	US 12,344,749 B2
	Water-based composition and coloring method
Mitsunobu Nakatani, Shiojiri (JP); Kei Hiruma, Chino (JP); and Tomoyuki Ushiyama, Chino (JP)
Assigned to SEIKO EPSON CORPORATION, (JP)
Filed by Seiko Epson Corporation, Tokyo (JP)
Filed on Dec. 27, 2021, as Appl. No. 17/562,083.
Claims priority of application No. 2020-218923 (JP), filed on Dec. 28, 2020.
Prior Publication US 2022/0204785 A1, Jun. 30, 2022
Int. Cl. C09D 11/037 (2014.01); B41M 1/22 (2006.01); C08G 65/08 (2006.01); C08G 65/333 (2006.01); C08K 3/08 (2006.01); C08K 9/06 (2006.01); C09D 11/102 (2014.01); C09D 171/02 (2006.01)

CPC C09D 11/037 (2013.01) [B41M 1/22 (2013.01); C08G 65/08 (2013.01); C08G 65/33303 (2013.01); C08K 3/08 (2013.01); C08K 9/06 (2013.01); C09D 11/102 (2013.01); C09D 171/02 (2013.01); C08K 2003/0812 (2013.01); C08K 2201/003 (2013.01); C08K 2201/011 (2013.01)]

12 Claims

1. A water-based composition comprising:

a metal pigment;

a polyoxyalkylene amine compound; and

a water-based medium, wherein

the metal pigment is formed of a plurality of metal particles,

the metal particles are surface-modified by a surface treatment agent that includes a hydrophobic phosphorous-based surface treatment agent, and

a content of the polyoxyalkylene amine compound is 0.1 parts by mass or more and 50 parts by mass or less with respect to 100 parts by mass of the metal particles.