Holographic pattern and printed overprint electrochemical aluminum and method of making same

Abstract

This invention belongs to the field of electroplated aluminum, specifically relating to a holographic pattern and overprinted electroplated aluminum and its manufacturing method. The electroplated aluminum, from bottom to top, consists of a PET base film layer, a release coating, an imaging coating, a holographic image layer, a transparent dielectric layer, a connecting coating, a colored ink layer, an aluminum plating layer, and an adhesive layer. The transparent dielectric layer is a zinc sulfide dielectric layer. The connecting coating is applied across the entire surface to connect the transparent dielectric layer and the colored ink layer. The manufacturing method includes the following steps: 1) applying the release coating across the entire surface; 2) applying the imaging coating across the entire surface; 3) imprinting the holographic image and a cursor recognition block; 4) dielectric plating treatment; 5) applying the connecting coating; 6) printing the colored ink layer, achieving registration between the colored ink layer image and the holographic image through the cursor recognition block; 7) vacuum aluminum plating; 8) applying the adhesive; and 9) slitting. This invention has the advantages of good product appearance and good anti-counterfeiting performance.

Description

Technical Field

[0001] This invention belongs to the field of electroplated aluminum, specifically relating to a holographic pattern and a printing overlay electroplated aluminum and its manufacturing method. Background Technology

[0002] Electroplated aluminum hot stamping foil (commonly known as hot stamping foil) is a material that transfers metallic luster or colored patterns to the surface of a substrate through a hot pressing process. It is widely used in packaging, printing, labeling, gifts and other fields. Its core advantages are mainly reflected in the following aspects: high quality and decorativeness, excellent adhesion and durability, efficient production and process flexibility.

[0003] Despite its many advantages, electroplated aluminum products often cannot achieve the desired holographic effect due to limitations in layer structure and manufacturing process. This is because the processing steps for electroplated aluminum products typically involve molding first, followed by printing ink on the unplated foil strip, which fills in the original holographic grating, resulting in the loss of the holographic effect. Therefore, this process has certain application limitations. Summary of the Invention

[0004] The purpose of this patent is to provide a method for overlaying holographic patterns and printing on electroplated aluminum, which can achieve the effect of overlaying holographic patterns and printing effects on electroplated aluminum.

[0005] This invention is achieved through the following technical solution: That is, a holographic pattern and printed overlay electroplated aluminum, characterized in that, from bottom to top, a PET base film layer, a release coating, an imaging coating, a holographic image layer, a transparent dielectric layer, a connecting coating, a color ink layer, an aluminum plating layer and an adhesive layer are arranged in sequence. The transparent dielectric layer is a zinc sulfide dielectric layer, and the connecting coating is fully coated to connect the transparent dielectric layer and the color ink layer.

[0006] Preferably, the PET transfer film of the present invention is a double-sided non-corona-electrode PET polyester film with a thickness of 15-20 μm, and a tensile strength MD≥210MPa and TD≥220MPa.

[0007] Preferably, the release coating of the present invention is a commercially available organic wax water-based emulsion with low release force and excellent edge-cutting performance. It is applied to a full-coverage double-sided non-corona-electrode PET film using a gravure coating method.

[0008] Preferably, the imaging coating of the present invention is a commercially available molding coating with mature existing technology (preferably Shanghai Chengying BS-0325C or Shantou Changfeng DL-200AD). The main resin is acrylic resin, which has good fluidity, molding imaging performance and edge cutting properties. It adopts a gravure coating method, which can spread well on the substrate with the release coating, can mold imaging without shrinkage, and will not stick when rolled up. It is a key layer structure for molding imaging of electroplated aluminum.

[0009] Preferably, the zinc sulfide dielectric layer of the present invention is prepared by vacuum evaporation. After zinc sulfide evaporation, it is transparent and will not cause any obstruction. At the same time, it can enhance the brightness of the holographic image. More importantly, it can protect the holographic effect and ensure that the holographic effect will not be filled in by the subsequent printed ink layer, thus preventing the loss of the holographic effect.

