Metal dye complexes containing an azo or azomethine dye and a colorless ligand with the C.dbd.N--N.dbd.C group

US4680385A · kind A · utility

Assignee

• Ciba-Geigy · US

Inventor

• Gerhard Back · Lörrach, DE

Key dates

• Filing date: Mar 28, 1985
• Grant date: Jul 14, 1987
• Expiry date: Mar 28, 2005

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B55/00
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Metal complex dyes that produce level, fast dyeings on textile materials are provided according to the formula ##STR1## wherein: D is a benzene, naphthalene or heterocyclic radical of a diazo component; PA1 Y is nitrogen or --CH; PA1 K is the radical of a coupling component if Y is nitrogen, or an o-hydroxyaldehyde radical if Y is --CH; PA1 Ka is a cation; PA1 Me is chromium or cobalt; PA1 Z.sub.1 is --O-- or --COO-- ortho to N.dbd.Y PA1 Z.sub.2 is --O-- or --NR vicinal to N.dbd.Y, wherein R is hydrogen or a C.sub.1 -C.sub.4 alkyl or phenyl radical; PA1 R.sub.1 is a direct bond or a C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.8 -alkenyl, or aryl radical or heterocyclic radial containing 1 to 3 sulfur, oxygen or nitrogen atoms; PA1 R.sub.2 is hydrogen or C.sub.1 -C.sub.8 -alkyl or aryl radical; PA1 R.sub.3 is hydrogen or a C.sub.1 -C.sub.8 alkyl, aryl or amino radical, or a heterocyclic radical containing 1 to 3 sulfur, oxygen or nitrogen atoms; PA1 V is a direct bond or oxygen; PA1 Q is oxygen or sulfur; and PA1 w is 0 or 1.