CN210489040U - High-temperature-resistant packaging type dynamic three-dimensional display anti-counterfeiting film - Google Patents
High-temperature-resistant packaging type dynamic three-dimensional display anti-counterfeiting film Download PDFInfo
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Abstract
The utility model relates to a high temperature resistant packaging type dynamic three-dimensional display anti-counterfeiting film, which comprises an optical substrate layer, wherein a plurality of hemispherical micro lenses are arranged on the upper surface of the optical substrate layer in a periodic array manner to form a micro lens layer, and the ball height of the micro lenses is 5-50 um; the lower surface of the optical substrate layer is provided with a picture and text information layer; the optical substrate layer, the micro-lens layer and the image-text information layer are bonded together through a soft film process to form a micro-lens anti-counterfeiting film; the upper surface of the micro-lens anti-counterfeiting film is provided with a first packaging layer, and the first packaging layer is bonded with the micro-lens layer through a first adhesive layer and a second adhesive layer; and a second packaging layer is arranged on the lower surface of the micro-lens anti-counterfeiting film and is bonded with the image-text information layer through a third adhesive layer. The utility model discloses an anti-fake membrane not only has extremely strong anti-fake function, can also make dynamic picture and text brighter, more clear to applicable in some occasions that require high temperature technology.
Description
Technical Field
The utility model relates to a developments stereoscopic display anti-fake membrane technical field, in particular to high temperature resistant encapsulated dynamic stereoscopic display anti-fake membrane.
Background
With the rapid development of economy and science, the market competition is more and more intense, so that the breeding and spreading of fake and inferior products are caused, and various fake-making and fake-making cases are reported in a large number. China is a leading manufacturing big country in the world, the anti-counterfeiting market capacity reaches 8000 billions of yuan, and the market of China is impacted more greatly and harmed more obviously by the inundation of counterfeit and shoddy products. Therefore, in order to protect the vital interests of enterprises and consumers, the international competitiveness of 'Chinese manufacturing' is improved, and the innovation and the upgrade of anti-counterfeiting technology are imperative.
As the application time of any anti-counterfeiting technology increases, the anti-counterfeiting capacity is gradually weakened, and the market demands for anti-counterfeiting technologies with continuous innovation characteristics are increasing. At present, the mainstream anti-counterfeiting technologies at home and abroad mainly include watermarks, lasers, printing ink and the like, but manufacturers mastering the technologies are numerous and have not been greatly innovated for more than ten years, and anti-counterfeiting products have serious information blockage, uniqueness and exclusivity loss and are extremely easy to be counterfeited by lawbreakers. As a novel super anti-counterfeiting material, the 3D dynamic three-dimensional display anti-counterfeiting membrane is produced at the same time. The dynamic three-dimensional display anti-counterfeiting product is a technology for automatically adjusting the focusing angle of different objects at different distances according to the change of an observation visual angle, and generating three-dimensional vision through brain fusion, so that an identifier can see the effect of smoothly sliding and displacing a three-dimensional image in a two-dimensional image.
The dynamic three-dimensional display anti-counterfeiting technology is based on micro-nano optical design, a micro prism or lens structure is constructed on the surface of an optical base film, the depth of field of graphics and texts is sensed and dynamically displayed, and the dynamic three-dimensional display anti-counterfeiting technology is generally called as a direct display type 3D optical anti-counterfeiting product. Although the technology level is higher, with the mass popularization of products and the progress of optical coating technology, the imitation of the microstructure exposed outside becomes easier. Meanwhile, the direct display type product also has the defects of high haze, low definition, poor anti-interference capability, no film coating on the surface and the like. Therefore, the packaging type dynamic three-dimensional display optical film is created.
However, although the conventional packaging film improves the above problems to a certain extent, the packaging film is limited by the material and cannot be applied to more occasions, for example, as described in the packaging method of the handheld naked-eye 3D display terminal of chinese patent publication No. CN 105158916 a, the packaging material is PET and UV resin, which can only resist about 200 ℃, and cannot be matched with some processes requiring a high temperature of more than 300 ℃.
