CN110204925A - A kind of high chroma magnetic pigment flakes and preparation method thereof - Google Patents
A kind of high chroma magnetic pigment flakes and preparation method thereof Download PDFInfo
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- CN110204925A CN110204925A CN201910464846.3A CN201910464846A CN110204925A CN 110204925 A CN110204925 A CN 110204925A CN 201910464846 A CN201910464846 A CN 201910464846A CN 110204925 A CN110204925 A CN 110204925A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/0078—Pigments consisting of flaky, non-metallic substrates, characterised by a surface-region containing free metal
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
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Abstract
This application provides a kind of high chroma magnetic pigment flakes and preparation method thereof.The high chroma magnetic pigment flakes include reflector layer and be cascadingly set on reflector layer the first main surface first medium layer, the first magnetosphere and second dielectric layer.Second dielectric layer in the high chroma magnetic pigment flakes of the application can play a protective role to magnetosphere, improve the tolerance performance of the high chroma magnetic pigment flakes；Meanwhile the magnetic layer thickness of the high chroma magnetic pigment flakes is relatively thin, inside is not easily formed demagnetizing field, so that magnetic domain is less, domain wall energy is higher, and magnetic conductivity increases, and makes the high chroma magnetic pigment flakes be easier to magnetize, has better color developing effect.
Description
Technical field
This application involves magnetic pigment flakes fields, more particularly to a kind of high chroma magnetic pigment flakes and preparation method thereof.
Background technique
Optical color variable pigment is a kind of high-end security pigment being concerned on the market in recent years, by certain spectroscopic characteristics
Optical discoloration film fragment composition, magnetic optically pigment therein because having the effect of scroll bar and changeable colors along with angle, and
Technical difficulty is high, and antifalse effect is good, using more and more extensive, for example applies the anti-fake skill at 2015 editions 100 yuans
In art.
In currently used magnetic paint, the color saturation of the few magnetic paint of the number of plies is relatively low, and color is not bright-coloured enough；The number of plies
More magnetic paints will increase production cost and difficulty of processing in process of production.
Summary of the invention
The application provides a kind of high chroma magnetic pigment flakes and preparation method thereof, to solve magnetic paint color in the prior art
The problem that saturation degree is relatively low, colour developing is not bright-coloured enough.
In order to solve the above technical problems, the technical solution that the application uses is: providing a kind of high chroma magnetic paint
Piece, the high chroma magnetic pigment flakes include reflector layer and be cascadingly set in the first side of reflector layer first
Dielectric layer, magnetosphere and second dielectric layer.
According to one specific embodiment of the application, second main surface opposite with the first main surface of reflector layer further according to
Secondary stacking is provided with third dielectric layer, the second magnetosphere and the 4th dielectric layer, so that during pigment flakes have with reflector layer and be
The symmetrical structure of the heart.
According to one specific embodiment of the application, second main surface opposite with the first main surface of reflector layer further according to
Secondary stacking is provided with third dielectric layer, absorbed layer and the 4th dielectric layer.
According to one specific embodiment of the application, the physical thickness of absorbed layer is 2nm-50nm.
According to one specific embodiment of the application, the material of absorbed layer is one of chromium, titanium, vanadium, palladium, tungsten, molybdenum, niobium, tantalum
And its alloy.
According to one specific embodiment of the application, the material of reflector layer is aluminium, silver, copper, platinum, tin, titanium, palladium, rhodium, niobium and chromium
At least one of.
According to one specific embodiment of the application, the physical thickness of reflector layer is 5nm-1000nm.
According to one specific embodiment of the application, first medium layer, second dielectric layer, third dielectric layer and the 4th dielectric layer
Physical thickness is 5nm-1000nm.
According to one specific embodiment of the application, first medium layer, second dielectric layer, third dielectric layer and the 4th dielectric layer are adopted
Use same material.
According to one specific embodiment of the application, first medium layer, second dielectric layer, third dielectric layer and the 4th dielectric layer are adopted
With different types of material.
According to one specific embodiment of the application, first medium layer, second dielectric layer, third dielectric layer and the 4th dielectric layer are adopted
It is less than or equal to 1.65 dielectric material with refractive index.
According to one specific embodiment of the application, first medium layer, second dielectric layer, third dielectric layer and the 4th dielectric layer
Material is respectively silica, aluminium oxide, magnesium fluoride, aluminum fluoride, cerium fluoride, lanthanum fluoride, neodymium fluoride, samaric fluoride, barium fluoride, fluorine
Change at least one of calcium and lithium fluoride.
According to one specific embodiment of the application, first medium layer, second dielectric layer, third dielectric layer and the 4th dielectric layer are adopted
It is greater than 1.65 dielectric material with refractive index.
