CN102339612A - Magneto-optical picture and text recording magnetic plate and preparation method thereof - Google Patents
Magneto-optical picture and text recording magnetic plate and preparation method thereof Download PDFInfo
- Publication number
- CN102339612A CN102339612A CN2011102699074A CN201110269907A CN102339612A CN 102339612 A CN102339612 A CN 102339612A CN 2011102699074 A CN2011102699074 A CN 2011102699074A CN 201110269907 A CN201110269907 A CN 201110269907A CN 102339612 A CN102339612 A CN 102339612A
- Authority
- CN
- China
- Prior art keywords
- magneto
- optic
- thin film
- magnetic
- optic thin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Recording Or Reproducing By Magnetic Means (AREA)
Abstract
The invention provides a magneto-optical picture and text recording magnetic plate which comprises at least one substrate, at least one layer of magneto-optical film and at least one protective layer; the substrate is provided with two main surfaces which are over against each other; the magneto-optical film is arranged on one main surface of the substrate; the protective layer is arranged on the outer surface of the magneto-optical film; and wherein, areas which contain the magneto-optical film comprise an initial magnetic area and a picture and text recording area which receives magneto-optical action. The invention also provides a preparation method and a preparation unit of the magneto-optical picture and text recording magnetic plat. The magneto-optical picture and text recording magnetic plate records pictures and texts in the form of magnetic fields through a magneto-optical technology; when a base material on which a magnetic ink wet coating is printed passes by or is close to the picture and text recording area of the magneto-optical picture and text recording magnetic plate, the pictures and texts are transferred to the magnetic ink coating under the action of the magnetic fields, so that dynamic and uniform three-dimensional optical appearance patterns are formed.
Description
Technical field
The present invention relates to relate to the application that the magnetic behavior of magnetic ink or pigment (particularly magnetic photochromatic printing ink or pigment) is showed; Particularly; The present invention relates to a kind of magnetic graphic record magnetic sheet that utilizes the preparation of magneto-optic technology, and the preparation method of this graphic record magnetic sheet and device.
Background technology
Optical disclour printing ink or pigment are called for short photochromatic printing ink or pigment (OVI or OVP); Has down flop property; Promptly when two these products of different viewed, can present two kinds of various colors, like the green look that reddens; Be an a kind of good line anti-counterfeiting technology product, it is false proof to be widely used in banknote, securities, tobacco bale, wine target.Go through nearly 30 years development; Market proposes higher technical need to the performance of this technical products, and under this background, the technician in this field is under the condition of the down flop property that keeps optically variable pigments or printing ink; Introduce magnetic; Magnetic and down flop property are organically combined, prepare magnetic optically variable pigments or printing ink (MOVP or MOVI), like US4838648, Chinese patent 02800567.8 described magnetic optically variable pigments.
Though magnetic optically variable pigments or printing ink combine magnetic and down flop property; Is but thing followed problem the magnetic properties of how to show the magnetic optically variable pigments? In brief; How to use? Around this problem; The magnetic optically variable pigments use to divide a both direction: the one, directly duplicate the technique for applying of optically variable pigments or printing ink; The product of preparation is except that a line anti-counterfeiting performance that keeps changeable colors along with angle like this, also can detect magnetic number with the magnetic detecting instrument, makes product have the two wires security feature simultaneously; The another one application direction is a characteristic of utilizing magnetic particle under the action of a magnetic field, can align; Before magnetic photochromatic printing ink print product solidifies; Apply a specific external magnetic field; The magnetic optically variable pigments is aligned, and the product that obtains like this is except that two kinds of performances with first application direction, and can also obtain can be dynamically, the 3 D stereo pattern.
Consider that from the market demand and using value second application direction of above-mentioned magnetic optically variable pigments or printing ink becomes main developing direction undoubtedly.Wanting has outstanding achievement in this direction, crucial before magnetic photochromatic printing ink printed matter solidifies control through the homogeneity of direction, size and the field intensity in magnetic field.The researchist in this field is very clear, and this several aspects control is bad, and the pattern that obtains is easy to variety of issues such as appearance is turned black, pattern color is inconsistent; This mainly is that magnetic field control is bad, causes some places magnetic field intensity intensity excessive, and magnetic optically variable pigments sheet " erects " under the action of a magnetic field and ink adhesive acting in conjunction; The lateral plate of pigment flakes is presented on the observer at the moment, or local magnetic field strength is excessive, magnetic optically variable pigments sheet is under the effect of magnetic force; Local gather density is big, and only there is considerably less pigment flakes in some place in addition, causes irregular colour even; Here dark, where bright.Therefore, expect satisfied can be dynamically, the 3 D stereo pattern, the magnetic field control of pattern is extremely important.
