CN104101926A - Anti-fake grating, anti-fake brand, gilding film and composite film - Google Patents
Anti-fake grating, anti-fake brand, gilding film and composite film Download PDFInfo
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- CN104101926A CN104101926A CN201410344663.5A CN201410344663A CN104101926A CN 104101926 A CN104101926 A CN 104101926A CN 201410344663 A CN201410344663 A CN 201410344663A CN 104101926 A CN104101926 A CN 104101926A
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Abstract
The invention provides an anti-fake grating which has a multi-channel discoloration effect. The anti-fake grating comprises a base layer, a grating information layer and a medium layer which are sequentially arranged in a layering mode. The grating information layer is one-dimensional sine relief type sub-wavelength gratings of quasi-reflection volume. The anti-fake grating has the multi-channel discoloration effect, can well combine public fake resisting and specialist recognition, and can effectively improve the anti-fake capability and the application range of an anti-fake label. An anti-fake brand, a gilding film and a composite film are further provided.
Description
Technical field
The present invention relates to field of anti-counterfeit technology, relate in particular to a kind of anti-false trademark, gilding film and composite membrane that there is the false proof grating of hyperchannel color changeable effect and there is this false proof grating.
Background technology
The Techniques of Optical Security rising along with current era development in science and technology is that a kind of physical optics of mainly utilizing is carried out false proof means to product.Its ultimate principle is while utilizing light to propagate in various bearing mediums, the various optical characteristics such as the transmission producing, refraction, diffraction can make the anti-fake product forming when observing, obtain corresponding optical effect, and this false proof mode can have uniqueness and uniqueness, be difficult for copying.Holographic laser raster anti-counterfeiting technology not only can present the main image of object or design configuration, can also make by the principle of optical diffraction image along with the change of viewing angle is rich color and variation.This anti-counterfeiting technology content is high, equipment is superior, production run is complicated, and after processing, product is very easily destroyed, thereby has quite high art and false proof value.
The develop rapidly of China's planned economy has brought the tinkling of jades commodity that meet the eye on every side.Baneful influence market economy being brought in order to control counterfeit and shoddy goods, except setting up registered trademark system, also will develop anti-false trademark, with standard commodity economy and market development.Anti-false trademark refers to and can transfer on the packing of product or adjunct by modes such as stickup, printings, and has the sign of anti-fake effect.
At present existing false proof registered trademark comprises laser holographic mark, two-dimentional code anti-fake, anti-forgery ink printing etc., and these false proof means are because its physical principle is easily understood, can suitability for industrialized production, so cost of manufacture is lower and be beneficial to extensive popularization.But along with the universal of these technology with come into the open, make its antiforge function obviously decline, allow fraud businessman have an opportunity to take advantage of, be therefore badly in need of seeking the complicated but false proof mode simple for production of a kind of design concept, the development that continues anti-false trademark.
From false proof angle, generally can be divided into that the public is false proof, professional is false proof and false proof three levels of expert.The public is false proof to be referred to without by any instrument, user only with eyes see, ear, hand touch the false proof means that can distinguish authenticity of products.The false proof of two other level need to be by instrument and equipment, and the particular attribute that the special material in anti-fake product is had is identified.Along with scientific and technological development and growing material and cultural needs, the simple public is false proof and expert is false proof can not meet already.Therefore the high-new anti-counterfeiting technology that, research has the public and an expert's double anti-forge function is trend of the times.
Summary of the invention
For the problems referred to above, the object of this invention is to provide a kind of false proof grating with hyperchannel color changeable effect, there is the public and expert's double anti-forge function.
A false proof grating, it has hyperchannel color changeable effect, and described false proof grating comprises basalis, grating information layer and the dielectric layer of stratification successively, and described grating information layer is the sub-wave length grating of the sinusoidal relief type quasi-reflection of one dimension volume.
In the present invention's one better embodiment, described grating information layer is for to be formed by the hot pressing of nickel mother matrix, and described nickel mother matrix is made by the hyperfine photoetching of laser hologram or the accurate exposure technique of electron beam.
In the present invention's one better embodiment, described basalis is made by thermoplastic resin or glass; Described grating information layer is made by transparent resin, and its refractive index is 1.4～1.9; Described dielectric layer is made by high refractive index transparent material, and its refractive index is greater than 1.9, and thickness is 25～60nm; Described high refractive index transparent material is zinc sulphide or titania.
In the present invention's one better embodiment, described sub-wave length grating is monocycle grating, and its cycle is 320～420nm, and grating depth is 80～140nm.