According to one specific embodiment of the application, first medium layer, second dielectric layer, third dielectric layer and the 4th dielectric layer
Material is lanthanium titanate, titanium pentoxide, niobium pentaoxide, zinc sulphide, zinc oxide, zirconium oxide, titanium dioxide, carbon, indium oxide, oxygen
Change indium tin, tantalum pentoxide, cerium oxide, yttrium oxide, europium oxide, iron oxide, hafnium nitride, hafnium carbide, hafnium oxide, lanthana, oxygen
Change magnesium, neodymia, praseodymium oxide, samarium oxide, antimony trioxide, silicon carbide, silicon nitride, silicon monoxide, selenium trioxide, tin oxide and three
At least one of tungsten oxide.
According to one specific embodiment of the application, the first magnetosphere and the second magnetosphere are same material.
According to one specific embodiment of the application, the first magnetosphere and the second magnetosphere are not same material.
According to one specific embodiment of the application, the first magnetosphere and the second magnetospheric physical thickness are 2nm-100nm,
First magnetosphere and the second magnetosphere are as follows: at least one of iron, cobalt, nickel, gadolinium, terbium, dysprosium and erbium material or its oxide and its conjunction
Gold；At least one of iron/silicon alloy, iron/nickel alloy, iron/cobalt alloy and iron/nickel molybdenum alloy；SmCo5、NdCo5、Sm2Co17、
Nd2Fe14B and TbFe2At least one of；Or FFe3O4、NiFe2O4、MnFe2O4、CoFe2O4, in YIG and GdIG at least
It is a kind of
Another technical solution that the application uses is: providing a kind of method for preparing high chroma magnetic pigment flakes, comprising:
One basal layer is provided；Separation layer is formed on the base layer；Second dielectric layer, the first magnetosphere, are sequentially depositing on separation layer
One dielectric layer, reflector layer, third dielectric layer, the second magnetosphere and the 4th dielectric layer；Alternatively, on the separation layer successively
Deposit second dielectric layer, the first magnetosphere, first medium layer, reflector layer, third dielectric layer, absorbed layer and the 4th medium
Layer；Film layer combination from basal layer separation separation layer；Film layer combination is crushed, to form pigment flakes.
The beneficial effect of the application is: the case where being different from related technology, and the application high chroma magnetic pigment flakes include anti-
Beam layer and first medium layer, magnetosphere and the second dielectric layer being cascadingly set in the first side of reflector layer,
And it is cascadingly set on third dielectric layer, the second magnetosphere and the 4th dielectric layer of second main surface of reflector layer.
In this way, the second dielectric layer in the high chroma magnetic pigment flakes of the application can play a protective role to magnetosphere, mention
The tolerance performance of the high chroma magnetic pigment flakes is risen；Meanwhile the magnetic layer thickness of the high chroma magnetic pigment flakes is relatively thin, it is internal
It is not easily formed demagnetizing field, so that magnetic domain is less, domain wall energy is higher, and magnetic conductivity increases, and makes the high chroma magnetic pigment flakes
More easily magnetize, there is better color developing effect.
Detailed description of the invention
In order to more clearly explain the technical solutions in the embodiments of the present application, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the drawings in the following description are only some examples of the present application, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing, in which:
Fig. 1 is the structural schematic diagram of one embodiment of the application high chroma magnetic pigment flakes；
Fig. 2 is the structural schematic diagram of the another embodiment of the application high chroma magnetic pigment flakes；
Fig. 3 is the structural schematic diagram of another embodiment of the application high chroma magnetic pigment flakes
Fig. 4 is the spectral schematic of the reflectance versus wavelength of the application high chroma magnetic pigment flakes；
Fig. 5 is the flow diagram of one embodiment of preparation method of the application high chroma magnetic pigment flakes.
The flow diagram of the another embodiment of preparation method of Fig. 6 the application high chroma magnetic pigment flakes.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.It is based on
Embodiment in the application, those of ordinary skill in the art are obtained all other when not making creative work
Embodiment belongs to the range of the application protection.
It is to be appreciated that if relating to directionality instruction (such as up, down, left, right, before and after ...) in the embodiment of the present application,
Then directionality instruction be only used for explain under a certain particular pose (as shown in the picture) between each component relative positional relationship,
Motion conditions etc., if the particular pose changes, directionality instruction is also correspondingly changed correspondingly.
In addition, being somebody's turn to do " first ", " second " etc. if relating to the description of " first ", " second " etc. in the embodiment of the present application
Description be used for description purposes only, be not understood to indicate or imply its relative importance or implicitly indicate indicated skill
The quantity of art feature." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one spy
Sign.It in addition, the technical solution between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy
It is enough realize based on, will be understood that the knot of this technical solution when conflicting or cannot achieve when occurs in the combination of technical solution
Conjunction is not present, also not this application claims protection scope within.
