RU2720464C1 - Method of marking anti-counterfeit object, method of identifying marking and marking identification device - Google Patents

Abstract

FIELD: physics.SUBSTANCE: on the information carrier surface there is applied a dispersion containing Stokes and/or anti-Stokes luminophors in an optically transparent binder. Luminophors have virtually identical luminescence spectrum and kinetics of luminescence ignition/attenuation in wavelength range (300–3000) nm and virtually identical excitation spectrum in wavelength range (700–3000) nm, wherein at least one luminophor has the property of optical quenching under the effect of stimulating radiation in wavelength range (300–700) nm. Dispersion can be applied by tampon or polygraphic method. Observation is carried out using a device comprising lens 13, a camera with an IR sensor for fixing the distribution of luminescent particles on the surface of the information carrier in wavelength range (700–3000 nm), source 8 of exciting radiation in spectral range (700–3000) nm, stimulating emission source 15 in wavelength range (300–700) nm, set of light filters 7, 10 and 14, power supply unit 16 and image processing unit 12. First, the device is placed on the data medium by orienting input window 5 accordingly. Unit 12 includes excitation radiation source 8 which passes through filter 7 and enters information carrier. Specified initial distribution of luminescent particles on the surface of the information carrier is recorded in the image processing unit 12. Without excitation radiation, the information carrier is exposed to stimulating radiation, including source 15 and reducing luminescence intensity of only one of the luminophores. This second distribution of luminescent particles is also recorded, and/or the result of comparison is added to the database, and / or the obtained distribution is compared to the distribution stored in the database. If the measured values coincide with the reference data, the result is reflected on display unit 17.EFFECT: invention can be used for protection of information carriers against forgery and identification of their authenticity.12 cl, 5 dwg, 3 ex

Description

The invention relates to the field of protection of material objects, including storage media, from falsification, and the subsequent identification of their authenticity by creating hidden markings that solve the problem of reliable determination of the authenticity of an object, protecting the object from partial falsification due to the impossibility of making unauthorized changes, making hidden information code, etc.

One of the most important tasks of protecting material information carriers from forgery, and the subsequent identification of their authenticity, is the creation of special markings that solve the problems of reliable instrumental determination of the authenticity of the medium, applying a hidden information code, as well as their protection against partial forgery, which consists in the impossibility of making unauthorized changes, other.

The developed technical solution is intended for marking information carriers such as banknotes, valuable documents and art objects, and involves the application of hidden marking on an object with its subsequent instrument identification. In accordance with this technical solution, the marking contains as its main components a combination of (at least two) multi-activator luminescent compounds based on rare-earth metal ions (REM) with specified spectral-kinetic properties and optical quenching parameters.

The peculiarity of the solution is the marking on a given area of the object’s surface, with the formation of a chaotic unique distribution of luminescent particles of at least two types in the observation plane, followed by reading this distribution and fixing it in the database, and / or comparing the resulting image with the image stored in the database data. Thus, the indicated marking is unique for each material object protected from falsification. Moreover, the main difference between the proposed invention and other solutions is the use of at least two luminescent substances in the marking composition, preferably not differing in spectral and kinetic properties, but having different optical quenching.

An embodiment of the present invention may include a solution in which the spatial regions of the random distribution of the luminescent particles of both luminescent substances within the common spatial region of the marking are specified and form symbols, geometric shapes, patterns or a bar code.

Composition for secure marking, in addition to the discoverability and complexity of reproduction (or imitation), must meet specific requirements, including safety in relation to the marked object, the safety of the use of marking compounds for humans, a variety of distinctive features that allow you to create and distinguish the required number of unique compositions, high persistence of the applied marking in conditions of natural aging and the possibility of reliable instrument identification.

The method for identifying the indicated marking should include a device providing observation of the marking surface with the necessary increase, irradiation of the marking region with radiation with the required power density in the given spectral ranges for excitation and stimulation of luminescent radiation of individual particles, and fixing the spatial distribution of luminous particles before and after the application of stimulating radiation when applied excitation radiation.

