US 12,109,830 B2
Ink jet ink composition and recording method
Keigo Ando, Matsumoto (JP)
Assigned to SEIKO EPSON CORPORATION, (JP)
Filed by SEIKO EPSON CORPORATION, Tokyo (JP)
Filed on Jul. 1, 2022, as Appl. No. 17/856,249.
Claims priority of application No. 2021-111305 (JP), filed on Jul. 5, 2021.
Prior Publication US 2023/0001726 A1, Jan. 5, 2023
Int. Cl. B41M 5/00 (2006.01); B41J 11/00 (2006.01); C09D 11/033 (2014.01); C09D 11/107 (2014.01); C09D 11/36 (2014.01)
CPC B41M 5/0023 (2013.01) [B41J 11/0021 (2021.01); C09D 11/033 (2013.01); C09D 11/107 (2013.01); C09D 11/36 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An ink jet ink composition which is a water-based ink, the ink composition comprising:
a colorant;
a surfactant;
a fixing resin; and
an organic solvent,
wherein the surfactant includes a silicone-based surfactant having an HLB value of 10.5 or less,
the fixing resin includes an acrylic-based resin having a glass transition temperature of 35° C. to 95° C.,
the organic solvent includes a 1,2-alkanediol having 4 carbon atoms or less and an alkanediol having diols at both terminals and 3 to 5 carbon atoms, and
a mass ratio (B/A) of a content B of the alkanediol having diols at both terminals and 3 to 5 carbon atoms with respect to a total mass of the ink composition to a content A of the 1,2-alkanediol having 4 carbon atoms or less with respect to the total mass of the ink composition is 0.1 to 1.5.