In the conventional technology, the magnetic optically pigment structure of part company production are as follows: absorbed layer/dielectric layer/reflecting layer/magnetic
Property layer/reflecting layer/dielectric layer/absorbed layer two layers of reflecting layer is set compared to the magnetic paint of pervious 5 layers of structure, reflectivity has
It is improved, but color saturation is relatively low and color is not bright-coloured enough；The magnetic optically pigment structure of part company production are as follows: inhale
Layer/dielectric layer/reflecting layer/insulating layer/magnetosphere/insulating layer/reflecting layer/dielectric layer/absorbed layer is received, not only saturation degree is relatively low,
Color is not bright-coloured enough.And the number of plies is more, increases production cost and manufacture difficulty of processing.
To solve the above problems, the embodiment of the present application provides a kind of high chroma magnetic pigment flakes, refering to fig. 1, Fig. 1 is this Shen
Please one embodiment of high chroma magnetic pigment flakes structural schematic diagram.The high chroma magnetic pigment flakes include reflector layer 100 and
First medium layer 110, the first magnetosphere 120 being cascadingly set in the first main surface (not shown) of reflector layer 100
With second dielectric layer 130.
It is different from traditional technology, the second dielectric layer in high chroma magnetic pigment flakes in the present embodiment can play magnetosphere
To protective effect, the tolerance performance of the high chroma magnetic pigment flakes is improved；Meanwhile the magnetosphere of the high chroma magnetic pigment flakes
Thinner thickness, inside are not easily formed demagnetizing field, so that magnetic domain is less, domain wall energy is higher, and magnetic conductivity increases, and make the high color
It spends magnetic pigment flakes to be easier to magnetize, there is better color developing effect
Specifically, referring to Fig.2, Fig. 2 is the structural schematic diagram of the another embodiment of the application high chroma magnetic pigment flakes.Reflection
The second main surface (not shown) opposite with the first main surface (not shown) of body layer 100 is further cascading and has third
Dielectric layer 140, the second magnetosphere 150 and the 4th dielectric layer 160, so that pigment flakes have centered on reflector layer 100
Symmetrical structure.
It is different from traditional technology, the high chroma magnetic pigment flakes in the present embodiment include reflector layer 100 and successively layer
Folded first medium layer 110, the first magnetosphere 120 and the second dielectric layer 130 being set on the first main table of reflector layer 100,
Second main surface opposite with the first main surface of reflector layer 100, which is further cascading, third dielectric layer 140,
Two magnetospheres 150 and the 4th dielectric layer 160, so that pigment flakes have the symmetrical structure centered on reflector layer 100.It is logical
This mode is crossed, the second dielectric layer 130 and the 4th dielectric layer 160 in the high chroma magnetic pigment flakes of the application can be to the first magnetic
Property layer 120 and the second magnetosphere 150 play a protective role, and improve the overall tolerability energy of the high chroma magnetic pigment flakes；And
The thinner thickness of the high chroma magnetism the first magnetosphere 120 and the second magnetosphere 150, inside are not easily formed demagnetizing field, thus
Magnetic domain is less, and domain wall energy is higher, and magnetic conductivity increases, and the high chroma magnetic pigment flakes is made to be easier to magnetize；Meanwhile double-layer magnetic
Property layer structure so that magnetic moment is influenced each other, realize after high chroma magnetic pigment flakes determine magnetic, have better color developing effect.
Reflector layer 100 is at least one layer of structure being made of reflecting material, specifically, the material of reflector layer 100 can
For at least one of aluminium, silver, copper, platinum, tin, titanium, palladium, rhodium, niobium and chromium and its alloy；The material of reflector layer 100 can be
The material being made of above-mentioned simple substance can also be mixed to form alloy by above-mentioned metal material or compound forms.
In the present embodiment, the physical thickness of reflector layer 100 is 5nm between 1000nm, for example, reflector layer 100
Physical thickness can be for 5nm, 7nm, 10nm, 50nm, 100nm, 300nm, 500nm, 800nm or 1000nm etc..
Specifically, in the present embodiment, first medium layer 110, second dielectric layer 130, third dielectric layer 140 and the 4th are situated between
Same material, and first medium layer 110, second dielectric layer 130, third dielectric layer 140 and the 4th medium can be used in matter layer 160
The physical thickness of layer 160 is 5nm between 1000nm, for example, first medium layer 110, second dielectric layer 130, third dielectric layer
140 and the 4th dielectric layer 160 physical thickness can for 5nm, 6nm, 10nm, 20nm, 50nm, 99nm, 100nm, 150nm,
200nm, 500nm, 850nm or 1000nm etc..
In other embodiments, first medium layer 110, second dielectric layer 130, third dielectric layer 140 and the 4th dielectric layer
160 use different types of material, and first medium layer 110, second dielectric layer 130, third dielectric layer 140 and the 4th dielectric layer
160 physical thickness is 5nm between 1000nm, for example, first medium layer 110, second dielectric layer 130, third dielectric layer
140 and the 4th dielectric layer 160 physical thickness can for 5nm, 6nm, 10nm, 20nm, 50nm, 99nm, 100nm, 150nm,
200nm, 500nm, 850nm or 1000nm.
