CN110908265A - Structure for enhancing endorsement image effect, anti-counterfeiting certificate card and endorsement method - Google Patents
Structure for enhancing endorsement image effect, anti-counterfeiting certificate card and endorsement method Download PDFInfo
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- CN110908265A CN110908265A CN201911328475.2A CN201911328475A CN110908265A CN 110908265 A CN110908265 A CN 110908265A CN 201911328475 A CN201911328475 A CN 201911328475A CN 110908265 A CN110908265 A CN 110908265A
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/0005—Adaptation of holography to specific applications
- G03H1/0011—Adaptation of holography to specific applications for security or authentication
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/02—Details of features involved during the holographic process; Replication of holograms without interference recording
- G03H1/0252—Laminate comprising a hologram layer
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/0005—Adaptation of holography to specific applications
- G03H1/0011—Adaptation of holography to specific applications for security or authentication
- G03H2001/0027—Being copy-protected against fraudulent replication, e.g. by layering a filter rejecting laser lines
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Credit Cards Or The Like (AREA)
Abstract
本发明提供一种增强签注图像效果的结构，其可以使签注信息呈现效果更加清晰，且证卡复印后签注信息的复印图像清晰完整。其包括：作为支撑结构的基层，用于激光签注信息、承载签注图像的激光刻蚀层设置在基层一侧，激光刻蚀层远离基层的一侧设置复合表层，复合表层包括压印了全息微纳结构的结构支撑层；与签注图像区域产生重叠的全息微纳结构使用光栅制成，光栅周期为200 nm~750nm，线宽为50 nm~200nm，槽型深度为100 nm~160nm；复合表层还包括介质镀膜层，在全息微纳结构所在的结构面上填充透明且折射率＞1.8的氧化物膜构成介质镀膜层，其厚度为10nm~400nm，对800nm~1100nm波段的透光率达≥20%。同时，本发明还公开了基于增强签注图像效果的结构做成的防伪证卡以及签注方法。
The invention provides a structure for enhancing the effect of the endorsement image, which can make the rendering effect of endorsement information clearer, and the copy image of the endorsement information after the card is copied is clear and complete. It includes: as the base layer of the supporting structure, the laser etching layer used for laser endorsement information and bearing the endorsement image is arranged on one side of the base layer, and the side of the laser etching layer away from the base layer is provided with a composite surface layer, and the composite surface layer includes embossed holographic microscopic layers. The structural support layer of the nanostructure; the holographic micro-nanostructure overlapping with the endorsement image area is made of grating, the grating period is 200nm~750nm, the line width is 50nm~200nm, and the groove depth is 100nm~160nm; composite surface layer It also includes a dielectric coating layer, which is filled with a transparent oxide film with a refractive index > 1.8 on the structural surface where the holographic micro-nano structure is located to form a dielectric coating layer, the thickness of which is 10nm~400nm, and the transmittance for the 800nm~1100nm band reaches ≥ 20%. At the same time, the invention also discloses an anti-counterfeiting card and an endorsement method based on the structure of enhancing the image effect of endorsement.
Description
Technical Field
The invention relates to the technical field of card and certificate anti-counterfeiting, in particular to a structure for enhancing the effect of an endorsement image, an anti-counterfeiting certificate card and an endorsement method.
Background
In the present society, various card-type documents represented by second-generation identification cards are widely used in the fields of identification authentication, quick payment, access control management and the like. In the card making process of the card type certificate, an important step is to sign personalized information of a certificate holder on the surface of the card by printing, printing or etching and other modes, wherein the personalized information comprises text information of the certificate holder such as name, date of birth, address and sex and image information of a face image, a signature and the like, and the information forms the signing information of the card type certificate; in the process of making the card by using the laser printing endorsement equipment, the endorsement is completed by endorseing the endorsement layout on the surface of the card-type card through modes such as laser printing and the like. The laser printing is to convert the personalized information into lattice laser beam, to axially scan and expose the photosensitive drum in the electronic development system via the scanning rotating mirror, to develop, transfer, fix, eliminate electricity and clean to realize color image.
