| 摘要 |
PURPOSE: Provided is a xylene metal complex colorant with self-dispersion enabled which utilizes steric hindrance by bulky structure of metal complex and anti-static repulsion between charged metal and hydrophilic ligand to improve storage stability when used for a long time. CONSTITUTION: The xylene metal complex colorant with self-dispersion enabled is represented by formula 1, in which X1 and X2 are independently H or C1-C5 alkyl group; Y is -(CH2)r- radical where r is an integer of 1-8 or -(CR2)2-(CH2)p-(CR2)2- radical where p is an integer of 0-6 and R2 is independently H, aryl, silyl, C1-C6 alkyl and C1-C6 alkyl group with aryl group; M is a transition metal; Z is a negative ion of colorant; and W1 to W8 are independently H, C1-C10,000 alkyl group or one compound or salt selected from groups which are composed of -OA, -COOA, -CO-, -SO3A-, -SO2A-, -SO2NH2-. -R1SO2A-, -SO2NHCOR1-, -NH2 and -N(R1)2 where A is one functional group selected from H, alkali metal and organic ammonium and R1 is one substituted or unsubstituted functional group selected from C1-C15 alkyl, phenyl and naphthyl group.
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