Anti-fake film material and manufacturing method thereof

Abstract

The application provides an anti-fake film material and a manufacturing method thereof, and the manufacturing method comprises the following steps: selecting a base material, manufacturing a metal foil with a micro-nano diffraction grating structure on the base material, crushing the base material and the metal foil to form particles, high-temperature melting the particles formed by crushing the base material and the metal foil, forming free metal micro-foils after melting the metal foil, and forming the anti-fake film material after extruding and calendering the base material and the metal foil after high-temperature melting. The metal foil has the micro-nano diffraction grating structure, which helps to improve the anti-fake effect of the metal micro-foil, so that the anti-fake film material has a certain anti-fake effect, and the difficulty of imitation and forgery by illegal persons is increased. Meanwhile, the anti-fake film material with the metal foil can be applied to various fields and various types of anti-fake products, can be superimposed with other anti-fake technologies in the products, the anti-fake effect of the products is increased, and the anti-fake film material has the characteristics of wide application range and difficulty in forgery.

Description

Technical Field

[0001] This invention relates to the field of anti-counterfeiting technology, and more particularly to an anti-counterfeiting film material and its manufacturing method. Background Technology

[0002] Optical anti-counterfeiting technology, as a technology that is easy to identify and difficult to counterfeit, is widely used in high-end anti-counterfeiting products such as certificates and cards, and has achieved very good results. Users can observe the anti-counterfeiting image with the naked eye, and then identify the authenticity of the anti-counterfeiting product through the anti-counterfeiting image. The application of optical anti-counterfeiting technology has brought great convenience to our lives, but anti-counterfeiting products also carry a lot of personal information, which is related to the user's property and information security. Therefore, higher requirements are placed on the security of anti-counterfeiting products.

[0003] Currently, with the continuous development of society, economy, and technology, and the increasing transparency of production methods, existing anti-counterfeiting products are finding it increasingly difficult to meet the needs of anti-counterfeiting. As a result, many criminals have begun to counterfeit and alter anti-counterfeiting products, causing serious economic losses to the people.

[0004] In conclusion, how to enhance the anti-counterfeiting effect of anti-counterfeiting products and increase the difficulty of counterfeiting and altering them is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of this invention is to provide an anti-counterfeiting film material and its manufacturing method. The metal micro-foil of the anti-counterfeiting film material can enhance the anti-counterfeiting effect through a micro-nano diffraction grating structure, thus meeting anti-counterfeiting requirements. At the same time, it can enrich the visual effect of the metal micro-foil and improve the aesthetics of the anti-counterfeiting film material. Furthermore, the anti-counterfeiting film material can be applied to different types of anti-counterfeiting products and can be used in conjunction with other anti-counterfeiting technologies to further increase the difficulty of imitating and counterfeiting anti-counterfeiting products and protect users' information security.

[0006] The technical solution provided by this invention is as follows:

[0007] A method for manufacturing an anti-counterfeiting film material includes the following steps:

[0008] Select the substrate;

[0009] Fabricate metal foils with micro / nano diffraction grating structures on a substrate;

[0010] The substrate and metal foil are crushed into granules;

[0011] The particles made by crushing the substrate and metal foil are melted at high temperature, and the melted metal foil forms free metal micro foil;

[0012] Anti-counterfeiting film is formed by extruding and calendering the substrate and metal foil after they have been melted at high temperature.

[0013] In some embodiments, the fabrication of a metal foil with a micro / nano diffraction grating structure on a substrate specifically includes the following steps:

[0014] Resin is printed on a substrate using gravure printing technology;

[0015] Micro-nano diffraction grating structures were molded onto resin.

[0016] The side of the substrate printed with resin is metal-plated to form a first metal foil and a second metal foil.

[0017] In some embodiments, after molding the micro / nano diffraction grating structure onto the resin, the step further includes:

[0018] A wear-resistant layer is formed by coating the entire side of the substrate where the resin is printed.