However, the integrated information on the surface of the anti-counterfeiting certificate card has an anti-counterfeiting image for the anti-counterfeiting function of the certificate card in addition to the personalized information. The existing anti-counterfeiting images are mostly anti-counterfeiting through local transparent holographic anti-counterfeiting patterns, and the local holographic patterns are usually embedded in the certificate card to realize anti-counterfeiting; however, the intersection of the holographic image and the personalized information endorsement area affects the definition and the recognizability of the endorsement information; especially, in the whole scanning or copying process of the certificate card, the print of the holographic image has partial residue, which affects the definition, the aesthetic degree and the legibility of the endorsement information copy image of the certificate card.
Disclosure of Invention
In order to solve the problem that the holographic image has adverse effect on the identification and copying of the endorsement information of the anti-counterfeiting certificate card in the prior art, the invention provides a structure for enhancing the effect of the endorsement image, which can enable the display effect of the endorsement information to be clearer and enable the copied image of the endorsement information to be clear and complete after the certificate card is copied. Meanwhile, the invention also discloses an anti-counterfeiting certificate card made based on the structure for enhancing the endorsement image effect and an endorsement method for enhancing the endorsement image effect of the anti-counterfeiting certificate card.
The technical scheme of the invention is as follows: a structure to enhance the effect of endorsement images, comprising: the base layer as a supporting structure is provided with a laser etching layer for laser endorsement information and bearing endorsement images at one side of the base layer, and is characterized in that:
a composite surface layer is arranged on one side, away from the base layer, of the laser etching layer, and the composite surface layer comprises a structure supporting layer imprinted with a holographic micro-nano structure;
the holographic micro-nano structure overlapped with the endorsement image area is made of a grating, the grating period is 200 nm-750 nm, the line width is 50 nm-200 nm, and the groove depth is 100 nm-160 nm;
the composite surface layer further comprises a medium coating layer, wherein a transparent oxide film with the refractive index larger than 1.8 is filled on the structural surface where the holographic micro-nano structure is located to form the medium coating layer, the thickness of the medium coating layer is 10 nm-400 nm, and the light transmittance to the 800 nm-1100 nm wave band is larger than or equal to 20%.
It is further characterized in that:
the structure supporting layer is formed by curing a macromolecular compound coating containing carbonate chain links, the thickness of the structure supporting layer is 1-10 mu m, and the light transmittance to a wave band of 800 nm-1100 nm is not less than 50%;
the laser etching layer is a high-flexibility special film made of polycarbonate or PETG, the thickness of the laser etching layer is 50-300 mu m, and the absorption rate of the functional film to the 800-1100nm wave band is not less than 50%;
the composite surface layer is arranged on the medium coating layer and is a protective layer formed by curing a high molecular compound coating containing carbonate chain links, the thickness of the protective layer is 0.5-20 mu m, and the light transmittance to the 800-1100nm wave band is not less than 50%;
the composite surface layer further comprises a bearing substrate layer arranged between the structure supporting layer and the laser etching layer, the bearing substrate layer is made of the same material as the laser etching layer, the thickness of the bearing substrate layer is not less than 50 mu m, and the light transmittance of the bearing substrate layer to the 800 nm-1100 nm wave band is not less than 50%;
the laser etching device is characterized in that a white light reflecting layer is arranged on one side, adjacent to the laser etching layer, of the base layer, the material of the light reflecting layer is the same as that of the laser etching layer, the thickness of the light reflecting layer is not less than 50 mu m, the reflectivity of the light reflecting layer to the wave band of 800 nm-1100 nm is not less than 70%, and the light transmittance is not more than 10%.
The utility model provides an anti-fake certificate card that structure that reinforcing endorsement image effect was made which characterized in that:
the laser etching layer and the composite surface layer are symmetrically arranged on two sides of the base layer respectively to form the anti-counterfeiting certificate card which can be endorsed on two sides.
The utility model provides an anti-fake certificate card that structure that reinforcing endorsement image effect was made which characterized in that:
the laser etching layer and the composite surface layer are sequentially arranged on one side of the base layer, the base layer is arranged on the other side of the base layer, and the base layer comprises a toughness structure made of polycarbonate or PETG (polyethylene terephthalate glycol) to form the anti-counterfeiting certificate card capable of being signed and annotated on one side.
An endorsement method of a structure for enhancing an endorsement image effect, comprising: when the laser endorsement is carried out on the laser etching layer of the anti-counterfeiting certificate card, the optical characteristics of the endorsement laser comprise: the optical wave band is 980 nm-1100 nm, and the incident light angle is-45 degrees.
