A multi-window security laminate and a collection

Abstract

A kind of multi-window anti-fake laminate, including first transparent material layer, first masking layer, matrix layer, second masking layer and second transparent material layer being arranged in sequence;One of first masking layer and second masking layer is provided with at least two first windows, and the other is provided with at least one second window;The center point of first window and the center point of second window are connected to form window center line, the plane where matrix layer is located is set as center plane, and the angle between any window center line and center plane forms window line angle;Matrix layer is provided with graphic information, anti-fake laminate has double-side observation visual angle, the outer surface of first transparent material layer forms first observation visual angle entrance matching first window, and the outer surface of second transparent material layer forms second observation visual angle entrance matching second window, the novel anti-fake technology is used in the utility model, the stepped anti-fake pattern effect of different depth is realized, and higher anti-fake level is reached.

Description

Technical Field

[0001] This utility model relates to anti-counterfeiting technology, and more particularly to a multi-window anti-counterfeiting laminate. Background Technology

[0002] Both card-type identification documents and card-type data pages are made by binding polymer sheets of different thicknesses together and then fusing them into a single unit through heating and pressing the top and bottom laminations. Different layers serve different functions. The outermost layers are protective layers that can support graphics, text, and lens structures on the laminations. Other layers are specifically designed to support printed or hot-stamped graphics, chips, and coils. The transparent window is an anti-counterfeiting feature of card-type identification documents, forming a transparent window on the opaque card body, allowing observation of anti-counterfeiting elements from both the front and back.

[0003] For example, Chinese patent CN2718036Y discloses a type of anti-counterfeiting paper with a transparent window, consisting of upper and lower paper sheets with corresponding holes. A thin film layer is placed between the two sheets, covering at least the holes to form a transparent window. The width of the transparent window and the film layer can be varied according to anti-counterfeiting needs, allowing the width of the security belt to be greater than the commonly known 4mm, facilitating the setting of various anti-counterfeiting marks as needed. Furthermore, this anti-counterfeiting paper has windows on both sides, making the setting of anti-counterfeiting marks more flexible and convenient. However, this anti-counterfeiting paper lacks an effective protective layer, and the technology performs poorly in terms of material stability, reducing the durability and reliability of the anti-counterfeiting paper. Due to size limitations, this anti-counterfeiting paper cannot support the loading of complex, multi-layered graphic information, thus failing to increase the difficulty of anti-counterfeiting and achieve a high level of anti-counterfeiting effect.

[0004] For example, Chinese patent CN109070621A discloses a security article and its manufacturing method that combine dynamic and static window security features. This technology mainly relies on lens arrangement and laser marking information to achieve advanced anti-counterfeiting effects. By constructing dynamic and static information such as lens arrangement and laser marking within the document body, the anti-counterfeiting performance of the security article is achieved. However, this technology requires filling the window with transparent material, which not only complicates the structure but also increases manufacturing costs. Furthermore, because this technology is relatively common, its anti-counterfeiting strength may not be as high as expected, posing a risk of being counterfeited. Similarly, this security article cannot support the loading of complex, multi-layered graphic and textual information, thus failing to increase the difficulty of anti-counterfeiting and achieve a high level of anti-counterfeiting effect.

[0005] For example, Chinese patent CN210285176U discloses a windowed composite packaging bag with anti-counterfeiting features. This packaging bag achieves both visualization and anti-counterfeiting functions through a three-layer composite structure consisting of a printed film layer, an intermediate layer, and a heat-sealing film layer. The transparent plastic films of the printed film layer and the heat-sealing film layer are combined with the non-transparent intermediate layer. A certain level of anti-counterfeiting capability is provided through a viewing window in the intermediate layer and an anti-counterfeiting mark printed on the lower surface of the transparent window. However, this structure has significant drawbacks: the layers are only bonded together with adhesive, which easily leads to delamination and poor stability; secondly, the thin overall structure limits its ability to load multi-layered graphic information, thus limiting its anti-counterfeiting performance to a general level. Similarly, Chinese patent CN210734923U discloses a packaging bag with a viewing window and anti-counterfeiting mark, which also suffers from similar technical defects.

