CN113299180A - Magnetic optically-variable anti-counterfeiting holographic anti-counterfeiting label and preparation method thereof - Google Patents
Magnetic optically-variable anti-counterfeiting holographic anti-counterfeiting label and preparation method thereof Download PDFInfo
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- 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
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- 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
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Abstract
The invention relates to an anti-counterfeiting label, in particular to a magnetic optically-variable anti-counterfeiting holographic anti-counterfeiting label and a preparation method thereof. The magnetic light-variable anti-counterfeiting holographic anti-counterfeiting label comprises a magnetic light-variable anti-counterfeiting layer, a protective layer, a printing layer, a plastic film layer, a laser aluminizing coating, a mould pressing information layer, an aluminizing layer and a glue layer which are sequentially arranged from top to bottom; the magnetic light-variable anti-counterfeiting layer is printed by magnetic ink, and a field depth dynamic light-variable effect is formed by fixed magnetism and light curing. The anti-counterfeiting label has the advantages of gorgeous color, unique light variation effect, more anti-counterfeiting information, multiple anti-counterfeiting functions, simple identification, high imitation difficulty, good anti-counterfeiting effect and difficulty in secondary transfer use; the preparation method is scientific, reasonable, simple and feasible.
Description
Technical Field
The invention relates to an anti-counterfeiting label, in particular to a magnetic optically-variable anti-counterfeiting holographic anti-counterfeiting label and a preparation method thereof.
Background
With the continuous development of economy, the number of counterfeit products is continuously increased, so that the anti-counterfeiting of the products is more and more important, and in the current commercial field, enterprises usually attach anti-counterfeiting labels to the products of the enterprises to prevent counterfeiting in order to avoid the counterfeiting of commodities.
Chinese patent CN 211787899U discloses a 3D optically variable effect holographic anti-counterfeit label, which comprises a 3D optically variable effect layer, a first plastic film layer, a first glue layer, a printing layer, a second plastic film layer, a release layer, a mold pressing information layer, an aluminum plating layer and a second glue layer, which are sequentially arranged from top to bottom, wherein the 3D optically variable effect layer is printed by using magnetic ink, and a 3D optically variable effect is formed by fixing magnetism; the label can be uncovered, divide into and peel off the part and leave the end part, when uncovering, is destroyed by local from the type layer, leaves end, from type layer, mould pressing information layer, aluminize layer and second glue layer part and leaves the end. The label combines the holographic anti-counterfeiting technology with the optically variable ink, so that the anti-counterfeiting performance and the attractiveness of the anti-counterfeiting label are greatly improved. However, the optical variable effect of the label is only formed by fixed magnetism, the optical variable form is relatively single, with the development of science and technology, some lawless persons begin to try to forge the label, and further improvement of the anti-counterfeiting strength and the counterfeiting difficulty of the label become a technical problem to be solved urgently. In addition, the mould pressing information layer of the label only can present single silver color, and cannot present colorful effect.
Disclosure of Invention
Aiming at the defects of the prior art, the technical problems to be solved by the invention are as follows: the magnetic optically-variable anti-counterfeiting holographic anti-counterfeiting label has the advantages of bright color, unique optically-variable effect, multiple anti-counterfeiting information, simple identification, high counterfeiting difficulty, good anti-counterfeiting effect and difficulty in secondary transfer use; the invention also provides a preparation method of the composition, which is scientific, reasonable, simple and feasible.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the magnetic light-variable anti-counterfeiting holographic anti-counterfeiting label comprises a magnetic light-variable anti-counterfeiting layer, a protective layer, a printing layer, a plastic film layer, a laser aluminizing coating, a mould pressing information layer, an aluminizing layer and a glue layer which are sequentially arranged from top to bottom;
the magnetic light-variable anti-counterfeiting layer is printed by magnetic ink, and a field depth dynamic light-variable effect is formed by fixed magnetism and light curing.
