Bleaching and dyeing; fluid treatment and chemical modification – Dye or potential dye composition – additive – treatment,... – Mixed dyes – noncomplexed
Patent
1990-07-19
1991-12-31
Ramsuer, Robert W.
Bleaching and dyeing; fluid treatment and chemical modification
Dye or potential dye composition, additive, treatment,...
Mixed dyes, noncomplexed
534573, 534618, C09B 6722, C09B 62503, D06P 1384
Patent
active
050768115
ABSTRACT:
The fibre-reactive formazan dyes of the formula ##STR1## in which R is C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, halogen, cyano or nitro, X is fluorine or chlorine, and n is the number 0, 1 or 2 produce dyeings which have good fastness properties on nitrogen-containing or hydroxyl-containing fibre materials.
REFERENCES:
patent: 3926942 (1975-12-01), Yelland
patent: 4444564 (1984-04-01), Salathe et al.
patent: 4563192 (1986-01-01), Salathe et al.
patent: 4843148 (1989-06-01), Bonometti et al.
patent: 4906736 (1990-03-01), Schwaiger et al.
patent: 4935500 (1990-06-01), Omura et al.
Koller Josef
Lehmann Urs
Ciba-Geigy Corporation
Dohmann George R.
McC. Roberts Edward
Powers Fiona T.
Ramsuer Robert W.
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