CN113147215B

CN113147215B - Transparent anti-counterfeiting element, manufacturing method and detection method thereof, detection equipment thereof and security article

Info

Publication number: CN113147215B
Application number: CN202110564472.XA
Authority: CN
Inventors: 陈韦; 刘萃; 王斌; 董亚鲁; 叶蕾; 古克
Original assignee: China Banknote Printing Technology Research Institute Co ltd; China Banknote Printing and Minting Group Co Ltd
Current assignee: China Banknote Printing Technology Research Institute Co ltd; China Banknote Printing and Minting Group Co Ltd
Priority date: 2021-05-24
Filing date: 2021-05-24
Publication date: 2022-11-29
Anticipated expiration: 2041-05-24
Also published as: CN113147215A

Abstract

The disclosure relates to a transparent anti-counterfeiting element, a manufacturing method, a detection method, detection equipment and a safety article thereof. The transparent security element comprises: a transparent flexible substrate layer, at least one transparent colloidal layer and at least one light emitting layer, wherein: the transparent colloidal layer is arranged above the transparent flexible substrate layer; the transparent colloid layer is provided with a patterned fine grid concave-convex structure; the luminous layer is filled in the groove of the transparent colloid layer to form a patterned luminous network. The transparent anti-counterfeiting element has good transmissivity under natural light, and fine patterns can be observed by using special equipment, so that the counterfeiting threshold is improved, and the user experience is improved.

Description

Transparent anti-counterfeiting element, manufacturing method and detection method thereof, detection equipment thereof and security article

Technical Field

The disclosure relates to the field of anti-counterfeiting technology, and in particular relates to a transparent anti-counterfeiting element, a manufacturing method and a detection method thereof, a device and a safe article.

Background

In the related technology, various high-safety or high-value-added printed matters such as bank notes, passports, cards and the like widely adopt the luminescent anti-counterfeiting technologies such as fluorescence, phosphorescence and the like. The luminescent anti-counterfeiting technology of the related technology is mainly realized in a traditional printing, coating or ink-jet printing mode, and because fluorescent materials or phosphorescent materials mostly have visible appearance colors under visible light, luminescent layers realized by the traditional technology also have visible appearance colors, and cannot achieve good hiding effect. In addition, the finest line width of the conventional printing is in the order of tens of micrometers, and it is difficult to realize a high-precision line of several micrometers. Generally, high-precision lines can be realized by combining coating with photolithography, but the properties of fluorescent materials and phosphorescent materials determine that it is difficult to realize a light-emitting layer by coating.

Disclosure of Invention

In view of at least one of the above technical problems, the present disclosure provides a transparent security element, a method and apparatus for manufacturing and inspecting the same, and a security article, the transparent security element having good transmittance under natural light, and a fine pattern can be observed using a special apparatus.

According to one aspect of the present disclosure, there is provided a transparent security element comprising: transparent flexible substrate layer, at least one transparent colloidal layer and at least one luminescent layer, wherein:

the transparent colloid layer is arranged above the transparent flexible substrate layer;

the transparent colloid layer is provided with a patterned fine grid concave-convex structure;

the luminescent layer is filled in the groove of the transparent colloid layer to form a patterned luminescent network.

In some embodiments of the present disclosure, the transparent security element has a transmittance of greater than 80% in the visible wavelength band, is transparent when viewed with the naked eye, and at least a portion of the luminescent layer is invisible;

under the condition that the transparent anti-counterfeiting element is excited by a light source and/or an electric field, the effectively excited part of the luminous layer presents a patterned luminous network.

In some embodiments of the present disclosure, the security element when excited exhibits a distinct luminescent pattern when viewed by the unaided eye, and at least a portion of the luminescent pattern is not visible by the unactivated eye;

in some embodiments of the present disclosure, the transparent security element comprises not less than 2 transparent colloidal layers and 2 luminescent layers, and exhibits different luminescent patterns when excited differently.

In some embodiments of the present disclosure, the light emitting layer is one or more light emitting networks combined from a plurality of unit grids of the same shape, size, and/or different, wherein:

the cell grid profile of the light emitting network is a groove of a transparent colloidal layer and is filled with a light emitting layer, the interior of the grid is provided with a convex transparent colloidal layer, and the profile line width is 0.5um-100um.

In some embodiments of the present disclosure, the light emitting network has a cell grid width of 10um to 200um.

In some embodiments of the present disclosure, the transparent colloidal layer has a groove depth of 0.2um to 20um.

In some embodiments of the present disclosure, the unit cells of the light emitting network may be separated or communicated with each other.

In some embodiments of the present disclosure, the cell lattice shape may be rectangular, honeycomb, diamond, parallelogram, irregular, or other shapes.

In some embodiments of the present disclosure, the light-emitting layer contains at least one light-emitting material, which may be one or more of a mixture of a photoluminescent material, an electroluminescent material, a pressure-sensitive luminescent material, a gas-sensitive luminescent material, and a triboluminescent material.

In some embodiments of the present disclosure, the light-emitting layer has an emission wavelength band of 400nm to 1000nm and a light-emission luminance of not less than 100 nits.

In some embodiments of the present disclosure, in the case that the material of the light-emitting layer is a photoluminescent material, an excitation light band of the light-emitting layer is located in an ultraviolet band, a blue light band, or an infrared band.

In some embodiments of the present disclosure, in the case where the material of the light emitting layer is a photoluminescent material, the photoluminescent material is an inorganic luminescent material or an organic luminescent material.

In some embodiments of the present disclosure, the security element further comprises a light-altering layer, wherein: the optically variable layer is positioned between the transparent flexible substrate layer and the transparent colloidal layer or below the transparent flexible substrate layer.

In some embodiments of the present disclosure, the optically variable layer is a transparent optically variable layer formed of an optically variable coating, a liquid crystal optically variable film, or a multilayer coextruded film, and the color of the optically variable layer changes from one color to another color with transmissive or reflective viewing and changing the viewing angle.

In some embodiments of the present disclosure, the ink layer is located intermediate the transparent flexible substrate layer and the transparent colloidal layer, or below the transparent flexible substrate layer.

In some embodiments of the present disclosure, the ink layer is a partially printed ink layer, and the printed pattern of the ink layer is related or unrelated to the pattern of the light emitting network.

In some embodiments of the present disclosure, the transparent flexible substrate layer is film-formed by at least one of coating, stretching, blowing, or casting.

In some embodiments of the present disclosure, the transparent colloidal layer is generated by at least one of coating, offset printing, silk-screening, and gravure.

In some embodiments of the present disclosure, the patterned fine grid relief structure is generated on the transparent colloidal layer by at least one of nanoimprint, laser lithography, electron beam lithography, and ion beam lithography.