Summary of the invention
The objective of the invention is to; A kind of magneto-optic graphic record magnetic sheet is provided; The base material that is printed with the wet coating of magnetic ink through or during near the graphic record zone of this magneto-optic graphic record magnetic sheet; The magnetooptic recording picture and text will be transferred in the magnetic ink coating, and formation can be dynamically, 3 D stereo optical appearance pattern.
The present invention also aims to, a kind of preparation method of magneto-optic graphic record magnetic sheet is provided.
The present invention also aims to, a kind of preparation facilities of magneto-optic graphic record magnetic sheet is provided.
The object of the invention and to solve its technical matters be that technical scheme below adopting realizes.
A kind of magneto-optic graphic record magnetic sheet, it comprises:
At least one substrate, this substrate have two first type surfaces that are oppositely arranged;
At least one deck magneto-optic thin film is positioned on the first type surface of substrate;
At least layer protective layer is arranged on the outside surface of magneto-optic thin film;
Wherein, the zone that is provided with magneto-optic thin film comprises initial magnetization zone and regional through the graphic record of laser and the action of a magnetic field.
Said magneto-optic thin film thickness is between 0.01 micron to 1000 microns.
The thickness of said magneto-optic thin film is between 0.1 micron to 10 microns.
Said substrate is a rigidity or flexible.
A kind of preparation method of magneto-optic graphic record magnetic sheet, it may further comprise the steps:
Substrate is provided;
Deposition one deck magneto-optic thin film on a first type surface of substrate;
Magneto-optic thin film is carried out initial magnetization;
Through on the magneto-optic thin film of initial magnetization with the laser erosion picture and text of design in advance that burn, and apply a magnetic deflection field along the laser corrosion line road of burning, form the magneto-optic graphic record.
The method of described deposition magneto-optic thin film is vacuum evaporation, sputter, plating, chemical vapor deposition or coating.
Described at picture and text through designing in advance with the bright erosion of laser on the magneto-optic thin film of initial magnetization; And apply a magnetic deflection field along the laser corrosion line road of burning; Form in the step of magneto-optic graphic record, this magnetic deflection field is that 0 degree is to 90 degree with respect to the angle of the outside surface of magneto-optic thin film.
Said magnetic deflection field is that 30 degree are to 60 degree with respect to the angle of the outside surface of magneto-optic thin film.
The described image-text area of design in advance is made up of a plurality of film micro areas, the magnetic deflection field that puts on these a plurality of film micro areas is identical with respect to the angle of the outside surface of magneto-optic thin film, have nothing in common with each other or the part same section inequality.
Described at picture and text through designing in advance with the bright erosion of laser on the magneto-optic thin film of initial magnetization; And apply a magnetic deflection field along the laser corrosion line road of burning; Form after the step of magneto-optic graphic record, also comprise step: the magneto-optic thin film outside surface forming the magneto-optic graphic record is armor coated.
Described on a first type surface of substrate deposition one deck magneto-optic thin film step and magneto-optic thin film carried out also comprising step between the step of initial magnetization: the outside surface at said magneto-optic thin film is armor coated.
Said magneto-optic thin film thickness is between 0.01 micron to 1000 microns.
The thickness of said magneto-optic thin film is between 0.1 micron to 10 microns.
In the said method, said substrate is a rigidity or flexible.
A kind of the present invention also provides a kind of device for preparing magneto-optic graphic record magnetic sheet, it comprise one put on the mechanism of magnetizing that is used for initial magnetization on the magneto-optic thin film, the erosion magneto-optic thin film laser system that is used for burning, the workbench that can change magnetic deflection field at any angle in the space and be used to place magneto-optic graphic record magnetic sheet.
