PROTECTIVE ELEMENT, IN PARTICULAR FOR CURRENCY UNITS, PASS CARDS AND SIMILAR THINGS, HAVING SIGNS OF PROTECTION AGAINST FORGERY Russian patent published in 2013 - IPC B42D15/00 G06K19/12 G07D7/04 

Abstract RU 2472628 C2

FIELD: printing.

SUBSTANCE: protective element, in particular for currency units, pass cards, and similar things, comprising: a first substrate that is at least partially opaque when viewed in transmitted light. The magnetic fields located on the said substrate, and the magnetic fields comprise at least two types of magnetic fields which have different values of coercivity, and which magnetic remanence is the same or different. And the said different values of coercivity are adapted to create at least three different codes. The said three codes are defined by all available magnetic fields, magnetic fields with the high value of coercivity and magnetic fields with low value of coercivity, respectively, and the said magnetic field are separated from each other by areas in which there is no magnetic material. At that, at least some of these magnetic fields with low and high coercivity value are placed so as to be superimposed on the said first substrate.

EFFECT: protective element has a high level of protection against forgery.

23 cl, 10 dwg

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RU 2 472 628 C2

Authors

Ladzerini Mauritsio

Dates

2013-01-20Published

2008-01-25Filed