Obviously, taking into account the above requirements, as well as additional restrictions, for the task of reliable hidden marking with subsequent instrument identification, luminescent substances, or a given set of such substances, specially synthesized to solve the problem, and not having widespread simulators ( there are functional analogues) in foreign or domestic industry.

One of the promising ways to solve this problem seems to be to use luminescent compounds with specified properties as part of the marking, since the glow effect of various substances under the influence of exciting radiation is conveniently used for non-destructive and / or non-contact authentication of protected objects. An important circumstance is the fact that the luminescence phenomenon has various manifestations - in particular, such as phosphorescence, electroluminescence, optical quenching, anti-Stokes, flash luminescence, and others, which can significantly expand the marking functionality.

The energy transfer between different REM ions in a multi-activator phosphor is quite complex and depends on its composition, structure and even technological features of obtaining a crystal, therefore these substances are especially attractive for creating luminescent markings with non-standard optical and physical properties. Moreover, even very insignificant differences in the ratio of rare-earth ions in the composition of the crystalline structure can lead to fundamental changes in the spectral composition, kinetics of acceleration / decay of the luminescence bands, and other parameters subject to instrumental identification. This, in turn, allows you to create a significant number of different markings that differ in instrument properties

The prior art group of patents known is WO 8103507 A1, WO 8103508 A1, WO 8103509 A1, WO 8103510 A1 and WO 8103511 A1 (GAO, 1981). This group of inventions proposes to use for determining the authenticity of protected products, such as banknotes, marking based on luminescent substances with rare-earth metals, which are mainly studied in the IR region of the optical spectrum, and when authenticity is checked, the measurement of excitation spectra, luminescence spectra, the ratio of the intensities of the spectral bands of luminescence, and kinetic parameters of luminescence bands.

Known patents are US 4387112 A, US 4047033 A, RU 2429272, RU 2401293, RU 2434926, RU 2516129, significantly expanding the range and spectral ranges of luminescent substances used to protect against falsification of valuable documents. The described solutions are based on the use of new types of luminescent inorganic compounds having either narrow-band luminescence, or anti-Stokes luminescence in the visible spectrum, or the property of reradiation in the near infrared spectrum, or phosphorescence, or a combination of all of the above.

A solution is known (RU, patent 2379195, publ. 20.01.2010) that discloses a solution to the problem of speedy control of banknote authenticity, and proposes to use in order to determine the authenticity of inorganic luminescent compounds with a given dependence of the ratios of intensities of the spectral bands of luminescence on the intensity of an exciting study.

A solution is known (RU, patent 2379192, publ. 10.01.2010), in which it is proposed to use a combination of inorganic luminescent substances with various properties, for example, photostimulated luminescence ("flash" phosphors) and phosphorescence, in combination with anti-Stokes phosphors, for protective marking.

A known solution (RU, patent 2614980, published March 31, 2017) based on the use of complex, combined effects on the studied luminescent material, which can significantly increase the selectivity of authenticity control, since it eliminates the vast majority of known prototypes and simulators that do not have the required response to complex effects . The invention describes a valuable document with a marking based on a luminescent inorganic compound having luminescence of a given spectral composition in the near infrared range of the spectrum, which, under the influence of stimulating radiation in the UV or visible spectral range, additionally has the property of changing the luminescence intensity without changing its spectral composition (optical quenching, or UV modulation of luminescence).

Variants of the technical implementation of such luminescent compounds based on combinations of various REM ions, as well as methods for their laboratory synthesis, are described in detail in the group of patents RU 2610592, RU 2610767, RU 2614687, RU 2614688, RU 2614690, RU 2614693, RU 2615695, RU. However, the solutions presented do not consider the possibility of forming and fixing in the plane of protective marking the double distribution of luminescent particles, some of which have optical quenching under the influence of stimulating radiation.

In terms of devices for reading and fixing luminescent images, a solution is known (RU, patent 2430414, publ. 09/27/2011), characterizing a scanner device for reading luminescent images. However, this solution also does not imply fixing the double distribution of luminescent particles in the marking plane, some of which have optical quenching under the influence of stimulating radiation.

