| 摘要 |
The present invention relates to an ink for ink-jetting containing at least a coloring material, water soluble organic solvent and water, comprising: 0.01-5.0% by weight of alkylene oxide adduct of acetylene glycol, represented by the formula (A): (in which R1-R4, are respectively an lower alkyl group; l is an integer of 2 or 3; and m and n are respectively an integer of 1 or more); 6.0-14.0% by weight of a compound selected from the group consisting of a polyalcohol having three hydroxy groups, alkylene glycols represented by the formula (B):HO(CxH2xO)yH(B) (in which x and y is respectively an integer, provided that x is 2 or more and x and y have a relation of 2</=Xxy</=6), and a mixture thereof; 4.0-10.0% by weight of a lower alkyl ether of alkylene glycol represented by the formula (C):HO(CpH2pO)qR(C) (in which R is a lower alkyl group, p and q is respectively an integer, provided that p is 2 or more and p and q have a relation of 2</=pxq</=6), or a mixture thereof, 2.0-8.0% by weight of polyalkylene glycol having a molecular weight of 150-600; and water, % by weight being based on total weight of the ink.
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