CN108656783A - A kind of security article and its detection method and detecting system - Google Patents

Abstract

The invention provides a security product, a detection method and a detection system thereof. The security article is provided with a security pattern showing luminescent properties, the security pattern includes at least one first area and at least one second area, wherein: the first area can be excited by infrared light or ultraviolet light to emit light, but cannot be written by ultraviolet light anti-counterfeit information; the second area can be written with anti-counterfeit information by ultraviolet light, and can be excited by infrared light to emit light only after the anti-counterfeit information is written by ultraviolet light. The security article provided by the present invention has the characteristics of convenient detection and high concealment by taking advantage of the different light emitting characteristics of the first region and the second region. The invention also provides a detection method and a detection system for the above security products.

Description

A security product and its detection method and detection system

technical field

The invention relates to a security product, a detection method and a detection system thereof, and belongs to the technical field of security and anti-counterfeiting.

Background technique

Anti-counterfeiting technical means based on luminescent materials have a long history. At present, luminescent materials that conform to the Stokes effect, such as ultraviolet excitation and emission of visible light emission materials, that is, fluorescent materials; As well as anti-counterfeiting technical means such as paired and combined printing of fluorescent materials and infrared up-conversion materials, it has been widely used in high-end currency anti-counterfeiting and general anti-counterfeiting products (stamps, various tickets, certificates, etc.).

Patent CN1720145A proposes a security pattern and its manufacturing method. The security pattern shows the same color under the sunlight light source, and shows a color change when ultraviolet light is irradiated. In this invention, the luminescent material contained in the ink is actually a fluorescent material excited by ultraviolet light, and the detection process is relatively simple, which can be judged only by observing the color change of the pattern under visible light and ultraviolet light source.

Patent CN102555568A uses infrared up-conversion ink and ultraviolet fluorescent ink to pair and combine to realize anti-counterfeiting method, which improves the anti-counterfeiting machine-reading level of simple infrared up-conversion feature or ultraviolet fluorescence feature, thereby effectively realizing the purpose of using machine-readable composite anti-counterfeiting, and also improving printing. The pattern combination effect of the product improves the anti-counterfeiting effect.

With the popularization of the application of fluorescent materials and infrared up-conversion materials, counterfeiters can easily obtain such materials through commercial channels. Effective technical barriers. Therefore, it is very necessary to develop a security coded security product with high concealment and convenient detection.

Contents of the invention

In view of the above-mentioned defects in the prior art, the present invention provides a security product, the security pattern of which includes at least two areas with two different light emitting characteristics, so it has the characteristics of high concealment and convenient detection.

The present invention also provides a detection method for the above-mentioned security product, and the detection method is used to identify the authenticity and has the characteristics of convenient operation.

The present invention also provides a detection system for implementing the above detection method, which can detect the authenticity of security products in a static state and a moving state.

In order to achieve the above object, the present invention firstly provides a security article, the security article is provided with a security pattern showing luminescent properties, the security pattern includes at least one first area and at least one second area, wherein:

The first area can be excited by infrared light or ultraviolet light to emit light, but anti-counterfeiting information cannot be written by ultraviolet light;

The second area can be written with anti-counterfeit information by ultraviolet light, and can be further excited by infrared light to emit light only after the anti-counterfeit information has been written by ultraviolet light.

According to the security article provided by the present invention, the security pattern comprises a first region and a second region having different luminescent properties, wherein:

The first area cannot be written with anti-counterfeiting information by ultraviolet light, that is, the first area is a non-writable security information graphic area, which cannot store energy under ultraviolet light irradiation, but can generate emission under ultraviolet light or infrared light irradiation. Light;

The second area can be irradiated with ultraviolet light to write anti-counterfeiting information, that is, the second area is a security information graphic area with readable and writable functions. Under the irradiation of ultraviolet light, the energy of ultraviolet light can be stored to realize information writing. , and further using infrared light excitation, the stored energy can be released, thereby generating emitted light and realizing information readout. However, if the anti-counterfeiting information is not written in advance by ultraviolet light, it cannot be excited by infrared light to emit light.

In this way, the first region and the second region in the security pattern have the above-mentioned different luminous characteristics, so they can be compared with each other, and the coding information of the security pattern can be obtained correspondingly by irradiating the security pattern with infrared light and ultraviolet light, and then The authenticity of the security product is determined through the change of the coded information, so the security product has the characteristics of high concealment and convenient detection.

Specifically, the above-mentioned coded information can usually be represented by "0" and "1", where "1" is recorded as "1" when the light is on (light emitting signal can be detected), and "0" is marked when no light is on (light emitting signal is not detected). For example, if the first area can be excited by infrared light to emit light, and the second area has not been written with anti-counterfeiting information by ultraviolet light in advance, then under the irradiation of infrared light, the encoded information of the first area is "1" and the encoded information of the second area is "1". is "0", and the coded information of the security pattern is "10".

It can be understood that the above-mentioned ultraviolet light should have a certain luminous intensity, so that when the second region is irradiated, at least part of the energy of the ultraviolet light can be stored by the second region, and when the second region is subsequently excited by infrared light, the second region can Be excited to glow. Therefore, the ultraviolet light contained in ordinary sunlight obviously does not meet the requirements of the above ultraviolet light. Correspondingly, the infrared light contained in ordinary sunlight also cannot meet the above-mentioned requirements for infrared light, which excludes the possibility that the security product has the above-mentioned luminous properties in the ordinary sunlight environment. At the same time, it also makes the authenticity detection of security products need certain equipment to be realized, thereby ensuring the concealment of security products.

In the specific implementation process of the present invention, the number of the first area and the second area in the security pattern can be reasonably set according to actual needs. For example, the number of the first area and the second area are two and are set alternately. In the above case, The corresponding coded information is "1010" respectively.

The above-mentioned first region and second region can be excited to emit light by light of a specific wavelength (infrared light, ultraviolet light), in particular, it means that the emitted light generated under the irradiation of light with a specific wavelength is visible light. The wavelengths of visible light generated by the first region and the second region can be the same or different.

Specifically, the wavelength of the infrared light is greater than or equal to 800 nm, such as 980 nm; the wavelength of the ultraviolet light is less than 390 nm, such as 365 nm, or 254 nm.

The present invention does not specifically limit the number and relative positional relationship of the first area and the second area in the security pattern, and it can be reasonably designed by comprehensively considering factors such as anti-counterfeiting requirements and aesthetics. Specifically, it is preferable that the first area and the second area can be related to each other to form a whole, for example, they may be connected or even tangent, or they may not be connected.

Specifically, the first region can only be excited by infrared light to emit visible light; or can only be excited by ultraviolet light to emit visible light; or can be excited by both infrared light and ultraviolet light to emit visible light.

