| 摘要 |
PURPOSE:To obtain an ink composition for ink jetting, writing tools, recorders, etc., having improved jetting stability of ink, rapid drying of ink in simultaneous printing, having no ooze of dots and improved water resistance of picture images, containing specific dye. CONSTITUTION:The aimed ink composition containing dye shown by the formula (CuPc is copper phthalocyanine; R1 and R2 are H, lower alkyl or hydroxyalkyl; M<+> is H<+>, alkali metal cation, ammonium ion or organic ammonium ion; m and n are 0-4; m+n=4). The amount of the dye added is 2-3wt%. |
