CN101706595B - Magnetic light-variation film and film fragments - Google Patents
Magnetic light-variation film and film fragments Download PDFInfo
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- CN101706595B CN101706595B CN200910104837XA CN200910104837A CN101706595B CN 101706595 B CN101706595 B CN 101706595B CN 200910104837X A CN200910104837X A CN 200910104837XA CN 200910104837 A CN200910104837 A CN 200910104837A CN 101706595 B CN101706595 B CN 101706595B
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- 239000012634 fragment Substances 0.000 title claims abstract description 21
- 238000010521 absorption reaction Methods 0.000 claims abstract description 47
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 13
- 239000011651 chromium Substances 0.000 claims abstract description 13
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 13
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 9
- 239000000956 alloy Substances 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims description 42
- 230000003287 optical effect Effects 0.000 claims description 18
- 230000000694 effects Effects 0.000 claims description 17
- 229910052751 metal Inorganic materials 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 13
- 238000000576 coating method Methods 0.000 claims description 7
- 238000007639 printing Methods 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- 229910017052 cobalt Inorganic materials 0.000 claims description 3
- 239000010941 cobalt Substances 0.000 claims description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000003989 dielectric material Substances 0.000 claims description 3
- 229910052732 germanium Inorganic materials 0.000 claims description 3
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 229910052718 tin Inorganic materials 0.000 claims description 3
- 239000011135 tin Substances 0.000 claims description 3
- 239000010936 titanium Substances 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 3
- 229910052721 tungsten Inorganic materials 0.000 claims description 3
- 239000010937 tungsten Substances 0.000 claims description 3
- 229910052720 vanadium Inorganic materials 0.000 claims description 3
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 19
- 239000010410 layer Substances 0.000 description 72
- 239000010408 film Substances 0.000 description 71
- 230000003458 metachromatic effect Effects 0.000 description 25
- 238000000034 method Methods 0.000 description 13
- 238000005516 engineering process Methods 0.000 description 7
- 229910000990 Ni alloy Inorganic materials 0.000 description 4
- ZGDWHDKHJKZZIQ-UHFFFAOYSA-N cobalt nickel Chemical compound [Co].[Ni].[Ni].[Ni] ZGDWHDKHJKZZIQ-UHFFFAOYSA-N 0.000 description 4
- 239000003086 colorant Substances 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 238000000151 deposition Methods 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 238000003475 lamination Methods 0.000 description 3
- 239000000696 magnetic material Substances 0.000 description 3
- 238000005240 physical vapour deposition Methods 0.000 description 3
- 238000002310 reflectometry Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 230000014509 gene expression Effects 0.000 description 2
- 239000002932 luster Substances 0.000 description 2
- 230000035800 maturation Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 241001062009 Indigofera Species 0.000 description 1
- 229910018487 Ni—Cr Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- ORUIBWPALBXDOA-UHFFFAOYSA-L magnesium fluoride Chemical compound [F-].[F-].[Mg+2] ORUIBWPALBXDOA-UHFFFAOYSA-L 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000012788 optical film Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000007704 wet chemistry method Methods 0.000 description 1
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Abstract
The invention provides a magnetic light-variation film, film fragments and a manufacturing method thereof. The magnetic light-variation film comprises a magnetic layer, a first dielectric layer, a second dielectric layer, a first half-absorption layer and a second half-absorption layer, wherein the magnetic layer contains at least one alloy containing nickel and chromium and comprises a first main surface and a second main surface opposite to the first main surface; the first dielectric layer is arranged on the first main surface of the magnetic layer; the second dielectric layer is arranged on the second main surface of the magnetic layer; the first half-absorption layer is arranged on the first dielectric layer; and the second half-absorption layer is arranged the second dielectric layer. The magnetic light-variation film not only presents magnetic characteristics, but also presents the heterochromia with angles so as to have a first color at a first incident angle or observation angle and a second color different from the first color at a second incident angle or observation angle.
Description
[technical field]
The present invention relates to optic metachromatic material field.Particularly, the present invention relates to a kind of magnetic light-variation film, film fragments with and manufacture method.
