CN113150710A - Dielectric film electrochemical aluminum for decoration and anti-counterfeiting purposes and preparation method thereof - Google Patents
Dielectric film electrochemical aluminum for decoration and anti-counterfeiting purposes and preparation method thereof Download PDFInfo
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- CN113150710A CN113150710A CN202110437417.4A CN202110437417A CN113150710A CN 113150710 A CN113150710 A CN 113150710A CN 202110437417 A CN202110437417 A CN 202110437417A CN 113150710 A CN113150710 A CN 113150710A
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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
- C09J7/28—Metal sheet
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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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- 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
- C09J2400/00—Presence of inorganic and organic materials
- C09J2400/10—Presence of inorganic materials
- C09J2400/16—Metal
- C09J2400/163—Metal 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
- C09J2433/00—Presence of (meth)acrylic polymer
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Abstract
The invention provides a dielectric film electrochemical aluminum for decoration and anti-counterfeiting purposes and a preparation method thereof, wherein the preparation method comprises the following steps: arranging a PET film preparation base film layer; coating the lower surface of the base film layer to generate a release layer; coating the lower surface of the release layer to generate an information layer; carrying out mould pressing laser on the information layer, and plating zinc sulfide by using a vacuum aluminum plating machine to form a medium layer; and directly coating a layer of hot-melt acrylic resin on the lower surface of the dielectric layer by using a coating machine to form a back glue layer. The dielectric film alumite prepared by the method has good anti-counterfeiting performance and decorative effect, reduces the production cost of enterprises, and is beneficial to maintaining the legal rights and interests of the enterprises and consumers.
Description
Technical Field
The invention relates to the field of electrochemical aluminum production application, in particular to dielectric film electrochemical aluminum for decoration and anti-counterfeiting purposes and a preparation method thereof.
Background
The alumite technology is widely adopted in post-processing decoration application of trademarks, and the using method of the alumite technology is roughly divided into common hot stamping and positioning hot stamping; wherein, the positioning thermoprinting is generally a holographic pattern, and the positioning thermoprinting has certain anti-counterfeiting performance; the common hot stamping electrochemical aluminum is usually common gold, common silver, laser gold and conventional dielectric film electrochemical aluminum, and the common hot stamping electrochemical aluminum has no special use effect in the use technology.
But in the face of the commodities with the same category and image and the same truth and falseness in the current market, most merchants can adopt an anti-counterfeiting technology to ensure the authenticity of the products of the merchants, but the common hot stamping alumite has no holographic patterns, 3D effect, three-dimensional embossment, micro-shrinkage and perspective anti-counterfeiting effect, consumers only rely on identifying the bright stained paper posted on the surfaces of the commodities to identify the commodities, along with the enhancement of the process of counterfeiters, the use of the common stained paper is difficult to distinguish the genuine products from other counterfeit products, the consumers are seriously caused to distinguish the genuine products from the counterfeit products, the legal interests of the consumers are damaged, the legal income of enterprises and the stability of the commodities circulating in the society are damaged.
If a large amount of positioning hot stamping technologies with holographic patterns are adopted, the production cost can be obviously improved, the normal income and the product sales volume of enterprises are influenced, and the phenomenon of article shortage can be caused.
Disclosure of Invention
The invention aims to provide a dielectric film electrochemical aluminum for decoration and anti-counterfeiting purposes and a preparation method thereof aiming at the defects in the prior art. The invention is realized by the following technical scheme:
a preparation method of dielectric film electrochemical aluminum for decoration and anti-counterfeiting purposes comprises the following steps:
s1, arranging a PET film to prepare a base film layer;
s2, coating the lower surface of the base film layer to generate a release layer;
s3, coating the lower surface of the release layer to generate an information layer;
s4, performing mould pressing and laser on the information layer, and plating zinc sulfide by using a vacuum aluminum plating machine to form a dielectric layer;
and S5, directly coating a layer of hot-melt acrylic resin on the lower surface of the dielectric layer by using a coating machine to form a back glue layer.
Preferably, the specific implementation steps for preparing the base film layer in step S1 are as follows: a roll of PET film with a width of 660mm was prepared, the roll length was controlled to be within 3600m, and the entire roll of PET film was set as a base film layer.
Preferably, the specific implementation manner of step S2 is: coating a release layer on the whole roll of base film layer on a coating machine in a manner of gravure full-plate coating, wherein the coating material is coated with water-based wax with solid content of 2-3%, and the coating weight is 5g/m2。
Preferably, the specific implementation manner of step S3 is: coating the information layer on the lower surface of the release layer, wherein the coating mode adopts a coating mode of a flower-like pattern intaglio plate; the intaglio plate for coating is manufactured into a ball flower pattern intaglio plate, the ball flower pattern intaglio plate is used for coating the information layer, in the coating process, all black areas except the ball flower pattern need to be coated with heat-shrinkable acrylic resin, and the heat-shrinkable acrylic resin is not coated on the ball flower pattern part, so that the information layer only appears on all black areas except the ball flower pattern.
