CN113706998B - Uncovered hidden random characteristic anti-counterfeiting mark and preparation method thereof - Google Patents
Uncovered hidden random characteristic anti-counterfeiting mark and preparation method thereof Download PDFInfo
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- 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
- G09F3/0297—Forms or constructions including a machine-readable marking, e.g. a bar code
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/06009—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking
- G06K19/06037—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking multi-dimensional coding
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- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/06009—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking
- G06K19/06046—Constructional details
- G06K19/06103—Constructional details the marking being embedded in a human recognizable image, e.g. a company logo with an embedded two-dimensional code
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- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
- G06K7/10821—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices
- G06K7/10861—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices sensing of data fields affixed to objects or articles, e.g. coded labels
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- G06Q30/00—Commerce
- G06Q30/018—Certifying business or products
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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
- G09F3/03—Forms or constructions of security seals
- G09F3/0394—Forms or constructions of security seals with violation indication by generating a random number
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Abstract
The invention relates to an anti-counterfeiting mark, in particular to an uncovered hidden random characteristic anti-counterfeiting mark and a preparation method thereof. The mark comprises a first printing layer, a substrate layer, a release layer, a second printing layer, a random characteristic layer, a color ink layer and an adhesive layer which are sequentially arranged from top to bottom, wherein the random characteristic layer is a gloss oil layer embedded with characteristic particles, and the substrate layer is an opaque substrate; the anti-counterfeiting mark can be uncovered and is divided into a stripping part and a reserved bottom part, wherein the stripping part sequentially comprises a first printing layer and a substrate layer from top to bottom, and the reserved bottom part sequentially comprises a release layer, a second printing layer, a random characteristic layer, a color ink layer and an adhesive layer from top to bottom; at least one of the first printing layer and the second printing layer contains variable information, the variable information and the random characteristic layer information have a corresponding relation, and the image information of the second printing layer and the random characteristic layer can be generated by reading the variable information. Before the invention is uncovered and verified, the random characteristics are invisible, and the anti-counterfeiting force is high.
Description
Technical Field
The invention relates to an anti-counterfeiting mark, in particular to an uncovered hidden random characteristic anti-counterfeiting mark and a preparation method thereof.
Background
Along with the progress of technology, anti-counterfeiting means are more advanced and more diversified. In order to prevent the products from being counterfeited, most of commodity manufacturers adopt anti-counterfeiting marks to prevent the produced commodities from being counterfeited.
The basic principle of the random texture anti-counterfeiting technology is that a producer utilizes random characteristic distribution of texture elements formed by a random process to judge whether a product is true or false by comparing and storing the random characteristics, so that the anti-counterfeiting purpose is achieved. The method can realize that the anti-counterfeiting characteristic of each mark is unique because of the uncertainty of random characteristics, so that the anti-counterfeiting mode is widely applied since the occurrence of the anti-counterfeiting mode, and the anti-counterfeiting force is further improved in the use process.
Chinese patent CN 107154213A discloses an intelligent random feature recognition anti-counterfeit mark and a method for preparing the same. The mark comprises a heat shrinkage film layer, a bonding layer, an ink protection layer, a printing layer, a transfer adhesive layer, a water-soluble film layer, a fragile film layer, a pressure-sensitive adhesive layer and a silicone oil paper layer which are sequentially arranged from top to bottom, wherein a plurality of holes are randomly distributed on the water-soluble film layer, and anti-counterfeiting sheets are embedded in the holes; the anti-counterfeiting mark can be torn and is divided into a stripping part and a bottom-reserved part, wherein the stripping part comprises a heat shrinkage film layer, a bonding layer, an ink protection layer, a printing layer, a transfer adhesive layer and a water-soluble film layer from top to bottom in sequence; the bottom part is sequentially provided with an anti-counterfeiting sheet, a fragile film layer, a pressure-sensitive adhesive layer and a silicone oil paper layer from top to bottom. The water-soluble film adopted by the invention is soluble when meeting water, has the characteristics of anti-counterfeiting, release and environmental protection, can effectively prevent secondary transfer, and has multiple anti-counterfeiting effects, simple identification and good anti-counterfeiting effect.
