A method for peeling a printed product with a developed laser film and a printed product with a developed laser film

Abstract

This invention relates to the field of laser film technology, specifically to a peel-off developing laser film substrate and a peel-off developing laser film. The peel-off developing laser film substrate includes a substrate body and a peel-off developing laser film. The peel-off developing laser film comprises a surface carrier layer, a first adhesive layer, a first pattern layer, a second pattern layer, and a second adhesive layer, which are sequentially stacked and bonded together. The first pattern layer has a first pattern formed by a concave-convex structure, and the second pattern layer has a second pattern formed by a concave-convex structure. The first and second patterns are staggered and interlocked to form a flat area. The adhesive force between the first adhesive layer and the surface carrier layer and the first pattern layer is greater than the adhesive force between the first and second pattern layers. The adhesive force between the second adhesive layer and the second pattern layer is greater than the adhesive force between the first and second pattern layers. The second adhesive layer is adhered to the surface of the substrate.

Description

Technical Field

[0001] This invention relates to the field of laser film technology, and in particular to a peel-off developing laser film substrate and a peel-off developing laser film. Background Technology

[0002] Anti-counterfeiting laser film is a special laser film material used for anti-counterfeiting and security marking. It typically possesses unique optical effects and characteristics to prevent counterfeiting and duplication, thus protecting product intellectual property and brand value. Anti-counterfeiting laser films often feature unique laser patterns and effects, such as three-dimensional effects, iridescent sheen, and dynamic changes. These special laser effects are difficult to replicate, making it challenging for counterfeiters to create similar results.

[0003] As anti-counterfeiting technology continues to develop, the difficulty of cracking anti-counterfeiting laser films is increasing. However, current anti-counterfeiting laser films can be reused, and vulnerabilities still exist. For example, counterfeiters can peel off the anti-counterfeiting laser film that has been pasted on a genuine product and re-paste it onto a counterfeit product, thus achieving the purpose of counterfeiting without needing to crack or create the anti-counterfeiting laser film. Summary of the Invention

[0004] The technical problem to be solved by the embodiments of the present invention is to provide a peel-off developing laser film substrate and a peel-off developing laser film, so as to solve the problem that the anti-counterfeiting laser film in the prior art can be reused, but there are still anti-counterfeiting loopholes.

[0005] This invention discloses a peelable developing laser film substrate, comprising a substrate body and a peelable developing laser film. The peelable developing laser film comprises a surface carrier layer, a first adhesive layer, a first pattern layer, a second pattern layer, and a second adhesive layer, which are sequentially stacked and bonded together. The first pattern layer has a first pattern formed by a concave-convex structure, and the second pattern layer has a second pattern formed by a concave-convex structure. The first pattern and the second pattern are staggered and interlocked to form a flat area.

[0006] The adhesion between the first adhesive layer and the surface carrier layer and the first pattern layer is greater than the adhesion between the first pattern layer and the second pattern layer; the adhesion between the second adhesive layer and the second pattern layer is greater than the adhesion between the first pattern layer and the second pattern layer; the second adhesive layer is adhered to the surface of the substrate.

[0007] Optionally, the thickness of the surface carrier layer is 23–50 μm, the thickness of the first adhesive layer is 1–5 μm, and the thickness of the first pattern layer is 3–10 μm.

[0008] Optionally, the thickness of the second pattern layer is 1 to 10 μm, and the thickness of the second adhesive layer is 15 to 40 μm.

[0009] The present invention also discloses a peel-off imaging laser film, comprising a surface carrier layer, a first adhesive layer, a first pattern layer, a second pattern layer, a second adhesive layer and a bottom carrier layer, which are sequentially stacked and bonded together; the first pattern layer has a first pattern formed by a concave-convex structure, the second pattern layer has a second pattern formed by a concave-convex structure, and the first pattern and the second pattern are interlocked to form a flat area.