[0006] In summary, the main technical challenges currently facing anti-counterfeiting design of certificates are concentrated in two aspects: First, over-reliance on single anti-counterfeiting technologies and a lack of comprehensive, multi-layered anti-counterfeiting measures make these methods easily crackable; second, the overall anti-counterfeiting level is too low, failing to effectively resist increasingly sophisticated counterfeiting techniques. These problems urgently require the development of new anti-counterfeiting technologies for certificates to achieve a higher level of security protection. Utility Model Content

[0007] In view of this, the present invention provides a multi-window anti-counterfeiting laminate in order to at least partially solve the above-mentioned technical problems.

[0008] On the one hand, this utility model provides a multi-window anti-counterfeiting laminate, including a first transparent material layer, a first masking layer, a matrix layer, a second masking layer and a second transparent material layer stacked in sequence;

[0009] One of the first masking layer and the second masking layer has at least two first windows, and the other has at least one second window; the line connecting the center point of the first window and the center point of the second window is set as the window center line, the plane where the matrix layer is located is set as the central plane, and the angle between the window center line and the central plane is set as an acute angle.

[0010] The matrix layer is provided with graphic information, and the anti-counterfeiting laminate has a dual-viewing angle. The outer surface of the first transparent material layer forms a first viewing angle entrance that matches the first window, and the outer surface of the second transparent material layer forms a second viewing angle entrance that matches the second window.

[0011] In some embodiments, the above-mentioned multi-window anti-counterfeiting laminate may also have the following characteristics:

[0012] The included angle of the window connection line is set to .

[0013] In some embodiments, the above-mentioned multi-window anti-counterfeiting laminate may also have the following characteristics:

[0014] The included angle of the window connection line is set to .

[0015] In some embodiments, the above-mentioned multi-window anti-counterfeiting laminate may also have the following characteristics:

[0016] At least one window in the first window and the second window is configured as an inclined hole, and the line connecting the centers of the windows along the inclined direction of the inclined hole is parallel to the inclined side of the inclined hole.

[0017] In some implementations, there are n matrix layers, where n ≥ 2.

[0018] In some embodiments, the above-mentioned multi-window anti-counterfeiting laminate may also have the following characteristics:

[0019] One of the first and second masking layers has a first window, and the other has two second windows; the line connecting the center point of the first window and one of the second windows is set as the first center line, and the line connecting the center point of the first window and the other of the second windows is set as the second center line.

[0020] And / or,

[0021] The observation screen at the first observation viewpoint entrance includes first graphic and textual information observed along the first center line and second graphic and textual information observed along the second center line; the observation screen at the second observation viewpoint entrance includes third graphic and textual information observed along the first center line and fourth graphic and textual information observed along the second center line.

[0022] In some embodiments, the above-mentioned multi-window anti-counterfeiting laminate may also have the following characteristics:

[0023] The first transparent material layer and / or the second transparent material layer are provided with a lens structure, a grating structure, a cloud-like structure, and / or raised lines.

[0024] In some embodiments, the above-mentioned multi-window anti-counterfeiting laminate may also have the following characteristics:

[0025] The lens structure includes multiple microlens protrusion units with different depths of field.

[0026] In some embodiments, the above-mentioned multi-window anti-counterfeiting laminate may also have the following characteristics:

[0027] The first transparent material layer and / or the second transparent material layer and / or the matrix layer are two or more layers in a structure, and the graphic information is set at a position corresponding to any one or more of the following areas:

[0028] The positions between layers of a structure with two or more layers, the positions between the first transparent material layer and the first masking layer, the positions between the second transparent material layer and the second masking layer, the side of the first transparent material layer away from the first masking layer, the side of the second transparent material layer away from the second masking layer, and the positions between any matrix layer and any adjacent masking layer.

[0029] In some embodiments, the above-mentioned multi-window anti-counterfeiting laminate may also have the following characteristics:

[0030] The graphic information includes any one or more of the following:

[0031] Printed graphics, hot stamping graphics, optically variable graphics, holographic graphics, embedded coils, embedded chips, miniature graphics, nano-engraved graphics, and digital watermark graphics.

[0032] This utility model also provides a set, which may be a certificate, a security, an anti-counterfeiting label, or an anti-counterfeiting packaging.

