INK COMPOSITION FOR INK JET

摘要

PROBLEM TO BE SOLVED: To obtain an ink composition used for an ink jet capable of steadily providing good quality prints on gloss paper by using an ink jet printer espe cially of a thermal jet type. SOLUTION: A binding resin that is essentially insoluble in water but soluble in an alkali aqueous solution having dissolved a basic substance is dissolved in the alkaline water prepared by the basic substance. The ink composition is obtained by adding a pigment and an ethylene oxide adduct of an organic acid salt to the solution of the binding resin.