Application of anti-reflection and anti-reflection coating in anti-counterfeiting and anti-counterfeiting product

Abstract

The invention provides an application of an antireflection coating in anti-counterfeiting and an anti-counterfeiting product. In the application, at least one anti-reflection and anti-reflection coating with characteristic reflection is coated on a solid substrate, at least one part of the solid substrate is transparent, at least one part of the anti-reflection and anti-reflection coating is positioned on the transparent part of the solid substrate, and the characteristic reflection color of the anti-reflection and anti-reflection coating is used as an anti-counterfeiting identification point. The anti-counterfeiting product comprises a solid substrate, wherein at least one part of the solid substrate is transparent; the solid substrate is coated with the anti-counterfeiting coating, the anti-counterfeiting coating is formed by at least one anti-reflection and anti-reflection coating with characteristic light reflection, at least one part of the anti-counterfeiting coating is located on the transparent part of the solid substrate, and the characteristic light reflection color of the anti-counterfeiting coating serves as an anti-counterfeiting identification point. The invention develops the application of the anti-reflection and anti-reflection coating in the anti-counterfeiting field, and is particularly suitable for anti-counterfeiting of exit-entry certificates with transparent windows.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of anti-counterfeiting technology, in particular to an application of an antireflection and anti-reflective coating in anti-counterfeiting and an anti-counterfeiting product. BACKGROUND

[0002] The anti-counterfeiting technology applied to entry and exit certificates is divided into four levels according to the identification method. The first level is the anti-counterfeiting technology that can be identified by visual inspection. The anti-counterfeiting of the first level is visible to the naked eye and easy to identify for front-line inspectors. However, the anti-counterfeiting identification of the entry and exit certificates still needs to be improved.

[0003] Currently, there is no report on using the reflection of the antireflection and anti-reflective coating as an anti-counterfeiting identification point of the target to be detected (such as entry and exit certificates), and there is no report on the application of the antireflection and anti-reflective coating in the anti-counterfeiting of entry and exit certificates. SUMMARY

[0004] In view of the above technical problems, the present application provides an application of an antireflection and anti-reflective coating in anti-counterfeiting and an anti-counterfeiting product to overcome the above problems or at least partially solve the above problems.

[0005] An object of the present application is to provide an application of an antireflection and anti-reflective coating in anti-counterfeiting.

[0006] A further object of the present application is to facilitate visual anti-counterfeiting identification.

[0007] Another further object of the present application is to improve the diversity and flexibility of anti-counterfeiting identification.

[0008] In particular, according to an aspect of the present application, an application of an antireflection and anti-reflective coating in anti-counterfeiting is provided, wherein at least one layer of the antireflection and anti-reflective coating with characteristic reflection is coated on a solid substrate, at least a part of the solid substrate is transparent, and at least a part of the antireflection and anti-reflective coating is located on the transparent part of the solid substrate, and the characteristic reflection color of the antireflection and anti-reflective coating is used as an anti-counterfeiting identification point.

[0009] Optionally, the anti-counterfeiting identification is performed by visually inspecting the reflection color of the antireflection and anti-reflective coating.

[0010] Optionally, the reflection color of the antireflection and anti-reflective coating varies with the number of layers thereof; and / or The reflection color of the antireflection and anti-reflective coating varies with the material thereof.

[0011] Optionally, the antireflection and anti-reflective coating is coated on at least two different regions of the transparent part of the solid substrate, and the reflection colors of the antireflection and anti-reflective coatings in different regions are made different by adjusting the number of layers and / or the material of the antireflection and anti-reflective coating.

[0012] Optionally, different number of layers of the anti-reflective coating is coated on at least two different regions of the transparent portion of the solid substrate respectively, and the different reflective color of the anti-reflective coating of the different regions is used as the anti-counterfeiting identification point.

[0013] Optionally, different material of the anti-reflective coating is coated on at least two different regions of the transparent portion of the solid substrate respectively, and the different reflective color of the anti-reflective coating of the different regions is used as the anti-counterfeiting identification point.

[0014] Optionally, the anti-reflective coating is coated by one or more of the following methods: physical vapor deposition, chemical vapor deposition, pulling, spraying, spin coating, blade coating, roll coating, manual coating, printing, and printing.

[0015] Optionally, the solid substrate is selected from inorganic glass, polymer plate or film, and entry and exit certificate with transparent window.