[0033] Therefore, compared with existing related technologies, this utility model provides a brand-new anti-counterfeiting technology solution through multi-window anti-counterfeiting observation technology, which achieves a stepped anti-counterfeiting pattern effect with different depths and achieves a higher level of anti-counterfeiting; and, through the optimized setting of matrix layer, masking layer and transparent material layer, it provides technical support for simplifying the manufacturing process of anti-counterfeiting documents.

[0034] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. Other advantages of this invention can be realized and obtained by means of the solutions described in the description and the accompanying drawings. Attached Figure Description

[0035] The accompanying drawings are used to provide an understanding of the technical solution of this utility model and constitute a part of the specification. They are used together with the embodiments of this utility model to explain the technical solution of this utility model, and do not constitute a limitation on the technical solution of this utility model.

[0036] Figure 1 A schematic diagram of the structure of an anti-counterfeiting laminate provided in an embodiment of this utility model;

[0037] Figure 2 A schematic diagram of another anti-counterfeiting laminate provided in this embodiment of the present invention;

[0038] Figure 3 This is a schematic diagram of another anti-counterfeiting laminate provided in an embodiment of the present invention.

[0039] Figure 4 A schematic diagram of another anti-counterfeiting laminate provided in this embodiment of the present invention;

[0040] Figure 5 A schematic diagram of another anti-counterfeiting laminate provided in this embodiment of the present invention;

[0041] Figure 6 A schematic diagram of another anti-counterfeiting laminate provided in this embodiment of the present invention;

[0042] Illustration:

[0043] 1-First transparent material layer, 2-First masking layer, 3-Matrix layer, 4-Second masking layer, 5-Second transparent material layer, 6-Lens structure, 7-Graphic information, 21-First window, 41-Second window. Detailed Implementation

[0044] This utility model describes several embodiments, but these descriptions are exemplary and not limiting, and it will be apparent to those skilled in the art that many more embodiments and implementations are possible within the scope of the embodiments described herein. Although many possible combinations of features are shown in the drawings and discussed in the detailed description, many other combinations of the disclosed features are also possible. Unless specifically limited, any feature or element of any embodiment may be used in combination with, or may replace, any feature or element of any other embodiment.

[0045] This utility model includes and contemplates combinations of features and elements known to those skilled in the art. The embodiments, features, and elements disclosed in this utility model can also be combined with any conventional features or elements to form a unique utility model as defined by the claims. Any feature or element of any embodiment can also be combined with features or elements from other utility model solutions to form another unique utility model as defined by the claims. Therefore, it should be understood that any feature shown and / or discussed in this utility model can be implemented individually or in any suitable combination. Therefore, the embodiments are not limited except by the limitations imposed by the appended claims and their equivalents. Furthermore, various modifications and changes can be made within the scope of the appended claims.

[0046] Furthermore, in describing representative embodiments, the specification may have presented the method and / or process as a specific sequence of steps. However, the method or process should not be limited to the specific order of steps described in this invention, to the extent that the method or process does not depend on the specific order of steps described in this invention. As will be understood by those skilled in the art, other sequences of steps are also possible. Therefore, the specific order of steps set forth in the specification should not be construed as a limitation of the claims. Moreover, the claims concerning the method and / or process should not be limited to performing the steps in the written order, and those skilled in the art will readily understand that these orders can be varied and still remain within the spirit and scope of the embodiments of this invention.

[0047] Combination Figure 1 , Figure 4 As shown, an exemplary embodiment provides a multi-window anti-counterfeiting laminate, including a first transparent material layer 1, a first masking layer 2, a matrix layer 3, a second masking layer 4, and a second transparent material layer 5 stacked sequentially; one of the first masking layer 2 and the second masking layer 4 has at least two first windows 21, and the other has at least one second window 41; the line connecting the center point of the first window 21 and the center point of the second window 41 is set as the window center line, the plane where the matrix layer 3 is located is set as the central plane, and the angle between the window center line and the central plane is set as an acute angle or an obtuse angle.

[0048] like Figure 1 As shown, in an exemplary embodiment of a multi-window anti-counterfeiting laminate, the first masking layer 2 has two first windows 21, and one of the second masking layers 4 has one second window 41. The line connecting the center point of one of the first windows 21 and the center point of the second window 41 is set as the first center line, and the line connecting the center point of the other first window 21 and the center point of the second window 41 is set as the second center line. In specific operation, the observation screen at the first observation view entrance includes first graphic information observed along the first center line and second graphic information observed along the second center line; the observation screen at the second observation view entrance includes third graphic information observed along the first center line and fourth graphic information observed along the second center line.

