... can cause recycled paper to be weak and slippery Wax can deposit on machineryMajor Recovered Paper Gradesz Corrugated: old corrugated containers, container cuttings, kraft paper and bags, ... leather, etc., z Inks & tonersz Stickiesz Coatingsz Fillersz Papermaking additivesCoatings as a Contaminantz Coatings typically contain inorganic fillers and polymeric binders Coating ... tons)Source: AF&PA, 2006 RecoveredPaper Annual StatisticsCommon Contaminants in Wastepaperz Large Junk metals: nuts, screws, foil, cans plastics: films, bags, envelopes dirt cloth, yard waste,...