CN106585165B - Optical anti-counterfeit element, optical anti-counterfeiting product and preparation method thereof - Google Patents
Optical anti-counterfeit element, optical anti-counterfeiting product and preparation method thereof Download PDFInfo
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- CN106585165B CN106585165B CN201611113285.5A CN201611113285A CN106585165B CN 106585165 B CN106585165 B CN 106585165B CN 201611113285 A CN201611113285 A CN 201611113285A CN 106585165 B CN106585165 B CN 106585165B
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/30—Identification or security features, e.g. for preventing forgery
- B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
- B42D25/378—Special inks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M1/00—Inking and printing with a printer's forme
- B41M1/10—Intaglio printing ; Gravure printing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M1/00—Inking and printing with a printer's forme
- B41M1/26—Printing on other surfaces than ordinary paper
- B41M1/30—Printing on other surfaces than ordinary paper on organic plastics, horn or similar materials
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/40—Manufacture
- B42D25/45—Associating two or more layers
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Credit Cards Or The Like (AREA)
- Printing Methods (AREA)
Abstract
The present invention relates to Techniques of Optical Security field, a kind of optical anti-counterfeit element, optical anti-counterfeiting product and preparation method thereof are disclosed, which includes: substrate；Different colors is presented in fisrt feature layer on the substrate, the fisrt feature layer under different observation conditions；And the second feature layer on the substrate, different patterns is presented in the characteristic area of the second feature layer under different observation conditions, the wherein least partially overlapped formation overlapping region of the characteristic area of the fisrt feature layer and the second feature layer, the overlapping region shows different optically variable effects under different observation conditions.Special optically variable effect can be presented the invention enables optical anti-counterfeit element and using the optical anti-counterfeiting product of the optical anti-counterfeit element, improve anti-counterfeit capability.
Description
Technical field
The present invention relates to Techniques of Optical Security fields, and in particular, to a kind of optical anti-counterfeit element a kind of uses the optics
The optical anti-counterfeiting product of Security element and a kind of method for making the optically variable anti-counterfeiting element.
Background technique
In the prior art, criminal utilizes means forged banknote, card and the product such as scanning and duplicating in order to prevent
All kinds of high safeties or the high added value printed matters such as packaging, when manufacturing the said goods, Techniques of Optical Security is applied.
For example, having been widely used photochromatic printing ink anti-counterfeiting technology feature and simulation watermark feature on plastic note.Some countries
With area when transparent window is arranged, by the whole of form or part photochromatic printing ink printing image-text.Right-angle view is a kind of face
Color is tilted a certain angle and is viewed as another color.For example, the plastics paper money of the country such as Mexico, Chile, Dominica distribution.
And simulation watermark is then the production method for imitating conventional watermark, the thickness by being thinned or thickening printing ink makes the portion
The ink layer thickness of position forms certain contrast compared with the ink layer thickness at other positions, or changes the depth of printing ink colors,
So that the ink colors at the position form certain contrast compared with the color at other positions to show.
However, due to the frequent generation for forging phenomenon, the anti-fake product in the prior art using above-mentioned two technologies
Antifalse effect is still to be improved.
Summary of the invention
The purpose of the present invention is to provide a kind of optical anti-counterfeitings different from Security element optically variable effect in the prior art
The characteristics of element and optical anti-counterfeiting product for using the optical anti-counterfeit element, tool optically variable effect is abundant and hardly possible is forged.
To achieve the goals above, the present invention provides a kind of optical anti-counterfeit element, which includes: base
Material；Different colors is presented in fisrt feature layer on the substrate, the fisrt feature layer under different observation conditions；And
Second feature layer on the substrate, the spy of the second feature layer open region and different figures are presented under different observation conditions
Case, wherein the least partially overlapped formation overlapping region of the characteristic area of the fisrt feature layer and the second feature layer, not
Show different optically variable effects with the overlapping region under observation condition.
Preferably, the fisrt feature layer and the second feature layer are formed in the similar face or difference table of the substrate
Face.
