CN119516893A - Tear-off type anti-transfer anti-counterfeiting label and preparation method thereof - Google Patents
Tear-off type anti-transfer anti-counterfeiting label and preparation method thereof Download PDFInfo
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- CN119516893A CN119516893A CN202411315028.4A CN202411315028A CN119516893A CN 119516893 A CN119516893 A CN 119516893A CN 202411315028 A CN202411315028 A CN 202411315028A CN 119516893 A CN119516893 A CN 119516893A
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/02—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to macromolecular substances, e.g. rubber
- B05D7/04—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to macromolecular substances, e.g. rubber to surfaces of films or sheets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/02—Details of features involved during the holographic process; Replication of holograms without interference recording
- G03H1/0276—Replicating a master hologram without interference recording
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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
- 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
- G09F2003/0257—Multilayer
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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
- G09F2003/0276—Safety features, e.g. colour, prominent part, logo
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Abstract
The invention relates to an anti-counterfeiting mark, in particular to a tearing-open type anti-transfer anti-counterfeiting label and a preparation method thereof. The uncovering type anti-transfer anti-counterfeiting label comprises a first heat shrinkage film layer, a first pressure-sensitive adhesive layer, a first printing layer, a second heat shrinkage film layer, a second pressure-sensitive adhesive layer, an aluminum washing film layer, a third glue layer, a laser stealth layer, a local release coating, a second printing layer, a fourth glue layer, a transfer holographic rainbow aluminizing layer, a fifth glue layer, a substrate layer, a third pressure-sensitive adhesive layer and a release paper layer which are sequentially arranged from top to bottom. The tearing-open type anti-transfer anti-counterfeiting label has the advantages of strong anti-transfer performance, easiness in opening during use, high anti-counterfeiting grade, easiness in recognition, difficulty in lifting of the label, and scientific, reasonable, simple and easy preparation method.
Description
Technical Field
The invention relates to an anti-counterfeiting mark, in particular to a tearing-open type anti-transfer anti-counterfeiting label and a preparation method thereof.
Background
With the development of the society, the anti-counterfeiting of products is more and more important, customers are required to be different from one label to another, the attractiveness of the labels is required, the surface properties of the attached objects of the customers are various, and the attached objects with personalized shapes are used in a large quantity. At present, the uncovered anti-counterfeiting label is widely applied in the anti-counterfeiting label field, and has high anti-counterfeiting force, but the following problems exist in the use process, so that great inconvenience is brought to customers.
1) When the label is stuck on a curved surface or sealed at a right angle, the flatness of the label is poor, the tension is overlarge, and the phenomenon of warping is easy to generate.
2) Although the label can be uncovered and destroyed, the pressure sensitive adhesive is reduced after the label is heated, and the label can be transferred and used for the second time.
3) Many uncovering type labels have overlarge breaking force values, and the phenomena that the labels are difficult to uncover or the uncovering and hiding variable information are incomplete and the like can occur in the market, so that the reading of consumers is influenced.
How to prepare the tearing-open anti-transfer anti-counterfeiting label, and the hidden information with good anti-transfer performance is revealed to be a complete anti-counterfeiting label is a problem to be solved in the current stage.
The Chinese patent CN208027644U discloses a multilayer glue-free and glue-equipped combined special label, which comprises release paper and a label body adhered on the release paper, wherein the label body sequentially comprises a transparent film, a glue-free folding inner core and a bottom layer from outside to inside, the transparent film is adhered on the upper surface of the glue-free folding inner core, two ends of the transparent film extending out of the inner core are adhered on the bottom layer, the surface of the bottom layer, far away from the glue-free folding inner core, is coated with a glue layer, the bottom layer is adhered on the release paper through the glue layer, the width of the tail part of the label body and the width of the label body uncovering part are adjusted according to the number of layers of the glue-free folding inner core, so that the label can not be tilted on a curved surface, and the label body uncovering part is convenient to uncover and glue, and is more convenient to use.