Specifically, the materials used to form the first region include fluorescent materials, or infrared up-conversion materials, or both fluorescent materials and infrared up-conversion materials.

Wherein, the fluorescent material is a material that emits visible light under the irradiation of ultraviolet light. It is generally believed that when irradiated by ultraviolet light, the fluorescent material enters an excited state after absorbing the light energy of ultraviolet light, and de-excites and emits visible light within a short period of time (such as 10 ^-9 -10 ^-7 seconds), and once the incident light stops , and the luminous phenomenon disappears immediately.

The present invention does not specifically limit the fluorescent materials used. Inorganic fluorescent materials can be selected, especially rare earth fluorescent materials, such as aluminate (SrAl ₂ O ₄ , CaAl ₂ O ₄ , BaAl ₂ O ₄ ) Lanthanides (Eu, Sm, Er, Nd) act as activators. Alternatively, an organic polymer fluorescent material or an organic small molecule fluorescent material can also be selected. The above-mentioned fluorescent materials can be prepared by referring to relevant literatures, or can be obtained through commercial purchase.

Infrared up-conversion material is a luminescent material that can emit visible light under the excitation of infrared light, also known as anti-Stokes luminescent material. In the present invention, the infrared up-conversion material used is not particularly limited, and it can be a conventional infrared up-conversion material in the field, such as a fluorine-containing compound material system, such as Cs ₂ GeF ₆ : 2% Re ⁴⁺ , or Nd ³⁺ : Pb ₃ M ₃ F ₁₉ (where M is Al, Ti, V, Cr, Fe, Ga). The above-mentioned infrared up-conversion materials can be prepared by referring to relevant literatures, or can be obtained through commercial purchase.

The above-mentioned fluorescent material and infrared up-conversion material can be formed on the security product by conventional methods in the field to obtain the first area, for example, the components such as fluorescent material and solvent are properly arranged, and then coated by spray coating, spin coating, flow coating, etc. Cover the surface of the security product, and wait for the solvent to volatilize or dry and solidify to form the first area.

In the specific implementation process of the present invention, the first area is obtained by printing with the first ink, wherein the first ink is selected from at least one of ultraviolet fluorescent ink and infrared up-conversion ink. That is to say, the first area is printed on the substrate by ultraviolet fluorescent ink, infrared up-conversion ink, or even a mixed ink of ultraviolet fluorescent ink and infrared up-conversion ink; the first area can also be divided into two or more The sub-regions, wherein the sub-regions are respectively printed by at least two of the above three inks.

For example, the first area is all printed with ultraviolet fluorescent ink or infrared up-conversion ink; another example is that a sub-area of the first area is printed with ultraviolet fluorescent ink, and the other sub-area is printed with infrared up-conversion ink; another example The entire first area is printed with a mixed ink of ultraviolet fluorescent ink and infrared up-conversion ink; for example, one sub-area of the first area is printed with the above-mentioned mixed ink, and the other sub-area is printed with ultraviolet fluorescent ink.

According to the material, color, printing process and other factors of the substrate, the above-mentioned ultraviolet fluorescent ink can be screen printing fluorescent ink, gravure fluorescent ink, offset printing fluorescent ink, embossing fluorescent ink and flexo printing fluorescent ink, etc. You can choose the current commercialized fluorescent ink Fluorescent anti-counterfeiting inks, such as invisible fluorescent inks, are colorless and transparent after printing, and appear red, green, yellow, brown, blue and other colors under ultraviolet light; or you can choose colored fluorescent inks, the coloring of which Pigments are commonly used pigments in fluorescent inks, such as permanent red, permanent violet, phthalocyanine blue, phthalocyanine green, etc.

Similarly, the above-mentioned infrared up-conversion ink can specifically choose the infrared anti-counterfeiting ink commonly used in the market at present, and its specific formula and preparation method are all known technologies, and the present invention does not make special limitations and excessive descriptions.

The above-mentioned mixed ink composed of ultraviolet fluorescent ink and infrared up-conversion ink is actually a kind of ultraviolet and infrared multiple anti-counterfeiting ink. Whether it is irradiated by ultraviolet light or infrared light, the first area can be excited to emit light, so it has double anti-counterfeiting effect.

Specifically, the substrate can be made of paper, plastic materials such as PVC, PP, PET, or even glass, or a mixture of the above two materials.

The above-mentioned second region, after being irradiated with ultraviolet light in advance, is further irradiated with infrared light to generate emitted light; however, if it is not irradiated with ultraviolet light in advance but directly irradiated with infrared light, it cannot be excited to emit light.

Specifically, the above-mentioned second region emits visible light while being irradiated by ultraviolet light, and after stopping the irradiation of ultraviolet light, the afterglow intensity of the visible light weakens to less than 0.32mcd/m ² within 2 seconds. That is, after stopping the ultraviolet light irradiation, the visible light weakens to be invisible to the naked eye within 2 seconds, and generally weakens to less than 0.32mcd/m ² within 0.2 seconds, such as 10-30ms, so that the human naked eye can hardly feel the afterglow The presence.

Therefore, the luminous afterglow time of the second area is very short, so after 2 seconds or even 0.2 seconds after removing the ultraviolet light irradiation, further such as 10-30ms, the afterglow of the emitted light disappears, and the infrared light can be further irradiated, so that the security product It also has the advantage of fast detection.

Further, after the second area is written with anti-counterfeiting information (irradiated) by ultraviolet light, when it is further irradiated by infrared light, the emitted light generated is visible light, and the infrared light is continuously irradiated, and the visible light weakens to less than 0.32 within 60 seconds. mcd/m ² .

Specifically, the light-emitting properties of the above-mentioned second region are provided by a light-excited light-emitting material, that is, the material used to form the second region includes a light-excited light-emitting material.

Photostimulated Luminescence (PSL) has an appropriate trap energy level. Under the excitation irradiation of ultraviolet light, the carriers in the host material can be trapped in the trap energy level and stored in a relatively stable state. Then it is excited by light of other bands (such as infrared light), which can release visible light at a short wavelength, which is essentially the carrier (such as electrons or holes) trapped in the trap in the matrix material and the lattice lattice. The process of carrier recombination at the luminescence center in .

In addition to the host material, the light-excited luminescent material must have two basic elements: luminescent centers and traps. Generally speaking, a trace amount of rare earth ions (transition metal ions) doped into the host material becomes the luminescent center. The trap situation is relatively complicated, such as the intrinsic defect of the host material can become a defect center, or it can also introduce a defect center in the host material by doping another rare earth ion (transition metal ion); The activator ions trap the matrix material.