Preferably, the substrate is for transparent dielectric film and including mutually contradictory first surface and second surface, institute
It states fisrt feature layer and the second feature layer is formed in the similar face of the substrate, in which: the second feature layer is formed
On the first surface of the substrate, the first functional coating, the first functional coating tool are formed on the second feature layer
There is transparent region corresponding with the overlapping region, the fisrt feature layer is covered on first functional coating；And institute
It states and is formed with underlying coating layer on the second surface of substrate, the second functional coating, the basic painting are formed on the underlying coating layer
Transparent region corresponding with the overlapping region is all had on layer and second functional coating.
Preferably, the substrate is for transparent dielectric film and including mutually contradictory first surface and second surface, institute
It states fisrt feature layer and the second feature layer is formed in the similar face of the substrate, in which: the second feature layer is formed
On the second surface of the substrate, the second functional coating, the second functional coating tool are formed on the second feature layer
There is transparent region corresponding with the overlapping region, the fisrt feature layer is covered on second functional coating；And institute
It states and is formed with underlying coating layer on the first surface of substrate, the first functional coating, the basic painting are formed on the underlying coating layer
Transparent region corresponding with the overlapping region is all had on layer and first functional coating.
Preferably, the substrate is for transparent dielectric film and including mutually contradictory first surface and second surface, institute
It states fisrt feature layer and the second feature layer is formed in the different surfaces of the substrate, in which: the first surface of the substrate
On be formed with underlying coating layer, the first functional coating, the underlying coating layer and first function are formed on the underlying coating layer
Coating all has transparent region corresponding with the overlapping region, and the fisrt feature layer is covered on first functional coating
On；The second feature layer is formed on the second surface of the substrate, and the painting of the second function is formed on the second feature layer
Layer, second functional coating have transparent region corresponding with the overlapping region.
Preferably, the substrate is for transparent dielectric film and including mutually contradictory first surface and second surface, institute
It states fisrt feature layer and the second feature layer is formed in the different surfaces of the substrate, in which: the second surface of the substrate
On be formed with underlying coating layer, the second functional coating, the underlying coating layer and second function are formed on the underlying coating layer
Coating all has transparent region corresponding with the overlapping region, and the fisrt feature layer is covered on second functional coating
On；The second feature layer is formed on the first surface of the substrate, and the painting of the first function is formed on the second feature layer
Layer, first functional coating have transparent region corresponding with the overlapping region.
Preferably, the fisrt feature layer is photochromatic printing ink layer.
Preferably, the second feature layer is level watermark layer, and the characteristic area of the level watermark includes one kind
Or a variety of transparent hollow out texts and/or pattern.
Preferably, the underlying coating layer is white coating.
Correspondingly, the present invention also provides a kind of optical anti-counterfeiting products using optical anti-counterfeit element of the invention.
In addition, the present invention also provides a kind of methods for making optically variable anti-counterfeiting element of the invention, this method comprises:
Fisrt feature layer and second feature layer are respectively printed on substrate in such a way that gravure printing apparatus is by printing chromatography,
Described in fisrt feature layer and the second feature layer characteristic area at least partly double exposure, the overlapping under different observation conditions
Region shows different optically variable effects.
Preferably, the second feature layer is level watermark layer, and the level watermark layer is made by platemaking equipment,
Wherein the gray value of the characteristic area of the level watermark layer is set as from the center to edge gradual change.
Through the above technical solutions, the fisrt feature layer of different colors is presented under different observation conditions and in different observations
Under the conditions of the least partially overlapped formation overlapping region of second feature layer of different patterns is presented, this is heavy under different observation conditions
Folded region shows different optically variable effects, enable optical anti-counterfeit element and using the optical anti-counterfeit element optical anti-counterfeiting product
Special optically variable effect is presented, improves anti-counterfeit capability.