Closest to the proposed solution is (RU patent 2615262, published 04.04.2017) a technical solution that characterizes the use of two luminescent homogeneous phases consisting of particle agglomerates as part of a valuable document. However, in the presented solution, luminescent substances possess obviously different luminescence spectra, and none of them has optical quenching.

The main disadvantage of the closest analogue is the relative technical simplicity of the applied luminescent compounds having analogues and known from the prior art, insufficiently high selectivity of control methods based on the measurement of known luminescence parameters - and, accordingly, having a significant drawback in the form of imitating substances existing in circulation. According to the totality of the noted objective shortcomings, at present, this solution cannot provide the required level of protection against counterfeiting, and does not fully solve the task.

The technical problem solved using the developed group of inventions consists in expanding the range of means of protecting material protection of material objects from counterfeiting, and the subsequent identification of their authenticity by creating hidden markings that solve the problem of reliable determination of the authenticity of an object.

The technical result achieved by the implementation of the developed group of the invention is to increase the degree of protection of material objects.

To achieve the indicated technical result, it is proposed to use a method for marking an object protected from falsification, characterized in that a composition is applied to the surface of the object, which is a dispersion of at least two luminescent substances in an optically transparent binder, both substances having almost the same Stokes and / or anti-Stokes luminescence and the kinetics of acceleration / decay of luminescence in the wavelength range (300-3000) nm, and almost the same excitation spectrum in the range at a wavelength of (700-3000) nm, while at least one luminescent substance has the property of optical quenching under the influence of stimulating radiation in the wavelength range (300-700) nm.

In some embodiments of the developed marking method, at least two substances with empirical formulas taken from the series can be used in the composition:

1 substance:

(Ln _1-XZ-2Y Me ₁ ^III _X Me ₂ ^III _Z Me ^II _Y Me ^IV _Y ) ₂ O ₂ S

(Ln _1-XZ-2Y Me ₁ ^III _X Me ₂ ^III _Z Me ^II _Y Me ^IV _Y ) ₂ BaF ₈

(Ln _1-XZ-2Y Me ₁ ^III _X Me ₂ ^III _Z Me ^II _Y Me ^IV _Y ) NaF ₄

(Ln _1-XZ-2Y Me ₁ ^III _X Me ₂ ^III _Z Me ^II _Y Me ^IV _Y ) F ₃

(Ln _1-XZ-2Y Me ₁ ^III _X Me ₂ ^III _Z Me ^II _Y Me ^IV _Y ) LiF ₄

2 substance:

(Ln _1-AB Me ₁ ^III _A Me ₂ ^III _B ) ₂ O ₂ S

(Ln _1-AB Me ₁ ^III _A Me ₂ ^III _B ) ₂ BaF ₈

(Ln _1-AB Me ₁ ^III _A Me ₂ ^III _B ) NaF ₄

(Ln _1-AB Me ₁ ^III _A Me ₂ ^III _B ) F ₃

(Ln _1-AB Me ₁ ^III _A Me ₂ ^III _B ) LiF ₄

Where:

Me ^II - element of group II of the Periodic system (Mg, Ca, Zn, Sr);

Me ₁ ^III and Me ₂ ^III - elements of group III of the Periodic system from a number of lanthanides (Ce, Er, Yb, Tm, Nd, Ho, Eu, Pr, Tb, Dy, Sm);

Me ^IV - elements of groups IV and V of the Periodic system (Ti, Si, Zr, Hf, Ge, V, Nb, Ta);

Ln is an element from the series Sc, Y, La, Gd, Lu;

X> 0;

Y> 0;

0 <Z <0.2;

A> 0;

0 <B <0.2.

The composition is applied to the object by the printing method of printing, preferably by the method of inkjet printing, as well as by pad printing. This does not exclude other options for applying the composition, including preliminary application to the adhesive substrate, followed by application of the substrate to the object.

In the proposed composition, preferably used particles of luminescent substances, the sizes of which are in the range from 0.1 to 100 microns.