[0019] In some embodiments, after metallizing the entire side of the substrate printed with resin to form a first metal foil and a second metal foil, the method further includes the following steps:

[0020] A wear-resistant layer is formed by coating the surfaces of the first and second metal foils.

[0021] In some embodiments, the process of pulverizing the substrate and metal foil into particles and then melting them at high temperature to form free metal micro-foils specifically includes the following steps:

[0022] Add particles of the same material as the substrate to the granules made by crushing the substrate and metal foil;

[0023] The crushed particles and particles of the same material as the base material are melted at high temperature;

[0024] After the metal foil melts, it forms free metal micro foil.

[0025] An anti-counterfeiting film material is manufactured using the manufacturing method of any of the anti-counterfeiting film materials described in the preceding claims.

[0026] An anti-counterfeiting film material includes a metal micro foil, a resin, and an anti-counterfeiting film material body. The metal micro foil and the resin are distributed within the anti-counterfeiting film material body. The metal micro foil includes a first metal micro foil and a second metal micro foil. The surface of the first metal micro foil is provided with a micro-nano diffraction grating structure, which is used to improve the anti-counterfeiting effect.

[0027] In some embodiments, a wear-resistant layer is also included, which is disposed on the surface of the metal micro foil and has an overall transparent structure.

[0028] In some embodiments, the wear-resistant layer is an aluminum oxide coating or a silicon dioxide coating.

[0029] In some embodiments, the first metal micro foil is shaped like a shield, an arrow, or text, or a combination of two or more shapes, and the second metal micro foil is in powder form.

[0030] and / or

[0031] The micro-nano diffraction grating structure of the first metal micro foil is at least one of a sinusoidal grating, a blazed grating, and a high-frequency zero-order diffraction grating.

[0032] The anti-counterfeiting film material and its manufacturing method provided by this invention have the following beneficial effects:

[0033] 1. The present invention provides an anti-counterfeiting film material and its manufacturing method. The anti-counterfeiting film material manufactured by the method contains metal micro foils. The manufacturing method is simple. A micro-nano diffraction grating structure is formed on the surface of the first metal micro foil, which gives the first metal micro foil a certain anti-counterfeiting function. At the same time, the anti-counterfeiting film material can be applied to different anti-counterfeiting products, which can increase the anti-counterfeiting effect of the anti-counterfeiting products and has a wide range of applications.

[0034] 2. The present invention provides an anti-counterfeiting film material and its manufacturing method, comprising a metal micro foil with a micro / nano diffraction grating structure. The micro / nano diffraction grating structure is at least one of a sinusoidal grating, a blazed grating, and a high-frequency zero-order diffraction grating. The micro / nano diffraction grating structure exhibits different light-changing effects at different angles. Moreover, the micro / nano diffraction grating structure is not limited to the above-mentioned types, but can also be a free combination of other micro / nano diffraction grating structures, which enriches the visual effect of the metal micro foil, increases the aesthetics of anti-counterfeiting products, and greatly improves the user's choice.

[0035] 3. The present invention provides an anti-counterfeiting film material and its manufacturing method. The surface of the metal micro foil is provided with a wear-resistant layer, which can reduce the damage to the metal micro foil during the production and processing, protect the micro-nano diffraction grating structure on the surface of the first metal micro foil, and ensure the anti-counterfeiting effect of the metal micro foil. At the same time, the wear-resistant layer is transparent as a whole, which will not affect the light-changing effect of the micro-nano diffraction grating structure. Moreover, the material of the wear-resistant layer is an aluminum oxide coating or a silicon dioxide coating, which has good wear resistance.

[0036] 4. The present invention provides an anti-counterfeiting film material and its manufacturing method, wherein the shape of the first metal micro foil is one or more of the following: shield, arrow, or text, thereby further improving the anti-counterfeiting effect and aesthetics of the first metal micro foil. Attached Figure Description

[0037] The preferred embodiments will now be described in a clear and easy-to-understand manner, with reference to the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages, and implementation methods of this solution.