Optionally, first medium layer 110, second dielectric layer 130, third dielectric layer 140 and the 4th dielectric layer 160 can be set
It is set to identical physical thickness, alternatively, first medium layer 110, second dielectric layer 130, third dielectric layer 140 and the 4th dielectric layer
160 may be configured as different physical thickness.
Specifically, first medium layer 110, second dielectric layer 130, third dielectric layer 140 and the 4th dielectric layer 160 are using folding
The dielectric material that rate is less than or equal to 1.65 is penetrated, for example, first medium layer 110, second dielectric layer 130,140 and of third dielectric layer
The material of 4th dielectric layer 160 be respectively silica, aluminium oxide, magnesium fluoride, aluminum fluoride, cerium fluoride, lanthanum fluoride, neodymium fluoride,
At least one of samaric fluoride, barium fluoride, calcirm-fluoride and lithium fluoride；That is, first medium layer 110, second dielectric layer
130, the material of third dielectric layer 140 and the 4th dielectric layer 160 can be on one of above-mentioned material or at least two
State the mixture material of material composition.
In other embodiments, first medium layer 110, second dielectric layer 130, third dielectric layer 140 and the 4th dielectric layer
160 are greater than 1.65 dielectric material using refractive index, for example, first medium layer 110, second dielectric layer 130, third dielectric layer
140 and the 4th dielectric layer 160 material be lanthanium titanate, titanium pentoxide, niobium pentaoxide, zinc sulphide, zinc oxide, zirconium oxide,
Titanium dioxide, carbon, indium oxide, tin indium oxide, tantalum pentoxide, cerium oxide, yttrium oxide, europium oxide, iron oxide, hafnium nitride, carbon
Change hafnium, hafnium oxide, lanthana, magnesia, neodymia, praseodymium oxide, samarium oxide, antimony trioxide, silicon carbide, silicon nitride, an oxidation
At least one of silicon, selenium trioxide, tin oxide and tungstic acid.That is, first medium layer 110, second dielectric layer
130, the material of third dielectric layer 140 and the 4th dielectric layer 160 can be on one of above-mentioned material or at least two
State the mixture material of material composition.
Optionally, the first magnetosphere 120 and the second magnetosphere 150 can be same material.
Optionally, the first magnetosphere 120 and the second magnetosphere 150 can be not same material.
In the present embodiment, the physical thickness of the first magnetosphere 120 and the second magnetosphere 150 is 2nm-100nm, such as
2nm, 3nm, 10nm, 20nm, 50nm, 88nm, 90nm or 100nm etc..First magnetosphere 120 and the second magnetosphere 150 can be
At least one of iron, cobalt, nickel, gadolinium, terbium, dysprosium and erbium or its oxide and its alloy；That is, 120 He of the first magnetosphere
Second magnetosphere 150 can be to be made of above-mentioned pure metals, or by at least one of above-mentioned pure metals formed
Oxide composition, such as nickel oxide, cobalt oxide etc.；The alloy material being either made of above-mentioned pure metals.
Further, the first magnetosphere 1201 and the second magnetosphere 150 can be iron/silicon alloy, iron/nickel alloy, iron/cobalt
At least one of alloy and iron/nickel molybdenum alloy.That is, the first magnetosphere 120 and the second magnetosphere 150 can be by one
Kind alloy material composition, or the mixture being made of above-mentioned at least two alloy material.
First magnetosphere 120 and the second magnetosphere 150 are also possible to SmCo5、NdCo5、Sm2Co17、 Nd2Fe14B and TbFe2
At least one of.That is, the first magnetosphere 120 and the second magnetosphere 150 can be made of a kind of material, either
The mixture being made of above-mentioned at least two material.
First magnetosphere 120 and the second magnetosphere 150 can be Fe3O4、NiFe2O4、MnFe2O4、 CoFe2O4, YIG and
At least one of GdIG.That is, the first magnetosphere 120 and the second magnetosphere 150 can be made of a kind of material, or
The mixture that person is made of above-mentioned at least two material.
