An aqueous ink to be used in an ink jet recording method that an ink is ejected from a recording head by the action of thermal energy, wherein the ink contains a pigment, a polymer and a water-soluble organic solvent, the hydrophilicity δm of the pigment falls within a range of from 21.5 or more to...http://www.google.es/patents/US20070191508?utm_source=gb-gplus-sharePatente US20070191508 - AQUEOUS INK, INK-JET RECORDING METHOD, INK CARTRIDGE, RECORDING UNIT AND INK JET RECORDING APPARATUS
AQUEOUS INK, INK-JET RECORDING METHOD, INK CARTRIDGE, RECORDING UNIT AND INK ...
Número de solicitud: 11/674,357 Número de publicación: US 2007/0191508 A1 Fecha de presentación: 13 Feb 2007 Patente emitida: US7705071 ( Fecha de emisión 27 Abr 2010)