| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a nonaqueous ink that can contaminate rapidly and exactly such a true ticket, even a bundled true ticket, as a bank note, marketable securities, a postage stamp, a revenue stamp, a passenger ticket, a winning voucher with a prize money etc., deprived by an unlawful means such as robbery, theft, etc., by leaving on a true ticket an evident proof for a long period of time and indicating that the ticket is the one deprived by an unlawful means by various sensors, visually or mechanically using an automatic money exchanger, a vending machine, an automatic checking and collecting machine, an automatic number reader etc. <P>SOLUTION: The nonaqueous ink for contaminating true ticket comprises a near infrared ray-absorbing agent, a fat and oil, a drier, a petroleum oil and a nonaqueous liquid medium, is colored by a dye or a pigment and has viscosity of 1-100 CPS (25°C). <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