The case where being different from the relevant technologies, the pigment flakes in the embodiment of the present application include reflector layer 100 and successively layer
Folded first medium layer 110, magnetosphere 120 and the second dielectric layer 130 being set in the first side of reflector layer 100, and
It is cascadingly set on the third dielectric layer 140 of 100 second main surface of reflector layer, the second magnetosphere 150 and the 4th is situated between
Matter layer 160.In this way, the second dielectric layer 130 and the 4th dielectric layer 160 in the high chroma magnetic pigment flakes of the application
It can play a protective role to the first magnetosphere 120 and the second magnetosphere 150, the entirety for improving the high chroma magnetic pigment flakes is resistance to
By performance；And 150 thinner thickness of the first magnetosphere 120 and the second magnetosphere of the high chroma magnetic pigment flakes, inside is not easy
Demagnetizing field is formed, so that magnetic domain is less, domain wall energy is higher, and magnetic conductivity increases, and is easier the high chroma magnetic pigment flakes
Magnetization；Meanwhile first is added to non-magnetic material between magnetosphere 120 and the second magnetosphere 150, reduces magnetic domain number, and
And two between magnetism by the magnetostatically coupled effect of non magnetic formation, reduce magnetic domain number, magnetic conductivity increases, the high chroma magnetic
Property pigment flakes be easier magnetize；Magnetic moment between first magnetosphere 120 and the second magnetosphere 150 interacts, and realizes to work as and be somebody's turn to do
After high chroma magnetic pigment flakes determine magnetic, there is better color developing effect.
It is the structural schematic diagram of another embodiment of the application high chroma magnetic pigment flakes refering to Fig. 3, Fig. 3.The high chroma magnetic
Property pigment flakes include reflector layer 200 and the first medium that is cascadingly set in the first main surface of reflector layer 200
Layer 210, magnetosphere 220 and second dielectric layer 230, and stack gradually third Jie in the second main surface of reflector layer 200
Matter layer 240, absorbed layer 250 and the 4th dielectric layer 260.
It is different from traditional technology, the high chroma magnetic pigment flakes in the present embodiment include reflector layer 200 and successively layer
Folded first medium layer 210, magnetosphere 220 and the second dielectric layer 230 being set in the first main surface of reflector layer 200, with
And stack gradually third dielectric layer 240, absorbed layer 250 and the 4th dielectric layer 260 in the second main surface of reflector layer 200.
In this way, the 4th dielectric layer 260 in the high chroma magnetic pigment flakes in the present embodiment and second dielectric layer 230 can be right
Magnetosphere 220 plays a protective role, and improves the overall tolerability energy of the high chroma magnetic pigment flakes；Meanwhile the high chroma magnetic
220 thinner thickness of magnetosphere of property pigment flakes, inside is not easily formed demagnetizing field, so that magnetic domain is less, domain wall energy is higher,
Magnetic conductivity increases, and the high chroma magnetic pigment flakes is made to be easier to magnetize.
In the present embodiment, the physical thickness of absorbed layer 250 is 2nm between 50nm, for example, the physics of absorbed layer 250
Thickness can be 2nm, 3nm, 5nm, 10nm, 15nm, 20nm, 30nm, 40nm or 50nm etc..The material of the absorbed layer 250 is
One of chromium, titanium, vanadium, palladium, tungsten, molybdenum, niobium, tantalum and its alloy.I.e. the material of absorbed layer can be made of above-mentioned pure metals, or
Person is made of the alloy material that above-mentioned at least one material forms.
Reflector layer 200 includes at least one layer of reflecting material.Specifically, the material of reflector layer 200 can for aluminium, silver, copper,
At least one of platinum, tin, titanium, palladium, rhodium, niobium and chromium, and its physical thickness is 5nm between 1000nm, for example, reflector layer
200 physical thickness can be 5nm, 7nm, 10nm, 50nm, 100nm, 300nm, 500nm, 800nm or 1000nm etc..
In the present embodiment, first medium layer 210, second dielectric layer 230, third dielectric layer 240 and the 4th dielectric layer
260 use same material, and first medium layer 210, second dielectric layer 230, third dielectric layer 240 and the 4th dielectric layer 260
Physical thickness be 5nm between 1000nm
For example, first medium layer 210, second dielectric layer 230, the physics thickness of third dielectric layer 240 and the 4th dielectric layer 260
Degree can be 5nm, 6nm, 10nm, 20nm, 50nm, 99nm, 100nm, 150nm, 200nm, 500nm, 850nm or 1000nm etc..
In other embodiments, first medium layer 210, second dielectric layer 230, third dielectric layer 240 and the 4th dielectric layer
260 use different types of material, and first medium layer 210, second dielectric layer 230, third dielectric layer 240 and the 4th dielectric layer
260 physical thickness is 5nm between 1000nm, for example, first medium layer 210, second dielectric layer 230, third dielectric layer
240 and the 4th dielectric layer 260 physical thickness can for 5nm, 6nm, 10nm, 20nm, 50nm, 99nm, 100nm, 150nm,
200nm, 500nm, 850nm or 1000nm.
Optionally, first medium layer 210, second dielectric layer 230, third dielectric layer 240 and the 4th dielectric layer 260 can be set
It is set to identical physical thickness, alternatively, first medium layer 210, second dielectric layer 230, third dielectric layer 240 and the 4th dielectric layer
260 may be configured as different physical thickness.