Chinese patent CN 108682288A discloses a tamper-proof mark with multiple verification random features and a method for preparing the same. The mark comprises a prompting image-text layer, a covering layer, a plastic film layer, an uncovering layer, a resin layer, a printing layer, an adhesive layer and a color layer which are sequentially arranged from top to bottom, wherein anti-counterfeiting particles are embedded in the adhesive layer; the anti-counterfeiting mark can be uncovered and is divided into a stripping part and a bottom-reserved part, wherein the stripping part is sequentially provided with a prompting image-text layer, a covering layer and a plastic film layer from top to bottom; the bottom-reserving part is sequentially provided with a uncovering layer, a resin layer, a printing layer, an adhesive layer and a color layer from top to bottom. The anti-counterfeiting particles are randomly distributed in the label, are partially hidden and are not easy to imitate; the transfer cannot be completed, and the transfer prevention performance is good; simple identification and good anti-counterfeiting effect.
However, there is a problem with the above identification: the random characteristics (anti-counterfeiting sheets, anti-counterfeiting particles and the like) of the mark are not covered or hidden, the surface layer is visible, after the random characteristic information is acquired in a photographing or high-power scanning mode, the random characteristic information is printed on the mark in a printing mode, the mark can be similar to the visual effect of the mark, and if the mark is not carefully compared, consumers can hardly find the difference, part of consumers can be misled, and loss is brought to the consumers.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to solve the technical problems that: the anti-counterfeiting mark with the uncovered hidden random features is provided, the random features are invisible before the verification is carried out by the uncovering, the random features of the mark can be prevented from being forged by scanning or photographing, and the anti-counterfeiting strength of the mark is improved; the invention also provides a preparation method thereof, which is scientific, reasonable, simple and easy to implement.
The invention discloses an uncovered hidden random characteristic anti-counterfeiting mark, which comprises a first printing layer, a substrate layer, a release layer, a second printing layer, a random characteristic layer, a color ink layer and an adhesive layer which are sequentially arranged from top to bottom, wherein the random characteristic layer is a gloss oil layer with characteristic particles embedded in the random characteristic layer, and the substrate layer adopts a non-light-transmitting substrate;
the anti-counterfeiting mark can be uncovered and is divided into a stripping part and a reserved bottom part, wherein the stripping part sequentially comprises a first printing layer and a substrate layer from top to bottom, and the reserved bottom part sequentially comprises a release layer, a second printing layer, a random characteristic layer, a color ink layer and an adhesive layer from top to bottom;
at least one of the first printing layer and the second printing layer contains variable information, the variable information and the random characteristic layer information have a corresponding relation, and the image information of the second printing layer and the random characteristic layer can be generated by reading the variable information.
The invention can preferably adopt the following three schemes:
first, establish the two-dimensional code on first printing layer, establish the picture and text on the second printing layer. And reading the two-dimensional code on the first printing layer, and then uncovering the image information of the identification comparison second printing layer and the random characteristic layer to verify authenticity. The graphics on the second printed layer, in addition to its own information, also has the effect of assisting in determining the location of the characteristic particles. At this time, the random feature layer may be full or partial.
And secondly, graphic information is arranged on the first printing layer, and a two-dimensional code is arranged on the second printing layer. And uncovering the mark, reading the two-dimensional code on the second printing layer, comparing the image information of the second printing layer and the random characteristic layer, and verifying authenticity. In this case, in order to prevent the characteristic particles from affecting the acquisition and reading of the two-dimensional code information, it is preferable to locally position and coat the random characteristic layer below the second printing layer, and to avoid the two-dimensional code region during positioning and coating.
