Sulfo- or carboxy-aryl amino sulfonyl phenyl azo hydroxpyridine heavy metal complex dyes
Abstract
Abstract A heavy metal complex of an azo compound of the formula ##STR1## in which A is a substituted or unsubstituted carboxy- or sulpho-phenyl radical or a carboxy- or sulpho- naphthyl radical, p is 1 or 2, R 1 is hydrogen, chlorine, bromine, nitro, alkyl, alkoxy, aryloxy or acylamino, R 2 is hydrogen or alkyl, R 3 is hydroxyl or amino, R 4 is hydrogen, chlorine, bromine, cyano, amino, amino substituted by 1 or 2 alkyl radicals, arylamino, morpholino, pyrrolidino, piperidino, mercapto, alkylthio, arylthio, sulpho or arylsulphonyl and R 5 is hydrogen, chlorine or bromine and one of the radicals R 1 and --SO 2 --NR 2 --A is bonded to the benzene ring in the 4-position and the other is bonded to the benzene ring in the 5-position or 6-position, and 1 or 2 molecules of the azo compound of the formula (1) are bonded to one atom of copper, nickel, chromium or cobalt; such dyes being suitable for dyeing and printing polyamide materials, such as wool, silk, leather and synthetic polyamides.
Inventors
- 👤 Gerhard Back
- 👤 Alfred Fasciati
Bibliographic Details
Claims Analysis
Total Claims: 7References Cited (Backward Citations)
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