Invention Grant
US08163075B2 Inks comprising modified pigments and methods for making and using the same 有权
包含改性颜料的油墨及其制备和使用方法

Inks comprising modified pigments and methods for making and using the same
Abstract:
An ink composition that includes a self-dispersing pigment that has about 0.02 to about 1.0 mMoles of S and about 0.2 to about 2.0 mMoles of active hydrogen per gram of pigment, water, and an organic solvent. A method of making an ink composition that includes sulfonating a pigment, subsequently oxidizing the pigment to produce a modified pigment, and incorporating the modified pigment into an ink.
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