[0010] The adhesion between the first adhesive layer and the surface carrier layer and the first pattern layer is greater than the adhesion between the first pattern layer and the second pattern layer; the adhesion between the second adhesive layer and the second pattern layer is greater than the adhesion between the first pattern layer and the second pattern layer; the adhesion between the second adhesive layer and the bottom carrier layer is less than the adhesion between the first pattern layer and the second pattern layer.

[0011] Optionally, the dyne value of the first adhesive layer is 42 to 50.

[0012] Optionally, the dyne values ​​of the first pattern layer and the second pattern layer are 20 to 40.

[0013] Optionally, the thickness of the surface carrier layer is 23–50 μm, the thickness of the first adhesive layer is 1–5 μm, and the thickness of the first pattern layer is 3–10 μm.

[0014] Optionally, the thickness of the second pattern layer is 1 to 10 μm, and the thickness of the second adhesive layer is 15 to 40 μm.

[0015] Optionally, the surface carrier layer is a PET film, the first adhesive layer is an oil-based UV coating, and the first pattern layer is a UV film lamination layer.

[0016] Optionally, the second pattern layer is a UV coating, the second adhesive layer is an adhesive layer, and the bottom carrier layer is release paper.

[0017] Compared with the prior art, the beneficial effects of the peel-off developing laser film provided in this invention are as follows: the peel-off developing laser film substrate and the laser film of this invention have a first pattern layer and a second pattern layer, wherein the first pattern layer has a first pattern formed by a concave-convex structure, and the second pattern layer has a second pattern formed by a concave-convex structure, and the first pattern and the second pattern are mutually complementary and interlocked to form a flat area. Thus, when the peel-off developing laser film is used for the first time, after peeling off the bottom carrier layer and pasting the second adhesive layer onto the substrate, the first pattern layer and the second pattern are not separated. Because the first pattern and the second pattern are interlocked and interlocked to form a flat area, neither the first pattern nor the second pattern will be visible. If the developing laser film is peeled off and then peeled off again, the adhesion between the first adhesive layer and the surface carrier layer, and the first pattern layer, is greater than the adhesion between the first and second pattern layers. The adhesion between the second adhesive layer and the second pattern layer is also greater than the adhesion between the first and second pattern layers. As a result, the first and second pattern layers separate. In this case, the surface carrier layer, the first adhesive layer, and the first pattern layer are peeled off as a whole, while the second pattern layer and the second adhesive layer remain adhered to the substrate as a whole. Because the first and second patterns are separated, their individual patterns become visible due to their respective textures. In other words, the appearance of the first and second patterns indicates that the developing laser film has been peeled off, thus allowing identification of whether it was the first time it was applied. This prevents the laser film from being reused and avoids anti-counterfeiting loopholes. Attached Figure Description

[0018] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0019] Figure 1 This is a schematic diagram of peeling off the developing laser film according to an embodiment of the present invention;

[0020] Figure 2 This is another schematic diagram of peeling off the developing laser film according to an embodiment of the present invention;

[0021] Figure 3 This is another schematic diagram of peeling off the developing laser film according to an embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the composite partially hidden grating imaging laser film according to an embodiment of the present invention;

[0023] Figure 5 This is another schematic diagram of the composite partially hidden grating imaging laser film according to an embodiment of the present invention;

[0024] Figure 6 This is another schematic diagram of the composite partially hidden grating imaging laser film according to an embodiment of the present invention;

[0025] Figure 7 This is another schematic diagram of the composite partially hidden grating imaging laser film according to an embodiment of the present invention;

[0026] Figure 8 This is a schematic diagram of the image pattern area according to an embodiment of the present invention;

[0027] Figure 9 This is a schematic diagram of a grating sheet;

[0028] Figure 10 To place the grating sheet Figure 8 A schematic diagram on the display pattern area.