Preferably, the specific implementation manner of step S4 is: firstly, carrying out mould pressing laser on an information layer, wherein the mould pressing laser is to heat a circular nickel plate carved with a laser effect and carry out mould pressing under the action of a mould pressing machine, so that laser information on the circular nickel plate is transferred onto the information layer at high temperature, a laser effect surface with hollow flower-like pattern lines is formed on the information layer, and then zinc sulfide is plated on the information layer with the hollow flower-like pattern lines by adopting a vacuum aluminum plating machine, so that a dielectric layer is formed.
Preferably, the thickness of the PET film is set to be 18 μm, so as to improve the strength of the dielectric film electrochemical aluminum.
The dielectric film electrochemical aluminum manufactured by the preparation method comprises a base film layer, wherein a release layer, an information layer, a dielectric layer and a back glue layer are sequentially arranged below the base film layer.
Preferably, the base film layer is a PET film with the thickness of 16-21 μm; the release layer is made of water-based wax; the information layer is made of heat-shrinkable acrylic resin; the dielectric layer is plated with zinc sulfide by a vacuum aluminum plating machine; the back glue layer is a hot-melt acrylic resin layer.
Preferably, the thickness of the PET film is set to be 18 μm, so as to improve the strength of the dielectric film electrochemical aluminum.
Preferably, the aqueous wax has a solids content of 2 to 3%.
The invention has the beneficial effects that:
the invention adopts a specific coating plate in the manufacturing process of the electrochemical aluminum, engraves certain information on the coating plate, coats the information on the plate in the dielectric film electrochemical aluminum in the process of coating the electrochemical aluminum to ensure that the dielectric film electrochemical aluminum has certain information, and obtains a pattern with decorative and anti-counterfeiting effects by combining the application of a printing process; through the combination of patterns, the existing common hot stamping alumite also has the anti-counterfeiting effect, the requirements of enterprise production are met, the legal rights and interests of consumers and enterprises are maintained, and the production cost of the enterprises is reduced. The dielectric film alumite can be used for gold stamping on a surface printed with a solid single color and can also be overprinted with a printed pattern for gold stamping to obtain a special pattern with an anti-counterfeiting effect in the application of a gold stamping process.
Drawings
FIG. 1 is a schematic diagram of the structure of the dielectric film anodized aluminum of the present invention;
FIG. 2 is a schematic view of an expanded view of the intaglio plate for a flower like pattern according to the present invention;
FIG. 3 is a schematic view of a part of the apparatus of the coater;
FIG. 4 is a schematic structural diagram of a stamping apparatus for dielectric film alumite application according to the present invention.
In the figure: 1. a base film layer; 2. a release layer; 3. an information layer; 4. a dielectric layer; 5. a back glue layer; 6. an imprint device; 7. a coating tank; 8. embossing plate with a circular pattern; 9. gold stamping plate; 10. a bronzing plate locking device; 11. a honeycomb panel; 12. paper; 13. bottom plate of gilding press.
Detailed Description
The invention will be further described with reference to the accompanying drawings and the detailed description below:
example 1:
as shown in fig. 1 to 3, a preparation method of dielectric film electrochemical aluminum for decoration and anti-counterfeiting purpose comprises the following steps:
s1, arranging a PET film preparation base film layer 1;
the specific implementation steps for preparing the base film layer 1 in step S1 are as follows: a roll of PET film with the width of 660mm is prepared, the length of the roll is controlled within 3600m, the thickness of the PET film is set to be 18 mu m, the strength of the dielectric film electrochemical aluminum is improved, and the whole roll of PET film is set to be a base film layer 1.
S2, coating the lower surface of the base film layer 1 to generate a release layer 2;
the specific implementation manner of the step S2 is as follows: coating a release layer 2 on the whole roll of base film layer 1 on a coating machine in a manner of gravure full-plate coating, wherein the coating material is coated with water-based wax with solid content of 2-3%, and the coating weight is 5g/m2。
S3, coating the lower surface of the release layer 2 to generate an information layer 3;
the specific implementation manner of the step S3 is as follows: coating the information layer 3 on the lower surface of the release layer 2 in a way of coating the embossing pattern intaglio plate 8; namely, the intaglio printing plate for coating is made into a ball flower pattern intaglio printing plate 8, and the information layer 3 is coated by using the ball flower pattern intaglio printing plate 8, in the coating process, all black areas except the ball flower pattern need to be coated with heat-shrinkable acrylic resin, and the heat-shrinkable acrylic resin is not coated on the ball flower pattern part, so that the information layer only appears on all black areas except the ball flower pattern.
