E.i. Dupont De Nemours and Company

Kuo Hsiung Kung

Christian Jackson

Jose Esteban Valentini

James Walter Wheeler

William Thomas Hall

Richard Douglas Bauer

John Stephen Locke

James A Silver

Sandra Laurine Issler

Michael J Eiseman

John C Hornby

The present invention pertains to a magenta inkjet ink and to an inkjet ink set for inkjet printing comprising the magenta ink and further comprising a yellow and cyan inkjet ink. The magenta ink and the other inks in the ink set are characterized by the presence of certain specific colorants. The magenta ink comprises a certain magenta dye defined in the specification and either one or both of Acid Red 52 and Acid Red 249. The yellow ink comprises Acid Yellow 79 and one or any combination of Direct Yellow 169, Direct Yellow 86 and Acid Orange 33. The cyan ink comprises Direct Blue 199. The magenta ink and the ink set are particularly advantageous for printing on plain and photo-glossy paper.

Magenta inkjet ink and an inkjet ink set containing same

The present invention pertains to an aqueous-based black inkjet ink comprising a mixture of Direct Black 168, Acid Blue 290 and a certain magenta dye. The ink exhibits good color neutrality and gray scale.

Black inkjet ink

The present invention pertains to a cyan dye-based inkjet ink having substantially no absorption in the near-infrared region of the spectrum (near-IR transparent). The invention further pertains to a dye-based inkjet ink set comprising this near-IR transparent cyan ink.

IR transparent cyan inkjet ink

The present invention pertains to a dye-based inkjet ink set with a lightfast cyan ink and, more particularly, to a dye-based inkjet ink set suitable for printing on fabrics, especially polyamide fabric. The present invention also pertains to a method for printing a polyamide fabric with the dye-based inkjet ink set, and a polyamide fabric so printed.

Inkjet ink set

The present invention pertains to a dye-based inkjet ink set and, more particularly, to an ink set with at least six differently colored inks. The ink set includes at least a cyan, magenta, yellow, red, blue and green ink.

Inkjet ink set for improved color reproduction

This invention pertains to an aqueous based magenta inkjet ink with good hue, chroma, optical density, fade resistance, and long latency, comprising a certain specified combination of soluble magenta colorants.

Inkjet ink and ink set

The present invention pertains to a yellow ink for inkjet printing and, in particular, to a yellow ink comprising a combination of specific yellow colorants. The present invention further pertains to an ink set comprising this yellow ink. The ink and ink set are particularly advantageous for printing on plain paper.

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Wilmington, DE, United States of America

Kuo Hsiung Kung