It is preferable to use a marking method in which particles of the luminescent substances included in the composition are randomly distributed on the surface of the object to obtain a unique pattern for each protected object. Although there is a possible implementation of the method in which particles of luminescent substances on the surface of the object are distributed to form a latent image in the form of geometric figures, figures, text, symbols, code, identification information.

When implementing the method, it is possible to use as part of any additional security feature, including luminescent.

Preferably, but not necessarily, the composition is indistinguishable on the surface of the object.

To achieve the specified technical result, it is also proposed to use the developed method for identifying the above composition. When implementing this method, the composition is observed on the surface of the object under the influence of exciting radiation in a given range of the spectrum, the predetermined initial distribution of luminescent particles is fixed on the surface of the object, then, without removing the exciting radiation, the composition on the surface of the object is exposed to stimulating radiation in the wavelength range (300 -700) nm, record the decrease in intensity only at a part of the luminous points, fix the second distribution and / or enter the result of the comparison into the database, and / or avnivayut distribution obtained with a given distribution, are stored in the database.

Also, to achieve the specified technical result, it is proposed to use the developed identification device of the above composition. The device contains a lens, a camera with a sensor for fixing the distribution of luminescent particles of the composition on the surface of the object in the wavelength range (700-3000 nm), sources of exciting radiation in the spectrum range (700-3000) nm, sources of stimulating radiation in the wavelength range (300- 700) nm, a set of filters, a power supply and a device (block) for processing the received image. The developed device in some embodiments may include a lens, a camera with a visible range sensor for recording the distribution of luminescent particles on the surface of an object in the wavelength range of 400-700 nm, sources of exciting radiation in the spectrum range 700-3000 nm, sources of stimulating radiation in the wavelength range 300-400 nm and image processing unit.

To solve this problem, it is proposed to use a combination of conventional and modulated luminescent compounds (that is, with optical quenching under the influence of UV or visible radiation) emitting in the visible or near infrared region of the spectrum. In the absence of stimulating radiation, these luminescent compounds should have almost identical spectral-kinetic parameters of luminescence.

Thus, to solve the problem of marking objects, it is proposed to use a composition containing a combination of at least two luminescent materials, and they should have different parameters of optical quenching of luminescence and almost identical spectral-kinetic parameters of luminescence upon excitation in a given spectral range.

The proposed technical solutions based on new luminescent compounds with optical quenching, including a method for identifying the spatial distribution of luminescent particles of the composition, optimally solve the problem, providing the required level of protection against falsification, reliability of control, as well as protection against decryption and reproduction of the substances used.

To implement the developed identification method, as mentioned earlier, a device was developed that contains an input window, a hood, combined with the optical part of the device, an excitation radiation source filter, an excitation radiation source with a wavelength of 940 nm, a field diaphragm, a visible filter with a passband (400-660) nm, a visible-range sensor based on a silicon SSE (CCD) matrix with an array of 1000 × 1000 pixels, an image processing unit made on a microprocessor device, an object in, filter the stimulating radiation source, the source of stimulating radiation having a wavelength of 390 nm, a power unit.

The developed technical solution is illustrated by graphic material, where in FIG. 1 shows marking in the form of a composition deposited on an object (passport), in FIG. 2 shows a distribution of particles of a luminescent substance of the first kind when exposed to stimulating radiation in an object in the wavelength range (300-400) nm, FIG. 3 shows an identity card on which a colorless composition is applied by inkjet printing; FIG. 4 shows an image in the form of a symbol formed when the object is stimulated by radiation in the wavelength range (300-400) nm, when the particles of the first luminescent substance lose their luminosity, FIG. 5 shows the design of the device, with the following notation: object 1, composition 2, initial distribution of 3 particles of luminescent substance on object 1, intensity 4 of the luminescence of the first luminescent substance after exposure to stimulating radiation, object plane (entrance window) 5, hood 6, light filter 7 a source of exciting radiation, a semiconductor source 8 of exciting radiation with a wavelength of 940 nm, a field diaphragm 9, a light filter 10 of a visible range sensor with a passband (400-660) nm, a sensor visible range 11 based on a silicon CCD (CCD) matrix with an array of 1000 × 1000 pixels, an image processing unit 12 made on a microprocessor device, a lens 13, a filter 14 of a stimulating radiation source, a semiconductor source of stimulating radiation 15 with a wavelength of 390 nm, a power supply 16 , display unit 17.

