Patent Number: 6,169,185

Title: Ink jet printing inks

Abstract: Novel water soluble toners for use in ink jet printers, which are stable in water, and which have an acid number of greater than about 175, are provided. The toner, which is preferably fluorescent, is comprised of a novel, cycloaliphatic, polyester dye carrier; and a dye, preferably a fluorescent dye. The invention also relates to an ink which preferably comprises: an humectant, water and a toner dissolved in the water, and a base. The ink preferably has a viscosity less than about 10 cps, preferably less than about 6 cps, most preferably less than about 4 cps. The invention also relates to ink jet cartridges, and ink jet printers, which contain such novel ink, and also to a novel fluorescent yellow dye, which is useful in the novel fluorescent toner and ink jet printer inks. The invention also relates to methods of making such dye, the polyester dye carrier, and the ink jet cartridge.

Inventors: Likavec; Wayne R. (Parma, OH), Jatla; Apparao (Broadview Hts., OH), Waters; John F. (Lakewood, OH)

Assignee: Day-Glo Color Corp.

International Classification: C07D 407/04 (20060101); C07D 407/00 (20060101); C08G 63/00 (20060101); C08G 63/16 (20060101); C09B 23/00 (20060101); C09B 23/10 (20060101); C09B 57/00 (20060101); C09B 67/00 (20060101); C09B 57/02 (20060101); C09D 11/00 (20060101); C09B 67/42 (20060101); G03G 9/087 (20060101); G03G 9/13 (20060101); G03G 9/12 (20060101); C09B 057/02 (); C07D 405/04 ()

Expiration Date: 01/02/2018