In the present invention's one better embodiment, while observing described false proof grating with 25～miter angle, around the axle rotation perpendicular to the plane of delineation, observe, can reproduce the beautiful high-purity light of different colours; While observing described false proof grating with 60～80 degree angles, observing perpendicular to grating grid in-plane, can see first-order diffraction iridescence.
In the present invention's one better embodiment, described sub-wave length grating is binary cycle grating, it comprises minor cycle sinusoidal grating and large period sinusoidal grating, and the cycle of described minor cycle sinusoidal grating is 320～420nm, and the cycle of described large period sinusoidal grating is 600～900nm.
In the present invention's one better embodiment, while observing described false proof grating with 25～miter angle, around the axle rotation perpendicular to the plane of delineation, observe, can reproduce the beautiful high-purity light of different colours; While observing described false proof grating with 60～80 degree angles and with 5～30 degree angles, observing perpendicular to grating grid in-plane, all can see first-order diffraction iridescence.
The invention provides a kind of anti-false trademark, the main part of described anti-false trademark is false proof grating as mentioned above.
The invention provides a kind of gilding film, it comprises basalis, release layer, grating information layer, dielectric layer and the hot melt gum layer of stratification successively, and described grating information layer is the sub-wave length grating of the sinusoidal relief type quasi-reflection of one dimension volume.
The invention provides a kind of composite membrane, it comprises basalis, grating information layer, dielectric layer and the black pressure-sensitive adhesive layer of stratification successively, and described grating information layer is the sub-wave length grating of the sinusoidal relief type quasi-reflection of one dimension volume.
With respect to prior art, described false proof grating has hyperchannel color changeable effect, can combine well with expert identification the public is false proof, can effectively strengthen anti-counterfeit capability and the range of application of antifalsification label.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to better understand technological means of the present invention, and can be implemented according to the content of instructions, and for above and other objects of the present invention, feature and advantage can be become apparent, below especially exemplified by embodiment, and coordinate accompanying drawing, be described in detail as follows.
Accompanying drawing explanation
The schematic diagram of the false proof grating that Fig. 1 provides for first embodiment of the invention;
Fig. 2 be false proof grating diffration characteristic shown in Fig. 1 affect parameter schematic diagram;
Fig. 3 is schematic diagram when false proof grating is binary cycle optical grating construction shown in Fig. 1;
Fig. 4 a to Fig. 4 d is the zero level transmissivity test pattern of false proof grating shown in Fig. 1;
The schematic diagram of the gilding film that Fig. 5 provides for third embodiment of the invention;
The schematic diagram of the composite membrane that Fig. 6 provides for fourth embodiment of the invention.
Embodiment
Below in conjunction with drawings and the specific embodiments, the present invention is further detailed explanation.
Refer to Fig. 1, the invention provides a kind of false proof grating 100, it has hyperchannel color changeable effect, and described false proof grating 100 comprises basalis 10, grating information layer 20 and the dielectric layer 30 of stratification successively, and described grating information layer 20 is the sub-wave length grating of the sinusoidal relief type quasi-reflection of one dimension volume.
Be understandable that, the characteristic dimension of sub-wave length grating has the identical order of magnitude with optical wavelength, light wave polarization has important impact to the diffracting effect of light wave, scalar diffraction theory can not practical requirement, must use the strict Vector Diffraction Theory based on Theory of Electromagnetic Field to analyze Grating Properties, such as rigorous coupled wave is theoretical.The parameter that affects sub-wave length grating diffraction characteristic is a lot, comprise that cycle T, refractive index n 1, groove depth h, the plating thickness d of deielectric-coating of incident light wavelength, incidence angle θ, incident orientation angle and grating are, the refractive index n of deielectric-coating 2 etc., as shown in Figure 2, when in these parameters, any one changes, diffraction efficiency all will change.When Grating Properties is analyzed, the present embodiment is theoretical based on rigorous coupled wave, utilize genetic algorithm iteration optimization to there is the false proof grating structural parameter of specific hyperchannel color changeable effect, comprise that cycle T, refractive index n 1, groove depth h, the plating thickness d of deielectric-coating of incidence angle θ, grating are, the refractive index n of deielectric-coating 2, these parameters mate mutually, make described false proof grating 100 have specific hyperchannel color changeable effect.
