CN219885971U - Laser encryption anti-counterfeiting film reproduced by point light source - Google Patents
Laser encryption anti-counterfeiting film reproduced by point light source Download PDFInfo
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- CN219885971U CN219885971U CN202320979800.7U CN202320979800U CN219885971U CN 219885971 U CN219885971 U CN 219885971U CN 202320979800 U CN202320979800 U CN 202320979800U CN 219885971 U CN219885971 U CN 219885971U
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- 239000010410 layer Substances 0.000 claims abstract description 113
- 229910052751 metal Inorganic materials 0.000 claims abstract description 24
- 239000002184 metal Substances 0.000 claims abstract description 24
- 239000000758 substrate Substances 0.000 claims abstract description 20
- 239000012790 adhesive layer Substances 0.000 claims abstract description 16
- 238000003384 imaging method Methods 0.000 claims abstract description 9
- KCTAWXVAICEBSD-UHFFFAOYSA-N prop-2-enoyloxy prop-2-eneperoxoate Chemical compound C=CC(=O)OOOC(=O)C=C KCTAWXVAICEBSD-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000002985 plastic film Substances 0.000 claims abstract description 4
- 229920003023 plastic Polymers 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 7
- 230000003287 optical effect Effects 0.000 claims description 7
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 5
- 238000001259 photo etching Methods 0.000 claims description 3
- 238000001771 vacuum deposition Methods 0.000 claims description 3
- 238000005530 etching Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 17
- 230000000007 visual effect Effects 0.000 abstract description 12
- 238000013461 design Methods 0.000 abstract description 3
- 238000005286 illumination Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 10
- 239000002585 base Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000008020 evaporation Effects 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 229920002799 BoPET Polymers 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 2
- 241000208125 Nicotiana Species 0.000 description 2
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010292 electrical insulation Methods 0.000 description 2
- 238000010329 laser etching Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 229920002120 photoresistant polymer Polymers 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 235000014101 wine Nutrition 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001093 holography Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Abstract
The utility model provides a laser encryption anti-counterfeiting film reproduced by a point light source, which comprises a substrate layer, wherein the substrate layer is a transparent plastic film and is used for bearing and protecting an information layer from being damaged; the information layer is coated on the surface of the substrate layer, and comprises an epoxy acrylate layer coated on the surface of the substrate layer, and a relief structure is printed on the surface of the epoxy acrylate layer; the metal film layer is evaporated on the surface of the information layer and is used for reverse diffraction imaging; an adhesive layer coated on the surface of the metal film layer; and the release layer is adhered to the surface of the adhesive layer and is used for protecting the adhesive layer. The laser encryption anti-counterfeiting film reproduced by the point light source has the advantages of simple structure, reasonable design and convenient use, and when the point light source is used for illumination and viewing, decrypted image information can be seen to be submerged below the bottom of the film layer and synchronously move along with the movement of the light source, so that the laser encryption anti-counterfeiting film has a stronger visual impact effect, and the authenticity of the public can be rapidly, accurately and conveniently identified.
Description
Technical Field
The utility model relates to the technical field of anti-counterfeiting, in particular to a laser encryption anti-counterfeiting film reproduced by a point light source.
Background
With the continuous development of technology, a large number of fake and inferior products appear in the market, and the situation seriously damages the rights and interests of consumers and brings great economic loss to regular enterprises. Accordingly, various industries begin to employ anti-counterfeiting techniques to ensure the authenticity and quality of products and to prevent intellectual property rights from being infringed. The anti-counterfeiting technology can prevent the product from being counterfeited or copied by adding special marks, bar codes, chips and the like, so that the safety and the credibility of the product are improved.
Although modern anti-counterfeiting technology has been developed to a high level, there are still some problems. For example, the traditional anti-counterfeiting technology is easy to imitate by counterfeiters, and has weak anti-counterfeiting function; some security tags have high costs, which may increase the production costs of the product and ultimately lead to an increase in the price of the product; or the public has poor anti-counterfeiting effect, and the common public is not easy to identify.
Along with the development of commodity society, the anti-counterfeiting technology is continuously improved, the counterfeiting difficulty and the copying cost of counterfeiters are increased, meanwhile, the public can rapidly, accurately and conveniently identify the authenticity of the anti-counterfeiting label, and the anti-counterfeiting label is an urgent problem to be solved in the current anti-counterfeiting label.
