The present invention is directed to a method for increasing the retention on a washing/thickening device in an aqueous papermaking system. The method generally comprises adding to the furnish solids of the system an effective amount of a cationic polyacrylamide polymer....http://www.google.es/patents/US5626718?utm_source=gb-gplus-sharePatente US5626718 - Use of polymers in the recycled fiber washing/deinking process
Use of polymers in the recycled fiber washing/deinking process
