| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an ink jet ink exhibiting such an excellent ejection property that when an ink containing a polymer for improving the scratch resistance of a recorded article is used, the deviation of the ink-droplet impact point on a recording medium is prevented. <P>SOLUTION: The ink jet ink contains a polymer and a surfactant, wherein the acid value of the polymer is from 100 mg KOH/g to 220 mg KOH/g, the weight-average molecular weight of the polymer is from 3,000 to 10,000, and the surfactant has a structure represented by the following formula (1) (wherein, n is a numerical value of from 3 to 27, and m is a numerical value of from 16 to 31). <P>COPYRIGHT: (C)2009,JPO&INPIT |
