CN109291673A - A kind of patterning holographic false proof device and preparation method thereof accurately aluminized - Google Patents
A kind of patterning holographic false proof device and preparation method thereof accurately aluminized Download PDFInfo
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- CN109291673A CN109291673A CN201811114821.2A CN201811114821A CN109291673A CN 109291673 A CN109291673 A CN 109291673A CN 201811114821 A CN201811114821 A CN 201811114821A CN 109291673 A CN109291673 A CN 109291673A
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- concaveconvex structure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
- B41M3/14—Security printing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
Abstract
The invention discloses the patterning holographic false proof devices that one kind is accurately aluminized, including the substrate layer, imaging layer and gum layer being cascading, the imaging layer includes the structure sheaf and metal layer being stacked, the structure sheaf side fits with substrate layer, the other side is equipped with gradient micro nano structure, the micro nano structure includes the first concaveconvex structure and the second concaveconvex structure, and the second concaveconvex structure is located at the depressed section of first concaveconvex structure；The metal layer is set on the crowning of the first concaveconvex structure, the hollow out effect of the difference formation metal layer of aluminizing of the concave face and crowning of the first concaveconvex structure, so that holographic false proof device shows holographic optical and becomes antifalse effect.Technical solution of the present invention is not high for the precision of current ink set position printing, washes the situation of aluminium process complexity, in such a way that aluminium layer is deposited in patterning, can effectively improve the precision of aluminizing of holographic false proof device, while also simplifying operating process.
Description
Technical field
The invention belongs to security devices fields, and in particular to the patterning holographic false proof device and its system that one kind is accurately aluminized
Preparation Method.
Background technique
Holographic false proof is a kind of antifalse technology to grow up using laser holography, and also known as laser hologram is anti-
It is pseudo-.Laser holography be after laser in nineteen sixties come out after develop rapidly one kind it is stereographic
Technology.The progress of other anti-counterfeiting technologies at any time, holographic false proof also obtain new development and application.Since holographic security technology has
It is readily identified, high in technological content, be easy to produce in batches and be difficult to the characteristics of replicating, be widely used in anti-counterfeit field.Early stage is complete
Breath anti-counterfeiting technology is by the raster effects of the interference preparation of two-beam, and later, pixel photoetching technique has achieved automation
Photoetching, laser writing technology continues to develop in recent years, and optical effect also constantly develops.By monochrome, with position aniseikania, dynamic etc.
Diffraction grating effect extends to the new optical effects such as Zero-order diffractive anti-counterfeiting technology, purple light effect, platinum embossment, lens reproduction.
Holographic security technology is developed so far, and new Techniques of Optical Security is widely used in national certificate, cigarette packet packaging and brand protection
Aspect.
But with the development of technology, the requirement in actual life for holographic security technology is also higher and higher.Wherein,
For the threshold for increasing holographic security technology, two-way positioning washes aluminium holographic security technology and is widely popularized, by Euro and it is many
Banknote, diplomatic document and marketable securities of other countries etc..At home, also it is used for beautiful pearl medicine company, newly pacifies medicine company, Mo Mei get etc.
Drug.Currently used aluminium technique of washing washes aluminium in the embossed plies surface printing for being molded with optical microstructures for washing aluminum technology
Ink (ink is water-soluble), then aluminizes, is then immersed in the water optical film, the aluminium layer containing the region for washing aluminium ink with
Wash that aluminium ink is soluble in water together and fall off, the region without washing aluminium ink retains aluminium layer, is formed and local washes aluminium pattern.
The set position precision of this method washed aluminium precision and depend on washing aluminium ink and hologram pattern.Up to the present, the set of this mode
Position precision can only achieve ± 0.2mm, can not obtain high-accuracy sleeve position printing effect.The technique is aluminized first simultaneously, then again
Aluminium is washed, technics comparing is complicated.