Wherein:
the magnetic optically variable anti-counterfeiting layer is printed by adopting magnetic ink doped with invisible anti-counterfeiting ink, and the invisible anti-counterfeiting ink is light spot display ink or voice ink. If the ink is doped with voice ink, the function of voice recognition and reading can be realized; the light spot display ink is doped, and bright visible light can be displayed by using special equipment.
The magnetic light variation anti-counterfeiting layer has a field depth dynamic light variation effect. The dynamic changing effect can be observed by rotating the label or changing the sight line, and the effect is changed along with the change of the moving position or the sight line. Such as dynamic three-dimensional light column effect, three-dimensional spherical dynamic change effect, etc.
Preferably, the magnetic optically variable anti-counterfeiting layer is divided into an image-text area and an optically variable area. The image-text area and the optical variable area are formed by fixed magnetism and light solidification, and the fixed magnetism and light solidification times can be one time or multiple times. For example, after printing the optically variable ink, the magnetism is not fixed, the image-text area is irradiated by UV-LED parallel light to be solidified, other areas are not solidified, and the pigment in the uncured magnetic ink is subjected to orientation distribution by using a magnet to form a magnetic dynamic optically variable effect area.
The protective layer is a pre-coated film protective layer or a UV gloss oil protective layer, preferably a UV gloss oil protective layer, and has good adhesive force with the printing layer, and the magnetic light-variable anti-counterfeiting layer has strong adhesive force with the magnetic light-variable anti-counterfeiting layer. The UV gloss oil protective layer is coated by printable UV gloss oil LC-2661-P, wherein LC-2661-P is a product sold by Beijing green Changxing science and technology company Limited. Coating by using a 300-500 mesh screen roller and curing by using a UV lamp.
The printing layer contains pictures and texts or variable information (traceability or anti-counterfeiting effect can be realized). Preferably, the printing ink mixed with transparent ink is adopted for printing, and the multicolor laser effect is formed by overlapping the holographic aluminized laser effect. Wherein, the transparent ink is conventional digital ink or flexographic ink.
The laser aluminizing coating is a permanent laser aluminizing coating or a transfer laser aluminizing coating. Wherein: the permanent laser aluminized coating is adopted, so that the label cannot be uncovered; by adopting the transfer laser aluminizing coating, the label can be uncovered and divided into a peeling part and a bottom-remaining part, and when the label is uncovered, the laser aluminizing coating and the parts below the laser aluminizing coating are left at the bottom.
The permanent laser aluminized coating is coated by using a laser aluminizing paint, and the laser aluminizing paint is preferably FL-7104B type composite laser aluminizing paint which is purchased from Shanghai Weikai chemical products, Inc. The coating process comprises the following steps: coating by using a 150-mesh and 250-mesh electric carving roller, preferably 180-mesh; drying temperature: 90-120-180-140 ℃, vehicle speed: 50-80 m/min.
The laser transfer aluminum-plating coating adopted by the laser transfer aluminum-plating coating is BH-1001C type laser transfer aluminum-plating coating. The coating process comprises the following steps: coating by using a 150-mesh and 250-mesh electric carving roller, preferably 180-mesh; drying temperature: 90-120-180-140 ℃, vehicle speed: 50-80 m/min.
Preferably, the laser aluminized coating is coated by a laser aluminizing coating containing metal complex dye, and a colorful holographic laser effect rather than a single silver holographic laser effect can be formed after mould pressing.
The anti-counterfeiting information of the mould pressing information layer and the aluminum coating layer comprises one or more of a point light source encryption effect, an image true color technology, a laser encryption technology, a metal embossment effect, a holographic lens effect or a color Fresnel effect. The anti-counterfeiting information can be seen after the die pressing aluminum washing process.
Point light source encryption technology: under a common light source, a fuzzy white color can be seen, contents can not be seen, if the light source is used for illumination, hidden information can be seen, and the light source is shaken, so that the contents are shaken along with the light source in a circular track.
