CN110136565A - On-Screen Identification liquid crystal anti-counterfeiting mark and preparation method thereof - Google Patents
On-Screen Identification liquid crystal anti-counterfeiting mark and preparation method thereof Download PDFInfo
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- CN110136565A CN110136565A CN201910559341.5A CN201910559341A CN110136565A CN 110136565 A CN110136565 A CN 110136565A CN 201910559341 A CN201910559341 A CN 201910559341A CN 110136565 A CN110136565 A CN 110136565A
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 76
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 239000010410 layer Substances 0.000 claims abstract description 180
- 238000000576 coating method Methods 0.000 claims abstract description 29
- 239000011248 coating agent Substances 0.000 claims abstract description 28
- 239000002985 plastic film Substances 0.000 claims abstract description 24
- 229920006255 plastic film Polymers 0.000 claims abstract description 24
- 238000007639 printing Methods 0.000 claims abstract description 24
- 239000000758 substrate Substances 0.000 claims abstract description 21
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims abstract description 12
- 238000004026 adhesive bonding Methods 0.000 claims abstract description 7
- 239000007800 oxidant agent Substances 0.000 claims abstract description 7
- 230000001590 oxidative effect Effects 0.000 claims abstract description 7
- 230000006698 induction Effects 0.000 claims abstract description 5
- 239000003999 initiator Substances 0.000 claims description 31
- 239000003112 inhibitor Substances 0.000 claims description 19
- 238000000926 separation method Methods 0.000 claims description 15
- 239000002904 solvent Substances 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 11
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 9
- 229920000106 Liquid crystal polymer Polymers 0.000 claims description 9
- 239000004977 Liquid-crystal polymers (LCPs) Substances 0.000 claims description 9
- 150000001875 compounds Chemical class 0.000 claims description 8
- 210000004276 hyalin Anatomy 0.000 claims description 8
- 239000012528 membrane Substances 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 8
- 229940126062 Compound A Drugs 0.000 claims description 7
- NLDMNSXOCDLTTB-UHFFFAOYSA-N Heterophylliin A Natural products O1C2COC(=O)C3=CC(O)=C(O)C(O)=C3C3=C(O)C(O)=C(O)C=C3C(=O)OC2C(OC(=O)C=2C=C(O)C(O)=C(O)C=2)C(O)C1OC(=O)C1=CC(O)=C(O)C(O)=C1 NLDMNSXOCDLTTB-UHFFFAOYSA-N 0.000 claims description 7
- LVTJOONKWUXEFR-FZRMHRINSA-N protoneodioscin Natural products O(C[C@@H](CC[C@]1(O)[C@H](C)[C@@H]2[C@]3(C)[C@H]([C@H]4[C@@H]([C@]5(C)C(=CC4)C[C@@H](O[C@@H]4[C@H](O[C@H]6[C@@H](O)[C@@H](O)[C@@H](O)[C@H](C)O6)[C@@H](O)[C@H](O[C@H]6[C@@H](O)[C@@H](O)[C@@H](O)[C@H](C)O6)[C@H](CO)O4)CC5)CC3)C[C@@H]2O1)C)[C@H]1[C@H](O)[C@H](O)[C@H](O)[C@@H](CO)O1 LVTJOONKWUXEFR-FZRMHRINSA-N 0.000 claims description 7
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 6
- 239000003292 glue Substances 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 5
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 229940114081 cinnamate Drugs 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- 230000010287 polarization Effects 0.000 claims description 4
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- 238000007711 solidification Methods 0.000 claims description 4
- 230000008023 solidification Effects 0.000 claims description 4
- WBYWAXJHAXSJNI-VOTSOKGWSA-M trans-cinnamate Chemical compound [O-]C(=O)\C=C\C1=CC=CC=C1 WBYWAXJHAXSJNI-VOTSOKGWSA-M 0.000 claims description 4
- LWRBVKNFOYUCNP-UHFFFAOYSA-N 2-methyl-1-(4-methylsulfanylphenyl)-2-morpholin-4-ylpropan-1-one Chemical compound C1=CC(SC)=CC=C1C(=O)C(C)(C)N1CCOCC1 LWRBVKNFOYUCNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 16
- 238000005516 engineering process Methods 0.000 description 16
- 238000000034 method Methods 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000013019 agitation Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000009878 intermolecular interaction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/133753—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers with different alignment orientations or pretilt angles on a same surface, e.g. for grey scale or improved viewing angle
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
- G09F3/02—Forms or constructions
- G09F3/0291—Labels or tickets undergoing a change under particular conditions, e.g. heat, radiation, passage of time
- G09F3/0294—Labels or tickets undergoing a change under particular conditions, e.g. heat, radiation, passage of time where the change is not permanent, e.g. labels only readable under a special light, temperature indicating labels and the like
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/133753—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers with different alignment orientations or pretilt angles on a same surface, e.g. for grey scale or improved viewing angle
- G02F1/133757—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers with different alignment orientations or pretilt angles on a same surface, e.g. for grey scale or improved viewing angle with different alignment orientations