However, although the label solves the problem that the label warps on the curved surface, the label body tail and the width of the label body uncovering part need to be strictly controlled, and the label is not beneficial to industrial popularization.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide the tearing-open type anti-transfer anti-counterfeiting label which is strong in anti-transfer performance, easy to open during use, high in anti-counterfeiting grade, easy to identify and difficult to warp, and the preparation method of the anti-counterfeiting label is scientific, reasonable, simple and easy to implement.
The invention discloses a tearing-open type anti-transfer anti-counterfeiting label which comprises a first heat shrinkage film layer, a first pressure-sensitive adhesive layer, a first printing layer, a second heat shrinkage film layer, a second pressure-sensitive adhesive layer, an aluminum washing film layer, a third glue layer, a laser stealth layer, a local release coating, a second printing layer, a fourth glue layer, a transfer holographic rainbow aluminizing layer, a fifth glue layer, a substrate layer, a third pressure-sensitive adhesive layer and a release paper layer which are sequentially arranged from top to bottom.
Wherein:
The anti-counterfeiting mark can be uncovered and is divided into a stripping part and a bottom-reserving part, wherein the stripping part sequentially comprises a first heat shrinkage film layer, a first pressure-sensitive adhesive layer, a first printing layer, a second heat shrinkage film layer, a second pressure-sensitive adhesive layer, an aluminum washing film layer, a third adhesive layer, a laser stealth layer and a second printing layer from top to bottom, and the bottom-reserving part sequentially comprises a local release coating, a second printing layer, a fourth adhesive layer, a transfer holographic rainbow aluminum plating layer, a fifth adhesive layer, a substrate layer, a third pressure-sensitive adhesive layer and a release paper layer from top to bottom.
The first heat-shrinkable film layer and the second heat-shrinkable film layer are one of PP, PE, PVC, POF and have a thickness of 10-50 μm, preferably 10-24 μm.
The first pressure-sensitive adhesive layer and the second pressure-sensitive adhesive layer are one of hot-melt pressure-sensitive adhesive, oily pressure-sensitive adhesive, aqueous pressure-sensitive adhesive and UV pressure-sensitive adhesive, and have a thickness of 3-15 μm. Preferably, the first pressure-sensitive adhesive layer and the second pressure-sensitive adhesive layer both use UV pressure-sensitive adhesives.
The third, fourth and fifth layers of adhesive are pressure sensitive or non-pressure sensitive adhesives, such as commercially available two-component pressure sensitive adhesives, and the like.
The first printed layer and the second printed layer contain variable information. Such as one-dimensional bar codes, two-dimensional codes, variable digital codes, etc.
The aluminum washing film layer comprises an unwashed aluminum area, and the unwashed aluminum area covers the variable information on the second printing layer and plays a role in covering the variable information.
The aluminum washing film layer comprises a holographic white area, and the holographic white area corresponds to the variable information position of the first printing layer. When the variable information of the first printing layer is a two-dimensional code or a one-dimensional bar code, the reading level can be effectively improved.
The substrate layer can be substrate such as fragile paper, plastic film, coated paper, etc., and is constituteed the non-setting adhesive layer by substrate layer, third pressure sensitive adhesive layer and release paper layer, can carry out the flower sword cross cutting to the substrate layer, improves and prevents transferring the effect, and the preferred substrate layer is fragile paper.
The preparation method of the tearing-open type anti-transfer anti-counterfeiting label comprises the following steps of:
1) Coating glue on the plastic film surface of the laser hidden layer by using a composite glue spreader, and compositing the plastic film surface with the aluminum washing film layer through an oven, wherein the unwinding tension of the aluminum washing film layer is 150-250N, and the unwinding tension of the laser hidden layer is 130-150% of the unwinding tension of the aluminum washing film layer, and the purpose is that the composite film is bent towards the laser hidden layer;
The unwinding tension of the aluminum washing film layer is too low to cause bending and rolling of the aluminum washing film, the problem of wrinkling of the coating is caused, when the film is too high, the aluminum washing film is stretched seriously, the film cannot be compounded, the unwinding tension of the laser stealth layer is 130-150% of the unwinding tension of the aluminum washing film layer, if the tension is too low, the film surface can be leveled or bent towards the aluminum washing film layer after compounding, the aluminum washing film layer can be bent towards the post-processing procedure, the label is bent towards the back of an object to be adhered, the label is easy to warp, and the label cannot be suitable for bending and labeling. If the unreeling tension of the laser hidden layer is too large, reeling after compounding can be caused, and the subsequent working procedure is difficult to process.