In some embodiments of the present disclosure, the light emitting layer is produced by a doctor blade process.

In some embodiments of the present disclosure, the optically variable layer is formed by at least one of plating, coating, co-extrusion, and the like.

In some embodiments of the present disclosure, the ink layer is produced by at least one process of silk-screen printing, offset printing, gravure printing, embossing, inkjet printing, and the like.

According to another aspect of the present disclosure, there is provided a security article comprising a transparent security element as described in any one of the embodiments above.

In some embodiments of the present disclosure, the security article further comprises at least one of a transparent window, a sticker, a label, a security thread, and a printed image, wherein the transparent security element is applied over the transparent window, the sticker, the label, the security thread, and the printed image of the security article.

According to another aspect of the present disclosure, there is provided a method of manufacturing a transparent security element, comprising:

generating a transparent flexible substrate layer;

performing at least one of the following steps: generating a transparent colloid layer above the transparent flexible substrate layer; forming a patterned fine grid concave-convex structure on the transparent colloid layer; and filling the grooves of the transparent colloid layer to form a patterned light-emitting network so as to manufacture the transparent anti-counterfeiting element according to any one of the above embodiments.

In some embodiments of the present disclosure, the method of manufacturing a transparent security element further comprises: creating a light-altering layer between the transparent flexible substrate layer and the transparent colloidal layer or below the transparent flexible substrate layer to produce a transparent security element as described in any of the embodiments above.

In some embodiments of the present disclosure, the method of manufacturing a transparent security element further comprises: and generating an ink layer between the transparent flexible substrate layer and the transparent colloid layer or below the transparent flexible substrate layer to manufacture the transparent anti-counterfeiting element according to any one of the embodiments.

In some embodiments of the present disclosure, the generating a transparent flexible substrate layer comprises: the transparent flexible substrate layer is produced by at least one of coating, stretching, blow molding and casting.

In some embodiments of the present disclosure, the generating a transparent colloidal layer on a transparent flexible substrate layer comprises: and generating a transparent colloidal layer on the transparent flexible substrate layer through at least one process of coating, offset printing, silk-screen printing and gravure printing.

In some embodiments of the present disclosure, the forming of the patterned fine grid relief structure on the transparent colloidal layer comprises: and generating a patterned fine grid concave-convex structure on the transparent colloid layer by at least one process of nano imprinting, laser etching, electron beam etching and ion beam etching.

In some embodiments of the present disclosure, the filling of the patterned light emitting network in the groove of the transparent glue layer comprises: the patterned luminescent network was generated by a knife coating process.

In some embodiments of the present disclosure, the generating the optically variable layer between or below the transparent flexible substrate layer and the transparent colloidal layer comprises: the optically variable layer is generated by at least one process of plating, coating, co-extrusion and the like.

In some embodiments of the disclosure, the generating an ink layer between or below the transparent flexible substrate layer and the transparent colloidal layer comprises: the ink layer is generated by at least one process of silk screen printing, offset printing, gravure printing, letterpress printing, ink-jet printing and the like.

According to another aspect of the present disclosure, there is provided a transparent security element manufacturing apparatus including:

a substrate generating device for generating a transparent flexible substrate layer;

the transparent colloidal layer generating device is used for generating a transparent colloidal layer above the transparent flexible substrate layer;

a relief structure generating means for forming a patterned fine-grid relief structure on the transparent colloidal layer;

filling means for filling the grooves of the transparent glue layer with a patterned light-emitting network to manufacture the transparent security element according to any of the above embodiments.

In some embodiments of the disclosure, the transparent security element manufacturing apparatus further comprises:

the coating device is used for generating an optically variable coating between the transparent flexible substrate layer and the transparent colloid layer or below the transparent flexible substrate layer;

a coating device for generating a light-variable layer between the transparent flexible substrate layer and the transparent colloidal layer or below the transparent flexible substrate layer;

the co-extrusion device is used for generating an optically variable co-extrusion film between the transparent flexible substrate layer and the transparent colloid layer or below the transparent flexible substrate layer;

printing means for creating an ink layer between the transparent flexible substrate layer and the transparent colloidal layer or below the transparent flexible substrate layer to produce the transparent security element according to any of the above embodiments.

According to another aspect of the present disclosure, there is provided a transparent security element detection apparatus comprising:

at least one excitation source for exciting the transparent security element according to any of the above embodiments, so that the transparent security element emits light to the outside.

In some embodiments of the present disclosure, the transparent security element detection apparatus further comprises:

the sensor is used for observing the pictures and texts presented by the transparent anti-counterfeiting element under the detection equipment of the transparent anti-counterfeiting element;

and the control device is used for determining that the transparent anti-counterfeiting element is qualified under the conditions that the transparent anti-counterfeiting element is transparent under visual observation and presents fine luminous images and texts under excitation of an excitation source.

According to another aspect of the present disclosure, there is provided a method for detecting a transparent security element, including:

observing the transparent security element as described in any of the above embodiments with the naked eye;

detecting the transparent security element according to any one of the above embodiments by using a transparent security element detection device;

and if the transparent anti-counterfeiting element is transparent under the observation of naked eyes and presents fine luminous images and texts under the detection equipment of the transparent anti-counterfeiting element, determining that the transparent anti-counterfeiting element is qualified.

In some embodiments of the disclosure, the presenting a fine light-emitting image under a transparent security element detection device comprises:

under the excitation of an excitation source, observing a luminescent pattern containing a fine grid presented by the transparent anti-counterfeiting element through a sensor;

under the excitation of an excitation source, light rays emitted by the luminous area of the luminous pattern presented by the transparent anti-counterfeiting element can be observed through naked eyes, and the fine grids can not be observed.

In some embodiments of the present disclosure, the method for detecting a transparent security element is characterized by further comprising:

and if the transparent anti-counterfeiting element is transparent under the observation of naked eyes and presents fine luminous pictures and texts under the detection equipment of the transparent anti-counterfeiting element, the observation angle is changed under the condition of transmitting or reflecting light, and the color of the element is changed from one color to another color, the transparent anti-counterfeiting element is determined to be qualified.

In some embodiments of the present disclosure, the method for detecting a transparent security element further includes:

and if the transparent anti-counterfeiting element is transparent under the observation of naked eyes, only the local printing ink pattern can be seen, and fine luminous images and texts are presented under the detection equipment of the transparent anti-counterfeiting element, and the luminous images and texts are related or unrelated to the local printing ink pattern, determining that the transparent anti-counterfeiting element is qualified.