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Polarising Elements (AREA)
- Credit Cards Or The Like (AREA)
Abstract
The present invention relates to a kind of anti-counterfeiting marks, and in particular to a kind of On-Screen Identification liquid crystal anti-counterfeiting mark and preparation method thereof.The On-Screen Identification liquid crystal anti-counterfeiting mark, including plastic film layer, chromatograph, oriented layer, liquid crystal layer, gluing oxidant layer, printing layer, substrate layer and the pressure-sensitive adhesive layer set gradually from top to bottom, wherein, oriented layer is the coating that one layer of induction liquid crystal molecule aligns, it includes at least two optically anisotropic regions of difference, phase-delay difference n λ/2, n having the same are odd number in two regions；The mark comprising naked eyes can not Direct Recognition hiding information, show hiding information under polarizing light irradiation, direction changes 90 ° of display yin yang complementarity patterns.The mark include naked eyes can not Direct Recognition hiding information, which can observe by the polarised light that mobile phone screen or computer screen issue, and identify that simple, antifalse effect is good, and can effectively prevent secondary use；Preparation method, it is scientific and reasonable, simple and easy.
Description
Technical field
The present invention relates to a kind of anti-counterfeiting marks, and in particular to a kind of On-Screen Identification liquid crystal anti-counterfeiting mark and preparation method thereof.
Background technique
Anti-fake product is to be used made of anti-counterfeiting technology for the purpose of anti-fake, had anti-fraud functional product.Due to coloured silk
, there is forgery anti-fake product and constantly increases in constantly universal and various printing technologies the continuous development of color duplicator and imaging system
More phenomenons.The anti-counterfeiting technology forged is fought, according to whether the auxiliary for needing identification facility, is divided into that a line is anti-fake and two wires
Anti-fake two class.One line is anti-fake to be referred to and not to need by any tool, the anti-counterfeiting technology that can be directly judged by naked eye.Two wires
It is anti-fake to refer to the anti-counterfeiting technology for needing to identify by simple tool.
In one line anti-counterfeiting technology, it is one of more effective means that light, which becomes technology,.What optically variable anti-counterfeiting element had becomes with angle
Color characteristic is easy to public identification, facilitates the propagation that counterfeit is prevented from the field of circulation.However, as light becomes the continuous hair of technology
Exhibition and the marketization, make light dependent element increasingly by the threat of counterfeit, gradually weaken it as anti-fake effect.Such as it is complete
The marketization that breath light becomes technology has obtained swift and violent development in recent years, and holographic optical sells of one's property product and is readily apparent；With with angle
The manufacturing technology of the optically variable pigments of color changeable effect is gradually popularized, and is challenged with anti-fake effect that the light of angle discoloration becomes technology.
The certain auxiliary tool of the needs such as two wires anti-counterfeiting technology, such as fluorescence falsification preventing, infrared anti-false is identified.This kind of skill
Art good concealment, some high-caliber technologies can obtain good antifalse effect, but two wires anti-counterfeiting technology has one always
Problem is exactly that identification facility can not be popularized well, affects the convenience of truth identification.
With the progress of science and technology, display device obtains especially using smart phone as the portable display apparatus of representative
The large-scale of explosion type is popularized.Smart phone provides new potentiality for anti-counterfeit recognition, if it is possible to using smart phone as
The value and effect of two wires anti-counterfeiting technology will be substantially improved in anti-counterfeit recognition tool.
If preparing the label that can use On-Screen Identification, the convenience of the truth identification of mark can be greatly improved.
Summary of the invention
For the above the deficiencies in the prior art, the technical problems to be solved by the present invention are: providing a kind of On-Screen Identification liquid
Brilliant anti-counterfeiting mark, the mark include naked eyes can not Direct Recognition hiding information, which can be by mobile phone screen or computer
The polarised light that screen issues observes that identification is simple, antifalse effect is good, and can effectively prevent secondary use；The present invention is same
When preparation method is provided, it is scientific and reasonable, simple and easy.