In the present invention, the host material of the photostimulated luminescent material includes but not limited to silicate, phosphate, aluminate, tungstate, germanate, gallate, molybdate, garnet, stannate and zirconate At least one of salts, such as but not limited to, strontium stannate, calcium stannate, magnesium stannate, strontium aluminate, strontium silicate, calcium zirconate, calcium germanate or other materials; the luminescent center is a rare earth ion and at least one of transition metal ions, including but not limited to at least one of Eu ²⁺ , Tb ³⁺ , Sm ³⁺ , Sb ³⁺ and Mn ²⁺ .

The above photo-excited luminescent material, when irradiated by ultraviolet light, can store energy, that is, write anti-counterfeiting information; and when further excited by infrared light, it can release energy in the form of visible light, so that the second region has Unique luminous properties.

Furthermore, defect centers can also be introduced into the host material, specifically, the co-doped ions are rare earth ions, including but not limited to La ³⁺ , Dy ³⁺ , Tm ³⁺ , Sm ³⁺ , Yb ³⁺ and At least one of Gd ³⁺ and the like.

Specifically, the light-excited luminescent material used can be "Wang Zhilong, Zheng Guisen, Wang Shiqin, etc. Research on the Luminescent Properties of a New Electron-Trapping Optical Storage Material Sr ₂ SnO ₄ : Sb ³⁺ . Acta Physica Sinica, 2012,61(12):511 -516. "Sr ₂ SnO ₄ : 0.5% Sb ³⁺ ; or "Qin Qingsong, Ma Xinlong, Shao Yu, etc. Synthesis of new optical storage materials Sr ₂ SnO ₄ : Tb ^{3 +} , Li ⁺ and its infrared up-conversion light-excited luminescence properties. Sr ₂ SnO ₄ : 0.5% Tb ³⁺ , 0.5% Li ⁺ as recorded in Acta Physica Sinica, 2012, 61(9): 464-467.; it can also be Mentioned in "Xia Liu, Jiahua Zhang, Xia Zhang etal.Strongly enhancing photostimulated luminescence by doping Tm ³⁺ in Sr ₃ SiO ₅ :Eu ^{2 +} .Optics Letters,2013,38(2):148-150." Sr _2.99-x SiO ₅ :0.01Eu ²⁺ ,xTm ³⁺ (x＝0.0001-0.04); can also be "Ming Li, Xue Yu, Xuhui Xu et al. Color Variation BetweenPSL and PL in CaAl ₂ Si ₂ O ₈ :Tb ³⁺ with the Assistance of Trap Level.Journal of the American Ceramic Society,2015,98(7):2008-2010."Ca _0.965 Al ₂ Si ₂ O ₈ :0.5%Tb ³⁺ ,3 %Dy ³⁺ .

The light-stimulated luminescent materials reported in the above literature are generally used as information optical storage materials, and their synthesis conditions are strictly limited, and the light-stimulated luminescent materials cannot be obtained commercially, so they form an effective technical barrier for counterfeiters .

The light-excited luminescent material provided by the present invention has a host material that is a compound with good physical, chemical and thermal stability, so that the safety product also has the characteristics of good physical and chemical resistance. Moreover, since the traditional alkaline earth metal sulfide is not used as the matrix material, it also avoids the problem that the traditional sulfide matrix material is easy to decompose and produce sulfur-containing harmful substances, so it is environmentally friendly.

In the present invention, there is no special limitation on how to process the above-mentioned light-excited luminescent material to obtain the second region, and any acceptable method in the art can be adopted. In the specific implementation process of the present invention, the second region is obtained by printing the second ink, and the second ink includes the following components by weight:

40-60 parts of binder, 15-30 parts of filler, 1-5 parts of wax, 0-3 parts of mineral oil, 1-3 parts of surfactant, 1-3 parts of desiccant, and 15-3 parts of the light-excited luminescent material 20 servings.

Through the reasonable configuration of the above components, not only can the anti-counterfeiting ink have good printing adaptability, including good fluidity, adhesion, viscosity and drying, so that an ideal printing pattern can be obtained, and the printing The second region formed by the pattern has the above-mentioned light emitting characteristics.

Specifically, the light-stimulated luminescent material can be dispersed in various anti-counterfeiting ink systems in the form of pigments. The inventors have found that if the content of the light-stimulated luminescent material is too high, it will not only increase the raw material cost and processing cost of the anti-counterfeiting ink, but also emit light. The characteristics have not been significantly improved, and it will also affect the printing suitability of the anti-counterfeiting ink, such as causing problems such as the inability of the ink to transfer; on the contrary, if the content of the light-excited luminescent material is too low, it will cause difficulties in subsequent detection. Generally, based on the weight of the anti-counterfeit ink, the mass content of the light-excited luminescent material is 10-30%, further 15-30%, such as 15-20%.

Other components in the above-mentioned second ink, such as binders, fillers, waxes, mineral oils, surfactants and desiccants, can be selected from commonly used materials in the ink configuration process, such as polyurethane resin, phenolic resin or polyurethane modified Alkyd resin, etc. are used as binders, which can be reasonably selected and configured according to the actual ink type.

Generally, the above-mentioned second ink type can include offset printing ink, gravure printing ink, embossing printing ink, screen printing ink, flexo printing ink, etc., and then the second ink can be printed on the substrate by a matching printing method surface, to cover the substrate in whole or in part, thereby forming a second region. Wherein the substrate can be paper, plastic material such as PVC, PP, PET, etc., or even glass material, or a mixture of the above two materials.

The security pattern is obtained by printing the above-mentioned first ink and the second ink as matching inks on different areas of the same substrate. The security pattern is sequentially irradiated by infrared light and ultraviolet light to obtain corresponding coded information to verify the authenticity of the security product. Therefore, the security product has the advantages of convenient detection and high concealment.

The specific forms of security products provided by the present invention can be bills (such as banknotes, checks, tax invoices, vouchers, certificates of deposit, bank drafts, commercial drafts, etc.), cards (identity cards, employee cards, real estate certificates, passports, award-winning Certificates, marriage certificates, English level certificates, computer level certificates, etc.), documents (contract documents, and supporting documents, customs documents, etc.), as well as lottery tickets, admission tickets and other security products that need to carry anti-counterfeiting information.

Specifically, according to different types of security products and anti-counterfeiting requirements, the security pattern can be set on the security product in a corresponding form, for example, in the form of film, sticker, strip, label, trademark, security thread or packaging material. on safety products.

The present invention also provides a detection method for the above-mentioned security product, comprising the following steps:

Using infrared light to irradiate the security pattern on the security product to be detected, and obtain the generated first coded information;

After stopping the infrared light irradiation, use ultraviolet light to irradiate the security pattern;

After stopping the irradiation of ultraviolet light, use infrared light to irradiate the security pattern, and obtain the generated second coded information;

It is compared whether the first coded information and the second coded information are the same.

Specifically, the wavelength of the infrared light is greater than or equal to 800 nm, such as 980 nm; the wavelength of the ultraviolet light is less than 390 nm, such as 365 nm, or 254 nm.

