CN208180497U - A kind of system that optomagnetic double fields form variable security pattern - Google Patents
A kind of system that optomagnetic double fields form variable security pattern Download PDFInfo
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- CN208180497U CN208180497U CN201721095861.8U CN201721095861U CN208180497U CN 208180497 U CN208180497 U CN 208180497U CN 201721095861 U CN201721095861 U CN 201721095861U CN 208180497 U CN208180497 U CN 208180497U
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Abstract
The utility model provides a kind of system that optomagnetic double fields form variable security pattern, comprising: surface printing or the printing element coated with derivable ink coating and at least a set of optomagnetic double field units for forming variable security pattern on printing element surface, the printing element sequence is by least a set of optomagnetic double field units；Each optomagnetic double field units include the magnetic field being oppositely arranged and have the light field of solidification function to the ink coating being printed on substrate, and the printing element passes through between light field and magnetic field；Light field in optomagnetic double field units a set of at least within by variable controllable smooth roll, be linearly writing light source or laser is formed, different time points, the controllable smooth roll is linearly writing light source or the luminous point of laser is controlled to form unique light field pattern, so that the corresponding with the light field pattern of the ink coating on printing element surface is partially cured to form unique safety design.The system of the utility model is remarkably improved the complexity and safety of safety design.
Description
Technical field
The utility model belongs to anti-counterfeiting printing technology field more particularly to one kind is mainly used in paper currency printing field, tool
Body is related to a kind of preparation system of optomagnetic double fields formation variable security patterns.
Background technique
In October, 2015 hundred yuan of banknotes of new edition with honorable color shifting ink of Chinese people's issued by banks, core technology
It is exactly the magnetic optically ink of JDSU company and Sicpa company joint development, application of the JDSU company for magnetic optically ink
Technology has registered a large amount of patent, and core is that 200480018382.5 applied for 2004 " are induced by magnetic fields the most
The method and apparatus of pattern are generated in the coating containing magnetic-particle ", the technology is on the multinational banknote such as Euro, pound is anti-fake
Should；It is worth mentioning that the core technology element that JDSU company and Sicpa company form security printing pattern is printing
Pattern and magnetic version pattern.
The purpose of this utility model is to explore a kind of more complicated, the higher paper currency printing scheme of anti-fake degree and equipment.
Utility model content
The purpose of this utility model is achieved through the following technical solutions:
A kind of system that optomagnetic double fields form variable security pattern comprising: surface printing is coated with derivable oil
The printing element of black coating and at least a set of optomagnetic double fields for forming variable security pattern on the printing element surface are single
Member, the printing element sequence is by least a set of optomagnetic double field units；Each optomagnetic double field units include opposite set
The magnetic field set and the light field for having solidification function to the ink coating being printed on substrate, the printing element is from light field and magnetic field
Between pass through, in the process, the magnetic field is to the ink coating in the area corresponding with magnetic field on the printing element surface
Interior pigment flakes are induced, its orientation, while the part corresponding with the light field of the ink coating and quilt are changed
The light field solidification；Light field in optomagnetic double field units a set of at least within by variable controllable smooth roll, be linearly writing light source or
Laser is formed, different time points, and the controllable smooth roll is linearly writing light source or the luminous point of laser is controlled to form unique light
Field pattern, so that the corresponding with the light field pattern of the ink coating on printing element surface is partially cured to form unique peace
Complete pattern.
Optomagnetic double fields further include: be set to the transmission device between two magnetic poles in the magnetic field or at the monopole of magnetic field
And occulter；The controllable smooth roll is set to above the printing element, and the occulter is set to the controllable smooth roll and institute
It states between printing element, for blocking the controllable smooth roll for only to the exposed outgoing-line type gap of the printing element, the biography
Send device for driving the printing element mobile relative to the occulter；By the rolling of the controllable smooth roll, described
Under the action of magnetic field, the pattern of controllable calender roll surface is transferred to the printing element surface by the line style gap, meanwhile,
The magnetic field that the shape in the magnetic field or the pattern of magnetic pole surfaces are formed forms magnetic version pattern on the printing element surface.
The line width in the line style gap is 0.1-3 millimeters, and the luminescence unit on the controllable smooth roll is that physical size is little
In 0.1-3 square millimeters of rectangle.
