| 摘要 |
FIELD: information technology. ^ SUBSTANCE: protective substance contains at least one luminophor in form of particles and nanoparticles which at least partially cover the surface of the luminophor particles in form of a shell, and through the interaction of properties of which with the luminescent properties of the luminophor, properties of the protective substance are determined. The nanoparticles are bound with the surface of the luminophor by adhesion forces. The claim also describes a method of obtaining said protective substance, a method of protecting a protective element or a valuable document from forgery using such a protective substance, as well as authentic protective elements and valuable documents based on said protective substance. ^ EFFECT: providing a combination of different protective substances which form a system which cannot be split into components for increasing reading accuracy. ^ 45 cl |