It is further characterized in that:
when laser endorsement is carried out on a laser etching layer of the anti-counterfeiting card, after a laser device outputs a light source and a scanning galvanometer component deflects a light path and focuses a scene, a focus light spot is scanned on a composite structure thin film layer, the diameter of the light spot is 5 mu m-50 mu m, and images and characters are printed.
According to the structure for enhancing the endorsement image effect, the color change effect formed by the nano-grating contained in the holographic image made of the grating is realized, the holographic image can be observed only in the direction of reflected light through the color change effect formed by the grating of the structure, the print of the holographic image cannot be remained during scanning and copying, and the image formed by the endorsement information after copying is clear and complete; by controlling the thickness of the medium coating layer, the optical path difference of the light beams reflected by the outer surface and the inner surface of the oxide film is odd times of half wavelength, destructive interference is generated, and a user can clearly see the endorsement information when the user penetrates through the medium coating layer; based on the grating structure in the technical scheme of the invention, laser with an optical wave band of 980 nm-1100 nm is used, so that the endorsement image can be accurately etched through the composite optical film without interference, diffraction, reflection and absorption, and the endorsement information presentation effect is further improved; the endorsement operation is carried out through the endorsement laser with the light spot diameter of 5 mu m-50 mu m, a bitmap image with the depth of more than or equal to 400DPI is displayed, and the clarity and the readability of the endorsement image information are further ensured.
Drawings
FIG. 1 is a schematic diagram of a structure for enhancing the effect of endorsement images in accordance with the present invention;
FIG. 2 is a schematic diagram of a laser incident angle in a laser etching method;
FIG. 3 shows the transmittance of the composite surface layer and the dielectric coating layer according to the present invention;
fig. 4 is a graph showing the light absorption of a laser-etched layer according to an embodiment of the present invention.
Detailed Description
As shown in fig. 1, the structure for enhancing the endorsement image effect of the invention is used as a base layer of a support structure, a laser etching layer 6 for laser endorsement information and bearing the endorsement image is arranged on one side of the base layer, a composite surface layer is arranged on one side of the laser etching layer 6 far away from the base layer, and the composite surface layer comprises a structure support layer 4 pressed with a holographic micro-nano structure 3; the holographic micro-nano structure overlapped with the endorsement image area is made of a dual-channel grating, the grating period is 200 nm-750 nm, the line width is 50 nm-200 nm, and the groove depth is 100 nm-160 nm; the composite surface layer also comprises a medium coating layer 2, wherein a transparent oxide film with the refractive index larger than 1.8 is filled on the structural surface of the holographic micro-nano structure 3 to form the medium coating layer 2, the thickness of the medium coating layer is 10 nm-400 nm, and the light transmittance to the 800 nm-1100 nm wave band is larger than or equal to 20%; according to the technical scheme, the grating structure enables near ultraviolet light, visible light and near infrared light with the spectral wave band of 380 nm-800 nm to be reflected in different directions, so that an anti-counterfeiting image formed by the anti-counterfeiting holographic micro-nano structure has a gorgeous effect.