Preferably, the transmission device below the controllable smooth roll and printing element are plane, pass through the biography
The unidirectional translation of device is sent to realize that the pattern on pattern smooth roll is transferred to the surface of the printing element；Alternatively, the transmission dress
It is set to cylindric transfer roller, the occulter is matched with the shape of the transfer roller.
Preferably, the magnetic field is permanent magnetic field, electromagnetic field and the crawler type magnetic field synchronous with transmission device；The permanent magnetic field
Or the shape of electromagnetic field is cylindricality, the shape of a hoof, uniform magnetic field or ball crown type magnetic field, the crawler type magnetic field is the shoe of rubber magnetic-type
The crawler belt of band or clamping magnetic version.
The system that another optomagnetic double fields form variable security pattern comprising: surface printing has derivable ink to apply
Layer printing element and for the printing element surface formed variable security pattern optomagnetic double fields；Optomagnetic double field packets
Light field and magnetic field are included, the light field is constituted by being linearly writing light source, and the magnetic field is crawler type magnetic field or fixed magnetic field；It is described
Optomagnetic double fields further include the transmission device for transmitting the printing element, and the printing element, which is set to, described is linearly writing light
Between source and the magnetic field, when the magnetic field is crawler type magnetic field, the crawler type magnetic field is synchronous with the transmission device, leads to
The control for being linearly writing light source and the movement in crawler type magnetic field is crossed to shift the pattern for being linearly writing light source pre-write
The extremely printing element surface, meanwhile, the crawler type magnetic field forms magnetic version pattern on the printing element surface；When described
When magnetic field is fixed magnetic field, the pattern for being linearly writing light source pre-write is turned by the control for being linearly writing light source
The printing element surface is moved to, meanwhile, the magnetic field of the pattern formation of the shape or magnetic pole surfaces in the magnetic field is in the printing
Substrate surface forms magnetic version pattern.
Preferably, the crawler type magnetic field is the crawler belt of rubber magnetic-type or the crawler belt of clamping magnetic version.
Preferably, the single light source for being linearly writing light source and being made of several single-points write-in light source, passes through control
The variation of the optical signal of overall linear write-in light source is realized in the open and close of single-point write-in light source, to being printed on substrate
Ink coating have a solidification function, the line width of every row's light source is 0.1-3 millimeters, and preferably 0.5-1 millimeters, luminescent system is by answering
It is formed by combining with optical system, fibre system and baffle plate.
Preferably, the luminous component for being linearly writing light source is the rectangle no more than 0.1-1 square millimeters.
The principles of the present invention are: by the ink coating on printing element surface carry out cutting, in particular to: magnetic version pattern
It is built-up according to the distribution in magnetic field and the distribution of magnet；Printing element surface printing has derivable ink logo, this
Pigment flakes inside a pattern can be induced according to the pattern in magnetic field in magnetic field, the orientation of pigment flakes is caused to occur
Variation, so that magnetic field pattern be made to be transferred to ink logo；Again due to light field be it is variable, by the printing after induced by magnetic field
The ink of substrate surface is then again by the light field pattern type of controllable variable
Compared with the existing technology, the utility model has the advantage that
The effect after light field and magnetic field double action is presented using the derivable ink logo on its surface for the utility model；
Since light field is controllable, each safety design of formation has controllable difference, to complete the machine readable formula of anti-fake requirement of tracing to the source
One one yard of object or machine readable formula hidden pattern.The safety design safety of the utility model formation, antifalsification are higher, and can trace to the source function
It can be stronger.It is more complicated in the complexity of the utility model formation security pattern, it is more abundant comprising information；It is answered actual
The quantity that multiple groups controllable smooth roll and magnetic field pattern can also be increased in, forms increasingly complex security pattern, reaches more difficult
With the purpose of duplication.
Detailed description of the invention
Fig. 1 is the cross-section structure signal that optomagnetic double fields of the utility model embodiment one form the system of variable security pattern
Figure；
Fig. 2 is the schematic perspective view of the controllable smooth roll of the utility model embodiment one；
Fig. 3 is the section knot that the optomagnetic double fields of another kind of the utility model embodiment one form the system of variable security pattern
Structure schematic diagram；
Fig. 4 is the cross-section structure signal that optomagnetic double fields of the utility model embodiment two form the system of variable security pattern
Figure.
