CN113580806B - Security element and security document - Google Patents
Security element and security document Download PDFInfo
- Publication number
- CN113580806B CN113580806B CN202110826063.2A CN202110826063A CN113580806B CN 113580806 B CN113580806 B CN 113580806B CN 202110826063 A CN202110826063 A CN 202110826063A CN 113580806 B CN113580806 B CN 113580806B
- Authority
- CN
- China
- Prior art keywords
- counterfeiting
- area
- security
- copy
- functional
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/30—Identification or security features, e.g. for preventing forgery
- B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
- B42D25/21—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose for multiple purposes
Landscapes
- Printing Methods (AREA)
Abstract
The invention provides a security element and a security document, wherein the security element comprises a substrate and a functional layer, at least one side of the substrate comprises a security area and a non-security area; the functional layer is arranged in the anti-counterfeiting area, the functional layer is provided with at least one absorption peak, at least one excitation peak and at least one emission peak in a specified waveband, the material of the functional layer comprises rare earth doped nitrogen silicide, and the specified waveband comprises a visible light waveband and/or an ultraviolet light waveband. The appearance color of the anti-counterfeiting area is the same as that of the non-anti-counterfeiting area, the appearance color of the anti-counterfeiting copy obtained after the anti-counterfeiting area is copied is different from that of the anti-counterfeiting area, and the appearance color of the non-anti-counterfeiting copy obtained after the non-anti-counterfeiting area is copied is the same as that of the non-anti-counterfeiting area; or the appearance color of the anti-counterfeiting area is different from that of the non-anti-counterfeiting area, and the appearance color of the copy obtained after the anti-counterfeiting area and the non-anti-counterfeiting area are copied is the same.
Description
Technical Field
The invention relates to the technical field of anti-counterfeiting, in particular to an anti-counterfeiting element and a security document.
Background
At present, with the development and progress of technology, various devices for copying, such as digital cameras, copiers with scanning functions, image processing software and the like, are popularized to the public, so that convenience is brought to social life and potential safety hazards are caused, lawless persons can use the devices for counterfeiting, such as counterfeiting bank notes, passports, identity documents, official document and other securities, and meanwhile, because the technologies and the devices are easy to obtain and simple to operate, the technical threshold of lawless persons for carrying out illegal behaviors is reduced, and the similar counterfeiting cases occur in recent years, so that the lawful rights and property safety of the masses of people are threatened.
Therefore, an effective anti-copy technology is needed to prevent lawbreakers from performing illegal activities by simple copying, scanning and photographing methods.
Disclosure of Invention
The present invention has been made to solve at least one of the problems occurring in the prior art or the related art.
To this end, a first aspect of the invention provides a security element.
A second aspect of the invention is to provide a security document.
In view of this, according to a first aspect of the present invention, there is provided a security element comprising a substrate and a functional layer, at least one side of the substrate comprising a security area and a non-security area. The functional layer is arranged in the anti-counterfeiting area and has at least one absorption peak, at least one excitation peak and at least one emission peak within a wave band of 400 nm-700 nm. The appearance color of the anti-counterfeiting area is different from the appearance color of the anti-counterfeiting copy obtained after the anti-counterfeiting area is subjected to copying treatment.
In this design, the security element comprises a substrate and a functional layer, at least one side of the substrate comprising a security area. The functional layer is arranged in the anti-counterfeiting area and has at least one absorption peak, at least one excitation peak and at least one emission peak within a wave band of 400 nm-700 nm, so that interference can be carried out on a light source in a copying process, the color of the anti-counterfeiting element can be judged by copying equipment, and the aim of preventing copying is fulfilled. For example, the appearance color of the anti-counterfeiting area is A, and the appearance color of the anti-counterfeiting copy after the copying processing is B different from A. In this case, a color deviation of the security copy compared to the security area is easily observed.
Note that the copying apparatus in the related art includes a color copying machine and the like having copying, printing, and scanning functions. The copying device is similar to eyes, and the copying principle is that an original is scanned by a copying light source, the image-text and the color on the original are restored, and then copying is carried out. And interfere through the light source that replicates among this application to make the colour of replication equipment misjudgement original paper, reach the purpose of preventing duplicating.
It is worth mentioning that the material of the substrate includes one or more of paper, cloth, plastic or metal.
Further, the specified wavelength band is associated with a light source during a copy process, and the copy process includes any one of a copy process and a scan process.
Specifically, the functional layer has higher excitation efficiency, absorption efficiency and emission quantum yield in the range of 400 nm-700 nm, so that effective interference on a light source of the copying equipment can be ensured, the copying equipment can misjudge the color of the anti-counterfeiting area, and the purpose of preventing copying is achieved.
Further, the substrate also comprises a non-anti-counterfeiting area, and the difference between the non-anti-counterfeiting area and the anti-counterfeiting area at least comprises whether a functional layer is arranged. The appearance color of the anti-counterfeiting area is the same as that of the non-anti-counterfeiting area, namely, the visual effect colors of the anti-counterfeiting area and the non-anti-counterfeiting area are the same under sunlight, and at the moment, the appearance color of the whole base material is consistent. The appearance color refers to a visual effect color in sunlight or light similar to a sunlight effect.