The hyperchannel color changeable effect of described false proof grating 100 specifically can be presented as:
Cycle T, refractive index n 1, groove depth h, the plating thickness d of deielectric-coating by designing the grating of mutual coupling are, the refractive index n of deielectric-coating 2.Perpendicular to grating grid in-plane, observing described false proof grating 100, when incident light is about 45 °, the color of the zero order light of reproduction is purple; When incident light is about 42 °, the color of the zero order light of reproduction is blue; When incident light is about 30 °, the color of the zero order light of reproduction is bright green; When incident light is about 70 °, reproduction be to dazzle beautiful first-order diffraction iridescence.Around the axle perpendicular to the plane of delineation, rotate approximately 45 ° and observe described false proof grating 100, when incident light is about 45 °, the color of the zero order light of reproduction is bright green; Around the axle rotation perpendicular to the plane of delineation, to 90 ° of described false proof gratings 100 of observation, when incident light is about 45 °, the color of the zero order light of reproduction is golden yellow; When incident light is about 30 °, the color of the zero order light of reproduction is peony.
While making described false proof grating 100, described grating information layer 20 and described dielectric layer 30 are formed at the surface, the same side of described basalis 10 successively, wherein, described dielectric layer 30 is for being formed at the surperficial coating of described grating information layer 20, and its shape, structure are determined by shape, the structure of described grating information layer 20.
In the present embodiment, described basalis 10 is made by thermoplastic resin or glass, particularly, can adopt and make as materials such as polycarbonate (PC), polyethylene terephthalate (PET), Polyvinylchloride (PVC), polymethylmethacrylate (PMMA), tygon (PE) or polypropylene (BOPP).
In the present embodiment, described grating information layer 20 is made by transparent resin, and its refractive index is 1.4～1.9, and described grating information layer 20 is formed by the hot pressing of nickel mother matrix, be understandable that, described nickel mother matrix can be made by the hyperfine photoetching of laser hologram or the accurate exposure technique of electron beam.
In the present embodiment, described dielectric layer 30 is made by high refractive index transparent material, and its refractive index is different from the refractive index of described grating information layer 20.Preferably, the refractive index of described dielectric layer 30 is greater than 1.9, and thickness is 25～60nm.
Be understandable that, described high refractive index transparent material can be the materials such as zinc sulphide or titania.
Embodiment 1
See also Fig. 1 and Fig. 2, described sub-wave length grating is monocycle grating, and the grating information layer 20 in described false proof grating 100 is monocycle optical grating construction, and its cycle T is 320～420nm, and grating depth is 80～140nm.
Described false proof grating 100 has hyperchannel colour change function, even under cloudy day or dim astigmatic environment, also can all reproduce different colours at a plurality of viewing planes.Particularly, while observing described false proof grating 100 with 25～miter angle, around the axle rotation perpendicular to the plane of delineation, observe, can reproduce the beautiful high-purity light of different colours, there is hyperchannel color changeable effect, without additionally observing by optical instrument; While observing described false proof grating 100 with 60～80 degree angles, observing perpendicular to grating grid in-plane, can obviously see first-order diffraction iridescence.
Embodiment 2
Refer to Fig. 3, described sub-wave length grating is binary cycle grating, be that grating information layer in described false proof grating 100 20 is binary cycle optical grating construction, it comprises minor cycle sinusoidal grating and large period sinusoidal grating, the cycle T 1 of described minor cycle sinusoidal grating is 320～420nm, and the cycle T 2 of described large period sinusoidal grating is 600～900nm.
Described false proof grating 100 has hyperchannel colour change function, even under cloudy day or dim astigmatic environment, also can all reproduce different colours at a plurality of viewing planes.Particularly, while observing described false proof grating with 25～miter angle, around the axle rotation perpendicular to the plane of delineation, observe, can reproduce the beautiful high-purity light of different colours, there is hyperchannel color changeable effect, and without additionally observing by optical instrument; While observing described false proof grating with 60～80 degree angles and with 5～30 degree angles, observing perpendicular to grating grid in-plane, all can see first-order diffraction iridescence.
For verifying the characteristic of described false proof grating 100, the present embodiment utilizes ultraviolet-visible pectrophotometer in the situation that of different viewing planes and Different Light incident angle, zero order reflection rate to described false proof grating 100 is tested, as shown in Fig. 4 a to 4d, known, described false proof grating 100 has the reflectivity higher than 80% at royal purple light, green glow, golden yellow light and red spectral band, and has the half-wave bandwidth higher than 50nm, and the high-purity luminance brightness that therefore described false proof grating 100 reproduces is high.
Be understandable that, utilize described false proof grating 100, can form the printing figure message that Clairvoyant type hologram marking film covers, be printed on confidential documents, above encrypted document, neither affect the observation of laser hologram image, also do not affect reading of document content.In the angle of normal reading file, because the reflection wavelength angle of incident angle and false proof figure does not overlap, its false proof figure can stash because cannot see, and does not affect the normal reading to document content; And by the document certain angle that tilts, the false proof figure of hiding will be shown.