Other features and advantages of the present invention will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
The drawings are intended to provide a further understanding of the invention, and constitutes part of specification, with following tool
Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the sectional view of optical anti-counterfeit element according to an embodiment of the present invention；
Fig. 2 is the sectional view of optical anti-counterfeit element according to an embodiment of the present invention；
Fig. 3 is the plastic note schematic diagram with level watermark；
Fig. 4 is photochromatic printing ink (OVI) printed patterns schematic diagram；
Fig. 5 is plastic basis material backing transparent area schematic；
Fig. 6 is the sectional view of optical anti-counterfeit element according to an embodiment of the present invention；
Fig. 7 is the sectional view of optical anti-counterfeit element according to an embodiment of the present invention；And
Fig. 8 is the sectional view of optical anti-counterfeit element according to an embodiment of the present invention；
Specific embodiment
Optical anti-counterfeit element according to the present invention optical anti-counterfeiting according to the present invention is described in detail below in conjunction with attached drawing
Element, to more fully understand thought of the invention.It should be appreciated that the attached drawing and detailed description are only to of the invention preferred real
The description of mode is applied, is not limited the scope of the invention in any way.
Fig. 1 is the sectional view of optical anti-counterfeit element according to an embodiment of the present invention, as shown in Figure 1, the present invention mentions
The optical anti-counterfeit element supplied may include: substrate 1；Fisrt feature layer 8 on the substrate 1, the fisrt feature layer 8 exist
Different colors is presented under different observation conditions；And the second feature layer 2 on the substrate 1, the second feature layer 2
Different patterns is presented in characteristic area under different observation conditions, wherein the fisrt feature layer 8 and the second feature layer 2
The least partially overlapped formation overlapping region of characteristic area, the overlapping region shows different optically variable effects under different observation conditions.
Preferably, the fisrt feature layer 8 and the second feature layer 2 be formed in the substrate 1 similar face (such as
As shown in Figure 1 is both formed on first surface 11, and underlying coating layer 5 is formed on corresponding second surface 12) or different surfaces (by
It shows in the following embodiments, is respectively formed at first surface 11 and second surface 12).Various embodiments are provided below to come in detail
Thought of the invention is carefully described:
Embodiment 1
Fig. 2 is the sectional view of optical anti-counterfeit element according to an embodiment of the present invention, as shown in Fig. 2, the optics is anti-
Pseudo- element may include: substrate 1, second feature layer 2, the first functional coating 3,4, fisrt feature layer 8, underlying coating layer 5, the second function
It can coating 6,7.The fisrt feature layer and the second feature layer be formed in the substrate similar face (front, i.e., first
Surface 11).
Specifically, the substrate 1 is for transparent dielectric film and including mutually contradictory first surface 11 and second surface
12, the substrate 1 can be transparent dielectric film, wherein substrate 1 can generally good by resistance to physical and chemical performance and high mechanical strength
Thin-film material formed, it is, for example, possible to use polyethylene terephthalate (PET) films, polyethylene naphthalate
(PEN) plastic films such as film and polypropylene (PP) film form substrate 1, and substrate 1 can be preferably formed by BOPP material.
The second feature layer can be level watermark (A&C) coating, and the characteristic area of the level watermark can be gray scale
Radial gradual form is also possible to linear gradient, the diversified forms such as on the spot.The hollow out text in this feature region can for letter,
Number, Chinese character or other character styles, are also possible to figure, mark etc., which at least may include one or more
Transparent hollow out text, pattern or mark, wherein with the simulation watermark of gray-level fade effect around hollow out text or pattern.
For example hollow out text B (" 5 ") be can be.Fig. 3 is the plastic note schematic diagram with level watermark, as shown in figure 3, wherein
The characteristic area of level watermark can be " Z ".
The fisrt feature layer 8 can be photochromatic printing ink OVI layer, can for optical thin film ink OVI (such as Sicpa public affairs
Take charge of the OVI ink produced) or liquid crystal OVI, pearl ink or novel mica titanium OVI.But preferably, optical thin film oil
Black application is extensive, and optically variable effect is preferable.Fig. 4 is photochromatic printing ink OVI printed patterns schematic diagram, as shown in figure 4, the pattern can be with
For patterns such as flower, polygon, stars.The characteristic area of the fisrt feature layer 8 and second feature layer 2 carries out double exposure, it can
Partly overlap or all overlapping printing form overlapping region, the overlapping region under different observation conditions (such as reflected light or thoroughly
Penetrate striation part) it can be realized special optically variable effect.The light of the photochromatic printing ink, which becomes color, can be the face of any optically-variable
Color (such as E to F).
