CN113736389B - Manufacturing method and structure of anti-copying laser anti-counterfeiting film - Google Patents
Manufacturing method and structure of anti-copying laser anti-counterfeiting film Download PDFInfo
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- CN113736389B CN113736389B CN202111037038.2A CN202111037038A CN113736389B CN 113736389 B CN113736389 B CN 113736389B CN 202111037038 A CN202111037038 A CN 202111037038A CN 113736389 B CN113736389 B CN 113736389B
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/50—Adhesives in the form of films or foils characterised by a primer layer between the carrier and the adhesive
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D65/38—Packaging materials of special type or form
- B65D65/42—Applications of coated or impregnated materials
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/042—Coating with two or more layers, where at least one layer of a composition contains a polymer binder
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/22—Plastics; Metallised plastics
- C09J7/25—Plastics; Metallised plastics based on macromolecular compounds obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
- C09J7/255—Polyesters
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2433/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2475/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2475/04—Polyurethanes
- C08J2475/14—Polyurethanes having carbon-to-carbon unsaturated bonds
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
- C09J2301/12—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
- C09J2301/122—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present only on one side of the carrier, e.g. single-sided adhesive tape
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2433/00—Presence of (meth)acrylic polymer
- C09J2433/003—Presence of (meth)acrylic polymer in the primer coating
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2467/00—Presence of polyester
- C09J2467/006—Presence of polyester in the substrate
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2475/00—Presence of polyurethane
- C09J2475/003—Presence of polyurethane in the primer coating
Abstract
The invention discloses a manufacturing method and a structure of an anti-copying laser anti-counterfeiting film, wherein the manufacturing method comprises the following steps: setting a cured coating and a micro-nano grating structure pattern on the surface of the substrate layer to form an image layer; setting a specific pattern on the image layer to form a printing layer; adding a high-reflection medium on the printing layer to form a nano coating; and (3) coating UV ink on the surface of the nano coating to form a UV protective layer. By adopting the manufacturing method of the anti-copying laser anti-counterfeiting film, the copying difficulty is improved, a printing layer which is matched with the chemical composition of the image layer and is printed with printing ink of a specific pattern is additionally arranged between the anti-counterfeiting film image layer and the UV protective layer, and even if inorganic plating layers such as a nano coating and the like are washed away, the grating structure of the image layer cannot be completely copied, so that the anti-counterfeiting effect of the packaging film is ensured.
Description
Technical Field
The invention relates to the technical field of anti-counterfeiting packaging films, in particular to a manufacturing method and a structure of an anti-copying laser anti-counterfeiting film.
Background
The micro-nano grating structure is applied to a plastic film, can be used for manufacturing a laser film with holographic effect, and is often used in the field of packaging or card identification. After the existing packaging film is stripped, the inorganic coating is washed away by operations such as acid washing, alkali washing and the like, the grating structure is directly exposed, and the grating structure can be copied by a certain technical means, so that the anti-counterfeiting technology is cracked. Therefore, it is needed to design a method for manufacturing an anti-copy laser anti-counterfeiting film to solve the problem that the anti-counterfeiting film is easy to copy.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a manufacturing method of an anti-copying laser anti-counterfeiting film, which solves the problem that the existing card and package are easy to copy and the anti-counterfeiting technology is easy to crack.
In order to achieve the above purpose, the invention is realized by the following technical scheme: the manufacturing method of the anti-copying laser anti-counterfeiting film comprises the following steps of:
setting a cured coating and a micro-nano grating structure pattern on the surface of the substrate layer to form an image layer;
setting a specific pattern on the image layer to form a printing layer;
adding a high-reflection medium on the printing layer to form a nano coating;
and (3) coating UV ink on the surface of the nano coating to form a UV protective layer.
Preferably, the method further comprises: and adding a back adhesive layer on the UV protective layer to form the copy-proof laser anti-counterfeiting film.
