Patent ID: 8240834
Filing Date: 2012-08-14
Classification: C09D

Abstract:
1. An ink for ink-jet recording comprising a coloring agent, wherein the coloring agent contains a pigment, the ink further contains a marker, the marker has a detector absorption peak for detecting the marker at a wavelength that is different from a wavelength of the maximum absorption peak of the coloring agent, and the coloring agent and the marker are contained in the ink in amounts that satisfy the following conditions (I) to (III): (I) about 1.2≦A (II) color difference (ΔE)≦about 3; and (III) about 1≦A where A A ΔE={(L* L* L* a* a* b* b* the control ink is an ink having the same composition as a composition of the ink except that water is used instead of the marker.