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:
Jun. 23, 1998
Filed:
Oct. 31, 1997
Kurt B Gundlach, Fairport, NY (US);
Luis A Sanchez, Fairport, NY (US);
Cheryl A Hanzlik, Fairport, NY (US);
Kathy-Jo Brodsky, Palmyra, NY (US);
Richard L Colt, Rochester, NY (US);
Aileen M Montes, Rochester, NY (US);
Xerox Corporation, Stamford, CT (US);
Abstract
Disclosed is an ink composition which comprises water, an anionic dye having at least one anionic functional group and having a cationic counterion associated with each anionic functional group, and a material of the formula �(F.sub.2n+1 C.sub.n CH.sub.2 S).sub.2 (CH.sub.3)C--CH.sub.2 CH.sub.2 COO--!�B+!, wherein n is an integer of from about 8 to about 20 and B is a cation, said ink composition containing alkali metal cations in an amount of no more than about 1.times.10.sup.-3 moles per liter. Also disclosed are ink jet printing processes employing the aforementioned ink.