The structural support layer 4 is coated with a polymer compound containing carbonate linkages, such as: the UV coating is formed by curing after photo-curing and/or thermosetting, the thickness of the UV coating is 1-10 mu m, and the light transmittance to the 800 nm-1100 nm wave band is more than or equal to 50%;
the laser etching layer 6 is a high-flexibility special film made of polycarbonate or PETG, the thickness of the laser etching layer is 50-300 mu m, and the absorption rate of the functional film to the 800-1100nm wave band is not less than 50%;
the composite surface layer further comprises a bearing substrate layer 5 arranged between the structure supporting layer 4 and the laser etching layer 6, the bearing substrate layer 5 is made of the same material as the laser etching layer 6, the thickness of the bearing substrate layer 5 is not less than 50 mu m, and the light transmittance of the bearing substrate layer 5 to the 800 nm-1100 nm wave band is not less than 50%; the bearing substrate layer 5 is used as a structural layer for protecting the laser etching layer 6, and due to the communicated materials, a very large binding force can be generated in the process of hot press molding in the use process, so that the anti-counterfeiting certificate card layer is firmly bound, and when the anti-counterfeiting certificate card layer is bent, the flexible and elastic structural layer can protect the laser etching layer, so that the probability that a laser structure on the relatively fragile laser etching layer is damaged due to bending and the like in the use process is reduced; the thickness of the bearing substrate layer 5 is set to be more than or equal to 50 mu m, so that the thin film layer has larger surface tension and is not easy to curl, the structure is better maintained, and meanwhile, production faults caused by static electricity can be reduced in the production process;
a white light reflecting layer 7 is arranged on one side, adjacent to the laser etching layer 6, of the base layer, the material of the light reflecting layer 7 is the same as that of the laser etching layer 6, the thickness of the light reflecting layer 7 is not less than 50 mu m, and the reflectivity of the light reflecting layer to the wave band of 800 nm-1100 nm is not less than 70%; the reflective layer is arranged in the laser etching and user using processes, so that the incident light is reflected, and the endorsement effect and the imaging effect of the endorsement image are improved;
the composite surface layer is further arranged on the medium coating layer 2 and is formed by solidifying a macromolecular compound coating containing carbonate chain links, such as a UV coating, after photo-solidification and/or thermal solidification, a protective layer 1 is formed, the thickness of the protective layer 1 is 0.5 mu m-20 mu m, and the light transmittance to the wave band of 800 nm-1100 nm is larger than or equal to 50%.
In the embodiment of the invention, the structure of the anti-counterfeiting certificate card made based on the structure for enhancing the endorsement image effect comprises the following components: the chip-based optical film comprises a protective layer 1, a medium coating layer 2, a holographic micro-nano structure 3, a supporting layer 4, a bearing substrate layer 5, a laser etching layer 6, a reflecting layer 7 and a core layer 8 for arranging a range card chip, wherein the bearing substrate layer 5, the laser etching layer 6, the reflecting layer 7 and the core layer 8 are made of polycarbonate or PETG, the protective layer 1, the holographic micro-nano structure 3 and the supporting layer 4 are made of UV (ultraviolet) paint containing an affinity polycarbonate raw material through curing, and the medium coating layer 2 is an oxide film; when the anti-counterfeiting card is processed and formed through the heating and cold pressing processing procedures, the structural layers are combined at a molecular level, the formed anti-counterfeiting card is durable in explanation, and due to the material composition, the physical change of the structural layers caused by the processing procedures can not be caused, and even after the anti-counterfeiting card is processed and formed, the light transmittance and the light reflectance of each structural layer can be maintained, so that the clear imaging of the endorsement image can be ensured.
By utilizing the technical scheme of the invention, the anti-counterfeiting certificate card which can be endorsed on one side can be made, the laser etching layer and the composite surface layer are sequentially arranged on one side of the base layer, the base layer is arranged on the other side of the base layer away from the laser etching layer, and the base layer comprises the following materials: a flexible structure made of polycarbonate or PETG; the laser etching layer 6 and the composite surface layer can be symmetrically arranged on two sides of the base layer respectively to form the anti-counterfeiting certificate card which can be endorsed on two sides.
An endorsement method for enhancing the endorsement image effect of an anti-counterfeiting certificate card is characterized by comprising the following steps: when the laser endorsement is carried out on the laser etching layer of the anti-counterfeiting certificate card, the optical characteristics of the endorsement laser comprise: the optical wave band is 980 nm-1100 nm, the incident light angle is-45 degrees, and the specific structure is shown in figure 2; when laser endorsement is carried out on a laser etching layer of the anti-counterfeiting card, after a laser outputs a light source, and after a scanning galvanometer component deflects a light path and focuses a scene, a focus light spot is scanned on a composite structure thin film layer, the diameter of the light spot is 5-50 mu m, and images and characters are printed; endorsement is carried out through laser with the light spot diameter of 5-50 mu m, a bitmap image with the DPI or more can be presented, the effect is fine and smooth, no obvious lines exist, and endorsement image information can be presented to a user more clearly; the laser used for endorsement uses existing lasers such as: carbon dioxide gas lasers, YAG lasers, solid lasers, semiconductor lasers and the like can be realized, and lasers with the emission band of 980 nm-1100 nm can be realized.