In the prior art, chinese patent publication No. CN202929651U discloses a laser holographic transfer anti-counterfeiting card, which comprises a card body and a laser holographic layer, wherein a laser encryption layer, a character micro layer, an photochemical engraving layer, a color-changing ink layer, an identical different image layer or a combination thereof is arranged on the laser holographic layer. The utility model has the beneficial effects that the anti-counterfeiting technology of the label field is combined with various applications such as laser holography, laser encryption, word miniaturization, photochemical engraving, color-changing ink, parity heteromorphic image and the like, so that the appearance of the card is more attractive, and the anti-counterfeiting function of the card is enhanced together with data encryption. However, the anti-counterfeiting card has a complex structure, various anti-counterfeiting technologies such as word miniaturization, photochemical engraving, color-changing ink, parity heteromorphic images and the like are needed, the manufacturing cost is high, the anti-counterfeiting visual impact effect cannot be enhanced, and the public cannot rapidly, accurately and conveniently identify the authenticity.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides the laser encryption anti-counterfeiting film reproduced by the point light source, when the point light source is used for illumination and viewing, decrypted image information is seen to be submerged below the bottom of the film layer and synchronously moves along with the movement of the light source, so that the laser encryption anti-counterfeiting film has a stronger visual impact effect, and the authenticity of the public can be rapidly, accurately and conveniently identified.
The utility model provides a laser encryption anti-counterfeiting film reproduced by a point light source, which comprises a substrate layer, wherein the substrate layer is a transparent plastic film and is used for bearing and protecting an information layer from being damaged; the information layer is coated on the surface of the substrate layer, and comprises an epoxy acrylate layer coated on the surface of the substrate layer, and a relief structure is printed on the surface of the epoxy acrylate layer; the metal film layer is evaporated on the surface of the information layer and is used for reverse diffraction imaging; an adhesive layer coated on the surface of the metal film layer; and a release layer adhered to the surface of the adhesive layer, wherein the release layer is used for protecting the adhesive layer and facilitating the peeling of the film layer to adhere the film layer to a commodity.
In the technical scheme, the relief structure is printed on the surface of the information layer, the metal film layer is evaporated on the surface of the information layer in a matching way, and the relief structure image encrypted on the surface of the information layer can be reproduced when the common point light source is used for irradiation in actual use through reverse diffraction imaging of the metal film layer. The visually reproduced relief structure image is submerged below the transparent substrate layer, and the depth of the relief structure image submerged can be set during the image encryption process. When the light source is moved, the submerged reproduction image can be seen to synchronously move along with the light source, the reproduction image can synchronously move along with the movement of the light source in a large range (within the range of the whole film and the width of the film is not limited), and the light source and the image are in a photocopy shape, so that the method has a strong visual impact effect, and can be used for rapidly, accurately and conveniently identifying the authenticity of the public.
Preferably, the substrate layer is a transparent PET or OPP film, and the transparent PET or OPP film is easy to process, has good creep resistance, fatigue resistance, abrasion resistance, toughness, good electrical insulation performance and is little affected by temperature.
Preferably, the relief structure is calculated and encrypted by an information optical theory, further information redundancy processing is carried out on the encrypted information, an encrypted gray scale image is generated, and the encrypted gray scale image is etched and copied into a master plate through photoetching equipment to be transferred. In actual production, the relief structure is based on an information optical theory, the wavefront of an optical wave is modulated to obtain wavefront phase information, then the wavefront information is subjected to further information redundancy processing, the redundancy of the information is enlarged, the processed information is converted into a 256 gray-scale image, the 256 gray-scale image is recorded on the surface of a photoresist medium in a laser etching mode, and finally the information on the medium is transferred onto a modified epoxy acrylic acid coating in a mould pressing mode to form an information layer. Thus, the characteristic information is ensured not to be forged or tampered, and good visual impact effect is achieved.
Preferably, the line width of the relief structure is less than or equal to 15 μm, and the structure depth is less than or equal to 1 μm. The linewidth and depth of the relief structure are not too large, otherwise, the relief structure cannot be clearly reproduced in a three-dimensional mode, and the visual impact effect is further affected.
Preferably, the metal film layer is evaporated on the surface of the information layer by a vacuum coating method, and the thickness range of the metal film layer is as followsThe evaporated metal material is preferably an aluminum material. The effect of the metal film layer is very important, and even and compact evaporation is required on the surface of the information layer, so that a good reverse diffraction imaging effect can be achieved, and a strong visual impact effect can be achieved when the point light source irradiates.