Specific embodiment
Embodiment one:
The present embodiment provides a kind of systems that optomagnetic double fields form variable security pattern comprising: surface printing has and can lure
The printing element for the ink coating led and for the printing element surface formed variable security pattern optomagnetic double field systems.
Optomagnetic double field systems include light field and magnetic field, specifically, light field is formed by controllable smooth roll, as shown in Fig. 2, controllable light
Roller is the roller surface in certain size, and array installs several individually controllable ink coatings being printed on substrate and has solidification
The light source unit of function, it is desirable that these light source units are throughout the surface of entire roller.By the light source list for controlling calender roll surface
The switch of member, lights the light source unit of certain specific positions in different time points, so that different optical designs is formed, the optics
Pattern is then transferred in the coating on printing element surface；Magnetic field is used to form magnetic chart in the coating surface of the printing element
Case can be permanent magnetic field, electromagnetic field, be also possible to crawler type magnetic field.Permanent magnetic field or the shape of electromagnetic field can be cylindricality, horse
Ungulate, uniform magnetic field or ball crown type magnetic field, the crawler type magnetic field are the crawler belt of rubber magnetic-type or the crawler belt of clamping magnetic version.
Specific to the present embodiment, as shown in Figure 1, the magnetic field of optomagnetic double fields is upper and lower two magnetic poles, 1,2 shape disposed in parallel
At uniform magnetic field and the controllable smooth roll 3, the occulter 4, transmission device 5 that are set between two magnetic poles 1,2 in the magnetic field
And there is the printing element 6 of derivable ink logo by the surface printing that the transmission device 5 transmits.The controllable smooth roll 3 is arranged
Above the printing element 6, which is set between controllable smooth roll 3 and printing element 6, for hiding controllable smooth roll
Gear is only to the exposed outgoing-line type gap of the printing element 6, the transmission device 5 is for driving printing element 6 relative to occulter 4
It is mobile；By the rolling of controllable smooth roll 3, under the influence of a magnetic field, the pattern lighted on controllable 3 surface of smooth roll is passed through into the line
Type gap is transferred to 6 surface of printing element, meanwhile, the magnetic field of the pattern formation of the shape or magnetic pole surfaces in the magnetic field is described
6 surface of printing element forms magnetic version pattern.The line style gap, can be straight line, be also possible to the pattern of linear.
The width in the line style gap of the present embodiment is 0.1-3 millimeters, preferably 0.5-1 millimeters, the luminous list on controllable smooth roll 3
Member is that physical size is rectangle in 0.1-3 square millimeters.
In the present embodiment, transmission device 5 is conveyer belt.
The present embodiment another kind system structure as shown in figure 3, by the way of " circle turn circle ", structure with it is shown in FIG. 1
Structure is similar, and difference is only that: being in the transmission device that upper and lower two magnetic pole 10,20 disposed in parallel is located at below pattern smooth roll 30
Cylindric transfer roller 50, cylindric 50 rotation of transfer roller roll, so that it is located at the printing element 60 on its surface by its roller transfer,
To which the pattern on 30 surface of pattern smooth roll to be transferred to the surface of the printing element 60.
As shown in Fig. 2, in the light source unit on controllable 3 surface of smooth roll, " V " word is presented in the part being lit sometime
The ink of the printing element 6 or 60 surfaces that pass through below controllable smooth roll 3 is solidified, is made by shape, these light source units lighted
" V " font is also presented in the ink portions that must be cured.Subsequent time, the portion being lit in the light source unit on controllable 3 surface of smooth roll
Point may be presented other patterns, and by the pattern be transferred to by printing element 6 or 60 surface.In this way, each moment can
The pattern controlled on smooth roll 3 is different, so that the pattern that the printing element 6 or 60 surface inks that pass through are cured is also different, thus real
Existing safety design is variable, rather than unalterable.And the pattern that the light source unit that controllable smooth roll 3 is lit is formed, then being can be with
By manual control or intelligent control.
Embodiment two:
The present embodiment provides a kind of system that optomagnetic double fields form variable security pattern, differences approximate with embodiment one
It is only that, the light field of use is different.
