FIELD: printing industry.
SUBSTANCE: element of protection comprises the first layer, which includes cholesteric liquid crystal material available at least on some sections. The second layer contains liquid crystal material, which is available at least on some sections, besides the second layer produces phase-shifting layer. Besides element of protection contains an additional layer equipped with machine-readable criterion, at the same time specified additional layer is available at least on some sections and is coated at least at some sections with the first and second layers containing liquid crystal material.
EFFECT: high extent of protection against precious objects counterfeit.
45 cl, 35 dwg
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