Inks for inkjet printers

US9034088B2 · kind B2 · utility

Assignee

• LAMBERTI SPA · IT

Inventors

• Dario Fornara · Novara, IT
• Alan Nappa · Modena, IT
• Tamara Verzotti · Novara, IT
• Paolo Prampolini · Castelnuovo Rangone, IT
• Stefano Crespi · Busto Arsizio, IT
• Giovanni Floridi · Novara, IT
• Giuseppe Li Bassi · Varese, IT

Key dates

• Filing date: Dec 5, 2011
• Grant date: May 19, 2015
• Expiry date: Feb 2, 2032

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09D11/326
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Method for decorating green or fired ceramic bodies by inkjet printing comprising the use of a ceramic inkjet ink which is prepared by milling a ceramic inorganic pigment in an organic medium in the presence of a dispersant which is the reaction product of a polyethyleneimine and a ricinoleic acid polyester, until the average particle size of the pigment is between 0.1 and 0.8 μm.