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COST Action E46: DEINKING. Improvements in the Understanding and Use of Deinking Technology. Gérard GALLAND, COST E46 Action Chair. 13 th PTS - CTP Deinking Symposium Leipzig, 15 - 17 April 2008. COST Action E46: DEINKING.

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improvements in the understanding and use of deinking technology


Improvements in the Understanding and Use of Deinking Technology

Gérard GALLAND, COST E46Action Chair

13th PTS - CTP Deinking SymposiumLeipzig, 15 - 17 April 2008

13th PTS - CTP Deinking Symposium / 1

cost action e46 deinking
  • This 13th PTS-CTP Deinking Symposium is held as a COST E46 workshop.
  • The most interesting results achieved by participants in the action are the subjects of 13 conferences included in the programme of these 3 days.
  • This symposium is, for COST participants, an unique opportunity to transfer research results to industry.

13th PTS - CTP Deinking Symposium / 2

what is cost
What is COST?
  • Founded in 1971, COST is an intergovernmental framework for European Cooperation in the field of Scientific and Technical Research, allowing the co-ordination of nationally funded research on a European level.
  • COST Actions cover basic and pre-competitive research as well as activities of public utility.
  • The goal of COST is to ensure that Europe holds a strong position in the field of scientific and technical research for peaceful purposes, by increasing European cooperation and interaction in this field.
  • COST has 34 member countries and enables scientists to collaborate in a wide spectrum of activities grouped under nine key scientific Domains.
  • For more information:

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cost actions
COST Actions
  • COST Actions are new, innovative, and interdisciplinary scientific networks of nationally funded researchteams of at least five COST countries. They cover basic and pre-competitive research for peaceful purposes as well as activities of public utility.
  • They also contribute to the scientific, economic, cultural or societal development of Europe, by supporting networking activities such as meetings, conferences, short term scientific exchanges and outreach activities. COST does not fund the research in itself.
  • The duration of an Action is generally 4 years.The increasing number of COST Actions reflects the success of COST within the European Scientific Community.

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previous and ongoing cost actions related to paper recycling
Previous and ongoing COST Actions related to Paper Recycling
  • E1 : Paper Recyclability (1993-1998)

Chaired by Angeles Blanco, Spain

This action has initiated networking in Europe

  • E46 : Improvements in the Understanding and Use of Deinking Technology(2004-2008)
  • E48: The Limits of Paper Recycling (2005-2009)

Steering Group: Jan-Erik Levlin, Finland (Chairman)

Harald Grossmann, Germany

Angeles Blanco, Spain

François Julien-Saint-Amand, France

Arie Hooimeijer, the Netherlands

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background of cost action e46
Background of COST ACTION E46
  • Deinked pulp - principal raw material for many papermaking operations, e.g. Newsprint, magazine, tissue & office papers.
  • Deinking systems have evolved from existing technology.
  • Process outwardly simple - but in reality complex.
  • Further complicated by variability of incoming material.
  • Present process satisfactory for most printed output - but a number of print/ink systems already known to create problems.

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printing and deinking
Printing and Deinking

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specific objectives
Specific Objectives
  • Develop better understanding of mechanisms,
  • Better understand flotation process variables,
  • Propose methods for improving deinkability of difficult systems,
  • Monitor and assess trends in printingtechnology, ink & toner developments, market requirements for printed papers.
  • Create a platform for interaction between European scientists and technologists for the transfer of knowledge and expertise.

13th PTS - CTP Deinking Symposium / 11

european research in the deinking area
European Research in the Deinking Area

R&D related to deinking began at the beginning of the 70s(D, F, UK).

Nowadays different organisations are involved and participating in the action:

  • Institutes: with several decades of expertise, close contacts to the Industry and the ability to implement research results in mills
  • Universities involved in fundamental research,
  • Institutes and Universities developing expertise to support local Industry

Companies, particularly machinery suppliers, are also engaged in competitive research but are not involved in the action.

Some confidential projects- related to process improvement - are also carried out on a confidential basis by certain research institutes.

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working groups
Working Groups
  • WG1: Basic studies
      • Mechanism of deinking mainly related to hydrodynamics and physical chemistry including modeling.
  • WG2: Deinking studies (completed in 2007)
      • Process design, Chemical and Mechanical variables.
  • WG3: Printing technology
      • Changes in printing methods,Ink and toner developments, Future developments.
  • WG4: Deinking technology (started in 2007)
      • Built on inputs from WG 1-3, to include improvements in existing technology and new approaches to deinking technology and the design of deinking friendly printed products.