Summary of the invention
Aiming at the above defects or improvement requirements of the prior art, the present invention provides the patterning holographies that one kind is accurately aluminized
Security devices and preparation method thereof at least can partially solve the above problems.Technical solution of the present invention covers position for current ink
The precision of printing is not high, washes the situation of aluminium process complexity, in such a way that aluminium layer is deposited in nanometer, can effectively improve holography
The precision of aluminizing of security devices, while also simplifying operating process.
To achieve the above object, according to one aspect of the present invention, it is anti-to provide a kind of patterning holography accurately aluminized
The preparation method of pseudo- device, which is characterized in that including,
S1 is coated with one layer of nano impression coating on base membrane layer, by gradient micro nano structure by the way of nano impression
It is impressed on the coating and obtains structure sheaf；The gradient micro nano structure includes the first concaveconvex structure and the second concaveconvex structure,
Wherein the second concaveconvex structure is located at the concave face of the first concaveconvex structure；
S2 one layer of volatile layer of even spread on the crowning of the first concaveconvex structure is not coated with volatile layer on concave face；Institute
Volatile layer is stated from volatile materials coating, there is volatility；
S3 evaporated metal layer on gradient micro-and nano-structural surface is deposited on the concave face of the first concaveconvex structure and is formed
Metal layer, the concave face and crowning of the first concaveconvex structure are compared to form the hollow out effect that partial region has metal layer,
So that the gradient micro nano structure shows holographic optical and becomes antifalse effect；
S4 full version on the basis of metal layer is coated with gum layer, obtains the patterning holographic false proof device accurately aluminized.
One as technical solution of the present invention is preferred, and micro nano structure includes the first concaveconvex structure and the second concave-convex knot
Structure, wherein the second concaveconvex structure is located at the depressed section of first concaveconvex structure.
According to one aspect of the present invention, the figure that one kind that made as described above method prepares accurately is aluminized is provided
Case holographic false proof device, including the substrate layer, imaging layer and gum layer being cascading, the substrate layer is as outermost
Protective layer, the gum layer be used for by boiling hot substrate surface bonding, which is characterized in that
The imaging layer includes the structure sheaf and metal layer being stacked, and the structure sheaf side fits with substrate layer,
The other side is equipped with gradient micro nano structure, and the micro nano structure includes the first concaveconvex structure and the second concaveconvex structure,
In, the second concaveconvex structure is located at the depressed section of first concaveconvex structure, thus the micro-nano knot of the gradient for forming structure sheaf
Structure；
The metal layer is set on the concave face of the first concaveconvex structure, concave face and the crowning phase of the first concaveconvex structure
Mutually comparison forms the hollow out effect that textured layer portion region has metal layer, so that gradient micro nano structure shows holographic optical
Become antifalse effect.
One as technical solution of the present invention is preferred, and the difference in height between the first concaveconvex structure crowning and concave face is excellent
Choosing is greater than the second concaveconvex structure.
One as technical solution of the present invention is preferred, the difference in height between the crowning and concave face of the first concaveconvex structure
It is 0.5-10 microns, preferably 1-3 microns.
One as technical solution of the present invention is preferred, the difference in height between the crowning and concave face of the second concaveconvex structure
It is preferred that 50-500 nanometers, the second concaveconvex structure shows holographic optical and becomes antifalse effect.
One as technical solution of the present invention is preferred, and the thickness of metal layer is 20-80 nanometers preferred.
In general, through the invention it is contemplated above technical scheme is compared with the prior art, have below beneficial to effect
Fruit:
1) technical solution of the present invention, by the way of being precisely coated with volatile layer in advance, so that metal layer can only not waved
The position deposition for sending out layer, to obtain the hollow out metal with the concaveconvex structure accurate fit in structure sheaf including anti-counterfeiting information
Layer, realizes the precise positioning of anti-counterfeiting information, while improving holographic false proof device antiforge function, simplifies it and prepared
Journey, it is only necessary to the coating of strict control volatile layer.