Preferably, the surface of the substrate layer is provided with a cured coating and a micro-nano grating structure pattern to form an image layer, and the method further comprises the following steps: and arranging an undercoat layer on the surface of the substrate layer, and arranging a cured coating and a micro-nano grating structure pattern on the surface of the undercoat layer to form an image layer.
Preferably, the bottom coating is an acrylic or polyurethane system bottom coating with a thickness of 0.5-5 microns.
Preferably, a cured coating and a micro-nano grating structure pattern are arranged on the surface of the substrate layer to form an image layer, which specifically comprises:
coating a double-component or multi-component reactive resin on the substrate layer;
the micro-nano grating structure color pattern with anti-counterfeiting function is molded and solidified with resin to form an image layer with the thickness of 0.5-10 micrometers;
wherein the substrate layer is any one or more than two of PVC, PVC, PP, PETG, PC, ABS materials, and the thickness is 12-400 micrometers.
Preferably, the image layer is provided with a specific pattern to form a printing layer, which specifically includes: the specific pattern is printed on the image layer by using polyurethane system ink which is matched with the properties of the cured coating of the image layer in an on-line manner so as to form a printing layer with the thickness of 0.5-10 microns, wherein the printing layer is suitable for one or more printing modes of gravure printing, offset printing, silk screen printing, laser printing and ink jet printing.
Preferably, a highly reflective medium is added on the printing layer to form a nano coating, which specifically includes: functional coatings are added to the printing layer by adopting PVD, CVD and nano coating methods to form nano coatings with the thickness of 200-500 angstroms, wherein the nano coatings are generally high-reflection metals or metal compounds and nano composite materials thereof.
Preferably, the UV ink is added on the surface of the nano coating to form a UV protection layer, which specifically comprises: UV ink using urethane acrylate and hydroxy acrylic resin is coated on the nano-coating and UV lamp irradiation is performed to cure the ink to form a UV protection layer with a thickness of 0.5-10 micrometers.
The invention also provides an anti-copying laser anti-counterfeiting film which comprises a substrate layer, an image layer, a printing layer, a nano coating, a UV protective layer and a back adhesive layer which are sequentially arranged from bottom to top.
Preferably, a primer layer is further arranged between the substrate layer and the image layer, and the thickness of the primer layer is 0.5-5 microns.
The invention has the following beneficial effects:
1. the surface of the substrate layer is provided with the curing coating and the micro-nano grating structure pattern to form the image layer, the curing coating is made of double-component or multi-component reactive resin, the temperature after crosslinking and curing is high, the bonding fastness of the coating is high, and the micro-nano grating structure can not be completely copied under the condition that the nano coating is peeled off;
2. setting a specific pattern on the image layer to form a printing layer, and printing the specific pattern on the printing layer by using ink similar to the chemical composition of the image layer, so that the image layer and the printing layer can carry out error-free overprinting on the pattern, and a certain copy preventing effect is achieved;
3. the UV ink is additionally coated on the surface of the nano coating to form a UV protective layer, the UV ink of polyurethane acrylic ester and hydroxy acrylic resin is coated on the pattern and is irradiated by a UV lamp to solidify the ink, and the UV protective layer is used for improving the acid resistance, alkali resistance and organic solvent resistance of the membrane and preventing the nano coating from peeling off due to acid-base corrosion;
4. the packaging film manufactured by the manufacturing method of the anti-copying laser anti-counterfeiting film provided by the invention has the performance of acid washing/alkali washing resistance, improves the copying and copying difficulty, and additionally adds a printing layer for printing specific patterns by using ink similar to the chemical composition of the image layer between the image layer and the nano coating of the anti-counterfeiting film, so that even if inorganic coating such as the nano coating is washed away, the grating structure of the image layer cannot be completely copied, and the anti-counterfeiting effect of the packaging film is ensured.
