1.Quality control of recovered papers :
Among the projects included in the section QUALITY CONTROL OF RECOVERED PAPERS AND BOARDS, one concerns deinking. The NEWSMAG sensor designed to give deinking mills a specific tool for evaluating the ONP/OMG ratio in their furnish is to be developed as an industrial tool in 2004.

2.Optimisation of the deinking process for cost reduction :
Work focuses on 3 main steps of the process: pulping, flotation and dispersing. Previous projects have generated useful information creating new pulping strategy regarding ink detachment and contaminant fragmentation. Optimisation of the dispersion stage for various initial pulping conditions will enhance this information. After achieving a better understanding of the basic phenomena involved in flotation, the knowledge acquired will be applied to industry to improve ink flotation selectivity and to reduce losses. Particular interest will be given to better understanding the consequences of circuit closure on deinking efficiency in order to be able to run the deinking process with less fresh water. A new project will model the flotation deinking process to see if an advanced process control system can be developed by using acquired knowledge and data provided by a network of online sensors.

3.Improvement of pulp quality, use of deinked pulp :
Bleaching work is focused on a better understanding of the bleachability of wood containing DIP. A study will treat the interactions between mechanical and deinked pulps to better understand their consequences on the papermaking process and to find solutions to limit the negative effects of interactions previously studied. Adaptation of wet-end chemistry will be studied. Another project related to wet-end chemistry aims at optimising sheet formation from mixtures of chemical pulp, TMP pulp and mineral filler. Although this study deals with virgin fibres, results can also be of interest to deinked pulp users as such a mixture is a "model" of deinked pulp.

4.Filler Reuse :
Deinking reject management is a huge problem for deinking plants. The amount of sludge could be reduced if some pigments were reused separately of fibres by the paper industry. A project will evaluate and develop new treatments to reuse, at least partially, recycled pigments in surface treatment applications for graphic papers, such as pre-coating for LWC papers or new “surface filling treatments” which might be developed for SC papers.