Therefore, there is a need for further improvement to design a dynamic film package that can be used in high temperature applications.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a high temperature resistant encapsulation formula developments stereoscopic display anti-counterfeiting membrane to solve the encapsulation membrane and not high temperature resistant and lead to the limited problem of application scenario.
In order to achieve the above purpose, the technical scheme of the utility model is that: the high-temperature-resistant packaging type dynamic three-dimensional display anti-counterfeiting film comprises an optical substrate layer, wherein a plurality of hemispherical microlenses are arranged on the upper surface of the optical substrate layer in a periodic array mode to form a microlens layer, and the heights of the microlenses are 5-50 um; the lower surface of the optical substrate layer is provided with a picture and text information layer; the optical substrate layer, the micro-lens layer and the image-text information layer are bonded together through a soft film process to form a micro-lens anti-counterfeiting film; the upper surface of the micro-lens anti-counterfeiting film is provided with a first packaging layer, and the first packaging layer is bonded with the micro-lens layer through a first adhesive layer and a second adhesive layer; and a second packaging layer is arranged on the lower surface of the micro-lens anti-counterfeiting film and is bonded with the image-text information layer through a third adhesive layer.
The Soft film process is a mode in a roll-to-roll process, and is described in text of comparison between Soft-film (Soft-mode) and hard-mold (hard-mode) coating technologies in journal of 12 months in 2013 of the "advanced era".
Further, the optics substrate layer is transparent PET film material, and thickness is 24-300 um.
Furthermore, the micro lens is made of acrylic ultraviolet curing resin, the refractive index of the micro lens is 1.40-1.70, and the viscosity at 25 ℃ is not more than 1000 cps.
Further, the image-text information layer is made of UV resin, and the UV resin comprises acrylic ultraviolet curing resin.
Furthermore, the image-text information layer is of a single-layer, double-layer or multi-layer structure, the thickness of the single layer is 5-10um, and the thickness of each layer of the double-layer or multi-layer structure is the same as that of the single layer.
Further, the first packaging layer and the second packaging layer are made of transparent polyimide films, and the thickness of the first packaging layer and the second packaging layer is 12.5-125 um.
Furthermore, the first adhesive layer and the micro-lens layer form an integrated structure with a smooth surface, a layer of adhesive is coated on the upper surface of the integrated structure, a second adhesive layer is formed through normal temperature curing, and then the first packaging layer is coated on the surface of the second adhesive layer through a corona mode.
Furthermore, the first adhesive layer is made of UV acrylic resin, and the refractive index of the first adhesive layer is less than that of the material of the micro lens.
Furthermore, the second adhesive layer and the third adhesive layer are both made of high-temperature silica gel, and the thickness of the second adhesive layer and the thickness of the third adhesive layer are both 5-50 um.
The utility model discloses a high temperature resistant encapsulated dynamic stereoscopic display anti-counterfeiting membrane compares the advantage with prior art and lies in:
1. the utility model discloses an anti-counterfeiting membrane, its microlens layer comprises a plurality of microlens arrays, and each microlens comprises a convex lens and a concave lens, when the refractive index of convex lens material is greater than the refractive index of concave lens material, the microlens wholly is to the light focusing state, the haze reduces, the optical transmittance increases, the definition improves;
2. the anti-counterfeiting film of the utility model has novel and visual dynamic three-dimensional display effect, easy resolution, strong public visual readability, easy visual impression at first sight, and anti-counterfeiting function through the unique anti-common sense dynamic effect; meanwhile, the micro-lens structure is filled without gaps, and the lens micro-structure is tightly combined with the packaging layer and cannot be peeled off, so that the micro-lens structure cannot be copied, has strong anti-interference capability and good environment resistance, and has extremely strong anti-counterfeiting function;
3. the utility model discloses an anti-counterfeiting film adopts the mode of corona to bond together between encapsulated layer and the adhesive layer, and corona treatment only relates to the extremely shallow scope of encapsulated layer surface, generally only has the nanometer order of magnitude, consequently, all does not have very influence to the temperature resistance and the mechanical properties of encapsulated layer, and the polyimide film material that the encapsulated layer adopted can resist temperature 400 ℃, thereby makes the utility model discloses an anti-counterfeiting film can be applicable to some occasions that require high temperature technology.