Drawings
FIG. 1 is a schematic diagram of a duplication-preventing laser anti-counterfeiting film according to the present invention;
FIG. 2 is a schematic diagram of a duplication-preventing laser anti-counterfeiting film according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a duplication-preventing laser anti-counterfeiting film according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a duplication-preventing laser anti-counterfeiting film according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a duplication-preventing laser anti-counterfeiting film according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of an anti-duplication laser anti-counterfeiting film according to an embodiment of the invention.
In the figure: 1. a substrate layer; 2. a primer layer; 3. an image layer; 4. printing a layer; 5. a nano coating; 6. a UV protective layer; 7. a back adhesive layer; 8. an anti-counterfeiting film; 9. a specific pattern; 10. micro-nano grating structure pattern.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides a technical scheme that: the manufacturing method of the anti-copying laser anti-counterfeiting film comprises the following specific steps:
s110, setting a curing coating and a micro-nano grating structure pattern 10 on the surface of a substrate layer 1 to form an image layer 3, wherein the curing coating is generally bi-component or multi-component reactive resin, and has high Tg temperature and high plating fastness after crosslinking curing; the image layer 3 is formed by molding and curing the micro-nano grating structure pattern 10 with the anti-counterfeiting function with resin, so that the temperature resistance is improved under the condition of ensuring the resin crosslinking and curing of the image layer 3; the base material layer 1 is made of one or more than two of PVC, PVC, PP, PETG, PC, ABS composite materials, and has a thickness of 12-400 micrometers.
S120, setting a specific pattern on the image layer 3 to form a printing layer 4, and setting a specific pattern 9 required by the ink printing package similar to the chemical composition of the image layer 3 on the image layer 3 to form the printing layer 4, thereby preventing the image from being completely duplicated.
S130, adding a high-reflection medium on the printing layer 4 to form a nano coating 5, wherein the nano coating 5 is generally coated by high-reflection metal or metal compound and nano composite material thereof to increase the brightness of the image, and specific materials are as follows: zinc sulfide, aluminum, copper, zinc, tin, magnesium fluoride, silicon dioxide, selenium sulfide and other materials, and the thickness of the nano coating 4 is 200-500 angstroms.
And S140, coating UV ink on the surface of the nano coating 5 to form a UV protection layer 6, coating the UV protection layer 6 with UV ink of polyurethane acrylic ester and hydroxy acrylic resin, and performing UV lamp irradiation to cure the ink to form the UV protection layer 6 with the thickness of 0.5-10 micrometers, wherein the UV protection layer 6 uses one or more of common UV glues.
In this embodiment, the method may further include S150, adding a back adhesive layer 7 on the UV protection layer 6 to form an anti-duplication laser anti-counterfeiting film, where the back adhesive layer 7 uses a hot melt adhesive, and has a thickness of 0.5-10 micrometers.
Meanwhile, setting the cured coating and the micro-nano grating structure pattern 10 on the surface of the substrate layer 1 to form the image layer 3 may further include: the surface of the base material layer 1 is provided with an undercoat layer 2, the undercoat layer 2 is generally an acrylic acid system undercoat or a polyurethane system undercoat, the thickness of the undercoat layer 2 is 0.5-5 microns, whether the undercoat layer 2 is arranged or not can be determined according to the different requirements of the base material and the fastness, the undercoat layer 2 is an acrylic acid system undercoat, the thickness of the undercoat layer 2 is 0.5-5 microns, and after the undercoat layer is arranged, the surface of the undercoat layer is provided with a cured coating and a micro-nano grating structure pattern 10 to form an image layer 3.
