Ink additive combinations for improving printhead lifetime

US9546292B2 · kind B2 · utility

Assignee

• Memjet Technology Limited · IE

Inventors

• David Tyvoll · Village of La Jolla, US
• Simon Fielder · Sydney, AU
• Michele Gimona · Chatswood, AU
• Christopher Barton · Coral Springs, US
• Jognandan Prashar · Chatswood, AU
• Michele Shepard · San Diego, US
• Iain Blake · Sydney, AU
• Richard Myors · Sydney, AU
• Luke Grassy · Chatswood, AU

Key dates

• Filing date: Oct 7, 2015
• Grant date: Jan 17, 2017
• Expiry date: Oct 7, 2035

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09C1/0063
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

An inkjet ink for improving printhead lifetimes includes: an aqueous-based ink vehicle; a colorant; an anti-kogation additive; and an anti-corrosion additive having at least one acetylenic group, the acetylenic group being absent any tertiary or quaternary α-carbon atoms.