According to another aspect of the present disclosure, there is provided a transparent security element detection system comprising:

a transmission spectrometer for viewing the transparent security element as described in any one of the embodiments above;

the transparent anti-counterfeiting element detection equipment is used for exciting the transparent anti-counterfeiting element according to any one of the embodiments to enable the transparent anti-counterfeiting element to send signals to the outside; acquiring pictures, texts or signals presented by the transparent anti-counterfeiting element after excitation of an excitation source; and determining that the transparent anti-counterfeiting element is qualified under the conditions that the light transmittance of the transparent anti-counterfeiting element is greater than a preset value and the transparent anti-counterfeiting element presents fine luminous pictures and texts or signals under the excitation of an excitation source.

The transparent anti-counterfeiting element has good transmissivity under natural light, and fine patterns can be observed by using special equipment, so that the counterfeiting threshold is improved, and the user experience is improved.

Drawings

In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1a is a schematic view of some embodiments of transparent security elements of the present disclosure.

FIG. 1b is a schematic view of additional embodiments of the transparent security element of the present disclosure.

Fig. 2 is a schematic plan view of a patterned light-emitting network in a transparent security element in some embodiments of the present disclosure.

Fig. 3 is a plan view showing an enlarged effect of the grid relief structure in some embodiments of the present disclosure.

Fig. 4 is a schematic plan view of a patterned light-emitting network in a transparent security element according to other embodiments of the present disclosure.

Fig. 5 is a plan view showing an enlarged effect of the grid relief structure in other embodiments of the present disclosure.

Fig. 6 is a schematic view of some embodiments of the security article of the present disclosure.

Fig. 7 is a schematic diagram of some embodiments of a method for detecting a transparent security element according to the present disclosure.

Fig. 8 and 9 are schematic diagrams illustrating the detection of the transparent security element in the security article of the embodiment of fig. 6 by using the method for detecting the transparent security element of the embodiment of fig. 7.

Fig. 10 is a schematic view of additional embodiments of the security article of the present disclosure.

Fig. 11 and 12 are schematic diagrams of a method of detecting a transparent security element in the security article shown in fig. 10.

Fig. 13 is a schematic view of some embodiments of a transparent security element detection apparatus of the present disclosure.

Fig. 14 is a schematic view of some embodiments of a method of manufacturing a transparent security element of the present disclosure.

Fig. 15 is a schematic view of some embodiments of a transparent security element manufacturing apparatus of the present disclosure.

Fig. 16 is a schematic diagram of some embodiments of a transparent security element detection system of the present disclosure.

Detailed Description

The technical solutions in the embodiments of the present disclosure will be described clearly and completely with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the embodiments described are only some embodiments of the present disclosure, rather than all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.

The relative arrangement of parts and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present disclosure unless specifically stated otherwise.

Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

Fig. 1a is a schematic representation of some embodiments of transparent security elements of the present disclosure. As shown in fig. 1a, the transparent security element of the present disclosure may comprise a transparent flexible substrate layer 10, at least one transparent colloidal layer 20 and at least one luminescent layer 30, wherein:

the transparent colloidal layer 20 is arranged above the transparent flexible substrate layer 10.

The transparent colloidal layer 20 has a patterned fine-grid relief structure.

The light emitting layer 30 is filled in the groove of the transparent colloidal layer 20 to form a patterned light emitting network.

In some embodiments of the present disclosure, the light emitting layer 30 may be a light emitting network comprising a plurality of unit cells, wherein: the line width of the unit grid in the luminous network is 0.5um-100um.

In some embodiments of the present disclosure, the cell grid width of the light emitting network 30 is 10um-200um.

In some embodiments of the present disclosure, the light emitting layer 30 grid has a trench depth of 0.2um to 20um.

In some embodiments of the present disclosure, the material of the light-emitting layer is at least one of a photoluminescent material, an electroluminescent material, a pressure-sensitive luminescent material, a gas-sensitive luminescent material, a triboluminescent material, and the like.

In some embodiments of the present disclosure, the light-emitting layer 30 emits light in a wavelength band of 400nm to 1000nm, preferably 450nm to 700nm.

In some embodiments of the present disclosure, the excitation light band of the light emitting layer 30 is in an ultraviolet band, a blue light band or an infrared band, preferably an ultraviolet band.

In some embodiments of the present disclosure, the transparent security element has a transmittance in the visible band of greater than 80%, preferably greater than 85%.

In some embodiments of the present disclosure, the photoluminescent material may be an inorganic fluorescent material or an organic fluorescent material.

In some embodiments of the present disclosure, the light emitting layer 30 is an organic or inorganic photoluminescent layer, wherein the inorganic fluorescent material may include rare-earth ion luminescent and rare-earth fluorescent materials, such as alkaline-earth metal sulfides (ZnS, caS, etc.), aluminates (SrAl 2O4, caAl2O4, baAl2O4, etc.), etc. as luminescent matrix, and rare-earth lanthanides (Eu, sm, er, nd, etc.) as activator and co-activator. The organic fluorescent material can comprise organic small-molecule fluorescent materials (oxadiazole and derivatives thereof, rhodamine and derivatives thereof, coumarin derivatives and the like), organic high-molecular fluorescent materials (polyphenyl, polythiophene, polyfluorene, polytriphenylamine and derivatives thereof and the like) and organic complex fluorescent materials.

In some embodiments of the present disclosure, the transparent colloidal layer 20 may be a colloidal material with a visible light transmittance of more than 90%, including a thermoplastic high polymer, a photo-curable polymer, a thermosetting polymer, an AB glue polymer, a laser direct writing compound, and the like.

In some embodiments of the present disclosure, the transparent flexible substrate 10 may include a flexible plastic layer such as PI (Polyimide), BOPP (Biaxially oriented polypropylene film), PET (Polyethylene terephthalate), PC (Polycarbonate), or TAC (Triacetyl Cellulose).

In some embodiments of the present disclosure, the transparent flexible substrate layer 10 may be produced by coating, stretching, blowing, or casting a film.

In some embodiments of the present disclosure, the transparent colloidal layer 20 may be generated by at least one of coating, offset printing, silk-screening, or gravure printing.

In some embodiments of the present disclosure, the patterned fine grid relief structure may be generated on the transparent colloidal layer by at least one of nanoimprint, laser etching, electron beam etching, or ion beam etching.

In some embodiments of the present disclosure, the light emitting layer 30 is a patterned light emitting network generated by a doctor-blading process.

FIG. 1b is a schematic view of additional embodiments of the transparent security element of the present disclosure. As shown in fig. 1b, the transparent security element of the present disclosure may comprise a transparent flexible substrate layer 10, an optically variable layer 60, at least one transparent colloidal layer 20 and at least one light emitting layer 30, wherein:

the optically variable layer 60 is arranged above the transparent flexible substrate layer 10.