2) Compounding the aluminum washing film layer surface of the composite film obtained in the step 1) with a second heat-shrinkable film layer by using glue, wherein the tension of the composite film is set to be 150-180N, and the tension of the second heat-shrinkable film layer is set to be 6-10% of the tension of the composite film during compounding, so as to keep the compounded film surface still bending towards the laser hidden layer;
the tension of the composite film is set to be 150-180N, the aluminum washing film is bent and rolled due to the fact that the tension is too low, the covering film is wrinkled, and the aluminum washing film cannot be compounded due to the fact that the stretching is serious when the tension is too high. The unreeling tension of the second heat-shrinkable film layer is 6-10% of the tension of the composite film, if the tension is too low, the heat-shrinkable film cannot be straightened, the film is easy to wrinkle when being coated, and if the tension is too high, for example, 15%, although the film is still bent towards the surface of the composite film after the process is finished, the label is bent towards the surface of the heat-shrinkable film after the process is finished, the label is easy to warp, the label is not suitable for bending and labeling, and if the tension is continuously increased, for example, more than 30%, the heat-shrinkable film is excessively deformed in a stretching way and cannot be compounded.
3) Positioning and printing the second heat-shrinkable film layer to form a first printing layer, and printing by a digital printer, wherein the temperature is set to be 60-65 ℃ when digital coating liquid is coated;
4) Compounding a first pressure-sensitive adhesive layer and a first heat-shrinkable film layer on the first printing layer;
5) Locally coating release coating on the laser stealth layer to form a local release coating;
6) Printing on the surface of the local release coating layer in a sleeved mode to form a second printing layer, printing by a digital printer, and setting the temperature to be 60-65 ℃ when the digital coating liquid is coated;
7) Compounding the second printing layer with an aluminized layer for transferring the holographic rainbow aluminized layer material by using glue;
8) Stripping the PET film of the material of the transferred holographic rainbow aluminized layer in the step 7);
9) Die-cutting a substrate layer of the self-adhesive to form a transfer-preventing flower knife, compounding the transfer holographic rainbow aluminum plating layer of the step 8) with the substrate layer, setting the temperature of an oven to be 30-50 ℃, and die-cutting to form a uncovering type transfer-preventing anti-counterfeiting label;
The self-adhesive comprises a fifth adhesive layer, a substrate layer, a pressure-sensitive adhesive layer and a release paper layer.
Identification the following preparation of the base raw materials is required before preparation.
The preparation process of the aluminum washing film layer comprises the following steps:
Coating a molding coating on a plastic film layer to form a molding coating layer, preparing a molding holographic plate after coating, molding a molding information layer by using the molding holographic plate, printing a local water-based aluminum washing ink to obtain a local positioning aluminum washing ink layer, aluminizing in a vacuum aluminizing machine, and then carrying out a fine aluminum washing procedure to wash the local positioning aluminum washing ink layer and the corresponding aluminum layer, wherein the rest aluminum layer is a positioning aluminum washing layer;
Etching on a photoetching offset plate by adopting laser etching equipment, wherein the precision of a holographic white area is 200nm, the photoetching speed is 1 square centimeter per hour, and the exposure time is 50ms to prepare the holographic mould pressing plate;
The preparation process of the laser stealth layer is as follows:
And coating a coating below the plastic film layer, and performing mould pressing on the coating to form a mould pressing holographic information layer. After the partial release coating is coated on the mould pressing holographic information layer of the laser concealing layer, the laser information concealing can be realized. The laser hidden layer and the local release coating can present the holographic information of mould pressing when being separated. The local release coating plays a role in hiding information of the laser hidden layer, meanwhile, the uncovering type mark is separated from the laser hidden layer and the local release coating, and laser hidden information is displayed on the laser hidden layer and the release coating, and cannot disappear after recombination, so that the effect of preventing transfer of secondary use and the warning effect are achieved.
