To provide an ink jet ink capable of achieving both high colorability and excellent bleeding resistance of an image and having excellent storage stability, provided is an ink jet ink including at least a pigment and a star polymer having a structure represented by at least one formula selected from the group consisting of the following general formulae (1) to (3).
R
1
—(S—R
1
′)
n1
General formula (1)
R
2
—(X—S—R
2
′)
n2
General formula (2)
R
3
—(O—X—S—R
3
′)
n3
General formula (3)
提供一种墨
水喷射墨
水,能够实现高色彩性和优异的图像抗渗透性,并具有优异的储存稳定性,所提供的墨
水喷射墨
水包括至少一种
颜料和具有下列通式(1)至(3)中所选至少一种的结构的星形聚合物。其中通式(1)为R1—(S—R1′)n1,通式(2)为R2—(X—S—R2′)n2,通式(3)为R3—(O—X—S—R3′)n3。