On-Screen Identification liquid crystal anti-counterfeiting mark of the present invention, including set gradually from top to bottom plastic film layer, chromatograph, take
To layer, liquid crystal layer, gluing oxidant layer, printing layer, substrate layer and pressure-sensitive adhesive layer, wherein
Oriented layer is the coating that one layer of induction liquid crystal molecule aligns, and includes at least two different optical anisotropies
Region, two regions phase-delay difference n λ/2, n having the same are odd number；
It is described mark comprising naked eyes can not Direct Recognition hiding information, hiding information is shown under polarizing light irradiation,
Direction changes 90 ° of display yin yang complementarity patterns.
The polarised light is the polarised light that mobile phone screen or computer screen issue.
The plastic film layer is PET hyaline membrane, PC hyaline membrane or PP hyaline membrane, with a thickness of 16-80 μm, plays protection mark
The effect of knowledge, is hardly damaged.
The chromatograph provides background color, keeps the effect of liquid crystal display more obvious.Monochromatic value (CMYK) 5-30 of printing, preferably
Monochromatic color value 20.
The gluing oxidant layer can be pressure sensitive adhesive, polyurethane bicomponent glue or white glue with vinyl, overlay film effect.
The printing layer information is the combination of one or more of one-dimension code, two dimensional code or variable graphic.Wherein, may be used
Becoming picture and text includes logo picture and text.
The substrate layer uses anti-transfer substrate, and the mark is prevented to be heated secondary use after rear global transfer.
The substrate layer is using one of art paper, speciality paper, plastic film, synthetic paper or fragile paper.Work as use
When art paper, speciality paper, plastic film or synthetic paper, is cut using preceding using flower knife, there is anti-transfer effect after cutting
Fruit prevents mark to be heated rear global transfer.
It is provided with off-style paper layer below the pressure-sensitive adhesive layer, off-style paper layer is pocessed using the common process of this field compound.
Separation layer is provided between the plastic film layer and chromatograph.When opening, mark separates from separation layer, prevents
After criminal shifts liquid crystal layer, it is re-prepared as identifying secondary use.It is important for liquid crystal in liquid crystal anti-counterfeiting mark
Layer, the setting of separation layer are reused after liquid crystal layer capable of being prevented to be transferred.
The preparation method of On-Screen Identification liquid crystal anti-counterfeiting mark of the present invention, comprising the following steps:
1) chromatograph is printed in the one side of plastic film layer；
2) it is coated with, is orientated on chromatograph, form oriented layer；
3) it is coated with one layer of liquid crystal polymer coating in oriented layer, by solidification, forms liquid crystal layer；
4) substrate layer forms printing layer by printing；
5) printing layer and liquid crystal layer are combined with each other using adhesive, in the non-printed side pressure-sensitive adhesive coating of substrate layer,
It is die cut, obtain anti-counterfeiting mark.
Wherein:
Chromatograph is republished after being coated with separation layer on plastic film layer；The separation layer using Germany ACMOS 101-5017 into
Row coating.
The application method of the ACMOS 101-5017 is as follows:
By 1:10 (alcohol): being coated after 11 (pure water) proportion (mass ratio) agitation and dilution, Coating Speed 70-
140m/min, oven temperature are 120-140 DEG C, and dry-coated amount is 0.3-2.5g/m2, dry-coated amount is bigger, and off-type force is smaller.
The oriented layer carries out orientation using light alignment method.
After the oriented layer is dissolved into solvent by mixed liquid crystal, photosensitive orientants, ultraviolet inhibitor and initiator
It is coated with,
By mass percentage, the sum of the dosage of mixed liquid crystal, photosensitive orientants, ultraviolet inhibitor and initiator is
100%,
The mixed liquid crystal is RM257, C6M and LC242 with the mixture of any ratio, and structural formula difference is as follows:
The photosensitive orientants are polyvinyl alcohol and cinnamate with the mixture of any ratio；
The ultraviolet inhibitor is gaultherolin；
The initiator is one or two kinds of mixture of Irgacure907 or Irgacure784；
The solvent is one of methylene chloride or acetone；
When prepared by oriented layer,
Mixed liquid crystal, photosensitive orientants, ultraviolet inhibitor and initiator are dissolved into solvent first, stirring is made solid
Content is the coating of 20-30%, and coating is coated on chromatograph, and the letter of linear polarization ultraviolet light write-in different directions is used after drying
Breath, then carries out being solidified into oriented layer under uv lamps.