It can be understood that the wavelength of the infrared light used twice should remain the same, so as to facilitate the comparison of the encoded information generated by the two infrared light irradiations, so as to identify the authenticity.

According to the detection method provided by the present invention, the authenticity of the security product to be detected can be judged by comparing the difference between the first coded information and the second coded information generated by the security pattern irradiated with infrared light twice before and after. The detection method has the advantage of simple operation.

Specifically, if the first coded information is the same as the second coded information, the security artifact is false; otherwise, the security artifact is true.

In the specific implementation process of the present invention, the irradiation time of the above-mentioned ultraviolet light is generally not more than 1min, usually not more than 10 seconds, such as 5 seconds, 4 seconds, 3 seconds, 2 seconds or 1 second; the irradiation time of infrared light is generally not more than 1min, usually can also be controlled within 10 seconds; generally stop ultraviolet light irradiation for about 2 seconds, usually within 0.2 seconds, such as 10-30ms, and further use infrared light to irradiate the security pattern. In this way, "fast charge and fast release" is realized, that is, whether it is the irradiation time of ultraviolet light, the irradiation time of infrared light, or the time interval between ultraviolet light irradiation and infrared light irradiation, it can be very short, so that the detection of security products is relatively fast. fast.

The above-mentioned detection method can be carried out in sequence according to the above-mentioned steps, and can also be adjusted according to actual needs. In a specific embodiment of the present invention, the detection method of a security product includes the following steps in turn:

1) Use ultraviolet light to irradiate the security pattern;

2) After stopping the ultraviolet light irradiation, use infrared light to irradiate the safety pattern, and obtain the generated second coded information;

3) Using infrared light again to irradiate the security pattern on the security product to be detected, and obtain the generated first coded information;

4) Compare whether the first coded information is the same as the second coded information.

As mentioned above, since the security product provided by the present invention can realize "fast charge and quick release", in step 3), when infrared light is used again, the coded information generated should also be the same as the coded information in step 2). There is a difference, so it is still possible to judge the authenticity.

It can be understood that the detection method provided by the present invention is not only applicable to security products to be detected in a static state, but also applicable to security products to be detected in a moving state.

The present invention also provides a detection system for implementing the above detection method, including an ultraviolet light source, an infrared light source, a detector and a logic control device, wherein,

The ultraviolet light source and the infrared light source are used to emit ultraviolet light and infrared light respectively;

The detector is used to detect the emitted light emitted by the security pattern when the infrared light irradiates the security pattern twice, and form detection signals respectively;

The logic control device is used to correspondingly generate first coded information and second coded information according to the respectively formed detection signals, and compare whether the first coded information and the second coded information are the same.

Specifically, it is usually possible to control the excitation power of the ultraviolet light source to be less than 6W, such as 3W or 4W, such as the UV LED flashlight (365nm, 3W) of Japan Nicha Company, or the hand-held ultraviolet lamp (4W, 254nm) of Beijing Tianmai Henghui Light Source Company. ); Usually, the excitation power of the infrared light source is controlled to be less than 1W, such as 200-300mW, such as the 980nm infrared light source (300mW) of Changchun New Industry Photoelectric Technology Co., Ltd.

The detector used in the present invention is not particularly limited, and may be a photodetector commonly used in the field, which generally includes a filter to detect the emitted light generated by the security pattern and form a detection signal.

Specifically, the logic control device may include a signal receiving module and a logic judgment module. The signal receiving module is used to receive the detection signal; the logic judgment module is used to convert the detection signal into corresponding coded information, compare whether the two coded information are the same, and give the comparison result

Further, the above logic control device can also be used to control the work of the infrared light source and the ultraviolet light source, including but not limited to controlling the irradiation time and irradiation sequence. Correspondingly, the logic control device may also include a program control module, the working principle of which is roughly the same as that of the current programmable controller, and a built-in control program to control the irradiation time and irradiation sequence of the infrared light source and the ultraviolet light source.

The above detection system can detect the authenticity of the security products in the static state and the moving state.

The present invention also provides another detection system, including an infrared module, an ultraviolet module, and a logic control module, wherein:

The infrared module is used to irradiate the security pattern with infrared light twice successively, and obtain the emitted light corresponding to the security pattern to form the first coded information and the second coded information respectively;

The ultraviolet module is used to irradiate the security pattern with ultraviolet light;

The logic control module is used for comparing whether the first coded information and the second coded information are the same, so as to judge the authenticity of the security product or the security product.

The detection system is especially suitable for the detection of security products in a moving state. In order to further facilitate detection, the above-mentioned infrared module may include a first infrared module and a second infrared module, wherein the first infrared module is used to first emit an infrared light source to illuminate the security pattern, and form a first code according to the emitted light emitted by the security pattern Information; the second infrared module is used to emit an infrared light source to irradiate the security pattern after the ultraviolet module stops working, and form a second coded information according to the emitted light emitted by the security pattern.

It can be understood that the installation order of the first infrared module, the second infrared module and the ultraviolet module should be based on the movement direction of the security product. For example, if the movement direction is horizontal to the right, then the first infrared module and the second infrared module can be respectively set On the left and right sides of the ultraviolet module, during the movement of the security product, it is sequentially irradiated by the infrared light of the first infrared module, the ultraviolet light of the ultraviolet module and the infrared light of the second infrared module.

The detection system judges the authenticity of security products according to the following steps:

1. The first infrared module irradiates the security pattern with infrared light, and obtains the emitted light of the security pattern under the irradiation of the infrared light source to form the first coded information;

2. The ultraviolet module irradiates the security pattern with ultraviolet light;

3. The second infrared module irradiates the security pattern with infrared light, and obtains the emitted light of the security pattern under the irradiation of the infrared light source to form the second coded information

4. Determine the authenticity of the security product by the logic control module: if the first coded information and the second coded information are different, the security product is true; if they are the same, the security product is false.

Further, the above-mentioned logic control module is also used to control the work of the infrared module and the ultraviolet module, including but not limited to controlling the working sequence and working time of the infrared module and the ultraviolet module.

In the security product provided by the present invention, the security pattern has two mutual first areas and second areas, wherein the first area is a non-writable security information graphics area, and the second area is a read-write security information area. Graphics area. The authenticity of the security product can be judged according to whether the coding information of the two areas is the same under the two infrared light irradiations before and after. Therefore, the security product has the characteristics of convenient detection and high concealment, and can also realize rapid detection at the same time. Moreover, the safety product not only has good chemical stability and thermal stability, but also has the characteristics of environmental friendliness.

The detection method for safety products provided by the invention has the advantages of simple operation and high efficiency, and is beneficial to practical application and popularization.

The detection system provided by the present invention can use conventional instruments and equipment in the field, which is beneficial to the authenticity detection of security products, and is applicable to security products in a moving state or a static state.

