karlstad University, Faculty of Technology and Science, Materials Science.
    Rättö, Peter
    Water Uptake and Mechanical Properties of Cast Starch and Polyvinyl alcohol Films2005Conference paper (Other (popular science, discussion, etc.))
  • 211. Jansson, Agneta
    et al.
    Järnström, Lars
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Paper Surface Centre. Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering. Karlstad University, Faculty of Technology and Science, Materials Science.
    Rättö, Peter
    Thuvander, Fredrik
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Paper Surface Centre. Karlstad University, Faculty of Technology and Science, Materials Science. Karlstad University, Faculty of Technology and Science, Department of Mechanical and Materials Engineering.
    Physical and Swelling Properties of Spray-Dried Powders made from Starch and Poly(vinyl alcohol)2006In: Starch/Stärke, 58 (12), 632-641,(2006)Article in journal (Refereed)
  • 212. Jansson, Agneta
    et al.
    Thuvander, Fredrik
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Paper Surface Centre. Karlstad University, Faculty of Technology and Science, Materials Science. Karlstad University, Faculty of Technology and Science, Department of Mechanical and Materials Engineering.
    Influence of thickness on the mechanical properties for starch films2004In: Carbohydrate Polymers, 56, 2004, pp 499-503Article in journal (Refereed)
  • 213. Jansson, Agneta
    et al.
    Thuvander, Fredrik
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Paper Surface Centre. Karlstad University, Faculty of Technology and Science, Materials Science. Karlstad University, Faculty of Technology and Science, Department of Mechanical and Materials Engineering.
    Mechanical properties of starch - a biodegradable polymer2002Conference paper (Refereed)
  • 214.
    Javed, Asif
    et al.
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Engineering and Chemical Sciences.
    Ullsten, Henrik
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Engineering and Chemical Sciences.
    Ernstsson, Marie
    SP Technical Research Institute of Sweden, SP Chemistry, Materials and Surfaces.
    Järnström, Lars
    Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering. Karlstad University, Faculty of Technology and Science, Paper Surface Centre. Karlstad University, Faculty of Technology and Science, Materials Science.
    Study of starch and starch-PVOH blends and effects of plasticizers on mechanical and barrier properties of coated paperboard2016In: Nordic Pulp & Paper Research Journal, ISSN 0283-2631, E-ISSN 2000-0669, Vol. 31, no 3, p. 499-510Article in journal (Refereed)
    Abstract [en]

    The mechanical properties of self-supporting films based on starch-plasticizer and starch-PVOH-plasticizer and the barrier properties of paperboard coated with solutions of these polymers have been studied. The plasticizers used were glycerol, polyethylene glycol and citric acid. It was shown that the addition of a plasticizer and PVOH to starch substantially increases the flexibility of starch films. It was seen that curing the self-supporting films led to a decrease in flexibility. After heat-treatment, a substantial increase in storage modulus was observed only in the starch-PVOH-citric-acid blend films. Tensile tests on the films indicate that citric acid did not cause any noticeable phase separation. Citric acid acted as a compatibilizer for starch-PVOH blends even though a similar enrichment of PVOH at the air-solid interface was observed with both citric acid and polyethylene glycol as plasticizer. The properties of barrier coatings greatly reflected the compatibility of starch-PVOH blends containing citric acid. The only plasticizer that resulted in a lower water vapour transmission rate through the starch and starch-PVOH coatings was citric acid, which suggests that cross-linking took place. With four layers, coatings based of starch-PVOH possessed the same oxygen-transmission rate with citric acid as without citric acid.

  • 215. Jernkvist, L O
    et al.
    Thuvander, Fredrik
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Paper Surface Centre. Karlstad University, Faculty of Technology and Science, Materials Science. Karlstad University, Faculty of Technology and Science, Department of Mechanical and Materials Engineering.
    Determination of cylindrical elastic orthotropy in wood by use of digital speckle photography2000Conference paper (Refereed)
  • 216. Jernkvist, L O
    et al.