Compared with prior art, the present invention possesses following advantage:
Disclosed magneto-optic graphic record magnetic sheet is to utilize the magneto-optic technology that picture and text are noted with the form in magnetic field; When the base material that is printed with the wet coating of magnetic ink through or during near the graphic record zone of this magneto-optic graphic record magnetic sheet; Picture and text transfer under the effect in magnetic field in the magnetic ink coating, and formation can be dynamically, the 3 D stereo optical appearance pattern of uniformity.Because the present invention utilizes magneto-optic technology preparation graphic record magnetic sheet, in whole graphic record process, graphic record is to come record by magnetic deflection field; Promptly control by magnetic deflection field; And the magnetic deflection field direction can be regulated arbitrarily, even the record picture and text of preparation are the same apparent like this, but because magnetic direction, size in each tiny area of record picture and text can be different; The pattern that is transferred in the magnetic ink printing article is also different, has improved the technical difficulty of preparation counterfeit product greatly.Simultaneously; In the whole recording process of magnetic deflection field; Because the magnetic deflection field direction can be regulated arbitrarily; Can be through the suitable deflection angle of control, make in the magnetic photochromatic printing ink the magnetic optically variable pigments with have rule, directed more uniformly, thoroughly solve the magnetic photochromatic printing ink and occur in application process that blackout, pattern color are inhomogeneous, fuzzy to reach prior art defectives such as stereoscopic sensation is not strong.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention one;
Fig. 2 is the preparation facilities synoptic diagram of the preparation embodiment one described magneto-optic graphic record magnetic sheet of the embodiment of the invention two and embodiment three;
Fig. 3 is the magneto-optic graphic record magnetic sheet picture and text microcell magnetooptic recording synoptic diagram of the embodiment of the invention two and embodiment three;
Fig. 4 is the process flow diagram of the embodiment of the invention two;
Fig. 5 is the process flow diagram of the embodiment of the invention three.
Embodiment
Embodiment one:
As shown in Figure 1, a kind of magneto-optic graphic record magnetic sheet comprises: a rigidity or flexible substrate 10, and this substrate 10 has two first type surfaces that are oppositely arranged; At least one deck magneto-optic thin film 20, and it is positioned on the first type surface of substrate 10; At least layer protective layer 30, are arranged on the outside surface of magneto-optic thin film 20; Wherein, magneto-optic thin film 20 comprises initial magnetization zone 21 and through the graphic record regional 22 of magnetic field and laser action.The DOM that said initial magnetization zone 21 also is shown among Fig. 1 is the direction perpendicular to the first type surface of substrate 10; The DOM 40 in graphic record zone 22 is what change; Graphic record zone 22 is made up of a plurality of film micro areas, and the DOM 40 of these film micro areas is different.
The thickness of said magneto-optic thin film 20 between 0.01 micron to 1000 microns, preferred 0.1 micron to 10 microns.
Embodiment two:
As 2 and shown in Figure 4, prepare the method for embodiment one described magneto-optic graphic record magnetic sheet, may further comprise the steps:
One substrate 10 is provided;
Deposition one deck magneto-optic thin film 20 on a first type surface of substrate 10;
Said magneto-optic thin film 20 is carried out initial magnetization;
Through on the magneto-optic thin film 20 of initial magnetization with the laser erosion picture and text of design in advance that burn, and apply a magnetic deflection field along the laser corrosion line road of burning, form magneto-optic graphic record 22;
At magneto-optic thin film 20 outside surfaces armor coated 30 that form magneto-optic graphic record 22.
Described on a first type surface of substrate 10, the deposition in one deck magneto-optic thin film 20 steps, the method for deposition magneto-optic thin film is the method for vacuum evaporation, sputter, plating, chemical vapor deposition or coating.
Described at picture and text through designing in advance with the bright erosion of laser on the magneto-optic thin film 20 of initial magnetization; And apply a magnetic deflection field along the laser corrosion line road of burning; Form in magneto-optic graphic record 22 steps; Described in step formation laser graphic record zone through burning and lose the picture and text that design in advance with laser on the magneto-optic thin film of initial magnetization; When applying magnetic deflection field to this laser graphic record zone, this magnetic deflection field with respect to the angle of the outside surface of magneto-optic thin film be 0 degree to 90 degree, preferred 30 degree are to 60 degree.Described graphic record zone 22 is made up of a plurality of film micro areas, and the magnetic deflection field direction 40 that puts on said a plurality of film micro areas is different.
The device of preparation magneto-optic graphic record magnetic sheet comprises that one puts on the mechanism 1 of magnetizing that is used for initial magnetization on the magneto-optic thin film 20, the laser system 2 that is used for bright erosion magneto-optic thin film 20, the workbench (not shown) that can change the magnetic deflection field 3 of angle in the space arbitrarily and be used to place magneto-optic graphic record magnetic sheet.
Embodiment three:
Present embodiment is the another kind of method of preparation embodiment one described magneto-optic graphic record magnetic sheet; It is close with embodiment two principles; Its preparation facilities is identical; Difference is: as shown in Figure 5, armor coated 30 the step of embodiment three in embodiment one to said magneto-optic thin film 20 carry out the initial magnetization step and through on the magneto-optic thin film 20 of initial magnetization with the laser erosion picture and text of design in advance that burn, and apply a magnetic deflection field along the laser corrosion line road of burning; Form between the step in graphic record zone 22; Promptly on a first type surface of substrate 10 after the step of deposition one deck magneto-optic thin film 20,, and then the magneto-optic thin film 20 that has applied protective seam 30 carried out initial magnetization at the surface-coated protective seam 30 of this magneto-optic thin film 20.