The device operates as follows.

The device is installed on a controlled object, orienting the input window 5 to the area of location on the object of the composition.

To exclude the presence of extraneous light composition in the measurement domain of the luminescent parameters, a hood 6 is used, which also functions as the housing of the optical part of the device.

Then, the image processing unit 12 provides a control signal and includes a source of exciting radiation with a wavelength of 940 nm 8.

Excitation radiation with a wavelength of 940 nm, passing the light filter of the source of exciting radiation 7 falls into the subject plane, where the marking composition is located on the object. Under the influence of exciting radiation, the particles of both luminescent compounds that make up the markings luminesce in the spectral range (500-660) nm, forming a distribution of luminous particles in the subject plane. This initial distribution of luminous particles through the lens 13 is focused in the plane of the field diaphragm 9, where the visible filter 10 and the visible spectrum sensor 11 are located.

The image of the initial distribution from the sensor enters the processing unit of the received image, where it is captured and mathematically processed.

Then, the processing device for the received image provides a control signal and turns on a stimulating radiation source with a wavelength of 390 nm 15.

Excitation radiation with a wavelength of 390 nm, passing through the light filter of the source of exciting radiation 14 also falls into the subject plane, where the marking is located. Under the influence of stimulating radiation, the particles of the first luminescent compound reduce the luminescence intensity in the spectral range (500-660) nm, changing the distribution of luminous particles in the subject plane. This distribution of luminous particles, according to the scheme described above, is projected onto the sensor of the visible range, and enters the image processing device ..

By mathematical processing of the initial and final distribution, the device for processing the obtained image determines the degree of proximity of the initial and final distribution of particles on the analyzed object with respect to its image stored in the database.

Then, the device for processing the obtained image turns off the source of stimulating radiation, and after a specified period of time, the initial distribution of luminescent particles in the subject plane is restored. The fact of restoration of the luminescence of luminescent particles of the marking composition is also recorded by the device for processing the received image ..

When the measured values coincide with the reference data stored in the database, the image processing device generates a corresponding signal to the display unit 17 informing about the control result.

The presented invention is illustrated by examples.

Example 1

The object in the form of a passport (Fig. 1, item 1) is a pad printing method that has a hidden marking 2 with an area of 1 cm ² for instrumental identification of authenticity, which is a composition of 80% binder based on drying oil and 20% of luminescent components, consisting of a proportion of 50 % × 50% of two substances with the following chemical formulas:

1 substance:

(Y _{0, 79} Er _0.1 Yb _0.01 Ti _0.05 Ca _{0.05) 2} O ₂ S

2 substance:

(Y ₀ , ₈₉ Yb _0.1 Er _0.01 ) ₂ O ₂ S

Both luminescent substances have almost identical spectral-kinetic parameters of anti-Stokes green luminescence in the wavelength range (500-660) nm under the influence of exciting radiation in the wavelength range (940-980) nm.

The appearance of the object under the influence of exciting radiation is shown in FIG. 1. An initial distribution of 3 particles of both luminescent substances is shown in FIG. 1.

In this case, the particle sizes of both luminescent substances in D₉₀ lie in the range (1-5) microns.

When the object is stimulated by radiation in the wavelength range (300-400) nm, the particles of the first substance lose the luminosity 4, and the distribution takes the form shown in FIG. 2.

After removing the stimulating radiation, the particles of the first substance restore their luminous intensity, and the object again takes on the form shown in FIG. 1.