    Thuvander, Fredrik
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Paper Surface Centre. Karlstad University, Faculty of Technology and Science, Materials Science. Karlstad University, Faculty of Technology and Science, Department of Mechanical and Materials Engineering.
    Experimental determination of stiffness variation across growth rings in Picea Abies2001In: Holzforschung 55 2001 pp 309-317Article in journal (Refereed)
  • 217.
    Johansson, Caisa
    et al.
    Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering. Karlstad University, Faculty of Health, Science and Technology (starting 2013), Paper Surface Centre.
    Ernstsson, M.
    Järnström, Lars
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Paper Surface Centre. Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering. Karlstad University, Faculty of Technology and Science, Materials Science.
    Barrier Properties and Heat Sealability/Failure Mechanisms of Dispersion-Coated Paperboard2002In: Packag.Technol.Sci.,15(4),209-224(2002)Article in journal (Refereed)
  • 218.
    Johansson, Caisa
    et al.
    Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering. Karlstad University, Faculty of Health, Science and Technology (starting 2013), Paper Surface Centre.
    Ernstsson, Marie
    Järnström, Lars
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Paper Surface Centre. Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering. Karlstad University, Faculty of Technology and Science, Materials Science.
    Barrier and heat sealing properties of dispersion coated board2002Conference paper (Other (popular science, discussion, etc.))
  • 219.
    Johansson, Caisa
    et al.
    Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering. Karlstad University, Faculty of Health, Science and Technology (starting 2013), Paper Surface Centre.
    Ernstsson, Marie
    Järnström, Lars
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Paper Surface Centre. Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering. Karlstad University, Faculty of Technology and Science, Materials Science.
    Barrier and heat sealing properties of dispersion coated board2002Conference paper (Other (popular science, discussion, etc.))
  • 220.
    Johansson, Caisa
    et al.
    Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering. Karlstad University, Faculty of Health, Science and Technology (starting 2013), Paper Surface Centre.
    Ernstsson, Marie
    Järnström, Lars
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Paper Surface Centre. Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering. Karlstad University, Faculty of Technology and Science, Materials Science.
    Barrier and heat sealing properties of dispersion coated board2002Conference paper (Other (popular science, discussion, etc.))
  • 221.
    Johansson, Caisa
    et al.
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Engineering and Chemical Sciences, Paper Surface Centre.
    Jonhed, Anna
    Järnström, Lars
    Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering. Karlstad University, Faculty of Technology and Science, Paper Surface Centre. Karlstad University, Faculty of Technology and Science, Materials Science.
    Composition and film properties of temperature responsive, hydrophobically modified potatio starch2008In: Starch: international journal for the investigation, processing and use of carbohydrates and their derivatives, ISSN 0038-9056, Vol. 60, no 10, p. 539-550Article in journal (Refereed)
  • 222.
    Johansson, Caisa
    et al.
    Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering. Karlstad University, Faculty of Health, Science and Technology (starting 2013), Paper Surface Centre.
    Järnström, Lars
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Paper Surface Centre. Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering. Karlstad University, Faculty of Technology and Science, Materials Science.
    Barrier dispersion coatings in food packaging2001Conference paper (Other (popular science, discussion, etc.))
  • 223.
    Johansson, Caisa
    et al.
    Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering. Karlstad University, Faculty of Health, Science and Technology (starting 2013), Paper Surface Centre.
    Järnström, Lars
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Paper Surface Centre. Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering. Karlstad University, Faculty of Technology and Science, Materials Science.
    Controlled penetration of starch and hydrophobic sizing agent in surface sizing of porous materials2006In: Appita Journal, 59(3), 207-212 (2006)Article in journal (Refereed)
  • 224.
    Johansson, Caisa
    et al.
    Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering. Karlstad University, Faculty of Health, Science and Technology (starting 2013), Paper Surface Centre.
    Järnström, Lars
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Paper Surface Centre. Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering. Karlstad University, Faculty of Technology and Science, Materials Science.
    Heat sealability and water vapor permeability of barrier dispersion coatings2002Conference paper (Refereed)
  • 225.