2) technical solution of the present invention, using the design of gradient micro nano structure, anti-counterfeiting information (graph text information) is to use
Two-stage concaveconvex structure is come what is presented, and under the design of this two-stage concaveconvex structure, (there is concaveconvex structure area in graph text information region
Domain) and background area (no concave-convex structural region) be in different height, to further highlight the figure in concaveconvex structure region
Literary information；And this two-stage concaveconvex structure design has preferable aesthetic effect under the action of optical device.
3) technical solution of the present invention shows that bumps are tied using hollow out to the two-stage concaveconvex structure of gradient micro nano structure
The concave face and crowning of structure can use different coatings, such as the exhibition method of metal layer combination ink layer, in lenticule battle array
Under the action of column, two-stage concaveconvex structure can show more beautiful effect, meanwhile, this comparison differentiation can also be further
Increase the antifalse effect of graphic anti-counterfeiting film.
Detailed description of the invention
Fig. 1 is the structure sectional view for the patterning holographic false proof device accurately aluminized in technical solution of the present invention embodiment；
Fig. 2 is a preferred schematic diagram of gradient micro nano structure in technical solution of the present invention embodiment；
Fig. 3 is another preferred schematic diagram of gradient micro nano structure in technical solution of the present invention embodiment；
Fig. 4 is the preparation method for the patterning holographic false proof device accurately aluminized in technical solution of the present invention embodiment；
Fig. 5 is the schematic diagram that structure sheaf carries out silicon layer coating in technical solution of the present invention embodiment.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as in addition, technical characteristic involved in the various embodiments of the present invention described below
Not constituting a conflict with each other can be combined with each other.The present invention is described in more detail With reference to embodiment.
In the embodiment of technical solution of the present invention, a kind of patterning holographic false proof device accurately aluminized is specifically disclosed,
And preparation method thereof, it is illustrated below in conjunction with specific structure and preparation process.
As shown in Figure 1, being the structure sectional view for patterning holographic false proof device in the present embodiment.The holographic false proof device by
Under to upper coating squence successively are as follows: substrate layer 1, structure sheaf 2, metallic reflector 5, volatile layer 4, gum layer 3.Wherein, volatile layer 4
It is gradually evaporated into the deposition process of metallic reflector 5 completely.Stop before the volatile paint volatilization completely of volatile layer
The effect of structure sheaf local deposits metal layer can be realized in the deposition of metal layer.The deposition region of metal layer and the painting of volatile layer
Cloth effect is related.
In the present embodiment, substrate layer 1 is in the outermost of entire holographic false proof device, in entire holographic false proof device
Portion's structure plays the role of covering and protecting.The material of substrate layer can be various routines and be suitable for processing the thin of laser holographic pattern
Membrane material, for example PET biaxial stretching film etc., this is not specifically limited in this embodiment.
Structure sheaf 2 is the information carrier of holographic false proof device in the present embodiment, is one of key component.One side and substrate
Layer fits, and the other side is obtained by certain process means (such as mould pressing process) processing has one or more laser holograms anti-
Pseudo- pattern can function well as anti-fake effect in conjunction with the optical reflection effect of metallic reflector.In general, according to production
Product need, and the antiforge laser holographic pattern of structure sheaf can provide basic including the information such as manufacturer, brand mark
Anti-counterfeiting information.Further, according to the needs of product, which may carry multi-functional, such as assign release function,
The upper surface setting release layer of structure sheaf uses the resin layer with release function, and it is resistance to can also to assign holographic anti-counterfeiting label
Performance is ground, the multilayered structure that release layer, wearing layer, embossed plies etc. collectively constitute is set by structure sheaf, can also impart to it not
Same color, such as add chromatograph.
In the present embodiment, structure sheaf is preferably obtained by way of nano impression.The mode of nano impression includes UV nanometers
Coining and hot padding two ways, UV nano impression and hot padding are all traditional to prepare holographic copy method.As typical
The technique of hot padding preferably can be used acrylate material and be made, and coating temperature is 80~120 DEG C, 60~90m/ of speed
min；Holographic mould press can be used to be molded into acrylic acid by the micro-nano knot in nickel version under the conditions of 180~240 DEG C when operation
On resinous coat, structure sheaf is formed.