As shown in figure 4, optomagnetic double fields of the present embodiment include be oppositely arranged up and down be linearly writing light source 300 and crawler belt
Formula magnetic field 100, further includes the transmission device 500 for transmitting the printing element 600, and the printing element 600 is set to institute
It states and is linearly writing between light source 300 and the magnetic field 100, the crawler type magnetic field 100 is synchronous with the transmission device 500, leads to
The control for being linearly writing light source 300 and the movement in crawler type magnetic field 100 are crossed by 300 pre-write of light source that is linearly writing
Pattern is transferred to 600 surface of printing element, meanwhile, the crawler type magnetic field 100 on 600 surface of printing element
Form magnetic version pattern.The crawler type magnetic field 100 is the crawler belt of rubber magnetic-type or the crawler belt of clamping magnetic version.
It is described be linearly writing light source 300 by several single-points write-in light source form it is single can be to 600 table of printing element
The ink coating of face printing has the light source of solidification function, realizes entirety by controlling the open and close of the single-point write-in light source
It is linearly writing the variation of the optical signal of light source 300, so that continuing through the printing element 600 for being linearly writing 300 lower section of light source
Special pattern is presented in the ink coating on surface.The line width of every row's light source be 0.1-3 millimeters, preferably 0.5-1 millimeters, luminescent system
It is formed by combining by applied optics system, fibre system and baffle plate.The luminous component for being linearly writing light source is no more than 0.1-1
The rectangle of square millimeter.
Printing element 600 is synchronous with crawler type magnetic field 100, is equivalent to external magnetic field and printed patterns are when standing one section relatively
Between.In this way, the light for being linearly writing light source 300 passes through line style gap, in printing element 600 with the movement of printing element 600
Continuous surface form light field pattern, simultaneously as 600 synchronizing moving of crawler type magnetic field 100 and printing element, therefore, crawler belt
Formula magnetic field 100 carries out induction to the pigment flakes in the ink logo on 600 surface of printing element to form magnetic version pattern.
Another implementation method of the present embodiment are as follows: magnetic field be it is fixed, pass through it is described be linearly writing light source control will
The pattern for being linearly writing light source pre-write is transferred to the printing element surface, meanwhile, the shape or magnetic pole in the magnetic field
The magnetic field that the pattern on surface is formed carries out induction by the pigment flakes in the ink logo to printing element surface to make magnetic field
Pattern is transferred to ink logo, is also just forming magnetic version pattern on the printing element surface.
It is exemplified below an example for being linearly writing light source of the present embodiment, is linear premise in the line style gap
Under, during printing element passes through below the line style gap, each moment, be linearly writing light source some or certain
Single-point write-in light source on a little specific positions, which is controlled, to be lighted, other single-points write-in light source is closed, in a period of time, institute
Stating and being linearly writing the pattern of light source igniting part presentation is exactly " 5 ", the pre-write pattern as in this example, by can be traced in figure
The single-point write-in light source of which position of each second, which is controlled, to be lighted, for example, the 10th second.In the ink logo on printing element surface
Pigment flakes by it is described be linearly writing light source induction obtain the pattern " 5 ", it may be assumed that be linearly writing light source for the pattern and be transferred to print
In the ink logo of brush substrate surface.And subsequent time period, new pre-write pattern can be freely presented again by being linearly writing light source.
Embodiment three:
The present embodiment uses two sets of optomagnetic double field systems, it is intended to prepare a kind of more complicated variable optomagnetic double field figures
Case.
Specifically, first optomagnetic double fields include the light field being oppositely arranged and magnetic field, as shown in embodiment one, light field is by controllable
Smooth roll and occulter are constituted, and magnetic field can be permanent magnetic field, electromagnetic field, are also possible to crawler type magnetic field.Second optomagnetic double fields are by opposite
The UV curing light source of setting and the second magnetic field are constituted.
The pattern that the light source unit that controllable smooth roll is lit is formed is the lattice for being in two dimensional code, and surface printing has can
When the printing element of the ink coating of induction passes through, part corresponding with the lattice of the two dimensional code is controllable on ink coating
Smooth roll solidification, in the process, the inducible material in the ink coating on printing element surface occurs under the influence of a magnetic field
Arrangement variation is cured after the variation of two dimensional code meshing, and the part except two dimensional code grid is not cured then.Print base
Material then passes through second optomagnetic double fields, and the ink coating part except two dimensional code meshing is influenced by the second magnetic field, and ink applies
The arrangement angle of inducible material in layer changes again, while being solidified by UV curing light source so that two dimensional code grid it
Outer part also achieves solidification while variation.
