| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide fluorescent light emitting ink which can be used in signets or stamp pads, is hardly distinguishable from common ink under visible light, is satisfactory in ink stability, luminous intensity of a printed matter, and light fastness, and can give a printed matter which can be detected by a simple method such as irradiation with black light. <P>SOLUTION: The pigment composition comprises a compound (A) represented by formula (Y) and a coloring pigment (B). In formula (Y), R1 and R4 are each independently a hydrogen atom or a halogen atom; R2 is a substituent; R3 is a hydrogen atom, an alkyloxy group, a cycloalkyloxy group, an aralkyloxy group, or an aryloxy group; and R5 and R6 are each independently a hydrogen atom, a halogen atom, or a methyl group, provided that R2 and R3 can not be hydrogen atoms simultaneously. <P>COPYRIGHT: (C)2004,JPO</p> |