Drawings
FIG. 1 is a schematic view of light transmission of a direct-view film;
FIG. 2 is a schematic view of the three-dimensional structure of the high temperature resistant packaging type dynamic three-dimensional display anti-counterfeiting film of the present invention;
FIG. 3 is a schematic cross-sectional view of the high temperature resistant packaging type dynamic three-dimensional display anti-counterfeiting film of the present invention;
FIG. 4 is a schematic view showing the light transmission of the high temperature resistant packaging type dynamic three-dimensional display anti-counterfeiting film of the present invention;
reference numerals: the optical packaging structure comprises an optical substrate layer 1, a micro-lens layer 2, an image-text information layer 3, a first packaging layer 4, a second packaging layer 5, a first adhesive layer 6, a second adhesive layer 7 and a third adhesive layer 8.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
The direct display dynamic three-dimensional anti-counterfeiting film is based on micro-nano optical design, a micro prism or lens structure is constructed on the surface of an optical base film, the depth of field and dynamic display of pictures and texts are realized, although the direct display dynamic three-dimensional anti-counterfeiting film has a good anti-counterfeiting effect, the direct display type product also has the defects of high haze, low definition, poor anti-interference capability, incapability of coating films on the surface, no high temperature resistance and the like, the light ray transmission schematic diagram of the direct display type membrane is shown in figure 1, as can be seen from figure 1, the light ray of the direct display type membrane is reflected to the upper left and upper right of a micro lens through the micro lens, and no light ray is transmitted right above the micro lens, so that the dynamic pictures and texts observed by human eyes are relatively dark and.
In order to improve the above problems, the utility model provides a high temperature resistant packaging type dynamic three-dimensional display anti-counterfeiting film, as shown in fig. 2-3, the high temperature resistant packaging type dynamic three-dimensional display anti-counterfeiting film of the utility model comprises an optical substrate layer 1, a micro-lens layer 2 is arranged on the upper surface of the optical substrate layer 1, a picture and text information layer 3 is arranged on the lower surface of the optical substrate layer 1, the micro-lens layer 2 and the picture and text information layer 3 are bonded together through a Soft film process (see the comparison of Soft film (Soft-mode) and hard film (hard-mode) coating technology in 'evaluation era' 2013 in 12 months & ltSUB & gt), so as to form the micro-lens anti-counterfeiting film, a first packaging layer 4 is arranged on the upper surface of the micro-lens anti-counterfeiting film, the first packaging layer 4 is bonded together with the micro-lens layer 2 through a first adhesive layer 6 and a second adhesive layer 7, and a second packaging layer 5 is arranged on the lower surface of the micro-lens anti-counterfeiting film, and the second packaging layer 5 is adhered to the image-text information layer 3 through a third adhesive layer 8.
The optical substrate layer 1 is made of transparent PET film and has a thickness of 24-300 um.
The upper surface of the optical substrate layer 1 is provided with a plurality of hemispherical microlenses in a periodic array mode, and the height of each microlens is generally 5-50 um; the micro lens is made of acrylic ultraviolet curing resin with good adhesion to a base material, the refractive index of the micro lens is 1.40-1.70, and the viscosity at 25 ℃ is not more than 1000cps, such as UV resin with the model number of BH120 produced by Nanjing Ponkus new material science and technology limited company or UV resin with the model number of KY90HC3-51 produced by Shanghai Feiki electro-optical materials GmbH.