    Johansson, Caisa
    et al.
    Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering. Karlstad University, Faculty of Health, Science and Technology (starting 2013), Paper Surface Centre.
    Järnström, Lars
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Paper Surface Centre. Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering. Karlstad University, Faculty of Technology and Science, Materials Science.
    Heat sealability and water vapor permeability of barrier dispersion coatings2002In: TAPPI 2002 Coating Conference, TAPPI Press, Atlanta, USA, pp. 383-401 (2002), 2002Chapter in book (Refereed)
  • 226.
    Johansson, Caisa
    et al.
    Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering. Karlstad University, Faculty of Health, Science and Technology (starting 2013), Paper Surface Centre.
    Järnström, Lars
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Paper Surface Centre. Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering. Karlstad University, Faculty of Technology and Science, Materials Science.
    Modified Starches for Barrier Coatings2005Conference paper (Other (popular science, discussion, etc.))
  • 227.
    Johansson, Caisa
    et al.
    Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering. Karlstad University, Faculty of Health, Science and Technology (starting 2013), Paper Surface Centre.
    Järnström, Lars
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Paper Surface Centre. Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering. Karlstad University, Faculty of Technology and Science, Materials Science.
    Hellgren, Ann-Charlotte
    Effects of carboxylation and neutralizing agent on polymer interdiffusion and water vapour permeability of latexes2001Conference paper (Refereed)
  • 228.
    Johansson, Caisa
    et al.
    Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering. Karlstad University, Faculty of Health, Science and Technology (starting 2013), Paper Surface Centre.
    Järnström, Lars
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Paper Surface Centre. Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering. Karlstad University, Faculty of Technology and Science, Materials Science.
    Hellgren, Ann-Charlotte
    Effects of carboxylation and neutralizing agent on polymer interdiffusion and water vapour permeability of latexes2001In: TAPPI Advanced Coating Fundamentals Symposium, San Diego, May 2001, Proceedings, pp. 221-235, 2001Chapter in book (Refereed)
  • 229.
    Johansson, Caisa
    et al.
    Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering. Karlstad University, Faculty of Health, Science and Technology (starting 2013), Paper Surface Centre.
    Järnström, Lars
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Paper Surface Centre. Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering. Karlstad University, Faculty of Technology and Science, Materials Science.
    Hellgren, Ann-Charlotte
    Effects of carboxylation on polymer interdiffusion and water vapour permeability of latexes2002In: Nordic Pulp Paper Res.J.,17(1),.20-28(2002)Article in journal (Refereed)
  • 230.
    Johansson, Caisa
    et al.
    Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering. Karlstad University, Faculty of Health, Science and Technology (starting 2013), Paper Surface Centre.
    Järnström, Lars
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Paper Surface Centre. Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering. Karlstad University, Faculty of Technology and Science, Materials Science.
    Hellgren, Ann-Charlotte
    Effects of carboxylation on polymer interdiffusion and water vapour permeability of latexes2000Conference paper (Other (popular science, discussion, etc.))
  • 231.
    Johansson, Caisa
    et al.
    Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering. Karlstad University, Faculty of Health, Science and Technology (starting 2013), Paper Surface Centre.
    Järnström, Lars
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Paper Surface Centre. Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering. Karlstad University, Faculty of Technology and Science, Materials Science.
    Mesic, Behudin
    Distribution of starch and hydrophobic sizing agents2003Conference paper (Other (popular science, discussion, etc.))
  • 232.
    Johansson, Caisa
    et al.
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Engineering and Chemical Sciences, Paper Surface Centre.
    Lestelius, Magnus
    Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering. Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Engineering and Chemical Sciences, Paper Surface Centre. Karlstad University, Faculty of Technology and Science, Materials Science.
    Järnström, Lars
    Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering. Karlstad University, Faculty of Technology and Science, Paper Surface Centre. Karlstad University, Faculty of Technology and Science, Materials Science.