[background technology]
The optic metachromatic material has the change color phenomenon relevant with viewing angle, the observer can observe different colors in different angles, particularly when the normal direction with the optic metachromatic film surface is 0 degree angle or 60 degree and observes about angles, the optic metachromatic film will present visibly different color, and this phenomenon is known as color travel.For example according to specific optical design can obtain greenly reddening, change color phenomenons such as red stain is green, green change indigo plant.And this change color phenomenon can not adopt pseudo-making method commonly used such as color dub equipment, electronic scanning plate-making and inscription rubbing to reproduce.Therefore the optic metachromatic material can be used as the effective false proof means of currency, bank money, secret papers and antifalsification label.The currency of most of country printing has all used this optic metachromatic material to protect in the present world wide, to prevent forgery.
At present, industry has developed the optic metachromatic material that two types.
First kind of optic metachromatic material is based on the thin slice of some coatings, wherein adopt chemical vapor deposition (CVD) or adopt the wet chemistry deposition, coated media material layer, the metallizing layer or second layer of dielectric material subsequently on the alumina particles thin slice that uses mechanical means to flatten.Such optic metachromatic material color is not bright, and the color displacement relevant with angle is also smaller, and metachrosis is weak, poor, the attainable look kind of metal sense is few, the shape that is translucent, and expressive force is relatively poor, needs dark substrate could show color changeable effect.It is coarse and maldistribution that its particle diameter mostly is, and generally should not use in printing industry, is used for decoration industry (coating and the lacquers of automobile and toy etc.) more.
Second kind of optic metachromatic material mainly is the light-variation film material that adopts the method manufacturing of physical vapor deposition (PVD), its production technology is controlled stronger, good product consistency, have that strong changeable colors along with angle effect, color are beautiful, the metal sense is strong, the look kind is complete, has covered the whole chromatogram scope of visible light.This light-variation film material is that the Fabry-Perot resonator lamination by vapor deposition film is constituted.This light-variation film material exists the simple sandwich construction of metal-dielectric material-metal and the double sandwich structure of metal-dielectric material-metal-dielectric material-metal at present, wherein metal layer at top is half absorption metal level, make light can pass in and out Fabry-Perot resonator lamination, and then produce color travel by interference effect.
Second kind of light-variation film material taken the lead in beginning one's study by Canada in 1975, and the U.S. began to develop thin film interference filters in 1981, developed in 1984 light-variation film is transferred to other surperficial methods.To the nineties in 20th century, the numerous and confused research that launches this materials industrialization of domestic research institutions and enterprise, typical case's representative has Shanghai Institute of Technical Physics and Huizhou City Huayang Optics Technological Co.,Ltd.Yet finally realize industrialization and be widely used in the Huizhou City Huayang Optics Technological Co.,Ltd of having only in market.
In order further to improve the security feature of optic metachromatic material, make it both have the visual color changeable effect of distinguishing, just have other antiforge function that instrument can be distinguished again, new magneto-optical off-color material arises at the historic moment.The effective way of making this optic metachromatic material is the magnetic of mixing and hiding to aforementioned optics off-color material.This magneto-optical off-color material can be introduced different security level in the corresponding tab file: 1) simple " having/nonmagnetic " feature; 2) identification of feature magnetic; 3) has the printed patterns of magnetic or non magnetic feature; With 4) carrier of magnetic data, magnetic information is stored in the optic metachromatic material with magnetic characteristic of printing.
For example, US 4,838, proposed a kind of magneto-optical off-color material in No. 648 United States Patent (USP)s, wherein specific magnetic material added in the structure of optic metachromatic material, so that magnetic characteristic to be provided.At US 4,838, the preferred mass percent that adopts is that 80: 20 cobalt-nickel alloy is as magnetic material in 648, but this magnetic material has following shortcoming, 1) its optical property is lower, particularly because the reflectivity of cobalt-nickel alloy is lower, make the optic metachromatic material have lower gorgeous degree, 2) adhesion between cobalt-nickel alloy and the dielectric layer is very poor, thereby be easy to take place lamination in the demoulding, pulverizing, printing ink stirring technique stage, cause the optical interference structure of material destroyed, cause the optic metachromatic effect to disappear; 3) Coating Materials of cobalt-nickel alloy costs an arm and a leg, and is difficult to form the advantage on the cost.