The image-text information layer 3 is made of UV resin, and the UV resin can be acrylic ultraviolet curing resin which is the same as that of the micro-lens layer 2, or can be different; the image-text information layer 3 can be a single-layer, double-layer or multi-layer structure, the thickness of the single layer is 5-10um, and the thickness of each layer of the double-layer or multi-layer is also 5-10 um.
Compare in current three-dimensional anti-fake membrane of direct display developments, the utility model discloses the biggest improvement part lies in: arranging packaging layers, namely a first packaging layer 4 and a second packaging layer 5, on the upper surface and the lower surface of the micro-lens anti-counterfeiting film layer; the first packaging layer 4 and the second packaging layer 5 are made of transparent polyimide films, the polyimide films are purchased from Korea SKC KOLON PI company, the models can be selected from LN, LV, LS and IF models, and the thickness is 12.5-125 um.
Because the microlens layer 2 is a periodic microlens array, and the microlenses are hemispherical, so that a concave part is formed between the adjacent microlenses, when the surface of the microlens layer 2 is attached to the first packaging layer 4, if only the top of each microlens is coated with an adhesive, a gap will exist between the attached first packaging layer 4 and the microlens layer 2, the bonding mode is not firm, and when the anti-counterfeiting film is in a rolling or other stress state, the structural parameters of the microlens array can be changed to influence the final anti-counterfeiting effect. In order to avoid the problems, when the bonding operation is performed, the concave part is filled with the UV acrylic resin, the first adhesive layer 6 is formed through normal temperature curing, the first adhesive layer 6 and the microlens layer 2 form an integrated structure with a smooth surface, a layer of high-temperature silica gel is coated on the upper surface of the integrated structure in a wet coating mode, the second adhesive layer 7 is formed through normal temperature curing, and then the first packaging layer 4 is coated on the surface of the second adhesive layer 7 in a corona mode. Due to the design, the micro-lens structure is filled without gaps, and the micro-lens layer 2 and the first packaging layer 4 are tightly combined and cannot be peeled off, so that the micro-lens structure cannot be copied, has strong anti-interference capability and good environment resistance, and has a strong anti-counterfeiting function.
In order to enable the whole microlens to be in a focusing state on light, reduce haze, increase optical transmittance and improve definition, the refractive index of the microlens material is larger than that of the first adhesive layer 6, the first adhesive layer 6 is made of UV acrylic resin which is available from Changzhou George chemical engineering and technology Limited and has the model number of JL-07 and the refractive index of 1.45.
Similarly, a layer of high-temperature silica gel is coated on the lower surface of the image-text information layer 3 in a wet coating mode, the high-temperature silica gel is cured at normal temperature to form a third adhesive layer 8, and a second packaging layer 5 is coated on the surface of the third adhesive layer 8 in a corona mode to package the lower surface of the micro-lens anti-counterfeiting film layer, so that the high-temperature resistance of the anti-counterfeiting film is comprehensively improved.
Further, the thickness of the second adhesive layer 7 and the third adhesive layer 8 is 5-50 um.
Furthermore, the high-temperature silica gel is prepared by referring to a coating silicon rubber with Chinese patent publication No. CN 108250952A and the preparation method thereof.
