Process for treating textile materials

US6387863B1 · kind B1 · utility

Assignee

• Ciba Specialty Chemicals Corporation · US

Inventors

• Menno Hazenkamp · Riehen, CH
• Frank Bachmann · Glückstadt, DE
• Cornelia Makowka · Laufenbürg, DE
• Marie-Josee Dubs · Wittersdorf, FR
• Grit Richter · Neuenbürg, DE
• Gunther Schlingloff · Östringen, DE
• Josef Dannacher · Basel, CH
• Peter Weingartner · Dölsach, AT

Key dates

• Filing date: Sep 4, 2001
• Grant date: May 14, 2002
• Expiry date: Sep 4, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D3/3947
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The inventions is drawn to mixtures of manganese complexes and organic ligands which significantly improve the bleaching effect of hydrogen peroxide in washing liquours and prevent the reabsorption of migrating dyes in peroxide-containing washing liquors.