	US 12,486,415 B2
	Ink jet textile-printing ink composition, recording method, and recorded material
Kohei Ishida, Matsumoto (JP); Yasuhiro Oki, Matsumoto (JP); and Tomohiro Aruga, Matsumoto (JP)
Assigned to SEIKO EPSON CORPORATION, (JP)
Filed by SEIKO EPSON CORPORATION, Tokyo (JP)
Filed on Feb. 20, 2023, as Appl. No. 18/111,624.
Claims priority of application No. 2022-024471 (JP), filed on Feb. 21, 2022.
Prior Publication US 2023/0265304 A1, Aug. 24, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. C09D 11/328 (2014.01); B41J 2/01 (2006.01); B41J 2/21 (2006.01); B41M 5/00 (2006.01); C09D 11/38 (2014.01); D06P 1/48 (2006.01); D06P 5/30 (2006.01)

CPC C09D 11/328 (2013.01) [B41J 2/01 (2013.01); B41J 2/2107 (2013.01); B41M 5/00 (2013.01); C09D 11/38 (2013.01); D06P 5/30 (2013.01); D06P 1/48 (2013.01)]

9 Claims

1. An ink jet textile-printing ink composition comprising:

an acidic dye having water solubility of 30 g/L or less at 20° C.;

a water-soluble organic solvent; and

water, wherein

a glycol-based solvent and a cyclic-amide-based solvent are contained as the water-soluble organic solvent,

the cyclic-amide-based solvent contains one or both of ε-caprolactam and N-hydroxyethyl-2-pyrrolidone,

the acidic dye is at least one selected from the group consisting of C.I. Acid Red 407 and C.I. Acid Violet 97,

a content of the glycol-based solvent in the ink jet textile-printing ink composition is denoted as XG (% by mass), a content of the cyclic-amide-based solvent is denoted as XL (% by mass), and

11.7≤XG/XL≤50.0.