Another detection system provided by the present invention has a simple structure and is especially suitable for authenticity detection of security products in a moving state.

Description of drawings

Fig. 1 is a flow chart of a detection method for security products provided by an embodiment of the present invention;

Figure 2 is a schematic diagram of changes in the security product provided by Example 1 of the present invention during the detection process;

Figure 3 is a schematic diagram of changes in the security product provided by Example 2 of the present invention during the detection process;

Figure 4 is a schematic diagram of changes in the security product provided by Example 3 of the present invention during the detection process;

Figure 5 is a schematic diagram of changes in the security product provided by Example 4 of the present invention during the detection process;

Figure 6 is a schematic diagram of changes in the security product provided by Example 5 of the present invention during the detection process;

Figure 7 is a schematic diagram of changes in the security product provided by Example 6 of the present invention during the detection process;

Fig. 8 is a schematic diagram of changes in the security product provided by Example 7 of the present invention during the detection process;

FIG. 9 is a schematic diagram of changes in the security product provided by Example 8 of the present invention during the detection process;

Figure 10 is a schematic diagram of changes in the security product provided by Example 9 of the present invention during the detection process;

Figure 11 is a schematic diagram of changes in the security product provided by Example 10 of the present invention during the detection process;

Figure 12 is a schematic diagram of changes in the security product provided by Example 11 of the present invention during the detection process;

Figure 13 is a schematic diagram of changes in the security product provided by Example 12 of the present invention during the detection process;

Figure 14 is a schematic diagram of changes in the security product provided by Example 13 of the present invention during the detection process;

Figure 15 is a schematic diagram of changes in the security product provided by Example 14 of the present invention during the detection process;

Fig. 16 is a schematic diagram of the working state of the detection system provided by an embodiment of the present invention;

Fig. 17 is a schematic view of the working state of the detection system provided by another embodiment of the present invention.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Example 1

This embodiment provides a security product, the security pattern of which includes a first area and a second area, wherein the first area is printed with ultraviolet fluorescent ink, and the second area is printed with anti-counterfeit ink, the anti-counterfeit ink belongs to offset printing ink, The specific formula is shown in Table 1 below.

Among them, the above-mentioned light-excited luminescent material is Sr ₂ SnO ₄ :0.5% Sb ³⁺ , which is the reference document "Wang Zhilong, Zheng Guisen, Wang Shiqin et al. Research on the luminescent properties of new electron-trapping optical storage materials Sr ₂ SnO ₄ :Sb ³⁺ . Acta Physica Sinica, 2012, 61(12): 511-516." Synthesized by the method described in.

Table 1

component name Quality score (%) Phenolic Resin 30 Polyurethane Modified Alkyd Resin twenty three calcium carbonate 25 wax 2 Photostimulated Luminescent Materials 16 mineral oil 2 desiccant 2

The first region emits visible light under the irradiation of ultraviolet light, but does not change in color under the irradiation of infrared light. The second region emits fluorescence under the irradiation of ultraviolet light, and further emits visible light under the irradiation of infrared light; if it is directly irradiated with infrared light without ultraviolet light irradiation, the second region does not show up-conversion luminescence.

The detection method of safety product in the present embodiment is as shown in Figure 1, specifically comprises the following steps:

1. Use infrared light to irradiate the security pattern on the security product to be detected, and obtain the generated first coded information;

2. After stopping infrared light irradiation, use ultraviolet light to irradiate the safety pattern;

3. After stopping the ultraviolet light irradiation, use infrared light to irradiate the safety pattern, and obtain the generated second coded information;

4. Compare whether the first coded information is the same as the second coded information.

Specifically, as shown in Figure 2, in step 1, when infrared light is used to irradiate the security pattern, neither the first area nor the second area emits light, and the first coded information is "00"; in step 2, when When the security pattern is irradiated with ultraviolet light, both the first area and the second area emit light, and the coded information is "11"; in step 3, when the security pattern is irradiated with infrared light, the first area does not emit light, and the second area emits light, Then the second coded information is "01"; in step 4, since the first coded information is different from the second coded information, the security product is true.

Example 2

This embodiment provides a security product, the security pattern of which includes a first area and a second area, wherein the first area is printed using a mixed ink composed of ultraviolet fluorescent ink and infrared up-conversion ink, and the second area is made of anti-counterfeiting ink. After printing, the anti-counterfeiting ink belongs to gravure printing ink, and the specific formula is shown in Table 2 below:

Table 2

material name Quality score (%) Phenolic Resin 30 Polyurethane Modified Alkyd Resin 25 calcium carbonate 20 wax 5 Photostimulated Luminescent Materials 16 Surfactant 2 desiccant 2

Among them, the above-mentioned photostimulated luminescent material is Sr _2.9896 SiO ₅ :0.01Eu ²⁺ ,0.0004Tm ³⁺ , which is the reference document "XiaLiu, Jiahua Zhang, Xia Zhang et al.Strongly enhancing photostimulatedluminescence by doping Tm ³⁺ in Sr ₃ SiO ₅ :Eu ²⁺ . Optics Letters, 2013,38(2):148-150." Synthesized.

The first area emits visible light under the irradiation of ultraviolet light and infrared light; the second area emits fluorescence under the irradiation of ultraviolet light, and further emits visible light under the irradiation of infrared light; if it is directly irradiated with infrared light without ultraviolet light, The second region exhibits no upconversion luminescence.

The detection method of the security product in this embodiment is consistent with that of Embodiment 1, and the specific process can be seen in FIG. 1 . Wherein, as shown in Figure 3, in step 1, when using infrared light to irradiate the security pattern, the first area emits light, and the second area does not emit light, then the first encoded information is "10"; in step 2, when using When the security pattern is irradiated with ultraviolet light, both the first area and the second area emit light, and the coded information is "11"; in step 3, when the security pattern is irradiated with infrared light, both the first area and the second area emit light, then The second coded information is "11"; in step 4, since the first coded information is different from the second coded information, the security product is true.

Example 3

This embodiment provides a security product, the security pattern of which includes a first area and a second area, wherein the first area is printed by using infrared up-conversion ink, and the second area is printed by using anti-counterfeiting ink, and the anti-counterfeiting ink belongs to gravure printing Ink, the specific formula is as shown in Table 3 below:

table 3

material name Quality score (%) Phenolic Resin 30 Polyurethane Modified Alkyd Resin 25 calcium carbonate 20 wax 5 Photostimulated Luminescent Materials 16 Surfactant 2 desiccant 2

Among them, the light-excited luminescent material is Ca _0.965 Al ₂ Si ₂ O ₈ :0.5% Tb ³⁺ , 3% Dy ³⁺ , which is the reference "MingLi, Xue Yu, Xuhui Xu et al. Color Variation Between PSL and PL in CaAl ₂ Si ₂ O ₈ : Tb ³⁺ with the Assistance of Trap Level. Journal of the American Ceramic Society, 2015, 98(7): 2008-2010.” Synthesized.