[0029] The labels for the attached figures are as follows:

[0030] 1. Surface carrier layer; 2. First adhesive layer; 3. First pattern layer; 31. First pattern; 32. Imaging pattern area; 33. Hidden pattern area; 34. Third pattern; 4. Second pattern layer; 41. Second pattern; 5. Second adhesive layer; 6. Underlying carrier layer; 7. Isolation layer. Detailed Implementation

[0031] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0032] This invention provides a method for peeling off a developing laser film, such as... Figures 1 to 3 As shown, the peel-off developing laser film includes a surface carrier layer 1, a first adhesive layer 2, a first pattern layer 3, a second pattern layer 4, a second adhesive layer 5, and a bottom carrier layer 6, which are sequentially stacked and bonded together. The first pattern layer 3 has a first pattern 31 formed by a concave-convex structure, and the second pattern layer 4 has a second pattern 41 formed by a concave-convex structure. The first pattern 31 and the second pattern 41 are interlocked to form a flat area.

[0033] The adhesion force between the first adhesive layer 2 and the surface carrier layer 1 and the first pattern layer 3 is greater than the adhesion force between the first pattern layer 3 and the second pattern layer 4; the adhesion force between the second adhesive layer 5 and the second pattern layer 4 is greater than the adhesion force between the first pattern layer 3 and the second pattern layer 4; the adhesion force between the second adhesive layer 5 and the bottom carrier layer 6 is less than the adhesion force between the first pattern layer 3 and the second pattern layer 4.

[0034] The peel-off developing laser film of the present invention has a first pattern layer 3 and a second pattern layer 4. The first pattern layer 3 has a first pattern 31 formed by a concave-convex structure, and the second pattern layer 4 has a second pattern 41 formed by a concave-convex structure. The first pattern 31 and the second pattern 41 are mutually complementary and interlock to form a flat area. Thus, when the peel-off developing laser film is used for the first time, after peeling off the bottom carrier layer 6 and attaching the second adhesive layer 5 to the substrate, the first pattern layer 3 and the second pattern 41 are not separated. Since the first pattern 31 and the second pattern 41 are staggered and interlocked to form a flat area, neither the first pattern 31 nor the second pattern 41 will be visible. If the developing laser film is peeled off and then peeled off again, the adhesion between the first adhesive layer 2 and the surface carrier layer 1, and the first pattern layer 3 is greater than the adhesion between the first pattern layer 3 and the second pattern layer 4; the adhesion between the second adhesive layer 5 and the second pattern layer 4 is greater than the adhesion between the first pattern layer 3 and the second pattern layer 4. As a result, the first pattern layer 3 and the second pattern layer 4 separate. At this point, the surface carrier layer 1, the first adhesive layer 2, and the first pattern layer 3 are peeled off as a whole, while the second pattern layer 4 and the second adhesive layer 5 remain adhered to the substrate as a whole. Furthermore, because the first pattern 31 and the second pattern 41 are separated, their respective patterns become visible due to their concave and convex structures. In other words, the appearance of the first pattern 31 and the second pattern 41 indicates that the developing laser film has been peeled off, thus allowing determination of whether the developing laser film was first applied. This prevents the laser film from being reused, thus avoiding anti-counterfeiting loopholes. For example, if a counterfeiter peels off the anti-counterfeiting laser film that has been pasted on the genuine product, the first pattern 31 and the second pattern 41 will appear, and the laser film will not be able to be pasted back onto the counterfeit product.

[0035] Specifically, such as Figure 1 and Figure 2 As shown, the first pattern 31 and the second pattern 41 are mutually complementary and interlocking. That is, the concave and convex structures of the first pattern 31 and the second pattern 41 are mutually complementary and interlocking. Their concave and convex structures are staggered and interlocked, so that when the first pattern layer 3 and the second pattern layer 4 are in a close-fitting state, the first pattern 31 and the second pattern 41 form a flat plane, and the first pattern 31 and the second pattern 41 are not visible. After they are separated, the first pattern 31 and the second pattern 41 will be visible. For example, the concave and convex structure of the first pattern 31 is "concave" and the concave and convex structure of the second pattern 41 is "convex". The "concave" and "convex" are mutually complementary and interlocking.