[0038] Figure 1 This is a top view of an anti-counterfeiting film material provided by the present invention;

[0039] Figure 2 This is a side view of an anti-counterfeiting film material provided by the present invention;

[0040] Figure 3 This is a structural diagram of the substrate of the present invention.

[0041] Figure 4 This is another structural diagram of the substrate of the present invention.

[0042] Explanation of icon numbers:

[0043] Anti-counterfeiting film material 100, metal micro foil 110, first metal micro foil 111, second metal micro foil 112, resin 120, substrate 130, wear-resistant layer 131. Detailed Implementation

[0044] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0045] To keep the drawings concise, only the parts relevant to the invention are shown schematically in each figure, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of components with the same structure or function is shown schematically, or only one is labeled. In this document, "one" can mean not only "only one" but also "more than one".

[0046] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0047] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0048] In one embodiment, see the accompanying drawings. Figure 1-4 The present invention provides a method for manufacturing an anti-counterfeiting film material, comprising:

[0049] Select substrate 130;

[0050] A metal foil with a micro-nano diffraction grating structure is fabricated on a substrate 130;

[0051] The substrate 130 and the metal foil are crushed into granules;

[0052] The particles made by crushing the substrate 130 and the metal foil are melted at high temperature, and the metal foil forms free metal micro foil 110 after melting.

[0053] The anti-counterfeiting film 100 is formed by extruding and calendering the substrate 130 and metal foil after high-temperature melting.

[0054] Furthermore, in one embodiment, a metal foil with a micro / nano diffraction grating structure is fabricated on the substrate 130, including the following specific steps:

[0055] Resin 120 is printed on substrate 130 using gravure printing technology;

[0056] Micro-nano diffraction grating structures were molded onto resin 120.

[0057] Metal plating is performed on the entire side of the substrate 130 where resin 120 is printed, to form a first metal foil and a second metal foil.

[0058] A substrate 130 is selected, and its melting point is lower than that of the resin 120. A metal foil with a micro / nano diffraction grating structure is fabricated on the substrate 130. First, resin 120 is printed on the substrate 130 using a gravure printing process. Before the resin 120 solidifies, a micro / nano diffraction grating structure is molded onto the resin 120. After the resin 120 solidifies, the entire side of the substrate 130 with the printed resin 120 is metal-plated to form a metal foil. The metal foil includes a first metal foil and a second metal foil. The first metal foil includes a first metal microfoil 111 and resin 120, and the second metal foil includes a second metal microfoil 112. For details, please refer to the appendix to the specification. Figure 4 Resin 120 is printed on substrate 130 using gravure printing. The resin 120 is spaced apart and metal is plated on substrate 130, so that a first metal micro foil 111 is formed on resin 120. Resin 120 and first metal micro foil 111 are first metal foil sheets. Correspondingly, a second metal micro foil 112 is formed at the intervals of resin 120. The second metal micro foil 112 is a second metal foil sheet.

[0059] It is worth noting that the gravure printing process prints resin onto the entire printing screen roller, then uses a squeegee to scrape off a portion of the resin 120, so that the resin 120 is spaced out, and then under greater pressure, the resin 120 on the printing screen roller is transferred to the substrate 130.

[0060] Furthermore, in one embodiment, the particles formed by crushing the substrate 130 and the metal foil are melted at high temperature, and the melted metal foil forms free metal micro foil 110, including the following specific steps:

[0061] Add particles of the same material as the substrate 130 to the particles made by crushing the substrate 130 and the metal foil;

[0062] The crushed particles and particles of the same material as the base material 130 are melted at high temperature;

[0063] After the metal foil is melted, it forms free metal micro foil 110.