Thirdly, a two-dimensional code A is arranged on the first printing layer, an image-text and a two-dimensional code B are arranged on the second printing layer, and a corresponding relation exists between the two-dimensional code A and the two-dimensional code B. During the preparation, the collected picture characteristic information is stored in a logic corresponding relation of the two-dimensional code A through collecting the surface two-dimensional code A, the second printing layer information and the random characteristic layer image information, so that the collected picture characteristic information has a logic corresponding relation with the two-dimensional code B, during verification, the picture information cannot be called out through scanning the two-dimensional code A, the two-dimensional code B is scanned after the picture information is uncovered, the second printing layer information and the random characteristic layer image information can appear, and the comparison verification of authenticity can be carried out.
Wherein:
the opaque base material is one of coated paper, paperboard, coated paper, synthetic paper, white PE or white PP.
Preferably, the variable information includes a two-dimensional code, a one-dimensional code or a verification code.
The first printing layer information comprises at least one of characters or patterns.
The second printing layer information comprises at least one of characters or patterns.
Preferably, a local covering layer (silk-screen silver ink, silver scraping, etc.) is arranged above the first printing layer, and covers part or all of the variable information, such as the local two-dimensional code or all of the verification code. Further preferably, a prompting image-text layer is arranged above the local covering layer. The preparation methods of the local shielding layer and the prompting image-text layer are the same as those of the prior art, and are not main characteristics of the invention, and are not repeated here.
The purpose of setting up the look ink layer is as the backing colour, guarantees that the printing layer information of sign is not disturbed by the colour of being pasted the thing. Since the feature particles are solid and have a concave-convex feeling, the printing process is relatively special. When traditional ink is printed, an anilox roller is used for coating by a gravure press, so that a good effect is achieved on a sample with a relatively flat surface, but when the material with the uneven surface is printed, the periphery of the protruding part cannot be printed with the ink because of the lower position, only the place far away from the protruding part can be printed with the ink, no color layer is arranged on the periphery of particles to shade the pattern of the mark, and the color of the attached object influences the mark after the mark is attached, so that the influence of incapability of reading and unattractive pattern is easily caused.
The adhesive layer is a pressure-sensitive adhesive layer.
And a bottom paper layer, preferably silicone paper, is arranged below the adhesive layer.
The invention relates to a preparation method of an uncovered hidden random characteristic anti-counterfeiting mark, which comprises the following steps:
1) Coating the lower surface of the substrate layer to prepare a release layer;
2) Performing positive and negative corresponding printing on the upper and lower sides of the substrate layer coated with the release layer, wherein a first printing layer is arranged on the upper side of the substrate layer, a second printing layer is arranged on the lower side of the release layer, and at least one layer of the first printing layer and the second printing layer contains variable information;
3) Mixing the characteristic particles into gloss oil, and carrying out partial or full-page coating below the second printing layer to obtain a random characteristic layer;
4) The image information is converted into forward image information through collecting variable information, a second printing layer and random feature layer image information through operation, and the image information is stored in a server according to the logical corresponding relation of the variable information;
5) Coating color ink by adopting a reverse type matching coating mode of a coating machine to obtain a color ink layer;
6) The base paper is glued with the adhesive through the glue spreader and then is compounded with the color ink layer;
7) Die cutting to obtain the anti-counterfeiting mark.
Wherein:
in the step 3), the gloss oil is UV color onion gloss oil, and the model is: BUV-608, commercially available from Shandong Bullet ink Co., ltd. The coating mode is anilox roller coating, a scraper is not arranged during coating, the inking amount is controlled through the number and the proportion of anilox roller lines, and then the inking amount is transferred onto a printing layer through a resin plate, wherein the resin plate can be locally positioned or full plate. Anilox roll line number: 160-400 lines, preferably 360 lines; the mass ratio of gloss oil to characteristic particles is 100:20-60, preferably 100:54.
In the step 5), when the color ink is coated in a reverse consistent coating mode of a coater, the color ink is water-based white ink BWOT5001, the temperature of an oven is 80-105 ℃, the coating speed of equipment is 20-50m/min, and the coating speed is less than the speed of an inking roller.
In summary, the beneficial effects of the invention are as follows:
1. the anti-counterfeiting force is high. The random features are invisible before the uncovering is verified, so that the random features of the mark can be prevented from being forged by scanning or photographing.