The first area emits visible light under the irradiation of infrared light; the second area emits fluorescence under the irradiation of ultraviolet light, and further emits visible light under the irradiation of infrared light; No upconversion luminescence is exhibited.

The detection method of the security product in this embodiment is consistent with that of Embodiment 1, and the specific process can be seen in FIG. 1 . Wherein, as shown in Figure 4, in step 1, when infrared light is used to irradiate the security pattern, the first area emits light, and the second area does not emit light, then the first encoded information is "10"; in step 2, when the security pattern is illuminated with When the security pattern is irradiated with ultraviolet light, the first area does not emit light, and the second area emits light, so the coded information is "01"; in step 3, when the security pattern is irradiated with infrared light, both the first area and the second area emit light, Then the second coded information is "11"; in step 4, since the first coded information and the second coded information are different, the security product is true.

Example 4

This embodiment provides a security product, the security pattern of which includes a first area and a second area, wherein the first area is obtained by printing with ultraviolet fluorescent ink, and the second area is obtained by printing with anti-counterfeit ink, and the formula of the anti-counterfeit ink is the same as that of The anti-counterfeiting ink in Example 1 is completely consistent.

The first area emits visible light under the irradiation of ultraviolet light; the second area emits fluorescence under the irradiation of ultraviolet light, and further emits visible light under the irradiation of infrared light; if it is directly irradiated with infrared light without ultraviolet light, the second area does not exhibits upconversion luminescence.

The detection method of the security product in this embodiment is consistent with that of Embodiment 1, and the specific process can be seen in FIG. 1 . Wherein, as shown in Figure 5, in step 1, when infrared light is used to irradiate the security pattern, neither the first area nor the second area emits light, and the first code information is "00"; in step 2, when the security pattern is irradiated with When the security pattern is irradiated with ultraviolet light, both the first area and the second area emit light, and the coded information is "11"; in step 3, when the security pattern is irradiated with infrared light, the first area does not emit light, and the second area emits light. Then the second coded information is "01"; in step 4, since the first coded information is different from the second coded information, the security product is true.

Example 5

This embodiment provides a security product, the security pattern of which includes a first area and a second area, wherein the first area is obtained by printing with infrared up-conversion ink, and the second area is obtained by printing with anti-counterfeit ink. The formula of the anti-counterfeit ink It is completely consistent with the anti-counterfeiting ink in Example 2.

The first area emits visible light under the irradiation of infrared light; the second area emits fluorescence under the irradiation of ultraviolet light, and further emits visible light under the irradiation of infrared light; if it is directly irradiated with infrared light without ultraviolet light irradiation, the second area will not exhibits upconversion luminescence.

The detection method of the security product in this embodiment is consistent with that of Embodiment 1, and the specific process can be seen in FIG. 1 . Wherein, as shown in Figure 6, in step 1, when infrared light is used to irradiate the security pattern, the first area emits light, and the second area does not emit light, then the first encoded information is "10"; in step 2, when the security pattern is illuminated with When the security pattern is irradiated with ultraviolet light, both the first area and the second area emit light, and the coded information is "01"; in step 3, when the security pattern is irradiated with infrared light, the first area does not emit light, and the second area emits light. Then the second coded information is "11"; in step 4, since the first coded information and the second coded information are different, the security product is true.

Example 6

This embodiment provides a security product, the security pattern of which includes two first regions and one second region, wherein the first region on the left, the second region in the middle and the first region on the right are respectively made using ultraviolet fluorescent light Ink, anti-counterfeiting ink and infrared up-conversion ink are printed. Wherein the anti-counterfeiting ink is completely consistent with the anti-counterfeiting ink used in Example 3.

The detection method of the security product in this embodiment is consistent with that of Embodiment 1, and the specific process can be seen in FIG. 1 . Wherein, as shown in Figure 7, in step 1, when infrared light is used to irradiate the safety pattern, neither the first area on the left side nor the second area in the middle emits light, and the first area on the right side emits light, then the first code The information is "001"; in step 2, when the security pattern is irradiated with ultraviolet light, both the first area on the left and the second area in the middle emit light, and the first area on the right does not emit light, then the encoded information is "110 "; in step 3, when infrared light is used to irradiate the security pattern, the first area on the left does not emit light, the second area in the middle emits light and the first area on the right both emits light, then the second coded information is "011" ; In step 4, since the first coded information and the second coded information are different, the security product is true.

Example 7

This embodiment provides a security product, the security pattern of which includes two first regions and a second region, wherein the first regions on both sides are printed with ultraviolet fluorescent ink, and the second region in the middle is printed with anti-counterfeiting Ink printing is obtained. Wherein the anti-counterfeiting ink is completely consistent with the anti-counterfeiting ink used in Example 3.

The detection method of the security product in this embodiment is consistent with that of Embodiment 1, and the specific process can be seen in FIG. 1 . Wherein, as shown in Figure 8, in step 1, when infrared light is used to irradiate the security pattern, the first areas on both sides and the second area in the middle do not emit light, and the first coded information is "000"; In step 2, when the security pattern is irradiated with ultraviolet light, all three areas emit light, and the coded information is "111"; in step 3, when the security pattern is irradiated with infrared light, the first areas on both sides do not emit light, If the second area in the middle emits light, the second encoded information is "010"; in step 4, since the first encoded information and the second encoded information are different, the security product is true.

Example 8

This embodiment provides a security product, the security pattern of which includes two first regions and a second region, wherein the first regions on both sides are printed with infrared up-conversion luminescent ink, and the second region in the middle is Printed with security ink. Wherein the anti-counterfeiting ink is completely consistent with the anti-counterfeiting ink used in Example 3.

The detection method of the security product in this embodiment is consistent with that of Embodiment 1, and the specific process can be seen in FIG. 1 . Wherein, as shown in Figure 9, in step 1, when the security pattern is irradiated with infrared light, the first areas on both sides emit light, and the second area in the middle does not emit light, so the first coded information is "101"; In step 2, when the security pattern is irradiated with ultraviolet light, the first areas on both sides do not emit light, and the second area in the middle emits light, then the coded information is "010"; in step 3, when the security pattern is irradiated with infrared light When patterning, the first area on both sides and the second area in the middle emit light, and the second coded information is "111"; in step 4, since the first coded information and the second coded information are different, the security product is true.

Example 9

This embodiment provides a security product, the security pattern of which includes two first regions and two second regions, and the first regions and the second regions are arranged alternately. The first area is printed with ultraviolet fluorescent ink, and the two second areas are printed with anti-counterfeiting ink. Wherein the anti-counterfeiting ink is completely consistent with the anti-counterfeiting ink used in Example 3.