[0036] Specifically, the first pattern 31 and the second pattern 41 can be designed according to specific pattern requirements, and no specific limitations are imposed in this invention. In the specific preparation of the peelable and developing laser film of this invention, each layer is sequentially coated on the surface carrier layer 1. The first pattern layer 3 is coated and then molded to form a concave-convex structure, thereby molding the first pattern 31. After molding the first pattern 31 onto the first pattern layer 3, the second pattern layer 4 is coated. The film liquid of the second pattern layer 4 fills the concave areas in the first pattern 31, thereby forming the second pattern 41, which is mutually complementary to the first pattern 31.

[0037] like Figure 3 As shown, the adhesive force between the first adhesive layer 2 and the surface carrier layer 1 and the first pattern layer 3 is greater than the adhesive force between the first pattern layer 3 and the second pattern layer 4. This ensures that when the developing laser film is peeled off after its initial application, the first adhesive layer 2 can lift the first pattern layer 3 along with it, thus achieving separation between the first pattern layer 3 and the second pattern layer 4. Similarly, the adhesive force between the second adhesive layer 5 and the second pattern layer 4 is greater than the adhesive force between the first pattern layer 3 and the second pattern layer 4. This ensures that when the first adhesive layer 2 is peeled off from the surface carrier layer 1 and the first pattern layer 3, the second pattern layer 4 remains adhered to the second adhesive layer 5 and is not peeled off along with the first pattern layer 3, thus guaranteeing separation between the first pattern layer 3 and the second pattern layer 4. The adhesive force between the second adhesive layer 5 and the bottom carrier layer 6 is less than the adhesive force between the first pattern layer 3 and the second pattern layer 4. This ensures that when the developing laser film is peeled off for the first time, the bottom carrier layer 6 can be easily removed without the second pattern layer 4 being peeled off along with it, guaranteeing normal use of the developing laser film on the first attempt. During use, the user peels off the bottom carrier layer 6 to expose the second adhesive layer 5, and then attaches the second adhesive layer 5 to the substrate.

[0038] Specifically, the dyne value of the first adhesive layer 2 is 36–50. A dyne value between 36 and 50 indicates relatively high adhesive strength. This range of adhesive strength ensures a strong bond between the first adhesive layer 2 and the surface carrier layer 1 and the first pattern layer 3, thereby improving the anti-counterfeiting performance and security of the peel-off developing laser film. This means that the performance of the first adhesive layer 2 can be relatively easily controlled and adjusted during fabrication to meet product requirements, and stable and reliable results can be achieved in practical applications.

[0039] The first pattern layer 3 and the second pattern layer 4 have a dyne value of 20–30. A dyne value of 20–30 allows for relatively easy separation of the first pattern layer 3 and the second pattern layer 4 when the developing laser film is peeled off, while maintaining the required bonding strength. The thickness of the surface carrier layer 1 is 23–50 μm. The thickness of the first adhesive layer 2 is 1–5 μm. The thickness of the first pattern layer 3 is 3–10 μm. The thickness of the second pattern layer 4 is 1–10 μm. The thickness of the second adhesive layer 5 is 15–40 μm.

[0040] Specifically, the surface carrier layer 1 is a PET film, the first adhesive layer 2 is an oil-based UV coating, and the first pattern layer 3 is a UV film lamination layer. The second pattern layer 4 is a UV coating, the second adhesive layer 5 is an adhesive layer, and the bottom carrier layer 6 is release paper.

[0041] Furthermore, such as Figures 4 to 6 As shown, the first connecting layer includes a display pattern area 32 and a hidden pattern area 33. A first pattern 31 is disposed in the hidden pattern area 33, and a second pattern layer 4 is disposed corresponding to the hidden pattern area 33. The first pattern 31 and the second pattern 41 are interlocked to form a flat area. The display pattern area 32 has a third pattern 34 that can be displayed even when the first pattern 31 and the second pattern 41 are not separated. The first connecting layer of the laser film of the present invention also has a display pattern area 32. Since the display pattern area 32 has a third pattern 34 that can be displayed even when the first pattern 31 and the second pattern 41 are not separated, even when the laser film is unused or only used for the first time, the authenticity can be identified by the third pattern 34. This enables the laser film to perform a preliminary judgment on the authenticity of the corresponding technology or product before it is opened or damaged.

