second releasing and then removing the ink particles from the said fibrous mass the invention is directed to the treatment of the fiber slurry produced during the ink separation stage after the ink releasing stage has been applied one aim of the process is to allow both the use of the fibers and the mineral fillers contained in that slurry for pulp and board making and the use the solids free water contained in the same slurry as the washing liquid in the previous ink separation treatment thus closing the fibers and the water circuits this process includes chemical and thermo mechanical treatments starting under alkaline conditions which may become neutral at the end of the process application_number US 82294386 A description the following detailed description together with the attached schematic flow sheet refers to one preferred practical application of the invention although other procedures can also be applied following the flow sheet the bales of waste paper 1 are loaded into a pulper 2 by means of a loading mechanism together with the recycled water and eventual caustics in order to bring the ph at values above 7 it is possible but not mandatory to introduce part or all of the quantity of dispersing chemicals required by the ink releasing action during the pulping operation the pulp is then diluted using recycled water and pumped through one or several stages of screens and cleaners 3 in order to release contraries and contaminants from the paper surface.