Or the appearance color of the anti-counterfeiting area is different from that of the non-anti-counterfeiting area, namely the visual effect colors of the anti-counterfeiting area and the non-anti-counterfeiting area are different under sunlight, and at the moment, the appearance color of the whole base material is inconsistent. The appearance color of the anti-counterfeiting area and the appearance color of the non-anti-counterfeiting area are the same through the copied copy. The appearance color refers to a visual effect color in sunlight, or a visual effect color of light in sunlight or similar to a sunlight effect.
The anti-counterfeiting area of the base material is copied to obtain an anti-counterfeiting copy, the non-anti-counterfeiting area of the base material is copied to obtain a non-anti-counterfeiting copy, the anti-counterfeiting element is copied to obtain a copy, and the copy comprises the anti-counterfeiting copy and the non-anti-counterfeiting copy. The appearance color of the anti-counterfeiting copy is different from that of the anti-counterfeiting area, and the appearance color of the non-anti-counterfeiting copy is the same as that of the non-anti-counterfeiting area, namely after the copying treatment, the appearance color of the anti-counterfeiting area is changed, but the appearance color of the non-anti-counterfeiting area is not changed.
For example, the appearance colors of the anti-counterfeiting area and the non-anti-counterfeiting area are both a, that is, the appearance color of the entire substrate is a, the appearance color of the anti-counterfeiting copy is B, the appearance color of the non-anti-counterfeiting copy is a, the appearance color of the entire copy is a + B, at this time, the appearance colors of the copy and the anti-counterfeiting element are inconsistent, that is, the anti-counterfeiting element plays a role in anti-counterfeiting, and a user can quickly find that the copy has a color problem.
For example, the color of the anti-counterfeiting area is a, the appearance color of the non-anti-counterfeiting area is B, that is, the color of the original is a + B; the color of the anti-counterfeiting copy is B, the color of the non-anti-counterfeiting copy is B, and the color of the copy is B. At this time, the appearance colors of the copy and the security element are not consistent, that is, the security element plays a role of copy prevention, and a user can quickly find that the copy has a color problem.
It should be noted that, the number of the anti-counterfeiting areas is one, and the anti-counterfeiting areas include anti-counterfeiting information which can increase the counterfeiting difficulty.
Certainly, the quantity in anti-fake district also can be a plurality of, and a plurality of anti-fake districts constitute anti-fake information jointly, and the anti-fake district that the quantity is more arranges and forms anti-fake information, can increase the counterfeit degree of difficulty in the duplication process, and a plurality of anti-fake districts all can demonstrate the change of outward appearance colour simultaneously, and the colour sudden change of large tracts of land can make the user easily discover the colour problem of anti-fake copy more, not only is fit for normal crowd, also is fit for the relatively poor crowd of eyesight.
Further, the appearance colors of the multiple anti-counterfeiting copies obtained by copying the multiple anti-counterfeiting areas can be completely the same or not completely the same. When the appearance colors of the multiple anti-counterfeiting copies are identical, the surface of the copies can present two appearance colors, one is the appearance color of the non-anti-counterfeiting copy, and the other is the appearance color of the anti-counterfeiting copy. When the appearance colors of the anti-counterfeiting copies are not completely the same, the surfaces of the copies can present various appearance colors, so that a user can easily and quickly identify the authenticity, and the anti-counterfeiting purpose is achieved.
Furthermore, the number of the non-anti-counterfeiting areas is at least one, and the at least one non-anti-counterfeiting area and the anti-counterfeiting area are arranged in a staggered mode to form anti-counterfeiting information.
It should be noted that the anti-counterfeiting information includes numbers, letters, characters, bar codes, two-dimensional codes or patterns.
Further, the copy processing further includes: photographing the anti-counterfeiting element, and performing color printing on a photo of the anti-counterfeiting element obtained by photographing; the appearance color of the anti-counterfeiting area is the same as that of the anti-counterfeiting copy obtained by printing; the anti-counterfeiting area emits fluorescence under the excitation of light of 200 nm-550 nm, and the anti-counterfeiting copy obtained by printing has no fluorescence under the excitation of light of 200 nm-550 nm.
Different from copying and scanning modes, natural light or common lamp light is often used as a light source for photographing, and the effect of the natural light or common lamp light is the same as that of visual appearance color under sunlight, so that the appearance color of a copy obtained by photographing is the same as that of an anti-counterfeiting area. After printing, the printed ink and the functional layer on the anti-counterfeiting area are different in material, so that fluorescence cannot be generated under the excitation of light of 200 nm-550 nm, and the aim of preventing copying is fulfilled.
In one possible design, further, the number of absorption peaks is plural.
In one possible design, further, the number of excitation peaks is plural.
In one possible design, further, the number of emission peaks is multiple.