2. The identification is simple. The mobile phone can be used for reading, the picture stored in the server can be called and displayed on the mobile phone by scanning the identification two-dimensional code, and authenticity can be identified by comparing the image information.
3. The preparation method of the invention is scientific, reasonable, simple and easy to implement.
Drawings
FIG. 1 is a schematic layer structure of the uncovered hidden random feature security device of example 1;
FIG. 2 is a schematic layer structure of the uncovered hidden random feature security device of example 2;
in the figure: 1. a first printed layer; 2. a substrate layer; 3. a release layer; 4. a second printed layer; 5. a gloss oil layer; 5.1, characteristic particles; 6. a color ink layer; 7. an adhesive layer; 8. a base paper layer; 9. a local masking layer; 10. and prompting the image-text 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 uncovered hidden random characteristic anti-counterfeiting mark comprises a first printing layer 1, a substrate layer 2, a release layer 3, a second printing layer 4, a random characteristic layer, a color ink layer 6 and an adhesive layer 7 which are sequentially arranged from top to bottom, wherein the random characteristic layer is a gloss oil layer 5 with characteristic particles 5.1 embedded therein, and the substrate layer 2 is coated paper;
the anti-counterfeiting mark can be uncovered and is divided into a stripping part and a reserved bottom part, wherein the stripping part sequentially comprises a first printing layer 1 and a substrate layer 2 from top to bottom, and the reserved bottom part sequentially comprises a release layer 3, a second printing layer 4, a random characteristic layer, a color ink layer 6 and an adhesive layer 7 from top to bottom;
the first printing layer 1 information is graphic information.
The second printed layer 4 information contains variable information, which is a two-dimensional code.
The preparation method comprises the following specific steps:
1) Coating the lower surface of the substrate layer 2 to prepare a release layer 3;
2) The positive and negative corresponding printing is carried out on the upper and lower sides of the substrate layer 2 coated with the release layer 3, a first printing layer 1 is arranged on the upper side of the substrate layer 2, and a second printing layer 4 is arranged on the lower side of the release layer 3;
3) Mixing the characteristic particles 5.1 into gloss oil, and performing full-page coating below the second printing layer 4 to obtain a random characteristic layer;
4) The image information is converted into forward image information through collecting variable information, the second printing layer 4 and random feature layer image information through operation, and the image information is stored in a server according to the logical corresponding relation of the variable information;
5) Coating color ink by adopting a reverse type matching coating mode of a coating machine to obtain a color ink layer 6;
6) The base paper is glued with adhesive through a glue spreader and then is compounded with the color ink layer 6;
7) Die cutting to obtain the anti-counterfeiting mark.
In the step 3), the gloss oil is UV color onion gloss oil (model BUV-608). The coating mode is anilox roller coating, a scraper is not arranged during coating, the inking amount is controlled through the number and the proportion of anilox roller lines, and then the inking amount is transferred onto a printing layer through a resin plate, wherein the resin plate is full. Anilox roll line number: 360 lines; the mass ratio of gloss oil to characteristic particles is 100:54.
In the step 5), when the color ink is coated in a reverse consistent coating mode of a coater, the color ink is water-based white ink BWOT5001, the temperature of an oven is 80 ℃, the coating speed of equipment is 50m/min, and the coating speed is less than the speed of an inking roller.
Example 2
As shown in fig. 2, the uncovered hidden random characteristic anti-counterfeiting mark comprises a first printing layer 1, a substrate layer 2, a release layer 3, a second printing layer 4, a random characteristic layer, a color ink layer 6 and an adhesive layer 7 which are sequentially arranged from top to bottom, wherein the random characteristic layer is a gloss oil layer 5 with characteristic particles 5.1 embedded therein, and the substrate layer 2 adopts paperboard;
the anti-counterfeiting mark can be uncovered and is divided into a stripping part and a reserved bottom part, wherein the stripping part sequentially comprises a first printing layer 1 and a substrate layer 2 from top to bottom, and the reserved bottom part sequentially comprises a release layer 3, a second printing layer 4, a random characteristic layer, a color ink layer 6 and an adhesive layer 7 from top to bottom;
the first printing layer 1 information contains variable information, which is a two-dimensional code.