Among the embodiment one, in described magneto-optic graphic record magnetic sheet, said graphic record zone 22 is made up of a plurality of film micro areas, and the DOM of the magneto-optic thin film of these a plurality of film micro areas also can be identical, and also can part identical, part be inequality; Accordingly, in preparation method's embodiment two and embodiment three, the magnetic deflection field 3 that puts on these a plurality of film micro areas can be different with respect to the angle of the outside surface of magneto-optic thin film 20, also can be identical, or part is identical, and part is inequality.But the DOM of the magneto-optic thin film of a plurality of film micro areas in said graphic record zone 22 is 0 degree to 90 degree with respect to the angle of the outside surface of magneto-optic thin film, and preferred 30 degree are to 60 degree; In preparation method's embodiment two and embodiment three, the magnetic deflection field 3 that puts on these a plurality of film micro areas all satisfies scope with respect to the angle of the outside surface of magneto-optic thin film 20: 0 degree is to 90 degree, and preferred 30 degree are to 60 degree.
Principle of the present invention is: magneto-optic thin film 20 is through behind the initial magnetization; With the bright erosion of the laser of certain intensity; The tiny area of the magneto-optic thin film 20 of the bright erosion of process laser is under the effect of laser high-energy, and temperature raises, according to the character of magneto-optic thin film--and near the magneto-optic thin film tiny area magnetic disappearance Curie point; At this moment apply magnetic deflection field 3; Make this tiny area regain the magnetic field of design direction, new magnetic field image-text area of the final formation of this each tiny area is realized Curie point recording mode record picture and text; Near some magneto-optic thin films 20 coercive force compensation temperature is bigger, if temperature departure ± 10 ℃, the coercive force of magneto-optic thin film 20 can sharply descend so; Be easy to be magnetized this moment; Utilize this character, the tiny area of the magneto-optic thin film 20 of the bright erosion of process laser applies magnetic deflection field 3 along the bright route that loses of laser behind process laser high-energy; Tiny area through the bright erosion of laser can obtain new magnetic field image-text area equally, realizes compensation point recording mode record picture and text; Can also can reduce to realize pyromagnetic coercive force recording mode record picture and text equally according to the coercive force of some magneto-optic thin films with the rising of temperature.
Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the present invention's design, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with accompanying claims.
Claims (14)
1. magneto-optic graphic record magnetic sheet, it is characterized in that: it comprises:
At least one substrate, this substrate have two first type surfaces that are oppositely arranged;
At least one deck magneto-optic thin film is positioned on the first type surface of substrate;
At least layer protective layer is arranged on the outside surface of magneto-optic thin film;
Wherein, the zone that is provided with magneto-optic thin film comprises initial magnetization zone and regional through the graphic record of laser and the action of a magnetic field.
2. magneto-optic graphic record magnetic sheet according to claim 1 is characterized in that: said magneto-optic thin film thickness is between 0.01 micron to 1000 microns.
3. magneto-optic graphic record magnetic sheet according to claim 2 is characterized in that: the thickness of said magneto-optic thin film is between 0.1 micron to 10 microns.
4. magneto-optic graphic record magnetic sheet according to claim 1 is characterized in that: said substrate is a rigidity or flexible.
5. the preparation method of a magneto-optic graphic record magnetic sheet, it is characterized in that: it may further comprise the steps:
Substrate is provided;
Deposition one deck magneto-optic thin film on a first type surface of substrate;
Magneto-optic thin film is carried out initial magnetization;
Through on the magneto-optic thin film of initial magnetization with the laser erosion picture and text of design in advance that burn, and apply a magnetic deflection field along the laser corrosion line road of burning, form the magneto-optic graphic record.
6. method according to claim 5 is characterized in that: the method for described deposition magneto-optic thin film is vacuum evaporation, sputter, plating, chemical vapor deposition or coating.
7. method according to claim 5; It is characterized in that: described at picture and text through designing in advance with the bright erosion of laser on the magneto-optic thin film of initial magnetization; And apply a magnetic deflection field along the laser corrosion line road of burning; Form in the step of magneto-optic graphic record, this magnetic deflection field is that 0 degree is to 90 degree with respect to the angle of the outside surface of magneto-optic thin film.
8. method according to claim 7 is characterized in that: said magnetic deflection field is that 30 degree are to 60 degree with respect to the angle of the outside surface of magneto-optic thin film.
