| abstract |
An ink for ink jet printing having improved ink thermal stability, improved printer reliability, excellent hiding power, desired color or hue, and mechanical integrity. An aqueous ink comprising: (a) an aqueous liquid ink carrier; and (b) a colorant containing nanodiamond black, wherein the nanodiamond black is substantially surrounded by a graphite shell. A water-based ink comprising a diamond-shaped core, wherein the core is present in an amount of 10 to 70% by weight relative to the total weight of the core and shell. [Selection figure] None |