Just because of above-mentioned all inevitable technological deficiency, make this patented technology not be able to commercial application in practice for a long time, up to the present, also do not see this technical products in the domestic and international market.Therefore, more researchist and slip-stick artist are also making great efforts to break through always, and expectation solves above-mentioned variety of problems.The people such as Shao Jianxin and the Switzerland SICPA company of China have obtained certain breakthrough, in the Chinese patent CN02800567.8 of its application, have proposed the magneto-optical off-color material of 7 layer film structures.But therefore the magneto-optical off-color material of this 7 layer film structures has strengthened production cost and has made difficulty of processing because coating layers is more.
[summary of the invention]
The technical matters that the present invention solves provides a kind of superior performance and lower-cost magnetic light-variation film and film fragments.
Another technical matters that the present invention solves provides a kind of low cost of manufacture, is easy to the magnetic light-variation film and the film fragments of volume production and good in optical property.
The technical scheme of technical solution problem of the present invention is: a kind of magnetic light-variation film is provided, comprises magnetosphere, first dielectric layer, second dielectric layer, first half-absorption layer and second half-absorption layer.Magnetosphere is a kind of nickel-chrome, has first first type surface and opposite second major surface.First dielectric layer is positioned on this magnetospheric this first first type surface, has first outside surface.Second dielectric layer is positioned on this magnetospheric this second first type surface, has second outside surface.First half-absorption layer is positioned on this first outside surface of this first dielectric layer.Second half-absorption layer is positioned on this second outside surface of this second dielectric layer.This magnetosphere has reflection characteristic, make incident ray between this magnetosphere and this first half-absorption layer or this second half-absorption layer, reflect, and then generation optical interference effects, make this magnetic light-variation film have first color at first incident angle of light or viewing angle, and having second color that is different from first color at second incident angle of light or viewing angle, two metal quality number percents are in this nickel-chrome: the nickel of 80%-96% and the chromium of 4%-20%.
Another technical scheme of technical solution problem of the present invention is: a kind of magnetic light-variation film is provided, and this magnetic light-variation film is made up of following material layer: magnetosphere have first first type surface and opposite second major surface, and this magnetosphere is a kind of nickel-chrome; First dielectric layer is positioned on this magnetospheric this first first type surface, has first outside surface; Second dielectric layer is positioned on this magnetospheric this second first type surface, has second outside surface; First half-absorption layer is positioned on this first outside surface of this first dielectric layer; And second half-absorption layer, be positioned on this second outside surface of this second dielectric layer.Wherein, this magnetosphere has reflection characteristic, make incident ray between this magnetosphere and this first half-absorption layer or this second half-absorption layer, reflect, and then generation optical interference effects, the alloy of this Ni and Cr contained is a nickel-chrome, and two metal quality number percents are in this nickel-chrome: the nickel of 80%-96% and the chromium of 4%-20%.
The another technical scheme that the present invention solves the problems of the technologies described above is: a kind of magnetic light-variation film fragment is provided, this magnetic light-variation film fragment is suitable for adding in printing ink or the coating, so that magnetic and color travel to be provided, this magnetic light-variation film fragment is made by above-mentioned magnetic light-variation film, the physical size of this magnetic light-variation film fragment is in the scope of 2 μ m to 100 μ m, and its radius-thickness ratio is not less than 2: 1.
Magnetic light-variation film provided by the invention and film fragments optical property are stable, can under the situation of the metallic luster that does not change uniform granular sense that nonmagnetic layer optic metachromatic material presented, particular color, changeable colors along with angle effect, increase the magnetic recognition feature of optic metachromatic material by simple change magnetic layer material.Both had the popular antiforge function of a line that human eye such as optic metachromatic is directly distinguished, possessed the two wires expert anti-fake function that instrument is distinguished again, greatly strengthened the multifunctional antiforge ability of product.And overcome existing optical material structural flow and can not actually implement, or made complicated, with high costs double-barreled question in theory.This magnetic light-variation film and film fragments can adopt and produce identical device and the production technology manufacturing that traditional non magnetic optic metachromatic material uses, the working condition maturation, and cost is low, is easy to volume production, and properties of product are stable.
