TREATED INORGANIC PIGMENTS HAVING REDUCED PHOTOACTIVITY AND ANTI-MICROBIAL PROPERTIES AND THEIR USE IN PAPER SLURRIES

摘要

The disclosure provides a paper slurry comprising a treated inorganic particle having reduced photoactivity and improved anti-microbial properties, wherein the treated inorganic pigment comprises: an inorganic core particle; a first treatment of a silicon compound, wherein the silicon compound is added in a single step; and a second treatment comprising a co-precipitated zinc oxide and alumina.