Ink base for pigmented inks, inks manufactured therefrom and their use

US6884287B2 · kind B2 · utility

Assignee

• J.S. STAEDTLER GMBH & CO. KG · DE

Inventors

• Anke Müller · Bayreuth, DE
• Manuela Geis · Koblenzer Straße, DE
• Stefan Engel · Aachen, DE

Key dates

• Filing date: Nov 19, 2003
• Grant date: Apr 26, 2005
• Expiry date: Nov 19, 2023

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09D17/002
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

An ink base for producing pigmented inks having a water base contains a drying retarder and a pH adjusting agent. The drying retarder contains at least diethylene glycol, 1,6-hexane diol, and pentaerythritol. The pH adjusting agent (PH) contains at least one amine. The ink base contains at least 30.0-95.5% by wt. diethylene glycol; 3.0-40.0% by wt. 1,6-hexane diol; 0.01-3.0% by wt. pentaerythritol; and 1.5-15.0% by wt. amine(s).