Patent ID: 6281917
Filing Date: 2001-08-28
Classification: B41J

Abstract:
A process for the formation of an image by using a liquid composition and a colored ink in combination to form a colored image on a recording medium, comprising the step of using at least a magenta ink as the colored ink, wherein said magenta ink provides an image of magenta color, which satisfies all color senses represented by the equations:(a.sub.1 +L *).sup.2 +L +(b.sub.1 +L *).sup.2 +L .gtoreq.(a.sub.0 +L *).sup.2 +L +(b.sub.0 +L *).sup.2 +L (I),40.ltoreq.L.sub.1 *.ltoreq.80 (II),50.ltoreq.a.sub.1 *.ltoreq.70 (III), and-30.ltoreq.b.sub.1 *.ltoreq.5 (IV),where in the formulae (I), (II), (III) and (IV), L.sub.1 *, a.sub.1 *, b.sub.1 *, a.sub.0 * and b.sub.0 * each represent a colorimetric value which is defined in the CIE 1976 (L*a*b*) color space; a.sub.1 * and b.sub.1 * each represent a colorimetric value of the image, which is obtained by using a liquid composition and a colored ink on a test paper having a whiteness of from 78 to 84, in accordance with JIS P 8123, measured by a Hunter Whitenessmeter, and a chromaticity of 86.ltoreq.L*.ltoreq.93, 3.ltoreq.a*.ltoreq.10 and -6.ltoreq.b*.ltoreq.1, said chromaticity being defined in the CIE 1976 (L*a*b*) color space; and a.sub.0 * and b.sub.0 * each represent a colorimetric value of the image, which is obtained by using only a colored ink on said test paper;wherein said magenta ink comprises a water-soluble dye represented by one of the following formulae: ##STR8## ##STR9## ##STR10## ##STR11## ##STR12##