MODIFIED PIGMENTS AND METHODS FOR MAKING AND USING THE SAME

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 oxi...

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Bibliographic Details
Main Authors ULRICH, MARK, KANE, JOHN, OUELLETE, DANIEL, A, SUJEETH, P., K, SROUJI, GABE
Format Patent
LanguageEnglish
French
German
Published 16.09.2009
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Summary: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.
Bibliography:Application Number: EP20070844788