FIELD: protection of documents and bank notes against a fake. SUBSTANCE: invention presents the material intended for protection of a paper against a fake at manufacturing, for example, documents and bank notes. The fibrous material protecting against a fake contains cotton fibers both colored and uncolored, profiled synthesized fibers at the given their ratio. At that the factor of branching of the profile of the cotton fibers cross-section is equal to 3.54-4.32, and that of the synthesized fibers - to 6.2-11.5. EFFECT: increased strength of the protective fibers retention in the mass of a bank note, their non- aggregation in it with keeping simultaneous protection. 6 dwg, 3 ex
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Authors
Dates
2003-11-27—Published
2002-08-22—Filed