[0064] Specifically, after the substrate 130 and the metal foil are pulverized, particles of the same material as the substrate 130 are added to the pulverized particles, followed by high-temperature melting. After the particles of the same material as the substrate 130, the substrate 130, and the resin 120 melt, the first metal foil melts to form a free first metal micro foil 111, and the second metal foil melts to form a free second metal micro foil 112. Finally, after extrusion, calendering, and other processes, an anti-counterfeiting film 100 is formed. It is worth noting that the resin 120 content is extremely small compared to the substrate 130, and has little impact on the structure and strength of the formed anti-counterfeiting film 100. Moreover, the melting point of the resin 120 is higher than that of the substrate 130. Therefore, during the high-temperature melting process of the substrate 130, the substrate 130 melts first, and the second metal foil attached to the substrate 130 disperses to form a free, powdery second metal micro foil 112. Correspondingly, when the substrate 130 melts, the resin 120 does not melt, allowing the first metal foil to remain intact without dispersing.

[0065] In one embodiment, after molding a micro / nano diffraction grating structure onto resin 120, this embodiment provides a method for forming a wear-resistant layer 131 on a metal micro foil 110, the specific steps of which include:

[0066] A wear-resistant layer 131 is formed by coating the entire side of the substrate 130 on which the resin 120 is printed.

[0067] Specifically, after molding the micro-nano diffraction grating structure onto the resin 120, a film is deposited on one side of the resin 120 printed on the substrate 130 to form a wear-resistant layer 131. The wear-resistant layer 131 is deposited on the substrate 130 and the resin 120.

[0068] Accordingly, after forming a wear-resistant layer 131 on the substrate 130 and the resin 120, a metal coating is applied to the entire side of the substrate 130 on which the resin 120 is printed to form a first metal foil and a second metal foil. Then, a coating is applied to the surface of the first metal foil and the second metal foil to form the wear-resistant layer 131.

[0069] In this embodiment, please refer to the accompanying drawings. Figure 3 First, a wear-resistant layer 131 is formed by coating the side of the substrate 130 on which the resin 120 is printed. Then, a metal coating is formed on the side of the substrate 130 on which the resin 120 is printed, forming a first metal foil and a second metal foil. Then, a coating is formed again on the surface of the first metal foil and the second metal foil to form the wear-resistant layer 131. The first metal foil at this time includes a first metal micro foil 111, resin 120 and wear-resistant layer 131, and the second metal foil includes a second metal micro foil 112 and wear-resistant layer 131.

[0070] Accordingly, when manufacturing the anti-counterfeiting film 100, after forming a micro-nano diffraction grating structure on the resin 120, the manufacturer can choose whether to deposit a wear-resistant layer 131 according to its own needs. If the wear-resistant layer 131 is not required, metal plating is directly performed on the side of the substrate 130 where the resin 120 is printed, forming a metal foil. If the wear-resistant layer 131 is required, after forming the micro-nano diffraction grating structure on the resin 120, the wear-resistant layer 131 can be deposited entirely on the side of the substrate 130 where the resin 120 is printed, followed by metal plating to form a first metal foil and a second metal foil. Then, the wear-resistant layer 131 is deposited on the surfaces of the first and second metal foils. In this case, the metal foil includes a first metal foil and a second metal foil. The first metal foil includes a first metal micro-foil 111, resin 120, and the wear-resistant layer 131, and the second metal foil includes a second metal micro-foil 112 and the wear-resistant layer 131. Accordingly, the wear-resistant layer 131 is made of a high-temperature resistant material, so that the wear-resistant layer 131 will not melt when the metal foil melts.

[0071] In one embodiment, an anti-counterfeiting film 100 is provided, which is manufactured using the manufacturing method provided in any of the above embodiments.

[0072] In one embodiment, see the accompanying drawings. Figure 1 , Figure 2 An anti-counterfeiting film material 100 is described, which has a certain anti-counterfeiting effect by setting a micro-nano diffraction grating structure on the surface of a first metal micro foil 111.

[0073] Specifically, the anti-counterfeiting film material 100 includes a metal micro foil 110, a resin 120, and an anti-counterfeiting film material body. The metal micro foil 110 and the resin 120 are distributed within the anti-counterfeiting film material body. The metal micro foil 110 includes a first metal micro foil 111 and a second metal micro foil 112. The surface of the first metal micro foil 111 is provided with a micro-nano diffraction grating structure. Since the micro-nano diffraction grating structure itself has anti-counterfeiting capabilities, the first metal micro foil 111 can improve the anti-counterfeiting effect of the anti-counterfeiting film material 100.