[0042] The display pattern area 32 can be produced without a pattern. Alternatively, the display pattern area 32 can be patterned, either through printing or molding to form the third pattern 34. For molding, the first connecting layer 3 pattern in the display pattern area 32 can be a standard holographic laser pattern during UV molding, or a special 3D grating stereoscopic holographic pattern can be molded. The 3D grating stereoscopic holographic pattern is designed using software to create a specific photolithographic pattern, which is then molded after being made into a holographic plate. The display pattern area 32 can be coated with a transparent aluminum layer to make the third pattern 34 visible.

[0043] like Figures 8 to 10As shown, when observing the finished product of the special 3D grating stereoscopic holographic pattern, a specific grating sheet needs to be used for observation to reveal the designed third pattern 34. Otherwise, the third pattern 34 hidden in the holographic fine lines cannot be observed. Therefore, in the solution of the present invention, the third pattern 34 is a pattern that appears when the grating sheet is covered at the first angle. The third pattern 34 will only appear when the grating sheet is covered at the first angle, and will not appear without the grating sheet or when the grating sheet is covered at other angles. Further, the image display pattern area 32 has a fourth pattern, and the fourth pattern is a pattern that appears when the grating sheet is covered at the second angle. The fourth pattern will only appear when the grating sheet is covered at the second angle, and will not appear without the grating sheet or when the grating sheet is covered at other angles. Furthermore, the image display pattern area 32 has a fifth pattern, and the fifth pattern is a pattern that appears when the grating sheet is covered at the third angle. The fifth pattern will only appear when the grating sheet is covered at the third angle, and will not appear without the grating sheet or when the grating sheet is covered at other angles. In this regard, reference can be made to Figures 8 to 10 As shown, Figure 8 is a schematic diagram of the image of the image display pattern area 32, Figure 9 is a schematic diagram of the grating sheet, Figure 10 is to place the grating sheet on Figure 4 the image of the image display pattern area 32. As Figure 10 shown, after the grating sheet is rotated to different corresponding set angles, the image of the image display pattern area 32 is displayed as set words or images such as "positive", "genuine", "OK" through the grating sheet. For example, "positive" is the third pattern 34, "genuine" is the fourth pattern, and "OK" is the fifth pattern.

[0044] Further, as Figure 7 shown, the composite partial hidden grating image display laser film further includes an isolation layer 7 provided between the second connection layer 4 and the second adhesive layer 5. The isolation layer 7 can separate the second adhesive layer from the image display pattern area 32 of the first connection layer, playing a role in protecting the image display pattern area 32 and preventing the second adhesive layer from damaging the pattern in the image display pattern area 32. Specifically, the isolation layer 7 can be a zinc sulfide layer.

[0045] The present invention also discloses a lifted image display laser film printed matter, including a printed matter body and a lifted image display laser film. The lifted image display laser film includes a surface carrier layer 1, a first adhesive layer 2, a first pattern layer 3, a second pattern layer 4, and a second adhesive layer 5 that are sequentially laminated and bonded; the first pattern layer 3 has a first pattern 31 formed by an uneven structure, the second pattern layer 4 has a second pattern 41 formed by an uneven structure, and the first pattern 31 and the second pattern 41 are staggered and fitted to form a flat area.

[0046] The adhesion force between the first adhesive layer 2 and the surface carrier layer 1 and the first pattern layer 3 is greater than the adhesion force between the first pattern layer 3 and the second pattern layer 4; the adhesion force between the second adhesive layer 5 and the second pattern layer 4 is greater than the adhesion force between the first pattern layer 3 and the second pattern layer 4. The second adhesive layer 5 is adhered to the surface of the substrate.

