Disclosed is a reactive dye ink exhibiting excellent ejection stability when used in a printer having an inkjet head for commercial use which requires a high-viscosity ink. The reactive dye ink has excellent storage stability and excellent fixability to textiles. Specifically disclosed is an ink composition containing at least one reactive dye serving as a coloring matter, which also contains water and a compound represented by formula (1) and having an average molecular weight of 340-2,200. (1)
[In the formula, X1, X2, X3 and X4 independently represent a hydrogen atom or a methyl group; and the sum of j, k, m and n is a number not less than 4 but not more than 40.]
本发明公开了一种活性
染料墨
水,该墨
水用于需要高粘度墨
水的商用喷墨头打印机时,可表现出极佳的喷出稳定性。该活性
染料墨
水具有极佳的储存稳定性和对纺织品的极佳固定性。具体公开了一种墨
水组合物,该墨
水组合物含有至少一种用作
着色剂的活性
染料,还含有
水和式(1)表示的化合物,其平均分子量为 340-2,200 。(1)
[式中,X1、X2、X3 和 X4 分别代表氢原子或甲基;j、k、m 和 n 的总和为不小于 4 但不大于 40 的数字。]