Hewlett-packard Development Company, L.p.

Tayo Olu Yolemi

George Sarkisian

Keshava A Prasad

Christopher O Oriakhi

John M Gardner

Sukanya Rengaswamy

John Morrow Gardner

The present disclosure is drawn to ink-jet ink sets, as well as related systems and methods. In one example, an ink set for ink-jet printing can comprise a cyan ink-jet ink including from about 2 wt % to about 5 wt % of a cyan pigment admixed in a first ink vehicle; a magenta ink-jet ink including a magenta colorant comprising from about 2 wt % to about 5 wt % of a magenta pigment and about 0.1 wt % to about 1 wt % of a slightly soluble magenta dye admixed in a second ink vehicle; and a yellow ink-jet ink including from about 2 wt % to about 5 wt % of a yellow pigment admixed in a third ink vehicle.

Ink sets for ink-jet printing

An ink composition includes an aqueous dispersion of particles of a first material and separate particles of a second material. The first material contains an oxide, sulfide, or selenide of a magnetic metal. The ink is formulated to exhibit, after application to a solid substrate, a degree of metallic luster enhanced by the presence of the second material.

Ink compositions and methods of use

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San Diego, CA, United States of America

Tayo Olu Yolemi