Electrostatic inks and printing

US9657189B2 · kind B2 · utility

Assignee

• Hewlett-Packard Indigo B.V. · NL

Inventors

• Eyal Negreanu · Nes Ziona, IL
• Rada Nuchimov · Nes Ziona, IL
• Vladislav Kaploun · Nes Ziona, IL
• Gregory Katz · Seattle, US
• Inbar Adi · Rehovot, IL
• Yaron Grinwald · Gdera, IL
• Reut Avigdor · Nes Ziona, IL

Key dates

• Filing date: May 31, 2012
• Grant date: May 23, 2017
• Expiry date: May 31, 2032

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/24901
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

There is provided a method of producing an electrostatic ink composition, the method comprising: mixing a resin, a liquid carrier, and a conductive metallic pigment having a coating of surfactant thereon, to form an electrostatic ink composition comprising the resin and the conductive metallic pigment dispersed in the liquid carrier. An electrostatic ink composition and a substrate are also described.