Patent Number: 6,309,452

Title: Wet rub resistant ink compositions

Abstract: A wet rub resistant ink composition comprises, by weight, at least about 15% carrier medium, colorant in an amount of no more than about 20%, and at least about 2% polymeric capsules having central cavities containing water. The composition is substantially free of film-forming resins. The ink composition may be used in combination with other ink compositions having different colors or shades to increase the color gamut of an ink system.

Inventors: Beach; Bradley L. (Lexington, KY), Madhava; Ameeta B. (Mountain View, CA), Pearson; Anna M. (Richmond, KY), Suthar; Ajay K. (Lexington, KY)

Assignee: Lexmark International, Inc.

International Classification: B41M 7/00 (20060101); C09D 11/00 (20060101); B41M 1/18 (20060101); B41M 1/14 (20060101); B41M 5/00 (20060101); C09D 011/00 ()

Expiration Date: 10/30/2018