The preparation process of the transfer holographic rainbow aluminized layer comprises the following steps:
A. coating transfer laser aluminizing paint on the PET film, and carrying out die pressing by using a die pressing printing integrated machine to obtain a laser die pressing information layer;
B. And carrying out full-plate aluminizing by utilizing a vacuum aluminizing technology to obtain an aluminized layer, and obtaining the transfer holographic rainbow mold pressing aluminized film material, wherein the transfer laser aluminized coating layer, the laser mold pressing information layer and the aluminized layer form the transfer holographic rainbow aluminized layer, and the transfer laser aluminized coating layer can be peeled off from the PET film.
In summary, the beneficial effects of the invention are as follows:
1. The transfer prevention performance is strong, and the difficulty of secondary use of transfer is improved by adopting multiple measures.
(1) The bottom substrate is subjected to die cutting flower cutter treatment, the label substrate can be uncovered and destroyed from the flower cutter to prevent label transfer, and after the label substrate is destroyed, the uncovered layer is easily separated from the broken opening of the substrate flower cutter, so that the bottom layer is easily uncovered from the surface layer.
(2) The local uncovering process is combined with the laser concealing process, the mark can be damaged in a layered manner, and hidden laser information is displayed at the same time, so that a warning effect is achieved.
(3) And in the multiple heat shrinkage film process, under the action of hot blowing, the heat shrinkage film and the first printing layer shrink and deform under heating, so that the identification patterns and the structures are damaged, and the secondary use cannot be realized.
2. The invention adopts the bottom substrate flower knife die cutting process, so that the release layer is arranged at the broken position of the label substrate flower knife, the opening is broken at the substrate left-to-bottom position, and the complete display of the hidden information inside the label can be ensured.
3. The aluminum washing film layer is provided with a holographic white area, the variable information on the first printing layer can be printed on the holographic white area, when the variable information of the first printing layer is a two-dimensional code or a one-dimensional bar code, the recognition grade can be effectively improved, and the grade can reach A grade and is far higher than the requirement D grade of the industry standard through testing, so that the industrial production requirement is met.
4. The base material adopts a die cutting flower cutter process, such as a square flower cutter, so that the whole mark is easy to bend, the label is not easy to warp, the method is particularly suitable for 90-degree seal labeling and curved surface labeling, and meanwhile, the problem that hidden information cannot be uncovered completely when the bending seal mark is uncovered is solved.
5. Transferring the holographic rainbow mould pressing aluminizing gives the mark a better aesthetic degree.
6. The preparation method is scientific, reasonable, simple and feasible.
Drawings
FIG. 1 is a schematic diagram of the structure of a tamper evident transfer-resistant label of the present invention;
FIG. 2 is a graph showing the surface effect, holographic effect, irrecoverable effect of the peeling layer (i.e., peeling part) and the peeling back effect of the peeling-off type anti-transfer anti-counterfeit label prepared in example 1 of the present invention;
FIG. 3 is a graph showing the surface effect, holographic effect, peeling layer irrecoverable effect and peeling bottom effect of the peeling type anti-transfer anti-counterfeit label prepared in example 2 of the present invention;
FIG. 4 is a graph showing the surface effect, holographic effect, peeling layer irrecoverable effect and peeling bottom effect of the peeling type anti-transfer anti-counterfeit label prepared in example 3 of the present invention;
in the figure, the aluminum-coated plastic film comprises a first heat-shrinkable film layer 1, a first pressure-sensitive adhesive layer 2, a first printing layer 3, a second heat-shrinkable film layer 4, a second pressure-sensitive adhesive layer 5, a 6, an aluminum-washed film layer, a 7, a third glue layer, a 8, a laser secret layer, a 9, a local release coating, a 10, a second printing layer, a 11, a fourth glue layer, a 12, a transfer holographic rainbow aluminum-coated layer, a 13, a fifth glue layer, a 14, a substrate layer, a 15, a third pressure-sensitive adhesive layer, a 16 and a release paper layer.
Detailed Description
The invention is further illustrated below with reference to examples.
