A water soluble dye of the formula D n wherein Z is of Formula,1, n is 1, 2 or 3 and D is {HEAD ~ the residue} of {TAIL ~ an azo}, anthraquinone, phthalocyanine, triphenodioxazine or formazan chromophore 
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A water soluble dye of the formula D n wherein Z is of Formula,1 , n is 1 , 2 or 3 and D is { HEAD ~ the residue } of { TAIL ~ an azo } , anthraquinone , phthalocyanine , triphenodioxazine or formazan chromophore
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH