Water resistant ink compositions

摘要

Water resistant ink compositions comprising (I) a water-soluble dye compound and/or an organic pigment compound; (II) an organosilicon compound obtained by hydrolyzing a mixture of (A) a hydrolyzable silane obtained by reacting a specific aminated organic group-bearing hydrolyzable silane with an organic monoepoxy compound, or a partial hydrolyzate thereof, and (B) a specific hydrolyzable silane or a partial hydrolyzate thereof; and (III) water have excellent water resistance, good storage and shelf stability, good ink discharge stability, and outstanding color stability. These ink compositions are particularly suitable for use as ink-jet printer inks.