US 7,488,381 B2
	Inkjet ink
Christian Jackson, Wilmington, Del. (US)
Assigned to E.I. du Pont de Nemours & Company, Wilmington, Del. (US)
Filed on Sep. 10, 2007, as Appl. No. 11/900,173.
Claims priority of provisional application 60/843667, filed on Sep. 11, 2006.
Prior Publication US 2008/0060547 A1, Mar. 13, 2008
Int. Cl. C09D 11/02 (2006.01); B41J 2/01 (2006.01)

U.S. Cl. 106—31.43  [106/31.47; 106/31.49; 106/31.58; 347/100]

7 Claims

1. An ink-jet ink comprising an aqueous vehicle and a dye soluble in said aqueous vehicle, wherein said aqueous vehicle is comprised of water and 1,1-diethylurea and said diethyl urea is present in an amount of at least 4.5 weight %, based on the total weight of ink, and wherein the dye comprises Direct Blue 199, Direct Yellow 132 or a combination of Direct Blue 199 and Direct Yellow 132.