A local covering layer 9 is arranged above the first printing layer 1, covers part of the two-dimensional code, prompts to uncover and then performs reading. A prompting image-text layer 10 is arranged above the partial covering layer 9.
The information of the second printing layer 4 is graphic information.
The preparation method comprises the following specific steps:
1) Coating the lower surface of the substrate layer 2 to prepare a release layer 3;
2) The positive and negative corresponding printing is carried out on the upper and lower sides of the substrate layer 2 coated with the release layer 3, a first printing layer 1 is arranged on the upper side of the substrate layer 2, and a second printing layer 4 is arranged on the lower side of the release layer 3;
3) Mixing the characteristic particles 5.1 into gloss oil, and performing full-page coating below the second printing layer 4 to obtain a random characteristic layer;
4) The image information is converted into forward image information through collecting variable information, the second printing layer 4 and random feature layer image information through operation, and the image information is stored in a server according to the logical corresponding relation of the variable information;
5) Coating color ink by adopting a reverse type matching coating mode of a coating machine to obtain a color ink layer 6;
6) The base paper is glued with adhesive through a glue spreader and then is compounded with the color ink layer 6;
7) Positioning and coating a local covering layer 9 above the first printing layer 1, and locally printing a prompting image-text layer 10 above the local covering layer 9;
8) Die cutting to obtain the anti-counterfeiting mark.
In the step 3), the gloss oil is UV color onion gloss oil (model BUV-608). The coating mode is anilox roller coating, a scraper is not arranged during coating, the inking amount is controlled through the number and the proportion of anilox roller lines, and then the inking amount is transferred onto a printing layer through a resin plate, wherein the resin plate is full. Anilox roll line number: 160 lines; the mass ratio of the gloss oil to the characteristic particles is 100:20.
In the step 5), when the color ink is coated in a reverse consistent coating mode of a coater, the color ink is water-based white ink BWOT5001, the temperature of an oven is 80 ℃, the coating speed of equipment is 50m/min, and the coating speed is less than the speed of an inking roller.
Claims (5)
1. A preparation method of an uncovered hidden random characteristic anti-counterfeiting mark is characterized by comprising the following steps of: the uncovered hidden random characteristic anti-counterfeiting mark comprises a first printing layer (1), a substrate layer (2), a release layer (3), a second printing layer (4), a random characteristic layer, a color ink layer (6) and an adhesive layer (7) which are sequentially arranged from top to bottom, wherein the random characteristic layer is a gloss oil layer (5) with characteristic particles (5.1) embedded therein, and the substrate layer (2) adopts an opaque substrate;
the anti-counterfeiting mark can be uncovered and is divided into a stripping part and a reserved bottom part, wherein the stripping part sequentially comprises a first printing layer (1) and a substrate layer (2) from top to bottom, and the reserved bottom part sequentially comprises a release layer (3), a second printing layer (4), a random characteristic layer, a color ink layer (6) and an adhesive layer (7) from top to bottom;
a two-dimensional code A is arranged on the first printing layer (1), a picture and text and a two-dimensional code B are arranged on the second printing layer (4), and a corresponding relation exists between the two-dimensional code A and the two-dimensional code B; during preparation, the collected picture characteristic information is stored in a logic corresponding relation of the two-dimensional code A through collecting the surface two-dimensional code A, the second printing layer (4) information and the random characteristic layer image information, so that the collected picture characteristic information has a logic corresponding relation with the two-dimensional code B, during verification, the picture information cannot be called out through scanning the two-dimensional code A, after uncovering, the two-dimensional code B is scanned, the second printing layer (4) information and the random characteristic layer image information appear, and comparison verification is carried out;
the preparation method of the uncovered hidden random characteristic anti-counterfeiting mark comprises the following steps:
1) preparing a release layer (3) on the lower surface of the substrate layer (2) through coating;
2) The method comprises the steps of carrying out positive and negative corresponding printing on the upper side and the lower side of a substrate layer (2) coated with a release layer (3), wherein a first printing layer (1) is arranged above the substrate layer (2), a second printing layer (4) is arranged below the release layer (3), and at least one layer of the first printing layer (1) and the second printing layer (4) contains variable information;
3) Mixing characteristic particles (5.1) into gloss oil, and carrying out partial or full-page coating below the second printing layer (4) to obtain a random characteristic layer;
4) The image information is converted into forward image information through collecting variable information, a second printing layer (4) and random feature layer image information through operation, and the image information is stored in a server according to the logical corresponding relation of the variable information;
5) Coating color ink by adopting a reverse type matching coating mode of a coating machine to obtain a color ink layer (6);
6) The base paper is glued with adhesive through a glue spreader and then is compounded with the color ink layer (6);
7) Die cutting to obtain an anti-counterfeiting mark;
in the step 3), the gloss oil is UV color onion gloss oil, the coating mode is anilox roller coating, a scraper is not arranged during coating, the inking amount is controlled through the number and the proportion of anilox roller lines, and then the gloss oil is transferred to a printing layer through a resin plate, wherein the resin plate can be locally positioned or full; anilox roll line number: 160-400 lines, and the mass ratio of the gloss oil to the characteristic particles is 100:20-60.
2. The method for preparing the uncovered hidden random feature anti-counterfeiting mark according to claim 1, wherein the method comprises the following steps of: the opaque base material is one of coated paper, paperboard, coated paper, synthetic paper, white PE or white PP.
3. The method for preparing the uncovered hidden random feature anti-counterfeiting mark according to claim 1, wherein the method comprises the following steps of: a local covering layer (9) is arranged above the first printing layer (1) and covers part or all of the variable information.
4. The method for preparing the uncovered hidden random feature anti-counterfeiting mark according to claim 3, wherein the method comprises the following steps of: a prompting image-text layer (10) is arranged above the local covering layer (9).
5. The method for preparing the uncovered hidden random feature anti-counterfeiting mark according to claim 1, wherein the method comprises the following steps of: and a bottom paper layer (8) is arranged below the adhesive layer (7).
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| CN202111002299.0A CN113706998B (en) | 2021-08-30 | 2021-08-30 | Uncovered hidden random characteristic anti-counterfeiting mark and preparation method thereof |
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| CN202111002299.0A CN113706998B (en) | 2021-08-30 | 2021-08-30 | Uncovered hidden random characteristic anti-counterfeiting mark and preparation method thereof |
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| CN108682288A (en) * | 2018-08-02 | 2018-10-19 | 山东泰宝防伪技术产品有限公司 | Open multiple authentication random character anti-counterfeiting mark and preparation method thereof |
| CN110084328B (en) * | 2019-04-30 | 2023-03-10 | 广东依明机械科技有限公司 | Packaging material's anti-fake two-dimensional code printing apparatus of only texture |
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| CN211455117U (en) * | 2020-03-25 | 2020-09-08 | 山东泰宝信息科技集团有限公司 | Holographic thermoprint characteristic identification false proof mark |
| CN111243424A (en) * | 2020-03-25 | 2020-06-05 | 山东泰宝防伪技术产品有限公司 | Characteristic identification anti-counterfeiting mark and preparation method thereof |
| CN112201145A (en) * | 2020-10-31 | 2021-01-08 | 山东泰宝信息科技集团有限公司 | Uncovering and scraping double-effect magic particle feature recognition anti-counterfeiting mark and preparation method thereof |
| CN113299179A (en) * | 2021-05-25 | 2021-08-24 | 山东泰宝信息科技集团有限公司 | Printed holographic uncovering informatization anti-counterfeit label and preparation method thereof |
| CN113306255B (en) * | 2021-06-11 | 2022-06-07 | 山东泰宝信息科技集团有限公司 | Image comparison physical foaming gasket and preparation method thereof |
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