The magnetic field that the present embodiment uses is different, and the micro- details of the two dimensional code eventually formed is different: different magnetic fields are to two
The inducible material of dimension code meshing can carry out different inductions, so that the quilt of the part except two dimensional code part and two dimensional code
Arrangement of arrangement angle, arrangement angle of cured inducible material etc. is different.
In practical applications, two sets or more of optomagnetic double fields can be set, so that printing element sequence passes through more set systems
System, to form the higher variable security pattern of complexity on printing element surface.Moreover, can also be used in each system
Different light sources and magnetic field, to form desired pattern effect.
Claims (10)
1. a kind of system that optomagnetic double fields form variable security patterns, it is characterised in that: comprising: surface printing or be coated with can
The printing element of the ink coating of induction and for the printing element surface formed variable security pattern at least a set of light
The double field units of magnetic, the printing element sequence is by least a set of optomagnetic double field units；Each optomagnetic double field units wrap
It includes the magnetic field being oppositely arranged and has the light field of solidification function to the ink coating being printed on substrate, the printing element is from light
Pass through between field and magnetic field, in the process, the magnetic field is in the area corresponding with magnetic field on the printing element surface
Pigment flakes in ink coating are induced, and change its orientation, while the ink coating is corresponding with the light field
Part is solidified by the light field again；Light field in optomagnetic double field units a set of at least within is write by variable controllable smooth roll, linearly
Enter light source or laser is formed, different time points, the controllable smooth roll is linearly writing the luminous point of light source or laser by control formation
Unique light field pattern, so that the ink coating on printing element surface to be formed with corresponding be partially cured of light field pattern
Unique safety design.
2. system according to claim 1, it is characterised in that: the magnetic field is permanent magnetic field, electromagnetic field or crawler type magnetic field；
The permanent magnetic field or the shape of electromagnetic field are cylindricality, the shape of a hoof, uniform magnetic field or ball crown type magnetic field, and the crawler type magnetic field is rubber
The crawler belt of glue magnetic-type or the crawler belt of clamping magnetic version.
3. the system that optomagnetic double fields according to claim 1 or 2 form variable security patterns, it is characterised in that: it is described can
Control smooth roll is the roller surface in certain size, and array installs several individually controllable light source units, and the light source unit is to print
It brushes and has solidification function in the ink coating on substrate；By controlling the switch of the light source unit of calender roll surface, in different time
Point forms different optical designs.
4. system according to claim 3, it is characterised in that: optomagnetic double fields further include: be set to the magnetic field
Transmission device and occulter between two magnetic poles or at the monopole of magnetic field；The controllable smooth roll is set on the printing element
Side, the occulter is set between the controllable smooth roll and the printing element, for blocking the controllable smooth roll for only
To the exposed outgoing-line type gap of the printing element, the transmission device is for driving the printing element relative to the occulter
It is mobile；By the rolling of the controllable smooth roll, under the action of the magnetic field, the pattern of controllable calender roll surface is passed through into the line
Type gap is transferred to the printing element surface, meanwhile, the magnetic field of the pattern formation of the shape or magnetic pole surfaces in the magnetic field exists
The printing element surface forms magnetic version pattern.
5. system according to claim 4, it is characterised in that: the line width in the line style gap be 0.1-3 millimeters, it is described can
Controlling the luminescence unit on smooth roll is the rectangle that physical size is not more than 0.1-3 square millimeters.
6. system according to claim 4, it is characterised in that: the transmission device and print below the controllable smooth roll
Brush substrate is plane, realizes that the pattern on controllable smooth roll is transferred to the printing base by the unidirectional translation of the transmission device
The surface of material；Alternatively, the transmission device is cylindric transfer roller, the occulter is matched with the shape of the transfer roller.
7. system according to claim 1, it is characterised in that: the light field is constituted by being linearly writing light source, the magnetic field
For crawler type magnetic field or fixed magnetic field；Optomagnetic double fields further include the transmission device for transmitting the printing element, institute
State printing element be set to it is described be linearly writing between light source and the magnetic field, it is described when the magnetic field is crawler type magnetic field
Crawler type magnetic field is synchronous with the transmission device, by the control for being linearly writing light source and the movement in crawler type magnetic field by institute
State and be linearly writing the pattern of light source pre-write and be transferred to the printing element surface, meanwhile, the crawler type magnetic field described
Printing element surface forms magnetic version pattern；When the magnetic field is fixed magnetic field, pass through the control for being linearly writing light source
The pattern for being linearly writing light source pre-write is transferred to the printing element surface, meanwhile, the shape or magnetic in the magnetic field
The magnetic field that the pattern of pole surface is formed forms magnetic version pattern on the printing element surface.