[0016] According to another aspect of the present application, there is also provided an anti-counterfeiting product comprising: a solid substrate, at least a portion of the solid substrate being transparent; and an anti-counterfeiting coating coated on the solid substrate, wherein the anti-counterfeiting coating is formed by at least one layer of anti-reflective coating having a characteristic reflection, at least a portion of the anti-counterfeiting coating being located on the transparent portion of the solid substrate, and the characteristic reflection color of the anti-counterfeiting coating is used as the anti-counterfeiting identification point.

[0017] Optionally, the reflection color of the anti-counterfeiting coating varies with the number of layers of the anti-reflective coating; and / or the reflection color of the anti-counterfeiting coating varies with the material of the anti-reflective coating.

[0018] Optionally, the anti-counterfeiting coating comprises at least two portions formed on at least two different regions of the transparent portion of the solid substrate respectively, wherein the number of layers and / or the material of the anti-reflective coating of the at least two portions of the anti-counterfeiting coating are selected to make the reflection color of the at least two portions different.

[0019] Optionally, the number of layers and the reflection color of the anti-reflective coating of the at least two portions of the anti-counterfeiting coating are different.

[0020] Optionally, the at least two portions of the anti-counterfeiting coating are formed by different material of the anti-reflective coating, and the reflection color of the at least two portions is different.

[0021] Optionally, the anti-counterfeiting coating is a film presented in a pattern and / or characters. wherein the characters comprise at least one of words, letters, symbols, and numbers.

[0022] Optionally, the characters are micro characters.

[0023] The present application coats at least one anti-reflective coating with characteristic reflection on at least a part of a solid substrate which is transparent, and makes at least a part of the anti-reflective coating on the transparent part of the solid substrate, thereby directly applying the anti-reflective coating as an anti-counterfeiting coating in the anti-counterfeiting field, and taking the reflection color of the anti-reflective coating as an anti-counterfeiting identification point, thereby expanding the application of the anti-reflective coating in the anti-counterfeiting field.

[0024] Further, the characteristic reflection color of the anti-reflective coating in the present application is visible to the naked eye and easy to identify, thereby facilitating visual anti-counterfeiting identification.

[0025] Further, in the present application, different layers and / or materials of anti-reflective coating are coated on at least two different areas of the transparent part of the solid substrate, so that the reflection colors of the anti-reflective coatings in different areas are different, thereby forming multi-color reflection as an anti-counterfeiting identification point, and improving the diversity and flexibility of anti-counterfeiting identification.

[0026] Further, in the present application, the anti-reflective coating can be formed into a film with patterns and / or characters, and in combination with the characteristic reflection of the anti-reflective coating, the shape and content of the patterns and / or characters can be displayed under light (such as sunlight or fluorescent light), thereby further enhancing the anti-counterfeiting identification effect.

[0027] Further, the application method and anti-counterfeiting product of the present application are widely applicable in the anti-counterfeiting field, and in particular, can be applied to the anti-counterfeiting of entry and exit certificates with transparent windows.

[0028] The above description is only a summary of the technical solutions of the present application, in order to more clearly understand the technical means of the present application, and to be implemented in accordance with the content of the specification, and in order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the following specific embodiments of the present application are described.

[0029] The above and other purposes, advantages and features of the present application will become more apparent to those skilled in the art from the following detailed description of specific embodiments of the present application, taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0030] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are for purposes of illustration only and are not considered a limitation thereof. Moreover, in the drawings, like reference numerals designate like parts throughout the several views. In the drawings: Figure 1 is a structural schematic diagram of an anti-counterfeiting product according to an embodiment of the present application; Figure 2is a schematic diagram of the structure of a security product according to another embodiment of the present application, wherein the security coating is presented in a figure; Figure 3 is a schematic diagram of the structure of a security product according to yet another embodiment of the present application, wherein the security coating is presented in a character; Figure 4a and Figure 4b are respectively a top view and a front view schematic diagram of the structure of a security product according to still another embodiment of the present application; Figure 5a and Figure 5b are respectively a top view and a front view schematic diagram of the structure of a security product according to yet another embodiment of the present application; Figure 6 is a schematic diagram of a solid substrate coated with an antireflective coating according to embodiment 1 of the present application; Figures 7a to 7c are pictures of the reflection of a solid substrate coated with 1, 2 and 3 layers of antireflective coating respectively under a daylight lamp according to embodiment 1 of the present application; Figure 8 is a schematic diagram of the reflection of a solid substrate coated with different numbers of layers of antireflective coating in different areas of the substrate according to embodiment 1 of the present application, wherein area a is coated with 1 layer of antireflective coating, area b is coated with 2 layers of antireflective coating and area c is coated with 3 layers of antireflective coating; Figure 9 is a schematic diagram of a part of a solid substrate coated with an antireflective coating presenting a figure according to embodiment 2 of the present application; Figure 10 is a schematic diagram of a part of a solid substrate coated with an antireflective coating presenting a text according to embodiment 2 of the present application; Figure 11 is a schematic diagram of a part of a solid substrate coated with an antireflective coating presenting a microtext according to embodiment 2 of the present application. DETAILED DESCRIPTION

