| 主权项 |
1. An ink composition for ink jet textile printing, comprising:
12-24% of a reactive dye mixture, wherein the reactive dye mixture comprises C.I. Reactive Black 39 and one of C.I. Reactive Orange 99 and C.I. Reactive Brown 11, and the proportion of the C.I. Reactive Black 39 content to the total content of C.I. Reactive Orange 99 or C.I. Reactive Brown 11 is 2.7 or in the range of 3.0 to 3.5; and a water-soluble organic solvent comprising at least one solvent selected from the group consistingof 5-15% of solvent A, wherein solvent A is selected from the group consisting of urea, trimethylglycine, 2-pyrrolidone, ethyleneurea, γ-butyrolactone, 3-methoxy-N,N-dimethylpropaneamide, and 3-butoxy-N,N-dimethylpropaneamide, each of which has a solubility of 10 g in 100 g water at 20° C. and whose molecule has no hydroxy group, and 3-8% solvent B, wherein solvent B is selected from the group consisting of triethylene glycol, glycerol, and polyethylene glycol, each of which has an IOB value of 2.9 or more and a Z1 value of 18 or less and whose molecule has a hydroxy group,
wherein the Z1 value is expressed by the following equation:Z1=∑i=1n(100*Ii*Xi)(1) wherein n represents the total number of solvent B in the ink composition, Ii represents the IOB value of solvent Bi that is any one of the solvent B, and Xi represents the ratio of the mass of solvent Bi to the total mass of the ink composition. |