In the design, when the number and/or intensity of any one of the absorption peak, the excitation peak and the emission peak of the functional layer in the specified waveband is increased, the excitation intensity of the functional layer in the specified waveband is high, the emission intensity is high, the quantum yield is high, effective interference can be caused to a light source of the copying equipment, the copying equipment can make misjudgment on the color of the anti-counterfeiting area, and the purpose of preventing copying is achieved.
In one possible design, further, the rare earth includes at least one of: europium, cerium, praseodymium and samarium.
In one possible design, further, the functional layer comprises Sr 2 Si 5 N 8 Eu and/or SrSiN 2 :Eu。
In one possible design, further, the functional layer includes at least one or a combination of the following: functional ink, functional coating, functional paper, functional fiber, functional safety line, functional wide strip and functional label.
In this design, the functional layer may be disposed on the security region of the substrate by printing, bonding, or hot pressing. In particular, the functional layer may be a functional ink, which may be disposed on the substrate using a printing method (e.g., a gravure method). The form of the functional layer also includes various forms such as a functional coating layer provided on the base material by coating, a functional paper provided on the base material by bonding, a functional fiber embedded in the base material by papermaking, a functional security thread, and the like.
According to a second aspect of the present invention there is provided a security document comprising a security element as provided by any of the designs described above.
The security document provided by the invention comprises the anti-counterfeiting element provided by any one of the designs, so that the security document has all the beneficial effects of the anti-counterfeiting element, and is not repeated herein.
In one possible design, the security document is furthermore a banknote, a security document, a ticket, a merchandise identification, a merchandise packaging, a certificate document or a security card.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 shows a schematic excitation spectrum of a functional layer according to an embodiment of the invention;
FIG. 2 shows a schematic view of an emission spectrum of a functional layer in an embodiment in accordance with the invention;
FIG. 3 shows a schematic diagram of an absorption spectrum of a functional layer according to an embodiment of the present invention;
fig. 4 shows a schematic representation of a security element's security area according to a first embodiment of the invention;
fig. 5 shows a schematic representation of a copy of a security element after a copying process according to a first embodiment of the invention;
fig. 6 shows a schematic representation of a security element according to a third embodiment of the invention;
fig. 7 shows a schematic representation of a copy of a security element according to a third embodiment of the invention after a replication process;
fig. 8 shows a schematic representation of a security element according to a fourth embodiment of the invention;
fig. 9 shows a schematic representation of a copy of a security element according to a fourth embodiment of the invention after a replication process.
Wherein, the correspondence between the reference numbers and the component names in fig. 4 to 9 is:
100 a security element, 101 a security area, 102 a non-security area,
200 copies, 201 anti-counterfeit copies, 202 non-anti-counterfeit copies.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention, taken in conjunction with the accompanying drawings and detailed description, is set forth below. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
A security element 100 and a security document provided according to some embodiments of the present invention are described below with reference to fig. 1 to 9.
According to a first aspect of the invention, a security element 100 is provided comprising a substrate and a functional layer, at least one side of the substrate comprising a security area 101 and a non-security area 102. The functional layer is arranged in the anti-counterfeiting area 101 and has at least one absorption peak, at least one excitation peak and at least one emission peak within a wave band of 400 nm-700 nm. The appearance color of the anti-counterfeiting area 101 is different from the appearance color of the anti-counterfeiting copy 201 obtained after the anti-counterfeiting area 101 is copied.
In this embodiment, the security element 100 comprises a substrate and a functional layer, at least one side of the substrate comprising a security area 101. The functional layer is arranged in the anti-counterfeiting area 101 and has at least one absorption peak, at least one excitation peak and at least one emission peak within a wave band of 400 nm-700 nm, so that interference can be performed on a light source in a copying process, the copying equipment can misjudge the color of the anti-counterfeiting element 100, and the purpose of preventing copying is achieved. For example, the appearance color of the anti-counterfeiting area 101 is a, the copy 200 is obtained after the copying process, and the appearance color of the anti-counterfeiting copy 201 in the copy 200 is B different from a. At this point, the color deviation of the security copy 201 from the security area 101 is readily observed.
Note that the copying apparatus in the related art includes a color copying machine and the like having copying, printing, and scanning functions. The copying device is similar to eyes, and the copying principle is that an original is scanned by a copying light source, the image-text and the color on the original are restored, and then copying is carried out. And interfere through the light source that replicates among this application to make the colour of replication equipment misjudgement original paper, reach the purpose of preventing duplicating.
It is worth mentioning that the material of the substrate includes one or more of paper, cloth, plastic or metal.
Further, the substrate further comprises a non-security area 102, and the difference between the non-security area 102 and the security area 101 at least includes whether a functional layer is provided. The appearance color of the anti-counterfeiting area 101 is the same as the appearance color of the non-anti-counterfeiting area 102, that is, the visual effect color of the anti-counterfeiting area 101 is the same as that of the non-anti-counterfeiting area 102 in daylight, and at this time, the appearance color of the whole substrate is the same. The appearance color means an eye-friendly color under sunlight. The sunlight in the present embodiment refers to not only the light in the daytime, that is, the sunlight, but also includes illumination light similar to the sunlight.