13th PTS - CTP Deinking Symposium / 13

cost e46 deinking steering group

Chairman: Gérard GALLAND,(France)

Vice-Chairman: Graham MOORE, (Pira, UK)

WG1 Chair: Jouko NIINIMÄKI, (Oulu, Finland)

WG2+4 Chair: Elisabeth HANECKER, (PTS, Munich)

WG3 Chair: Bruno CARRE, (CTP, France)

13th PTS - CTP Deinking Symposium / 14

cost e46 deinking
  • 12 participating countries:
  • Croatia
  • Finland
  • France
  • Germany
  • Italy
  • The Netherlands
  • Poland
  • Romania
  • Slovenia
  • Spain
  • Sweden
  • United Kingdom.

13th PTS - CTP Deinking Symposium / 15

cost e46 deinking participants

13th PTS - CTP Deinking Symposium / 16

achievements to date
Achievements to Date
  • Good representation across Europe – currently 27 organisations (10 institutes, 13 universities, 2 associations and 2 companies) from 12 countries.
  • Direct industry involvementvia INGEDE which represents 37 paper mills from A, B, D, E, Fin, F, I, NL, N, S, CH,CZ, UK.
  • Good mix offundamental research and its application to deinking technology.
  • Development of Action website(
  • 10 Short Term Scientific Missions.

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meetings coordination and management
Meetings,Coordination and Management

Regular meetings have been held for the working groups and the management committee

Munich, Nov 2004

Grenoble, June 2005

Girona, February 2006

Grenoble, October 2006

Bilbao, May 2007 common WG meeting with COST E48

Oulu, November 2007

Leipzig, April 2008

Scientific reports covering output of the WG meetings have been published and distributed to all participants.

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wg1 basic studies main results
Surface chemistry;

Chemical modification of surfaces;

Behaviour of ‘sticky’ materials;

Ink particle analysis;

Flotation model.

Fundamental work presented has made an important contribution to the mutual understanding of the deinking process.

This will result in yield and quality improvement and more efficient use of energy.

This will result in more reliable simulation models to aid development of effective process control.

WG1-Basic studies: Main Results

Fundamental knowledge developed in key areas:

Networking between research units has been and is very beneficial.  More fundamental work is, however, needed before models can be effectively utilised in industrial systems.

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wg2 deinking studies main results
Flotation cell design,

Deinking chemical selection,

Chemical and mechanical variables for optimising

ink detachment

Ink removal.

Overview of neutral and enzymatic deinking versus conventional alkaline deinking.

Industrial scale demo of flexo print deinking combining eco-designed ink and process adaptation.

Modelling and simulation of TMP and DIP fibre furnishes in LWC and newsprint (cost and emission comparison).

Optimisation of stickies removal.

WG2 -Deinking studies: Main Results

Interesting results from participants:

WG2 results will be analysed in terms of existing technology improvement as input for WG 4 - Deinking Technology.

WG2 completed in 2007, continued in WG4.

13th PTS - CTP Deinking Symposium / 20

wg3 deinking studies main results
Deinkability investigation of :

Digital print (Toner)

Digital print (Ink jet)

UV inks

Flexo newspaper.

Harmonized methods to test deinkability have been discussed and proposed.

New deinking technologies were reported using ultra sound and magnetic separation to respectively break down the specks and remove them.

WG3 - Deinking studies: Main Results

To maintain long term sustainability of recovered paper deinking, printing inks used should be Eco designed.

  • Deinkability of conventional print
  • incidence of some printing parameters on offset print deinkability.

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deinking symposium cost participant presentations 1 2
Deinking Symposium: COST Participant Presentations (1/2)
  • 4 - Hans-Joachim Putz and Johann Strauß, (PMV & PTS), Impact of the storage of recycled fibre pulp samples on physical and chemical properties.
  • 6 - Oliver Cordier, Christian Bienert, Elisabeth Hanecker and Johannes Kappen, (PTS), Process optimisation of deinking lines based on an innovative management of the particle size distribution.
  • 7 - Chun Ye and Ari Vilenius, (University of Oulu), Evaluation of recycled pulp for distinguishing inks detached from or attached to fibers.
  • 8 - Mika Körkkö, Ossi Laitinen, Sari Vahlroos, Ari Ämmälä and Jouko Niinimäki,(University of Oulu & Kemira), Effects of mineral fillers and pigments on residual ink measurement.
  • 9 - Thierry Delagoutte and Saurabh Kumar,(CTP),Stickies balance: an efficient tool to improve your process efficiency.
  • 12 - Benjamin Fabry and Bruno Carré, (CTP) Interest for mechanical treatments prior to pre-flotation in order to simplify deinking lines.

