Patent ID: 8110257
Filing Date: 2012-02-07
Classification: B41J,B41M,C09D,Y10T

Abstract:
1. An ink-jet recording method, comprising: recording onto a recording medium a black image of composite black using a combination of a black ink and color inks, wherein the black ink comprises water, a water-soluble organic solvent, a surfactant, and a carbon black whose volume average particle diameter is 40 nm to 100 nm, and the color inks comprise a cyan ink containing a cyan pigment, a magenta ink containing a magenta pigment, and a yellow ink containing a yellow pigment, wherein a mass ratio (A/B) of a solid content A in the black ink to a water-soluble organic solvent content B in the black ink is in the range of 1/8 to 1/15, and wherein the recording medium comprises a support, and a coating layer applied onto at least one surface of the support, the amount of purified water transferred to the recording medium at a contact period of 100 ms measured by a dynamic scanning absorptometer at a temperature of 23° C. and a relative humidity of 50% is 2 ml/m