Micro-structure in metallic nickel version is impressed into structure preferably by way of nano impression by the micro-structure on structure sheaf
On layer.The micro-structure for being molded imaging layer is gradient micro nano structure, the concaveconvex structure including two kinds of height grades, the first estate
The difference in height of concaveconvex structure is greater than the second concaveconvex structure, and the projective structure region of the first estate concaveconvex structure is without metallic reflection
Layer, the concaveconvex structure of the second grade is contained on the surface of the depressed regions of the first estate concaveconvex structure.The concaveconvex structure of second grade
Holographic optics effect is showed, monochrome, dynamic such as based on diffraction, with position aniseikania, depth, hololens, purple light and based on anti-
Opal, platinum embossment and the Zero-order diffractive penetrated, nanocomposite optical effect etc..
In order to realize the accurate evaporated metal layer on structure sheaf, in the present embodiment, before evaporated metal layer, select in structure
One layer of volatile layer is coated on layer, coating used in volatile layer is volatile materials, such as has centainly sluggish property and volatile silicone oil.
Its principle is, in evaporated metal layer on structure sheaf, since textured layer portion region is coated with volatile materials, is being deposited
Under environment constantly volatilization cause on corresponding region can not depositing metal particles, so that metal layer can not be formed.It is waved without being coated with
The region of volatile material then can smoothly deposit, to form the effect of local deposits metal layer on structure sheaf.And structure sheaf
Then in contrast, two regions are compared and ultimately form engraved structure in the region of upper no deposited metal layer.
In other words, the coating accuracy of volatile layer determines the accuracy of deposition of metal.In the present embodiment, silicon layer
It is preferred that forming the silicon layer of 10-50nm in soft version then by way of flexographic printing using extraordinary silicone oil.The technique is
Mature technology, such as Italian Galileo vacuum equipment system silicone oil print system subsidiary with German Lay treasured vacuum aluminizing system.
The system forms uniform silicon layer using flash process (flashevo) on applicator roll, will then by flexographic printing roller
On silicone oil print structure layer.In the present embodiment, it is preferred to use full version is as galley.As shown in figure 5, in structure sheaf surface printing
When, the region that structure sheaf protrudes above is contacted with soft version, and concave region is not contacted with soft version, is formed in structure layer surface as schemed institute
There is silicon layer in the region in protrusion shown, and concave region does not have silicon layer.
Further, metal layer is also one of the key component of the patterning holographic false proof device in the present embodiment.Specifically
For, the second concaveconvex structure combination metal layer can show hologram image wherein included well.In the present embodiment
The preferred aluminium coated of metal layer metallic aluminium is deposited on structure layer surface in a manner of vacuum evaporation.Due to the first of structure sheaf
Level raised zones are printed with silicone oil, therefore are unable to deposited aluminum layer, form local hollow out effect.Due to silicone oil printed patterns with
Hologram pattern (i.e. first structure) is complementary patterns, therefore can realize that precision is aluminized.
Gum layer is in the most inner side of patterning holographic false proof device, for holographic false proof device to be affixed with marker
It closes.From substrate layer unilateral observation, which not only has holographic security technology, but also patterns effect of aluminizing with high-precision
Fruit.
In addition, one as the present embodiment is preferred, for gradient micro nano structure, if there is the hologram of large area
Case, i.e. the second concaveconvex structure region are larger, due to adagio flexible deformation and contact hologram pattern region with printing plate cylinder,
Upper silicone oil is printed on pattern, and then can not plated aluminum.For the generation for avoiding such case, supplemented as of the invention one, the
Two concaveconvex structure regions are larger, and the first estate projective structure of dot matrix is added in the second grade relief region, the dot matrix
For height with the concaveconvex structure of the first estate, size is 2-20 microns preferred, and 10-100 microns of spacing.