[description of drawings]
Fig. 1 is the section of structure of magnetic light-variation film of the present invention.
Fig. 2 is the theoretical reflectivity correlation curve figure of the light-variation film of magnetic light-variation film of the present invention and the nonmagnetic layer of tradition.
Fig. 3 is the process chart of the manufacture method of magnetic light-variation film of the present invention.
[embodiment]
To the specific embodiment of the present invention be described hereinafter in more detail referring to accompanying drawing.Yet the present invention can be presented as different forms and should not be regarded as being limited to embodiment as herein described.Make this disclosure comprehensive and complete and provide these embodiments, and pass on category of the present invention comprehensively to those who familiarize themselves with the technology.
Fig. 1 has illustrated the section of structure of magnetic light-variation film of the present invention.Magnetic light-variation film 10 of the present invention comprises magnetosphere 11, first dielectric layer 12, second dielectric layer 14, first half-absorption layer 13 and second half-absorption layer 15.Magnetosphere 11 has first first type surface 111 and opposite second major surface 112.First dielectric layer 12 is positioned on first first type surface 111 of magnetosphere 11, and it has first outside surface 121.Second dielectric layer 14 is positioned on second first type surface 112 of magnetosphere 11, and it has second outside surface 141.First half-absorption layer 13 is positioned on first outside surface 121 of first dielectric layer 12.Second half-absorption layer 15 is positioned on second outside surface 141 of second dielectric layer 14.
This first dielectric layer 12 has identical composition and has identical physical thickness with second dielectric layer 14, and its composition preferentially selects for use refractive index less than 1.65 dielectric material, as silicon dioxide (SiO
2) or magnesium fluoride (MgF
2).Between 9 times the quarter-wave when 2 times the quarter-wave of the optical thickness scope of this first dielectric layer 12 and second dielectric layer 14 when the 400nm design wavelength grows to the 700nm design wavelength.
This first half-absorption layer 13 has identical composition with second half-absorption layer 15, and composition is selected from nickel, chromium, copper, cobalt, titanium, vanadium, tungsten, tin, silicon, germanium and composition thereof or alloy; And its physical thickness range is between 3nm to 20nm.In preferred embodiment, the physical thickness range of first half-absorption layer 13 and second half-absorption layer 15 is between 5nm to 8nm.Another preferred embodiment in, first half-absorption layer 13 has identical physical thickness with second half-absorption layer 15.
The material of this magnetosphere 11 is the alloy of Ni and Cr contained.For example, adopt nickel-chrome in the present embodiment, and two metal quality number percents are in this nickel-chrome: the nickel of 80%-96% and the chromium of 4%-20%.The physical thickness range of magnetosphere 11 is between 20nm to 1000nm.In preferred embodiment, the physical thickness range of magnetosphere 11 is between 50nm to 100nm.This magnetosphere 11 has reflection characteristic, makes incident ray reflect between magnetosphere 11 and first half-absorption layer 13 or second half-absorption layer 15, and then produces optical interference effects.
Magnetosphere 11 can be magnetic light-variation film 10 magnetic characteristic is provided.In addition, magnetosphere 11 provides color travel further combined with first dielectric layer 12 and first half-absorption layer 13 or second dielectric layer 14 and second half-absorption layer 15, make magnetic light-variation film 10 have first color, and have second color that is different from first color in second incident angle of light/viewing angle 19 in first incident angle of light/viewing angle 18.For example, under first kind of optical thin film design, in that first incident angle of light/viewing angle 18 (for example, become 60 degree angles with magnetic light-variation film 10 normal to a surface directions), first color that magnetic light-variation film 10 presented is for green, second incident angle of light/viewing angle 19 (for example being to become 0 degree angle with magnetic light-variation film 10 normal to a surface directions), second color that magnetic light-variation film 10 presented is for red.Under second kind of optical thin film design, in first incident angle of light/viewing angle 18, first color that magnetic light-variation film 10 presented is for blue, and in second incident angle of light/viewing angle 19, second color that magnetic light-variation film 10 presented is for green.
