US 7,550,039 B2
	Aqueous inkjet ink composition
Richard P. Szajewski, Rochester, N.Y. (US); Gang C. Han-Adebekun, Pittsford, N.Y. (US); Paul H. Munger, Hilton, N.Y. (US); and Paul D. Zimmerman, Rochester, N.Y. (US)
Assigned to Eastman Kodak Company, Rochester, N.Y. (US)
Filed on Dec. 08, 2005, as Appl. No. 11/297,195.
Prior Publication US 2007/0132822 A1, Jun. 14, 2007
Int. Cl. C09D 11/02 (2006.01)

U.S. Cl. 106—31.6  [106/31.65]

18 Claims

1. An inkjet ink comprising water, a first self-dispersing pigment, and a second self-dispersing pigment, wherein said first self-dispersing pigment comprises a charged group bonded directly to the surface thereof, and said second self-dispersing pigment comprises a charged group bonded through a linking group to the surface thereof.