In some embodiments of the present disclosure, the optically variable layer 60 may be implemented as a liquid crystal optically variable layer.

The transparent colloidal layer 20 is disposed over the optically variable layer 60.

The transparent colloidal layer 20 has a patterned fine-grid relief structure.

In some embodiments of the present disclosure, the light emitting layer 30 may be a light emitting network comprising a plurality of unit cells, wherein: the line width of the cell grid in the light emitting network is 0.5um-100um.

In some embodiments of the present disclosure, the material of the light emitting layer is at least one of a photoluminescent material, an electroluminescent material, a pressure-sensitive light emitting material, a gas-sensitive light emitting material, a triboluminescent material, and the like.

In some embodiments of the present disclosure, the light-emitting layer 30 has an emission wavelength band in the range of 400nm to 1000nm, preferably 450nm to 700nm.

In some embodiments of the present disclosure, the excitation light band of the light-emitting layer 30 is located in an ultraviolet band, a blue light band or an infrared band, preferably an ultraviolet band.

In some embodiments of the present disclosure, the light emitting layer 30 is an organic or inorganic photo-luminescent layer, wherein the inorganic fluorescent material may include rare earth ion luminescent and rare earth fluorescent materials, such as alkaline earth metal sulfides (ZnS, caS, etc.), aluminates (SrAl 2O4, caAl2O4, baAl2O4, etc.), etc. as luminescent matrix, and rare earth lanthanides (Eu, sm, er, nd, etc.) as activator and co-activator. The organic fluorescent material can comprise organic small-molecule fluorescent materials (oxadiazole and derivatives thereof, rhodamine and derivatives thereof, coumarin derivatives and the like), organic high-molecular fluorescent materials (polyphenyl, polythiophene, polyfluorene, polytriphenylamine and derivatives thereof and the like) and organic complex fluorescent materials.

In some embodiments of the present disclosure, the transparent colloidal layer 20 may be a colloidal material with a visible light transmittance of 90% or more, and includes a thermoplastic high molecular polymer, a photo-curable polymer, a thermosetting polymer, an AB glue polymer, a laser direct writing compound, and the like.

In some embodiments of the present disclosure, the transparent flexible substrate 10 may include a flexible plastic layer such as PI (Polyimide), BOPP (Biaxially oriented polypropylene film), PET (Polyethylene terephthalate), PC (Polycarbonate), TAC (Triacetyl Cellulose), and the like.

In some embodiments of the present disclosure, the optically variable layer 60 may be a transparent optically variable layer that changes color from one color to another when viewed in transmitted or reflected light and changing the viewing angle.

In some embodiments of the present disclosure, the optically variable layer 60 may be formed by coating to form a film.

In some embodiments of the present disclosure, the optically variable layer 60 may be formed by at least one of plating, coating, co-extrusion, and the like.

In some embodiments of the present disclosure, the light emitting layer 30 may be a patterned light emitting network generated by a doctor-blading process.

Fig. 2 is a schematic plan view of a patterned light-emitting network in a transparent security element according to some embodiments of the present disclosure. As shown in fig. 2, wherein the patterned light emitting network in the transparent security element of the present disclosure (e.g., the transparent security element in the embodiment of fig. 1a or fig. 1 b) may comprise: the pentagram shape is a fine luminous pattern, and the interior of the pentagram is a finer grid concave-convex structure.

Fig. 3 is a plan view showing an enlarged effect of the grid relief structure in some embodiments of the present disclosure. As shown in fig. 3, the line width of the depressed areas 301 (i.e. the line width d of the cell grid in the light-emitting network) in the grid structure of the transparent security element of the present disclosure (e.g. the transparent security element in the embodiment of fig. 1a or fig. 1 b) is 0.5um to 100um, preferably 5 to 50um; the line width of the raised areas 302 in the grid structure (i.e. the cell grid width of the light emitting network 30) is 10um-200um, preferably 50um-150um.

Fig. 4 is a schematic plan view of a patterned light-emitting network in a transparent security element according to further embodiments of the present disclosure. As shown in fig. 4, wherein the patterned light emitting network in the transparent security element of the present disclosure (e.g., the transparent security element in the embodiment of fig. 1a or fig. 1 b) may comprise: the sun is in the shape of a fine luminous pattern, and the inside of the sun is in a finer grid concave-convex structure.

Fig. 5 is a plan view showing an enlarged effect of the grid relief structure in other embodiments of the present disclosure. As shown in fig. 5, the line width of the depressed areas 301 (i.e. the line width d of the cell grids in the light emitting network) in the grid structure of the transparent security element (e.g. the transparent security element in the embodiment of fig. 1a or 1 b) of the present disclosure is 0.5um to 100um, preferably 5um to 50um; the line width of the raised areas 302 in the grid structure (i.e. the cell grid width of the light emitting network 30) is 10-200 um, preferably 50-150um.

The transparent anti-counterfeiting element provided based on the embodiment of the disclosure is transparent under natural light, and a fine luminous pattern can be observed by using a special detection instrument, so that the counterfeiting threshold is improved, and the user experience is improved.

According to another aspect of the present disclosure, there is provided a security article comprising a transparent security element as described in any one of the embodiments described above (e.g. any one of the embodiments of fig. 1a, 1b, 2-5).

In some embodiments of the present disclosure, the security article may further comprise at least one of a transparent window and a layer of printed ink, wherein the transparent security element is applied over the transparent window or the layer of printed ink of the security article.

In some embodiments of the present disclosure, the security article may be a flexible or rigid product such as a banknote, passport, identification card, or merchandise packaging.

Fig. 6 is a schematic view of some embodiments of the security article of the present disclosure. Fig. 6 can be a schematic side view of a security article incorporating a transparent security element of the present disclosure, such as the transparent security element of any of the embodiments of fig. 1a, 2-3 of the present disclosure. As shown in fig. 6, the transparent security element of the present disclosure may include a transparent flexible substrate layer 10, a transparent colloidal layer 20, and a luminescent layer 30.

Wherein the transparent colloidal layer 20 is disposed over the transparent flexible substrate layer 10; the transparent colloidal layer 20 has a patterned fine grid concave-convex structure; the light emitting layer 30 is filled in the groove of the transparent colloidal layer 20 to form a patterned light emitting network (like the light emitting layer 30).