Core process in the preparation method is the design of concaveconvex structure and the printing of silicon layer.The design of concaveconvex structure is
It is described very much, supplement any is since in nanoimprinting process, micro-structure is all lost, i.e., micro-structure deforms, first
The projective structure of grade is deformed into circular arc etc..And the printing of silicon layer applies Cloth accessory using the silicone oil of Lay treasured aluminum-spraying machine, difference
It is using pattern-free adagio as galley, the pressure when hardness and printing of adagio has larger impact to the effect of printing,
Adagio hardness deficiency, which will lead to adagio deformation, and then cannot reach desired effects easily with the second grade microstructured contact.Suitably
Pressure and adagio hardness contact printing plate with moulding film, and do not make printing plate and the microstructured contact of the second grade best.It is logical
Crossing the above method may be implemented the volatile layer being accurately coated with out on structure sheaf Zhi with the protrusion face contact of the first concaveconvex structure, this
In embodiment specific limitation is not made to its concrete implementation mode.
In the present embodiment, due to being equipped with gradient micro nano structure, and metal layer local deposits, several structures exist below
In the protection scope of technical solution of the present invention: 1) the second concaveconvex structure is located at the concave face of the first concaveconvex structure, deposition of metal
On the concave face of the first concaveconvex structure (i.e. on the second concaveconvex structure), there is no metal layer heavy on the crowning of the first concaveconvex structure
Product, such as Fig. 2；2) the second concaveconvex structure is located at the crowning of the first concaveconvex structure, and deposition of metal is convex the first concaveconvex structure
On the face of rising (i.e. on the second concaveconvex structure), there is no deposition of metal, such as Fig. 3 on the concave face of the first concaveconvex structure.Second of knot
The application of structure is a kind of derivative, after the micro nano structure for forming gradient, as scratched by way of coating, in gradient knot
One layer of volatile silicon layer is formed on structure.One layer of thicker silicone oil is formed in the concave face of the first estate concaveconvex structure at this time, and
The crowning of first concaveconvex structure forms the silicone oil of layer, and under conditions of vacuum, silicon layer constantly volatilizees, crowning
Thin layer silicone oil preferential volatilization is complete.It aluminizes at this time, forms aluminium coated in crowning, and concave face does not have an aluminium coated, last gluing,
It forms the holographic optical that part is accurately aluminized and becomes anti false film.
Below with reference to the specific preparation process of holographic false proof device, the present invention is further illustrated.
Case study on implementation one:
(1) using 15 microns of BOPET film as base material film, substrate layer 1 is obtained；
(2) for example by the way of anilox roll coating, in pet sheet face even spread aqueous emulsifying wax, coating temperature is 80
~120 DEG C, 60~90m/min of speed forms release layer 2；
(3) continue on release layer 2 be coated with acrylic resin coating, resin layer with a thickness of 2 microns, coating temperature exists
80~150 DEG C, 60~90m/min of speed；
(4) optical graving the preparation of micro nano structure template: is carried out for the bumps of the second grade using holographic lithography machine first
Structure obtains metallic nickel version by electroforming, the coating photoresist in metallic nickel version, then prepares and the first estate concaveconvex structure figure
Metallic nickel version and mask plate are precisely covered position by magnifying glass by the corresponding mask plate of case, and set position precision reaches 1 micron, then exposes
Light, development, chemical etching go out the concave structure of the first estate, obtain the metallic nickel mother matrix with gradient micro nano structure.
(5) holographic mould press is used, under the conditions of 160~240 DEG C, by the micro-structure on metallic nickel mother matrix in heat and pressure
Under the action of, it is impressed on acrylic resin coating, forms ladder corresponding with metal mother in acrylic resin coating surface
Degree property micro nano structure.
