NON-AQUEOUS INK FOR STAINING GENUINE BILL

摘要

PROBLEM TO BE SOLVED: To provide an ink that can stain genuine bills, lotteries, valuable paper and the like in the form of bundles or wads stored in a storing vessel, when they are robbed or stolen via illegal processes by immediately staining the bills or the like with this ink at the edge faces of the wads, then rapidly allowing the ink to penetrate into the inside of the pads so that the explicit evidence that the bills or like have been stained by this ink may be remained visually or mechanically, for example, in the money changer, thus the robbed bills, lotteries or valuable documents are made unusable. SOLUTION: The objective non-aqueous ink for staining genuine bill or the like comprises magnetic particles with the average particle size of 5-25 nm, a vegetable oil and a non-aqueous liquid medium.