Ink-jet inks for neutral black printing

Details Ink-jet inks for neutral black printing Ink-jet inks for neutral black printing

2007-04-30

2011-10-18

Shah, Manish S (Department: 2853)

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

C347S095000, C347S096000, C106S031270

Reexamination Certificate

active

08038279

ABSTRACT:
Ink, ink sets, and methods of printing are provided. The inks can include an aqueous solvent system including from about 5 wt % to about 20 wt % organic co-solvent, from about 2 wt % to about 5 wt % black dye, and a dye selected from cyan, magenta, and yellow dyes. The ink can be formulated such that upon printing on a print medium, the printed ink or inks can maintain a neutral black, defined by a chroma value of less than 7. This neutral black can be maintained such that the printed ink or image has a chroma value of less than 7 for substantially all L* values ranging from about 7 to about 12.

REFERENCES:
patent: 6558459 (2003-05-01), Schut
patent: 2002/0121219 (2002-09-01), Stramel et al.
patent: 2004/0216638 (2004-11-01), Rolly
patent: 2004/0261658 (2004-12-01), Rehman
patent: 2005/0209366 (2005-09-01), Hermansky
patent: 2005/0235867 (2005-10-01), Jackson et al.
patent: 2005/0250869 (2005-11-01), Claes et al.
patent: 2007/0296786 (2007-12-01), Ham et al.
patent: 1 491 594 (2004-12-01), None
patent: 1 593 718 (2005-11-01), None

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