First medium layer 210, second dielectric layer 230, third dielectric layer 240 and the 4th dielectric layer 260 are small using refractive index
In or equal to 1.65 dielectric material, for example, first medium layer 210, second dielectric layer 230, third dielectric layer 240 and the 4th be situated between
The material of matter layer 260 be respectively silica, aluminium oxide, magnesium fluoride, aluminum fluoride, cerium fluoride, lanthanum fluoride, neodymium fluoride, samaric fluoride,
At least one of barium fluoride, calcirm-fluoride and lithium fluoride.
In other embodiments, first medium layer 210, second dielectric layer 230, third dielectric layer 240 and the 4th dielectric layer
260 are greater than 1.65 dielectric material using refractive index, for example, first medium layer 210, second dielectric layer 230, third dielectric layer
240 and the 4th dielectric layer 260 material be lanthanium titanate, titanium pentoxide, niobium pentaoxide, zinc sulphide, zinc oxide, zirconium oxide,
Titanium dioxide, carbon, indium oxide, tin indium oxide, tantalum pentoxide, cerium oxide, yttrium oxide, europium oxide, iron oxide, hafnium nitride, carbon
Change hafnium, hafnium oxide, lanthana, magnesia, neodymia, praseodymium oxide, samarium oxide, antimony trioxide, silicon carbide, silicon nitride, an oxidation
At least one of silicon, selenium trioxide, tin oxide and tungstic acid.
In the present embodiment, the physical thickness of magnetosphere 220 be 2nm to 100nm, such as 2nm, 3nm, 10nm, 20nm,
50nm, 88nm, 90nm or 100nm etc..Magnetosphere 220 can be at least one of iron, cobalt, nickel, gadolinium, terbium, dysprosium and erbium or its
Oxide and its alloy；That is, magnetosphere 220 can be to be made of above-mentioned pure metals, or by above-mentioned simple substance
At least one oxide of the composition of material forms, such as nickel oxide, cobalt oxide etc.；Either it is made of above-mentioned pure metals
Alloy material.
Further, magnetosphere 220 can be in iron/silicon alloy, iron/nickel alloy, iron/cobalt alloy and iron/nickel molybdenum alloy
At least one.That is, magnetosphere 220 can be made of a kind of alloy material, or closed by above-mentioned at least two
The mixture of golden material composition.
Magnetosphere 220 is also possible to SmCo5、NdCo5、Sm2Co17、Nd2Fe14B and TbFe2At least one of.Namely
It says, magnetosphere 220 can be made of a kind of material, or the mixture being made of above-mentioned at least two material.
Magnetosphere 220 can be Fe3O4、NiFe2O4、MnFe2O4、CoFe2O4, at least one of YIG and GdIG.Also
It is to say, magnetosphere 220 can be made of a kind of material, or the mixture being made of above-mentioned at least two material.
It is the spectral schematic of the reflectance versus wavelength of magnetic pigment flakes in the embodiment of the present application refering to Fig. 4, Fig. 4.Wherein,
Ordinate is reflectivity, and abscissa is wavelength；Solid line represents Elex Products, Inc.'s magnetic film curve of spectrum, and dotted line represents this
Apply for the curve of spectrum of magnetic film in embodiment.It can be seen from the figure that the wave of the magnetic film (dotted line) in the embodiment of the present application
Long range is more narrower than the wave-length coverage of the magnetic film of Elex Products, Inc. (solid line)；Wave-length coverage is narrower, the color of magnetic film
Saturation degree is more preferable, and color is more bright-coloured.
Refering to Fig. 5, the flow diagram of one embodiment of preparation method of Fig. 5 the application high chroma magnetic pigment flakes.This Shen
Please embodiment a kind of method for preparing high chroma magnetic pigment flakes is provided, specific steps include:
S501: a basal layer is provided.
Specifically, base layer can be rigid basement, for example, the material of base layer can be quartz glass.
S502: separation layer is formed on the base layer.
S503: second dielectric layer 130, the first magnetosphere 120, first medium layer 110, reflection are sequentially depositing on separation layer
Body layer 100, third dielectric layer 140, the second magnetosphere 150 and the 4th dielectric layer 160.
Wherein, in rigid basement, with separation layer, second dielectric layer 130, the first magnetosphere 120, first medium layer 110,
Reflector layer 100, third dielectric layer 140, the second magnetosphere 150 and the 4th dielectric layer 160 are the period, repeat vapor deposition 20 to 30
It is secondary, or more times, can guarantee effective production time to greatest extent, it can be improved equipment capacity, reduce production cost, it can
Improve existence efficiency.
S504: the film layer combination from basal layer separation separation layer.
After carrying out multiplicating vapor deposition by above-mentioned evaporation coating method, multiple separation layers and multiple face are formd in rigid basement
The periodical composite construction that tablet is stacked after deposition, rigid basement is immersed in specific solvent and carries out organic stripping process,
Composite pigment chip architecture is separated from separation layer.
S505: film layer combination is crushed, to form pigment flakes.
