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Black Colorant for Ink-Jet Printing Ink Ink-Jet Printing Ink and Aqueous Pigment Dispersion Containing the Black Colorant
Black Colorant for Ink-Jet Printing Ink Ink-Jet Printing Ink and Aqueous Pigment Dispersion Containing the Black Colorant
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机译:用于喷墨印刷的黑色着色剂包含黑色着色剂的喷墨印刷油墨和水性颜料分散体
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摘要
PURPOSE: Provided is a black colorant for ink-jet printing ink exhibiting high blackness and an excellent tinting strength, dispersibility and light resistance. An ink-jet printing ink exhibiting excellent dispersion stability and light resistance and an aqueous pigment dispersion containing the black colorant are also provided. CONSTITUTION: The black colorant suitable for ink-jet printing ink, having an average particle diameter of 0.001 to 0.15 micrometers, comprises: an extender pigment as a core particle; an adhesive coating layer formed on at least one part of the surface of the core particle; and a black pigment coat formed on at least one part of the adhesive coating layer. The ink-jet printing ink comprises the black colorant and an ink base solution. Further, the aqueous pigment dispersion comprises 10 to 40% by weight of the black colorant and a base solution for the aqueous pigment dispersion.
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