[0031] Exemplary embodiments of the present disclosure will be described herein below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it is understood that the present disclosure can be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the present disclosure to those skilled in the art. The scope of the present application should include the full content of the claims. The methods involved are conventional methods unless otherwise specified. The reagents and materials involved, unless otherwise specified, can be obtained commercially.

[0032] It should be noted that in the description of the present application, the terms "center", "upper", "lower", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. In addition, the terms "first", "second", "third" and the like are only for the purpose of description and cannot be understood as indicating or implying relative importance.

[0033] To solve the foregoing technical problems, embodiments of the present application provide an application of an antireflection and anti-reflective coating in forgery prevention.

[0034] In this application, at least one layer of the antireflection and anti-reflective coating with characteristic reflection is coated on a solid substrate to form a forgery prevention coating. At least a part of the solid substrate is transparent, and at least a part of the antireflection and anti-reflective coating is located on the transparent part of the solid substrate, and the characteristic reflection color of the antireflection and anti-reflective coating is used as a forgery prevention identification point. In other words, the forgery prevention performance of the obtained forgery prevention coating is based on the reflection of the forgery prevention coating.

[0035] The present application coats at least one layer of the antireflection and anti-reflective coating with characteristic reflection on a solid substrate with at least a part being transparent, and at least a part of the antireflection and anti-reflective coating is located on the transparent part of the solid substrate, so that the antireflection and anti-reflective coating can be directly applied to the field of forgery prevention as a forgery prevention coating, and the reflection color of the antireflection and anti-reflective coating is used as a forgery prevention identification point, thereby expanding the application of the antireflection and anti-reflective coating in the field of forgery prevention.

[0036] In some embodiments, the solid substrate can be completely transparent, or only partially transparent. For example, the solid substrate can have a transparent window, and the part other than the transparent window is opaque.

[0037] The antireflection and anti-reflective coating can completely cover the surface of the solid substrate, or partially cover the surface of the solid substrate, for example, only cover the transparent part of the solid substrate, or even only cover a part of the transparent part of the solid substrate.

[0038] In some further embodiments, the forgery prevention identification is performed by visually observing the reflection color of the antireflection and anti-reflective coating. Since the characteristic reflection color of the antireflection and anti-reflective coating in the present application is visible to the naked eye and easy to identify, it is more convenient to visually observe the forgery prevention identification.

[0039] In some embodiments, the reflection color of the antireflection and anti-reflective coating changes with the number of layers thereof; and / or The reflection color of the antireflection and anti-reflective coating changes with the material thereof.

[0040] Thus, different reflective colors can be obtained by selecting the number of layers and / or the material of the anti-reflective coating, which can be used as a point of anti-counterfeiting identification.

[0041] It should be noted that in the present application, one layer of anti-reflective coating is formed by coating the surface of the solid substrate with the anti-reflective coating once, i.e., one layer of anti-reflective coating is formed each time the surface of the solid substrate is coated with the anti-reflective coating once. In other words, the number of layers of the anti-reflective coating is equal to the number of times the anti-reflective coating is coated.

[0042] In some embodiments, the anti-reflective coating can be coated on at least two different regions of the transparent portion of the solid substrate respectively, and the reflective colors of the anti-reflective coatings in different regions are made different by adjusting the number of layers and / or the material of the anti-reflective coating.

[0043] In some specific embodiments, different numbers of layers of anti-reflective coating are coated on at least two different regions of the transparent portion of the solid substrate respectively, and the different reflective colors of the anti-reflective coatings in different regions are used as a point of anti-counterfeiting identification.

