Patent ID: 8987348
Filing Date: 2015-03-24
Classification: B41M,C09D

Abstract:
1. An ink jet ink comprising: a polymer; and a surfactant, wherein the acid value of the polymer is from 100 mg KOH/g to 220 mg KOH/g, and a weight-average molecular weight of the polymer is from 3,000 to 10,000, wherein a content (% by mass) of the polymer in the ink is at least 2.0% by mass but less than 3.5% by mass based on a total mass of the ink, wherein a content (% by mass) of the surfactant in the ink is from 0.10% by mass to 0.35% by mass based on the total mass of the ink, and wherein 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.