Image true color technology: dividing each pixel of the source image into R, G, B three primary color components, and using color coding technology, producing a hologram with similar color photograph effect.
The laser encryption technology comprises the following steps: the optical information technology is used to store text or image information at a point or in a region on the hologram. Under normal observation, the information does not appear; when irradiated with a laser beam, the stored information can be presented.
Metal relief: the hologram can truly reflect the convex, concave and vivid three-dimensional image, has metallic luster, is the basis of holographic anti-counterfeiting technology, and has the highest anti-counterfeiting value.
A holographic lens: the observation of the holographic lens can see that the bright spot shakes along with the change of the observation angle, and the position of the bright spot is sensed to float out of the surface of the product.
The glue layer plays a role of being stuck to an object to be stuck.
The release paper layer is arranged below the glue layer, so that the effect of facilitating a customer to easily pick a label when the customer is stuck to a stuck object is achieved.
The invention relates to a preparation method of a magnetic optically variable anti-counterfeiting holographic anti-counterfeiting label, which comprises the following steps:
1) coating a laser aluminizing coating below the plastic film layer;
2) after coating, local positioning mould pressing is carried out by adopting a mould pressing and printing integrated machine to form a mould pressing information layer;
3) performing full-plate aluminum plating by using a vacuum aluminum plating technology to form an aluminum plating layer;
4) spreading glue below the aluminized layer and compounding the aluminized layer with release paper;
5) printing on the plastic film layer to form a printing layer;
6) coating above the printing layer to form a protective layer;
7) printing magnetic ink on the protective layer through a screen printer, performing local UV curing to form an image-text area, and performing fixed magnetism and overall UV curing on the magnetic ink printing area to form an optical variable area.
And 7), the fixed magnet adopts a fixed magnet device as a magnetic block, the fixed magnet device is fixed on a screen printing head of the screen printing machine and can move up and down along with the step movement rule of the equipment, and the UV lamp is turned on and off along with the step movement rule of the equipment.
Preferably, in step 7), after the magnetic ink is printed, the magnet 1 is used for fixing magnetism, after the magnetic ink reaches the light position of the UV-LED, the UV-LED parallel light is used for starting irradiation in the image-text area (1.1), the irradiation time is 1.5-2s, so that the image-text area (1.1) is cured, other areas are not cured, after the UV-LED lamp is turned off, the magnetic ink moves to reach the magnetism fixing area, the magnet 2 is used for performing orientation distribution on pigments in the uncured magnetic ink, and after the UV light is cured, a magnetic dynamic light effect area, namely a light change area (1.2), is formed, wherein the magnet 1 and the magnet 2 generate different magnetic fields.
The magnetic ink contains optical color-changing magnetic pigment flakes, a magnetic field is formed in a fixed magnetic device area, when the magnetic ink passes through the area, the optical color-changing magnetic pigment flakes form orientation alignment under the action of the magnetic field, and an optical change area with a depth of field dynamic optical change effect is formed after UV curing.
When the consumer identifies the authenticity:
1. visual identification: and the dynamic light variation effect judgment of the magnetic ink is observed from different angles by rotating the label for distinguishing.
2. Magnetic ink + voice ink protocol: the method uses a voice pen to detect the optically variable ink (namely, the magnetic ink and the voice ink), and the authenticity is identified through voice broadcasting results.
3. Magnetic ink + smart spot ink scheme: the special instrument is used for identifying the optically variable printing ink, and bright visible light can be displayed in the optically variable printing ink area.
4. And inquiring and distinguishing by reading the variable information of the printing layer.
5. The scheme of local UV curing is firstly carried out, then the fixed magnetic effect is changed, then the whole UV curing scheme is carried out, the magnetic light-variable anti-counterfeiting layer is observed firstly, the image-text information part and other parts have different light-variable effects, and the dynamic light-variable effect judgment of the magnetic ink observed from different angles is carried out by rotating the label for distinguishing. For example, the image-text information is a two-dimensional code pattern, the two-dimensional code on the optically variable ink is scanned, and the authenticity is identified by using the variable information on the printing layer.
