The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 11, 2008
Filed:
Mar. 10, 2005
Bruce A. Nerad, Oakdale, MN (US);
Richard L. Rosenberg, Woodbury, MN (US);
Bruce A. Nerad, Oakdale, MN (US);
Richard L. Rosenberg, Woodbury, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
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°, and a lightness relative to that of the substrate, ΔL*, according to:=tan()Δwherein n=1 or 2 for the first and second ink compositions, respectively; h°and h°differ from each other by no more than 15°; and ΔL*>ΔL*. An ink jet printing method that employs the ink set is also disclosed, as well as a printed image prepared with the ink set.