[0044] For example, the transparent portion of the solid substrate can be divided into 2, 3 or more different regions, and different numbers of layers of anti-reflective coating are coated on different regions. Under sunlight or fluorescent light, the reflective colors of different regions are different, and multi-color reflection can be presented.

[0045] In the case of the overall transparency of the solid substrate, the solid substrate can be divided into different regions, and different numbers of layers of anti-reflective coating are coated on different regions to present multi-color reflection.

[0046] In some specific embodiments, different materials of anti-reflective coating are coated on at least two different regions of the transparent portion of the solid substrate respectively, and the different reflective colors of the anti-reflective coatings in different regions are used as a point of anti-counterfeiting identification.

[0047] For example, the transparent portion of the solid substrate can be divided into 2, 3 or more different regions, and different materials of anti-reflective coating are coated on different regions. Under sunlight or fluorescent light, the reflective colors of different regions are different, and multi-color reflection can be presented.

[0048] In the case of the overall transparency of the solid substrate, the solid substrate can be divided into different regions, and different materials of anti-reflective coating are coated on different regions to present multi-color reflection.

[0049] The anti-counterfeiting effect is improved by forming the anti-reflective and anti-fogging coating in the form of a film with patterns and / or characters, and the anti-reflective and anti-fogging coating has a characteristic reflection, which can display the shape and content of the patterns and / or characters under light (such as sunlight or fluorescent light), thereby further enhancing the anti-counterfeiting effect.

[0050] In some embodiments, the anti-reflective and anti-fogging coating can be a whole film, a film in the form of patterns, a film in the form of characters, or a film in the form of a combination of patterns and characters.

[0051] In some embodiments, the anti-reflective and anti-fogging coating can be a whole film, a film in the form of patterns, a film in the form of characters, or a film in the form of a combination of patterns and characters.

[0052] The characters can include at least one of a word, a letter, a symbol, and a number.

[0053] In some embodiments, the characters can be micro characters. In other words, the anti-reflective and anti-fogging coating can be in the form of micro characters. In this way, the micro characters can be displayed under sunlight or fluorescent light, so as to achieve the anti-counterfeiting effect.

[0054] In some embodiments, the anti-reflective and anti-fogging coating can be prepared by one or more of physical vapor deposition, chemical vapor deposition, pulling, spraying, spin coating, blade coating, roller coating, manual coating, printing, and printing.

[0055] For the preparation of the anti-reflective and anti-fogging coating covering the whole solid substrate, one or more of physical vapor deposition, chemical vapor deposition, pulling, spraying, spin coating, blade coating, roller coating, manual coating, printing, and printing can be used to form the anti-reflective and anti-fogging coating on the surface of the solid substrate.

[0056] For the preparation of the anti-reflective and anti-fogging coating covering part of the solid substrate, a mask can be first formed on the surface of the solid substrate, and then a pattern, a character, a combination of a pattern and a character, or a micro character can be pre-prepared on the mask. Then, one or more of physical vapor deposition, chemical vapor deposition, pulling, spraying, spin coating, blade coating, roller coating, manual coating, printing, and printing can be used to form the anti-reflective and anti-fogging coating covering part of the solid substrate on the surface of the solid substrate.

[0057] For pulling, spraying, spin coating, blade coating, roller coating, manual coating, printing, and printing, a corresponding sol can be first prepared by a sol-gel method, and then the sol can be coated on the surface of the solid substrate.

[0058] The principle of physical vapor deposition is to make atoms / molecules deposit on the surface of a substrate to form a thin film by evaporating or sputtering target material in a vacuum environment. A commonly used technique of physical vapor deposition is vacuum evaporation; another commonly used technique is magnetron sputtering, which uses plasma to bombard the target material (such as titanium dioxide, silicon dioxide, etc.) to deposit sputtered particles into a film.

[0059] The principle of chemical vapor deposition is to generate a solid thin film on the surface of a substrate by chemical reaction of a gaseous precursor. A commonly used technique is plasma-enhanced chemical vapor deposition, which uses plasma to activate the reaction gas to generate the target thin film. For example, SiH4 and O2 can be activated by plasma to generate a SiO2 film.