As can be seen from Figure 1, this magnetic light-variation film 10 has structurally continued the symmetrical structure of traditional optical camouflage paint, looks from arbitrary surface of magnetic light-variation film 10 like this, all can present identical color effects, becomes effect thereby obtain same light.Certainly, those skilled in the art can expect designing according to actual needs unsymmetric structure fully.
The nickel-chrome material of this magnetosphere 11 has following technique effect: (1) has higher reflecting properties, has bright-coloured color changeable effect to guarantee magnetic light-variation film 10 of the present invention; (2) have magnetic behavior preferably, make that magnetic light-variation film 10 is easy to be discerned by the magnetic detecting instrument; (3) and the adhesion between first dielectric layer 12 and second dielectric layer 14 good, layering be difficult for to take place, guaranteed the optic metachromatic Stability Analysis of Structures performance of magnetic light-variation film 10; (4) have certain decay resistance, guaranteed the stability of magnetic light-variation film 10; (5) cheap, guarantee that magnetic light-variation film 10 has certain cost advantage.Though only be that example is illustrated with the nickel-chrome among the present invention, those skilled in the art can expect adopting other the alloy of Ni and Cr contained of nickel chromium triangle cobalt-base alloy etc. for example as magnetosphere 11 fully.
Fig. 2 is the theoretical reflectivity correlation curve figure of a kind of magnetic light-variation film of the present invention and traditional light-variation film.The theoretical reflectance curve of the traditional light-variation film of solid line 21 expressions, the reflectance curve of dotted line 22 expressions magnetic light-variation film 10 of the present invention.As seen from Figure 2, dotted line 22 and solid line 21 are identical substantially, illustrate that magnetic light-variation film 10 of the present invention kept the color changeable effect of traditional light-variation film substantially.
Fig. 3 is the process chart of the manufacture method of magnetic light-variation film of the present invention.In conjunction with shown in Figure 1, magnetic light-variation film 10 of the present invention is made by following steps: stiff base 17 (step 31) is provided, and under high vacuum condition, adopt physical vaporous deposition (PVD) on stiff base 17, to design layer deposited isolating 16 (step 32), first half-absorption layer 13 (step 33), first dielectric layer 12 (step 34), magnetosphere 11 (step 35), second dielectric layer 14 (step 36), second half-absorption layer 15 (step 37) successively by specific optical film.
As everyone knows, it is need expend for a long time that coating machine is taken out a high vacuum, the present invention can be the cycle with separation layer 16, the first metal layer 13, first dielectric layer 12, magnetosphere 11, second dielectric layer 14, second metal level 15 on stiff base 17 after once reaching high vacuum condition, repeat evaporation 20 to 30 times, even more, guaranteed effective production time thus to greatest extent, improved equipment capacity greatly, reduce production costs, improved production efficiency.
After according to said method repeating repeatedly, on stiff base 17, formed a plurality of separation layers 16 periodicity composite structure folded mutually with a plurality of magnetic light-variation films 10.Treat that deposition finishes, this stiff base 17 is taken out from vacuum chamber, place specific solvent to carry out organic stripping process.The periodicity composite structure that is deposited can strip down from stiff base 17 under the effect of specific solvent, and the magnetic light-variation film 10 in the periodicity composite structure is separated with separation layer 16, collects the magnetic light-variation film 10 that separates then.At last, will pulverize with this magnetic light-variation film of this substrate after separating is a plurality of magnetic light-variation film fragments.In a preferred embodiment, the physical size of magnetic light-variation film fragment is in the scope of 2 μ m to 100 μ m, and its radius-thickness ratio is not less than 2: 1, makes the magnetic light-variation film fragment be suitable for adding in printing ink or the coating, so that magnetic and color travel to be provided.
