Herbert Sixta

Professor Sixta Herbert's research interests include the following:

  • Pulping chemistry and technology with special emphasis on dissolving pulps
  • Cellulose chemistry
  • Chemistry of the fractionation of biomass, in particular lignocellulosic biomass
  • Valorization of cellulose to regenerated cellulose fibers
  • Valorization of cellulose to cellulose derivatives
  • Dry-jet wet spinning of cellulose solutions
  • Valorization of hemicelluloses as furanic compounds
  • Isolation and characterization of lignin. Valorization of lignin to monoaromatic structures, to bio-oil and as co-polymer in composite material with cellulose
  • Cellulose textile chemistry
  • Novel dying technologies for cellulose-based textiles.
  • Novel pathways of functionalization of cellulose-based textiles
  • Chemical and mechanical purification of pulps
  • Oxygen delignification of unbleached pulps
  • TCF- and ECF  bleaching techniques
  • Organosolv fractionation methods with particular emphasis on GVL/water pulping of hardwood
Full researcher profile


[email protected]


European Paper Recycling Award 2015 European Recovered Paper Council, EU

Palkinto tai huomionosoitus tuotoksesta Puunjalostustekniikan laitos Jan 2015

Best Poster Award - Workshop on Cellulose Renegated Fibres University of Karlstad, Sweden

Palkinto tai huomionosoitus tuotoksesta Puunjalostustekniikan laitos Jan 2007

Knight, First Class, of the Order of the White Rose of Finland

Palkinto tai huomionosoitus urasta Biotuotteiden ja biotekniikan laitos Jan 2016

Global Change Award

Palkinto tai huomionosoitus urasta Biotuotteiden ja biotekniikan laitos Feb 2016

Mitscherlich Medaille from Zellcheming, Germany, for merits in dissolving pulp technology

Palkinto tai huomionosoitus urasta Biotuotteiden ja biotekniikan laitos Jan 2006

DIA Design Intelligence Award, China

Ioncell project awarded with DIA Design Intelligence Award (shortlisted among 22 best, 6.-8.5. Grand final), Hangzhou, China http://en.di-award.org, 10 000 euros
Sijoittuminen kilpailussa tai osallistuminen kutsukilpailuun Muotoilun laitos May 2018

Ioncell project selected for Designmuseum Habitare Collection

Palkinto tai huomionosoitus tuotoksesta Muotoilun laitos Sep 2019


Conversion of bleached soda bagasse paper-grade pulp to dissolving-grade pulp using different hemicelluloses removing post-treatments with emphasis on IONCELL-P process

Kajal Moradian Gilan, Sahab Hedjazi, Huy Quang Lê, Ali Abdolkhani, Sara Ceccherini, Mira Viljanen, Herbert Sixta 2022 Holzforschung

High-purity cellulose production from birch wood by γ-valerolactone/water fractionation and IONCELL-P process

Shokoufeh Shokri, Sahab Hedjazi, Huy Quang Lê, Ali Abdulkhani, Herbert Sixta 2022 Carbohydrate Polymers

Application-Related Consideration of the Thermal Stability of [mTBDH][OAc] Compared to Amidine-Based Ionic Liquids in the Presence of Various Amounts of Water

Inge Schlapp-Hackl, Joanna Witos, Krishna Ojha, Petri Uusi-Kyyny, Ville Alopaeus, Herbert Sixta 2022 Industrial & Engineering Chemistry Research

Effect of single-fiber properties and fiber volume fraction on the mechanical properties of Ioncell fiber composites

Alp Karakoc, Mindaugas Bulota, Michael Hummel, Simona Sriubaitė, Mark Hughes, Herbert Sixta, Jouni Paltakari 2021 JOURNAL OF REINFORCED PLASTICS AND COMPOSITES

Cellulose-lignin composite fibres as precursors for carbon fibres. Part 1 – Manufacturing and properties of precursor fibres

Mikaela Trogen, Nguyen Duc Le, Daisuke Sawada, Chamseddine Guizani, Tainise Vergara Lourençon, Leena Pitkänen, Herbert Sixta, Riddhi Shah, Hugh O'Neill, Mikhail Balakshin, Nolene Byrne, Michael Hummel 2021 Carbohydrate Polymers

Process-dependent nanostructures of regenerated cellulose fibres revealed by small angle neutron scattering

Daisuke Sawada, Yoshiharu Nishiyama, Thomas Röder, Lionel Porcar, Hilda Zahra, Mikaela Trogen, Herbert Sixta, Michael Hummel 2021 Polymer

Identification of cellulose textile fibers

Mikko Mäkelä, Marja Rissanen, Herbert Sixta 2021 Analyst

Towards regenerated cellulose fibers with high toughness

Kaniz Moriam, Daisuke Sawada, Kaarlo Nieminen, Michael Hummel, Yibo Ma, Marja Rissanen, Herbert Sixta 2021 Cellulose

Spinneret geometry modulates the mechanical properties of man-made cellulose fibers

Kaniz Moriam, Daisuke Sawada, Kaarlo Nieminen, Yibo Ma, Marja Rissanen, Nicole Nygren, Chamseddine Guizani, Michael Hummel, Herbert Sixta 2021 Cellulose

Sustainable Cross-Linking of Man-Made Cellulosic Fibers with Poly(carboxylic acids) for Fibrillation Control

Yibo Ma, Xiang You, Marja Rissanen, Inge Schlapp-Hackl, Herbert Sixta 2021 ACS Sustainable Chemistry and Engineering