Process for treating textile materials

US6737391B2 · kind B2 · utility

Assignee

• Ciba Specialty Chemicals Corporation · US

Inventors

• Frank Bachmann · Glückstadt, DE
• Josef Dannacher · Basel, CH
• Cornelia Makowka · Laufenbürg, DE
• Gunther Schlingloff · Östringen, DE
• Peter Weingartner · Dölsach, AT
• Grit Richter · Neuenbürg, DE

Key dates

• Filing date: May 7, 2002
• Grant date: May 18, 2004
• Expiry date: May 7, 2022

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D3/3932
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A process for preventing the redeposition of migrant dyes in a washing liquor by adding to each liter of the washing liquor, which comprises a peroxide-containing detergent, from 0.5 to 150 mg of one or more asymmetric manganese complexes of the salen type.