E.i. Dupont De Nemours and Company

Dupont Electronics, Inc.

James A Silver

Christian Jackson

Xiaoqing Li

Jose Esteban Valentini

Patrick F McIntyre

C Chad Roberts

Kuo Hsiung Kung

William Thomas Hall

Tristan Williams

John C Hornby

Chad C Roberts

The present invention pertains to an aqueous ink containing mixtures of solvent dyes and disperse dyes suitable for printing on hydrophobic textile substrates.

Aqueous inks containing solvent dyes

The present disclosure pertains to a cyan pigmented inkjet ink and uses thereof in inkjet ink sets and inkjet printing. More particularly, the present disclosure pertains to an ink that is cyan in color and comprises a mixed pigment colorant.

Pigmented cyan inkjet ink

A process for preparing a pigment press cake is provided in which a pigment, a grinding agent, a polyetheramine, and a vehicle are subjected to grinding, followed by removal of the grinding agent and the vehicle to form a press cake. Also disclosed are a process to disperse the press cake with a polymeric dispersant in an aqueous vehicle to form a pigment dispersion and using the dispersion to form an aqueous ink jet ink.

Method of preparing a pigment press cake and uses thereof

A process for preparing a crossed-linked colorant dispersion is provided in which a partially neutralized dispersant polymer having a cross-linkable moiety is used as a dispersant for a colorant by reacting the cross-linkable moiety on the dispersant with a cross-linking agent.

Method of preparing cross-linked colorant dispersions

A process for preparing an aqueous pigment dispersion is provided in which a pigment, a coating agent, a grinding agent and a vehicle are subjected to grinding, followed by removal of the grinding agent and the vehicle to form a press cake, and dispersing the press cake to form a pigment dispersion. Also disclosed is an ink-jet ink containing an aqueous vehicle and the aqueous pigment dispersion thus made.

Method of preparing aqueous pigment dispersions

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.

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Kennett Square, PA, United States of America

James A Silver