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GRANULAR MATERIAL EMITTING FLUORESCENCE, PAPER FOR PREVENTING COUNTERFEIT USING THE SAME AND PRINTED PAPER PREVENTING COUNTERFEIT
GRANULAR MATERIAL EMITTING FLUORESCENCE, PAPER FOR PREVENTING COUNTERFEIT USING THE SAME AND PRINTED PAPER PREVENTING COUNTERFEIT
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机译:颗粒状材料发出的荧光粉,使用相同和经过印刷的纸品防伪品防止伪造的纸
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摘要
PROBLEM TO BE SOLVED: To obtain a granular material having high coloring intensity by irradiation with ultraviolet rays, excellent light resistance, a high yield of a fluorescent agent in producing a granular substance emitting fluorescence, not eliminating the fluorescent agent in producing paper, producible by a small apparatus even in a small lot, having a high yield in papermaking and making fluorescence, a paper for preventing counterfeit using the granular material and a printed paper for preventing counterfeit using the paper. ;SOLUTION: A water-insoluble pigment emitting fluorescence by irradiation with ultraviolet rays and having 0.1-100 μm average particle diameter is stuck to the surface of particles developing autohesion by physical or chemical action by an impact method in a high-speed air flow to give a granular material emitting fluorescence. The granular material is added to paper to give a paper for preventing counterfeit. The paper for preventing counterfeit is printed in a fixed way to give a printed paper for preventing counterfeit.;COPYRIGHT: (C)1999,JPO
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