In conclusion, the beneficial effects of the invention are as follows:
1. the magnetic optically-variable anti-counterfeiting holographic anti-counterfeiting label is colorful, contains more anti-counterfeiting information, can realize multiple anti-counterfeiting, is simple to identify, is not easy to counterfeit and has a good anti-counterfeiting effect.
2. The invention sets various anti-counterfeiting technical means on the label, so that the label has more anti-counterfeiting information, a complex structure and high production technical threshold, is not easy to counterfeit successfully, increases the difficulty of counterfeiting and avoids being copied and applied in a large amount.
3. The label has the effect of dynamic light variation of field depth, is more attractive, cannot be copied by a high-definition scanner, a color copier and other equipment due to the color angle effect, and has good anti-counterfeiting reliability.
4. The invention provides a preparation method of a color holographic anti-counterfeiting label, which is characterized in that a laser aluminized coating is mixed with transparent ink, or the printing layer is printed with the transparent ink to prepare the color holographic anti-counterfeiting label.
5. The magnetic ink of the invention contains invisible anti-counterfeiting technologies, such as intelligent light spot technology, intelligent voice ink and the like. The magnetic light-variable anti-counterfeiting area containing light spot ink or voice ink is read by using a special reading instrument, and visible light or voice prompt verification passing and other functions can appear.
6. The invention realizes the functions of the image-text area and the optical variable area on the magnetic optical variable anti-counterfeiting layer, improves the anti-counterfeiting grade and greatly improves the counterfeiting difficulty.
7. The preparation method is scientific, reasonable, simple and feasible. Particularly, the color holographic anti-counterfeiting label is prepared by adopting a mode of blending transparent color ink, and has the advantages of simple operation, low cost and good color generation effect.
Drawings
Fig. 1 is a schematic layer structure diagram of a magnetic optically-variable anti-counterfeiting holographic anti-counterfeiting label according to embodiment 1 of the invention;
fig. 2 is a schematic layer structure diagram of a magnetic optically-variable anti-counterfeiting holographic anti-counterfeiting label according to embodiment 2 of the present invention;
in the figure: 1. a magnetic optically variable anti-counterfeiting layer; 1.1, an image-text area; 1.2, an optical variable area; 2. a protective layer; 3. printing layer; 4. a plastic film layer; 5. laser aluminizing coating; 6. molding the information layer; 7. plating an aluminum layer; 8. a glue layer; 9. and (7) a release paper layer.
Detailed Description
Embodiments of the present invention are further described below with reference to the accompanying drawings.
Example 1
As shown in fig. 1, the magnetic optically-variable anti-counterfeiting holographic anti-counterfeiting label comprises a magnetic optically-variable anti-counterfeiting layer 1, a protective layer 2, a printing layer 3, a plastic film layer 4, a laser aluminizing coating 5, a mold pressing information layer 6, an aluminizing layer 7 and a glue layer 8 which are sequentially arranged from top to bottom;
the magnetic light-variable anti-counterfeiting layer 1 is printed by magnetic ink, and a field depth dynamic light-variable effect is formed through fixed magnetism and light curing. The magnetic light-variable anti-counterfeiting layer 1 is printed by adopting magnetic ink doped with invisible anti-counterfeiting ink, and the invisible anti-counterfeiting ink is light spot display ink.
The protective layer 2 is a UV gloss oil protective layer.
The printed layer 3 contains variable information (two-dimensional code).
The laser aluminizing coating 5 is a permanent laser aluminizing coating, and a label cannot be uncovered.
The anti-counterfeiting information of the mould pressing information layer 6 and the aluminum plating layer 7 comprises a point light source encryption effect.
