Process for dyeing and printing textile materials of synthetic organic fibers

US3964862A · kind A · utility

Assignee

• Ciba-Geigy · US

Inventors

• Purushottam J. Kangle · Gondia, IN
• Hermann Werdenberg · Basel, CH
• Klaus Artz · Muttenz, CH
• Visvanathan Ramanathan · Basel, CH
• Navnitrai Nagirji Naik · Gondia, IN
• Branimir Milicevic · Frauenfeld, CH

Key dates

• Filing date: Sep 21, 1973
• Grant date: Jun 22, 1976
• Expiry date: Sep 21, 1993

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S8/933
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A process for dyeing and printing textile materials made of or containing fully synthetic hydrophobic linear polymers which are free from amino groups, wherein the material is padded with a dispersion dyestuff containing at least one carboxyl group, the padded textile material is dried and printed with an alkaline printing paste, the fabric is thermo-fixed and the salt of the dyestuff containing a carboxyl group is subsequently washed from the printed areas.