	US 12,331,206 B2
	Aqueous inkjet ink composition
Yoichi Sato, Osaka (JP); Hiroyuki Konishi, Osaka (JP); and Kazuki Moriyasu, Osaka (JP)
Assigned to SAKATA INX CORPORATION, Osaka (JP)
Filed by SAKATA INX CORPORATION, Osaka (JP)
Filed on Jun. 18, 2024, as Appl. No. 18/747,139.
Application 18/747,139 is a continuation of application No. 17/278,635, granted, now 12,104,067, previously published as PCT/JP2019/035205, filed on Sep. 6, 2019.
Claims priority of application No. 2018-186993 (JP), filed on Oct. 1, 2018.
Prior Publication US 2024/0336795 A1, Oct. 10, 2024
Int. Cl. C09D 11/00 (2014.01); C08K 3/22 (2006.01); C08K 5/053 (2006.01); C08K 5/17 (2006.01); C09D 11/107 (2014.01); C09D 11/108 (2014.01); C09D 11/12 (2006.01); C09D 11/324 (2014.01); C09D 11/38 (2014.01)

CPC C09D 11/324 (2013.01) [C08K 3/22 (2013.01); C08K 5/053 (2013.01); C08K 5/17 (2013.01); C09D 11/107 (2013.01); C09D 11/108 (2013.01); C09D 11/12 (2013.01); C09D 11/38 (2013.01)]

6 Claims

1. An aqueous inkjet ink composition containing a pigment, an alkali-soluble resin, a polyolefin resin emulsion, a basic compound, an aqueous medium, and a surfactant, wherein

the alkali-soluble resin is a copolymer of acrylic acid/lauryl acrylate/styrene,

a glass transition temperature of the alkali-soluble resin is 45° C. to 95° C.,

an average grain size of the polyolefin resin emulsion is 5 to 300 nm,

a solids content of the polyolefin resin emulsion is 0.5 to 5.0 percent by mass in the aqueous inkjet ink composition, and

the surfactant contains at least an acetylenediol-based surfactant.