Patent ID: 7997714

Claim:
A system for printing an image on a glossy media substrate with variable levels of gloss from a single ink set, comprising: a) a glossy media substrate; b) an ink set, comprising: i) at least one pigmented ink-jet ink including an anionic surface charged pigment dispersed in a first liquid vehicle; and ii) a substantially colorless matting liquid with at least one matting agent dispersed or solvated in a second liquid vehicle, wherein when the pigmented ink-jet ink is printed on the glossy media substrate alone, the pigmented ink jet ink has a glossy appearance, and wherein when the colorless matting liquid is overprinted or underprinted with respect to the pigmented ink-jet ink on the glossy media substrate, the pigmented ink-jet ink combined with the matting liquid exhibits a visually perceptible increased matte appearance compared to the glossy appearance.