[0074] In this embodiment, by setting a micro-nano diffraction grating structure on the surface of the first metal micro foil 111, the anti-counterfeiting capability of the first metal micro foil 111 is improved, giving it characteristics such as being difficult to counterfeit. Simultaneously, the metal micro foil 110 can be applied to various anti-counterfeiting products, and can cooperate with other anti-counterfeiting technologies to further enhance the anti-counterfeiting effect, offering a wide range of applications and providing more choices for anti-counterfeiting products. Furthermore, the micro-nano diffraction grating structure exhibits specific colors at certain angles, improving the aesthetics of the metal micro foil 110 and enhancing the appearance of anti-counterfeiting products made with it, making it popular with consumers.

[0075] In one embodiment, the micro / nano diffraction grating structure includes at least one of a sinusoidal grating, a blazed grating, and a high-frequency zero-order diffraction grating.

[0076] It is worth noting that different types of micro / nano diffraction grating structures exhibit different light-changing effects. Specifically, sinusoidal grating structures with spatial frequencies set to 400 L / mm-2400 L / mm and grating angles ranging from +90° to -90° exhibit a dynamic rainbow light-changing effect; blazed gratings with spatial frequencies set to 10 L / mm-400 L / mm and grating angles ranging from +90° to -90°, with blaze angles less than 80°, exhibit a micro-mirror blazing white light effect; high-frequency zero-order diffraction gratings with spatial frequencies set to 2500 L / mm-3400 L / mm and grating angles ranging from +90° to -90°, after being coated with a high-refractive-index metal oxide film, can exhibit red and green light-changing effects under different reflected light angles. In practical applications, the micro-nano diffraction grating structure of the first metal micro foil 111 can be one or more combinations of sinusoidal gratings, blazed gratings and high-frequency zero-order diffraction gratings. Manufacturers can choose the micro-nano diffraction grating structure according to their own needs so that the first metal micro foil 111 can exhibit different light-changing effects. These will not be described in detail here, but are all within the protection scope of this invention.

[0077] In this embodiment, there are various micro-nano diffraction grating structures, and different types of micro-nano diffraction grating structures exhibit different light-changing effects. The combination of different types of micro-nano diffraction grating structures greatly enriches the light-changing effects of the first metal micro foil 111. Moreover, micro-nano diffraction gratings can also form patterns of different shapes, such as shields, locks, and text, enriching the user's choices. Users can select the first metal micro foil 111 with different light-changing effects according to their preferences.

[0078] Furthermore, the first metal micro foil 111 is shaped like a shield, an arrow, or text, or a combination of two or more of these shapes, further enhancing its aesthetic appeal. Correspondingly, the shape of the first metal micro foil 111 is not limited to shields, arrows, or text; it can also be other shapes, and the second metal micro foil 112 is in powder form.

[0079] Further, see the accompanying drawings in the instruction manual. Figure 3 This embodiment further describes the metal micro foil 110. Specifically, a wear-resistant layer 131 is also provided on the surface of the metal micro foil 110, and the wear-resistant layer 131 is provided on the surfaces of both the first metal micro foil 111 and the second metal micro foil 112. The wear-resistant layer 131 can reduce the wear on the metal micro foil 110 during production and use, thereby reducing the damage to the micro-nano diffraction grating structure on the surface of the metal micro foil 110, extending the service life of the card, and ensuring the anti-counterfeiting effect of the first metal micro foil 111. On the other hand, the wear-resistant layer 131 has an overall transparent structure, which can reduce the impact of the wear-resistant layer 131 on the micro-nano diffraction grating structure.

[0080] Preferably, the wear-resistant layer 131 is an aluminum oxide coating or a silicon dioxide coating. It is worth noting that, on the one hand, providing an aluminum oxide coating or a silicon dioxide coating on the surface of the metal micro foil 100 can reduce the damage to the micro-nano diffraction grating structure of the metal micro foil 100 during production and daily use.