The depth of the grooves of the grid of the light emitting layer 30 is between 0.2um and 20um, preferably between 1um and 10 um; the excitation light wave band of the light-emitting layer 30 is located in an ultraviolet wave band, a blue light wave band or an infrared wave band; the light-emitting layer 30 has an emission wavelength band between 400nm and 1000nm, preferably between 450nm and 700 nm; the transmittance of the transparent anti-counterfeiting element in a visible light wave band is more than 80 percent, and preferably more than 85 percent;

the light emitting layer 30 is an organic or inorganic photoluminescent layer, wherein the inorganic fluorescent material may include rare-earth ion luminescent and rare-earth fluorescent materials, such as alkaline-earth metal sulfides (ZnS, caS, etc.), aluminates (SrAl 2O4, caAl2O4, baAl2O4, etc.), etc. as luminescent matrix, and rare-earth lanthanides (Eu, sm, er, nd, etc.) as activator and co-activator. The organic fluorescent material can comprise organic small-molecule fluorescent materials (oxadiazole and derivatives thereof, rhodamine and derivatives thereof, coumarin derivatives and the like), organic high-molecular fluorescent materials (polyphenyl, polythiophene, polyfluorene, polytriphenylamine and derivatives thereof and the like) and organic complex fluorescent materials;

the transparent flexible substrate 10 may include a flexible plastic layer such as PI (Polyimide), BOPP (Biaxially oriented polypropylene film), PET (Polyethylene terephthalate), PC (Polycarbonate), TAC (Triacetyl Cellulose), and the like.

The generating a transparent flexible substrate layer 10 comprises: generating a transparent flexible substrate layer by a film forming mode of coating, stretching, blow molding or casting; the transparent colloidal layer 20 is generated on the transparent flexible substrate layer 10 through coating, offset printing, silk-screen printing, gravure printing and other processes; the forming of the patterned fine grid relief structure on the transparent colloidal layer 20 includes: generating a patterned fine grid concave-convex structure through processes such as nano imprinting, laser etching, electron beam etching, ion beam etching and the like; the step of filling the grooves of the transparent adhesive layer 20 with the patterned light emitting network 30 comprises: the patterned luminescent network was generated by a knife coating process.

In some embodiments of the present disclosure, as shown in fig. 6, the transparent security element of the present disclosure is applied to the window area 401 of the security article 40 by paper making, labeling, hot stamping, etc., to form a transparent security window. The security article 40 may be a security article such as a banknote, a plastic banknote, a passport, a security document, or the like.

The security article provided based on above-mentioned embodiment of this disclosure, including this transparent anti-counterfeiting element of this disclosure, this transparent anti-counterfeiting element of this disclosure is transparent under the natural light, uses special detecting instrument can observe meticulous luminous pattern to improve the counterfeit threshold, improved user experience.

Fig. 7 is a schematic diagram of some embodiments of a transparent security element detection method of the present disclosure. Preferably, the embodiment can be executed by the transparent security element detection device disclosed by the disclosure. As shown in fig. 7, the method for detecting a transparent security element of the present disclosure may include at least one of the following steps:

step 71, observing the transparent security element according to any of the above embodiments (for example, any of the embodiments of fig. 1, fig. 1b, fig. 2-fig. 6) with naked eyes.

In some embodiments of the present disclosure, step 71 may comprise: the transparent security element as described in any of the embodiments above (e.g. any of the embodiments of fig. 1a, 1b, 2-6) is viewed using a transmission spectrometer.

Step 72, using a transparent security element detection device to detect the transparent security element according to any of the embodiments described above (e.g., any of the embodiments shown in fig. 1a, 1b, and 2-5).

And 73, if the transparent anti-counterfeiting element is transparent under the visual observation and presents fine luminous images and texts under the detection equipment of the transparent anti-counterfeiting element, determining that the transparent anti-counterfeiting element is qualified.

In some embodiments of the present disclosure, in step 73, the step of presenting a fine luminous image under the transparent security element detection device may include: under the excitation of an excitation source, observing a luminescent pattern containing a fine grid presented by the transparent anti-counterfeiting element through a sensor; under the excitation of an excitation source, light emitted by the luminous area of the luminous pattern presented by the transparent anti-counterfeiting element can be observed through naked eyes, and the fine grid can not be observed.

In some embodiments of the present disclosure, step 73 may comprise: and if the light transmittance of the transparent anti-counterfeiting element detected by the transmission spectrometer is larger than a preset value and fine luminous images and texts are presented under the transparent anti-counterfeiting element detection equipment, determining that the transparent anti-counterfeiting element is qualified.

In some embodiments of the present disclosure, the predetermined value may be 70%.

In some embodiments of the present disclosure, step 73 may comprise: and if the transparent anti-counterfeiting element is transparent under the observation of naked eyes and presents fine luminous images and texts under the detection equipment of the transparent anti-counterfeiting element, the observation angle is changed under the condition of transmitting or reflecting light, and the color of the element is changed from one color to another color, the transparent anti-counterfeiting element is determined to be qualified.

In some embodiments of the present disclosure, step 73 may comprise: and if the transparent anti-counterfeiting element is transparent under the observation of naked eyes, only the local printing ink pattern can be seen, and fine luminous images and texts are presented under the detection equipment of the transparent anti-counterfeiting element, and the luminous images and texts are related or unrelated to the local printing ink pattern, determining that the transparent anti-counterfeiting element is qualified.

Fig. 8 and 9 are schematic diagrams of detection of the transparent security element in the security article of the embodiment of fig. 6 by using the method for detecting the transparent security element of the embodiment of fig. 7. As shown in fig. 8 and 9, the transparent security element of the embodiment of fig. 6 is provided in the region of a transparent window 401 of the security article 40. As shown in fig. 8, when the uv light source is off, the transparent window area 401 of the security article 40 assumes a fully transparent state. As shown in fig. 9, when the ultraviolet light source irradiates the transparent window area 401, a fine pentagram light emitting pattern generated by the light emitting layer 30 appears on the window. Since the line width of the fine grid in the light emitting layer 30 area is between 0.5um and 100um and smaller than the minimum size 100um which can be distinguished by human eyes, the microscopic grid appearance is difficult to observe by naked eyes, and only light rays emitted by the light emitting area in the shape of a five-pointed star can be observed, so that the concealment of the network is realized.