In a preferred embodiment, a suitable PET film is selected as the base layer 1, and the thickness is 12-25 μm, a cured coating of polyurethane resin having a reactive component is coated on the PET film to form the image layer 3, and the thickness is generally 0.8-1.5 μm, and then corona is applied to the coated surface of the PET film (the purpose is to increase the binding force with the medium, and the operation may be omitted). Subsequently, the micro-nano grating structure pattern 10 is molded on the image layer 3 as shown in fig. 2, and at the same time, another specific pattern 9 is in-line gravure-printed by using polyurethane system ink similar to the properties of the image layer 3 to form a printed layer 4 as shown in fig. 3, and the printed specific pattern 9 is covered on the micro-nano grating structure pattern 10 of the image layer as shown in fig. 4.
The nano coating 5 is formed on the surface of the printing layer 4 by true plating of a dielectric layer, and the nano coating 5 is coated by adopting high-reflection metal or metal compound and nano composite material thereof so as to increase the pattern brightness of the printing layer 4 (vacuum aluminizing is more commonly used) and form the anti-counterfeiting film 8 with the anti-copying function. If the micro-nano grating structure pattern 10 is taken out for copying, the nano coating 5 is washed off firstly, even if the nano coating 5 is corroded by acid and alkali, the printing layer 4, the image layer 3 printed with the anti-counterfeiting pattern and the like are exposed, the printing layer 4 and the image layer 3 are bonded with each other, the micro-nano grating structure pattern 10 cannot be completely copied, the obtained micro-nano grating structure 10 pattern can only be shown in fig. 5, and a counterfeiter can overprint the micro-nano grating structure pattern 10 by 0 error if a product to be counterfeited, the secondary overprinting is difficult to complete in actual operation, and the actual imitation effect deviates as shown in fig. 6, so that the process can play a certain role in preventing copying.
After the molding process is completed, a UV ink of a polyurethane acrylate and hydroxy acrylic resin system is coated on the pattern of the nano coating 5 and is irradiated by a UV lamp to cure the ink, the UV protective layer 6 is mainly used for improving the acid resistance, alkali resistance and organic solvent resistance of the membrane, the coating cannot be effectively removed by using processes such as acid washing, alkali washing and the like, and the coating can be partially dissolved by using strong organic solvents such as ketones and the like, but the printing layer 4 and the image layer 3 are damaged, and complete replication cannot be realized. The coating of the UV protective layer 6 with hot melt adhesive with the thickness of 2-5 μm is continued (the process can be finished at the end use client end for finishing the bonding on paper and card).
The invention also provides an anti-copying laser anti-counterfeiting film, which is sequentially provided with a substrate layer 1, an image layer 3, a printing layer 4, a nano coating 5, a UV protective layer 6 and a back adhesive layer 7 from bottom to top.
In a preferred embodiment, as shown in fig. 1, an undercoat layer 2 is further disposed between the substrate layer 1 and the image layer 3, and the thickness of the undercoat layer 2 is 0.5 to 5 micrometers.
The packaging film manufactured by the manufacturing method of the anti-copying laser anti-counterfeiting film provided by the invention has the performance of acid washing/alkali washing resistance, the copying and copying difficulty is improved, in addition, a printing layer which is similar to the chemical composition of the image layer and is used for printing a specific pattern by using ink is additionally arranged between the image layer and the UV protective layer of the anti-counterfeiting film, even if inorganic plating layers such as a nano coating layer are washed away, the grating structure of the image layer cannot be completely copied, and the anti-counterfeiting effect of the packaging film is ensured.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The manufacturing method of the anti-copying laser anti-counterfeiting film is characterized by comprising the following steps of:
setting a cured coating and a micro-nano grating structure pattern on the surface of a substrate layer to form an image layer, wherein the cured coating is reactive polyurethane resin and specifically comprises the following components: coating double-component or multi-component reactive resin on the substrate layer, and carrying out mould pressing and curing on the micro-nano grating structure pattern with the anti-counterfeiting function and the resin to form an image layer with the thickness of 0.5-10 micrometers;
providing a specific pattern on the image layer to form a printing layer, specifically comprising: coating material curing properties with image layer
Printing specific patterns on the image layer by the printing ink of the quality-matched polyurethane system in an on-line manner to form a printing layer with the thickness of 0.5-10 microns, wherein the printing layer and the image layer are mutually bonded;
adding a high-reflection medium on the printing layer to form a nano coating;
and (3) coating UV ink on the surface of the nano coating to form a UV protective layer.