[0010] Preferably, the raw materials and their weight percentages of the bonding coating of the present invention are as follows: The solid content of 40% organofluorine silicone modified hydroxyl acrylic-polyurethane composite dispersion is 55-65%. Hydrophilic HDI trimer 8-12%; Adhesion promoter 3-5%; Potassium salt of polyacrylic acid copolymer 0.5-1.0%; 3-5% nano-silica treated with silane; Polyether-modified organosilicon 0.2-0.5%; Polyether-modified non-silicone surfactant 0.1-0.3%; Nonionic polyurethane associative thickener 0.1-0.3%; Deionized water: 20.1%-21.4%; The adhesion promoter is a mixture of chlorinated polypropylene resin liquid with a solid content of 25% and silane coupling agent (KH-560) in a mass ratio of 1:1.

[0011] The bonding coating is a water-based emulsion, a two-component system, exhibiting excellent adhesion to both the ZnS dielectric layer and the color ink layer, with outstanding adhesion stability at instantaneous high temperatures. It acts as a bridge between the dielectric and color ink layers within the entire system.

[0012] Preferably, the color ink layer is a commercially available electronic ink with mature existing technology, which has excellent bonding performance with the bonding coating. It is UV-cured and dried, and printing does not require fabrication. It can be transferred to the substrate simply by using a rubber blanket, which can realize variable printing.

[0013] Preferably, the aluminum plating layer thickness is 300-450 angstroms.

[0014] The aluminum plating layer is produced by vacuum evaporation. The purpose of the aluminum plating layer is to give the entire electroplated aluminum a metallic luster, making the appearance more dazzling and effectively supporting the appearance.

[0015] Preferably, the adhesive backing layer is a two-component polyurethane adhesive with 1.7% fumed silica added to provide edge cutting and anti-reverse adhesion properties. The solid content is between 25% and 35%, and it is halogen-free. When heated, it melts and becomes sticky, allowing all the coatings of the electroplated aluminum foil to be transferred onto the paper to be heat-pressed.

[0016] A method for fabricating holographic patterns and overprinted electroplated aluminum foil, comprising the following steps: 1) Apply a release coating to the entire PET base film layer using a 200-mesh electro-engraved plate, with a wet coating amount of 5.0 g / m². 2 The solid content of the coating is 1.37%, the coating temperature is 90℃-120℃-145℃-150℃-90℃, the machine speed is 80m / min, the film surface temperature is 99℃, and a sweeping roller is used after coating at a speed of 80m / min for winding. 2) Apply an imaging coating to the entire surface of the release coating. The solids content of the coating is 21.5%, using a 160-mesh ceramic anilox roller, with a wet coating weight of 7 g / m². 2 The coating temperature is 90℃-110℃-150℃-150℃-90℃, the machine speed is 80m / min, and the film surface temperature is 99℃. 3) After the film material prepared in step 2) is subjected to high temperature and high pressure, the holographic image is imprinted onto the imaging coating using a holographic platinum relief plate. At the same time, a cursor recognition block is printed online using a gravure plate. The size of the cursor recognition block is 10*10mm, the molding temperature is 175℃, and the roller pressure is 35kg. 4) Apply a dielectric coating to the molded surface, then perform vapor deposition in a vacuum coating machine, placing zinc sulfide on a molybdenum sheet, and then... -1 -10 -2 Under vacuum conditions of Pa, it is heated to about 650°C and vaporized, and then cooled and adhered to the corona surface of the thin film to form a transparent dielectric layer. 5) Coating and bonding layer, with a solids content of 18.5% on the machine, using a 160-mesh ceramic anilox roller, and a wet adhesive weight of 9g / m². 2 The coating temperature is 90℃-120℃-120℃-120℃-70℃, the machine speed is 80m / min, the film surface temperature is 77℃, and the coating is applied to the entire surface. 6) Print the color ink layer on a digital printing press. During the color ink printing, track the cursor recognition block left in step 3) and use CMYK halftone printing to achieve registration between the color ink layer image and the holographic image. 7) Apply a dense aluminum coating to the molded surface, and perform vapor deposition in a vacuum aluminum plating machine, depositing high-purity aluminum wire at 10... -3 -10 -4Under vacuum conditions of Pa, it is heated to about 1700℃ to vaporize, and then cooled and adhered to the corona surface of the thin film to form an aluminum plating layer. 8) Apply backing adhesive: Add 1.7% fumed silica to the two-component polyurethane backing adhesive. Coating temperature: 90℃-100℃-120℃-120℃-90℃; machine speed: 80m / min; film surface temperature: 82℃; on-machine solids content: 18%; dry coating weight: 1.5g / m². 2 ; 9) Slitting: The electroplated aluminum produced in step 8) is divided into trays at a speed of 135 m / min.