[0060] The principle of sol-gel method is to hydrolyze the raw material for generating a target thin film (such as TEOS for generating a SiO2 film) to form a sol, and then form a film on the substrate by pulling, spraying, spinning, scraping, rolling, and manual coating, etc. to prepare an anti-reflective and anti-fouling film.

[0061] In some embodiments, the solid substrate can be selected from inorganic glass, polymer plate or film, entry and exit certificate with transparent window, etc.

[0062] The inorganic glass can be, for example, K7105 glass, 5mm thick process glass, glass slide, etc.

[0063] The polymer plate or film can be, for example, polycarbonate (PC), polymethyl methacrylate (PMMA), automotive sunshade film, resin lens, polyethylene terephthalate (PET), etc.

[0064] The entry and exit certificate with transparent window can be, for example, the data page and visa page of the entry and exit certificate (such as passport, seaman's book) with transparent window, card-type entry and exit certificate, etc.

[0065] The present application can be applied to the anti-counterfeiting of entry and exit certificates with transparent windows. Specifically, the anti-counterfeiting coating formed by the anti-reflective and anti-fouling coating of the present application can be used in the anti-counterfeiting, printing anti-counterfeiting, and issuance anti-counterfeiting manufacturing process of the entry and exit certificate material.

[0066] Based on the same technical concept, the embodiments of the present application also provide an anti-counterfeiting product 100.

[0067] Figure 1 is a structural schematic diagram of the anti-counterfeiting product 100 according to an embodiment of the present application. As shown in Figure 1As shown, the anti-counterfeiting product 100 includes a solid substrate 110 and an anti-counterfeiting coating 120 coated on the solid substrate 110. At least a portion of the solid substrate 110 is transparent. The anti-counterfeiting coating 120 is formed by at least one layer of anti-reflective and anti-fouling coating having a characteristic reflection color. At least a portion of the anti-counterfeiting coating 120 is located on the transparent portion 111 of the solid substrate 110, and the characteristic reflection color of the anti-counterfeiting coating 120 is used as an anti-counterfeiting identification point.

[0068] The anti-counterfeiting coating 120 can cover the entire surface of the solid substrate 110, or can cover only the transparent portion 111 of the solid substrate 110, or can cover only a portion of the transparent portion 111 of the solid substrate 110.

[0069] Figure 2 FIG. 4 is a schematic diagram of the structure of an anti-counterfeiting product 100 according to another embodiment of the present application, in which the anti-counterfeiting coating 120 is presented in a pattern; Figure 3 FIG. 5 is a schematic diagram of the structure of an anti-counterfeiting product 100 according to yet another embodiment of the present application, in which the anti-counterfeiting coating 120 is presented in characters.

[0070] As shown in FIG. 6, in some embodiments, the anti-counterfeiting coating 120 is a film presented in a pattern. Figure 2 As shown in FIG. 7, in some embodiments, the anti-counterfeiting coating 120 is a film presented in characters. The characters can include, for example, words, letters, symbols, numbers, etc.

[0071] Figure 3 As shown in FIG. 8, in some embodiments, the anti-counterfeiting coating 120 is a film presented in a combination of a pattern and characters.

[0072] It should be noted that

[0073] The pattern and characters shown in FIGS. 6-8 are only exemplary and do not limit the present application. Figure 2 Figure 3 In yet some embodiments, the characters can be micro characters. That is, the anti-counterfeiting coating 120 can be a film presented in micro characters. Thus, the content of the micro characters can be displayed under sunlight or a fluorescent lamp.

[0074] In some embodiments, the reflection color of the anti-counterfeiting coating 120 varies with the number of layers of the anti-reflective and anti-fouling coating; and / or the reflection color of the anti-counterfeiting coating 120 varies with the material of the anti-reflective and anti-fouling coating. Thus, the anti-counterfeiting coating 120 having different reflection colors can be formed by selecting anti-reflective and anti-fouling coatings with different numbers of layers or different materials.

[0075] In some embodiments, the reflection color of the anti-counterfeiting coating 120 varies with the number of layers of the anti-reflective and anti-fouling coating; and / or the reflection color of the anti-counterfeiting coating 120 varies with the material of the anti-reflective and anti-fouling coating. Thus, the anti-counterfeiting coating 120 having different reflection colors can be formed by selecting anti-reflective and anti-fouling coatings with different numbers of layers or different materials.