Fig. 10 is a schematic view of additional embodiments of the security article of the present disclosure. Fig. 10 may be a schematic side view of a security article including a transparent security element (e.g., the transparent security element of any of the embodiments of fig. 1a, 5-6 of the present disclosure). As shown in fig. 10, the transparent security element of the present disclosure may include a transparent flexible substrate layer 10, a transparent colloidal layer 20, and a luminescent layer 30. Wherein the transparent colloidal layer 20 is disposed over the transparent flexible substrate layer 10; the transparent colloidal layer 20 has a patterned fine-grid concavo-convex structure; the light-emitting layer 30 is filled in the groove of the transparent colloidal layer 20 to form a patterned light-emitting network (like the light-emitting layer 30). The transparent anti-counterfeiting element is applied to the upper part of the printing ink layer 50 of the safe article 40 in the modes of paper making, labeling, hot stamping and the like to form the transparent anti-counterfeiting label. The printing ink layer 50 may be formed by gravure printing, silk printing, offset printing, embossing, inkjet printing, or the like. The security article 40 may be a security article such as a banknote, a plastic banknote, a passport, a security document, or the like.

Fig. 11 and 12 are schematic diagrams of a method of detecting a transparent security element in the security article shown in fig. 10. As shown in fig. 11, when the ultraviolet light source is turned off, the transparent security element above the printing ink layer 50 is in a completely transparent state, and the image and text of the printing ink layer 50 are completely displayed. As shown in fig. 12, when the ultraviolet light source irradiates the printing ink layer 50, a fine solar luminous pattern generated by the luminescent layer 30 appears on the printing ink layer 50. Since the line width of the fine grid in the luminescent layer 30 area is 0.5um-100um, which is smaller than the minimum width 100um that human eyes can distinguish, the microscopic grid appearance is difficult to observe by naked eyes, and only light rays emitted by the luminescent area in the shape of the sun can be observed, thereby realizing the concealment of the network.

Based on the transparent anti-counterfeiting element detection method provided by the embodiment of the disclosure, a special detection instrument can be used for observing the fine luminous patterns of the transparent anti-counterfeiting element, so that the counterfeiting threshold is improved, and the user experience is improved.

Fig. 13 is a schematic view of some embodiments of a transparent security element detection apparatus of the present disclosure. As shown in fig. 13, the transparent security element detection apparatus of the present disclosure may include any one of an excitation source 131, a sensor 132, and a control device 133, wherein:

an excitation source 131, configured to excite the transparent security element according to any of the embodiments described above (e.g., any of the embodiments shown in fig. 1a, 1b, and 2-6), so that the transparent security element emits light to the outside.

In some embodiments of the present disclosure, the excitation source 131 comprises: at least one of an ultraviolet light source, a blue light source, an infrared light source, an electric field, an inert gas source, a friction source, and a pressure source.

A sensor 132 for observing the image and text presented by the transparent security element under the transparent security element detection device.

In some embodiments of the present disclosure, the sensor 92 may include at least one of a magnetic sensor, an infrared sensor, and a capacitive sensor.

And a control device 133 for determining that the transparent security element is qualified when the transparent security element is transparent under visual observation and shows a fine luminous image under excitation of an excitation source.

In some embodiments of the present disclosure, the transparent security element detection device may be a microscope, a magnetic imager, an infrared imager, or a document analyzer.

In some embodiments of the present disclosure, the transparent security element detection device may be a mobile smart device.

In some embodiments of the present disclosure, the transparent security element inspection apparatus of the present disclosure may be used to perform the transparent security element inspection method described in any of the above embodiments of the present disclosure (e.g., any of fig. 7-9, 11, and 12).

Based on this transparent anti-fake component check out test set that above-mentioned embodiment provided of this disclosure, can use special detecting instrument can observe transparent anti-fake component's meticulous luminous pattern to improve and forge the threshold, improved user experience.

Fig. 14 is a schematic view of some embodiments of a method of manufacturing a transparent security element of the present disclosure. Preferably, this embodiment can be performed by the transparent security element manufacturing apparatus of the present disclosure. As shown in fig. 14, the detection method of the transparent security element of the present disclosure may include at least one of the following steps:

step 141, a transparent flexible substrate layer is generated.

In some embodiments of the present disclosure, step 141 may comprise: the transparent flexible substrate layer is produced by at least one of coating, stretching, blowing and casting.

In some embodiments of the present disclosure, after step 141, the method for detecting a transparent security element of the present disclosure may include performing steps 142-144 at least once to manufacture the transparent security element according to any of the embodiments described above (e.g., any of fig. 1a, fig. 2-fig. 6).

Step 142, a transparent colloidal layer is formed over the transparent flexible substrate layer.

In some embodiments of the present disclosure, step 142 may comprise: and generating a transparent colloidal layer on the transparent flexible substrate layer through at least one process of coating, offset printing, silk-screen printing and gravure printing.

Step 143, forming a patterned fine grid concave-convex structure on the transparent colloidal layer.

In some embodiments of the present disclosure, step 143 may comprise: the method comprises the following steps: and generating a patterned fine grid concave-convex structure on the transparent colloid layer by at least one process of nano imprinting, laser etching, electron beam etching and ion beam etching.

Step 144, filling the grooves of the transparent glue layer with a patterned light emitting network,

in some embodiments of the present disclosure, step 144 may include: the patterned luminescent network was generated by a knife coating process.

In some embodiments of the present disclosure, the method of manufacturing a transparent security element may further comprise: a light-altering layer is created between the transparent flexible substrate layer and the transparent colloidal layer or below the transparent flexible substrate layer to produce a transparent security element as described in any of the embodiments above (e.g. the embodiment of fig. 1 b).

In some embodiments of the present disclosure, the method of manufacturing a transparent security element may further comprise: and generating an ink layer between the transparent flexible substrate layer and the transparent colloid layer or below the transparent flexible substrate layer to manufacture the transparent anti-counterfeiting element according to any one of the embodiments.

Based on the method for manufacturing the transparent anti-counterfeiting element provided by the embodiment of the disclosure, the transparent anti-counterfeiting element can be manufactured, the transparent anti-counterfeiting element is transparent under natural light, and a fine luminous pattern can be observed by using a special detection instrument, so that the counterfeiting threshold is improved, and the user experience is improved.

Fig. 15 is a schematic view of some embodiments of a transparent security element manufacturing apparatus of the present disclosure. As shown in fig. 15, the transparent security element detection apparatus of the present disclosure may include any one of a substrate generation device 151, a transparent colloidal layer generation device 152, a concave-convex structure generation device 153, and a filling device 154, wherein:

a substrate generating device 151 for generating a transparent flexible substrate layer.

And a transparent colloidal layer generating device 152 for generating a transparent colloidal layer above the transparent flexible substrate layer.

And a concave-convex structure generating device 153 for forming a patterned fine grid concave-convex structure on the transparent colloidal layer.

A filling device 154 for filling the grooves of the transparent glue layer to form a patterned light emitting network so as to manufacture the transparent security element according to any of the embodiments described above (for example, any of fig. 1a, fig. 2-fig. 6).