    Johnson, Johanna
    Rättö, Peter
    Blohm, Erik
    Some properties of flexographic printing plates and aspects of print quality2009In: Appita journal, ISSN 1038-6807, Vol. 62, no 5, p. 371-378Article in journal (Refereed)
  • 233.
    Johansson, Hans
    Karlstad University, Faculty of Technology and Science, Materials Science. Karlstad University, Faculty of Technology and Science, Department of Mechanical and Materials Engineering.
    Strip steel shapers as a result of non uniform plastic distributions. Part 12002Report (Other academic)
  • 234.
    Johansson, Hans
    et al.
    Karlstad University, Faculty of Technology and Science, Materials Science. Karlstad University, Faculty of Technology and Science, Department of Mechanical and Materials Engineering.
    Bergström, Jens
    Karlstad University, Faculty of Technology and Science, Materials Science. Karlstad University, Faculty of Technology and Science, Department of Mechanical and Materials Engineering.
    Strip steel shapes as a result of non uniform plastic strain distributions. Part 22002Report (Other academic)
  • 235.
    Johansson, Hans
    et al.
    Karlstad University, Faculty of Technology and Science, Materials Science. Karlstad University, Faculty of Technology and Science, Department of Mechanical and Materials Engineering.
    Bergström, Jens
    Karlstad University, Faculty of Technology and Science, Materials Science. Karlstad University, Faculty of Technology and Science, Department of Mechanical and Materials Engineering.
    Tillstånd i bandstål av betydelse för bandets form2002Report (Other academic)
  • 236. Johansson, K
    et al.
    Thuvander, Fredrik
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Paper Surface Centre. Karlstad University, Faculty of Technology and Science, Materials Science. Karlstad University, Faculty of Technology and Science, Department of Mechanical and Materials Engineering.
    Germgård, Ulf
    Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering.
    Single fibre fragmentation, SFF, as evaluation of fibre strength in brown stock washing and oxygen delignification2000Conference paper (Refereed)
  • 237. Johansson, K
    et al.
    Thuvander, Fredrik
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Paper Surface Centre. Karlstad University, Faculty of Technology and Science, Materials Science. Karlstad University, Faculty of Technology and Science, Department of Mechanical and Materials Engineering.
    Germgård, Ulf
    Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering.
    Single fibre fragmentation, SFF, as evaluation of fibre strength in brown stock washing and oxygen delignification2001In: Appita Journal, Vol. vol 54 no 3Article in journal (Refereed)
  • 238.
    Johansson, Kristin
    et al.
    Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering.
    Christophliemk, Hanna
    Energy and Process Engineering, Tampere University of Technology.
    Jönsson, Leif J.
    Kemiska institutionen, Department of Chemistry, Umeå Universitet.
    Järnström, Lars
    Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering. Karlstad University, Faculty of Technology and Science, Paper Surface Centre. Karlstad University, Faculty of Technology and Science, Materials Science.
    Effect of Pigment Volume Concentration and Drying Aspects on the Enzyme Activity of Clay Coatings2010In: TAPPI 11th Advance Coating Fundamentals Symposium Proceedings: Chapter 6.1, Atlanta: TAPPI press , 2010Conference paper (Refereed)
  • 239. Johansson, Kristin
    et al.
    Christophliemk, Hanna
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Engineering and Chemical Sciences.
    Jönsson, Leif
    Järnström, Lars
    Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering. Karlstad University, Faculty of Technology and Science, Paper Surface Centre. Karlstad University, Faculty of Technology and Science, Materials Science.
    Effect of Pigment Volume Concentration and Drying Aspects on the Enzyme Activity of Clay Coatings2010Conference paper (Other academic)
  • 240.
    Johansson, Kristin
    et al.
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Engineering and Chemical Sciences (from 2013).
    Gillgren, Thomas
    Umea Univ, Dept Chem, SE-90187 Umea, Sweden..
    Winestrand, Sandra
    Umea Univ, Dept Chem, SE-90187 Umea, Sweden..
    Järnström, Lars
    Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering. Karlstad University, Faculty of Technology and Science, Paper Surface Centre. Karlstad University, Faculty of Technology and Science, Materials Science.