[0049] like Figure 4As shown, in an exemplary embodiment of a multi-window anti-counterfeiting laminate, a first masking layer 2 has a first window 21, and one of the second masking layers 4 has two second windows 41. The line connecting the center point of one of the first windows 21 and the center point of the second window 41 is set as the first center line, and the line connecting the center point of the other first window 21 and the center point of the second window 41 is set as the second center line. In specific operation, the observation screen at the first observation viewpoint entrance includes first graphic information observed along the first center line and second graphic information observed along the second center line; the observation screen at the second observation viewpoint entrance includes third graphic information observed along the first center line and fourth graphic information observed along the second center line.

[0050] In other words, the first observation viewpoint on the outer surface of the first transparent material layer 1 supports the observation of two different anti-counterfeiting graphic information, such as observing the second window 41 on the left through the first window 21, or observing the second window 41 on the right through the first window 21; correspondingly, the second observation viewpoint on the outer surface of the second transparent material layer 5 also supports the observation of two different anti-counterfeiting graphic information, such as observing through the second window 41 on the left, or observing through the second window 41 on the right. The above embodiment, through its dual-sided multi-window observation viewpoints, can display different graphic information. This design of displaying different content from different perspectives effectively prevents counterfeiters from obtaining all graphic information from a single angle, thereby improving the multi-layered protection performance of the anti-counterfeiting laminate.

[0051] The core innovation of this embodiment lies in the use of multi-window anti-counterfeiting observation technology and the setting of acute angles in the window connection lines. The combination of the two significantly improves the anti-counterfeiting performance.

[0052] One of the innovations is the angle of the window connection. The preferred angle setting is between 30° and 150°, such as 30°, 45°, 60°, 120°, 135°, and 150°. These multi-angle options ensure that the graphic information observed from different viewing angles presents different angles and effects. This design enhances anti-counterfeiting effectiveness because it makes the changes in anti-counterfeiting information appear more complex depending on the viewing angle when viewed from a single perspective. Furthermore, angle restrictions effectively prevent counterfeiters from extracting or copying graphic information through perpendicular viewing angles, thus increasing the technical difficulty of anti-counterfeiting. By using different angles, the anti-counterfeiting pattern can present unique effects from different angles.

[0053] In some implementations... Symmetrical settings, for example It is 30°. It is 150°; It is 45°. It is 135°; It is 60°. It is 120°.

[0054] In some implementations... Asymmetric settings. For example, It is 30°. It is 135°; It is 45°. It is 120°; It is 60°. The angle is 135°. This angle setting is related to the window arrangement. Adjusting the observation angle can further enhance the anti-counterfeiting effect.

[0055] The second innovation, the multi-window anti-counterfeiting observation technology, involves a first masking layer 2 having at least two first windows 21, and a second masking layer 4 having at least one second window 41. The matrix layer 3 displays graphic information 7. Through the dual-view observation of the anti-counterfeiting laminate, the outer surface of the first transparent material layer 1 forms multiple first view entrances matching the multiple first windows 21, and the outer surface of the second transparent material layer 5 forms a second view entrance matching the second window 41. This dual-view observation feature, by displaying different graphic information in the two side windows, enhances the security of the anti-counterfeiting laminate.

[0056] In one exemplary embodiment of the multi-window anti-counterfeiting laminate, the first masking layer 2 has n first windows 21, and the second masking layer 4 has 2n second windows 41; that is, the number of windows in the second masking layer 4 is always twice the number of windows in the first masking layer 2. The multi-window anti-counterfeiting laminate with this configuration has a superior anti-counterfeiting effect.

[0057] In one exemplary embodiment of the multi-window anti-counterfeiting laminate, the first masking layer 2 has 2n first windows 21, and the second masking layer 4 has n second windows 41; that is, the number of windows in the first masking layer 2 is always twice the number of windows in the second masking layer 4. The multi-window anti-counterfeiting laminate with this configuration has a superior anti-counterfeiting effect.