13th PTS - CTP Deinking Symposium / 22

deinking symposium cost participant presentations 2 2
Deinking Symposium: COST Participant Presentations (2/2)
  • 18 - Elisabeth Hanecker, Gert Bär, Kai Blasius and Martina Klein,(PTS), Stock preparation concepts for ink removal in higher-quality recovered graphic papers.
  • 19 - Andreas Faul and Hans-Joachim Putz, (INGEDE & PMV), European deinkability survey of printed products.
  • 20 -Maria Àngels Pèlach Serra, Laura Barberá, Jordi Pantin, Josep Puig and Pere Mutjé,(Universitat de Girona), Visualisation of ink adsorption on static bubble surfaces.
  • 21 - Davide Beneventi, Jérémy Allix, Elisa Zeno and Patrice Nortier, (EFPG & CTP), Contribution of non-ionic surfactants to particle/water transport phenomena in flotation deinking.
  • 25 - Elena Bobu, Florin Ciolacu and Alina Cretu, (Technical University Iasi), Studies on neutral deinking of different prints.
  • 26 - Graziano Elegir, (SSCCP), Potential/benefit of enzymes in the neutral deinking of office paper and newspapers.
  • 33 - Elisa Zeno, Marie Christine Angelier and Bruno Carré, (CTP), Surfactant mass balance in industrial deinking plants: a tool for flotation control.

13th PTS - CTP Deinking Symposium / 23

strengths and weaknesses
Strengths and Weaknesses
  • Good networking including young scientists, experienced researchers and industrial experts.
  • Well established industrial contacts.
  • Cancellation of a Digital Print Deinking Workshop (plannedfor October 2006).
  • Lack of a Digital Print Actor involved in the Action.

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Short Term Scientific Missions (10)

Transfer of knowledge generated by fundamental research to applied research (4)

Dissemination of test methods (6)

13th PTS - CTP Deinking Symposium / 25

future actions
Future Actions
  • Further STSMs
  • Publications
  • Final conference Bordeaux, October 2008

Action to be completed in October 2008.

13th PTS - CTP Deinking Symposium / 26

furthers stsms
  • 6 new STSMs
    • approved by the last MC (Oulu, November 2007)
    • to be carried out in 2008.

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  • BOOK 1: « Deinking Primer »
    • To assemble all basic information on deinking in one book, and distribute it to young scientists beginning activity in the deinking field.
  • BOOK 2: Selected research resultsachieved in the framework of the action.

13th PTS - CTP Deinking Symposium / 28

final conference

Final Conference, 22 -23 October 2008Bordeaux, (during the ATIP conference)

  • The goal of this final conference will be to initiate in-depth discussions among representatives of the paper industry, of the printing industry and COST researchers on the issue of printing technologies and deinkability.
  • The conference will focus on the deinkability of all print types. It will involve printing and paper industry representatives. The objective is to review deinking difficulties related to different types of print and the solutions proposed. Efforts of printers and ink manufacturers to improve the deinkability of their products will be discussed as well as possible adaptations of the deinking process.Particular focus will be given to results obtained in the framework of the action.
  • INGEDE will be associated in the organisation of this conference.

13th PTS - CTP Deinking Symposium / 29

conclusion deinking research requirement
Conclusion:Deinking Research Requirement
  • To face the challenges of the future, both fundamental and applied research is required.
  • Collaboration, with a limited number of companies sharing costs and results, is the best solution for projects aimed at improving the profitability and competitiveness of these companies, compared to others without access to the same results.
  • Large consortia, with representatives of all members of the paper chain, can support projects of interest for the entire paper chain in order to secure the sustainability of the entire paper chain.
  • All partners: universities, institutes, corporate R&D, still haveimportant roles to play and COST Actions are efficient tools for improving collaboration between the various partners.

13th PTS - CTP Deinking Symposium / 30

cost action e46

Thank you for your attention!


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