[0017] This invention provides a connecting coating between the transparent medium layer and the color ink layer, which solves the problem of the bonding force between the transparent medium layer and the color ink layer, enabling the holographic pattern to overlap with the printed pattern and to be transferred to the surface of the object to be heat-pressed with full effect.

[0018] This invention boasts advantages such as superior product appearance and excellent anti-counterfeiting performance. While maintaining the holographic effect of the electroplated aluminum foil, it incorporates a printed pattern that matches the registration details. The holographic effect is presented in a more stunning manner on the meticulously designed printed pattern. Furthermore, after hot stamping, the appearance of the holographic foil remains intact, with no loss of holographic brightness or color. This overcomes the shortcomings of hot stamping materials in achieving holographic effects and the inability of color printing to overlap. A printed product with a holographic registration effect can be obtained solely through hot stamping, making it difficult to counterfeit and thus enhancing its anti-counterfeiting capabilities. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the layer structure of the electroplated aluminum of the present invention.

[0020] As shown in the figure: 1. PET base film layer; 2. Release coating; 3. Imaging coating; 4. Holographic image layer; 5. Transparent dielectric layer; 6. Connecting coating; 7. Color ink layer; 8. Aluminum plating layer; 9. Adhesive backing layer. Detailed Implementation

[0021] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore merely examples and should not be used to limit the scope of protection of the present invention. It should be noted that, unless otherwise stated, the technical or scientific terms used in this application should have the ordinary meaning understood by those skilled in the art to which this invention pertains. Example 1

[0022] like Figure 1As shown: The electroplated aluminum is arranged from bottom to top as follows: PET base film layer 1, release coating layer 2, imaging coating layer 3, holographic image layer 4, transparent dielectric layer 5, connecting coating layer 6, color ink layer 7, aluminum plating layer 8, and adhesive layer 9.

[0023] Among them, the PET base film layer 1 is a double-sided non-corona film. The recommended brand is the HP model from DuPont Foshan, with a thickness of 15μm, a double-sided corona value of 38dyn, a tensile strength MD≥210MPa, TD≥220MPa, and a 3-inch paper core winding.

[0024] The release coating 2 uses Foshan Shuneng Chemical 5017 water-based wax coating, with a wet coating weight of 5.0 g / m². 2 The solids content is 1.37%. 5017 water-based wax coating is an organic wax emulsion with low release force and excellent edge-cutting performance. It is applied to a full-coverage double-sided non-corona-electrode PET film using gravure coating.

[0025] The imaging coating 3 is a commercially available and mature molding coating. Its function is to apply the imaging coating to the entire surface of the release layer, and then, through the molding process, imprint the image on the holographic nickel plate onto the imaging coating, so that the pattern on the holographic nickel plate is mirrored on the coating.

[0026] Imaging coating 3 has a solids content of 21.5%, uses a 160-mesh ceramic anilox roller, and has a wet coating weight of 7 g / m². 2 The coating temperature is 90℃-110℃-150℃-150℃-90℃, the machine speed is 80m / min, and the film surface temperature is 99℃.

[0027] The holographic image layer 4 is formed by pressing the holographic image onto the imaging coating 3 after it has been subjected to high temperature and high pressure using a positioning platinum relief holographic plate, so that the pattern on the holographic nickel plate is mirrored on the imaging coating 3.

[0028] The transparent dielectric layer 5 is achieved in a vacuum coating machine. Under vacuum conditions, 98% pure zinc sulfide (ZnS) is heated directly from a solid state to a sublimation state by heating a molybdenum sheet, leaving a transparent dielectric coating on the film. The transparent dielectric layer 5 does not cause obstruction and can enhance the brightness of the holographic image. More importantly, it protects the holographic effect, ensuring that the holographic effect will not be lost due to the subsequent color ink layer 7 filling in the holographic grating.

[0029] The purpose of the connecting coating 6 is to tightly bond the color ink layer 7 and the transparent medium layer 5, overcome the drawback of layer separation after hot stamping, and have excellent edge cutting performance to ensure the edge cutting performance of hot stamping.

