Invention Grant
US08268064B2 Ink-jet inks and ink sets exhibiting reduced bleed, wicking, and/or halo effect and associated methods 有权
喷墨油墨和油墨组显示减少的渗色,芯吸和/或光晕效应及相关方法

Ink-jet inks and ink sets exhibiting reduced bleed, wicking, and/or halo effect and associated methods
Abstract:
Compositions, systems, and methods for ink-jet printing having improved black to color bleed control, reduced wicking, and/or reduced halo are described. The composition can include a functionalized carbon pigment dispersed in an ink vehicle. The carbon pigment includes functional groups chemically attached thereto. Suitable functional groups includes an aromatic ring structure having multiple carboxyl groups (or salts thereof) attached to the aromatic ring structure, wherein at least two of the multiple carboxyl groups are positioned on adjacent carbon atoms of the aromatic ring structure.
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