Reactive dyes for inkjet printing

US5542972A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Andreas von der Eltz · Frankfurt am Main, DE
• Werner Russ · Flörsheim, DE

Key dates

• Filing date: May 18, 1995
• Grant date: Aug 6, 1996
• Expiry date: May 18, 2015

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B62/503
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Aqueous ink formulations consisting essentially of one or more reactive dyes whose reactive group contains a cyanamido group and an alkaline agent are notable for improved storage stability and are especially suitable for inkier printing.