Unsymmetrical phenyl azo naphthyl chromium complex dyes

Details Unsymmetrical phenyl azo naphthyl chromium complex dyes Unsymmetrical phenyl azo naphthyl chromium complex dyes

1976-08-04

1977-10-11

Higel, Floyd D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260146R, 260145A, 260150, C09B 4516, D06P 110, D06P 324, D06P 332

Patent

active

040534626

ABSTRACT:
Chromium complex dyes which, in the form of their free acid, have the formula ##STR1## wherein one X represents the sulphonic acid group and the other X represents the nitro group, Y is a sulfone or sulfonamide group and Z is an acyl group. The dyes are suitable for dyeing natural and synthetic polyamides to produce dyeings which are level and have good fastness to light, perspiration, fulling, decatizing and carbonizing.

REFERENCES:
patent: 2610175 (1952-09-01), Widmer et al.
patent: 2806760 (1957-09-01), Brassel et al.
patent: 2814614 (1957-11-01), Zickendraht
patent: 2820784 (1958-01-01), Zickendraht et al.
patent: 2906746 (1959-09-01), Brassel et al.
patent: 3005813 (1961-10-01), Brassel et al.
patent: 3153642 (1964-10-01), Ziegler et al.
patent: 3356671 (1967-12-01), Johnson et al.

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