9. according to claim 7 or 8 described methods; It is characterized in that: the described image-text area of design in advance is made up of a plurality of film micro areas, the magnetic deflection field that puts on these a plurality of film micro areas is identical with respect to the angle of the outside surface of magneto-optic thin film, have nothing in common with each other or the part same section inequality.
10. method according to claim 5; It is characterized in that: described at picture and text through designing in advance with the bright erosion of laser on the magneto-optic thin film of initial magnetization; And apply a magnetic deflection field along the laser corrosion line road of burning; Form after the step of magneto-optic graphic record, also comprise step: the magneto-optic thin film outside surface forming the magneto-optic graphic record is armor coated.
11. method according to claim 5; It is characterized in that: described on a first type surface of substrate deposition one deck magneto-optic thin film step and magneto-optic thin film carried out also comprising step between the step of initial magnetization: the outside surface at said magneto-optic thin film is armor coated.
12. method according to claim 5 is characterized in that: said magneto-optic thin film thickness is between 0.01 micron to 1000 microns.
13. method according to claim 12 is characterized in that: the thickness of said magneto-optic thin film is between 0.1 micron to 10 microns.
14. method according to claim 5 is characterized in that: said substrate is a rigidity or flexible.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102699074A CN102339612A (en) | 2011-09-13 | 2011-09-13 | Magneto-optical picture and text recording magnetic plate and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102699074A CN102339612A (en) | 2011-09-13 | 2011-09-13 | Magneto-optical picture and text recording magnetic plate and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102339612A true CN102339612A (en) | 2012-02-01 |
Family
ID=45515300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102699074A Pending CN102339612A (en) | 2011-09-13 | 2011-09-13 | Magneto-optical picture and text recording magnetic plate and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102339612A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114141470A (en) * | 2021-11-29 | 2022-03-04 | 中国工程物理研究院电子工程研究所 | Micro-area magnetizing device and method based on MEMS (micro-electromechanical systems) micro-coil |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1390350A (en) * | 1999-11-12 | 2003-01-08 | 西加特技术有限责任公司 | Magnetic media patterning utilizing heat-induced phase transition |
-
2011
- 2011-09-13 CN CN2011102699074A patent/CN102339612A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1390350A (en) * | 1999-11-12 | 2003-01-08 | 西加特技术有限责任公司 | Magnetic media patterning utilizing heat-induced phase transition |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114141470A (en) * | 2021-11-29 | 2022-03-04 | 中国工程物理研究院电子工程研究所 | Micro-area magnetizing device and method based on MEMS (micro-electromechanical systems) micro-coil |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9649871B2 (en) | Security elements, and methods and apparatus for their manufacture | |
| US7517578B2 (en) | Method and apparatus for orienting magnetic flakes | |
| KR101029857B1 (en) | Alignable diffractive pigment flakes | |
| RU2649547C2 (en) | Methods of producing security threads or stripes | |
| KR102670356B1 (en) | Assembly and process for producing an optical effect layer comprising oriented non-spherical oblate magnetic or magnetisable pigment particles | |
| US9659696B2 (en) | Permanent magnet assemblies for generating concave field lines and process for creating optical effect coating therewith (inverse rolling bar) | |
| EP3059019A1 (en) | Method and apparatus for orienting magnetic flakes | |
| US20040051297A1 (en) | Method and apparatus for orienting magnetic flakes | |
| KR102684642B1 (en) | Magnetic assemblies, devices and methods for producing optical effect layers comprising oriented non-spherical magnetic or magnetisable pigment particles | |
| AU2016256755A1 (en) | Article with a dynamic frame formed with aligned pigment flakes | |
| AU2014204887A1 (en) | Optical effect layers showing a viewing angle dependent optical effect; processes and devices for their production; items carrying an optical effect layer; and uses thereof | |
| KR20150013529A (en) | Optical effect layer | |
| KR102670760B1 (en) | Assembly and process for producing an optical effect layer comprising oriented non-spherical oblate magnetic or magnetisable pigment particles | |
| TWI780201B (en) | Optical effect layer and its use, security document or decorative element comprising such optical effect layer, and apparatus and process for producing such optical effect layer | |
| AU2016100918A4 (en) | Gravure-Printed Devices and Method of Producing such Devices | |
| CN102339612A (en) | Magneto-optical picture and text recording magnetic plate and preparation method thereof | |
| CN202258324U (en) | Magneto-optic image and text recording magnetic plate | |
| AU2015200595B2 (en) | Security elements and methods and apparatus for their manufacture |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120201 |