According to the technical scheme, a composite surface layer is formed by a protective layer 1, a medium coating layer 2, a holographic micro-nano structure 3, a supporting layer 4 and a bearing substrate layer 5, the optical path difference generated by light beams reflected by the outer surface and the inner surface of the film of light injected into the film is odd-number times by controlling the thickness and the light transmittance of each structural layer in the composite surface layer, the interference effect of the film material is eliminated, and range images and endorsement images penetrating through the composite surface can be clearly displayed to a user; meanwhile, a multilayer composite film optical system is constructed, ultraviolet light, visible light and infrared light beams are transmitted and reflected on each interface for multiple times, high-brightness holographic effect is achieved, infrared laser of 980 nm-1100 nm can penetrate through the system, laser equipment is enabled to accurately etch endorsement information, and the endorsement information is accurately displayed to a user.
In FIG. 3, the curve 1 represents the light transmittance of the composite skin layer. Curve # 2 represents the transmittance of the UV/thermal cured coating. The abscissa represents the wavelength of incident light, the ordinate represents transmittance, and it can be observed from the 1# curve that the transmittance reaches 16.7% at 860-1100 nm. Through the 2# curve, it can be observed that the light transmittance reaches 81.8% at the 860-1100nm waveband, so that the light transmittance of the dielectric coating film is approximately 20.4% according to judgment; according to the set of experimental data, the light transmittance of the composite surface layer and the dielectric coating film manufactured based on the technical scheme of the invention can ensure that a user can see clear endorsement image information.
Fig. 4 is a graph of laser etch layer absorption. The sample No. 1 is the absorptivity of laser etching layer to different wave band spectrum. The abscissa represents the wavelength of incident light, the ordinate is the absorption rate, and the absorption curve of the sample 1 can show that the absorption rate of laser etching is more than or equal to 54 percent in the wave band of 800-1100 nm; it is further ensured that the endorsement information can be clearly presented to the user.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911328475.2A CN110908265A (en) | 2019-12-20 | 2019-12-20 | Structure for enhancing endorsement image effect, anti-counterfeiting certificate card and endorsement method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911328475.2A CN110908265A (en) | 2019-12-20 | 2019-12-20 | Structure for enhancing endorsement image effect, anti-counterfeiting certificate card and endorsement method |
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| CN110908265A true CN110908265A (en) | 2020-03-24 |
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| CN201911328475.2A Pending CN110908265A (en) | 2019-12-20 | 2019-12-20 | Structure for enhancing endorsement image effect, anti-counterfeiting certificate card and endorsement method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112130439A (en) * | 2020-09-25 | 2020-12-25 | 北京理工大学 | Variable anti-counterfeiting computer hologram prepared based on femtosecond laser |
| CN114179549A (en) * | 2021-12-15 | 2022-03-15 | 公安部交通管理科学研究所 | Anti-fake certificate card with anti-fake mark and its making process |
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| US20030058491A1 (en) * | 2000-06-28 | 2003-03-27 | Holmes Brian William | Optically variable security device |
| CN101590784A (en) * | 2008-05-26 | 2009-12-02 | 中国印钞造币总公司 | Composite anti-counterfeit element |
| CN109733030A (en) * | 2019-02-26 | 2019-05-10 | 公安部第一研究所 | A kind of high safety card and preparation method thereof |
| CN211653405U (en) * | 2019-12-20 | 2020-10-09 | 公安部交通管理科学研究所 | Structure for enhancing endorsement image effect and anti-counterfeiting certificate card |
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2019
- 2019-12-20 CN CN201911328475.2A patent/CN110908265A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20030058491A1 (en) * | 2000-06-28 | 2003-03-27 | Holmes Brian William | Optically variable security device |
| CN101590784A (en) * | 2008-05-26 | 2009-12-02 | 中国印钞造币总公司 | Composite anti-counterfeit element |
| CN109733030A (en) * | 2019-02-26 | 2019-05-10 | 公安部第一研究所 | A kind of high safety card and preparation method thereof |
| CN211653405U (en) * | 2019-12-20 | 2020-10-09 | 公安部交通管理科学研究所 | Structure for enhancing endorsement image effect and anti-counterfeiting certificate card |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112130439A (en) * | 2020-09-25 | 2020-12-25 | 北京理工大学 | Variable anti-counterfeiting computer hologram prepared based on femtosecond laser |
| CN114179549A (en) * | 2021-12-15 | 2022-03-15 | 公安部交通管理科学研究所 | Anti-fake certificate card with anti-fake mark and its making process |
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