[0030] The raw materials and their weight percentages are as follows: The solid content of the organofluorine-silicone modified hydroxyl acrylic-polyurethane composite dispersion is 65%. 8% hydrophilic HDI trimer; Adhesion promoter 3%; 0.5% potassium salt of polyacrylic acid copolymer; 3% of nano-silica treated with silane; Polyether-modified organosilicon 0.2%; 0.1% polyether-modified non-silicone surfactant; 0.1% nonionic polyurethane associative thickener; Deionized water 20.1%; The hydrophilic HDI trimer is Bayer 3100; The adhesion promoter is a 1:1 mixture of chlorinated polypropylene resin liquid with a solid content of 25% and silane coupling agent (KH-560).

[0031] The main resin in the above formulation is a 40% solid content organofluorine silicone modified hydroxyl acrylic-polyurethane composite dispersion, which combines the flexibility of polyurethane and the weather resistance of acrylic, while organofluorine silicone improves the surface smoothness. The curing agent is a hydrophilic HDI trimer, which provides low-temperature crosslinking activity and reacts with hydroxyl groups to form a dense network structure; In adhesion promoters, chlorinated polypropylene enhances the bonding force with plastic substrates, while silane coupling agents improve the chemical bonding with zinc sulfide. The wetting and dispersing agent is a potassium salt of polyacrylic acid copolymer, which improves the wettability of the coating and prevents flocculation; The functional filler is silane-treated nano-silica, which improves the coating hardness and scratch resistance; The leveling agent is a polyether-modified silicone, which is used to eliminate surface defects; The defoamer is a polyether-modified non-silicone surfactant used to suppress the generation of bubbles during production and construction. The thickener is a nonionic polyurethane associative thickener, which is used to adjust the application viscosity.

[0032] The color ink layer 7 uses electronic ink and is printed using a digital printing machine. By tracking the color marks reserved during molding, it is registered with the holographic pattern through overprinting. The registration accuracy error needs to be controlled within ±0.5mm. The color ink layer 7 is combined with the preset holographic image layer 4, which can present a more beautiful printing effect when viewed from the PET film surface.

[0033] The function of the aluminum plating layer 8 is to protect the holographic pattern and give the product a strong metallic luster. It is deposited by evaporation boat using aluminum wire with a purity of 99.9%. The aluminum is sublimated directly onto the thin film under vacuum to form a dense aluminum plating layer with a thickness of 200-300 angstroms.

[0034] The adhesive layer 9 uses commercially available two-component polyurethane adhesive with 1.7% fumed silica added to improve edge cutting performance and adjust heat transfer ventilation.

[0035] The coating temperature for adhesive layer 9 is 90℃-100℃-120℃-120℃-90℃, the machine speed is 80m / min, and the film surface temperature is 82℃. The solids content is 18%, and the dry coating weight is 1.5g / m². 2 .

[0036] The method for manufacturing electroplated aluminum in this embodiment includes the following steps: Step 1: Apply release coating 2 to the entire PET base film layer 1. Release coating 2 is made of 5017 water-based wax, using a 200-mesh electro-engraving plate, with a wet coating amount of 5.0 g / m². 2 The solid content of the coating is 1.37%, the coating temperature is 90℃-120℃-145℃-150℃-90℃, the machine speed is 80m / min, the film surface temperature is 99℃, a sweeping roller is used after coating, the sweeping roller speed is 80m / min, and the 3-inch paper core is wound up.

[0037] Step 2: Apply imaging coating 3 to the entire surface of release coating 2. The solids content of the coating is 21.5%, using a 160-mesh ceramic anilox roller, with a wet coating amount of 7 g / m². 2 The coating temperature is 90℃-110℃-150℃-150℃-90℃, the machine speed is 80m / min, and the film surface temperature is 99℃.

[0038] Step 3: In-line black gravure printing of the holographic pattern. After the film material prepared in Step 2 is subjected to high temperature and high pressure, the holographic image is pressed onto the imaging coating 3 using a holographic platinum relief plate, so that the pattern on the holographic nickel plate is mirrored on the coating. At the same time, a black cursor recognition block is printed in-line using gravure. The size of the cursor recognition block is 10*10mm. The molding temperature is 175℃, the roller pressure is 35kg, and the printing ink is Weihai Sanjin solvent black P50 ink, diluted 50%.