Wherein, above-mentioned initiator can be played generates free radicals under ultraviolet light irradiation, causes the work of polymer monomer polymerization
With.The solid content of above-mentioned coating is preferably 25%, and the content is mass percentage.
The photosensitive orientants can online polarized ultraviolet irradiation it is lower occur directional light crosslinking and photodestruciton reaction and
Cause the anisotropy of molecular arrangement, and further passes through the material of the transmitting aligned liquid-crystal molecule of intermolecular interaction.
The ultraviolet inhibitor can stablize anti-counterfeiting information, prevent from causing liquid crystal display effect to shoal because illumination acts on
Or it disappears.
The liquid crystal polymer coating is made of the raw material of following weight percent:
Wherein,
The structural formula of compound A are as follows:
The structural formula of compound B are as follows:
The structural formula of compound C are as follows:
Initiator A is TPO；
Initiator B is Irgacure819；
When prepared by liquid crystal layer, initiator is added into compound A, compound B and compound C, is heated to 50-65 DEG C, stirs
Mix uniformly, be coated in oriented layer, be formed by curing liquid crystal layer through UV, the liquid crystal layer with a thickness of 0.5-2g/m2。
Preferably 60 DEG C of above-mentioned heating temperature.
The liquid crystal layer is to be coated with one layer of liquid crystal polymer in oriented layer under polarized light may be used by being formed by curing
Light and shade difference is formed, visible implicit pattern is formed.
When consumer discerns the false from the genuine:
1, naked eye can't see implicit pattern, and using mobile phone screen, computer screen irradiating liquid crystal layer, hiding figure can be presented
Case, and as yin-yang switching occurs in the rotating pattern of mobile phone screen；It is observed using polaroid, left-handed and dextrorotation polaroid difference
Yin-Yang pattern is presented.
2, naked eyes are observed in the sunlight, are presented with angle optically variable effect.
In conclusion the beneficial effects of the present invention are:
1, anti-counterfeiting mark of the present invention, performance is more stable, it is beautiful, be hardly damaged.
2, present invention mark identifies simple and convenient, and naked eye can't see implicit pattern, use mobile phone screen, computer screen
Implicit pattern can be presented in irradiating liquid crystal layer, and as yin-yang switching occurs in the rotating pattern of mobile phone screen；It is seen using polaroid
It examines, Yin-Yang pattern is presented in left-handed and dextrorotation polaroid respectively, and consumer can easily judge the true and false.
3, present invention mark has extraordinary anti-transfer effect, can effectively prevent secondary use.
4, preparation method of the invention, it is scientific and reasonable, simple and easy.
Detailed description of the invention
Fig. 1 is schematic diagram of a layer structure of the invention；
In figure: 1, plastic film layer；2, chromatograph；3, oriented layer；4, liquid crystal layer；5, gluing oxidant layer；6, printing layer；7, substrate layer；
8, pressure-sensitive adhesive layer；9, off-style paper layer；10, separation layer.
Specific embodiment
The embodiment of the present invention is described further with reference to the accompanying drawing.
The structural formula of RM257 used in the examples is as follows:
The structural formula of C6M is as follows:
The structural formula of LC242 is as follows:
The structural formula of compound A are as follows:
The structural formula of compound B are as follows:
The structural formula of compound C are as follows:
Embodiment 1
The On-Screen Identification liquid crystal anti-counterfeiting mark, including plastic film layer 1, the chromatograph 2, oriented layer set gradually from top to bottom
3, liquid crystal layer 4, gluing oxidant layer 5, printing layer 6, substrate layer 7 and pressure-sensitive adhesive layer 8, wherein
Oriented layer 3 is the coating that one layer of induction liquid crystal molecule aligns, and includes at least two different optics respectively to different
The region of property, two regions phase-delay difference n λ/2 having the same, n are odd number；
It is described mark comprising naked eyes can not Direct Recognition hiding information, hiding information is shown under polarizing light irradiation,
Direction changes 90 ° of display yin yang complementarity patterns.
The plastic film layer 1 is PET hyaline membrane, with a thickness of 40 μm.
6 information of printing layer is one-dimension code, two dimensional code and variable graphic.