[0047] The substrate of this invention has a peel-off developing laser film attached to it. This peel-off developing laser film is the same as the aforementioned peel-off developing laser film after the underlying carrier layer 6 has been removed. Therefore, the peel-off developing laser film attached to the substrate has the same structure, performance, parameters, and technical effects as described above, except that it does not have the underlying carrier layer 6. These details will not be repeated here.

[0048] Specifically, the printed materials can be various packaging boxes, stationery and office supplies, ceramic products, plastic products, safety labels and seals, etc.

[0049] It should be understood that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them. Those skilled in the art can modify the technical solutions described in the above embodiments, or make equivalent substitutions for some of the technical features; and all such modifications and substitutions should fall within the protection scope of the appended claims of the present invention.

Claims

1. A type of printable substrate with a peel-off developing laser film, characterized in that, The product includes a substrate and a peelable developing laser film. The peelable developing laser film includes a surface carrier layer, a first adhesive layer, a first pattern layer, a second pattern layer, and a second adhesive layer that are sequentially stacked and bonded together. The first pattern layer has a first pattern formed by a concave-convex structure, and the second pattern layer has a second pattern formed by a concave-convex structure. The first pattern and the second pattern are staggered and interlocked to form a flat area. The adhesive force between the first adhesive layer and the surface carrier layer and the first pattern layer is greater than the adhesive force between the first pattern layer and the second pattern layer; the adhesive force between the second adhesive layer and the second pattern layer is greater than the adhesive force between the first pattern layer and the second pattern layer. The second adhesive layer is adhered to the surface of the substrate.

2. The printed substrate according to claim 1, characterized in that, The thickness of the surface carrier layer is 23–50 μm, the thickness of the first adhesive layer is 1–5 μm, and the thickness of the first pattern layer is 3–10 μm.

3. The printed substrate according to claim 2, characterized in that, The thickness of the second pattern layer is 3–10 μm, and the thickness of the second adhesive layer is 15–40 μm.

4. A method for peeling off a developing laser film, characterized in that, It includes a surface carrier layer, a first adhesive layer, a first pattern layer, a second pattern layer, a second adhesive layer, and a bottom carrier layer that are sequentially stacked and bonded together; the first pattern layer has a first pattern formed by a concave-convex structure, the second pattern layer has a second pattern formed by a concave-convex structure, and the first pattern and the second pattern are interlocked to form a flat area. The adhesive force between the first adhesive layer and the surface carrier layer and the first pattern layer is greater than the adhesive force between the first pattern layer and the second pattern layer; the adhesive force between the second adhesive layer and the second pattern layer is greater than the adhesive force between the first pattern layer and the second pattern layer; the adhesive force between the second adhesive layer and the bottom carrier layer is less than the adhesive force between the first pattern layer and the second pattern layer.

5. The peel-off developing laser film according to claim 4, characterized in that, The dyne value of the first adhesive layer is 42 to 50.

6. The peel-off developing laser film according to claim 4 or 5, characterized in that, The dyne values ​​of the first pattern layer and the second pattern layer are 20 to 30.

7. The peel-off developing laser film according to claim 4 or 5, characterized in that, The thickness of the surface carrier layer is 23–50 μm, the thickness of the first adhesive layer is 1–5 μm, and the thickness of the first pattern layer is 3–10 μm.

8. The peel-off developing laser film according to claim 7, characterized in that, The thickness of the second pattern layer is 3–10 μm, and the thickness of the second adhesive layer is 15–40 μm.

9. The peel-off developing laser film according to claim 4 or 5, characterized in that, The surface carrier layer is a PET film, the first adhesive layer is an oil-based UV coating, and the first pattern layer is a UV film lamination layer.

10. The peel-off developing laser film according to claim 9, characterized in that, The second pattern layer is a UV coating, the second adhesive layer is an adhesive layer, and the bottom carrier layer is release paper.

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