Bleaching and dyeing; fluid treatment and chemical modification – Treatment of hides – skins – feathers and animal tissues – Tanning
Patent
1976-06-01
1977-12-13
Clingman, A. Lionel
Bleaching and dyeing; fluid treatment and chemical modification
Treatment of hides, skins, feathers and animal tissues
Tanning
8 1L, 8 21C, 8 41C, 8179, 260158, 8 1T, 8 41R, 8 41B, 8 94A, 260192, D06P 138, C09B 2936
Patent
active
040626423
ABSTRACT:
Process for the dyeing and printing of synthetic fibrous materials, wherein the said fibrous materials are treated with an aqueous dispersion, an aqueous padding liquor or with a solution in an organic solvent of at least one dyestuff of the formula ##STR1## in which R.sub.1 represents hydrogen, chlorine, lower alkyl or --NH--CO-lower alkyl, R.sub.2 represents hydrogen, lower alkyl or lower alkoxy, R.sub.3 represents lower alkyl, lower alkylene-OH, lower alkylene-CN, --CH.sub.2 --CBr.dbd.CH.sub.2, ##STR2## or lower alkylene-COO-lower alkyl, R.sub.4 represents hydrogen, bromine or lower alkyl, and R.sub.5 represents hydrogen, lower alkyl or phenyl, this process yielding violet to bluish-green, preferably reddish to greenish dark blue dyeings and prints of high tinctorial strength and excellent fastness properties on the said fibrous materials, such as fibers of linear polyesters, cellulose esters and polyamides.
REFERENCES:
patent: 3455898 (1969-07-01), Seefelder et al.
Deucker Walter
Lowenfeld Rudolf
Clingman A. Lionel
Hoechst Aktiengesellschaft
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