Pigment combinations for inks for the intaglio printing of illustrations, having improved rheological properties

US6110267A · kind A · utility

Assignee

• Clariant Corporation · DE

Inventors

• Rainer Winter · Oberursel, DE
• Ibrahim Zidan · Liederbach, DE
• Ulrich Ott · Hofheim, DE
• Alexander Sieber · Frankfurt am Main, DE

Key dates

• Filing date: Mar 16, 1998
• Grant date: Aug 29, 2000
• Expiry date: Mar 16, 2018

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B67/0041
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

An intaglio ink for printing illustrations comprises C.I. Pigment Yellow 139 and further, preferably chlorine-free organic yellow pigments and has good rheological and coloristic properties which are comparable with those of conventional intaglio printing inks based on C.I. Pigment Yellow 12.