    Jonsson, Leif J.
    Umea Univ, Dept Chem, SE-90187 Umea, Sweden..
    Comparison of lignin derivatives as substrates for laccase-catalyzed scavenging of oxygen in coatings and films2014In: Journal of Biological Engineering, ISSN 1754-1611, E-ISSN 1754-1611, Vol. 8, article id 1Article in journal (Refereed)
    Abstract [en]

    Background: Lignin derivatives are phenylpropanoid biopolymers derived from pulping and biorefinery processes. The possibility to utilize lignin derivatives from different types of processes in advanced enzyme-catalyzed oxygen-scavenging systems intended for active packaging was explored. Laccase-catalyzed oxidation of alkali lignin (LA), hydrolytic lignin (LH), organosolv lignin (LO), and lignosulfonates (LS) was compared using oxygen-scavenging coatings and films in liquid and gas phase systems. Results: When coatings containing lignin derivatives and laccase were immersed in a buffered aqueous solution, the oxygen-scavenging capability increased in the order LO < LH < LA < LS. Experiments with coatings containing laccase and LO, LH or LA incubated in oxygen-containing gas in air-tight chambers and at a relative humidity (RH) of 100% showed that paperboard coated with LO and laccase reduced the oxygen content from 1.0% to 0.4% during a four-day period, which was far better than the results obtained with LA or LH. LO-containing coatings incubated at 92% RH also displayed activity, with a decrease in oxygen from 1.0% to 0.7% during a four-day period. The oxygen scavenging was not related to the content of free phenolic hydroxyl groups, which increased in the order LO < LS < LH < LA. LO and LS were selected for further studies and films containing starch, clay, glycerol, laccase and LO or LS were characterized using gel permeation chromatograpy, dynamic mechanical analysis, and wet stability. Conclusions: The investigation shows that different lignin derivatives exhibit widely different properties as a part of active coatings and films. Results indicate that LS and LO were most suitable for the application studied and differences between them were attributed to a higher degree of laccase-catalyzed cross-linking of LS than of LO. Inclusion in active-packaging systems offers a new way to utilize some types of lignin derivatives from biorefining processes.

  • 241.
    Johansson, Kristin
    et al.
    Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering.
    Winestrand, Sandra
    Umea Univ, Dept Chem, Umea, Sweden..
    Järnström, Lars
    Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering. Karlstad University, Faculty of Technology and Science, Paper Surface Centre. Karlstad University, Faculty of Technology and Science, Materials Science.
    Jonsson, Leif J.
    Umea Univ, Dept Chem, Umea, Sweden..
    Laccase and lignin derivatives as oxygen-scavenging and cross-linking system in renewable active packaging2012In: Abstracts of Papers of the American Chemical Society, ISSN 0065-7727, Vol. 243Article in journal (Refereed)
  • 242.
    Johansson, Lars
    et al.
    Karlstad University, Faculty of Technology and Science, Department of Physics and Electrical Engineering. Karlstad University, Faculty of Technology and Science, Materials Science.
    Duda, L.
    Laurenzis, M.
    Krieftewirth, M.
    Reihl, B.
    Electronic Structure of the 6H-SiC(0001)-3×3 Surface Studied with Angle-Resolved Inverse and Direct Photoemission2000In: Surface Science 445, 109 (2000)Article in journal (Refereed)
  • 243. Johansson, T.
    et al.
    Järnström, Lars
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Paper Surface Centre. Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering. Karlstad University, Faculty of Technology and Science, Materials Science.
    The Reduction of Sulphide and Oxide Compounds on High Speed Steel Powder in a Hydrogen Gas Stream1980In: Mat.Sci.Eng.,42,353(1980)Article in journal (Refereed)
  • 244. Johnson, Johanna
    et al.
    Järnström, Lars
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Paper Surface Centre. Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering. Karlstad University, Faculty of Technology and Science, Materials Science.
