Patent Number: 6,168,655

Title: Colorant stabilizers

Abstract: The present invention is directed to an ink set of inks which have substantially identical light fastness properties. The ink set includes ink compositions containing a colorant and at least one colorant stabilizer. The colorant stabilizer imparts light-stability to the colorant so that the colorant does not fade when exposed to electromagnetic radiation such as sunlight or artificial light. The ink set provides a range of colored inks having similar light-stability.

Inventors: Nohr; Ronald Sinclair (Alpharetta, GA), MacDonald; John Gavin (Decatur, GA)

Assignee: Kimberly-Clark Worldwide, Inc.

International Classification: B41M 5/52 (20060101); B41M 5/50 (20060101); B41M 5/00 (20060101); C09D 011/02 ()

Expiration Date: 01/02/2018