Isolated composite pigment piece is collected, multiple pigment flakes fragments are ground into, for adding in ink or coating
In, to provide magnetic and changeable colors along with angle characteristic.
The case where being different from the relevant technologies, the method for preparing high chroma magnetic pigment flakes of the embodiment of the present application include providing
One basal layer；Separation layer is formed on the base layer；Be sequentially depositing on separation layer second dielectric layer 130, the first magnetosphere 120,
First medium layer 110, reflector layer 100, third dielectric layer 140, the second magnetosphere 150 and the 4th dielectric layer 160；From substrate
Film layer combination on layer separation separation layer；Film layer combination is crushed, to form pigment flakes；Wherein, with separation layer,
Second medium layer 130, the first magnetosphere 120, first medium layer 110, reflector layer 100, third dielectric layer 140, the second magnetosphere
150 and the 4th dielectric layer 160 be the period, repeat be deposited, ensure that effective production time to greatest extent, improve equipment production
Can, production cost is reduced, existence efficiency is improved；On the other hand, which has good magnetic and changeable colors along with angle characteristic,
Color saturation is high, bright-colored.
Refering to Fig. 6, the flow diagram of the another embodiment of preparation method of Fig. 6 the application high chroma magnetic pigment flakes.This
Application embodiment provides a kind of method for preparing high chroma magnetic pigment flakes, and specific steps include:
S601: a basal layer is provided.
Specifically, base layer can be rigid basement, for example, the material of base layer can be quartz glass.
S602: separation layer is formed on the base layer.
S603: second dielectric layer 230, the first magnetosphere 220, first medium layer 210, reflection are sequentially depositing on separation layer
Body layer 200, third dielectric layer 240, absorbed layer 250 and the 4th dielectric layer 260.
Wherein, in rigid basement, with second dielectric layer 230, the first magnetosphere 220, first medium layer 210, reflector
Layer 200, third dielectric layer 240, absorbed layer 250 and the 4th dielectric layer 260 are the period, repeat vapor deposition 20 to 30 times, Huo Zhegeng
Repeatedly, it can guarantee effective production time to greatest extent, can be improved equipment capacity, reduce production cost, can be improved existence
Efficiency.
S604: the film layer combination from basal layer separation separation layer.
After carrying out multiplicating vapor deposition by above-mentioned evaporation coating method, multiple separation layers and multiple face are formd in rigid basement
The periodical composite construction that tablet is stacked after deposition, rigid basement is immersed in specific solvent and carries out organic stripping process,
Composite pigment chip architecture is separated from separation layer.
S605: film layer combination is crushed, to form pigment flakes.
Isolated composite pigment piece is collected, multiple pigment flakes fragments are ground into, for adding in ink or coating
In, to provide magnetic and changeable colors along with angle characteristic.
The case where being different from the relevant technologies, the method for preparing high chroma magnetic pigment flakes of the embodiment of the present application include providing
One basal layer；Separation layer is formed on the base layer；Be sequentially depositing on separation layer second dielectric layer 230, the first magnetosphere 220,
First medium layer 210, reflector layer 200, third dielectric layer 240, absorbed layer 250 and the 4th dielectric layer 260；From basal layer point
From the film layer combination on separation layer；Film layer combination is crushed, to form pigment flakes；Wherein, it is situated between with separation layer, second
Matter layer 230, the first magnetosphere 220, first medium layer 210, reflector layer 200, third dielectric layer 240, absorbed layer 250 and
4th dielectric layer 260 is the period, repeats to be deposited, ensure that effective production time to greatest extent, improve equipment capacity, reduces life
Cost is produced, existence efficiency is improved；On the other hand, which has good magnetic and changeable colors along with angle characteristic, color saturation
Height, it is bright-colored.
The foregoing is merely presently filed embodiments, are not intended to limit the scope of the patents of the application, all to utilize this
Equivalent structure or equivalent flow shift made by application specification and accompanying drawing content is applied directly or indirectly in other relevant
Technical field similarly includes in the scope of patent protection of the application.
Claims (18)
1. a kind of high chroma magnetic pigment flakes, which is characterized in that the pigment flakes include reflector layer and are cascading
In first medium layer, the first magnetosphere and second dielectric layer in the first main surface of the reflector layer.
2. pigment flakes according to claim 1, which is characterized in that the reflector layer it is opposite with first main surface
The second main surface be further cascading and have third dielectric layer, the second magnetosphere and the 4th dielectric layer so that described
Pigment flakes have the symmetrical structure centered on the reflector layer.
3. pigment flakes according to claim 1, which is characterized in that the reflector layer it is opposite with first main surface
The second main surface be further cascading and have third dielectric layer, absorbed layer and the 4th dielectric layer.
4. pigment flakes according to claim 3, which is characterized in that the physical thickness of the absorbed layer is 2nm-50nm.
5. pigment flakes according to claim 3, which is characterized in that the material of the absorbed layer be chromium, titanium, vanadium, palladium, tungsten,
One of molybdenum, niobium, tantalum and its alloy.
