Blue, red, and yellow dye compounds, and black ink composition comprising the same
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United States of America Patent
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Jun 18, 2013
Grant Date -
Dec 22, 2011
app pub date -
Jun 30, 2010
filing date -
Jun 18, 2010
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Abstract
A novel black ink composition is provided. In the black ink composition of the present invention, the dye compounds include a blue dye compound of formula (I), a red dye compound of formula (II) and a yellow dye compound of formula (III). The black ink composition of the present invention is suitable for inkjet printing to improve light-fastness and printing property.
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