Fujifilm Imaging Colorants, Inc.

Fujifilm Corporation

Toshiba America Business Solutions, Inc.

David Phillip Devonald

Toshiki Fujiwara

Clive Edwin Foster

Shuitsu Sato

Steven M Rice

A compound of Formula (1) or a salt thereof: wherein:

Disazo compounds and their use in ink-jet printing

A compound of Formula (1) or a salt thereof: 

Disazo dyes and their use in ink-jet printing

A compound of Formula (1) or a salt thereof:A-N&#x2550;N-D-N&#x2550;N&#x2014;B&#x2014;N&#x2550;N-A&#x2003;&#x2003;Formula (1) Also provided are compositions, inks, ink sets, substrates and cartridges all containing the compound or salt and printing processes using the compound or salt. The compounds and salts are especially useful for ink-jet printing.

Trisazo-dyes with a pyrazolyl end group and their use in ink-jet printing

A process for printing an image on a substrate including applying thereto a composition comprising a liquid medium and a tris-azo compound of Formula (1) or salt thereof: wherein:

Trisazo dyes for inks for ink jet printing

Inks comprising a liquid medium and a tris-azo compound of Formula (1) or salt thereof: wherein the liquid medium comprises water and an organic solvent.

Inks for ink jet printing comprising a tris-azo dye

A substantially chromium-free toner composition which comprises, as a negative charge control agent, one or more complexes of Formula 1: ##STR1## including other acceptable forms of such complex, in which: X+ is H+, Na+ or mixtures thereof; M is Fe or Co; R.sup.1 is sulphonyl or sulphamoyl, substituted by one or more C.sub.1-4 alkyl; and R.sup.2 is carboxy or phenylcarbamoyl, optionally substituted by one or more C.sub.1-4 alkyl; but when R.sub.1 is methylsulphonyl, R.sup.2 is not carboxy.

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Manchester, United Kingdom

David Phillip Devonald