Problem: To improve clogging and ink droplet deflection.
Solving Means: An ink composition comprising at least water, a colorant and an aromatic compound having a carboxyl group, which contains at least one member selected from the group consisting of a sodium ion, a potassium ion and an ammonium ion and also contains a lithium ion. Alternatively, an ink composition comprising at least water, a specific cyan dye and an aromatic compound having a carboxyl group, which contains a lithium ion and also contains a sodium ion and/or a potassium ion.
问题:改善堵塞和墨滴偏转。
解决方法:一种油墨组合物,包括至少
水、一种色料和一种含有羧基的芳香化合物,其中包含从
钠离子、
钾离子和
铵离子组成的群体中选择的至少一种成员,同时还含有
锂离子。或者,一种油墨组合物,包括至少
水、一种特定的青色
染料和一种含有羧基的芳香化合物,其中包含
锂离子,同时还含有
钠离子和/或
钾离子。