Magnetic light-variation film provided by the invention and film fragments optical property are stable, can under the situation of the metallic luster that does not change uniform granular sense that nonmagnetic layer optic metachromatic material presented, particular color, changeable colors along with angle effect, increase the magnetic recognition feature of optic metachromatic material by simple change magnetic layer material.Both had the popular antiforge function of a line that human eye such as optic metachromatic is directly distinguished, possessed the two wires expert anti-fake function that instrument is distinguished again, greatly strengthened the multifunctional antiforge ability of product.And overcome existing optical material structural flow and can not actually implement, or made complicated, with high costs double-barreled question in theory.This magnetic light-variation film, film fragments and manufacture method can adopt and produce identical device and the production technology manufacturing that traditional non magnetic optic metachromatic material uses, the working condition maturation, and cost is low, is easy to volume production, and properties of product are stable.
Embodiment described above should think schematically, and nonrestrictive, and the appending claims intention covers the institute that falls in technical conceive of the present invention and the scope and changes, strengthens and other embodiment.Therefore, in the maximum magnitude that law allowed, scope of the present invention is determined by the most tolerant the explanation perhaps of following claims and equivalent thereof, and should not be subjected to the constraint or the restriction of aforementioned detailed description.
Claims (11)
1. a magnetic light-variation film is characterized in that, described magnetic light-variation film is made up of following material layer:
Magnetosphere is a kind of nickel-chrome, has first first type surface and opposite second major surface;
First dielectric layer is positioned on this magnetospheric this first first type surface, has first outside surface;
Second dielectric layer is positioned on this magnetospheric this second first type surface, has second outside surface;
First half-absorption layer is positioned on this first outside surface of this first dielectric layer; And
Second half-absorption layer is positioned on this second outside surface of this second dielectric layer,
Wherein, this magnetosphere has reflection characteristic, make incident ray between this magnetosphere and this first half-absorption layer or this second half-absorption layer, reflect, and then generation optical interference effects, make this magnetic light-variation film have first color at first incident angle of light or viewing angle, and having second color that is different from first color at second incident angle of light or viewing angle, two metal quality number percents are in this nickel-chrome: the nickel of 80%-96% and the chromium of 4%-20%.
2. magnetic light-variation film according to claim 1 is characterized in that this magnetospheric physical thickness range is between 20nm to 1000nm.
3. magnetic light-variation film according to claim 1 is characterized in that this first half-absorption layer has identical composition with this second half-absorption layer, and this composition is selected from: nickel, chromium, copper, cobalt, titanium, vanadium, tungsten, tin, silicon, germanium and composition thereof or alloy.
4. magnetic light-variation film according to claim 1 it is characterized in that this first half-absorption layer has identical physical thickness with this second half-absorption layer, and this physical thickness range is between 3nm to 20nm.
5. magnetic light-variation film according to claim 1 is characterized in that this first dielectric layer has identical composition with this second dielectric layer, and this composition is selected from refractive index less than 1.65 dielectric material.
6. between 9 times the quarter-wave when magnetic light-variation film according to claim 1,2 times the quarter-wave of optical thickness scope when the design wavelength of 400nm that it is characterized in that this first dielectric layer and this second dielectric layer grow to the design wavelength of 700nm.
7. magnetic light-variation film is characterized in that being made up of following material layer:
Magnetosphere has first first type surface and opposite second major surface, and this magnetosphere is a kind of nickel-chrome;
First dielectric layer is positioned on this magnetospheric this first first type surface, has first outside surface;
Second dielectric layer is positioned on this magnetospheric this second first type surface, has second outside surface;
First half-absorption layer is positioned on this first outside surface of this first dielectric layer; And
Second half-absorption layer is positioned on this second outside surface of this second dielectric layer;
Wherein, this magnetosphere has reflection characteristic, make incident ray between this magnetosphere and this first half-absorption layer or this second half-absorption layer, reflect, and then generation optical interference effects, the alloy of this Ni and Cr contained is a nickel-chrome, and two metal quality number percents are in this nickel-chrome: the nickel of 80%-96% and the chromium of 4%-20%.