The first functional layer can be added between fisrt feature layer and second feature layer, i.e. such as conductive layer 3 and printing layer 4
Deng functional coating, with for improving the anti-resistive in surface and printability.Wherein the conductive layer 3 of first surface, which can be used, leads
The ink etc. of electric pigment production is formed, and the formation such as titanium dioxide pigment can be used in the printing layer 4 of first surface.
In the second surface 12 (i.e. the back side) of substrate 1, the background colors coatings such as underlying coating layer 5, such as white coating are printed first,
The second functional coating is printed later, i.e. the functional coating such as the printing layer 7 of the conductive layer of second surface 6 and second surface.
The ink etc. that wherein conducting pigment production can be used in the conductive layer 6 of second surface is formed, and the printing layer 7 of second surface can make
It is formed with titanium dioxide pigment etc..In printing process, overlapping region (or referred to as viewing window position) is reserved, does not print.Fig. 5 is plastics
Substrate backside transparent region schematic diagram is presented different light and becomes as shown in figure 5, finally can be realized substrate front, overleaf observing
Color.
I.e. in the embodiment 1, the fisrt feature layer 8 and the second feature layer 2 are formed in the identical of the substrate 1
Surface, the second feature layer 2 can be formed on the first surface 11 of the substrate 1, be formed on the second feature layer 2
First functional coating 3,4, first functional coating 3,4 have transparent region corresponding with the overlapping region, described first
Characteristic layer 8 is covered on first functional coating；And underlying coating layer 5, institute are formed on the second surface 12 of the substrate 1
It states and is formed with the second functional coating 6,7 on underlying coating layer 5, all had on the underlying coating layer 5 and second functional coating 6,7
Transparent region corresponding with the overlapping region, as shown in Figure 5.
Substrate front, overleaf observing can be realized using such embodiment 1, different light is presented and becomes color:
1. front observation:
(1) light of viewed in reflected light, the visible presentation E color of right-angle view becomes pattern A (flower), is tilted a certain angle
Observation, it is seen that light, which becomes pattern color, becomes F color (green) from E color (gold)；
(2) it is observed under transmitted light, it is seen that it is in E color that light, which becomes pattern A, and bloom effect is presented in intermediate hollow out text B (" 5 "),
Similar white watermark；
(3) by reflected light tilt variation, under black background, it is seen that the hollow out text B (" 5 ") of black is indistinct, borrows
Transmitted light tilt variation is helped, under white background, it is seen that the hollow out text B (" 5 ") of bloom is indistinct.
2. overleaf observing:
(1) under reflected light, it is seen that hollow out text B (" 5 ") and visible light become pattern A (flower) and present with color change
Light becomes combination pattern；
1) right-angle view, it is seen that A is generated by E (gold) color to depth F to B gradual change again to the face of (dark green again to light green color) shallow F
Color change；
2) oblique view, it is seen that B (" 5 ") is gradually F color (green) by E (gold) discoloration, until disappearing under certain angle.
(2) viewed in transmitted light, it is seen that it is in F color (green) that light, which becomes pattern (A), and a bloom is presented among F color A pattern (flower)
The B (" 5 ") of reverse phase.
Embodiment 2
Fig. 6 is the sectional view of optical anti-counterfeit element according to an embodiment of the present invention, as shown in fig. 6, the optics is anti-
Pseudo- element may include: substrate 1, second feature layer 2, the first functional coating 3,4, fisrt feature layer 8, underlying coating layer 5, the second function
It can coating 6,7.
