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:
Nov. 17, 1998
Filed:
Jul. 31, 1996
Peter A Caputo, South Orange, NJ (US);
Morton International, Inc., Chicago, IL (US);
Abstract
A highly fluid water-based ink composition that comprises a stable oil-in-water emulsion of a water-reducible solvent dye and solvent, preferably citrus solvent, solution homogeneously dispersed as small finely divided dye-containing oil droplets in an aqueous carrier solution containing an emulsion stabilizer of a water-soluble resin. Water-immiscible solvent dyes, including azo, phthalocyanine, and anthraquinone dyes, are mixed with organic solvents and non-ionic surfactants to form emulsifiable water-reducible true solvent dye-containing solutions. The water-reducible solvent dye solutions are stably emulsified as dye-containing oil droplets in aqueous solutions that contain water, water-soluble resins, and optional organic solvent diluents. The stable oil-in-water ink emulsion is suitable to be ejected through ink-jet printer jet nozzles, or through dispensing tips of felt-tip or roller-ball pens, onto a porous substrate, such as paper, to construct a water-fast printed image on the substrate.