INK JET INKS CONTAINING NANODIAMOND BLACK COLORANTS HAVING MECHANICAL, THERMAL, AND ELECTRICAL PROPERTIES, CAPABLE OF HAVING A LOW FRICTIONAL COEFFICIENT

摘要

PURPOSE: Ink jet inks are provided to obtain improved thermal stability and excellent hiding power, to offer improved printer reliability to get a desired color, and to have increased mechanical integrity such as abrasion resistance and scratch resistance.;CONSTITUTION: Ink jet inks comprise an ink carrier and a colorant including a nanodiamond black. The nanodiamond black includes a diamond-like core which is surrounded by a graphite shell. The core is included in an amount of 10-70 weight% to a total weight of a core shell. The surface of the graphite shell is modified using one or more functional groups. The functional group is selected from a group composed of carboxyl, carbonyl, quinine, ether, alkyl, nitrile, hydroxyl, lactone, amine, quaternary amine, and combinations thereof.;COPYRIGHT KIPO 2010