[0039] Step 4, transparent dielectric layer 5, is vapor-deposited. A dielectric coating treatment is applied to the molded surface. The zinc sulfide block dimensions are 55mm*22mm*25mm. Using Zhejiang Guangming brand materials, vapor deposition is performed in a vacuum coating machine. The high-purity dielectric material block is placed on a molybdenum sheet, and then... -1 -10 -2 Under vacuum conditions of Pa, it is heated to about 650°C and vaporized. After cooling, it adheres to the corona surface of the thin film to form a transparent dielectric layer 5 with a thickness of 0.04 OD.

[0040] Step 5, apply bonding coating 6, with a solids content of 18.5%, using a 160-mesh ceramic anilox roller, and a wet adhesive weight of 9g / m². 2The coating temperature is 90℃-120℃-120℃-120℃-70℃, the machine speed is 80m / min, the film surface temperature is 77℃, and the coating is applied to the entire surface.

[0041] Step 6: Print the color ink layer 7 on a digital printing press. The color ink printing tracks the black mark left in step 3. Use CMYK halftone printing to achieve registration between the color ink layer image and the holographic image, with a registration accuracy of ±0.05mm.

[0042] Step 7: Aluminizing. A dense aluminum coating is applied to the molded surface. High-purity aluminum wire with a diameter of 1.5mm and an alumina block size of 75mm*75mm*50mm are used. Zhejiang Guangming brand aluminum is employed, and the high-purity aluminum wire is vapor-deposited in a vacuum aluminum plating machine at 10°C. -3 -10 -4 Under vacuum conditions of Pa, it is heated to about 1700℃ and vaporized. After cooling, it adheres to the corona surface of the thin film to form an aluminum plating layer 8 with a thickness of 250 angstroms.

[0043] Step 8: Apply adhesive backing using Guangdong Jincan Electroplated Aluminum Adhesive Layer BJ-879, with 1.7% fumed silica added to improve edge cutting performance and adjust hot stamping venting properties. The coating temperature is 90℃-100℃-120℃-120℃-90℃, machine speed is 80m / min, film surface temperature is 82℃, on-machine solids content is 18%, and dry coating weight is 1.5g / m². 2 .

[0044] Step 9: Slicing. The electroplated aluminum produced in Step 8 is divided into plates at a speed of 135 m / min. This yields a holographic pattern and an electroplated aluminum product with overlapping printing. Example 2

[0045] The difference between Example 2 and Example 1 is that the color ink layer 7 in the layer structure is a gravure ink. In the example, color ink layer 7 was electronic ink, which is costly and has low production efficiency. To overcome this drawback, color ink layer 7 is replaced with gravure water-based polyurethane ink, and the brand "Bauhinia" can be used. The printing equipment is an electronic shaft gravure printing machine with secondary printing function, the oven temperature is 100℃-100℃, and the production speed is 150m / min.

[0046] To accommodate the changes in the color ink layer 7, the paint ratio for the connecting coating layer 6 needs to be adjusted, as follows: The raw materials and their weight percentages are as follows: The solid content is 40% organofluorine silicone modified hydroxyl acrylic-polyurethane composite dispersion (60%). 9% hydrophilic HDI trimer; Adhesion promoter 4%; Potassium salt of polyacrylic acid copolymer 0.8%; 4% of nano-silica treated with silane; Polyether-modified organosilicon 0.4%; 0.2% polyether-modified non-silicone surfactant; 0.2% nonionic polyurethane associative thickener; Deionized water 21.4%; The hydrophilic HDI trimer is Bayer 3100; The adhesion promoter is a 1:1 mixture of chlorinated polypropylene resin liquid with a solid content of 25% and silane coupling agent (KH-560).

[0047] The main resin in the above formulation is a 40% solid content organofluorine silicone modified hydroxyl acrylic-polyurethane composite dispersion, which combines the flexibility of polyurethane and the weather resistance of acrylic, while organofluorine silicone improves the surface smoothness. The curing agent is a hydrophilic HDI trimer, which provides low-temperature crosslinking activity and reacts with hydroxyl groups to form a dense network structure; In adhesion promoters, chlorinated polypropylene enhances the bonding force with plastic substrates, while silane coupling agents improve the chemical bonding with zinc sulfide. The wetting and dispersing agent is a potassium salt of polyacrylic acid copolymer, which improves the wettability of the coating and prevents flocculation; The functional filler is silane-treated nano-silica, which improves the coating hardness and scratch resistance; The leveling agent is a polyether-modified silicone, which is used to eliminate surface defects; The defoamer is a polyether-modified non-silicone surfactant used to suppress the generation of bubbles during production and construction. The thickener is a nonionic polyurethane associative thickener, which is used to adjust the application viscosity.