Described false proof grating 100, under diffuse illumination condition, can obviously be observed hyperchannel color changeable effect by naked eyes, and change color is specific, describable; The zero order light of reproducing is polarized light, can utilize coherent detection instrument to identify.Therefore, described false proof grating 100 can combine with expert identification well by the public is false proof, can effectively strengthen anti-counterfeit capability and the range of application of antifalsification label.
Described false proof grating 100 also can combine with gilding film, composite membrane, transfer membrane etc., forms novel, diversified anti-fake product, is applied in the various products such as card card, tobacco and wine, clothes, cosmetics, medicine, computer hardware.
Second embodiment of the invention provides a kind of anti-false trademark, and its main part is described false proof grating 100.Described anti-false trademark combines relief type grating and reflective volume type grating well, therefore can be used in moulding replication, mass industrialized production, and cost is low.
Refer to Fig. 5, third embodiment of the invention provides a kind of gilding film 200, and it comprises basalis 10, grating information layer 20, dielectric layer 30, release layer 40 and hot melt gum layer 50.Described basalis 10, described release layer 40, described grating information layer 20, described dielectric layer 30 and described hot melt gum layer 50 be stratification successively, and described grating information layer 20 is the sub-wave length grating of the sinusoidal relief type quasi-reflection of one dimension volume.
Described release layer 40 plays dissociation in the use of described gilding film 200, and the raw material using is all the wax that fusing point is 80-90 ℃ conventionally.Described hot melt gum layer 50 is the superficial layer of described gilding film 200, and it is covered in described dielectric layer 30, when the use of described gilding film 200, plays the effect adhering to mutually with printed material surface.
Be understandable that, described gilding film 200 is the application of described false proof grating 100.
Refer to Fig. 6, fourth embodiment of the invention provides a kind of composite membrane 300, and it comprises basalis 10, grating information layer 20, dielectric layer 30 and black pressure-sensitive adhesive layer 60.Described basalis 10, described grating information layer 20, described dielectric layer 30 and described black pressure-sensitive adhesive layer 60 be stratification successively, and described grating information layer 20 is the sub-wave length grating of the sinusoidal relief type quasi-reflection of one dimension volume.
Described black pressure-sensitive adhesive 60 is covered in described dielectric layer 30, and it can absorb parasitic light, increases color contrast, strengthen hyperchannel color change effect.
Be understandable that, described composite membrane 300 is the application of described false proof grating 100.
The above, only embodiments of the invention, not the present invention is done to any pro forma restriction, although the present invention discloses as above with embodiment, yet not in order to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, when can utilizing the technology contents of above-mentioned announcement to make a little change or being modified to the equivalent embodiment of equivalent variations, in every case be not depart from technical solution of the present invention content, any simple modification of above embodiment being done according to technical spirit of the present invention, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (10)
1. a false proof grating, it has hyperchannel color changeable effect, it is characterized in that, and described false proof grating comprises basalis, grating information layer and the dielectric layer of stratification successively, and described grating information layer is the sub-wave length grating of the sinusoidal relief type quasi-reflection of one dimension volume.
2. false proof grating as claimed in claim 1, is characterized in that, described grating information layer is for to be formed by the hot pressing of nickel mother matrix, and described nickel mother matrix is made by the hyperfine photoetching of laser hologram or the accurate exposure technique of electron beam.
3. false proof grating as claimed in claim 1, is characterized in that, described basalis is made by thermoplastic resin or glass; Described grating information layer is made by transparent resin, and its refractive index is 1.4～1.9; Described dielectric layer is made by high refractive index transparent material, and its refractive index is greater than 1.9, and thickness is 25～60nm; Described high refractive index transparent material is zinc sulphide or titania.
4. false proof grating as claimed in claim 1, is characterized in that, described sub-wave length grating is monocycle grating, and its cycle is 320～420nm, and grating depth is 80～140nm.
5. false proof grating as claimed in claim 4, is characterized in that, while observing described false proof grating with 25～miter angle, around the axle rotation perpendicular to the plane of delineation, observes, and can reproduce the beautiful high-purity light of different colours; While observing described false proof grating with 60～80 degree angles, observing perpendicular to grating grid in-plane, can see first-order diffraction iridescence.
6. false proof grating as claimed in claim 1, it is characterized in that, described sub-wave length grating is binary cycle grating, and it comprises minor cycle sinusoidal grating and large period sinusoidal grating, the cycle of described minor cycle sinusoidal grating is 320～420nm, and the cycle of described large period sinusoidal grating is 600～900nm.