In particular, for better understanding of the coating principle of step S3, the following detailed technical explanation is made:
as shown in fig. 3, which is a partial device structure of a coating machine, by installing the embossing pattern intaglio plate 8 on the coating machine, filling the coating tank 7 with a heat-shrinkable acrylic resin, and then coating the release layer 2, the information layer 3 is coated on the release layer 2 by the imprinting device 6, and all black areas except the embossing pattern are coated with the heat-shrinkable acrylic resin to form the information layer 3, while the embossing pattern portion is not coated with the heat-shrinkable acrylic resin, and thus the information layer 3 cannot be formed.
S4, performing mould pressing and laser on the information layer 3, and plating zinc sulfide by using a vacuum aluminum plating machine to form a dielectric layer 4;
the specific implementation manner of the step S4 is as follows: firstly, carrying out mould pressing laser on an information layer 3, wherein the mould pressing laser is to heat a circular nickel plate carved with a laser effect and carry out mould pressing under the action of a mould pressing machine, so that laser information on the circular nickel plate is transferred onto the information layer 3 at high temperature, a laser effect surface with hollow flower-like pattern lines is formed on the information layer 3, and then the information layer 3 with the hollow flower-like pattern lines is plated with zinc sulfide by a vacuum aluminum plating machine, so that a dielectric layer 4 is formed.
S5, coating a layer of hot-melt acrylic resin directly on the lower surface of the dielectric layer 4 by using a coater to form the backside adhesive layer 5.
Example 2:
as shown in fig. 1, the dielectric film electrochemical aluminum manufactured by the preparation method described in embodiment 1 comprises a base film layer 1, and a release layer 2, an information layer 3, a dielectric layer 4 and a back glue layer 5 are sequentially arranged below the base film layer 1 to form the dielectric film electrochemical aluminum, wherein the base film layer 1 is a PET film with a thickness of 16-21 μm, and the thickness of the PET film is preferably 18 μm in order to improve the strength of the dielectric film electrochemical aluminum and prevent the dielectric film electrochemical aluminum from deforming during stretching; the release layer 2 is composed of water-based wax, wherein the solid content of the water-based wax is 2-3%, and the release layer is mainly used for separating the base film layer 1 by heating in the hot stamping process; the component of the information layer 3 is heat-shrinkable acrylic resin which is mainly used for coloring or molding laser information of electrochemical aluminum; the dielectric layer 4 is plated with zinc sulfide by a vacuum aluminum plating machine; the back glue layer 5 is a layer of hot-melt acrylic resin, and the back glue layer 5 can have the function of bonding the surface of paper during gold stamping.
The manufacturing standard of the dielectric film electrochemical aluminum produced by the invention can be a roll with the width of 0.61m and the length of 120m, and a user can cut different widths according to different products for use.
The hot stamping principle of the dielectric film alumite comprises the following steps:
as shown in fig. 4, a gilding plate 9 is fixed on a honeycomb plate 11 through a gilding plate locking device 10, then the dielectric film alumite of the invention is placed between the gilding plate 9 and paper 12 through an unreeling device of a gilding press, when in use, the honeycomb plate 11 can be heated, and the temperature is transferred to the gilding plate 9, and the gilding plate 9 is made of high-purity copper and has good heat-conducting property; when the dielectric film alumite is stopped between the paper 12 and the gold stamping plate 9, the honeycomb plate 11 moves downwards, the dielectric film alumite under the gold stamping plate 9 is hot stamped on the surface of the paper 12 under the temperature and the pressure of the gold stamping plate 9, and the pattern on the gold stamping plate 9 is printed on the alumite, so that the whole gold stamping process is completed.
In order to further develop the dielectric film electrochemical aluminum of the invention, the application process of the dielectric film electrochemical aluminum of the invention combined with the printing process is explained as follows:
1. selecting a pattern with anti-counterfeiting and decorative effects;
2. the pattern is divided into cyan, magenta, yellow and black and white by using a printing principle, 4 PS plates for printing are output on CTP plate making equipment, and the pattern is printed on the surface of the paper by 4 PS plates in a standard four-color mode on a printing machine;
3. printing four-color plates on a printing machine in register by using the printing machine with more than 4 colors and an oiling device, printing colorless fluorescent anti-counterfeiting UV ink on a 5 th color group by using a yellow plate, and finally coating hot stamping water-based gloss oil on the surface to protect the surface of paper to obtain a synthetic pattern on the paper;
4. manufacturing a gilding plate, using the dielectric film alumite to thermoprint the patterns, and paying attention to the complete coincidence of the overprint lines on the gilding plate and the overprint lines for printing the patterns during thermoprinting so as to ensure that the alumite of the dielectric film plays a role in decoration;
5. through the steps, the pattern with the fluorescent anti-counterfeiting information and the invisible anti-counterfeiting information of the dielectric film decorative strip is obtained, the pattern can highlight the laser effect under the decoration of the dielectric film, the laser effect can see the anti-counterfeiting flower-like pattern from a certain inclined angle, and the pattern of a yellow color plate can be seen under the ultraviolet light of 320-365 nm, so that the triple anti-counterfeiting effect is achieved.
Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes should fall within the scope of the claims of the present invention.
Claims (10)
1. A preparation method of dielectric film electrochemical aluminum for decoration and anti-counterfeiting purposes is characterized by comprising the following steps:
s1, arranging a PET film to prepare a base film layer;
s2, coating the lower surface of the base film layer to generate a release layer;
s3, coating the lower surface of the release layer to generate an information layer;
s4, performing mould pressing and laser on the information layer, and plating zinc sulfide by using a vacuum aluminum plating machine to form a dielectric layer;
and S5, directly coating a layer of hot-melt acrylic resin on the lower surface of the dielectric layer by using a coating machine to form a back glue layer.
2. The method for preparing the dielectric film electrochemical aluminum for decoration and anti-counterfeiting purpose as claimed in claim 1, wherein the specific implementation steps for preparing the base film layer in the step S1 are as follows: a roll of PET film with a width of 660mm was prepared, the roll length was controlled to be within 3600m, and the entire roll of PET film was set as a base film layer.
3. The method for preparing the dielectric film electrochemical aluminum for decoration and anti-counterfeiting purpose according to claim 1, wherein the specific implementation manner of the step S2 is as follows: coating a release layer on the whole roll of base film layer on a coating machine in a manner of gravure full-plate coating, wherein the coating material is coated with water-based wax with solid content of 2-3%, and the coating weight is 5g/m2。
4. The method for preparing the dielectric film electrochemical aluminum for decoration and anti-counterfeiting purpose according to claim 1, wherein the specific implementation manner of the step S3 is as follows: coating the information layer on the lower surface of the release layer, wherein the coating mode adopts a coating mode of a flower-like pattern intaglio plate; the intaglio plate for coating is manufactured into a ball flower pattern intaglio plate, the ball flower pattern intaglio plate is used for coating the information layer, in the coating process, all black areas except the ball flower pattern need to be coated with heat-shrinkable acrylic resin, and the heat-shrinkable acrylic resin is not coated on the ball flower pattern part, so that the information layer only appears on all black areas except the ball flower pattern.
5. The method for preparing the dielectric film electrochemical aluminum for decoration and anti-counterfeiting purpose according to claim 1, wherein the specific implementation manner of the step S4 is as follows: firstly, carrying out mould pressing laser on an information layer, wherein the mould pressing laser is to heat a circular nickel plate carved with a laser effect and carry out mould pressing under the action of a mould pressing machine, so that laser information on the circular nickel plate is transferred onto the information layer at high temperature, a laser effect surface with hollow flower-like pattern lines is formed on the information layer, and then zinc sulfide is plated on the information layer with the hollow flower-like pattern lines by adopting a vacuum aluminum plating machine, so that a dielectric layer is formed.
6. The method for preparing the dielectric film alumite for decoration and anti-counterfeiting as claimed in claim 2, wherein the thickness of the PET film is set to be 18 μm, so as to improve the strength of the dielectric film alumite.
7. The dielectric film alumite manufactured by the manufacturing method according to any one of claims 1 to 6, comprising a base film layer, under which a release layer, an information layer, a dielectric layer and a back adhesive layer are sequentially disposed.
8. The dielectric film alumite of claim 7, wherein the base film layer is a PET film having a thickness of 16 to 21 μm; the release layer is made of water-based wax; the information layer is made of heat-shrinkable acrylic resin; the dielectric layer is plated with zinc sulfide by a vacuum aluminum plating machine; the back glue layer is a hot-melt acrylic resin layer.
9. The dielectric film alumite of claim 8, wherein the PET film thickness is set to 18 μm for improving the strength of the dielectric film alumite.
10. The dielectric film alumite of claim 9 wherein the aqueous wax has a solids content of 2-3%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110437417.4A CN113150710A (en) | 2021-04-22 | 2021-04-22 | Dielectric film electrochemical aluminum for decoration and anti-counterfeiting purposes and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110437417.4A CN113150710A (en) | 2021-04-22 | 2021-04-22 | Dielectric film electrochemical aluminum for decoration and anti-counterfeiting purposes and preparation method thereof |
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