In the embodiment 2, the difference from embodiment 1 is that, the fisrt feature layer 8 and 2 shape of second feature layer
At the different surfaces in the substrate, as shown in fig. 6, level watermark layer is located at the back side of substrate, in order to reach and 1 phase of embodiment
Same optically variable effect (as described above, details are not described herein), needs to carry out the mode of front and back chromatography, and technology difficulty increases.Under
Face only describes and the difference of embodiment 1:
It is formed on the first surface 11 of the substrate 1 underlying coating layer 5 (such as the background colors such as white coating layer), it is described basic
Be formed with the first functional coating 3,4 on coating 5, the underlying coating layer 5 and first functional coating 3,4 all have with it is described heavy
The folded corresponding transparent region in region, the fisrt feature layer 8 are covered on first functional coating 3,4；The second feature
Layer 2 is formed on the second surface 12 of the substrate 1, and the second functional coating 6,7 is formed on the second feature layer 2, described
Second functional coating 6,7 has transparent region corresponding with the overlapping region.
Embodiment 3
Fig. 7 is the sectional view of optical anti-counterfeit element according to an embodiment of the present invention, as shown in fig. 7, the optics is anti-
Pseudo- element may include: substrate 1, second feature layer 2, the first functional coating 3,4, fisrt feature layer 8, underlying coating layer 5, the second function
It can coating 6,7.
In the embodiment 3, the difference with embodiment 1,2 is, the fisrt feature layer 8 and the second feature layer 2
It is formed in the similar face of the substrate, i.e. second surface (back side), as shown in fig. 7, realizing by mode of printing in hollow out text
It is different from embodiment 1 on the design direction of word or pattern, while the effect presented is opposite with the effect of embodiment 1-2.Below only
The difference of description and embodiment 1:
The second feature layer 2 is formed on the second surface 12 of the substrate 1, is formed on the second feature layer 2
Second functional coating 6,7, second functional coating 6,7 have transparent region corresponding with the overlapping region, described first
Characteristic layer 8 is covered on 6,7 on second functional coating；And underlying coating layer is formed on the first surface 11 of the substrate 1
5, it is formed with the first functional coating 3,4 on the underlying coating layer 5, on the underlying coating layer 5 and first functional coating 3,4
With transparent region corresponding with the overlapping region.
Embodiment 4
Fig. 8 is the sectional view of optical anti-counterfeit element according to an embodiment of the present invention, as shown in figure 8, the optics is anti-
Pseudo- element may include: substrate 1, second feature layer 2, the first functional coating 3,4, fisrt feature layer 8, underlying coating layer 5, the second function
It can coating 6,7.
In the embodiment 4, the difference with embodiment 1,2,3 is, the fisrt feature layer 8 and the second feature layer
2 are formed in the different surfaces of the substrate, as shown in figure 8, the level watermark layer of which is located at substrate front, OVI layers are located at
The back side of substrate, the optically variable effect of presentation is with embodiment 1-2 on the contrary, same as Example 3.It only describes and embodiment 1 below
Difference:
It is formed with underlying coating layer 5 on the second surface 12 of the substrate 1, is formed with the second function on the underlying coating layer 5
Coating 6,7, the basic painting 5 and second functional coating 6,7 all have transparent region corresponding with the overlapping region, institute
Fisrt feature layer 8 is stated to be covered on second functional coating 6,7；
The second feature layer 2 is formed on the first surface 11 of the substrate 1, is formed on the second feature layer 2
First functional coating 3,4, first functional coating 3,4 have transparent region corresponding with the overlapping region.
It should be understood that the purpose of the present invention may be implemented in above-described embodiment 1-4, therefore those skilled in the art can
To select the combination and other alternatives of one or more of above-mentioned implementation 1-4, these embodiment party according to the actual situation
Formula each falls within protection scope of the present invention.
Optical anti-counterfeit element according to the present invention can be applied to the transfer of the forms such as mark, the wide item of thermoprint, joint strip or paste
Onto carrier.These carriers can be the high safety product such as banknote, security, credit card, passport, be also possible to high added value
Commodity.
Another aspect of the present invention provides the optical anti-counterfeiting product using the optical anti-counterfeit element, and the optical anti-counterfeiting produces
Product can include but is not limited to all kinds of high safety products such as banknote, credit card, passport, marketable securities and high value added product, with
And each wrapping paper, packing box etc..