    Växelverkan mellan ytspänningsmodifierat vatten och tryckfärg på kartongmaterial i flexotryck: Effekter på tryckkvalitativa parametrar2002Conference paper (Other (popular science, discussion, etc.))
  • 245. Johnson, Johanna
    et al.
    Lestelius, Magnus
    Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering. Karlstad University, Faculty of Health, Science and Technology (starting 2013), Paper Surface Centre. Karlstad University, Faculty of Technology and Science, Materials Science.
    Rättö, Peter
    Blohm, E.
    Järnström, Lars
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Paper Surface Centre. Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering. Karlstad University, Faculty of Technology and Science, Materials Science.
    Interaction between water and paperboard and liner in a flexographic printing press2002Conference paper (Refereed)
  • 246. Johnson, Johanna
    et al.
    Rättö, Peter
    Blohm, E.
    Lestelius, Magnus
    Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering. Karlstad University, Faculty of Health, Science and Technology (starting 2013), Paper Surface Centre. Karlstad University, Faculty of Technology and Science, Materials Science.
    Järnström, Lars
    Karlstad University, Faculty of Health, Science and Technology (starting 2013), Paper Surface Centre. Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering. Karlstad University, Faculty of Technology and Science, Materials Science.
    Interaction Between Water and Paperboard and Liner in a Flexographic Printing Press2003In: Journal of Graphic Technology,vol.1(2),7-17(2003)Article in journal (Refereed)
  • 247. Johnson, Johanna
    et al.
    Rättö, Peter
    Blohm, E.
    Lestelius, Magnus
    Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering. Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Engineering and Chemical Sciences, Paper Surface Centre. Karlstad University, Faculty of Technology and Science, Materials Science.
    Järnström, Lars
    Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering. Karlstad University, Faculty of Technology and Science, Paper Surface Centre. Karlstad University, Faculty of Technology and Science, Materials Science.
    The Interaction between Water and Liner and Newsprint in Flexographic CI-Printing2008Conference paper (Other (popular science, discussion, etc.))
  • 248.
    Johnson, Johanna
    et al.
    Karlstad University, Faculty of Technology and Science.
    Rättö, Peter
    Karlstad University, Faculty of Technology and Science.
    Järnström, Lars
    Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering.
    Lestelius, Magnus
    Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering. Karlstad University, Faculty of Technology and Science, Materials Science.
    Blohm, Erik
    Swedish Pulp and Paper Research Institute (STFI) AB, Stockholm.
    Interaction Between Water And Paperboard And Liner In A Flexographic Printing Press2005In: Taga Journal, ISSN 1748-0337, Vol. 1, no 2, p. 110-128Article in journal (Refereed)
  • 249. Johnson, Johanna
    et al.
    Rättö, Peter
    Lestelius, Magnus
    Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering. Karlstad University, Faculty of Health, Science and Technology (starting 2013), Paper Surface Centre. Karlstad University, Faculty of Technology and Science, Materials Science.
    Blohm, E.
    Measuring the Dynamic Nip Pressure in a Flexographic CI-Printing Press2004In: Nordic Pulp and Paper Journal, vol.19,2004,pp 84-88Article in journal (Refereed)
    Abstract [en]

    The dynamic pressure in a flexographic printing press was measured and the influence of impression, speed and choice of printing plate on the dynamic pressure was analysed. The measurements were complemented by measurements to assess the ink transfer to the substrate

  • 250.
    Johnson, Johanna
    et al.
    Karlstad University, Faculty of Technology and Science.
    Rättö, Peter
    Karlstad University, Faculty of Technology and Science.
    Lestelius, Magnus
    Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering. Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Engineering and Chemical Sciences, Paper Surface Centre. Karlstad University, Faculty of Technology and Science, Materials Science.
    Järnström, Lars
    Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering. Karlstad University, Faculty of Technology and Science, Paper Surface Centre.
    Dynamic Nip Pressure in a Flexographic CI-Printing Press2003In: TAGA Proceedings, 2003, p. 357-374Conference paper (Other academic)
2345678 201 - 250 of 634
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