The utility model discloses an encapsulation design, not only have extremely strong anti-fake function, can also make dynamic picture and text brighter, more clear, see through the schematic diagram like the light shown in figure 4, be focus state when the light that the surrounding environment sent sees through the microlens layer, haze reduces, optical transmittance increases, the definition improves, and adopt the mode of corona to bond together between encapsulated layer and the adhesive layer, corona treatment only relates to the extremely shallow scope of encapsulated layer surface, generally only nanometer order of magnitude, therefore, temperature resistance and the mechanical properties to the encapsulated layer all have no influence very, but the polyimide film material that the encapsulated layer adopted can temperature resistance 400 ℃, thereby make the utility model discloses an anti-fake membrane can be applicable to some occasions that require high temperature technology.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. High temperature resistant encapsulated dynamic three-dimensional display anti-counterfeiting film, its characterized in that: the micro-lens array comprises an optical substrate layer, wherein a plurality of hemispherical micro-lenses are arranged on the upper surface of the optical substrate layer in a periodic array mode to form a micro-lens layer, and the height of each micro-lens is 5-50 um; the lower surface of the optical substrate layer is provided with a picture and text information layer; the optical substrate layer, the micro-lens layer and the image-text information layer are bonded together through a soft film process to form a micro-lens anti-counterfeiting film; the upper surface of the micro-lens anti-counterfeiting film is provided with a first packaging layer, and the first packaging layer is bonded with the micro-lens layer through a first adhesive layer and a second adhesive layer; and a second packaging layer is arranged on the lower surface of the micro-lens anti-counterfeiting film and is bonded with the image-text information layer through a third adhesive layer.
2. The high temperature resistant packaging type dynamic three-dimensional display anti-counterfeiting film according to claim 1, wherein: the optical substrate layer is transparent PET film material, and thickness is 24-300 um.
3. The high temperature resistant packaging type dynamic three-dimensional display anti-counterfeiting film according to claim 1, wherein: the micro lens is made of acrylic ultraviolet curing resin, the refractive index of the micro lens is 1.40-1.70, and the viscosity of the micro lens at 25 ℃ is not more than 1000 cps.
4. The high temperature resistant packaging type dynamic three-dimensional display anti-counterfeiting film according to claim 1, wherein: the image-text information layer is made of UV resin, and the UV resin comprises acrylic ultraviolet curing resin.
5. The high temperature resistant packaging type dynamic three-dimensional display anti-counterfeiting film according to claim 4, wherein: the image-text information layer is of a single-layer, double-layer or multi-layer structure, the thickness of the single layer is 5-10um, and the thickness of each layer of the double-layer or multi-layer structure is the same as that of the single layer.
6. The high temperature resistant packaging type dynamic three-dimensional display anti-counterfeiting film according to claim 1, wherein: the first packaging layer and the second packaging layer are both made of transparent polyimide films and are 12.5-125um in thickness.
7. The high temperature resistant packaging type dynamic three-dimensional display anti-counterfeiting film according to claim 1, wherein: the first adhesive layer and the micro-lens layer form an integral structure with a smooth surface, a layer of adhesive is coated on the upper surface of the integral structure, a second adhesive layer is formed through normal temperature curing, and then a first packaging layer is coated on the surface of the second adhesive layer through a corona mode.
8. The high temperature resistant packaging type dynamic three-dimensional display anti-counterfeiting film according to claim 7, wherein: the first adhesive layer is made of UV acrylic resin, and the refractive index of the first adhesive layer is smaller than that of the material of the micro lens.
9. The high temperature resistant packaging type dynamic three-dimensional display anti-counterfeiting film according to claim 1, wherein: the second adhesive layer and the third adhesive layer are both made of high-temperature silica gel, and the thickness of the second adhesive layer and the thickness of the third adhesive layer are both 5-50 um.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110491277A (en) * | 2019-08-06 | 2019-11-22 | 江阴通利光电科技有限公司 | High temperature packaging formula dynamic solid shows anti false film |
| CN111830610A (en) * | 2020-08-11 | 2020-10-27 | 江阴通利光电科技有限公司 | Preparation method of air-packaged anti-counterfeiting lens film |
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2019
- 2019-08-06 CN CN201921261385.1U patent/CN210489040U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110491277A (en) * | 2019-08-06 | 2019-11-22 | 江阴通利光电科技有限公司 | High temperature packaging formula dynamic solid shows anti false film |
| CN111830610A (en) * | 2020-08-11 | 2020-10-27 | 江阴通利光电科技有限公司 | Preparation method of air-packaged anti-counterfeiting lens film |
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