Ink additives
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Nov 25, 2003
Grant Date -
N/A
app pub date -
Mar 13, 2000
filing date -
Apr 18, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An additive for a pigment based ink--jet printing composition which is used in conjunction with a printing head that comprises metallic components, is disclosed. The additive comprises a cationic component and an anionic component, and characterized in that the cationic component is a cationic surfactant. Preferred additives are those where the cationic component is C.sub.10-22 alkyl trimethyl ammonium. Pigment-based ink--jet printing compositions comprising these additive are also described.
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