Inks used in multi-color printing

US5364461A · kind A · utility

Assignee

• Lexmark International, Inc. · US

Inventors

• Bradley Beach · Lexington, US
• Kathryn E. Burns · Lexington, US
• Terence E. Franey · Lexington, US
• Ann M. Piekunka · Lexington, US
• Paul Timothy Spivey · Lexington, US
• Agnes Kam Zimmer · Lexington, US

Key dates

• Filing date: Oct 28, 1993
• Grant date: Nov 15, 1994
• Expiry date: Oct 28, 2013

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09D11/40
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

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.