Water-soluble tris phenyl bisazo dyes for polyamide fibers

Details Water-soluble tris phenyl bisazo dyes for polyamide fibers Water-soluble tris phenyl bisazo dyes for polyamide fibers

1981-06-17

1983-02-22

Higel, Floyd D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260178, 260184, 260207, 2602071, 2602073, C09B 2926, C09B 29085, C09B 31062, D06P 324

Patent

active

043747698

ABSTRACT:
Disclosed are tris phenyl bisazo dyes bearing one or two sulfated alkoxycarbonyl or sulfated alkylcarbamyl groups. These dyes impart yellow to red shades to fibers, particularly polyamides, and are especially useful for dyeing polyamide (nylon) carpets, generally giving good fastness to light, ozone, oxides of nitrogen, washing, sublimation, crocking, and the like, and having good leveling, exhaustion, build properties, and stability to variations in dyeing condition such as pH and temperature.
The present dyes have the general formula: ##STR1## wherein X is --O--, --NH--, --N(alkyl)--, or --N(aryl)--; Z is selected from straight or branched-chain alkylene, and such alkylene containing one or two internal linkages independently selected from ether, amine and amide; M is H, Na, K, or NH.sub.4 ; n is 1 or 2; R.sub.3 is --OH, alkoxy or --NR.sub.8 R.sub.9, wherein R.sub.8 and R.sub.9 are independently selected from H and alkyl and when either R.sub.4 or R.sub.5 is hydroxy or alkoxy ortho to the azo radical, R.sub.3 is further selected from hydrogen, halogen, alkyl, aryl and acylamido; and R, R.sub.1, R.sub.2, R.sub.4, and R.sub.5 are independently selected from hydrogen, halogen, hydroxyl, alkyl, aryl, alkoxy, and acylamido, with the proviso that when R.sub.3 is neither --OH, alkoxy, nor --NR.sub.8 R.sub.9, one of R.sub.4 and R.sub.5 is either hydroxy or alkoxy ortho to the azo radical. These alkyl, alkylene, alkoxy and aryl moieties may be substituted with a wide variety of substituents known to the art.

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