CN209028338U - Anti-counterfeit structure, holographic thermoprinted anti false film - Google Patents

Anti-counterfeit structure, holographic thermoprinted anti false film Download PDF

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Publication number
CN209028338U
CN209028338U CN201821780076.0U CN201821780076U CN209028338U CN 209028338 U CN209028338 U CN 209028338U CN 201821780076 U CN201821780076 U CN 201821780076U CN 209028338 U CN209028338 U CN 209028338U
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frequency
layer
low frequency
grating
embossment
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CN201821780076.0U
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黄燕燕
王笑冰
周海滨
周菲菲
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Shenzhen Shenda Aurora Technology Co ltd
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Shenzhen Shenda Aurora Technology Co Ltd
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Abstract

Anti-counterfeit structure provided by the utility model, the anti-counterfeit structure being superimposed using low frequency embossment structure layer with high-frequency grating structure sheaf, the high-frequency grating structure sheaf of nanoscale thickness is attached directly on the low frequency embossment structure layer of micron order thickness, the diffraction angular of two kinds of structure sheafs is different, does not interfere with each other, the De-dispersion of low frequency camegraph, solid, metal sense effect is presented in low-angle observation, wide-angle observes that the gorgeous iris of high-frequency grating image, antifalse effect novel and unique have stronger anti-counterfeiting power.

