WHITE INK FOR INK JET RECORDING AND TITANIUM DIOXIDE SLURRY FOR THE INK

摘要

PROBLEM TO BE SOLVED: To provide a white ink having excellent dispersion stability, clogging preventing effect on the printing head, ejection stability, storage stability and masking power and usable for the ink jet recording instrument to perform the recording of letters and images on a printing surface of paper, etc., with a liquid ink and provide a titanium dioxide slurry for the white ink. SOLUTION: The white ink for ink jet recording is produced by using a titanium dioxide slurry obtained by treating the surface of titanium dioxide particles with an inorganic phosphoric acid compound and dispersing the treated titanium dioxide particles in water.