RU2018140553A - MATERIAL FOR CONTROL OF AUTHENTICITY OF THE MEDIA - Google Patents

Claims (27)

1. Material for checking the authenticity of an information carrier, comprising: insoluble particles, including at least one inorganic compound, and having at least one pre-known physical property suitable for authentication, intended to be included in the material said carrier and / or paint layer for applying onto said carrier, characterized in that it further comprises at least one agent preventing the rejection of the above mentioned parts in the manufacture of paper and / or applying a paint layer having a higher adhesive ability and / or oil absorption than the aforementioned particles, said agent is adsorbed on said particles, and the mass ratio of said agent and particles is from 1: 1 to 1: 10. 2. The material according to p. 1, characterized in that in it the aforementioned agent has an oil absorption of more than 20 g / 100 g, which ensures the retention of the aforementioned particles by the paint layer while the aforementioned mass ratio is 1: 1 to 1: 5. 3. The material according to p. 1, characterized in that in it the aforementioned agent has a higher adhesive ability than the aforementioned particles, ensuring their retention in the pulp during the production of paper on a paper machine. 4. Material according to any one of paragraphs. 1-3, characterized in that the aforementioned inorganic compound is selected from the group consisting of oxide, carbonate, sulfide, nitrate, alkali metal and alkaline earth metal chloride, and the aforementioned agent contains a chemical compound selected from the group consisting of sulfides, sulfate, oxysulfide, phosphate, oxychloride, aluminate, fluoride of elements of the II, III and IV groups of the periodic system of chemical elements. 5. The material according to any one of paragraphs. 1-3, characterized in that it contains the above properties, selected from the group including goniochromatic property, the ability to absorb infrared radiation, and / or magneto-softness, and / or hardness. 6. The material according to any one of paragraphs. 1-3, characterized in that in it the aforementioned inorganic compound is characterized by luminescence of a predetermined spectral composition in the spectral range of 700-3000 nm under the influence of exciting radiation lying in the spectral range of 300-2000 nm and having a chemical composition corresponding to the following empirical formula:

or the following empirical formula:

Where: Me ^III - an element of group III of the Periodic system, selected from Er, Yb, Tm, Nd, Ho, Eu, Pr, Tb and Dy; Ln is an element selected from B, Al, Sc, Ga, Y, La, Gd and Lu; 0.1≤X≤0.9. 7. Material according to any one of paragraphs. 1-3, characterized in that in it the aforementioned inorganic compound is characterized by luminescence of a given spectral composition in the spectral range of 700-3000 nm under the influence of exciting radiation lying in the spectral range of 700-1600 nm, and additionally has the property of changing the luminescence intensity without changing its spectral composition when exposed to stimulating radiation lying in the spectral range of 200-700 nm, and having a chemical composition corresponding to the following empirical formula:

Where: Me ^II - an element of group II of the Periodic system, selected from Mg, Ca, Zn and Sr; Me ^III - an element of group III of the Periodic system, selected from Er, Yb, Tm, Nd, Ho, Eu, Pr, Tb and Dy; Me ^IV - an element of group VI of the Periodic system, selected from Ti, Si, Zr, Ge; Ln is an element selected from B, Al, Sc, Ga, Y, La, Gd and Lu; 0.1≤X≤0.9; 0.01 Y Y 0 0.2. 8. The material according to any one of paragraphs. 1-3, characterized in that in it the aforementioned inorganic compound is a luminescent inorganic compound containing rare earth ions, characterized by anti-Stokes luminescence of green or red, or orange, or blue, or white color glow under the influence of infrared radiation in the wavelength range 800 -1100 nm. 9. Material according to any one of paragraphs. 1-8, characterized in that in it the particle size of the aforementioned first and second components is from 0.1 to 50 microns. 10. The material according to any one of paragraphs. 1-9, characterized in that it is introduced into the base and / or deposited on one of the surfaces of the information carrier. 11. The material according to p. 9, characterized in that it is colorless and indistinguishable on the surface and / or as part of a storage medium when observed under daylight. 12. A storage medium characterized in that it contains material according to any one of paragraphs. 1-11 and is made in the form of a banknote, excise stamp, postage stamp, passport, travel document, driver’s license, identity card, security, plastic card, label, payment document.