Example 1
The tearing-open type anti-transfer anti-counterfeiting label comprises a first heat shrinkage film layer 1, a first pressure-sensitive adhesive layer 2, a first printing layer 3, a second heat shrinkage film layer 4, a second pressure-sensitive adhesive layer 5, an aluminum washing film layer 6, a third glue layer 7, a laser stealth layer 8, a local release coating 9, a second printing layer 10, a fourth glue layer 11, a transfer holographic rainbow aluminizing layer 12, a fifth glue layer 13, a substrate layer 14, a third pressure-sensitive adhesive layer 15 and a release paper layer 16 which are sequentially arranged from top to bottom. The anti-counterfeiting mark can be uncovered and is divided into a stripping part and a bottom-reserving part, wherein the stripping part sequentially comprises a first heat-shrinkable film layer 1, a first pressure-sensitive adhesive layer 2, a first printing layer 3, a second heat-shrinkable film layer 4, a second pressure-sensitive adhesive layer 5, an aluminum-washing film layer 6, a third glue layer 7, a laser stealth layer 8 and a second printing layer 10 from top to bottom, and the bottom-reserving part sequentially comprises a local release coating 9, a second printing layer 10, a fourth glue layer 11, a transfer holographic rainbow aluminizing layer 12, a fifth glue layer 13, a substrate layer 14, a third pressure-sensitive adhesive layer 15 and a release paper layer 16 from top to bottom.
The first heat-shrinkable film layer 1 and the second heat-shrinkable film layer 4 are PP films, and the thickness is 20 mu m.
The first pressure-sensitive adhesive layer 2 and the second pressure-sensitive adhesive layer 5 are UV pressure-sensitive adhesives having a thickness of 10 μm.
The first printed layer 3 and the second printed layer 10 contain variable information. The first printing layer 3 has variable information as two-dimensional code, and the second printing layer 10 has variable digital code. The aluminum-washed film layer 6 includes unwashed aluminum areas that mask the variable numbers on the second printed layer 10. The aluminum washing film layer 6 comprises a holographic white area, and the holographic white area corresponds to the two-dimensional code position of the first printing layer 3, so that the recognition level of the two-dimensional code can be effectively improved.
The preparation method of the tearing-open type anti-transfer anti-counterfeiting label comprises the following steps of:
1) Coating glue on the plastic film surface of the laser hidden layer 8 by using a composite glue spreader, and compositing the plastic film surface and the aluminum washing film layer 6 together by using an oven to obtain a composite film, wherein the unreeling tension of the aluminum washing film layer 6 is 200N, the unreeling tension of the laser hidden layer 8 is 140% of the unreeling tension of the aluminum washing film layer 6, and the purpose is that the composite film is bent towards the laser hidden layer 8;
2) Compounding the aluminum-washed film layer 6 surface of the composite film obtained in the step 1 with the second heat-shrinkable film layer 4 by using glue, wherein the tension of the composite film is set to 165N, and the tension of the second heat-shrinkable film layer 4 is set to 8% of the tension of the composite film during compounding, so as to keep the compounded film surface still bent towards the laser hidden layer 8;
3) Positioning and printing the second heat-shrinkable film layer 4 to form a first printing layer 3, printing by a digital printer, setting the temperature to 62 ℃ when the digital coating liquid is coated, and flattening the composite film when the composite film is printed by increasing the tension of the surface of the heat-shrinkable film after the heat-shrinkable film is heated;
4) Compounding the first pressure-sensitive adhesive layer 2 and the first heat-shrinkable film layer 1 on the first printing layer 3;
5) A release coating is locally coated on the laser stealth layer 8 to form a local release coating 9;
6) Printing on the surface of the local release coating 9 to form a second printing layer 10, printing by a digital printer, setting the temperature to 62 ℃ when the digital coating liquid is coated, and increasing the surface tension of the heat-shrinkable film after the heat-shrinkable film is heated to enable the composite film to be flat during printing;
7) Compounding the second printing layer 10 with an aluminized layer of a transfer holographic rainbow aluminized layer 12 material by using glue;
8) Stripping the PET film of the material of the transfer holographic rainbow aluminized layer 12 in the step 7;
9) And (3) die-cutting a substrate layer 14 of self-adhesive to form a transfer-preventing flower knife, compounding the transfer-preventing holographic rainbow aluminum plating layer 12 and the substrate layer 14 in the step (8), setting the temperature of an oven to 40 ℃, and die-cutting to form the uncovering type transfer-preventing anti-counterfeiting label, wherein the self-adhesive comprises a fifth adhesive layer 13, the substrate layer 14, a third pressure-sensitive adhesive layer 15 and a release paper layer 16.