Example 2

On the object in the form of an identity card (Fig. 3, item 1), a colorless marking 2 with an area of 6 cm ^{2 is} applied by inkjet printing for instrumental identification of authenticity, which is a composition of 79% of a binder based on alcohol varnish containing an additional security feature in the form of 1% particles of a red phosphor glow under the influence of UV radiation, as well as 20% of luminescent components, consisting in a proportion of 70% × 30% of two luminescent substances with the following chemical formulas:

1 substance:

(La _0.79 Tm _0.1 Ho _0.01 Ti _0.05 Ca _0.05 ) NaF ₄

2 substance:

(La _0.89 Tm _0.1 Ho _0.01 ) NaF ₄

Both luminescent substances possess anti-Stokes luminescence of bluish-green color almost identical in spectral-kinetic parameters in the wavelength range (450-550) nm under the influence of exciting IR radiation in the wavelength range (800-880) nm.

The appearance of the object and the initial particle distribution of both luminescent substances under the influence of exciting IR radiation are shown in FIG. 3.

The particle sizes of both luminescent substances according to D ₉₀ lie in the range (5-15) microns.

When the object is stimulated by radiation in the wavelength range (300-400) nm, the particles of the first luminescent substance lose their luminous intensity, and the distribution takes the form shown in FIG. 4, forming a symbol image.

After removing the stimulating radiation, the particles of the first luminescent substance restore their luminous intensity, the image in the form of a symbol disappears, and the object again takes on the form shown in FIG. 3.

Example 3

A method for identifying the marking described in Example 1 of the present invention, implemented using a device whose functional diagram is shown in FIG. 5.

The device operates as follows.

The device is installed on a controlled object, orienting the input window 5 to the area of the marking composition.

To exclude the presence of extraneous light in the marking region, a hood 6 is used, which also functions as the body of the optical part of the device.

Then, the image processing unit 12 supplies a control signal and turns on a source of exciting radiation with a wavelength of 940 nm (pos. 8).

Excitation radiation with a wavelength of 940 nm, passing through the light filter of the source of exciting radiation 7 falls into the subject plane, where the object with the applied composition is located. Under the influence of exciting radiation, the particles of both luminescent compounds that make up the markings luminesce in the spectral range (500-660) nm, forming a distribution of luminous particles in the subject plane. This initial distribution of luminous particles using the lens 13 is focused in the plane of the field diaphragm 9, where the visible filter 10 and the visible spectrum sensor 11 are located.

The image of the initial distribution from the sensor is transmitted to the device for processing the received image, where it is captured and mathematically processed.

Then, the device for processing the obtained image provides a control signal and turns on a stimulating radiation source with a wavelength of 390 nm (pos. 15).

The exciting radiation with a wavelength of 390 nm, passing through the filter of the source of exciting radiation 14 also falls into the subject plane, where the object with the applied composition is located. Under the influence of stimulating radiation, the particles of the first luminescent compound reduce the luminescence intensity in the spectral range (500-660) nm, changing the distribution of luminous particles in the subject plane. This distribution of luminous particles, according to the scheme described above, is projected onto the sensor of the visible range, and is fixed in the processing device for the received image ..

By mathematical processing of the initial and final distribution, the device for processing the obtained image determines the degree of proximity of the initial and final distribution of particles of the analyzed object with respect to the image stored in the database.

Then, the device for processing the obtained image turns off the source of stimulating radiation, and after a specified period of time, the initial distribution of luminescent particles in the subject plane is restored. The fact of restoration of the luminescence of the luminescent marking particles is also recorded by the device for processing the received image ..

If the measured values coincide with the reference data stored in the database, the device for processing the obtained image generates a corresponding signal to the display unit 17, informing about the control result.