Description

Anti-counterfeit structure, holographic thermoprinted anti false film
Technical field
The utility model relates to optical anti-counterfeiting field of material technology more particularly to a kind of anti-counterfeit structures, holographic thermoprinted anti-fake Film and preparation method thereof.
Background technique
Techniques of Optical Security is one of main counterfeit protection measures of current trade mark.Laser Holographic Counterfeit-proof Technique can not only be presented The main image of object or design configuration, moreover it is possible to make the image to be in the change of viewing angle by the principle of optical diffraction Rich in colorization and diversification, it is decorative strong;With high content of technology, threshold is high;It can be carried out on a large scale with moulding holographic technology Production, it is at low cost.Therefore, very popular as public anti-counterfeiting technology, be extremely widely used at present tobacco, card, The industries such as banknote, the wine industry, drug, health care product, gift, cosmetics.
With the popularization and application of rainbow holography trade mark, people start aestheticly tired occur.Recent years, gradually prevalence had Celature sense, sense of stereoscopic vision optical anti-counterfeiting effect, anti-fake visual effect is different from rainbow holography, but plate-making technology connects Closely.With the universal of these technologies and come into the open, antiforge function is declined, and allows fraud businessman to have an opportunity to take advantage of, by single Techniques of Optical Security is extremely difficult to higher antifalse effect.
Utility model content
Have in view of that, it is necessary in view of the defects existing in the prior art, provide a kind of anti-counterfeiting performance more preferably anti-counterfeit structure.
To achieve the above object, the utility model adopts the following technical solutions:
On the one hand, the utility model provides a kind of anti-counterfeit structure, comprising: low frequency embossment structure layer and is attached to described low High-frequency grating structure sheaf on frequency embossment structure layer, the spatial frequency range of the low frequency embossment structure layer are 20-125 line/mm, The spatial frequency range of the high-frequency grating structure sheaf is 1000-3000 line/mm.
In some preferred embodiments, the height of the low frequency embossment structure layer is higher than the high-frequency grating structure sheaf Big 6 times or more are spent, the height of the low frequency embossment structure layer is less than 2.5 μm.
In some preferred embodiments, the section of the low frequency embossment structure layer is zigzag or sinusoidal, the height The section of frequency optical grating construction layer is sinusoidal or rectangle.
In some preferred embodiments, the Two dimensional Distribution of the low frequency embossment structure layer is contour map or optical grating point Battle array.
In some preferred embodiments, the distribution of the high-frequency grating structure sheaf is the grating or grating in one-dimensional equal periods Dot matrix.
In some preferred embodiments, the high-frequency grating structure sheaf with a thickness of between 30nm-400nm, it is described low The thickness of frequency embossment structure layer is between 0.3 μm -2.5 μm.
Release layer is coated on basement membrane;Information resin layer is coated on the release layer;By the low frequency embossed layer and institute The overlaying structure hot padding of high-frequency grating structure sheaf is stated on information resin layer;One layer of the Vacuum Deposition plating on the overlaying structure again Layer;The coating hot melt gum layer on the coating.
In some preferred embodiments, the basement membrane is PET or BOPP, and the release layer is that fusing point is 80-90 DEG C Water wax, the information resin layer thickness are 1-3 μm, and the coating is the medium of high refractive index or the aluminium layer of high reflection, the plating Thickness degree is less than 50nm.
The utility model by adopting the above technical scheme the advantages of be:
Anti-counterfeit structure provided by the utility model, including low frequency embossment structure layer and it is attached to the low frequency embossment structure layer On high-frequency grating structure sheaf, the spatial frequency range of the low frequency embossment structure layer is 20-125 line/mm, the high frequency light The spatial frequency range of grid structure layer is 1000-3000 line/mm, due to low frequency embossment structure layer and two kinds of high-frequency grating structure sheaf The diffraction angular of structure sheaf is different, does not interfere with each other, and De-dispersion, solid, the metal of low frequency camegraph is presented in low-angle observation Feel effect, wide-angle observes that the gorgeous iris of high-frequency grating image, antifalse effect novel and unique attract public eyeball.
In addition, anti-counterfeit structure provided by the utility model, the anti-counterfeit structure being superimposed by low frequency embossment with high-frequency grating can be made At holographic anti-counterfeiting film, such as blocking film, transfer membrane, composite membrane, label, suitable for current mature holographic anti-counterfeiting film volume production work Skill, it is at low cost.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the anti-counterfeit structure schematic diagram that the utility model embodiment 1 provides.
Fig. 2 is the using renderings for the anti-counterfeit structure that the utility model embodiment 1 provides.
Fig. 3 is the structural schematic diagram for the holographic thermoprinted anti false film that the utility model embodiment 2 provides.
Fig. 4 is the step flow chart of the preparation method for the holographic thermoprinted anti false film that the utility model embodiment 2 provides.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work All other embodiment obtained, fall within the protection scope of the utility model.
Embodiment 1
Referring to Fig. 1, being the structural schematic diagram of anti-counterfeit structure provided by the utility model, comprising: low frequency embossment structure layer 110 and the high-frequency grating structure sheaf 120 that is attached on the low frequency embossment structure layer 110, wherein the low frequency embossment structure layer 110 spatial frequency range is 20-125 line/mm, and the spatial frequency range of the high-frequency grating structure sheaf 120 is 1000-3000 Line/mm.
In some preferred embodiments, the height of the low frequency embossment structure layer 110 is than the high-frequency grating structure sheaf Big 6 times of 120 height or more, the height of the low frequency embossment structure layer 110 is less than 2.5 μm.
In some preferred embodiments, the section of the low frequency embossment structure layer 110 be zigzag or sinusoidal, it is described The section of high-frequency grating structure sheaf 120 is sinusoidal or rectangle.
In some preferred embodiments, the Two dimensional Distribution of the low frequency embossment structure layer 110 is contour map or grating Dot matrix, the grating lattice have different directions, different cycles, different duty.
In some preferred embodiments, the distribution of the high-frequency grating structure sheaf 120 be one-dimensional equal periods grating or Grating lattice, the grating lattice have different directions, different cycles, different duty.
In some preferred embodiments, the high-frequency grating structure sheaf 120 with a thickness of between 30nm-400nm, institute The thickness of low frequency embossment structure layer 110 is stated between 0.3 μm -2.5 μm.
Anti-counterfeit structure provided by the utility model can be prepared by following processing steps:
Make the mold of low frequency camegraph.
Specifically, it can directly be processed and be carved on the materials such as metal or PMMA by Ultra-precision CNC Machine, it can also be with entirely Breath dot matrix direct-write photoetching system exposes on photoetching hectograph, metal die is made in development, surface metalation, electroplating work procedure.
Position etching high-frequency grating structure is accurately covered on low frequency camegraph mold.
Specifically, photoresist layer identical with high-frequency grating depth of structural layer is first coated on low frequency camegraph mold; Then the method photoetching interfered with double laser beam is one-dimensional to wait periods high-frequency grating, can also be exposed with holographic dot matrix direct-write photoetching system Light have different directions, different cycles, different duty high-frequency grating.
The metal mold of low frequency embossment Yu high-frequency grating overlaying structure is made up of exposure, development, surface metalation, plating Tool.
Referring to Fig. 2, be anti-counterfeit structure provided by the utility model using renderings, using low frequency embossment structure layer with The anti-counterfeit structure of high-frequency grating structure sheaf superposition, the high-frequency grating structure sheaf of nanoscale thickness are attached directly to the low frequency of micron order thickness On embossment structure layer, the diffraction angular of two kinds of structure sheafs is different, does not interfere with each other, and low frequency camegraph is presented in low-angle observation De-dispersion, solid, metal sense effect, wide-angle observe the gorgeous iris of high-frequency grating image, antifalse effect novel and unique, Has stronger anti-counterfeiting power.
Embodiment 2
Referring to Fig. 3, being the structural schematic diagram of holographic thermoprinted anti false film provided by the embodiment of the utility model, comprising: according to The secondary basement membrane 210 being stacked, release layer 220, low frequency embossment structure layer 230, high-frequency grating structure sheaf 240, coating 250 and back Glue-line 260, the spatial frequency range of the low frequency embossment structure layer 230 are 20-125 line/mm, the high-frequency grating structure sheaf 240 spatial frequency range is 1000-3000 line/mm.
Referring to Fig. 4, the utility model additionally provides a kind of preparation method of holographic thermoprinted anti false film, including following steps It is rapid:
Step S310: release layer is coated on basement membrane.
In some preferred embodiments, the basement membrane is PET or BOPP.
Step S320: low frequency embossment structure layer information resin layer is coated on the release layer;
In some preferred embodiments, the release layer is the water wax that fusing point is 80-90 DEG C,
Step S330: by the overlaying structure hot padding of the low frequency embossed layer and the high-frequency grating structure sheaf in inforamtion tree On rouge layer;
In some preferred embodiments, the information resin layer thickness is 1-3 μm.
Step S340: one layer of coating of Vacuum Deposition on the overlaying structure again;
In some preferred embodiments, the coating is the medium of high refractive index or the aluminium layer of high reflection, the coating Thickness is less than 50nm.
Step S350: the coating hot melt gum layer on the coating.
It is appreciated that the coating hot melt gum layer on the coating, gum layer hot melt becomes sticky when thermoprint, by anti-counterfeit structure layer It is attached to and is scalded on ground.
Anti-counterfeit structure provided by the utility model can be made into holography by the anti-counterfeit structure that low frequency embossment is superimposed with high-frequency grating Anti false film, such as blocking film, transfer membrane, composite membrane, label, suitable for current mature holographic anti-counterfeiting film batch production technique, cost It is low.
The anti-counterfeit structure of certain the utility model can also have a variety of transformation and remodeling, it is not limited to above embodiment Specific structure.In short, the protection scope of the utility model should include those to those skilled in the art show and The transformation or substitution that are clear to and remodeling.

