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Anti-counterfeiting and anti-counterfeiting print ink
Anti-counterfeiting and anti-counterfeiting print ink
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机译:防伪和防伪印刷油墨
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摘要
PPROBLEM TO BE SOLVED: To provide forgery preventing ink capable of easily discriminating a forged matter formed by using a copier having high resolving power. PSOLUTION: The forgery preventing ink which is prepared by mixing a pearl pigment and a fluorescent pigment is used to easily discriminate copied matter by utilizing a property having brightness peculiar to the pearl pigment and becoming different in hue by a looking angle and a property emitting a sharp hue peculiar to the fluorescent pigment. Further, the reproduction of colors by color copier is difficult and forged printed matter using a fluorescent pen also becomes difficult and the visual discrimination of copied matter becomes easy. PCOPYRIGHT: (C)2004,JPO
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