The substrate layer 7 uses fragile paper.
Off-style paper layer 9 is provided with below the pressure-sensitive adhesive layer 8.
Separation layer 10 is provided between the plastic film layer 1 and chromatograph 2.
The preparation method of the mark the following steps are included:
1) chromatograph 2 is printed in the one side of plastic film layer 1；
2) it is coated with, is orientated on chromatograph 2, form oriented layer 3；
3) it is coated with one layer of liquid crystal polymer coating in oriented layer 3, by solidification, forms liquid crystal layer 4；
4) substrate layer 7 forms printing layer 6 by printing；
5) printing layer 6 is combined with each other with liquid crystal layer 4 using adhesive, it is pressure-sensitive in the non-printed side coating of substrate layer 7
Glue, it is die cut, obtain anti-counterfeiting mark.
Wherein:
Chromatograph 2 is republished after being coated with separation layer 10 on plastic film layer 1；The separation layer 10 uses ACMOS 101-5017
It is coated.
The application method of the ACMOS 101-5017 is as follows:
By 1:10 (alcohol): being coated after 11 (pure water) proportion (mass ratio) agitation and dilution, Coating Speed 100m/
Min, oven temperature are 120 DEG C, and dry-coated amount is 0.5g/m2。
After the oriented layer 3 is dissolved into solvent by mixed liquid crystal, photosensitive orientants, ultraviolet inhibitor and initiator
It is coated with,
By mass percentage, the sum of the dosage of mixed liquid crystal, photosensitive orientants, ultraviolet inhibitor and initiator is
100%,
The mixed liquid crystal is the mixture of RM257, C6M and LC242, and the mass ratio of three is 2:2:1.
The photosensitive orientants are the mixture of polyvinyl alcohol and cinnamate, and the mass ratio of the two is 1:1.
The ultraviolet inhibitor is gaultherolin；
The initiator is Irgacure907.
The solvent is methylene chloride.
When prepared by oriented layer 3,
Mixed liquid crystal, photosensitive orientants, ultraviolet inhibitor and initiator are dissolved into solvent first, stirring is made solid
The coating that content is 25%, coating is coated on chromatograph 2, and the letter of linear polarization ultraviolet light write-in different directions is used after drying
Breath, then carries out being solidified into oriented layer 3 under uv lamps.
The liquid crystal polymer coating is made of the raw material of following weight percent:
Initiator A is TPO；
Initiator B is Irgacure819；
When prepared by liquid crystal layer 4, initiator is added into compound A, compound B and compound C, is heated to 60 DEG C, stirring
Uniformly, be coated in oriented layer 3, be formed by curing liquid crystal layer 4 through UV, the liquid crystal layer 4 with a thickness of 1.5g/m2。
Embodiment 2
The On-Screen Identification liquid crystal anti-counterfeiting mark, including plastic film layer 1, the chromatograph 2, oriented layer set gradually from top to bottom
3, liquid crystal layer 4, gluing oxidant layer 5, printing layer 6, substrate layer 7 and pressure-sensitive adhesive layer 8, wherein
Oriented layer 3 is the coating that one layer of induction liquid crystal molecule aligns, and includes at least two different optics respectively to different
The region of property, two regions phase-delay difference n λ/2 having the same, n are odd number；
It is described mark comprising naked eyes can not Direct Recognition hiding information, hiding information is shown under polarizing light irradiation,
Direction changes 90 ° of display yin yang complementarity patterns.
The plastic film layer 1 is PP hyaline membrane, with a thickness of 16 μm.
6 information of printing layer is one-dimension code and two dimensional code.
The substrate layer 7 uses art paper, is cut using preceding using flower knife, has anti-transfer effect after cutting
Fruit.
Off-style paper layer 9 is provided with below the pressure-sensitive adhesive layer 8.
Separation layer 10 is provided between the plastic film layer 1 and chromatograph 2.
The preparation method of the mark the following steps are included:
1) chromatograph 2 is printed in the one side of plastic film layer 1；
2) it is coated with, is orientated on chromatograph 2, form oriented layer 3；
3) it is coated with one layer of liquid crystal polymer coating in oriented layer 3, by solidification, forms liquid crystal layer 4；
4) substrate layer 7 forms printing layer 6 by printing；
5) printing layer 6 is combined with each other with liquid crystal layer 4 using adhesive, it is pressure-sensitive in the non-printed side coating of substrate layer 7
Glue, it is die cut, obtain anti-counterfeiting mark.
