3m Innovative Properties Company

Richard L Rosenberg

Bruce A Nerad

An ink set is disclosed that comprises a first ink composition containing a first colorant, and a second ink composition containing a second colorant, wherein the first colorant is different from the second colorant; wherein each ink composition, when printed at 100% fill on the same substrate, produces a color having a hue angle, h&#xb0;, and a lightness relative to that of the substrate, &#x394;L*, according to:=tan()&#x394;wherein n=1 or 2 for the first and second ink compositions, respectively; h&#xb0;and h&#xb0;differ from each other by no more than 15&#xb0;; and &#x394;L*&#x3e;&#x394;L*. An ink jet printing method that employs the ink set is also disclosed, as well as a printed image prepared with the ink set.

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Woodbury, MN, United States of America

Richard L Rosenberg