8. magnetic light-variation film according to claim 7 is characterized in that this magnetospheric physical thickness range is between 20nm to 1000nm.
9. magnetic light-variation film according to claim 7, this magnetospheric physical thickness range is between 20nm to 1000nm.
10. magnetic light-variation film according to claim 7, it is characterized in that this first half-absorption layer has identical composition with this second half-absorption layer, this composition is selected from: nickel, chromium, copper, cobalt, titanium, vanadium, tungsten, tin, silicon, germanium and composition thereof or alloy, and the physical thickness range of this first half-absorption layer and this second half-absorption layer is between 3nm to 20nm.
11. magnetic light-variation film fragment, this magnetic light-variation film fragment is suitable for adding in printing ink or the coating, so that magnetic and color travel to be provided, it is characterized in that: this magnetic light-variation film fragment is made by any described magnetic light-variation film among the aforesaid right requirement 7-10, the physical size of this magnetic light-variation film fragment is in the scope of 2 μ m to 100 μ m, and its radius-thickness ratio is not less than 2: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910104837XA CN101706595B (en) | 2009-01-05 | 2009-01-05 | Magnetic light-variation film and film fragments |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910104837XA CN101706595B (en) | 2009-01-05 | 2009-01-05 | Magnetic light-variation film and film fragments |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101706595A CN101706595A (en) | 2010-05-12 |
| CN101706595B true CN101706595B (en) | 2011-08-17 |
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| CN200910104837XA Active CN101706595B (en) | 2009-01-05 | 2009-01-05 | Magnetic light-variation film and film fragments |
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| CN102372944A (en) * | 2010-08-24 | 2012-03-14 | 惠州市华阳光学技术有限公司 | Pigment slice applied to tracing anti-counterfeit technology and manufacturing method thereof |
| CN103050055B (en) * | 2011-10-12 | 2015-02-18 | 中钞特种防伪科技有限公司 | Optical variability anti-counterfeiting element |
| CN102490448B (en) * | 2011-10-20 | 2014-01-15 | 惠州市华阳光学技术有限公司 | Magnetic printing mother set, preparation method thereof and preparation equipment |
| CN103018813B (en) * | 2012-12-20 | 2015-07-22 | 晋谱（福建）光电科技有限公司 | Metamerism effect based metal media optical variable anti-counterfeiting film |
| CN103178210A (en) * | 2013-03-04 | 2013-06-26 | 中国科学院长春光学精密机械与物理研究所 | Organic thin-film transistor based transparent color-variable multiple-anti-counterfeiting flash memory device and manufacturing method and application thereof |
| CN105158828B (en) * | 2015-09-02 | 2017-10-31 | 中国科学院长春光学精密机械与物理研究所 | The free profile-followed method of infrared band optical thin film |
| CN105182458A (en) * | 2015-09-29 | 2015-12-23 | 厦门汉盾光学科技有限公司 | Optical chromotropic anti-counterfeiting pigment |
| EP3672750A2 (en) * | 2017-09-29 | 2020-07-01 | NIKE Innovate C.V. | Structurally-colored articles and methods for making and using structurally-colored articles |
| CN108922776A (en) * | 2018-07-10 | 2018-11-30 | 广东晟铂纳新材料科技有限公司 | A kind of multi-layered magnetic thin film flakes and preparation method thereof |
| CN112708288A (en) * | 2020-05-21 | 2021-04-27 | 厦门大学 | Magnetic structure color film |
| CN112442287A (en) * | 2020-11-20 | 2021-03-05 | 惠州市华阳光学技术有限公司 | Pigment flakes and inks |
| CN114958077B (en) * | 2021-02-24 | 2023-04-25 | 惠州市华阳光学技术有限公司 | Magnetic pigment flakes, optically variable inks and anti-counterfeiting products |
| CN116543637B (en) * | 2023-04-20 | 2025-07-29 | 大湾区大学(筹) | 3D random magnetic grain digital anti-counterfeiting mark and preparation method thereof |
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