Lexmark International, Inc.

Kathryn E Burns

Bradley Leonard Beach

Agnes Kam Zimmer

Ann M Piekunka

Paul Timothy Spivey

James F Feeman

Terence E Franey

Aqueous inks containing 1,2-alkyl of from C4 to C10 diols, specifically 1,2-hexanediol or 1,2-pentanediol are employed in jet inks. Two such inks of different colors applied side-by-side to paper do not bleed and therefore give excellent image definition. The diols are not flammable, odorous or highly volatile.

Inks used in multi-color printing

A water-soluble dye for a color subtractive, lightfast, wide spectrum ink as follows: ##STR1## wherein: X is ##STR2## R.sub.1 is: an aliphatic radical having from 1 to 18 carbon atoms; the radical ##STR3## in which R.sub.2 is --H, -lower alkyl of 1 to 4 C atoms, -lower alkoxy, -halogen, --NO.sub.2 --CN, --CO.sub.2 H;

Magenta dye, jet ink, and color set

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Lexington, KY, United States of America

Kathryn E Burns