[0076] ​​In some embodiments, the anti-counterfeiting coating 120 includes at least two portions formed on at least two different regions of the transparent portion 111 of the solid substrate 110, respectively, wherein the number of layers and / or the material of the anti-reflective and anti-reflective coating of the at least two portions of the anti-counterfeiting coating 120 are selected to make the reflective color of the at least two portions different from each other.

[0077] Figure 4a and Figure 4b are a top view and a front view structural schematic diagram of an anti-counterfeiting product 100 according to yet another embodiment of the present application. As shown in Figure 4a and Figure 4b , in some embodiments, the anti-counterfeiting coating 120 includes at least two portions formed on at least two different regions of the transparent portion 111 of the solid substrate 110, respectively, wherein the number of layers and the reflective color of the anti-reflective and anti-reflective coating of the at least two portions of the anti-counterfeiting coating 120 are different from each other.

[0078] As shown in Figure 4a and Figure 4b , the anti-counterfeiting product 100 includes three portions 120a, 120b and 120c formed on three different regions of the transparent portion 111 of the solid substrate 110, respectively. The portions 120a, 120b and 120c are formed by anti-reflective and anti-reflective coatings with different numbers of layers, wherein the portion 120a is formed by one layer of anti-reflective and anti-reflective coating, the portion 120b is formed by two layers of anti-reflective and anti-reflective coating, and the portion 120c is formed by three layers of anti-reflective and anti-reflective coating, which makes the portions 120a, 120b and 120c present different reflective colors, respectively.

[0079] Figure 5a and Figure 5b are a top view and a front view structural schematic diagram of an anti-counterfeiting product 100 according to yet another embodiment of the present application. As shown in Figure 5a and Figure 5b , in some embodiments, the anti-counterfeiting coating 120 includes at least two portions formed on at least two different regions of the transparent portion 111 of the solid substrate 110, respectively, wherein the number of layers and the reflective color of the anti-reflective and anti-reflective coating of the at least two portions of the anti-counterfeiting coating 120 are different from each other.

[0080] As shown in Figure 5a and Figure 5b , the anti-counterfeiting product 100 includes three portions 120d, 120e and 120f formed on three different regions of the transparent portion 111 of the solid substrate 110, respectively. The portions 120d, 120e and 120f are formed by anti-reflective and anti-reflective coatings with different materials, which makes the portions 120d, 120e and 120f present different reflective colors, respectively.

[0081] It should be noted that Figure 4a , Figure 4b , Figure 5a and Figure 5b The shape of the transparent portion 111 of the solid substrate 110 and the number, shape, layer number and distribution of the different portions of the anti-counterfeiting coating 120 are only exemplary and do not limit the present application. The different portions of the anti-counterfeiting coating 120 can be adjacent to each other or separated from each other.

[0082] In addition, although Figure 5a and Figure 5b The different portions of the anti-counterfeiting coating 120 are formed by one layer of anti-reflective coating, those skilled in the art can understand that the different portions of the anti-counterfeiting coating 120 can also be formed by anti-reflective coatings of different materials and different layers.

[0083] In some embodiments, the solid substrate 110 can be selected from inorganic glass, polymer plate or film, entry and exit certificate with transparent window, etc.

[0084] The inorganic glass is, for example, K7105 glass, 5mm thick craft glass, glass slide, etc.

[0085] The polymer plate or film can be, for example, polycarbonate (PC), polymethyl methacrylate (PMMA), automotive sunshade film, resin lens, polyethylene terephthalate (PET), etc.

[0086] The entry and exit certificate with transparent window can be, for example, the entry and exit certificate (such as passport, seaman's book) with transparent window, visa page, card-type entry and exit certificate, etc.

[0087] The technical solutions of the present application will be further described below through some more specific embodiments.

[0088] Embodiment 1 In Embodiment 1, the silica hollow sphere anti-reflective coating is applied to anti-counterfeiting.

[0089] The preparation of the silica hollow sphere anti-reflective coating includes the following two steps.

[0090] First step: preparation of sol solution containing silica hollow sphere nanoparticles The preparation method described in Chinese Patent Application No. 201410758433.3 was followed. Specifically, 0.1-0.7 g of polyacrylic acid was dissolved in 4.5 mL of ammonia water and ultrasonically dispersed; then, it was added dropwise to a container containing 90 mL of anhydrous ethanol and stirred to obtain a mixture; 1-4 mL of tetraethoxysilane was added dropwise to the mixture at a rate of 45 μL per minute; after the addition was completed, the resulting solution was stirred at room temperature to obtain a sol solution containing silica hollow sphere nanoparticles.

