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1. (WO2018088935) COIN-TYPE ARTICLE

Pub. No.:    WO/2018/088935    International Application No.:    PCT/RU2017/000783
Publication Date: Fri May 18 01:59:59 CEST 2018 International Filing Date: Fri Oct 27 01:59:59 CEST 2017
IPC: A44C 21/00
G07D 5/00
B44B 5/00
Inventors: PROKOFIEV, Igor Germanovich
ПРОКОФЬЕВ, Игорь Германович
KOROLEV, Dmitry Alexandrovich
КОРОЛЕВ, Дмитрий Александрович
EVSTRATOV, Sergey Alexandrovich
ЕВСТРАТОВ, Сергей Александрович
GROMOV, Dmitry Evgenievich
ГРОМОВ, Дмитрий Евгеньевич
TINGAEVA, Yuliya Valerievna
ТИНЬГАЕВА, Юлия Валерьевна
The invention relates to the production of coins, medals, commemorative tokens and similar products, which are protected against counterfeit. Proposed is a coin-type article with a polished and/or relief surface having sections onto which a micro-relief is applied. Said micro-relief takes the form of an ordered set of projections and recesses with a size of 0.5-5.0 μm, which constitutes an integral part of the decorative design of the article exterior. When said article is exposed to a beam of a full spectrum halogen lamp at an angle of 45 degrees to the surface of the coin-type article, the intensity of a beam reflected specularly from a surface section comprising an applied micro-relief is at least 48% lower than the intensity of a beam reflected specularly from a section of the article surface which does not comprise a micro-relief. The technical result of the invention is to produce articles which comprise a security feature with a higher degree of protection as a result of the reliability of detection thereof and the presence of such a security feature incorporated into the decorative design of the article exterior.