The anti-counterfeiting area 101 of the base material is subjected to copying treatment to obtain an anti-counterfeiting copy 201. The non-security region 102 of the substrate is replicated to produce a non-security copy 202. The security element 100 is subjected to a replication process to obtain a replica. The replica 200 includes a counterfeit resistant copy 201 and a non-counterfeit resistant copy 202. The appearance color of the anti-counterfeiting copy 201 is different from that of the anti-counterfeiting area 101, and the appearance color of the non-anti-counterfeiting copy 202 is the same as that of the non-anti-counterfeiting area 102, that is, after the copying process, the appearance color of the anti-counterfeiting area 101 is changed, but the appearance color of the non-anti-counterfeiting area 102 is not changed.
For example, the appearance colors of the security area 101 and the non-security area 102 are both a, that is, the appearance color of the entire security element 100 is a, and the copy 200 is obtained after the security element 100 is copied. The appearance color of the counterfeit-resistant copy 201 in the copy 200 is B. The appearance color of non-security copy 202 is a. The appearance color of the whole copy 200 is a + B, and at this time, the copy 200 is inconsistent with the appearance color of the security element 100, i.e. the security element 100 serves the purpose of copy protection, and it is easy for a user to find that the copy 200 has a color problem.
In other embodiments, the security area 101 has a different appearance color than the non-security area 102. That is, in sunlight, the security area 101 and the non-security area 102 have different colors of visual effect. For example, the color of the security region 101 is a, and the appearance color of the non-security region 102 is B. In this case, the appearance color of the entire substrate was not uniform, and was a + B, that is, two colors were present. The copy 200 is obtained by copying or scanning. The appearance color of the counterfeit-resistant copy 201 on the copy 200 changes from a to B. The appearance color of the non-counterfeit copy 202 is still B. The apparent color on the substrate location of the replica 200 is consistent and different from the previous one, thereby making it easy for the user to find out the difference between the replica 200 and the security element 100 for the purpose of security.
It should be noted that the number of the anti-counterfeiting areas 101 is one, and the anti-counterfeiting areas 101 include anti-counterfeiting information, which can increase the difficulty of counterfeiting.
Certainly, the quantity of anti-fake district 101 also can be a plurality of, and a plurality of anti-fake districts 101 constitute anti-fake information jointly, and the anti-fake district 101 that the quantity is more arranges and forms anti-fake information, can increase the counterfeit degree of difficulty in the duplication process, and a plurality of anti-fake districts 101 all can demonstrate the change of outward appearance look simultaneously, and the colour sudden change of large tracts of land can make the user more easily discover the colour problem of anti-fake copy 201, not only is fit for normal crowd, also is fit for the crowd that eyesight is relatively poor.
Further, the appearance colors of the multiple anti-counterfeiting copies 201 obtained by copying the multiple anti-counterfeiting areas 101 may be completely the same or may not be completely the same. When the appearance colors of multiple counterfeit-resistant copies 201 are identical, the surface of the copy 200 will exhibit two appearance colors, one of the appearance colors of the non-counterfeit-resistant copies 202 and the other of the appearance colors of the counterfeit-resistant copies 201. When the appearance colors of the anti-counterfeit copies 201 are not completely the same, the surface of the copy 200 will present various appearance colors, which are different in color and shade, so that the user can easily and quickly identify the authenticity of the copy, thereby achieving the anti-counterfeit purpose.
Furthermore, the number of the non-anti-counterfeiting areas 102 is at least one, and the at least one non-anti-counterfeiting area 102 and the anti-counterfeiting area 101 are arranged in a staggered manner to form anti-counterfeiting information.
It should be noted that the anti-counterfeiting information includes numbers, letters, characters, bar codes, two-dimensional codes or patterns.
Further, the functional layer comprises a rare earth doped silicide of nitrogen. The material of the functional layer comprises a fluorescent material. Wherein the rare earth comprises scandium, yttrium, lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium and lutetium.
Further, the number of absorption peaks is plural.
Further, the number of excitation peaks is plural.
Further, the number of emission peaks is plural.
In this embodiment, when the intensity and/or number of any one of the absorption peak, the excitation peak, and the emission peak of the functional layer in the designated wavelength band is increased, the excitation intensity of the functional layer in the designated wavelength band is high, the emission intensity is high, the quantum yield is high, and the functional layer can effectively interfere with the light source of the copy device, so that the copy device can misjudge the color of the anti-counterfeiting region 101, and the purpose of preventing copying is achieved.
Further, the rare earth includes at least one of: europium, cerium, praseodymium and samarium.
Further, the functional layer comprises Sr 2 Si 5 N 8 Eu and/or SrSiN 2 :Eu。
In addition, Sr is mentioned 2 Si 5 N 8 The preparation process of the Eu material comprises the following steps:
raw materials: SrCO 3 ，Si 3 N 4 ，Eu 2 O 3 The raw materials are all commercial products.
The synthesis steps are as follows: solid phase synthesis method.