6. pigment flakes according to claim 2 or 3, which is characterized in that the material of the reflector layer be metallic aluminium, silver,
At least one of copper, platinum, tin, titanium, palladium, rhodium, niobium and chromium and its alloy.
7. pigment flakes according to claim 2 or 3, which is characterized in that the physical thickness of the reflector layer is 5nm-
1000nm。
8. pigment flakes according to claim 2 or 3, which is characterized in that the first medium layer, the second dielectric layer,
The physical thickness of the third dielectric layer and the 4th dielectric layer is 5nm-1000nm.
9. pigment flakes according to claim 2 or 3, which is characterized in that the first medium layer, the second dielectric layer,
The third dielectric layer and the 4th dielectric layer use same material.
10. pigment flakes according to claim 2 or 3, which is characterized in that the first medium layer, the second dielectric layer,
The third dielectric layer and the 4th dielectric layer use different types of material.
11. pigment flakes according to claim 2 or 3, which is characterized in that the first medium layer, the second dielectric layer,
The third dielectric layer and the 4th dielectric layer are less than or equal to 1.65 dielectric material using refractive index.
12. pigment flakes according to claim 11, which is characterized in that the first medium layer, the second dielectric layer, institute
The material for stating third dielectric layer and the 4th dielectric layer includes silica, aluminium oxide, magnesium fluoride, aluminum fluoride, cerium fluoride, fluorine
Change at least one of lanthanum, neodymium fluoride, samaric fluoride, barium fluoride, calcirm-fluoride and lithium fluoride.
13. pigment flakes according to claim 2 or 3, which is characterized in that the first medium layer, the second dielectric layer,
The third dielectric layer and the 4th dielectric layer are greater than 1.65 dielectric material using refractive index.
14. pigment flakes according to claim 13, which is characterized in that the first medium layer, the second dielectric layer, institute
Stating third dielectric layer and the 4th dielectric layer includes lanthanium titanate, titanium pentoxide, niobium pentaoxide, zinc sulphide, zinc oxide, oxygen
Change zirconium, titanium dioxide, carbon, indium oxide, tin indium oxide, tantalum pentoxide, cerium oxide, yttrium oxide, europium oxide, iron oxide, nitridation
Hafnium, hafnium carbide, hafnium oxide, lanthana, magnesia, neodymia, praseodymium oxide, samarium oxide, antimony trioxide, silicon carbide, silicon nitride, one
At least one of silica, selenium trioxide, tin oxide and tungstic acid.
15. pigment flakes according to claim 2, which is characterized in that first magnetosphere and second magnetosphere are
Same material.
16. pigment flakes according to claim 2, which is characterized in that first magnetosphere and second magnetosphere are
Not same material.
17. pigment flakes according to claim 2, which is characterized in that first magnetosphere and described second magnetospheric
Physical thickness is 2nm-100nm, first magnetosphere and second magnetosphere are as follows:
At least one of iron, cobalt, nickel, gadolinium, terbium, dysprosium and erbium material or its oxide and its alloy；
At least one of iron/silicon alloy, iron/nickel alloy, iron/cobalt alloy and iron/nickel molybdenum alloy；
SmCo5、NdCo5、Sm2Co17、Nd2Fe14B and TbFe2At least one of；Or
Fe3O4、NiFe2O4、MnFe2O4、CoFe2O4, at least one of YIG and GdIG.
18. a kind of method for preparing high chroma magnetic pigment flakes characterized by comprising
One basal layer is provided；
Separation layer is formed on the basal layer；
Second dielectric layer, the first magnetosphere, first medium layer, reflector layer, third medium are sequentially depositing on the separation layer
Layer, the second magnetosphere and the 4th dielectric layer；Alternatively, be sequentially depositing on the separation layer second dielectric layer, the first magnetosphere,
First medium layer, reflector layer, third dielectric layer, absorbed layer and the 4th dielectric layer；
The combination of the film layer on the separation layer is separated from the basal layer；
Film layer combination is crushed, to form the pigment flakes.
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| CN110669360A (en) * | 2019-08-30 | 2020-01-10 | 惠州市华阳光学技术有限公司 | Composite color pigment flake and preparation method thereof |
| CN111574860A (en) * | 2020-06-17 | 2020-08-25 | 惠州市华阳光学技术有限公司 | Metallic pigment flakes and metallic inks |
| 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 |
| CN112708288A (en) * | 2020-05-21 | 2021-04-27 | 厦门大学 | Magnetic structure color film |
| CN114891368A (en) * | 2022-05-06 | 2022-08-12 | 惠州市华阳光学技术有限公司 | Magnetic optically variable pigment |
| CN114958032A (en) * | 2021-02-26 | 2022-08-30 | 惠州市华阳光学技术有限公司 | Photochromic pigment with high color saturation |
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