2. The method for manufacturing the anti-copying laser anti-counterfeiting film according to claim 1, further comprising: and adding a back adhesive layer on the UV protective layer to form the copy-proof laser anti-counterfeiting film.
3. The method for manufacturing the anti-copying laser anti-counterfeiting film according to claim 1, wherein a cured coating and a micro-nano grating structure pattern are arranged on the surface of a substrate layer to form an image layer, and the method specifically comprises the following steps: and arranging an undercoat layer on the surface of the substrate layer, and arranging a cured coating and a micro-nano grating structure pattern on the surface of the undercoat layer to form an image layer.
4. The method for manufacturing the anti-copying laser anti-counterfeiting film according to claim 3, wherein the bottom coating is an acrylic acid system or polyurethane system bottom coating, and the thickness is 0.5-5 microns.
5. The method for manufacturing the anti-copying laser anti-counterfeiting film according to claim 1, wherein the surface of the substrate layer is provided with a curing coating and a micro-nano grating structure pattern to form an image layer, wherein the substrate layer is made of any one or more than two of PVC, PP, PETG, PC, ABS materials and has a thickness of 12-400 micrometers.
6. The method for manufacturing the anti-copying laser anti-counterfeiting film according to claim 1, wherein the image layer is provided with a specific pattern to form a printing layer, and the printing layer is suitable for one or more printing modes of gravure printing, offset printing, silk screen printing, laser printing and ink-jet printing.
7. The method for manufacturing the anti-copying laser anti-counterfeiting film according to claim 1, wherein a high-reflection medium is additionally arranged on the printing layer to form a nano coating, and the method specifically comprises the following steps: and (3) coating a functional coating on the printing layer by adopting PVD, CVD and nano coating methods to form a nano coating with the thickness of 200-500 angstroms, wherein the nano coating is a high-reflection metal or metal compound or nano composite material thereof.
8. The method for manufacturing the anti-copying laser anti-counterfeiting film according to claim 1, wherein the method for manufacturing the anti-copying laser anti-counterfeiting film is characterized in that UV ink is additionally coated on the surface of the nano coating to form a UV protection layer, and specifically comprises the following steps: UV ink using urethane acrylate and hydroxy acrylic resin is coated on the nano-coating and UV lamp irradiation is performed to cure the ink to form a UV protection layer with a thickness of 0.5-10 micrometers.
9. The anti-copying laser anti-counterfeiting film is characterized in that the anti-copying laser anti-counterfeiting film is manufactured according to the method of claim 1, and a base material layer, an image layer, a printing layer, a nano coating, a UV protective layer and a back adhesive layer are sequentially arranged from bottom to top.
10. The anti-copying laser anti-counterfeiting film according to claim 9, wherein a bottom coating is further arranged between the substrate layer and the image layer, and the thickness of the bottom coating is 0.5-5 microns.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2755709Y (en) * | 2004-11-11 | 2006-02-01 | 赖仁寿 | Multi-layer laminated anti-fogery label |
| WO2016058477A2 (en) * | 2014-10-17 | 2016-04-21 | 苏州华源包装股份有限公司 | Anti-counterfeiting film, preparation technique and coating technique for anti-counterfeiting film |
| CN211662885U (en) * | 2019-10-21 | 2020-10-13 | 苏州苏大维格科技集团股份有限公司 | Thermoprinting film, transfer film, composite paper and transfer paper |
| CN111923547A (en) * | 2020-09-15 | 2020-11-13 | 上海宏盾防伪材料有限公司 | Diaphragm with micro-nano grating structure and manufacturing method thereof |
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