In addition, correspondingly the present invention also provides a kind of method for making optically variable anti-counterfeiting element, this method be can wrap
It includes: fisrt feature layer and second feature layer being respectively printed at substrate in such a way that gravure printing apparatus is by printing chromatography
On, wherein the characteristic area at least partly double exposure of the fisrt feature layer and the second feature layer, under different observation conditions
The overlapping region shows different optically variable effects.
According to described in above-described embodiment 1-4, the second feature layer can be level watermark layer, the fisrt feature
Layer can be photochromatic printing ink OVI layers.The level watermark layer can be made by platemaking equipment, wherein the level watermark
The gray value of the characteristic area of layer is set as from the center to edge gradual change.Wherein gradual change range can be set to 0%-100%, excellent
Selection of land can be set to 20%-90%, 30%-80% etc..It should be understood that those skilled in the art can be according to reality
Situation selects various gradual change ranges, and to reach fade effect, various gradual change ranges are each fallen in protection scope of the present invention, herein
No longer enumerate.Wherein the level watermark layer is located at the lower section of OVI ink layer, but can also realize phase by converting hierarchical sequence
The production of same or different-effect Security element, such as the position of fisrt feature layer and second feature layer shown in embodiment 1-4
Relationship.Fisrt feature layer and second feature layer can be formed in identical or different surface.
In addition, when making the optically variable anti-counterfeiting element, transparent region is preferably more than double exposure area in embodiment 1-4
Domain, so as to front and back observation.And the range of the level watermark region is preferably less or equal to photochromatic printing ink printing area
Domain prevents and shows money or valuables one carries unintentionally.
Certain preferred embodiments of the invention are exemplarily only described above.But those skilled in the art can manage
Solution can make various equivalents or modification, these etc. under the premise of without departing from present inventive concept and spirit to the present invention
It is all belonged to the scope of protection of the present invention with transformation or modification.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, can be combined in any appropriate way, in order to avoid unnecessary repetition, the present invention to it is various can
No further explanation will be given for the combination of energy.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should also be regarded as the disclosure of the present invention.
Claims (10)
1. a kind of optical anti-counterfeit element, which is characterized in that the optical anti-counterfeit element includes:
Substrate, including mutually contradictory surface；
Fisrt feature layer on the substrate, the fisrt feature layer are photochromatic printing ink layer, are presented under different observation conditions
Different colors；And
Second feature layer on the substrate, the second feature layer are level watermark layer, the feature of the level watermark layer
The gray value in region is set as from the center to edge gradual change, wherein the printed patterns of the photochromatic printing ink layer and the level watermark
The least partially overlapped formation overlapping region of characteristic area of layer, from another table opposite with the surface where the fisrt feature layer
When overlapping region described in face and under reflected light right-angle view, color change effect can be presented in the overlapping region.
2. optical anti-counterfeit element according to claim 1, which is characterized in that the fisrt feature layer and the second feature
Layer is formed in the similar face or different surfaces of the substrate.
3. optical anti-counterfeit element according to claim 2, which is characterized in that the substrate is transparent dielectric film and wraps
Mutually contradictory first surface and second surface are included, the fisrt feature layer and the second feature layer are formed in the substrate
Similar face, in which:
The second feature layer is formed on the first surface of the substrate, and the painting of the first function is formed on the second feature layer
Layer, first functional coating have transparent region corresponding with the overlapping region, and the fisrt feature layer is covered on described
On first functional coating；And
It is formed with underlying coating layer on the second surface of the substrate, the second functional coating is formed on the underlying coating layer, it is described
Transparent region corresponding with the overlapping region is all had on underlying coating layer and second functional coating.
4. optical anti-counterfeit element according to claim 2, which is characterized in that the substrate is transparent dielectric film and wraps
Mutually contradictory first surface and second surface are included, the fisrt feature layer and the second feature layer are formed in the substrate
Similar face, in which:
The second feature layer is formed on the second surface of the substrate, and the painting of the second function is formed on the second feature layer
Layer, second functional coating have transparent region corresponding with the overlapping region, and the fisrt feature layer is covered on described
On second functional coating；And
It is formed with underlying coating layer on the first surface of the substrate, the first functional coating is formed on the underlying coating layer, it is described
Transparent region corresponding with the overlapping region is all had on underlying coating layer and first functional coating.