Step 1): accurately weighing various raw materials, SrCO 3 :Si 3 N 4 :Eu 2 O 3 2:1.67:0.02 (molar ratio), ground in a mill for 1 hour, and then placed in a BN crucible (boron nitride crucible);
step 2): placing the crucible in a high-temperature muffle furnace, calcining for 2 hours at 1500 ℃ in a nitrogen atmosphere, naturally cooling, taking out, placing the sample in a grinder, continuously grinding for 1 hour, and placing the sample in a BN crucible again;
step 3): and (2) placing the BN crucible in a high-temperature muffle furnace, calcining for 2 hours at 1800 ℃ in a nitrogen atmosphere, naturally cooling, taking out, grinding and crushing to obtain a powdery functional material, wherein the appearance of the powdery functional material is orange red.
As shown in FIG. 1, FIG. 1 shows Sr 2 Si 5 N 8 Excitation spectrum of Eu material. As shown in FIG. 2, FIG. 2 shows Sr 2 Si 5 N 8 Emission spectrum of Eu material. As shown in FIG. 3, FIG. 3 shows Sr 2 Si 5 N 8 The absorption spectrum of the Eu material. As can be seen from FIGS. 1 to 3, Sr 2 Si 5 N 8 Eu materials have corresponding characteristics in specified wave bandsCan be used to achieve interference with a replica light source.
The SrSiN 2 The preparation process of the Eu material comprises the following steps:
raw materials: SrCO 3 ，Si 3 N 4 ，Eu 2 O 3 The raw materials are all commercial products.
The synthesis steps are as follows: solid phase synthesis method.
Step 1): accurately weighing various raw materials, SrCO 3 :Si 3 N 4 :Eu 2 O 3 Grinding the mixture for 1 hour in a grinder and then placing the mixture in a BN crucible, wherein the molar ratio is 1:0.33: 0.02;
step 2): placing the BN crucible in a high-temperature muffle furnace, calcining for 2 hours at 1500 ℃ in a nitrogen atmosphere, naturally cooling, taking out, placing the sample in a grinder, continuously grinding for 1 hour, and placing the sample in the BN crucible again;
and step 3): and (2) placing the BN crucible in a high-temperature muffle furnace, calcining for 2 hours at 1800 ℃ in a nitrogen atmosphere, naturally cooling, taking out, grinding and crushing to obtain a powdery functional material with red appearance.
Further, the functional layer comprises at least one of: functional ink, functional coating, functional paper, functional fiber, functional safety line, functional wide strip and functional label.
In this embodiment, the functional layer may be printed, adhered or thermally pressed on the security region 101 of the substrate. Specifically, the functional layer may be a functional ink, and the functional ink may be disposed on the substrate by a printing method (e.g., a gravure method). The functional layer forms also include various forms such as a functional coating layer provided on the base material by coating, a functional paper provided on the base material by adhesion, a functional fiber, a functional security thread, and the like.
The preparation of the security element 100 includes several embodiments:
in a first embodiment, the substrate comprises a security region 101, and the functional layer disposed on the security region 101 comprises Sr 2 Si 5 N 8 Eu material, and is disposed on the substrate by way of functional ink, the preparation process of the security element 100 is as follows:
raw materials: functional material Sr 2 Si 5 N 8 Eu, commercially available colorless base ink, commercially available silica powder, commercially available high-boiling kerosene. The color laser copying and scanning all-in-one machine model is as follows: HP Color Laser Jet Pro MFP M377 dw.
Step 1: weighing out the functional material Sr 2 Si 5 N 8 Eu, silicon dioxide powder, high boiling point kerosene and colorless base ink are uniformly mixed to prepare the printing ink, wherein the functional material Sr 2 Si 5 N 8 Eu accounts for 25% (mass ratio), silicon dioxide powder accounts for 5% (mass ratio), high boiling point kerosene 3% (mass ratio), colorless base ink 67% (mass ratio);
and 2, step: and (3) taking a proper amount of the ink obtained in the step (1), printing the ink on a substrate (such as paper) and naturally drying to prepare the anti-counterfeiting element 100.
And step 3: as shown in fig. 4, the security element 100 is orange-red under natural light, and as shown in fig. 5, the copy (security copy 201) after copying by a color copier is pale yellow in color.
In fig. 4, orange-red is indicated by oblique lines. In fig. 5, white or colorless indicates pale yellow.
In a second embodiment, the substrate comprises a security area 101, and the functional layer disposed on the security area 101 comprises SrSiN 2 Eu material, and is disposed on the substrate by way of functional ink, the preparation process of the security element 100 is as follows:
raw materials: functional material SrSiN 2 Eu, commercially available colorless base ink, commercially available silica powder, commercially available high boiling point kerosene. The color laser copying and scanning all-in-one machine model is as follows: HP Color Laser Jet Pro MFP M377 dw.
Step 1): weighing functional material SrSiN 2 Eu, silicon dioxide powder, high-boiling point kerosene and colorless base ink are uniformly mixed to form the ink, wherein the proportion of the functional material is 25 percent (mass ratio), the proportion of the silicon dioxide powder is 5 percent (mass ratio), the proportion of the high-boiling point kerosene is 3 percent (mass ratio), and the proportion of the colorless base ink is 67 percent (mass ratio);
step 2): taking a proper amount of the ink obtained in the step 1), printing the ink on a substrate (paper) and naturally drying to prepare the anti-counterfeiting element 100.
