Reactive metal formazan blue dye

Details Reactive metal formazan blue dye Reactive metal formazan blue dye

C - Chemistry, Metallurgy

09

B

260/153, 8/21

C09B 50/00 (2006.01) C09B 62/44 (2006.01) D06P 1/00 (2006.01)

Patent

CA 1208209

ABSTRACT OF THE DISCLOSURE A reactive metal formazan blue dye represented by a free acid of the formula, Image wherein A1 and A2 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 unsubstituted, Me is an ion of metal identified by an atomic number of 27 to 29, X is -O- or Image , Y is a halogen atom, Z is a group capable of imparting water solubility, each of l, m and n is 0 or an integer of 1 to 3, provided that the sum of l, 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 -SO2CH = CH2 or -SO2CH2CH2L in which L is a group capable of being spitted by the action of alkali. This dye is useful for dyeing hydroxy- or amido-containing fiber materials with good build-up and level-dyeing properties to obtain a dyed product of deep blue color having excellent fastness, particularly against light, perspiration-light and chlorine.

432426

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