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:
Sep. 04, 2001
Filed:
Apr. 03, 2000
Judith A. Auslander, Westport, CT (US);
Richard A. Bernard, Norwalk, CT (US);
Claude Zeller, Monroe, CT (US);
Pitney Bowes Inc., Stamford, CT (US);
Abstract
An ink composition suitable for printing machine readable indicia on a substrate with an ink jet printing device is disclosed. The disclosed ink composition comprises water, a water soluble resin, a red fluorescent colorant material mixture comprising C.I. Basic yellow 40 dye, C.I. Basic Red 1 dye, and C.I. Basic Violet 11:1 dye, and a blue colorant material comprising C.I. Acid Blue 9. In the preferred embodiments of the ink composition, the dyes in the red fluorescent colorant material mixture are present in a weight ratio of approximately 1.12 to 1.36 to 1, respectively, and the weight ratio of the red fluorescent colorant material mixture to the blue colorant material is in the range of about 3.8 to 1 to about 46 to 1.