| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a scratch discoloration perfume ink having a printing suitability to be used for a printed matter with the printed portion easily discolored by a scratch with a coin or a nail tip for emitting an aroma, and to provide a scratch discoloration aroma printed matter using the ink. <P>SOLUTION: The scratch discoloration perfume ink contains a dye precursor, an electron receiving color developing agent, a coloring agent and a varnish. The color difference (ΔE<SP>*</SP>ab) of the JIS-Z8730 of the color developed part before and after friction at the time of scratching with a nail a color developed article with an ink application amount of 0.4 cm<SP>3</SP>/m<SP>2</SP>on form paper is 4.0 or more. The total mass of the dye precursor, the electron receiving color developing agent, and a perfume encapsulating capsule is 30 mass% or less with respect to the whole ink. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
