Pigment suitable for use in coating compositions for inkjet recording
media. Surfaces of an inorganic particulate are interacted with a
water-soluble polyvalent metal salt in an aqueous medium. The treated
particle surfaces have a significant cationic surface charge imparted to
them. The salt is a salt of a metal of Group II or Group III of the
Periodic Table. Inkjet recording media treated with a coating composition
containing the above pigment provide high density, fast-drying, and
non-feathering ink images with suitable water fastness, while the coating
compositions also offer cost advantages and improved rheology at higher
pigment levels over coatings based on silica pigments.