Reactive formazan dyes and hydrazones

U.S. Patent Number: 5387674

Abstract: There are described formazan dyes of the formula ##STR1## where n is 1 or 2, Kat.sup..sym. is the equivalent of a cation, Me is copper or nickel, X is a radical of the formula CO--O or SO.sub.2 --O, Y is vinyl or a radical of the formula C.sub.2 H.sub.4 --Q, where Q is a group which is detachable under alkaline reaction conditions, the ring A may be substituted and benzofused, the ring B is substituted and may be benzofused, and the ring C may be substituted, the use thereof for dyeing or printing hydroxyl- or nitrogen-containing organic substrates, and novel hydrazones.

Inventors: Marschner; Claus (Speyer, DE), Patsch; Manfred (Wachenheim, DE)

Assignee: BASF Aktiengesellschaft (Ludwigshafen, DE)

Application Number: 08/117,686

Issued: 1995-02-07

Expired: 2007-02-07

Classes: 534/618 ; 558/29; 560/309; 562/57; 562/67; 8/549

Field of search: 534/618 8/549

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