Wherein:
Chromatograph 2 is republished after being coated with separation layer 10 on plastic film layer 1；The separation layer 10 uses ACMOS 101-5017
It is coated, coating method is the same as embodiment 1.
After the oriented layer 3 is dissolved into solvent by mixed liquid crystal, photosensitive orientants, ultraviolet inhibitor and initiator
It is coated with,
By mass percentage, the sum of the dosage of mixed liquid crystal, photosensitive orientants, ultraviolet inhibitor and initiator is
100%,
The mixed liquid crystal is the mixture of RM257, C6M and LC242, and the mass ratio of three is 1:1:3.
The photosensitive orientants are the mixture of polyvinyl alcohol and cinnamate, and the mass ratio of the two is 2:1.
The ultraviolet inhibitor is gaultherolin；
The initiator is Irgacure784.
The solvent is acetone.
When prepared by oriented layer 3,
Mixed liquid crystal, photosensitive orientants, ultraviolet inhibitor and initiator are dissolved into solvent first, stirring is made solid
The coating that content is 20%, coating is coated on chromatograph 2, and the letter of linear polarization ultraviolet light write-in different directions is used after drying
Breath, then carries out being solidified into oriented layer 3 under uv lamps.
The liquid crystal polymer coating is made of the raw material of following weight percent:
Initiator A is TPO；
Initiator B is Irgacure819；
When prepared by liquid crystal layer 4, initiator is added into compound A, compound B and compound C, is heated to 50 DEG C, stirring
Uniformly, be coated in oriented layer 3, be formed by curing liquid crystal layer 4 through UV, the liquid crystal layer 4 with a thickness of 0.5g/m2。
Comparative example
The structure of the mark and the preparation method is the same as that of Example 1.
The difference is that not containing ultraviolet inhibitor.
By mass percentage, the sum of dosage of mixed liquid crystal, photosensitive orientants and initiator is 100%,
Mixed liquid crystal 85.5%；
Photosensitive orientants 14%；
Initiator 0.5%.
The mark of embodiment 1 and comparative example preparation is placed under the conditions of illumination (outdoor natural light) and is placed 6 months, every 2
The moon carries out anti-counterfeiting information reading, and logo definition is as shown in the table:
Table 1
| 0th month | 2nd month | April | June | |
| Embodiment 1 | ☆☆☆☆☆ | ☆☆☆☆☆ | ☆☆☆☆ | ☆☆☆☆ |
| Comparative example | ☆☆☆☆☆ | ☆☆☆☆ | ☆☆☆ | ☆ |
As can be seen from the above table, ultraviolet inhibitor, which is added, in the application in 3 material of oriented layer can stablize anti-counterfeiting information,
Extend the service life of liquid crystal display effect.
Claims (10)
1. a kind of On-Screen Identification liquid crystal anti-counterfeiting mark, it is characterised in that: including plastic film layer (1), the color set gradually from top to bottom
Layer (2), oriented layer (3), liquid crystal layer (4), gluing oxidant layer (5), printing layer (6), substrate layer (7) and pressure-sensitive adhesive layer (8), wherein
Oriented layer (3) is the coating that one layer of induction liquid crystal molecule aligns, and includes at least two different optical anisotropies
Region, two regions phase-delay difference n λ/2, n having the same are odd number；
It is described mark comprising naked eyes can not Direct Recognition hiding information, hiding information, direction are shown under polarizing light irradiation
Change 90 ° of display yin yang complementarity patterns.
2. On-Screen Identification liquid crystal anti-counterfeiting mark according to claim 1, it is characterised in that: the plastic film layer (1) is PET
Hyaline membrane, PC hyaline membrane or PP hyaline membrane, with a thickness of 16-80 μm.
3. On-Screen Identification liquid crystal anti-counterfeiting mark according to claim 1, it is characterised in that: described printing layer (6) information
For the combination of one or more of one-dimension code, two dimensional code or variable graphic.
4. On-Screen Identification liquid crystal anti-counterfeiting mark according to claim 1, it is characterised in that: the substrate layer (7) uses
Anti- transfer substrate.
5. On-Screen Identification liquid crystal anti-counterfeiting mark according to claim 1, it is characterised in that: under the pressure-sensitive adhesive layer (8)
Side is provided with off-style paper layer (9).
