US 11,866,596 B2
Aqueous ink jet composition
Kenji Kitada, Shiojiri (JP); Hiroko Hayashi, Shiojiri (JP); Yasunari Ikeda, Shiojiri (JP); Hisashi Okamura, Shiojiri (JP); Kenta Kikuchi, Suwa (JP); Hirofumi Hokari, Chino (JP); Shinichi Naito, Chino (JP); Kazumasa Otsuki, Matsumoto (JP); Michio Nakamori, Matsumoto (JP); Shinichi Yamamoto, Matsumoto (JP); Seiji Kagami, Chino (JP); and Shigeki Kawada, Shiojiri (JP)
Assigned to SEIKO EPSON CORPORATION
Filed by Seiko Epson Corporation, Tokyo (JP)
Filed on Jan. 29, 2020, as Appl. No. 16/775,317.
Claims priority of application No. 2019-014888 (JP), filed on Jan. 30, 2019.
Prior Publication US 2020/0239718 A1, Jul. 30, 2020
Int. Cl. C09D 11/328 (2014.01); C08K 5/3415 (2006.01); C08K 5/42 (2006.01); C08K 5/1515 (2006.01); C08L 71/02 (2006.01); C08K 5/13 (2006.01)
CPC C09D 11/328 (2013.01) [C08K 5/13 (2013.01); C08K 5/1515 (2013.01); C08K 5/3415 (2013.01); C08K 5/42 (2013.01); C08L 71/02 (2013.01)] 9 Claims
 
1. An aqueous ink jet composition comprising:
at least one dye selected from the group consisting of C.I. Solvent Yellow 160:1, C.I. Disperse Yellow 82, and C.I. Disperse Yellow 184;
a material A which is at least one compound selected from the group consisting of a compound represented by the following formula (1) and a compound represented by the following formula (2);
an anionic dispersant; and
C.I. Acid Yellow 250,

OG Complex Work Unit Chemistry
wherein in the formula (1), R1 represents a hydrocarbon group having six carbon atoms or less or —(CH2)m—NR8R9 in which m represents an integer of six or less, and R8 and R9 each independently represent a hydrogen atom or a hydrocarbon group having six carbon atoms or less, and n represents an integer of one or more, and

OG Complex Work Unit Chemistry
in the formula (2), one of R2 and R3 represents —OH, the other represents —NR4R5 in which R4 and R5 each independently represent a hydrogen atom or a hydrocarbon group having six carbon atoms or less, and n represents an integer of one or more.