Process for the pretreatment of soiled fabrics

US4931063A · kind A · utility

Assignee

• Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

• Heinz-Manfred Wilsberg · Goldkronach, DE
• Georg Bosserhoff · Langenfeld, DE
• Rolf Puchta · Haan, DE
• Herbert Bucheler · Erkrath, DE

Key dates

• Filing date: Mar 23, 1989
• Grant date: Jun 5, 1990
• Expiry date: Mar 23, 2009

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D3/2044
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Heavily soiled fabrics are pretreated before the actual washing process by applying a paste containing a mixture of a nonionic surfactant, at least one nitrogen containing compound selected from certain quaternary ammonium compounds, fatty amine ethoxylates and substituted aminocarboxylic acids, and also an antigel agent and a viscosity regulator to the fabrics and subsequently washing the fabrics in a wash liquor. In one preferred embodiment of the process, a distributing aid trimmed in particular with bristles is used to apply the paste.