Preferably, the adhesive layer is pressure-sensitive adhesive, and in actual operation, the laser encryption anti-counterfeiting film reproduced by the point light source can be directly attached to the commodity through the pressure-sensitive adhesive layer only by tearing off the release layer, so that the use is convenient.
The laser encryption anti-counterfeiting film reproduced by the point light source has the beneficial effects that: the laser encryption anti-counterfeiting film reproduced by the point light source has the advantages of simple structure, reasonable design and convenient use, a relief structure is printed on the surface of the information layer, the metal film layer on the surface of the information layer is matched with evaporation, and the relief structure image encrypted on the surface of the information layer can be reproduced when the common point light source irradiates in actual use through reverse diffraction imaging of the metal film layer. The visually reproduced relief structure image is submerged below the transparent substrate layer, and the depth of the relief structure image submerged can be set during the image encryption process. When the light source is moved, the submerged reproduction image can be seen to synchronously move along with the light source, the reproduction image can synchronously move along with the movement of the light source in a large range (within the range of the whole film and the width of the film is not limited), and the light source and the image are in a photocopy shape, so that the method has a strong visual impact effect, and can be used for rapidly, accurately and conveniently identifying the authenticity of the public. And can be combined with other traditional anti-counterfeiting technologies to realize multiple anti-counterfeiting performance, is difficult to copy and imitate, is low in cost and durable, and can be applied to anti-counterfeiting of tobacco and wines.
Drawings
Fig. 1 is a schematic view of the layered structure of the present utility model.
Fig. 2 is a schematic plan view of a surface relief structure of an information layer according to the present utility model.
FIG. 3 is a schematic representation of the effectiveness of the security feature of the present utility model.
In the figure: 11. a substrate layer; 12. an information layer; 13. a metal film layer; 14. an adhesive layer; 15. and (5) a release layer.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments obtained by those skilled in the art without making any inventive effort are within the scope of the present utility model.
Examples: a laser encryption anti-counterfeiting film reproduced by a point light source.
Referring to fig. 1 to 3, a laser encryption anti-counterfeit film reproduced by a point light source includes:
the base material layer 11, the base material layer 11 is transparent PET film, and transparent PET film is easy to process, has good creep resistance, fatigue resistance, rub resistance, toughness in addition, and electrical insulation property is good, receives the temperature influence little, and the base material layer 11 is used for bearing and protecting information layer 12 not destroyed.
The information layer 12 is coated on the surface of the substrate layer 11, the information layer 12 comprises an epoxy acrylate layer coated on the surface of the substrate layer 11, a relief structure is printed on the surface of the epoxy acrylate layer, the line width of the relief structure is less than or equal to 15 μm, and the structure depth is less than or equal to 1 μm. The linewidth and depth of the relief structure are not too large, otherwise, the relief structure cannot be clearly reproduced in a three-dimensional mode, and the visual impact effect is further affected. The relief structure is formed by calculating encryption by an information optical theory, performing further information redundancy processing on the encrypted information, generating an encrypted gray scale image, and performing etching and reproduction to form a master plate through photoetching equipment. In actual production, the relief structure is based on the information optical theory, the wavefront of the optical wave is modulated to obtain wavefront phase information, then the wavefront information is subjected to further information redundancy processing, the redundancy of the information is enlarged, the processed information is converted into 256 gray-scale patterns, the 256 gray-scale patterns are recorded on the surface of a photoresist medium in a laser etching mode, and finally the information on the medium is transferred onto a modified epoxy acrylic acid coating in a mould pressing mode to form an information layer 12, so that the characteristic information is prevented from being forged or tampered, and a good visual impact effect is achieved.
And a metal film layer 13 evaporated on the surface of the information layer 12, wherein the metal film layer 13 is used for reverse diffraction imaging. The metal film layer 13 is evaporated on the surface of the information layer 12 by a vacuum coating method, and the thickness range of the metal film layer 13 is as followsThe evaporated metal material is preferably an aluminum material. The metal film layer 13 is very important, and needs to be uniformly and tightly evaporated on the surface of the information layer 12, so that a good reverse diffraction imaging effect can be achieved, and a strong visual impact effect can be achieved when the point light source irradiates.
And the adhesive layer 14 is coated on the surface of the metal film layer 13, and the adhesive layer 14 is a pressure sensitive adhesive and plays a role of adhering the multilayer film and the release layer 15.
The release layer 15 is adhered to the surface of the adhesive layer 14, the release layer 15 is used for protecting the adhesive layer 14, and in actual operation, the laser encryption anti-counterfeiting film reproduced by the point light source can be directly adhered to a commodity through the pressure-sensitive adhesive layer 14 only by tearing off the release layer 15, so that the use is convenient.