(6) attachment is printed using the silicone oil of Lay treasured aluminum-spraying machine, using the soft version of full version as galley, is evaporated in silicone oil appropriate
Speed makes it form the silicon layer of 10-50 nanometer thickness on soft version surface.By printing, in the protrusion of the first estate of structure sheaf
Structure is contacted with adagio, and surface stamps silicone oil；And the concave structure (concaveconvex structure of the second grade) of the first estate not with it is soft
Plate contact, does not print silicone oil.
(7) by vacuum aluminum-coated, in the area deposition aluminium layer of not silicone oil, and the region of silicone oil is unable to deposited aluminum layer,
For hollow out effect.Simultaneously under conditions of vacuum, silicone oil constantly volatilizees, and the thickness of silicon layer is constantly reduced, even without.
(8) under the conditions of 80~120 DEG C, thermoprint gum is coated on metallic reflector 5；Then through the wide inspection of cutting to get
The holographic anti-counterfeiting hot stamping film aluminized to precision.
Finally, the blocking film is submitted to printing house, and during the packaging process by thermoprinting machine thermoprint in outer package surface,
Outermost substrate layer and release layer are thrown off, remaining structure sheaf, metallic reflector and gum layer are retained, to the eye, the mark
Knowing not only has holographic laser anti-counterfeiting pattern, but also there is accurate hollow out to aluminize effect.
Case study on implementation two:
(1) using 30 microns of BOPET pre-coating film as base material film, the coated on one side of the base material film has precoated shet, the precoating
Layer has stronger adhesive force, i.e. substrate layer 1 with UV coating；
(2) in the pre- coating surface of substrate layer, using reticulate pattern roller coating method, it is coated with one layer 5 microns of UV on substrate layer and applies
Layer；
(3) preparation of micro nano structure nickel version designs hologram by Photoshop using holographic lithography direct write equipment
Then case carries out photoetching, use high intensity exposure, and the first estate raised zones (second etc. in the concave region of the first estate
Grade concaveconvex structure, holographic region) use normal holographic optical parameter to obtain the micro nano structure of gradient by developing, cleaning.
(3) UV coating is bonded with the mother matrix of metallic nickel, and is exposed from the face UV, the micro nano structure in nickel version is answered
It makes on UV coating, UV coating is changed into solid-state by liquid after exposure, and micro nano structure is fixed, and forms lower surface with micro-
The structure sheaf 2 of nanostructure.
(4) attachment is printed using the silicone oil of Lay treasured aluminum-spraying machine, using the soft version of full version as galley, is evaporated in silicone oil appropriate
Speed makes it form the silicon layer of 10-50 nanometer thickness on soft version surface.By printing, silicon is stamped in the raised zones of structure sheaf
Oil, then by vacuum aluminum-coated, in the area deposition aluminium layer of not silicone oil.And there is the region of silicone oil to be unable to deposited aluminum layer, to engrave
Empty effect.Simultaneously under conditions of vacuum, silicone oil constantly volatilizees, and the thickness of silicon layer is constantly reduced, even without.
(5) under the conditions of 180 DEG C, hot-fusible pressure-sensitive adhesive is coated on metallic reflector 5, and compound with release paper；Then mould
It cuts, slitting, wide inspection is to get to refining the holographic anti-counterfeiting label product aluminized.
Preferably, in the step of above-mentioned case study on implementation one, two (4), if selection full version on gradient micro nano structure
It is coated with volatile layer (such as silicon layer), then when being deposited, the substance on the crowning of gradient micro nano structure is first waved
It distributes complete, the vapor deposition of metal layer can be carried out.Obtain at this time be have metal layer on the crowning of the first concaveconvex structure and
There is no the structural member of metal layer on concave face.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should all include
Within protection scope of the present invention.