[0081] It is worth noting that users can choose whether to set a wear-resistant layer 131 on the surface of the metal micro foil 110 according to their own needs. The first metal micro foil 111 can play an anti-counterfeiting role.

[0082] It is worth noting that the anti-counterfeiting film 100 has a wide range of applications and can be used in different types of anti-counterfeiting products. For example, the anti-counterfeiting film 100 can be used on certificates and cards. The anti-counterfeiting film 100 is placed on the certificate and card substrate, and the metal micro foil 110 is dispersed within the anti-counterfeiting film 100. The surface of the first metal micro foil 111 is provided with a micro-nano diffraction grating structure, thereby improving the anti-counterfeiting effect of the certificate and card.

[0083] It should be noted that the above embodiments can be freely combined as needed. The above description is only a preferred embodiment of the present invention. It should be pointed out that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A method for manufacturing an anti-counterfeiting film material, characterized in that, Includes the following steps: Select the substrate; Fabricating a metal foil with a micro / nano diffraction grating structure on a substrate includes the following steps: printing resin on the substrate using gravure printing; molding a micro / nano diffraction grating structure on the resin; metallizing the entire side of the substrate with the resin printed on it to form a first metal foil on the resin and a second metal foil on the substrate. The substrate and metal foil are crushed into granules; The particles made by crushing the substrate and metal foil are melted at high temperature. After the metal foil melts, it forms free metal micro foil. The second metal foil forms a free powdery second metal micro foil, while the first metal foil remains intact because the resin does not disperse. Anti-counterfeiting film is formed by extruding and calendering the substrate and metal foil after they have been melted at high temperature.

2. The method for manufacturing an anti-counterfeiting film material according to claim 1, characterized in that, Following the molding of the micro / nano diffraction grating structure onto the resin, the process further includes the following steps: A wear-resistant layer is formed by coating the entire side of the substrate where the resin is printed.

3. The method for manufacturing an anti-counterfeiting film material according to claim 2, characterized in that, After metallizing the entire side of the substrate with the resin printed on it to form a first metal foil and a second metal foil, the process further includes the following steps: A wear-resistant layer is formed by coating the surfaces of the first and second metal foils.

4. The method for manufacturing an anti-counterfeiting film material according to claim 1, characterized in that, The process of pulverizing a substrate and metal foil into particles, then melting them at high temperature to form free metal micro-foils, specifically includes the following steps: Add particles of the same material as the substrate to the granules made by crushing the substrate and metal foil; The crushed particles and particles of the same material as the base material are melted at high temperature; After the metal foil melts, it forms free metal micro foil.

5. An anti-counterfeiting film material, characterized in that, It is manufactured using the method described in any one of claims 1-4 for producing anti-counterfeiting film.

6. The anti-counterfeiting film material according to claim 5, characterized in that, The invention includes a metal micro foil, resin, and an anti-counterfeiting film body. The metal micro foil and the resin are distributed within the anti-counterfeiting film body. The metal micro foil includes a first metal micro foil and a second metal micro foil. The surface of the first metal micro foil is provided with a micro-nano diffraction grating structure, which is used to improve the anti-counterfeiting effect.

7. The anti-counterfeiting film material according to claim 6, characterized in that, It also includes a wear-resistant layer, which is disposed on the surface of the metal micro foil and has an overall transparent structure.

8. The anti-counterfeiting film material according to claim 7, characterized in that, The wear-resistant layer is an aluminum oxide coating or a silicon dioxide coating.

9. An anti-counterfeiting film material according to any one of claims 6-8, characterized in that, The first metal micro foil is shaped like a shield, an arrow, or text, or a combination of two or more shapes; the second metal micro foil is in powder form. and / or The micro-nano diffraction grating structure of the first metal micro foil is at least one of a sinusoidal grating, a blazed grating, and a high-frequency zero-order diffraction grating.

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