Mixtures of azo dyes for navy to black shades

US5393308A · kind A · utility

Assignee

• BASF SE

Inventors

• Arno Lange · Bad Dürkheim, DE
• Volker Bach · Neustadt, DE
• Clemens Grund · Hattersheim, DE
• Helmut Reichelt · Neustadt, DE
• Paul Anthony Richter · Friedelsheim, DE

Key dates

• Filing date: Sep 24, 1993
• Grant date: Feb 28, 1995
• Expiry date: Sep 24, 2013

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S8/922
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

There are described dye mixtures containing PA1 a) an azo dye of the formula I ##STR1## where Hal is chlorine or bromine, b) the azo dye of the formula II ##STR2## where L is allyl or optionally hydrogen, and c) an azo dye of the formula III and/or IV ##STR3## where R.sup.1 is nitro or substituted or unsubstituted C.sub.1 -C.sub.4 -alkylsulfonyl, PA1 R.sup.2 and R.sup.3 are each hydrogen, chlorine or bromine, PA1 R.sup.4 and R.sup.5 are each hydrogen or chlorine, PA1 R.sup.6 and R.sup.7 are each hydrogen, phenyl or substituted or unsubstituted C.sub.1 -C.sub.4 -alkyl, PA1 X.sup.1 is hydrogen, hydroxyl, methoxy, acetylamino or nitro, PA1 X.sup.2, X.sup.3, X.sup.4 and X.sup.5 are each hydrogen, methyl or methoxy, and PA1 X.sup.6 is hydroxyl, 2-hydroxyethoxy, formyl or methoxycarbonylamino, dye preparations containing the novel dye mixtures, and the use of the novel dye mixtures for dyeing or printing polyesters in textile form.