The detection method of the security product in this embodiment is consistent with that of Embodiment 1, and the specific process can be seen in FIG. 1 . Wherein, as shown in Figure 10, in step 1, when the security pattern is irradiated with infrared light, the two first areas and the two second areas do not emit light, then the first coded information is "0000"; in step 2 , when the security pattern is irradiated with ultraviolet light, the two first regions and the two second regions do not emit light, and the coded information is "1111"; in step 3, when the security pattern is irradiated with infrared light, the two second regions If one area does not emit light and both second areas emit light, then the second encoded information is "0101"; in step 4, since the first encoded information and the second encoded information are different, the security product is true.

Example 10

This embodiment provides a security product, the security pattern of which includes two first regions and two second regions, and the first regions and the second regions are arranged alternately. The first area is printed with infrared up-conversion luminescent ink, and the two second areas are printed with anti-counterfeit ink. Wherein the anti-counterfeiting ink is completely consistent with the anti-counterfeiting ink used in Example 3.

The detection method of the security product in this embodiment is consistent with that of Embodiment 1, and the specific process can be seen in FIG. 1 . Wherein, as shown in Figure 11, in step 1, when infrared light is used to irradiate the security pattern, both the first areas emit light, and neither of the two second areas emit light, then the first encoded information is "1010"; In step 2, when the security pattern is irradiated with ultraviolet light, neither of the two first regions emits light, but both of the second regions emit light, and the coded information is "0101"; in step 3, when the security pattern is irradiated with infrared light , the four regions all emit light, and the second coded information is "1111"; in step 4, since the first coded information and the second coded information are different, the security product is true.

Example 11

This embodiment provides a security product, the security pattern of which includes four first areas and two second areas, from left to right: the first area (obtained by ultraviolet fluorescent ink printing), the second area (using anti-counterfeiting ink printing), the first area (obtained by printing with infrared up-conversion luminescent ink), the first area (obtained by printing with ultraviolet fluorescent ink), the second area (obtained by printing with anti-counterfeiting ink), the first area (obtained by printing with infrared up-conversion printed with luminescent ink). Wherein the anti-counterfeiting ink is completely consistent with the anti-counterfeiting ink used in Example 3.

The detection method of the security product in this embodiment is consistent with that of Embodiment 1, and the specific process can be seen in FIG. 1 . Wherein, as shown in Figure 12, in step 1, when the security pattern is irradiated with infrared light, the first coded information is "001001"; in step 2, when the security pattern is irradiated with ultraviolet light, the coded information is "110110 "; in step 3, when infrared light is used to irradiate the security pattern, the second coded information is "011011"; in step 4, since the first coded information and the second coded information are different, the security product is true.

Example 12

This embodiment provides a security product, the security pattern of which includes four first areas and two second areas, from left to right: the first area (obtained by ultraviolet fluorescent ink printing), the second area (using anti-counterfeiting ink printing), the first area (obtained by printing with ultraviolet fluorescent ink), the first area (obtained by printing with infrared up-conversion luminescent ink), the second area (obtained by printing with anti-counterfeiting ink), the first area (obtained by printing with infrared up-conversion printed with luminescent ink). Wherein the anti-counterfeiting ink is completely consistent with the anti-counterfeiting ink used in Example 3.

The detection method of the security product in this embodiment is consistent with that of Embodiment 1, and the specific process can be seen in FIG. 1 . Wherein, as shown in Figure 13, in step 1, when the security pattern is irradiated with infrared light, the first coded information is "000101"; in step 2, when the security pattern is irradiated with ultraviolet light, the coded information is "111010 "; in step 3, when infrared light is used to irradiate the security pattern, the second coded information is "010111"; in step 4, since the first coded information and the second coded information are different, the security product is true.

Example 13

This embodiment provides a security product, the security pattern of which includes four first areas and two second areas, from left to right: the first area (obtained by ultraviolet fluorescent ink printing), the second area (using anti-counterfeiting printed ink), the first area (obtained by printing with infrared up-conversion luminescent ink), the second area (obtained by printing with anti-counterfeiting ink), the first area (obtained by printing with infrared up-conversion luminescent ink), the first area (obtained by printing with ultraviolet printed with fluorescent ink). Wherein the anti-counterfeiting ink is completely consistent with the anti-counterfeiting ink used in Example 3.

The detection method of the security product in this embodiment is consistent with that of Embodiment 1, and the specific process can be seen in FIG. 1 . Among them, as shown in Figure 14, in step 1, when the security pattern is irradiated with infrared light, the first coded information is "001010"; in step 2, when the security pattern is irradiated with ultraviolet light, the coded information is "110101 "; in step 3, when infrared light is used to irradiate the security pattern, the second coded information is "011110"; in step 4, since the first coded information and the second coded information are different, the security product is true.

Example 14

This embodiment provides a security product, the security pattern of which includes four first areas and two second areas, from left to right: the first area (printed by infrared up-conversion luminescent ink), the second area ( Printed using anti-counterfeiting ink), the first area (obtained by printing with ultraviolet fluorescent ink), the second area (obtained by printing with anti-counterfeiting ink), the first area (obtained by printing with ultraviolet fluorescent ink), the first area (obtained by infrared up-conversion printed with luminescent ink). Wherein the anti-counterfeiting ink is completely consistent with the anti-counterfeiting ink used in Example 3.

The detection method of the security product in this embodiment is consistent with that of Embodiment 1, and the specific process can be seen in FIG. 1 . Wherein, as shown in Figure 15, in step 1, when the security pattern is irradiated with infrared light, the first coded information is "100001"; in step 2, when the security pattern is irradiated with ultraviolet light, the coded information is "011110 "; in step 3, when infrared light is used to irradiate the security pattern, the second coded information is "110101"; in step 4, since the first coded information and the second coded information are different, the security product is true.

Example 15

This embodiment provides a detection system for detecting the security products in Embodiments 1-14, which specifically includes: an ultraviolet light source, an infrared light source, a detector and a logic control device, wherein,

The ultraviolet light source and the infrared light source are used to emit ultraviolet light and ultraviolet light respectively to irradiate the security pattern on the security product;

The detector is used to detect the emitted light emitted by the security pattern when the infrared light irradiates the security pattern twice, and form detection signals respectively;

The logic control device is used for correspondingly generating first coded information and second coded information according to the respectively formed detection signals, and comparing whether the first coded information and the second coded information are the same.

