| 摘要 |
PURPOSE:An ink composition that contains a specific disazo dye, thus being suitable for use in printing, writing, recording and stamping, because it is free from clogging during storage or use. CONSTITUTION:In an ink composition which is mainly composed of dyes, humectants such as ethylene glycol and water, a dye of the formula (M1, M2 are H, alkali metal, ammonia, organic amine; X is residue of alkylamine of 6-18 carbon atoms or residue of alkoxyalkyamline) is used preferably in an amount of 1-15pts.wt. per 100pts.wt. of the ink composition. |