Referring to fig. 3, the laser encryption anti-counterfeiting film reproduced by the point light source has the following characteristic effects: when illuminated with a normal point-diverging light source 1, an encrypted image 4 can be reproduced. Visually (3 represents the viewer of the eye), the reproduced image 4 is submerged under the film layer 2, and the depth of the submerged image 4 can be set during the image encryption process. When the light source 1 is moved, the latent reproduced image 4 can be seen to move synchronously with the light source.
The laser encryption anti-counterfeiting film reproduced by the point light source has the advantages of simple structure, reasonable design and convenient use, the relief structure is printed on the surface of the information layer 12, the metal film layer 13 is matched with the evaporation plating on the surface of the information layer 12, and the relief structure image encrypted on the surface of the information layer can be reproduced when the common point light source is used for radiating in actual use through reverse diffraction imaging of the metal film layer 13. The visually reproduced relief structure image is submerged below the transparent substrate layer, when the light source is moved, the submerged reproduced image can be seen to synchronously move along with the light source, and the reproduced image can synchronously move along with the movement of the light source in a large range (within the range of the whole film and the breadth size of the film is not limited), so that the light source and the image are in a photo-random shape, and the transparent substrate layer has a strong visual impact effect, and enables the public to rapidly, accurately and conveniently identify the authenticity of the transparent substrate layer.
The laser encryption anti-counterfeiting film reproduced by the point light source takes a plastic film as a base material, is produced in a roll-to-roll mode, can be quickly adhered to the surface of a commodity by using a device, has acid and alkali resistance, temperature resistance and novel technology, can be combined with other traditional anti-counterfeiting technologies to realize multiple anti-counterfeiting performance, is difficult to copy and imitate, is low in cost and durable, and can be applied to anti-counterfeiting of tobacco and wines.
The foregoing is a preferred embodiment of the present utility model, but the present utility model should not be limited to the embodiment and the disclosure of the drawings, so that the equivalents and modifications can be made without departing from the spirit of the disclosure.
Claims (6)
1. A laser encryption anti-counterfeiting film reproduced by a point light source, which is characterized by comprising:
the base material layer is a transparent plastic film and is used for bearing and protecting the information layer from being damaged;
the information layer is coated on the surface of the substrate layer, and comprises an epoxy acrylate layer coated on the surface of the substrate layer, and a relief structure is printed on the surface of the epoxy acrylate layer;
the metal film layer is evaporated on the surface of the information layer and is used for reverse diffraction imaging;
an adhesive layer coated on the surface of the metal film layer; and
and the release layer is adhered to the surface of the adhesive layer, is used for protecting the adhesive layer and is convenient for stripping the film layer to adhere the film layer to a commodity.
2. The laser encryption anti-counterfeiting film reproduced by the point light source according to claim 1, wherein: the substrate layer is a transparent PET or OPP film.
3. The laser encryption anti-counterfeiting film reproduced by the point light source according to claim 1, wherein: the relief structure is formed by calculating encryption by an information optical theory, performing further information redundancy processing on the encrypted information, generating an encrypted gray scale image, and performing etching and reproduction to form a master plate through photoetching equipment.
4. A laser encryption anti-counterfeiting film reproduced by a point light source according to claim 3, wherein: the line width of the relief structure is less than or equal to 15 mu m, and the structure depth is less than or equal to 1 mu m.
5. The laser encryption anti-counterfeiting film reproduced by the point light source according to claim 1, wherein: the metal film layer is evaporated on the surface of the information layer by a vacuum coating method, and the thickness range of the metal film layer is as follows
6. The laser encryption anti-counterfeiting film reproduced by the point light source according to claim 1, wherein: the adhesive layer is a pressure sensitive adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320979800.7U CN219885971U (en) | 2023-04-26 | 2023-04-26 | Laser encryption anti-counterfeiting film reproduced by point light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320979800.7U CN219885971U (en) | 2023-04-26 | 2023-04-26 | Laser encryption anti-counterfeiting film reproduced by point light source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219885971U true CN219885971U (en) | 2023-10-24 |
Family
ID=88404235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320979800.7U Active CN219885971U (en) | 2023-04-26 | 2023-04-26 | Laser encryption anti-counterfeiting film reproduced by point light source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219885971U (en) |
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2023
- 2023-04-26 CN CN202320979800.7U patent/CN219885971U/en active Active
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