The preparation process of the aluminum washing film layer 6 comprises the following steps:
Coating a molding coating on a plastic film layer to form a molding coating layer, coating, preparing a molding holographic plate, molding the molding holographic plate to form a molding information layer by using the molding holographic plate, printing local water-based aluminum washing ink to obtain a local positioning aluminum washing ink layer, aluminizing in a vacuum aluminizing machine, then carrying out a fine aluminum washing procedure, washing the local positioning aluminum washing ink layer and the corresponding aluminum layer, and removing the residual aluminum layer to form a positioning aluminum washing layer, wherein the preparation process of the molding holographic plate comprises the steps of etching on a photoetching offset plate by using laser etching equipment, wherein the holographic white area has the precision of 200nm, the photoetching speed of 1 square centimeter/hour, and the exposure time of 50ms to prepare the holographic molding plate.
The preparation process of the laser covert layer 8 is as follows:
and coating a coating below the plastic film layer, and performing mould pressing on the coating to form a mould pressing holographic information layer.
The preparation process of the transfer holographic rainbow aluminized layer 12 is as follows:
A. coating transfer laser aluminizing paint on the PET film, and carrying out die pressing by using a die pressing printing integrated machine to obtain a laser die pressing information layer;
B. and carrying out full-plate aluminizing by utilizing a vacuum aluminizing technology to obtain an aluminized layer, and obtaining the transfer holographic rainbow mold pressing aluminized film material, wherein the transfer laser aluminized coating layer, the laser mold pressing information layer and the aluminized layer form a transfer holographic rainbow aluminized layer 12, and the transfer laser aluminized coating layer can be peeled off from the PET film.
Example 2
The tearing-open type anti-transfer anti-counterfeiting label is different from the embodiment 1 in that the aluminum washing film layer 6 is not provided with a holographic white area.
The preparation method is characterized in that the preparation process of the aluminum washing film layer 6 is as follows:
coating a molding coating on a plastic film layer to form a molding coating layer, coating, preparing a molding holographic plate, molding the molding holographic plate to form a molding information layer by using the molding holographic plate, printing local water-based aluminum washing ink to obtain a local positioning aluminum washing ink layer, aluminizing in a vacuum aluminizing machine, then carrying out a fine aluminum washing procedure, washing the local positioning aluminum washing ink layer and the corresponding aluminum layer, and washing the residual aluminum layer to obtain a positioning aluminum washing layer, wherein when the molding plate is prepared, the corresponding area of the holographic white area in the embodiment 1 is not subjected to photoetching treatment, and the aluminum plating layer of the area is not washed.
Example 3
The tearing-open type anti-transfer anti-counterfeiting label is different from the embodiment 1 in that an unwashed aluminum area and a holographic white area are not arranged on the aluminum washing film layer 6.
The preparation method is characterized in that the preparation process of the aluminum washing film layer 6 is as follows:
coating a molding coating on a plastic film layer to form a molding coating layer, preparing a molding holographic plate after coating, molding the molding holographic plate to form a molding information layer by using the molding holographic plate, printing local water-based aluminum washing ink to obtain a local positioning aluminum washing ink layer, aluminizing in a vacuum aluminizing machine, then performing a fine aluminum washing procedure, washing the local positioning aluminum washing ink layer and the corresponding aluminum layer, and washing the residual aluminum layer to obtain a positioning aluminum washing layer, wherein when the molding plate is prepared, the corresponding area of the holographic white area in the embodiment 1 is not subjected to photoetching treatment, and when positioning aluminum washing, the aluminized layer of the corresponding area of the holographic white area in the embodiment 1 is washed.