8. system according to claim 6, it is characterised in that: the light source that is linearly writing is that light source is written by several single-points
The single light source of composition realizes that the light letter of light source is written in overall linear by controlling the open and close of the single-point write-in light source
Number variation, have a solidification function to the ink coating being printed on substrate, the line width of every row's light source is 0.1-3 millimeters,
Luminescent system is formed by combining by applied optics system, fibre system and baffle plate.
9. system according to claim 8, it is characterised in that: the luminous component for being linearly writing light source be no more than
0.1-1 square millimeters of rectangle.
10. system according to claim 1 or 2, it is characterised in that: it includes two sets of optomagnetic double field units, and first is optomagnetic
Double units include the light field being oppositely arranged and magnetic field, and light field is made of controllable smooth roll and occulter, and second optomagnetic double fields are by phase
UV curing light source and the second magnetic field to setting are constituted；The light source unit that controllable smooth roll is lit forms the grid chart in two dimensional code
Case, when surface printing has the printing element of derivable ink coating to pass through, on ink coating with the lattice of the two dimensional code
Corresponding part is solidified by controllable smooth roll, and in the process, the inducible material in the ink coating on printing element surface exists
Arrangement variation occurs under the action of magnetic field, is cured after the variation of two dimensional code meshing, it is optomagnetic that printing element then passes through second
Double fields, the ink coating except two dimensional code meshing are influenced by the second magnetic field, the arrangement of the inducible material in ink coating
Angle changes again, while being solidified by UV curing light source, so that also real while the part except two dimensional code grid changes
Solidification is showed.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720982564 | 2017-08-07 | ||
| CN2017209825649 | 2017-08-07 |
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| CN208180497U true CN208180497U (en) | 2018-12-04 |
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| CN201721095861.8U Withdrawn - After Issue CN208180497U (en) | 2017-08-07 | 2017-08-29 | A kind of system that optomagnetic double fields form variable security pattern |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107471818A (en) * | 2017-08-07 | 2017-12-15 | 甄欣 | The system that a kind of optomagnetic double fields form variable security pattern |
| CN114701250A (en) * | 2022-03-18 | 2022-07-05 | 山东泰宝信息科技集团有限公司 | Magnetic 3D optical variable fixed magnetic equipment |
| CN114771090A (en) * | 2022-03-18 | 2022-07-22 | 山东泰宝信息科技集团有限公司 | Magnetic light-variable anti-counterfeiting mark printing device |
| WO2023202708A1 (en) * | 2022-04-22 | 2023-10-26 | 中国印钞造币集团有限公司 | Multi-optical-color optically-variable printing device and printing method thereof, and readable storage medium |
-
2017
- 2017-08-29 CN CN201721095861.8U patent/CN208180497U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107471818A (en) * | 2017-08-07 | 2017-12-15 | 甄欣 | The system that a kind of optomagnetic double fields form variable security pattern |
| CN107471818B (en) * | 2017-08-07 | 2023-06-13 | 甄欣 | System for forming variable safety pattern by using magneto-optical double fields |
| CN114701250A (en) * | 2022-03-18 | 2022-07-05 | 山东泰宝信息科技集团有限公司 | Magnetic 3D optical variable fixed magnetic equipment |
| CN114771090A (en) * | 2022-03-18 | 2022-07-22 | 山东泰宝信息科技集团有限公司 | Magnetic light-variable anti-counterfeiting mark printing device |
| CN114771090B (en) * | 2022-03-18 | 2023-09-01 | 山东泰宝信息科技集团有限公司 | Magnetic optically variable anti-counterfeiting mark printing device |
| WO2023202708A1 (en) * | 2022-04-22 | 2023-10-26 | 中国印钞造币集团有限公司 | Multi-optical-color optically-variable printing device and printing method thereof, and readable storage medium |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20181204 Effective date of abandoning: 20230613 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20181204 Effective date of abandoning: 20230613 |