And a release paper layer 9 is arranged below the glue layer 8.
The preparation method comprises the following steps:
1) coating a laser aluminized coating 5 below the plastic film layer 4; the adopted coating formula is as follows: FL-7104B: butanone: propyl ester: YOLLOW 120: RED306 ═ 8 kg: 4 kg: 0.5 kg: 0.2 kg: 0.04 kg; YOLLOW120 and RED306 are commercially available products from taiwan public chemical corporation. Dissolving toner in butanone and propyl ester, stirring with FL-7104B for half an hour, filtering with a 200-mesh filter screen, coating with a 250-mesh electric carving roller, and drying at a temperature: 90-120-180-140 ℃, vehicle speed: 65m/min, and the proportion is permanent coating golden holographic effect.
2) After coating, local positioning mould pressing is carried out by adopting a mould pressing and printing integrated machine to form a mould pressing information layer 6;
3) performing full-plate aluminum plating by using a vacuum aluminum plating technology to form an aluminum plating layer 7;
4) spreading glue below the aluminized layer 7 and compounding with release paper;
5) printing on the plastic film layer 4 to form a printing layer 3;
6) coating above the printing layer 3 to form a protective layer 2; coating with printable UV gloss oil LC-2661-P, coating with 400 mesh screen roller, and curing with UV lamp.
7) And printing magnetic ink on the protective layer 2 through a screen printing machine, fixing magnetism, and performing UV curing to form the magnetic light variable anti-counterfeiting layer 1.
The step 7) is specifically as follows: magnetic ink is printed on the upper portion of the protection layer 2 through a screen printing machine, after square ferromagnetic magnetization, the whole UV curing of a magnetic ink printing area is formed after UV photocuring, and the magnetic optically-variable anti-counterfeiting layer 1 is formed. The anti-counterfeiting layer has the effect of a dynamic three-dimensional light beam, and the three-dimensional light beam moves along with the realization along with the change of an observation angle.
Example 2
As shown in fig. 2, the magnetic optically-variable anti-counterfeiting holographic anti-counterfeiting label comprises a magnetic optically-variable anti-counterfeiting layer 1, a protective layer 2, a printing layer 3, a plastic film layer 4, a laser aluminizing coating 5, a mold pressing information layer 6, an aluminizing layer 7 and a glue layer 8 which are sequentially arranged from top to bottom;
the magnetic light-variable anti-counterfeiting layer 1 is printed by magnetic ink, and a field depth dynamic light-variable effect is formed through fixed magnetism and light curing. The magnetic optically-variable anti-counterfeiting layer 1 is printed by adopting magnetic ink doped with invisible anti-counterfeiting ink, and the invisible anti-counterfeiting ink is voice ink. The magnetic light-variable anti-counterfeiting layer 1 is divided into an image-text area 1.1 and a light-variable area 1.2.
The protective layer 2 is a PET precoating film.
The printing layer 3 contains graphic and text information, is printed by adopting ink mixed with transparent color ink, and is overlapped with the holographic aluminizing laser effect to form a colorful laser effect.
The laser aluminizing coating 5 is a transfer laser aluminizing coating, the label can be uncovered and is divided into a stripping part and a bottom retaining part, and when the label is uncovered, the laser aluminizing coating 5 and the parts below the laser aluminizing coating are left.
The laser aluminized coating 5 is coated by ink mixed with transparent color ink, and can form colorful holographic laser effect after mould pressing.
The anti-counterfeiting information of the mould pressing information layer 6 and the aluminum coating layer 7 comprises a dynamic pixel effect and a silver sanding effect.
And a release paper layer 9 is arranged below the glue layer 8.
