Patent ID: 9284465
Filing Date: 2016-03-15
CPC Classification: C08K,C09D

Claim Text:
1. An ink composition for ink jet recording, comprising: water; a coloring material; and three or more kinds of acetylene glycol-based surfactant selected from the group consisting of acetylene glycol represented by the following general formula (1), and an ethylene oxide adduct of acetylene glycol represented by the following general formula (2), wherein a total content of the acetylene glycol-based surfactant is 0.1% by mass to 3% by mass with respect to the total mass of the ink composition (in the general formula (1), each of R 1 and R 2 independently represents an alkyl group having 1 to 5 carbon atoms) (in the general formula (2), each of R 3 and R 4 independently represents an alkyl group having 1 to 5 carbon atoms, each of m and n independently represents an integer of 0.5 to 25, and m+n is 1 to 40), wherein the acetylene glycol-based surfactant includes one or more kinds of acetylene glycol represented by the above general formula (1) and two or more kinds of ethylene oxide adduct of acetylene glycol represented by the above general formula (2).