A dye used in printing inks which comprises either Methyl Violet reacted with tungsten or molybdenum compounds, or Dioxazine Violet (RL) Carbazole Violet, which possesses a high degree of lightfastness.
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A dye used in printing inks which comprises either Methyl Violet reacted with tungsten or molybdenum compounds, or Dioxazine Violet (RL) Carbazole Violet, which possesses a high degree of lightfastness.