Refer to Figure 16 for the schematic diagram of the working state of the detection system, and refer to Figure 1 for the workflow of using the detection system to detect security products, including the following steps:

1. Use an infrared light source to irradiate the safety pattern with infrared light, and at the same time, use a detector to detect the emitted light generated by the safety pattern, and send the generated first detection signal to the logic control device;

2. Use ultraviolet light source to irradiate the safety pattern with ultraviolet light;

3. Use an infrared light source to irradiate the safety pattern with infrared light, and at the same time, use a detector to detect the emitted light generated by the safety pattern, and send the generated first detection signal to the logic control device;

4. The logic control device generates first encoded information and second encoded information correspondingly according to the received first detection signal and second detected signal, and compares whether the first encoded information and the second encoded information are the same. If they are the same, the security artifact is false; if they are different, the security artifact is true.

Example 16

This embodiment provides a detection system for detecting the security products in Embodiments 1-14, which specifically includes: an infrared module, an ultraviolet module, and a logic control module, wherein:

The infrared module is used to irradiate the security pattern with infrared light twice successively, and obtain the emitted light corresponding to the security pattern to form the first coded information and the second coded information respectively;

The ultraviolet module is used to irradiate the security pattern with ultraviolet light;

The logic control module is used to compare whether the first coded information and the second coded information are the same.

Specifically, the infrared module includes a first infrared module and a second infrared module, wherein the first infrared module is used to first emit an infrared light source to irradiate the security pattern, and form the first coded information according to the emitted light emitted by the security pattern; the second The infrared module is used to emit an infrared light source to irradiate the security pattern after the ultraviolet module stops working, and form the second coded information according to the emitted light emitted by the security pattern.

Moreover, the first infrared module and the second infrared module are respectively arranged on both sides of the ultraviolet module, so that the movement direction of the security product is horizontal to the right, thereby realizing the detection of the security product in a moving state.

Refer to Figure 17 for the schematic diagram of the working state of the detection system, and refer to Figure 1 for the workflow of using the detection system to detect security products, which specifically includes the following steps:

1. Use the first infrared module to irradiate the security pattern with infrared light, and obtain the emitted light of the security pattern under the irradiation of the infrared light source to form the first coded information;

2. Use the ultraviolet module to irradiate the safety pattern with ultraviolet light;

3. Use the second infrared module to irradiate the security pattern with infrared light, and obtain the emitted light of the security pattern under the irradiation of the infrared light source to form the second coded information

4. Determine the authenticity of the security product or the security product by the logic control module: if the first coded information and the second coded information are different, the security product is true; if they are the same, the security product is false.

It should be noted that in the description of the present invention, the terms "first region" and "second region" are only used to describe different regions for convenience, and correspondingly, "first ink" and "second ink" are only The inks used in different areas are described for convenience, and should not be understood as indicating or implying a sequential relationship, relative importance, or implicitly indicating the number of technical features indicated.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the various embodiments of the present invention. scope.

Claims (17)

1. A security article, characterized in that the security article is provided with a security pattern exhibiting luminous properties, said security pattern comprising at least one first region and at least one second region, wherein: The first region can be excited by infrared light or ultraviolet light to emit light, but anti-counterfeiting information cannot be written by ultraviolet light; The second region can be written with anti-counterfeit information by ultraviolet light, and can be further excited by infrared light to emit light only after the anti-counterfeit information has been written by ultraviolet light. 2. The security product according to claim 1, wherein the first region can only be excited by infrared light to emit visible light; or can only be excited by ultraviolet light to emit visible light; or can be excited by infrared light to emit visible light, It can also be excited by ultraviolet light to emit visible light. 3. The security article according to claim 1, wherein the second region emits visible light when irradiated by ultraviolet light, and after stopping the ultraviolet light irradiation, the afterglow intensity of the visible light weakens to less than 0.32 within 2 seconds. mcd/m ² . 4. The security article according to claim 1 or 3, characterized in that, when the second region is further irradiated with infrared light after being irradiated by ultraviolet light, the emitted light generated is visible light, and the visible light is visible at 60 Weaken to less than 0.32mcd/m ² within seconds. 5. The security article according to any one of claims 1, 3-4, characterized in that the material used to form the second region includes a photo-excitable luminescent material. 6. The security product according to claim 5, characterized in that, the light-excited luminescent material adopts silicate, phosphate, aluminate, tungstate, germanate, gallate, molybdate, At least one of garnet, stannate and zirconate is used as a matrix material, and at least one of rare earth ions and transition metal ions is used as a luminescent center. 7. The security article according to claim 6, characterized in that, the light-excited luminescent material adopts at least one of Eu ²⁺ , Tb ³⁺ , Sm ³⁺ , Sb ³⁺ and Mn ²⁺ as the luminescent center . 8. The security article of claim 6, wherein the matrix material further comprises co-doped rare earth ions. 9. The security article according to claim 8, characterized in that said co-doped rare earth ions include La ³⁺ , Dy ³⁺ , Tm ³⁺ , Sm ³⁺ , Yb ³⁺ and Gd ³⁺ at least one. 10. The security article according to any one of claims 5-9, wherein the second region is printed with a second ink, and the second ink includes the following components by weight: 40-60 parts of binder, 15-30 parts of filler, 1-5 parts of wax, 0-3 parts of mineral oil, 1-3 parts of surfactant, 1-3 parts of desiccant, and 15-3 parts of the light-excited luminescent material 20 servings. 11. The security article according to any one of claims 1-10, characterized in that the security article is a note of value, a card or a document. 12. A detection method for a security product according to any one of claims 1-11, characterized in that it comprises the steps of: Using infrared light to irradiate the security pattern on the security product to be detected, and obtain the generated first coded information; After stopping the irradiation of infrared light, irradiating the security pattern with ultraviolet light; After stopping the ultraviolet light irradiation, use infrared light to irradiate the security pattern, and obtain the generated second coded information; It is compared whether the first coded information and the second coded information are the same. 13. The detection method according to claim 12, characterized in that the wavelengths of the two infrared lights are consistent. 14. The detection method according to claim 12 or 13, characterized in that the security article to be detected is in a static state or a moving state. 15. A detection system for implementing the detection method according to any one of claims 12-14, comprising: an ultraviolet light source, an infrared light source, a detector and a logic control device, wherein, The detector is used to detect the emitted light emitted by the security pattern when the infrared light irradiates the security pattern twice, and form detection signals respectively; The logic control device is used to correspondingly generate first coded information and second coded information according to the respectively formed detection signals, and compare whether the first coded information and the second coded information are the same. 16. The detection system according to claim 15, wherein the excitation power of the ultraviolet light source is less than 6W, and the excitation power of the infrared light source is less than 1W. 17. A detection system for implementing the detection method according to any one of claims 12-14, comprising: an infrared module, an ultraviolet module, and a logic control module, wherein: The infrared module is used to irradiate the security pattern with infrared light twice successively, and obtain the emitted light corresponding to the security pattern to form the first coded information and the second coded information respectively; The ultraviolet module is used to irradiate the security pattern with ultraviolet light; The logic control module is used to compare whether the first coded information and the second coded information are the same.