Continuous dyeing of polyester fibers and cellulose fibers

US4076497A · kind A · utility

Assignee

• BASF SE

Inventors

• Peter Freyberg · Ludwigshafen, DE
• Dieter Horn · Heidelberg, DE
• Knut Oppenlaender · Ludwigshafen, DE
• Hans-Josef Wolf
• Dieter Distler · Mutterstadt, DE

Key dates

• Filing date: Jan 22, 1976
• Grant date: Feb 28, 1978
• Expiry date: Jan 22, 1996

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S8/922
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

Polyester fibers and cellulose fibers, and blends of these fibers, are dyed continuously with disperse dyes, or dispersed dyes, by continuous application of an aqueous dye liquor which contains, as the essential dyeing assistant, a polyoxyalkylated amine, a polyoxyalkylated amine-oxide and/or a quaternized polyoxyalkylated amine which in 1% strength aqueous solution has a cloud point of not less than 18.degree. C and which is derived from amines which contain at least 2 nitrogen atoms and at least one group which can be oxyalkylated, followed by drying and fixing.