5. optical anti-counterfeit element according to claim 2, which is characterized in that the substrate is transparent dielectric film and wraps
Mutually contradictory first surface and second surface are included, the fisrt feature layer and the second feature layer are formed in the substrate
Different surfaces, in which:
It is formed with underlying coating layer on the first surface of the substrate, the first functional coating is formed on the underlying coating layer, it is described
Underlying coating layer and first functional coating all have transparent region corresponding with the overlapping region, and the fisrt feature layer covers
It covers on first functional coating；
The second feature layer is formed on the second surface of the substrate, and the painting of the second function is formed on the second feature layer
Layer, second functional coating have transparent region corresponding with the overlapping region.
6. optical anti-counterfeit element according to claim 2, which is characterized in that the substrate is transparent dielectric film and wraps
Mutually contradictory first surface and second surface are included, the fisrt feature layer and the second feature layer are formed in the substrate
Different surfaces, in which:
It is formed with underlying coating layer on the second surface of the substrate, the second functional coating is formed on the underlying coating layer, it is described
Underlying coating layer and second functional coating all have transparent region corresponding with the overlapping region, and the fisrt feature layer covers
It covers on second functional coating；
The second feature layer is formed on the first surface of the substrate, and the painting of the first function is formed on the second feature layer
Layer, first functional coating have transparent region corresponding with the overlapping region.
7. optical anti-counterfeit element according to claim 1, which is characterized in that the characteristic area of the level watermark layer
Including one or more transparent hollow out texts and/or pattern.
8. according to optical anti-counterfeit element described in any one of claim 3-6 claim, which is characterized in that the basic painting
Layer is white coating.
9. a kind of optical anti-counterfeiting using optical anti-counterfeit element described in any one of -8 claims according to claim 1 produces
Product.
10. a kind of method for making optical anti-counterfeit element described in any one of claim 1-8 claim, feature
It is, this method comprises:
Fisrt feature layer and second feature layer are respectively printed at substrate in such a way that gravure printing apparatus is by printing chromatography
On, wherein the fisrt feature layer is photochromatic printing ink layer, the second feature layer is level watermark layer, the level watermark layer
The gray value of characteristic area is set as from the center to edge gradual change, the printed patterns of the photochromatic printing ink layer and the level watermark
The characteristic area at least partly double exposure of layer is to form overlapping region, from opposite with the surface where the fisrt feature layer another
When overlapping region described in surface and under reflected light right-angle view, color change effect can be presented in the overlapping region.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110744948B (en) * | 2018-07-24 | 2021-06-18 | 中钞特种防伪科技有限公司 | Magnetic anti-counterfeiting element and anti-counterfeiting product using same |
| CN109849439A (en) * | 2018-12-17 | 2019-06-07 | 佛山市易晟达科技有限公司 | A kind of cover board |
| CN109673116A (en) * | 2018-12-17 | 2019-04-23 | 佛山市易晟达科技有限公司 | A kind of anti-dazzle cover board |
| CN112659784B (en) * | 2019-10-16 | 2023-10-10 | 勤伦股份有限公司 | Printed matter with anti-fake function |
| CN112874202B (en) * | 2021-01-11 | 2021-12-21 | 中钞印制技术研究院有限公司 | Method for producing a security element and security element |
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Address after: 100070 No. 6 Spark Road, Science City, Beijing, Fengtai District Patentee after: ZHONGCHAO SPECIAL SECURITY TECHNOLOGY Co.,Ltd. Patentee after: China Banknote Printing and Minting Group Co.,Ltd. Address before: 100070 No. 6 Spark Road, Science City, Beijing, Fengtai District Patentee before: ZHONGCHAO SPECIAL SECURITY TECHNOLOGY Co.,Ltd. Patentee before: CHINA BANKNOTE PRINTING AND MINTING Corp. |