[0091] Step 2: Preparation of silica hollow sphere coating A sol-gel solution containing hollow silica nanoparticles is applied to a solid substrate using methods such as dip coating, spraying, spin coating, blade coating, roller coating, or manual application. Figure 6 As shown.

[0092] By varying the number of times the sol solution containing hollow silica nanoparticles is coated, substrates with different numbers of layers of silica hollow sphere antireflective and anti-reflective coatings can be obtained. Specifically, by coating the sol solution containing hollow silica nanoparticles once, twice, and three times, substrates with one, two, and three layers of silica hollow sphere antireflective and anti-reflective coatings were obtained. Under sunlight or fluorescent light, the solid substrate coated with one layer of silica hollow sphere antireflective and anti-reflective coating reflects yellow light, as shown in the image. Figure 7a As shown; the solid substrate coated with two layers of silica hollow sphere antireflective and anti-reflective coating reflects a blue-violet light, as... Figure 7b As shown; the solid substrate coated with three layers of silica hollow sphere antireflective and anti-reflective coating reflects blue light, as... Figure 7c As shown.

[0093] When a solid substrate is divided into three regions, region a is coated with one layer of silica hollow sphere antireflective coating, region b is coated with two layers of silica hollow sphere antireflective coating, and region c is coated with three layers of silica hollow sphere antireflective coating. In this way, different regions of the same solid substrate are coated with different numbers of silica hollow sphere antireflective coatings, resulting in the overall reflection of light from the solid substrate being multicolored, such as... Figure 8 As shown.

[0094] Example 2 In Example 2, an anti-reflection and anti-reflection coating was prepared that partially covered a solid substrate.

[0095] First, a mask is formed on a solid substrate, and graphics, text, and micro-characters are pre-fabricated on the mask. Then, particles are deposited onto the solid substrate using magnetron sputtering to form films. The resulting anti-reflection and anti-reflection coatings, which present as graphics, text, and micro-characters, are shown below. Figure 9 ,Figure 10 and Figure 11 as shown.

[0096] The beneficial effects of the present application are as follows: The present application opens up the application of anti-reflective and anti-fogging coating in the field of entry and exit certificate anti-counterfeiting.

[0097] 1. The present application uses the reflection of the anti-reflective and anti-fogging coating as an anti-counterfeiting point.

[0098] 2. The anti-counterfeiting point of the present application does not need to rely on detection instruments and equipment and can be seen with the naked eye and easily identified.

[0099] 3. The application method of the anti-reflective and anti-fogging coating of the present application can be used in the anti-counterfeiting of entry and exit certificate materials, printing anti-counterfeiting, and the production process of issuing anti-counterfeiting.

[0100] 4. The anti-reflective and anti-fogging coating in the present application can be a whole film, a film presenting a pattern, a film presenting characters, or a film presenting a combination of images and characters. The reflection of the anti-reflective and anti-fogging coating is combined with the pattern and / or characters as an anti-counterfeiting identification point, so that the coating with the pattern and / or characters can display the shape and content of the pattern and / or characters under sunlight or fluorescent light.

[0101] 5. The anti-reflective and anti-fogging coating in the present application can be a film presenting micro characters, which can display micro characters under sunlight or fluorescent light.

[0102] 6. The anti-reflective and anti-fogging coating in the present application can completely cover the solid substrate or cover part of the solid substrate.

[0103] 7. The reflection of the anti-reflective and anti-fogging coating in the present application can be single color or multi-color, and the single color or multi-color reflection can be used as an anti-counterfeiting point.

[0104] 8. The light transmittance of the solid substrate coated with the anti-reflective and anti-fogging coating is higher than that of the blank substrate, which is more conducive to the use of the transparent window as a decoding mirror.

[0105] 9. The anti-counterfeiting application and anti-counterfeiting products of the present application are widely applicable in the field of anti-counterfeiting, such as inorganic glass (such as K7105 glass, 5mm thick craft glass, glass slides, etc.), polymer plates or films (such as PC, PMMA, automotive sun protection film, resin lenses, PET), entry and exit certificate (passport, seaman's certificate) data pages and visa pages, card-type entry and exit certificates, etc.