500 Labels prepared in the embodiment 1-3 are respectively taken and tested in the two-dimensional code grade, wherein the test method is that a bar code grade tester LVS-9510 is used, the two-dimensional code to be tested on the labels is placed in a region to be tested of the bar code grade tester for detection, and the test results are shown in the table 1.
TABLE 1 two-dimensional code grade test results
According to GB/T23704-2017 'inspection of printing quality of two-dimensional bar code symbol', the grade F is failure, the grade test of the two-dimensional code in the embodiment is grade D above, which meets the national standard requirement, and along with the requirement of industrial labeling acquisition and reading, the grade of the two-dimensional code can meet the high-speed acquisition and reading only by reaching grade B above, in the embodiment 1, a holographic white aluminum plating process is adopted at the corresponding position below the two-dimensional code, the grade of the bar code reaches grade B above, the test data is higher than 3.0, and the grade A accounts for more than 99%.
The invention is not limited to the embodiments described above. The particular embodiments described above are illustrative only and not limiting. Many modifications may be made by one of ordinary skill in the art without departing from the scope of the invention, which is to be determined from the claims.
Claims (10)
1. The uncovering type transfer-resistant anti-counterfeiting label is characterized by comprising a first heat-shrinkable film layer (1), a first pressure-sensitive adhesive layer (2), a first printing layer (3), a second heat-shrinkable film layer (4), a second pressure-sensitive adhesive layer (5), an aluminum-washing film layer (6), a third glue layer (7), a laser stealth layer (8), a local release coating (9), a second printing layer (10), a fourth glue layer (11), a transfer holographic rainbow aluminized layer (12), a fifth glue layer (13), a substrate layer (14), a third pressure-sensitive adhesive layer (15) and a release paper layer (16) which are sequentially arranged from top to bottom.
2. The uncovering type anti-transfer anti-counterfeiting label according to claim 1 is characterized in that the anti-counterfeiting label can be uncovered and is divided into a stripping part and a reserved bottom part, the stripping part comprises a first heat-shrinkable film layer (1), a first pressure-sensitive adhesive layer (2), a first printing layer (3), a second heat-shrinkable film layer (4), a second pressure-sensitive adhesive layer (5), an aluminum-washing film layer (6), a third glue layer (7), a laser stealth layer (8) and a second printing layer (10) in sequence from top to bottom, and the reserved bottom part comprises a local release coating (9), a second printing layer (10), a fourth glue layer (11), a transfer holographic rainbow aluminum plating layer (12), a fifth glue layer (13), a base material layer (14), a third pressure-sensitive adhesive layer (15) and a release paper layer (16) in sequence from top to bottom.
3. The tamper-evident anti-transfer security label according to claim 1, wherein the first heat-shrinkable film layer (1) and the second heat-shrinkable film layer (4) are one of PP, PE, PVC, POF a, and have a thickness of 10-50 μm.
4. The tearing-open type anti-transfer anti-counterfeiting label according to claim 1, wherein the first pressure-sensitive adhesive layer (2) and the second pressure-sensitive adhesive layer (5) are one of hot-melt pressure-sensitive adhesive, oily pressure-sensitive adhesive, aqueous pressure-sensitive adhesive and UV pressure-sensitive adhesive, and have a thickness of 3-15 μm.
5. The transfer-resistant tamper-evident label of claim 1, wherein the first printed layer (3) and the second printed layer (10) comprise variable information.
6. The tamper-evident transfer-resistant security label of claim 5, wherein the aluminum-washed film layer (6) comprises unwashed aluminum areas that mask variable information on the second printed layer (10).
7. The tamper-evident transfer-resistant security label of claim 5, wherein the aluminum-washed film layer (6) comprises a holographic white area corresponding to the variable information location of the first printed layer (3).
