Pigmented inkjet ink
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United States of America Patent
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Feb 21, 2006
Grant Date -
Jan 20, 2005
app pub date -
Jul 16, 2003
filing date -
Jul 16, 2003
priority date (Note) -
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Abstract
The present invention provides pigmented inks comprising self-dispersing pigment and an amino-containing compound. The addition of an amino-containing compound to the self-dispersing pigment can improve the reliability and performance of the ink in an inkjet printhead. The present invention also provides methods for making a surface modified pigment comprising associating a self-dispersing pigment with an amino-containing compound having no more than one primary amino group or one secondary amino group.
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