In some embodiments of the present disclosure, the transparent security element manufacturing apparatus of the present disclosure may be used to perform the transparent security element manufacturing method described in any of the above embodiments of the present disclosure (e.g., the embodiment of fig. 14).

In some embodiments of the present disclosure, as shown in fig. 15, the transparent security element manufacturing apparatus may further include a coating device 155, a coating device 156, a co-extrusion device 157, and a printing device 158, wherein:

and a coating device 155 for generating an optically variable coating film between the transparent flexible substrate layer and the transparent colloidal layer or below the transparent flexible substrate layer.

A coating device 156 for creating a light-altering layer between the transparent flexible substrate layer and the transparent colloidal layer or below the transparent flexible substrate layer.

And the co-extrusion device 157 is used for generating the optically variable co-extrusion film between the transparent flexible substrate layer and the transparent colloid layer or below the transparent flexible substrate layer.

A printing device 158 for generating an ink layer between the transparent flexible substrate layer and the transparent colloid layer or under the transparent flexible substrate layer to manufacture the transparent security element according to any of the embodiments (for example, fig. 1a, fig. 1b, fig. 2-fig. 6) above.

Based on this openly transparent anti-fake component manufacture equipment that above-mentioned embodiment provided, can make this openly transparent anti-fake component, this transparent anti-fake component is transparent under the natural light, uses special detecting instrument can observe meticulous luminous pattern to improve and forge the threshold, improved user experience.

Fig. 16 is a schematic diagram of some embodiments of a transparent security element detection system of the present disclosure. As shown in fig. 16, the transparent security element detection system of the present disclosure may include any one of a transmission spectrometer 161 and a transparent security element detection apparatus 162, wherein:

a transmission spectrometer 161 for observing the transparent security element according to any of the embodiments described above (e.g. any of the embodiments of fig. 1a, 1b, 2-6).

A transparent security element detection device 162, configured to excite the transparent security element according to any of the embodiments described above, so that the transparent security element sends a signal to the outside; acquiring pictures, texts or signals presented by the transparent anti-counterfeiting element after excitation of an excitation source; and determining that the transparent anti-counterfeiting element is qualified under the conditions that the light transmittance of the transparent anti-counterfeiting element is greater than a preset value and the transparent anti-counterfeiting element presents fine luminous pictures and texts or signals under the excitation of an excitation source.

In some embodiments of the present disclosure, the predetermined value is 70%.

In some embodiments of the present disclosure, the transparent security element detection device 162 may be a transparent security element detection device as described in any of the embodiments above (e.g., the embodiment of fig. 13).

Based on the transparent anti-counterfeiting element detection system provided by the embodiment of the disclosure, the transparent anti-counterfeiting element can be detected to be transparent under natural light by using the transmission spectrometer, a specific detection instrument (the transparent anti-counterfeiting element detection equipment) can be used for observing the fine light-emitting pattern of the transparent anti-counterfeiting element, and the characteristic signal of the anti-counterfeiting medium layer can be sensed, so that the counterfeiting threshold is improved, and the user experience is improved.

The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the disclosure. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

The control means described above may be implemented as a general purpose processor, a Programmable Logic Controller (PLC), a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any suitable combination thereof designed to perform the functions described herein.

Thus far, the present disclosure has been described in detail. Some details that are well known in the art have not been described in order to avoid obscuring the concepts of the present disclosure. It will be fully apparent to those skilled in the art from the foregoing description how to practice the presently disclosed embodiments.

It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware to implement the steps.

The description of the present disclosure has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the disclosure in the form disclosed. Many modifications and variations will be apparent to practitioners skilled in this art. The embodiment was chosen and described in order to best explain the principles of the disclosure and the practical application, and to enable others of ordinary skill in the art to understand the disclosure for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. A transparent security element, comprising: a transparent flexible substrate layer, at least one transparent colloidal layer and at least one light emitting layer, wherein:

the luminescent layer is filled in the groove of the transparent colloidal layer to form a patterned luminescent network;

the light-emitting layer is one or more light-emitting networks formed by combining a plurality of unit grids with the same shape and size or different sizes, wherein: the unit grid outline of the light-emitting network is a groove of a transparent colloidal layer and is filled with a light-emitting layer, a raised transparent colloidal layer is arranged inside the grid, and the outline line width is 0.5-100 um; the depth of the groove of the transparent colloid layer is 0.2um-20um;

the transparent anti-counterfeiting element has a transmittance of more than 80% in a visible light waveband, is transparent when observed by naked eyes, and at least one part of the luminescent layer is invisible;

under the condition that the transparent anti-counterfeiting element is excited by a light source and/or an electric field, the effectively excited part in the luminous layer presents a patterned luminous network;

under the excitation of an excitation source, light emitted by the luminous area of the luminous pattern presented by the transparent anti-counterfeiting element can be observed through naked eyes, and the fine grid can not be observed.

2. A transparent security element according to claim 1,

the security element when excited exhibits a distinct luminescent pattern when viewed by the naked eye, and at least a portion of the luminescent pattern is not visible to the naked eye when not excited.

3. A transparent security element according to claim 2,

the transparent anti-counterfeiting element comprises at least 2 transparent colloidal layers and at least 2 light-emitting layers, and different light-emitting patterns are presented when the transparent anti-counterfeiting element is excited differently.

4. A transparent security element according to one of claims 1 to 3,

the unit grid width of the light emitting network is 10um-200um.

5. A transparent security element according to any one of claims 1 to 3, wherein:

each unit grid of the light-emitting network is separated or communicated with each other;

the cell lattice shape is rectangular, honeycomb, diamond, parallelogram or irregular.

6. A transparent security element according to one of claims 1 to 3,

the luminescent layer contains at least one luminescent material, and the luminescent material is one or a mixture of more of photoluminescence materials, electroluminescence materials, pressure-sensitive luminescent materials, gas-sensitive luminescent materials and friction luminescent materials;

and/or the presence of a gas in the atmosphere,

the light-emitting wavelength band of the light-emitting layer is 400nm-1000nm, and the light-emitting brightness is not lower than 100 nit.

7. The transparent security element according to any one of claims 1 to 3, wherein in the case where the material of the luminescent layer is a photoluminescent material,

the exciting light wave band of the luminous layer is positioned in an ultraviolet wave band, a blue light wave band or an infrared wave band;

and/or the presence of a gas in the gas,

the photoluminescence material is an inorganic luminescent material or an organic luminescent material.

8. A security element as claimed in claim 1 further comprising a light-altering layer wherein:

the optically variable layer is positioned between the transparent flexible substrate layer and the transparent colloidal layer;

or the like, or a combination thereof,

the optically variable layer is positioned below the transparent flexible substrate layer.

