	US 12,480,016 B2
	Ink kit
Hiroyuki Konishi, Osaka (JP); Ryuta Noda, Osaka (JP); Masaki Murakami, Osaka (JP); Masahiro Ueki, Osaka (JP); and Satoshi Hirakawa, Osaka (JP)
Assigned to SAKATA INX CORPORATION, Osaka (JP)
Appl. No. 18/547,324
Filed by SAKATA INX CORPORATION, Osaka (JP)
PCT Filed Nov. 12, 2021, PCT No. PCT/JP2021/041674 § 371(c)(1), (2) Date Aug. 21, 2023, PCT Pub. No. WO2022/176286, PCT Pub. Date Aug. 25, 2022.
Claims priority of application No. 2021-026501 (JP), filed on Feb. 22, 2021.
Prior Publication US 2024/0124735 A1, Apr. 18, 2024
Int. Cl. C09D 11/54 (2014.01); C09D 11/322 (2014.01); C09D 11/38 (2014.01)

CPC C09D 11/54 (2013.01) [C09D 11/322 (2013.01); C09D 11/38 (2013.01)]

4 Claims

1. An ink kit for inkjet printing, constituted by a pretreatment solution and an ink composition, wherein:

the pretreatment solution contains an organic acid having a boiling point of 120° C. or lower at 1 atmospheric pressure; and

the ink composition contains an alkali-soluble resin having an acid value of 200 mgKOH/g or higher or crosslinked substance thereof accounting for 1.8% by mass or more in the ink composition, and a pigment, and further contains a water-dispersible resin having an acid value of 20 mgKOH/g or lower by 10.0 to 30.0% by mass in solids content in the ink composition, and water.