[0106] In the specification provided herein, a large number of specific details are described. However, it can be understood that the embodiments of the present application can be practiced without these specific details. In some examples, well-known methods, structures and techniques are not shown in detail in order not to obscure the understanding of the present specification.

[0107] At this point, those skilled in the art will appreciate that although specific exemplary embodiments of the application have been described herein, the present application also encompasses many other variations or modifications in accordance with the principles of the application as set forth above. Accordingly, the scope of the present application should be understood to include all such variations and modifications.

Claims

1. Use of an antireflective, antifingerprint coating in forgery protection, characterized in that Applying at least one anti-reflective coating having a characteristic reflective light on a solid substrate, at least a portion of the solid substrate being transparent, and at least a portion of the anti-reflective coating being on the transparent portion of the solid substrate, and using the characteristic reflective light color of the anti-reflective coating as an anti-counterfeiting identification point.

2. Use of the antireflective and antifouling coating according to claim 1 in forgery protection, characterized in that Anti-counterfeiting identification is performed by visually observing the reflective light color of the anti-reflective coating.

3. Use of the antireflective and antifouling coating according to claim 1 in forgery protection, characterized in that The reflective light color of the anti-reflective coating varies with the number of layers of the anti-reflective coating; and / or The reflective light color of the anti-reflective coating varies with the material of the anti-reflective coating.

4. Use of the antireflective and antifouling coating according to claim 3 in forgery protection, characterized in that The anti-reflective coating is applied on at least two different areas of the transparent portion of the solid substrate, respectively, and the reflective light colors of the anti-reflective coatings of the different areas are made different by adjusting the number of layers and / or the material of the anti-reflective coating.

5. Use of the antireflective and antifouling coating according to claim 4 in forgery protection, characterized in that The anti-reflective coating is applied on at least two different areas of the transparent portion of the solid substrate, respectively, with different numbers of layers, and the different reflective light colors of the anti-reflective coatings of the different areas are used as anti-counterfeiting identification points.

6. Use of the antireflective and antifouling coating according to claim 4 in forgery protection, characterized in that The anti-reflective coating is applied on at least two different areas of the transparent portion of the solid substrate, respectively, with different materials, and the different reflective light colors of the anti-reflective coatings of the different areas are used as anti-counterfeiting identification points.

7. Use of the antireflective and antifouling coating according to claim 1 in forgery protection, characterized in that The anti-reflective coating is applied by one or more of the following methods: physical vapor deposition, chemical vapor deposition, pulling, spraying, spin coating, blade coating, roll coating, manual coating, printing, and printing.

8. Use of the antireflective and antifouling coating according to claim 1 in forgery protection, characterized in that The solid substrate is selected from inorganic glass, polymer plate or film, and entry and exit certificates with transparent windows.

9. An anti-counterfeiting product, characterized in that, Comprises: a solid substrate, at least a portion of the solid substrate being transparent; and an anti-counterfeiting coating applied on the solid substrate, wherein the anti-counterfeiting coating is formed by at least one anti-reflective coating having a characteristic reflective light, at least a portion of the anti-counterfeiting coating being on the transparent portion of the solid substrate, and using the characteristic reflective light color of the anti-counterfeiting coating as an anti-counterfeiting identification point.

10. The security product according to claim 9, characterized in that The reflective light color of the anti-counterfeiting coating varies with the number of layers of the anti-reflective coating; and / or The reflective light color of the anti-counterfeiting coating varies with the material of the anti-reflective coating.

11. The security product according to claim 10, characterized in that The anti-counterfeiting coating comprises at least two portions formed on at least two different areas of the transparent portion of the solid substrate, respectively, wherein the number of layers and / or the material of the anti-reflective coating of the at least two portions of the anti-counterfeiting coating are selected to make the reflective light colors of the at least two portions different.

12. The security product according to claim 11, characterized in that The number of layers and the reflective light color of the anti-reflective coating of the at least two portions of the anti-counterfeiting coating are different.

13. The security product according to claim 11, characterized in that The at least two portions of the anti-counterfeiting coating are formed by anti-reflective coatings of different materials, and the reflective light colors of the at least two portions are different.

14. The security product of claim 9, wherein, The anti-counterfeiting coating is a film presented in graphics and / or characters; wherein the characters comprise at least one of words, letters, symbols, and numbers; Optionally, the characters are micro characters.

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