8. A method for preparing the tamper-evident anti-transfer anti-counterfeiting label according to any one of claims 1 to 7, which is characterized by comprising the following steps:
1) Coating glue on the plastic film surface of the laser hidden layer (8) by adopting a composite glue spreader, and compositing the plastic film surface and the aluminum washing film layer (6) together by adopting an oven to obtain a composite film, wherein the unwinding tension of the aluminum washing film layer (6) is 150-250N, and the unwinding tension of the laser hidden layer (8) is 130-150% of the unwinding tension of the aluminum washing film layer (6);
2) Compounding the aluminum washing film layer (6) surface of the composite film obtained in the step 1) with the second heat-shrinkable film layer (4) by using glue, wherein the tension of the composite film is set to be 150-180N, and the tension of the second heat-shrinkable film layer (4) is set to be 6-10% of the tension of the composite film during compounding;
3) Positioning and printing the second heat-shrinkable film layer (4) to form a first printing layer (3), and printing by a digital printer, wherein the temperature is set to be 60-65 ℃ when digital coating liquid is coated;
4) A first pressure-sensitive adhesive layer (2) is used on the first printing layer (3) to be compounded with the first heat-shrinkable film layer (1);
5) A release coating is locally coated on the laser stealth layer (8) to form a local release coating (9);
6) Printing on the surface of the local release coating (9) in a sleeve manner to form a second printing layer (10), wherein the temperature is set to be 60-65 ℃ when a digital printing machine is used for printing and coating digital coating liquid;
7) Compounding the second printing layer (10) with an aluminized layer of a transfer holographic rainbow aluminized layer (12) material by using glue;
8) Stripping the PET film of the material of the transfer holographic rainbow aluminized layer (12) in the step 7);
9) Die-cutting a substrate layer (14) of the self-adhesive to form a transfer-preventing flower knife, compounding the transfer holographic rainbow aluminum plating layer (12) of the step 8) with the substrate layer (14), setting the temperature of an oven to be 30-50 ℃, and die-cutting to form the uncovering type transfer-preventing anti-counterfeiting label;
The self-adhesive comprises a fifth adhesive layer (13), a base material layer (14), a third pressure-sensitive adhesive layer (15) and a release paper layer (16).
9. The method for preparing the tearing-open type anti-transfer anti-counterfeiting label according to claim 8 is characterized in that the preparation process of the aluminum washing film layer (6) is as follows:
Coating a molding coating on a plastic film layer to form a molding coating layer, preparing a molding holographic plate after coating, molding a molding information layer by using the molding holographic plate, printing a local water-based aluminum washing ink to obtain a local positioning aluminum washing ink layer, aluminizing in a vacuum aluminizing machine, and then carrying out a fine aluminum washing procedure to wash the local positioning aluminum washing ink layer and the corresponding aluminum layer, wherein the rest aluminum layer is a positioning aluminum washing layer;
Etching on a photoetching offset plate by adopting laser etching equipment, wherein the precision of a holographic white area is 200nm, the photoetching speed is 1 square centimeter per hour, and the exposure time is 50ms to prepare the holographic mould pressing plate;
the preparation process of the laser hidden layer (8) is as follows:
and coating a coating below the plastic film layer, and performing mould pressing on the coating to form a mould pressing holographic information layer.
10. The method for preparing the tamper-evident anti-transfer anti-counterfeiting label according to claim 8, wherein the preparation process of the transfer holographic rainbow aluminum plating layer (12) is as follows:
A. coating transfer laser aluminizing paint on the PET film, and carrying out die pressing by using a die pressing printing integrated machine to obtain a laser die pressing information layer;
B. And carrying out full-plate aluminizing by utilizing a vacuum aluminizing technology to obtain an aluminized layer, and obtaining the transfer holographic rainbow mold pressing aluminized film material, wherein the transfer holographic rainbow aluminized layer (12) is formed by the transfer laser aluminized coating layer, the laser mold pressing information layer and the aluminized layer, and the transfer laser aluminized coating layer can be peeled off from the PET film.
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| CN202411315028.4A CN119516893A (en) | 2024-09-20 | 2024-09-20 | Tear-off type anti-transfer anti-counterfeiting label and preparation method thereof |
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| CN202411315028.4A CN119516893A (en) | 2024-09-20 | 2024-09-20 | Tear-off type anti-transfer anti-counterfeiting label and preparation method thereof |
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Cited By (1)
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