7. false proof grating as claimed in claim 6, is characterized in that, while observing described false proof grating with 25～miter angle, around the axle rotation perpendicular to the plane of delineation, observes, and can reproduce the beautiful high-purity light of different colours; While observing described false proof grating with 60～80 degree angles and with 5～30 degree angles, observing perpendicular to grating grid in-plane, all can see first-order diffraction iridescence.
8. an anti-false trademark, is characterized in that, the main part of described anti-false trademark is the false proof grating as described in claim 1～7 any one.
9. a gilding film, is characterized in that, comprises basalis, release layer, grating information layer, dielectric layer and the hot melt gum layer of stratification successively, and described grating information layer is the sub-wave length grating of the sinusoidal relief type quasi-reflection of one dimension volume.
10. a composite membrane, is characterized in that, comprises basalis, grating information layer, dielectric layer and the black pressure-sensitive adhesive layer of stratification successively, and described grating information layer is the sub-wave length grating of the sinusoidal relief type quasi-reflection of one dimension volume.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410344663.5A CN104101926B (en) | 2014-03-13 | 2014-07-18 | Anti-fake grating, anti-fake brand, gilding film and composite film |
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| CN201410093112.6A CN103901518A (en) | 2014-03-13 | 2014-03-13 | Anti-fake grating, anti-fake trademark, hot stamping film and composite film |
| CN201410093112.6 | 2014-03-13 | ||
| CN2014100931126 | 2014-03-13 | ||
| CN201410344663.5A CN104101926B (en) | 2014-03-13 | 2014-07-18 | Anti-fake grating, anti-fake brand, gilding film and composite film |
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| CN104101926A true CN104101926A (en) | 2014-10-15 |
| CN104101926B CN104101926B (en) | 2017-02-22 |
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| CN201410344663.5A Active CN104101926B (en) | 2014-03-13 | 2014-07-18 | Anti-fake grating, anti-fake brand, gilding film and composite film |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111366096A (en) * | 2020-03-09 | 2020-07-03 | 北京印刷学院 | Method for measuring groove depth of holographic master plate |
| WO2021218099A1 (en) * | 2020-04-27 | 2021-11-04 | 苏州苏大维格科技集团股份有限公司 | Dynamic patterned photochromic film |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105046309B (en) * | 2015-08-26 | 2018-09-14 | 苏州苏大维格光电科技股份有限公司 | A kind of phototropic intelligent label and preparation method thereof |
| CN113763801A (en) * | 2021-09-08 | 2021-12-07 | 中国科学院微电子研究所 | Anti-counterfeiting structure, preparation method of anti-counterfeiting structure and chip |
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2014
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| WO2011042608A1 (en) * | 2009-10-08 | 2011-04-14 | Teknologian Tutkimuskeskus Vtt | Method for manufacturing an indicator, indicator, and use of same |
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| CN111366096A (en) * | 2020-03-09 | 2020-07-03 | 北京印刷学院 | Method for measuring groove depth of holographic master plate |
| CN111366096B (en) * | 2020-03-09 | 2021-09-14 | 北京印刷学院 | Method for measuring groove depth of holographic master plate |
| WO2021218099A1 (en) * | 2020-04-27 | 2021-11-04 | 苏州苏大维格科技集团股份有限公司 | Dynamic patterned photochromic film |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104101926B (en) | 2017-02-22 |
| CN103901518A (en) | 2014-07-02 |
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Address after: 518132 Guangdong province Shenzhen Guangming Tianliao Avenue Juhui Industrial Park 1 Shenzhen University reflective material factory Applicant after: Xu Ping Applicant after: SHENZHEN SHENDA AURORA TECHNOLOGY Co.,Ltd. Address before: 518132 Guangdong province Shenzhen Guangming Tianliao Avenue Juhui Industrial Park 1 Shenzhen University reflective material factory Applicant before: Xu Ping Applicant before: Reflective Materials Manufactory Company SZU |
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Address after: 518132 Shenzhen University Reflective Material Factory, Building 1, Juhui Industrial Park, Tianliao Avenue, Guangming New District, Shenzhen, Guangdong Patentee after: Xu Ping Patentee after: Shenzhen Shenda Aurora Technology Co.,Ltd. Address before: 518132 Shenzhen University Reflective Material Factory, Building 1, Juhui Industrial Park, Tianliao Avenue, Guangming New District, Shenzhen, Guangdong Patentee before: Xu Ping Patentee before: SHENZHEN SHENDA AURORA TECHNOLOGY Co.,Ltd. |