[0058] In other words, the two first observation view entrances on the outer surface of the first transparent material layer 1 support the observation of two different anti-counterfeiting graphic information, such as observation through the first window 21 on the left or observation through the first window 21 on the right; the one second observation view entrance on the outer surface of the second transparent material layer 5 can also provide the observation of two different anti-counterfeiting graphic information, such as observation through the second window 41 on the left or observation through the second window 41 on the right. Through the observation perspective of multiple windows on both sides, different graphic information can be displayed. This design of displaying different content from different perspectives effectively prevents counterfeiters from obtaining all graphic information from a single angle, thereby improving the multi-layered protection performance of the anti-counterfeiting laminate.

[0059] In one exemplary embodiment of the multi-window anti-counterfeiting laminate, at least one of the first window 21 and the second window 41 is configured as an inclined hole, with the center line of the windows along the inclined direction of the inclined hole parallel to the hypotenuse of the inclined hole. This inclined hole design is another core innovation of the anti-counterfeiting laminate. The inclined hole makes the center line of the windows parallel to the hypotenuse of the hole, thereby changing the effect of the graphic information when viewed through the window. After setting the inclined hole, the observer will see graphic information with specific inclined features from different angles, which helps to provide a richer visual effect. For example, the direction, contrast, or transparency of the pattern may differ at different viewing angles, making the anti-counterfeiting features more complex. The setting of the inclined hole not only improves the visual effect of the anti-counterfeiting pattern but also effectively increases the difficulty for counterfeiters to replicate these features. During the counterfeiting process, counterfeiters not only need to match the graphic content but also must accurately reproduce the inclination and viewing angle changes of the pattern, which places extremely high demands on the replication technology. Therefore, the introduction of the inclined hole effectively enhances the security of the anti-counterfeiting laminate.

[0060] like Figure 2 As shown, in an exemplary embodiment of the multi-window anti-counterfeiting laminate, the first masking layer 2 has two first windows 21 and the second masking layer 4 has one second window 41; the first window 21 on the left is set as an inclined hole, and the line connecting the center of the first window 21 on the left and the center of the second window 41 is parallel to the inclined side of the inclined hole.

[0061] like Figure 3 As shown, in an exemplary embodiment of the multi-window anti-counterfeiting laminate, the first masking layer 2 has two first windows 21 and the second masking layer 4 has one second window 41; the first window 21 and the second window 41 on the left are both set as inclined holes, the inclined side of the first window 21 on the left is parallel to the inclined side of the second window 41, and the line connecting the center of the first window 21 on the left and the center of the second window 41 on the left is also parallel to the inclined side of the inclined hole.

[0062] like Figure 5As shown, in an exemplary embodiment of a multi-window anti-counterfeiting laminate, the first masking layer 2 has one first window 21 and the second masking layer 4 has two second windows 41; the first window 21 is configured as an inclined hole, and the line connecting the center of the left second window 41 and the center of the first window 21 is parallel to the inclined side of the inclined hole.

[0063] like Figure 6 As shown, in an exemplary embodiment of the multi-window anti-counterfeiting laminate, the first masking layer 2 has one first window 21 and the second masking layer 4 has two second windows 41; both the first window 21 and the left second window 41 are set as inclined holes, the inclined side of the first window 21 is parallel to the inclined side of the left second window 41, and the line connecting the center of the first window 21 and the center of the left second window 41 is also parallel to the inclined side of the inclined hole.

[0064] Those skilled in the art can select different tilting hole settings according to actual conditions, thereby meeting the application scenarios with different anti-counterfeiting level requirements.

[0065] In one exemplary embodiment of the multi-window anti-counterfeiting laminate, the opening shapes of the first window 21 and the second window 41 can be selected according to the complexity of the anti-counterfeiting requirements to meet the needs of different anti-counterfeiting levels. The opening shapes can be circular, square, diamond-shaped, or irregularly shaped to meet different anti-counterfeiting level requirements. Circular holes are suitable for low to medium levels of anti-counterfeiting, offering simple processing and low cost, but their anti-counterfeiting capability is relatively weak; square holes provide a more regular visual effect and are suitable for medium-level anti-counterfeiting; diamond-shaped and irregularly shaped holes offer higher complexity and anti-counterfeiting effects, suitable for high-level anti-counterfeiting requirements. The diversity of irregularly shaped hole designs makes them difficult to counterfeit, especially suitable for high-security applications.