9. A transparent security element according to claim 8,

the optically variable layer is a transparent optically variable layer formed by an optically variable coating film, a liquid crystal optically variable film or a multilayer co-extrusion film, and the color of the optically variable layer is changed from one color to another color under the conditions of transmission or reflection observation and observation angle change;

and/or the presence of a gas in the atmosphere,

the light change layer is generated by at least one of plating, coating and co-extrusion.

10. A security element according to claim 1, further comprising an ink layer, wherein:

the printing ink layer is located between the transparent flexible substrate layer and the transparent colloid layer, or located below the transparent flexible substrate layer.

11. A transparent security element according to claim 10,

the ink layer is a local printing ink layer, and the printing pattern of the ink layer is related or unrelated to the pattern of the light-emitting network;

and/or the presence of a gas in the atmosphere,

the ink layer is generated by at least one of silk screen printing, offset printing, gravure printing, letterpress printing and ink-jet printing.

12. A transparent security element according to one of claims 1, 8, 10,

the transparent flexible substrate layer is generated in at least one film forming mode of coating, stretching, blow molding and casting;

and/or the presence of a gas in the gas,

the transparent colloidal layer is generated by at least one process of coating, offset printing, silk-screen printing and gravure printing;

and/or the presence of a gas in the gas,

the patterned fine grid concave-convex structure is generated on the transparent colloid layer through at least one process of nano-imprinting, laser etching, electron beam etching and ion beam etching;

and/or the presence of a gas in the gas,

the luminescent layer is generated by a blade coating process.

13. A security article comprising the transparent security element of any one of claims 1 to 12.

14. The security article of claim 13 further comprising at least one of a transparent window, a sticker, a label, a security thread, and a printed image, wherein the transparent security element is applied over the transparent window, the sticker, the label, the security thread, and the printed image of the security article.

15. A method of making a transparent security element, comprising:

generating a transparent flexible substrate layer;

performing at least one of the following steps:

generating a transparent colloidal layer above the transparent flexible substrate layer;

forming a patterned fine grid concave-convex structure on the transparent colloid layer;

filling the grooves of the transparent colloid layer with a patterned light emitting network, wherein:

the light emitting layer is one or more light emitting networks formed by combining a plurality of unit grids with the same shape and size and/or different sizes, wherein: the unit grid outline of the light-emitting network is a groove of a transparent colloidal layer and is filled with a light-emitting layer, a raised transparent colloidal layer is arranged inside the grid, and the outline line width is 0.5-100 um; the depth of the groove of the transparent colloid layer is 0.2um-20um;

under the condition that the transparent anti-counterfeiting element is excited by a light source and/or an electric field, the effectively excited part in the luminescent layer presents a patterned luminescent network;

16. The method of manufacturing a transparent security element according to claim 15, further comprising:

generating a light change layer between the transparent flexible substrate layer and the transparent colloid layer;

or the like, or a combination thereof,

an optically variable layer is generated under the transparent flexible substrate layer.

17. The method of manufacturing a transparent security element of claim 16, further comprising:

generating an ink layer between the transparent flexible substrate layer and the transparent colloidal layer;

or the like, or, alternatively,

an ink layer is generated under a transparent flexible base layer.

18. The method of manufacturing a transparent security element according to claim 17,

the generating a transparent flexible substrate layer comprises: generating a transparent flexible substrate layer by at least one film forming mode of coating, stretching, blow molding and casting;

and/or the presence of a gas in the gas,

the generating a transparent colloidal layer on a transparent flexible substrate layer comprises: generating a transparent colloidal layer on the transparent flexible substrate layer through at least one process of coating, offset printing, silk-screen printing and gravure printing;

and/or the presence of a gas in the atmosphere,

the forming of the patterned fine-grid relief structure on the transparent colloidal layer includes: generating a patterned fine grid concave-convex structure on the transparent colloidal layer through at least one process of nano-imprinting, laser etching, electron beam etching and ion beam etching;

and/or the presence of a gas in the atmosphere,

the step of filling the grooves of the transparent colloid layer to form the patterned light emitting network comprises the following steps: generating a patterned light-emitting network through a blade coating process;

and/or the presence of a gas in the atmosphere,

the generating the optically variable layer between the transparent flexible substrate layer and the transparent colloidal layer or below the transparent flexible substrate layer comprises: generating a light-changing layer by at least one of plating, coating and co-extrusion;

and/or the presence of a gas in the atmosphere,

the generating of the ink layer between the transparent flexible substrate layer and the transparent colloidal layer or below the transparent flexible substrate layer comprises: the ink layer is generated by at least one of silk screen printing, offset printing, gravure printing, letterpress printing and ink-jet printing.

19. A transparent security element detection device comprising at least one excitation source for exciting the transparent security element according to any one of claims 1 to 12 such that the transparent security element emits light to the outside.

20. The transparent security element detection apparatus of claim 19, further comprising:

and the control device is used for determining that the transparent anti-counterfeiting element is qualified under the conditions that the transparent anti-counterfeiting element is transparent under the observation of naked eyes and shows fine luminous images and texts under the excitation of an excitation source.

21. A method for detecting a transparent security element, comprising:

observing the transparent security element of any one of claims 1-12 with the unaided eye;

detecting the transparent security element of any one of claims 1-12 using a transparent security element detection device;

and if the transparent anti-counterfeiting element is transparent under the visual observation and presents fine luminous images and texts under the detection equipment of the transparent anti-counterfeiting element, determining that the transparent anti-counterfeiting element is qualified.

22. The method of claim 21, wherein the presenting the fine light-emitting image under the transparent security element inspection device comprises:

23. The method of detecting a transparent security element of claim 21 or 22, further comprising:

if the transparent anti-counterfeiting element is transparent under the observation of naked eyes and presents fine luminous images and texts under the detection equipment of the transparent anti-counterfeiting element, the observation angle is changed under the condition of transmitting or reflecting light, and the color of the element is changed from one color to another color, the transparent anti-counterfeiting element is determined to be qualified;

or the like, or, alternatively,

24. A transparent security element detection system, comprising:

a transmission spectrometer for viewing the transparent security element of any one of claims 1 to 12;

a transparent security element detection device for exciting the transparent security element according to any one of claims 1 to 12 so that the transparent security element sends a signal to the outside; acquiring pictures, texts or signals presented by the transparent anti-counterfeiting element after excitation of an excitation source; and determining that the transparent anti-counterfeiting element is qualified under the conditions that the light transmittance of the transparent anti-counterfeiting element is greater than a preset value and the transparent anti-counterfeiting element presents fine luminous pictures and texts or signals under the excitation of an excitation source.