	US 12,077,673 B2
	Recording liquid set, printed matter producing method, and printed matter
Mayuko Hayamizu, Tokyo (JP); Yuki Sasaki, Tokyo (JP); and Shunsuke Nakamura, Tokyo (JP)
Assigned to artience Co., Ltd., Tokyo (JP); and TOYOCOLOR CO., LTD., Tokyo (JP)
Appl. No. 18/289,154
Filed by artience Co., Ltd., Tokyo (JP); and TOYOCOLOR CO., LTD., Tokyo (JP)
PCT Filed Mar. 1, 2023, PCT No. PCT/JP2023/007624 § 371(c)(1), (2) Date Nov. 1, 2023, PCT Pub. No. WO2023/195274, PCT Pub. Date Oct. 12, 2023.
Claims priority of application No. 2022-063223 (JP), filed on Apr. 6, 2022.
Prior Publication US 2024/0218198 A1, Jul. 4, 2024
Int. Cl. C09D 11/40 (2014.01); B41M 5/00 (2006.01); C09D 11/033 (2014.01); C09D 11/108 (2014.01); C09D 11/322 (2014.01); C09D 11/54 (2014.01)

CPC C09D 11/40 (2013.01) [B41M 5/0017 (2013.01); C09D 11/033 (2013.01); C09D 11/108 (2013.01); C09D 11/322 (2013.01); C09D 11/54 (2013.01)]

10 Claims

1. A recording liquid set, comprising:

a pretreatment liquid; and

an aqueous white inkjet ink, wherein

the pretreatment liquid contains a cationic component, a resin (excluding water-soluble cationic polymers) (PP), and water,

the cationic component is a polyvalent metal ion and/or a water-soluble cationic polymer,

the aqueous white inkjet ink contains a white-colored colorant, an organic solvent (WS), and water,

the aqueous white inkjet ink has a static surface tension of 20 to 40 mN/m at 25° C.,

the aqueous white inkjet ink has a static surface tension at 25° C. that is greater than a static surface tension at 25° C. of the pretreatment liquid, and

when an amount of the white-colored colorant in the aqueous white inkjet ink is MWC (% by mass) and an amount of the cationic component in the pretreatment liquid is MPC (% by mass), a value represented by MWC/MPC is 15 to 100.