Coloration with azo carboxy pyrazolone

Details Coloration with azo carboxy pyrazolone Coloration with azo carboxy pyrazolone

1974-01-28

1976-11-23

Henderson, Jr., Christopher A.

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Tanning

8 1D, 8 1E, 260153, 260154, D06P 139, D06P 1382, D06P 118

Patent

active

039934403

ABSTRACT:
A process for the coloration of polyamide textile materials which comprises treating a polyamide textile material with an aqueous solution of an azo dye of the formula: ##SPC1##
Wherein A represents the residue of a diazo component of the benzene or naphthalene series; X represent =N--, ##EQU1## Y represents chlorine or bromine; Q.sup.1 represents --O-- or --S--; Q.sup.2 represents a direct link, --O--, --CO--, --SO.sub.2 --, --SO.sub.2 NH--, --NHSO.sub.2 --, --CONH--, --NHCO--, --COO--, --OCO--, --SO.sub.2 --, --S-- or --NR.sup.4 -- in which R.sup. 4 represents hydrogen or lower alkyl; R.sup. 1 represents an alkylene, cycloalkylene or arylene radical; R.sup.2 represents an optionally substituted alkyl, cycloalkyl, aralkyl or aryl radical such that R.sup.1 and R.sup. 2 together contain not more than 13 carbon atoms; R.sup.3 represents hydrogen or lower alkyl and ring B may carry one or more substituents.

REFERENCES:
patent: 2892671 (1959-06-01), Alsberg
patent: 3709869 (1973-01-01), Mazza
patent: 3758470 (1973-09-01), Ackermann

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