Pigment preparations useful for ink-jet printing

US6077339A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Roger Nyssen · Dormagen, DE
• Dirk Pfutzenreuter · Leverkusen, DE
• Rolf Richter · East Greenwich, US
• Fritz Puchner · Cologne, DE
• Karin Hassenruck · Mülheim an der Ruhr, DE

Key dates

• Filing date: Oct 20, 1997
• Grant date: Jun 20, 2000
• Expiry date: Oct 20, 2017

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K23/16
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to a method for ink-jet printing with a printing ink containing a pigment preparation containing PA1 (a) water PA1 (b) a dispersing agent, and PA1 (c) at least one pigment consisting of a barbituric acid substituted by radicals containing methine or azo groups or a derivative thereof, preferably present as a salt or a complex, a solid solution, an inclusion compound, or an intercalation compound.