And step 3): the security element 100 is orange-red under natural light, and the color of a copy copied by a color copier is light yellow.
In a third embodiment, the substrate comprises a security region 101 and a non-security region 102, and the functional layer disposed on the security region 101 comprises Sr 2 Si 5 N 8 Eu material, and is disposed on the substrate by way of functional ink, the preparation process of the security element 100 is as follows:
raw materials: functional material Sr 2 Si 5 N 8 Eu, commercially available colorless base ink, commercially available orange base ink, commercially available silica flour, commercially available high boiling point kerosene. The color laser copying and scanning all-in-one machine model is as follows: HP Color Laser Jet Pro MFP M377 dw.
Step 1): weighing out the functional material Sr 2 Si 5 N 8 Eu, silicon dioxide powder, high boiling point kerosene and colorless base ink are uniformly mixed to form the ink, wherein the proportion of the functional material is 25 percent (mass ratio), the proportion of the silicon dioxide powder is 5 percent (mass ratio), the proportion of the high boiling point kerosene is 3 percent (mass ratio), and the proportion of the colorless base ink is 67 percent (mass ratio);
step 2): taking a proper amount of the ink obtained in the step 1) and a proper amount of commercially available orange base ink, printing the ink on an anti-counterfeiting area 101 of a substrate, printing the commercially available orange base ink on a non-anti-counterfeiting area 102 of the substrate, and naturally drying the printed ink to prepare the anti-counterfeiting element 100, wherein the anti-counterfeiting element 100 is uniform in appearance color under natural light and is orange-red as shown in fig. 6.
Step 3): as shown in fig. 7, the external color of the copy 200 obtained by copying with the color copier is half light yellow and half orange red, wherein the light yellow area is the anti-counterfeit copy 201, and the orange red area is the non-anti-counterfeit copy.
In fig. 6 and 7, the orange-red color is indicated by oblique lines. In fig. 7, a light yellow color is indicated by a dotted horizontal line pattern.
In a fourth embodiment, the substrate includes a security region 101 and a non-security region 102, the functionality being disposed on the security region 101The layer comprises Sr 2 Si 5 N 8 Eu material, and is disposed on the substrate by way of functional ink, the preparation process of the security element 100 is as follows:
raw materials: functional material Sr 2 Si 5 N 8 Eu, commercially available colorless base ink, commercially available yellow base ink, commercially available silica powder, commercially available high boiling point kerosene. The color laser copying and scanning all-in-one machine model is as follows: HP Color Laser Jet Pro MFP M377 dw.
Step 1): weighing the functional material Sr 2 Si 5 N 8 Eu, silicon dioxide powder, high boiling point kerosene and colorless base ink are uniformly mixed to form the ink, wherein the proportion of the functional material is 25 percent (mass ratio), the proportion of the silicon dioxide powder is 5 percent (mass ratio), the proportion of the high boiling point kerosene is 3 percent (mass ratio), and the proportion of the colorless base ink is 67 percent (mass ratio);
step 2): taking a proper amount of the ink obtained in the step 1) and a proper amount of commercially available yellow base ink, printing the ink on a security area 101 of a substrate, printing the commercially available yellow base ink on a non-security area 102 of the substrate, and naturally drying the printed ink to prepare the security element 100, wherein the security element 100 is a combination of orange and yellow under natural light, wherein the orange part is the security area 101, and the yellow part is the non-security area 102.
And step 3): as shown in fig. 9, the external color of the copy 200 obtained by copying with the color copier is light yellow, that is, the external colors of the counterfeit-proof copy 201 and the non-counterfeit-proof copy 202 are light yellow.
In fig. 8, orange-red is indicated by oblique lines. In fig. 8 and 9, a light yellow color is shown in a dotted pattern.
Note that the copying process is not limited to copying, scanning, and the like. The copying process may be performed by color printing after photographing. However, the mode of color printing after photographing is greatly different from the copying mode of copying and scanning, and the light source used for photographing is generally sunlight or a daily lighting light source equivalent to sunlight. Under sunlight or a daily illumination light source, the functional layer does not interfere with the light source, and the color of the anti-counterfeiting element 100 cannot be misjudged. After taking the picture, the picture also needs to be printed out to obtain a copy. The appearance of the replica 200 is color-matched to the appearance of the security element 100 itself, since it is not disturbed. However, the anti-counterfeiting area 101 of the anti-counterfeiting element 100 can excite fluorescence under the irradiation of light of 200nm to 550nm, and the anti-counterfeiting copy 201 on the copy 200 is not made of functional materials, so that the fluorescence can not be emitted under the irradiation of light of 200nm to 550nm, thereby realizing the anti-counterfeiting.
