TREATMENT OF INORGANIC FILLER MATERIAL FOR PAPER WITH POLYSACCHARIDES

摘要

THE DISCLOSED INVENTION RELATES TO A COMPOSITION COMPRISING FINELY DIVIDED CATIONICALLY CHARGED PARTICLES OF AN INORGANIC MATERIAL TREATED WITH AT LEAST ONE OF ANIONIC POLYSACCHARIDE OR ANIONICALLY MODIFIED POLYSACCHARIDE. THE DISCLOSED INVENTION FURTHER RELATES TO A METHOD OF PROVIDING PAPER OF IMPROVED STRENGTH. THE METHOD ENTAILS PROVIDING FINELY DIVIDED PARTICLES OF INORGANIC MATERIAL, TREATING THE PARTICLES WITH AT LEAST ONE OF ANIONIC POLYSACCHARIDE OR ANIONICALLY MODIFIED POLYSACCHARIDE, AND ADDING THE TREATED PARTICLES TO CELLULOSE FIBER DURING AN ALKALINE PROCESS FOR MAKING PAPER. ALSO, AN ALKALINE PAPER COMPRISING THE FINELY DIVIDED PARTICLES OF INORGANIC MATERIAL TREATED WITH AT LEAST ONE OF ANIONIC POLYSACCHARIDE OR ANIONICALLY MODIFIED POLYSACCHARIDE IS DISCLOSED.