| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a water-based, double-color developing ink composition which is capable of forming an outline having a strong pearly gloss, even if using a dyestuff of deep color in order to form the outline of a handwriting to deep color, a pearl pigment for forming the center line being not influenced badly by the dyestuff, or rather having a good color development, and simultaneously which is capable of forming the outline distinguishable clearly from such center line. <P>SOLUTION: The water-based, double-color developing ink composition contains (a) a pearl pigment having a development color differenceΔE<SP>*</SP>between on a white background and on a black background of 30-80 and having an L<SP>*</SP>on a white background of 80 or more, (b) water, (c) at least one kind of a water-soluble organic solvent selected from a branched hydrophobic group-containing alcohols, -glycols and -glycol ethers, and (d) a water-soluble dyestuff. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