Claims (7)
1. the preparation method for the patterning holographic false proof device that one kind is accurately aluminized, which is characterized in that including,
S1 is coated with one layer of nano impression coating on base membrane layer, is imprinted gradient micro nano structure by the way of nano impression
Structure sheaf is obtained on to the coating；The gradient micro nano structure includes the first concaveconvex structure and the second concaveconvex structure, wherein
Second concaveconvex structure is located at the concave face of the first concaveconvex structure；
S2 one layer of volatile layer of even spread on the crowning of the first concaveconvex structure is not coated with volatile layer on concave face；It is described to wave
Layer is sent out from volatile materials coating, there is volatility；
S3 evaporated metal layer on gradient micro-and nano-structural surface, deposition forms metal on the concave face of the first concaveconvex structure
Layer, deposited aluminum layer, the concave face and crowning of the first concaveconvex structure are not compared forming portion to the crowning of the first concaveconvex structure
Subregion has the hollow out effect of metal layer, so that the gradient micro nano structure shows holographic optical and becomes antifalse effect；
S4 full version on the basis of metal layer is coated with gum layer, obtains the patterning holographic false proof device accurately aluminized.
2. the preparation method for the patterning holographic false proof device that one kind according to claim 1 is accurately aluminized, wherein described
Micro nano structure includes the first concaveconvex structure and the second concaveconvex structure, wherein the second concaveconvex structure is located at the described first concave-convex knot
The depressed section of structure.
3. the patterning holographic false proof device that one kind that preparation method according to claim 1 or 2 prepares accurately is aluminized
Part, including the substrate layer, imaging layer and gum layer being cascading, the substrate layer is described as outermost protective layer
Gum layer is used to bond with by boiling hot substrate surface, which is characterized in that
The imaging layer includes the structure sheaf and metal layer being stacked, and the structure sheaf side fits with substrate layer, another
Side is equipped with gradient micro nano structure, and the micro nano structure includes the first concaveconvex structure and the second concaveconvex structure, wherein the
Two concaveconvex structures are located at the depressed section of first concaveconvex structure, to form the gradient micro nano structure of structure sheaf；
The metal layer is set on the concave face of the first concaveconvex structure, and the concave face and crowning of the first concaveconvex structure are mutually right
The hollow out effect that there is metal layer than forming textured layer portion region, so that gradient micro nano structure shows holographic optical and becomes anti-
Pseudo- effect.
4. the patterning holographic false proof device that one kind according to claim 3 is accurately aluminized, wherein the described first concave-convex knot
Difference in height between structure crowning and concave face is preferably greater than the second concaveconvex structure.
5. the patterning holographic false proof device that one kind according to claim 3 or 4 is accurately aluminized, wherein described first is recessed
Difference in height between the crowning and concave face of male structure is 0.5-10 microns, preferably 1-3 microns.
6. the patterning holographic false proof device accurately aluminized according to the described in any item one kind of claim 3~5, wherein described
Difference in height between the crowning and concave face of second concaveconvex structure is 50-500 nanometers preferred, and the second concaveconvex structure shows holography
Optically variable anti-counterfeiting effect.
7. the patterning holographic false proof device accurately aluminized according to the described in any item one kind of claim 3~6, wherein described
The thickness of metal layer is 20-80 nanometers preferred.
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| CN111986557A (en) * | 2020-08-28 | 2020-11-24 | 江阴通利光电科技有限公司 | Method for manufacturing label anti-counterfeiting film by adopting localized coating |
| CN112211035A (en) * | 2019-07-10 | 2021-01-12 | 苏州苏大维格科技集团股份有限公司 | Manufacturing method of high-registration-precision packaging paper |
| CN112613591A (en) * | 2020-12-29 | 2021-04-06 | 苏州印象镭射科技有限公司 | Anti-counterfeit label and preparation method thereof |
| CN114639326A (en) * | 2022-05-20 | 2022-06-17 | 苏州苏大维格科技集团股份有限公司 | Precise microstructure presenting three-dimensional relief image and preparation method and application thereof |
| CN112613591B (en) * | 2020-12-29 | 2024-04-09 | 苏州印象镭射科技有限公司 | Anti-counterfeiting label and preparation method thereof |
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