Electrostatic ink compositions

US10344175B2 · kind B2 · utility

Assignee

• HP INDIGO B.V. · NL

Inventors

• Biana Noikas · Rehovot, IL
• Dror Kella · Rehovot, IL
• Adi Vinegrad · Nes Ziona, IL
• Regina Guslitzer · Nes Ziona, IL
• Yaron Grinwald · Gdera, IL
• Gil Bar-Haim · Holon, IL
• Tehila Ben-Ezra · Nes Ziona, IL
• Avishai Moshel · Nes Ziona, IL
• Emad Masoud · Nes Ziona, IL
• Yelena Litichevski · Nes Ziona, IL
• Roi Liraz · Nes Ziona, IL
• Noam Parvin · Nes Ziona, IL

Key dates

• Filing date: Jul 17, 2015
• Grant date: Jul 9, 2019
• Expiry date: Jul 17, 2035

Classification

• Technology area (CPC G): Physics
• CPC primary: G03G9/13
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Herein is disclosed an electrostatic ink composition. In some examples, the electrostatic ink compositions comprise: a carrier liquid; a first resin; and a fluorescent pigment. The fluorescent pigment comprising a fluorescent dye and a second resin matrix, wherein the second resin is selected from the group comprising polyamide resins, polyvinylchlorides, polyolefin resins, polystyrenes, acrylonitrile-butadiene-styrene resins, polycarbonates, poly acrylic and methacrylic acid resins, polyethylene terephthalates, polyamide resins, polyurethanes, epoxy resins, silicone resins, polyester resins, alkyd resins, acrylonitrile polymers, polyesteramides or combinations thereof.