The preparation method comprises the following steps:
1) coating a laser aluminized coating 5 below the plastic film layer 4; the adopted coating formula is as follows: BH-1001C: butanone: propyl ester: RED306 ═ 8 kg: 3.5 kg: 1 kg: 0.12 kg. Dissolving toner in butanone and propyl ester, stirring with BH-1001C for half an hour, filtering with a 200-mesh filter screen, coating with a 250-mesh electric carving roller, and drying at a temperature: 90-120-180-140 ℃, vehicle speed: 65 m/min. The proportion is uncovering coating and red holographic effect.
2) After coating, local positioning mould pressing is carried out by adopting a mould pressing and printing integrated machine to form a mould pressing information layer 6;
3) performing full-plate aluminum plating by using a vacuum aluminum plating technology to form an aluminum plating layer 7;
4) spreading glue below the aluminized layer 7 and compounding with release paper;
5) printing on the plastic film layer 4 to form a printing layer 3;
6) compounding a PET precoating film above the printing layer 3 to form a protective layer 2;
7) magnetic ink is printed on the upper portion of the protective layer 2 through a screen printing machine, an image-text area 1.1 is formed through local UV curing, and an optical variable area 1.2 is formed through overall UV curing of a fixed-magnetism printing area and a magnetic ink printing area.
The step 7) is specifically as follows: after the magnetic ink is printed on the protective layer 2 through a screen printing machine, the magnetism is not fixed, after the magnetic ink reaches the UV-LED light position, the UV-LED parallel light is used for starting irradiation in the image-text area 1.1, the irradiation time is 2s, the image-text area 1.1 is cured, other areas are not cured, after the UV-LED lamp is turned off, the magnetic ink moves to the magnetism fixing area, the pigment in the uncured magnetic ink is subjected to orientation distribution through the annular magnet, and after the UV light is cured, a magnetic dynamic light variation effect area, namely a light variation area 1.2, is formed. The anti-counterfeiting layer has the effects that the image-text part and the dynamic three-dimensional spherical effect are formed on the anti-counterfeiting layer, the image-text part does not form the dynamic three-dimensional effect along with the change of the observation angle, and the three-dimensional spherical effect on other parts has the effect of dynamic movement along with the change of the observation angle.
Example 3
The structure and preparation method of the label are the same as those of example 2.
The difference lies in that: the step 7) is specifically as follows: after the magnetic ink is printed on the protective layer 2 through a screen printing machine, the bar magnet is used for fixing magnetism, after the magnetic ink reaches the UV-LED light position, the UV-LED parallel light is used for starting irradiation in the image-text area 1.1, the irradiation time is 2s, the image-text area 1.1 is cured, the fixed magnetic image-text area 1.1 has a dynamic three-dimensional light column effect, other areas are not cured, after the UV-LED lamp is turned off, the magnetic ink moves to the fixed magnetic area, the pigment in the uncured magnetic ink is subjected to orientation distribution through the annular magnet, and after UV light curing, a magnetic dynamic light variation effect area, namely a light variation area 1.2, is formed. The anti-counterfeiting layer has the effects that the image-text part and the dynamic three-dimensional spherical effect are formed on the anti-counterfeiting layer, the image-text part forms the dynamic three-dimensional light beam effect along with the change of the observation angle, and the other parts form the effect that the three-dimensional spherical effect dynamically moves along with the change of the observation angle.
Claims (10)
1. The utility model provides a holographic antifalsification label of magnetic light variation anti-fake effect which characterized in that: the anti-counterfeiting laser printing device comprises a magnetic light-variable anti-counterfeiting layer (1), a protective layer (2), a printing layer (3), a plastic film layer (4), a laser aluminizing coating (5), a mould pressing information layer (6), an aluminizing layer (7) and a glue layer (8) which are arranged from top to bottom in sequence;
the magnetic light-variable anti-counterfeiting layer (1) is printed by magnetic ink, and a field depth dynamic light-variable effect is formed through fixed magnetism and light curing.
