US 12,466,969 B2
Aqueous ink, ink cartridge and ink jet recording method
Hirohiko Yuasa, Kanagawa (JP); Daiji Okamura, Tokyo (JP); Satoru Kobayashi, Kanagawa (JP); and Saki Tasaki, Kanagawa (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Mar. 21, 2023, as Appl. No. 18/187,491.
Claims priority of application No. 2022-056596 (JP), filed on Mar. 30, 2022; and application No. 2023-036748 (JP), filed on Mar. 9, 2023.
Prior Publication US 2023/0312957 A1, Oct. 5, 2023
Int. Cl. C09D 11/322 (2014.01); C09D 11/38 (2014.01)
CPC C09D 11/322 (2013.01) [C09D 11/38 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An aqueous ink for ink jet recording comprising:
a pigment comprising C.I. Pigment Yellow 101; and
a resin dispersant that disperses the pigment,
wherein the resin dispersant has a unit with an aromatic group and a unit with an anionic group.