6. On-Screen Identification liquid crystal anti-counterfeiting mark according to claim 1, it is characterised in that: the plastic film layer (1) and color
Separation layer (10) are provided between layer (2).
7. a kind of preparation method of any On-Screen Identification liquid crystal anti-counterfeiting mark of claim 1-6, it is characterised in that: including
Following steps:
1) chromatograph (2) are printed in the one side of plastic film layer (1)；
2) it is coated with, is orientated on chromatograph (2), formed oriented layer (3)；
3) it is coated with one layer of liquid crystal polymer coating on oriented layer (3), by solidification, is formed liquid crystal layer (4)；
4) substrate layer (7) forms printing layer (6) by printing；
5) printing layer (6) is combined with each other with liquid crystal layer (4) using adhesive, is coated with pressure in the non-printed side of substrate layer (7)
Quick glue, it is die cut, obtain anti-counterfeiting mark.
8. preparation method according to claim 7, it is characterised in that: be coated with after separation layer (10) again on plastic film layer (1)
It prints chromatograph (2)；The separation layer (10) is coated using ACMOS 101-5017.
9. preparation method according to claim 7, it is characterised in that: the oriented layer (3) by mixed liquid crystal, photosensitive take
It is coated with after being dissolved into solvent to agent, ultraviolet inhibitor and initiator,
By mass percentage, the sum of dosage of mixed liquid crystal, photosensitive orientants, ultraviolet inhibitor and initiator is 100%,
The mixed liquid crystal is RM257, C6M and LC242 with the mixture of any ratio, and structural formula difference is as follows:
The photosensitive orientants are polyvinyl alcohol and cinnamate with the mixture of any ratio；
The ultraviolet inhibitor is gaultherolin；
The initiator is one or two kinds of mixture of Irgacure907 or Irgacure784；
The solvent is one of methylene chloride or acetone；
When prepared by oriented layer (3),
Mixed liquid crystal, photosensitive orientants, ultraviolet inhibitor and initiator are dissolved into solvent first, solid content is made in stirring
For the coating of 20-30%, coating is coated on chromatograph (2), the letter of linear polarization ultraviolet light write-in different directions is used after drying
Breath, then carries out being solidified into oriented layer (3) under uv lamps.
10. preparation method according to claim 7, it is characterised in that: the liquid crystal polymer coating is by following weight
The raw material of percentage is made:
Wherein,
The structural formula of compound A are as follows:
The structural formula of compound B are as follows:
The structural formula of compound C are as follows:
Initiator A is TPO；
Initiator B is Irgacure819；
When prepared by liquid crystal layer (4), initiator is added into compound A, compound B and compound C, is heated to 50-65 DEG C, stirring
Uniformly, be coated in oriented layer, be formed by curing liquid crystal layer (4) through UV, the liquid crystal layer (4) with a thickness of 0.5-2g/m2。
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101925471A (en) * | 2008-01-22 | 2010-12-22 | 日本发条株式会社 | Identification medium and producing method thereof |
| CN103460267A (en) * | 2011-04-01 | 2013-12-18 | 日本发条株式会社 | Distinguishing medium |
| CN107300734A (en) * | 2017-06-09 | 2017-10-27 | 先尼科化工（上海）有限公司 | Optical anti-counterfeiting film apparatus |
| CN207115851U (en) * | 2017-06-09 | 2018-03-16 | 上海先幻新材料科技有限公司 | A kind of optical element |
| CN209879999U (en) * | 2019-06-26 | 2019-12-31 | 山东泰宝防伪技术产品有限公司 | Screen identification liquid crystal anti-counterfeiting mark |
-
2019
- 2019-06-26 CN CN201910559341.5A patent/CN110136565A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101925471A (en) * | 2008-01-22 | 2010-12-22 | 日本发条株式会社 | Identification medium and producing method thereof |
| CN103460267A (en) * | 2011-04-01 | 2013-12-18 | 日本发条株式会社 | Distinguishing medium |
| CN107300734A (en) * | 2017-06-09 | 2017-10-27 | 先尼科化工（上海）有限公司 | Optical anti-counterfeiting film apparatus |
| CN207115851U (en) * | 2017-06-09 | 2018-03-16 | 上海先幻新材料科技有限公司 | A kind of optical element |
| CN209879999U (en) * | 2019-06-26 | 2019-12-31 | 山东泰宝防伪技术产品有限公司 | Screen identification liquid crystal anti-counterfeiting mark |
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