[0066] Correspondingly, to meet the requirements of different anti-counterfeiting levels, the shape of the slanted hole can also be selected as round, square, diamond, or irregular. Round slanted holes are preferred because they are simple to process, low in cost, and effectively improve anti-counterfeiting performance. In contrast, square and diamond slanted holes increase visual complexity and anti-counterfeiting strength, but their processes are more complex and costly. Irregularly shaped slanted holes offer the highest anti-counterfeiting performance and are suitable for applications with extremely high anti-counterfeiting requirements, increasing the difficulty of counterfeiting.

[0067] Regarding the relationship between the thickness of the first masking layer 2 and the aperture of the first window 21, different combinations of masking layer thickness and aperture can be selected. Utilizing the relationship between a small aperture and the thickness of the masking layer to increase production precision requirements can provide higher anti-counterfeiting capabilities.

[0068] In some embodiments, a lens structure, grating structure, cloud-like structure, and / or simple raised lines are provided on the outer or inner side of the first transparent material layer 1 and / or the first transparent material layer 1. When a grating structure is selected, there will be a switching effect of light blocking and light transmission when the image is shaken. Combined with the corresponding graphic information, dynamic pattern switching can be achieved. The cloud-like structure and raised lines have certain raised or recessed structures, which will refract, reflect, block, and transmit light to a certain extent. The above-mentioned different structures can be matched with graphics and text of different depths according to the transmission situation. In particular, the placement of grating structures, cloud-like structures, and / or simple raised lines at the positions corresponding to the first window 21 and / or the second window 41 makes the depth of field of the pattern change even more, presenting a certain depth effect, improving anti-counterfeiting performance, producing dynamic effects in some patterns, or improving aesthetics.

[0069] In some embodiments, the lens structure includes multiple microlens protrusions with different depths of field. By providing multiple microlens protrusions with different depths of field, the anti-counterfeiting laminate can display multi-layered graphic and textual information. On the one hand, the microlens protrusions with different depths of field allow multiple graphic and textual information to be displayed simultaneously on the same transparent material layer, with each type of information appearing under specific viewing angles or lighting conditions, thereby greatly increasing the security and complexity of the information. On the other hand, the microlens protrusions with different depths of field also make the multi-layered graphic and textual information on the transparent material layer clearly visible. The design of microlens protrusions with different depths of field not only improves the anti-counterfeiting level but also greatly increases the difficulty of counterfeiting.

[0070] In some embodiments, the first transparent material layer 1 and / or the second transparent material layer 5 and / or the matrix layer 3 are two or more layers. The graphic information is set at positions corresponding to any one or more of the following areas: the positions between the layers of the two or more layers, the positions between the first transparent material layer 1 and the first masking layer 2, the positions between the second transparent material layer 5 and the second masking layer 4, the side of the first transparent material layer 1 away from the first masking layer 2, the side of the second transparent material layer 5 away from the second masking layer 4, and the positions between any matrix layer 3 and any adjacent masking layer. By combining various different settings, and combining the different material properties of the first transparent material layer 1 and the second transparent material layer 5, as well as the different material properties of the first masking layer 2 and the second masking layer 4, it is possible to achieve a stepped anti-counterfeiting pattern effect of various depths, and to achieve a higher level of anti-counterfeiting technology effect.

[0071] An exemplary embodiment of the anti-counterfeiting laminate incorporates various graphic and textual information technologies, giving it excellent protective effects and technological advantages in the anti-counterfeiting field. The graphic and textual information includes any one or more of the following: printed graphics, hot stamping graphics, optically variable graphics, holographic graphics, embedded coils, embedded chips, micrographics, nano-engraved graphics, and digital watermark graphics. The integration of these technologies provides multi-layered and multi-dimensional protection for the anti-counterfeiting laminate, effectively improving security and reducing the difficulty of counterfeiting.