In a fifth embodiment, the substrate comprises a security region 101 and a non-security region 102, and the functional layer disposed on the security region 101 comprises Sr 2 Si 5 N 8 Eu material, and is disposed on the substrate by way of functional ink, the preparation process of the security element 100 is as follows:
raw materials: functional material Sr 2 Si 5 N 8 Eu, commercially available colorless base ink, commercially available orange base ink, commercially available silica flour, commercially available high boiling point kerosene. The color laser copying and scanning all-in-one machine model is as follows: HP Color Laser Jet Pro MFP M377 dw.
Step 1): weighing the functional material Sr 2 Si 5 N 8 Eu, silicon dioxide powder, high-boiling point kerosene and colorless base ink are uniformly mixed to form the ink, wherein the proportion of the functional material is 25 percent (mass ratio), the proportion of the silicon dioxide powder is 5 percent (mass ratio), the proportion of the high-boiling point kerosene is 3 percent (mass ratio), and the proportion of the colorless base ink is 67 percent (mass ratio);
step 2): taking a proper amount of the ink obtained in the step 1) and a proper amount of commercially available orange base ink, printing the ink on an anti-counterfeiting area 101 of a substrate, printing the commercially available yellow base ink on a non-anti-counterfeiting area 102 of the substrate, and naturally drying the printed ink to prepare the anti-counterfeiting element 100, wherein the anti-counterfeiting element 100 is orange in appearance color under natural light, and the anti-counterfeiting element 100 emits red fluorescence under the excitation of blue light of 450nm as shown in fig. 6.
And step 3): as shown in fig. 7, after photographing by the camera, the appearance color of the copy 200 obtained after printing the photographed document by the color copier is orange, and the copy 200 is non-fluorescent under irradiation of blue light of 450 nm.
As can be seen from the fifth embodiment, the forgery prevention element 100 cannot be forged even if color printing is performed after photographing with a camera.
According to a second aspect of the present invention, there is provided a security document comprising a security element 100 as provided in any one of the embodiments described above.
The security document provided by the present invention includes the security element 100 provided in any of the above embodiments, and therefore, has all the advantages of the security element 100, and will not be described herein again.
Further, the security document is a banknote, a security, a bill, a commodity identification, a commodity package, a certification document or an anti-counterfeit certificate card.
In the present invention, the term "plurality" means two or more unless explicitly defined otherwise. The terms "mounted," "connected," "fixed," and the like are used broadly and should be construed to include, for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; "connected" may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A security element (100) characterized in that it comprises:
a substrate, at least one side of the substrate comprising a security area (101) and a non-security area (102);
the functional layer is arranged in the anti-counterfeiting area (101), comprises a functional material, has at least one absorption peak, at least one excitation peak and at least one emission peak in a 400-700 nm wave band, and comprises rare earth doped nitrogen silicide;
the appearance color of the anti-counterfeiting copy (201) obtained after the anti-counterfeiting area (101) is copied is different from that of the anti-counterfeiting area (101), and the appearance color of the non-anti-counterfeiting copy (202) obtained after the non-anti-counterfeiting area (102) is copied is the same as that of the non-anti-counterfeiting area (102);
the copying process includes any one of a copying process and a scanning process;
the number of the anti-counterfeiting areas (101) is one, and the anti-counterfeiting areas (101) comprise anti-counterfeiting information; or
The number of the anti-counterfeiting areas (101) is multiple, the anti-counterfeiting areas (101) jointly form anti-counterfeiting information, and the appearance colors of a plurality of anti-counterfeiting copies (201) obtained by copying the anti-counterfeiting areas (101) are not identical;
the number of the non-anti-counterfeiting areas (102) is at least one, and the at least one non-anti-counterfeiting area (102) and the anti-counterfeiting area (101) are arranged in a staggered mode to form anti-counterfeiting information;
the anti-counterfeiting information comprises numbers, letters, characters, bar codes, two-dimensional codes or patterns;
the base material comprises one or more of paper, cloth, plastic or metal;
the copy process further includes:
photographing the anti-counterfeiting element, and performing color printing on a photo of the anti-counterfeiting element obtained by photographing;
the appearance color of the anti-counterfeiting area is the same as that of the anti-counterfeiting copy obtained by printing;
the anti-counterfeiting area emits fluorescence under the excitation of light of 200-550 nm, and the printed anti-counterfeiting copy has no fluorescence under the excitation of light of 200-550 nm.
2. Security element (100) according to claim 1,
the appearance colors of the anti-counterfeiting area and the non-anti-counterfeiting area are the same, and after the copying treatment, the appearance color of the anti-counterfeiting copy is different from that of the non-anti-counterfeiting copy.
3. Security element (100) according to claim 1,
the anti-counterfeiting area and the non-anti-counterfeiting area are different in appearance color, and after the anti-counterfeiting area and the non-anti-counterfeiting area are copied, the appearance color of the anti-counterfeiting copy is the same as that of the non-anti-counterfeiting copy.
4. Security element (100) according to one of claims 1 to 3,
the number of the absorption peaks is multiple; and/or
The number of the excitation peaks is multiple; and/or
The number of the emission peaks is plural.
5. The security element (100) according to any one of claims 1 to 3, wherein the rare earth comprises at least one of: europium, cerium, praseodymium and samarium.