Claims (7)

1. a kind of anti-counterfeit structure characterized by comprising low frequency embossment structure layer and be attached on the low frequency embossment structure layer High-frequency grating structure sheaf, the spatial frequency range of the low frequency embossment structure layer is 20-125 line/mm, the high-frequency grating knot The spatial frequency range of structure layer is 1000-3000 line/mm.
2. anti-counterfeit structure as described in claim 1, which is characterized in that the height of the low frequency embossment structure layer is than the high frequency Big 6 times of the height of optical grating construction layer or more, the height of the low frequency embossment structure layer is less than 2.5 μm.
3. anti-counterfeit structure as described in claim 1, which is characterized in that the section of the low frequency embossment structure layer be zigzag or Sinusoidal, the section of the high-frequency grating structure sheaf are sinusoidal or rectangle.
4. anti-counterfeit structure as described in claim 1, which is characterized in that the Two dimensional Distribution of the low frequency embossment structure layer is contour Line chart or grating lattice.
5. anti-counterfeit structure as described in claim 1, which is characterized in that the distribution of the high-frequency grating structure sheaf is one-dimensional isoperimetric The grating or grating lattice of phase.
6. anti-counterfeit structure as described in claim 1, which is characterized in that the high-frequency grating structure sheaf with a thickness of 30nm- Between 400nm, the thickness of the low frequency embossment structure layer is between 0.3 μm -2.5 μm.
7. a kind of holographic thermoprinted anti false film characterized by comprising basement membrane, release layer, the low frequency embossment knot being cascading Structure layer, high-frequency grating structure sheaf, coating and gum layer, the spatial frequency range of the low frequency embossment structure layer be 20-125 line/ Mm, the spatial frequency range of the high-frequency grating structure sheaf are 1000-3000 line/mm.
CN201821780076.0U 2018-10-30 2018-10-30 Anti-counterfeit structure, holographic thermoprinted anti false film Active CN209028338U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109324418A (en) * 2018-10-30 2019-02-12 深圳市深大极光科技有限公司 Anti-counterfeit structure, holographic thermoprinted anti false film and preparation method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109324418A (en) * 2018-10-30 2019-02-12 深圳市深大极光科技有限公司 Anti-counterfeit structure, holographic thermoprinted anti false film and preparation method thereof

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Address after: 518132 Building 1 and Building 3, 1st Floor, Tianliao Avenue Juhui Mold Industrial Park, Tianliao Community, Yutang Street, Guangming New District, Shenzhen City, Guangdong Province

Patentee after: Shenzhen Shenda Aurora Technology Co.,Ltd.

Address before: 518132 Building 1, Juhui Industrial Park, Tianliao community, Guangming New District, Shenzhen City, Guangdong Province

Patentee before: SHENZHEN SHENDA AURORA TECHNOLOGY Co.,Ltd.