[0072] For example, printed and hot-stamped graphics provide visible physical security features, facilitating visual verification. Optically variable and holographic technologies display different visual effects by altering the viewing angle or lighting conditions, increasing the complexity of counterfeiting. Embedded coils and chips enhance security electronically, allowing anti-counterfeiting laminates to interact with electronic devices for more advanced verification. Microprinting and nano-engraving utilize extremely high printing precision, only identifiable under magnification, significantly raising the technological barrier. Digital watermarking adds a layer of security—identifiable only by specialized equipment—by embedding hidden information within the graphics. The combined application of these technologies not only significantly improves the anti-counterfeiting level of anti-counterfeiting laminates but also makes the verification process more rigorous and complex. Each technology is introduced to ensure that anti-counterfeiting laminates provide adequate protection against various counterfeiting risks, ensuring secure use by the end user. This highly integrated anti-counterfeiting technology solution is suitable for applications requiring extremely high security, such as the protection of bank cards and other important documents.

[0073] As will be understood by those skilled in the art, all or some of the steps, systems, and devices disclosed above, and their functional modules / units, can be implemented as software, firmware, hardware, or suitable combinations thereof. In hardware implementations, the division between functional modules / units mentioned in the above description does not necessarily correspond to the division of physical components; for example, a physical component may have multiple functions, or a function or step may be performed collaboratively by several physical components.

Claims

1. A multi-window anti-counterfeiting laminate, characterized in that, It includes a first transparent material layer, a first masking layer, a matrix layer, a second masking layer, and a second transparent material layer stacked in sequence; One of the first masking layer and the second masking layer has at least two first windows, and the other has at least one second window; the line connecting the center point of the first window and the center point of the second window is set as the window center line, the plane where the matrix layer is located is set as the central plane, and any of the window center lines and the central plane form an angle between the window line and the central plane. The matrix layer is provided with graphic information, and the anti-counterfeiting laminate has a dual-viewing angle. The outer surface of the first transparent material layer forms a first viewing angle entrance that matches the first window, and the outer surface of the second transparent material layer forms a second viewing angle entrance that matches the second window.

2. The multi-window anti-counterfeiting laminate according to claim 1, characterized in that, The included angle of the window connection line is set within the range of 30° to 150°.

3. The multi-window anti-counterfeiting laminate according to claim 1, characterized in that, The included angle of the window connection line is set to 30°~60° or 120°~150°; And / or, The angles between the window connections can be set symmetrically or asymmetrically.

4. The multi-window anti-counterfeiting laminate according to claim 1, characterized in that, At least one window in the first window and the second window is configured as an inclined hole, and the line connecting the centers of the windows along the inclined direction of the inclined hole is parallel to the inclined side of the inclined hole.

5. The multi-window anti-counterfeiting laminate according to any one of claims 1-4, characterized in that, One of the first and second masking layers has two first windows, and the other has one second window; the line connecting the center point of one of the first windows and the center point of the second window is set as the first center line, and the line connecting the center point of the other first window and the center point of the second window is set as the second center line; The observation screen at the first observation viewpoint entrance includes first graphic and textual information observed along the first center line and second graphic and textual information observed along the second center line; And / or, The observation screen at the second observation perspective entrance includes third graphic information observed along the first center line and fourth graphic information observed along the second center line.

6. The multi-window anti-counterfeiting laminate according to any one of claims 1-4, characterized in that, The first transparent material layer and / or the second transparent material layer are provided with a lens structure, a grating structure, a cloud-like structure, and / or raised lines.

7. The multi-window anti-counterfeiting laminate according to claim 6, characterized in that, The lens structure includes multiple microlens protrusion units with different depths of field.

8. The multi-window anti-counterfeiting laminate according to any one of claims 1-4 and 7, characterized in that, The first transparent material layer and / or the second transparent material layer and / or the matrix layer are two or more layers in a structure, and the graphic information is set at a position corresponding to any one or more of the following areas: The positions between layers of a structure with two or more layers, the positions between the first transparent material layer and the first masking layer, the positions between the second transparent material layer and the second masking layer, the side of the first transparent material layer away from the first masking layer, the side of the second transparent material layer away from the second masking layer, and the positions between any matrix layer and any adjacent masking layer.

9. The multi-window anti-counterfeiting laminate according to claim 8, characterized in that, The graphic information includes any one or more of the following: Printed graphics, hot stamping graphics, optically variable graphics, holographic graphics, embedded coils, embedded chips, miniature graphics, nano-engraved graphics, and digital watermark graphics.

10. A set, characterized in that, The multi-window anti-counterfeiting laminate, as described in claims 1-9, may include documents, securities, anti-counterfeiting labels, or anti-counterfeiting packaging.

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