6. Security element (100) according to one of claims 1 to 3,
the functional layer comprises Sr 2 Si 5 N 8 Eu and/or SrSiN 2 :Eu。
7. Security element (100) according to one of claims 1 to 3,
the functional layer comprises at least one or a combination of the following: functional ink, functional coating, functional paper, functional fiber, functional safety line, functional wide strip and functional label.
8. A security document, characterized in that it comprises a security element (100) according to any one of claims 1 to 7.
9. A security document according to claim 8,
the security document is a banknote, a security, a bill, a commodity identification, a commodity package, a certificate document or an anti-counterfeiting certificate card.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110826063.2A CN113580806B (en) | 2021-07-21 | 2021-07-21 | Security element and security document |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110826063.2A CN113580806B (en) | 2021-07-21 | 2021-07-21 | Security element and security document |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113580806A CN113580806A (en) | 2021-11-02 |
| CN113580806B true CN113580806B (en) | 2022-08-19 |
Family
ID=78248820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110826063.2A Active CN113580806B (en) | 2021-07-21 | 2021-07-21 | Security element and security document |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113580806B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE59304894D1 (en) * | 1992-12-03 | 1997-02-06 | Ciba Geigy Ag | Process for the production of forgery-proof colored printed matter |
| JP3529079B2 (en) * | 1997-03-26 | 2004-05-24 | 独立行政法人 国立印刷局 | Copy-prevention printed matter |
| JP4120965B2 (en) * | 2002-05-31 | 2008-07-16 | 共同印刷株式会社 | Anti-counterfeit ink and anti-counterfeit printed matter |
| JP2015048412A (en) * | 2013-09-02 | 2015-03-16 | 独立行政法人 国立印刷局 | Ink having function of preventing falsification and copying and forgery prevention print using the same |
| CN105500955A (en) * | 2015-12-05 | 2016-04-20 | 深圳市天兴诚科技有限公司 | Anti-counterfeiting material and preparation method thereof |
| CN112457718A (en) * | 2020-10-29 | 2021-03-09 | 兰州大学 | Multicolor fluorescent anti-counterfeiting ink and preparation method and application thereof |
| CN113061432B (en) * | 2021-04-06 | 2022-06-24 | 中国地质大学（北京） | Preparation method and application of high-stability multifunctional whitlockite type fluorescent powder |
-
2021
- 2021-07-21 CN CN202110826063.2A patent/CN113580806B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN113580806A (en) | 2021-11-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11548310B2 (en) | Authenticating identification and security documents and other objects | |
| EP2373485B1 (en) | Fluorescence notch coding and authentication | |
| RU2264296C2 (en) | Half-tint image, produced by printing method | |
| JP2009046672A (en) | Luminescent marking material | |
| US20080134920A1 (en) | Security Element and Printing Method | |
| AU2013346725B2 (en) | Security element for a document of value and/or a security document | |
| US7429062B2 (en) | Anti-counterfeiting see-through moire security feature using frequency-varying patterns | |
| JP4418881B2 (en) | Anti-counterfeit printed matter | |
| KR20140142984A (en) | The method for forming a security element and security element | |
| US20210260909A1 (en) | Security devices and methods of authentication thereof | |
| JP5315580B2 (en) | Latent image printed matter | |
| US10780728B2 (en) | Secure article comprising a combined image and/or a revelation screen | |
| JP5360725B2 (en) | Latent image printed matter | |
| RU2527791C1 (en) | Multilayer protected composition (versions) and article of such composition | |
| CN113580806B (en) | Security element and security document | |
| US20150302677A1 (en) | Non-periodic tiling document security element | |
| JP4378789B2 (en) | Anti-counterfeit printed matter | |
| KR101253589B1 (en) | Printing paper with anti-forgery features and the manufacturing method thereof | |
| JP2004025464A (en) | Copy-protection paper and security documents using the same | |
| KR101985362B1 (en) | Functional paper | |
| JP3501334B2 (en) | Copy-prevention printed matter and method for producing the same | |
| EP4259450A1 (en) | Security device and method of manufacture thereof | |
| Voinea et al. | SOME METHODS OF FALSIFICATION AND COUNTERFEITING OF BANKNOTES/UNELE METODE DE FALSIFICARE SI CONTRAFACERE A BANCNOTELOR | |
| Phillips | Combining nanocharacter printing, digital watermarking, and UV-coded taggents for optimal machine-readable security | |
| Uematsu | Combining overt and covert anti-counterfeiting technologies for securities |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 100070 8th floor, building 2, No.5 Zhonghe Road, Fengtai Science City, Fengtai District, Beijing Applicant after: China Banknote Printing Technology Research Institute Co.,Ltd. Applicant after: China Banknote Printing and Minting Group Co.,Ltd. Address before: 100070 8th floor, building 2, No.5 Zhonghe Road, Fengtai Science City, Fengtai District, Beijing Applicant before: China Banknote Printing Technology Research Institute Co.,Ltd. Applicant before: CHINA BANKNOTE PRINTING AND MINTING Corp. |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |