INK, INK-JET RECORDING PROCESS MAKING USE OF THE INK, INK-JET DEVICE, INK-JET RECORDING APPARATUS, AND INK CARTRIDGE

摘要

An ink comprising a composition containing a pigment, a water-soluble resin and a liquid medium, wherein the pigment and the water-soluble resin are contained in said composition in a proportion of the weight Wr of the latter to the weight Wp of the former, Wr/Wp, that satisfies the expression (I) $wherein\; DAR\; denotes\; a\; value\; represented\; by\; the\; expression\; (II)$ \mathop{\mathrm{image}}$$