2. The holographic anti-counterfeiting label with the magnetic optically variable anti-counterfeiting effect according to claim 1, characterized in that: the magnetic light-variable anti-counterfeiting layer (1) is printed by adopting magnetic ink doped with invisible anti-counterfeiting ink, and the invisible anti-counterfeiting ink is light spot display ink or voice ink.
3. The holographic anti-counterfeiting label with the magnetic optically variable anti-counterfeiting effect according to claim 1, characterized in that: the magnetic light-variable anti-counterfeiting layer (1) is divided into an image-text area (1.1) and a light-variable area (1.2).
4. The holographic anti-counterfeiting label with the magnetic optically variable anti-counterfeiting effect according to claim 1, characterized in that: the protective layer (2) is a precoating film protective layer or a UV gloss oil protective layer.
5. The holographic anti-counterfeiting label with the magnetic optically variable anti-counterfeiting effect according to claim 1, characterized in that: the printing layer (3) contains pictures and texts or variable information, is printed by adopting ink mixed with transparent color ink, and is overlapped with the holographic aluminizing laser effect to form a colorful laser effect.
6. The holographic anti-counterfeiting label with the magnetic optically variable anti-counterfeiting effect according to claim 1, characterized in that: the laser aluminizing coating (5) is a permanent laser aluminizing coating or a transfer laser aluminizing coating; wherein: the permanent laser aluminized coating is adopted, so that the label cannot be uncovered; by adopting the transfer laser aluminizing coating, the label can be uncovered and divided into a peeling part and a bottom-remaining part, and when the label is uncovered, the laser aluminizing coating (5) and the parts below the laser aluminizing coating are left.
7. The holographic anti-counterfeiting label with the magnetic optically variable anti-counterfeiting effect according to claim 1, characterized in that: the laser aluminizing coating (5) is coated by a laser aluminizing coating of metal complex dye, and a colorful holographic laser effect can be formed after mould pressing.
8. The holographic anti-counterfeiting label with the magnetic optically variable anti-counterfeiting effect according to claim 1, characterized in that: and a release paper layer (9) is arranged below the glue layer (8).
9. A method for preparing the magnetic optically variable anti-counterfeiting holographic anti-counterfeiting label with the anti-counterfeiting effect according to any one of claims 1 to 8, which is characterized by comprising the following steps: the method comprises the following steps:
1) coating a laser aluminizing coating (5) below the plastic film layer (4);
2) after coating, local positioning mould pressing is carried out by adopting a mould pressing and printing integrated machine to form a mould pressing information layer (6);
3) performing full-plate aluminum plating by using a vacuum aluminum plating technology to form an aluminum plating layer (7);
4) spreading glue below the aluminized layer (7) and compounding the aluminized layer with release paper;
5) printing on the plastic film layer (4) to form a printing layer (3);
6) coating the printing layer (3) to form a protective layer (2);
7) magnetic ink is printed on the upper portion of the protective layer (2) through a screen printing machine, an image-text area (1.1) is formed through local UV curing, and an optical variable area (1.2) is formed through overall UV curing of a fixed-magnetism and magnetic ink printing area.
10. The method for preparing the magnetic optically variable anti-counterfeiting holographic anti-counterfeiting label according to claim 9, which is characterized by comprising the following steps: in the step 7), after the magnetic ink is printed, the magnet 1 is used for fixing magnetism, after the magnetic ink reaches the light position of the UV-LED, the UV-LED parallel light is used for starting irradiation in the image-text area (1.1), the irradiation time is 1.5-2s, the image-text area (1.1) is cured, other areas are not cured, after the UV-LED lamp is turned off, the magnetic ink moves to the magnetism fixing area, the magnet 2 is used for enabling pigment in the uncured magnetic ink to be subjected to orientation distribution, and after the UV light is cured, a magnetic dynamic light effect changing area, namely a light changing area (1.2), is formed, wherein the magnet 1 and the magnet 2 generate different magnetic fields.
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