Reactive metal formazan blue dye.

摘要

A reactive metal formazan blue dye represented by a free acid of the formula,
<Chemistry id="chema01" num="0001"><Image id="ia01" he="47" wi="105" file="IMGA0001.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry>wherein A<Sub>1</Sub> and A<Sub>2</Sub> are independently a substituted or unsubstituted phenylene or naphthylene group, B is a straight or branched alkyl or alkenyl group, a phenyl group, a naphthyl group or a heterocyclic group, the alkyl, alkenyl, phenyl, napthyl and heterocyclic group being substituted or <!-- EPO <DP n="2"> -->unsubstituted, Me is an ion of metal identified by an atomic number of 27 to 29, X is -O- or
<Chemistry id="chema02" num="0002"><Image id="ia02" he="13" wi="37" file="IMGA0002.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry>Y is a halogen atom, Z is a group capable of imparting water solubility, each of I, m and n is 0 or an integer of 1 to 3, provided that the sum of I, m and n is from 1 to 4, D is a substituted or unsubstituted phenylene or naphthylene group, R is a substituted or unsubstituted lower alkyl group, and Q is -S0<Sub>2</Sub>CH = CH<Sub>2</Sub> or -S0<Sub>2</Sub>CH<Sub>2</Sub>CH<Sub>2</Sub>L in which L is a group capable of being spitted by the action of alkali. Process for his preparation and his use for dyeing hydroxy- or amido-containing fiber materials.