Claims (34)

1. A method of marking an object to be protected from counterfeiting, characterized in that a composition is applied to the surface of the object, which is a dispersion of at least two luminescent substances in an optically transparent binder, both substances having practically the same spectrum of Stokes and / or anti-Stokes luminescence and kinetics of ignition / luminescence attenuation in the wavelength range (300-3000) nm and an almost identical excitation spectrum in the wavelength range (700-3000) nm, with at least one luminescent substance possesses the property of optical quenching under the influence of stimulating radiation in the wavelength range (300-700) nm. 2. The labeling method according to claim 1, characterized in that at least two luminescent substances with empirical formulas taken from the series are used in the composition: 1 substance: (Ln _1-XZ-2Y Me ₁ ^III _X Me ₂ ^III _Z Me ^II _Y Me ^IV _Y ) ₂ O ₂ S (Ln _1-XZ-2Y Me ₁ ^III _X Me ₂ ^III _Z Me ^II _Y Me ^IV _Y ) ₂ BaF ₈ (Ln _1-XZ-2Y Me ₁ ^III _X Me ₂ ^III _Z Me ^II _Y Me ^IV _Y ) NaF ₄ (Ln _1-XZ-2Y Me ₁ ^III _X Me ₂ ^III _Z Me ^II _Y Me ^IV _Y ) F ₃ (Ln _1-XZ-2Y Me ₁ ^III _X Me ₂ ^III _Z Me ^II _Y Me ^IV _Y ) LiF ₄ 2 substance: (Ln _1-AB Me ₁ ^III _A Me ₂ ^III _B ) ₂ O ₂ S (Ln _1-AB Me ₁ ^III _A Me ₂ ^III _B ) ₂ BaF ₈ (Ln _1-AB Me ₁ ^III _A Me ₂ ^III _B ) NaF ₄ (Ln _1-AB Me ₁ ^III _A Me ₂ ^III _B ) F ₃ (Ln _1-AB Me ₁ ^III _A Me ₂ ^III _B ) LiF ₄ Where: Me ^II - an element of group II of the Periodic system (Mg, Ca, Zn, Sr); Me ₁ ^III and Me ₂ ^III - elements of group III of the Periodic system from a number of lanthanides (Ce, Er, Yb, Tm, Nd, Ho, Eu, Pr, Tb, Dy, Sm); Me ^IV - elements of groups IV and V of the Periodic system (Ti, Si, Zr, Hf, Ge, V, Nb, Ta); Ln is an element from the series Sc, Y, La, Gd, Lu; X> 0; Y> 0; 0 <Z <0.2; A> 0; 0 <B <0.2. 3. The marking method according to claim 1, characterized in that the composition is applied by the printing method of printing, preferably by the method of inkjet printing. 4. The marking method according to p. 1, characterized in that the composition is applied by tampon method. 5. The marking method according to claim 1, characterized in that the particles of the luminescent substances included in the composition have sizes in the range from 0.1 to 100 microns. 6. The marking method according to claim 1, characterized in that the composition is randomly distributed on the surface of the object to obtain a unique pattern for each protected object. 7. The marking method according to claim 1, characterized in that the composition is distributed on the surface of the object with the formation of a latent image in the form of geometric shapes, figures, text, symbols, code, identification information. 8. The marking method according to claim 1, characterized in that the composition contains an additional security feature, including luminescent. 9. The marking method according to claim 1, characterized in that a composition is used that is indistinguishable on the surface of the object. 10. The method for identifying markings according to claim 1, characterized in that the composition is observed on the surface of the object under the influence of exciting radiation in a given spectral range, a predetermined initial distribution of luminescent particles is fixed on the surface of the object, then, without removing the exciting radiation, the composition is stimulated radiation in the wavelength range (300-700) nm, record a decrease in intensity only in part of the luminous points, fix the second distribution, and / or enter the result of the comparison in the database ny, and / or compare the resulting distribution with a given distribution stored in the database. 11. The marking identification device according to claim 10, characterized in that it contains a lens, a camera with an IR sensor for recording the distribution of luminescent particles on the surface of the object in the wavelength range (700-3000 nm), sources of exciting radiation in the spectrum range (700- 3000) nm, sources of stimulating radiation in the wavelength range (300-700) nm, a set of light filters, a power supply and an image processing unit. 12. The marking identification device according to claim 11, characterized in that it further comprises a lens, a camera with a visible range sensor for recording the distribution of luminescent particles on the surface of the object in the wavelength range of 400-700 nm, exciting radiation sources in the spectrum range 700-3000 nm, sources of stimulating radiation in the wavelength range of 300-400 nm and an image processing unit.

Images