[0048] Everything else is the same as in Example 1. Example 3

[0049] The difference between Example 3 and Example 2 is that the color ink layer 7 in the layer structure is an acrylic system for gravure printing, and the brand can use Letong ink. The printing equipment is an electronic shaft gravure printing machine with secondary follow-up printing function, the oven temperature is 90℃-90℃, and the production speed is 140m / min.

[0050] To accommodate the changes in the color ink layer 7, the paint ratio for the connecting coating layer 6 needs to be adjusted, as follows: The raw materials and their weight percentages are as follows: 55% solids content of organofluorine-silicone modified hydroxyl acrylic-polyurethane composite dispersion; 12% hydrophilic HDI trimer; Adhesion promoter 5%; 1.0% potassium salt of polyacrylic acid copolymer; 5% nano-silica treated with silane; Polyether-modified organosilicon 0.5%; 0.3% polyether-modified non-silicone surfactant; 0.3% nonionic polyurethane associative thickener; Deionized water 20.9%; The hydrophilic HDI trimer is Bayer 3100; The adhesion promoter is a 1:1 mixture of chlorinated polypropylene resin liquid with a solid content of 25% and silane coupling agent (KH-560).

[0051] The main resin in the above formulation is a 40% solid content organofluorine silicone modified hydroxyl acrylic-polyurethane composite dispersion, which combines the flexibility of polyurethane and the weather resistance of acrylic, while organofluorine silicone improves the surface smoothness. The curing agent is a hydrophilic HDI trimer, which provides low-temperature crosslinking activity and reacts with hydroxyl groups to form a dense network structure; In adhesion promoters, chlorinated polypropylene enhances the bonding force with plastic substrates, while silane coupling agents improve the chemical bonding with zinc sulfide. The wetting and dispersing agent is a potassium salt of polyacrylic acid copolymer, which improves the wettability of the coating and prevents flocculation; The functional filler is silane-treated nano-silica, which improves the coating hardness and scratch resistance; The leveling agent is a polyether-modified silicone, which is used to eliminate surface defects; The defoamer is a polyether-modified non-silicone surfactant used to suppress the generation of bubbles during production and construction. The thickener is a nonionic polyurethane associative thickener, which is used to adjust the application viscosity.

[0052] Everything else is the same as in Example 1.

[0053] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. A holographic pattern and an overprinted electroplated aluminum foil, characterized in that... The layers, from bottom to top, are: PET base film layer, release coating, imaging coating, holographic image layer, transparent dielectric layer, bonding coating, color ink layer, aluminum plating layer, and adhesive layer. The transparent dielectric layer is a zinc sulfide dielectric layer. The bonding coating is applied across the entire surface and is used to connect the transparent dielectric layer and the color ink layer. The raw materials and their weight percentages for the bonding coating are as follows: 55-65% solids content of organofluorine-silicone modified hydroxyl acrylic-polyurethane composite dispersion; Hydrophilic HDI trimer 8-12%; Adhesion promoter 3-5%; Potassium salt of polyacrylic acid copolymer 0.5-1.0%; 3-5% nano-silica treated with silane; Polyether-modified organosilicon 0.2-0.5%; Polyether-modified non-silicone surfactant 0.1-0.3%; Nonionic polyurethane associative thickener 0.1-0.3%; Deionized water: 20.1%-21.4%; The adhesion promoter is a mixture of chlorinated polypropylene resin liquid with a solid content of 25% and silane coupling agent in a mass ratio of 1:

1.

2. The holographic pattern and printed overlapping electroplated aluminum according to claim 1, characterized in that... The aluminum plating thickness is 300-450 angstroms.

3. The holographic pattern and the printed overlapping electroplated aluminum according to claim 1, characterized in that... The adhesive backing is a two-component polyurethane adhesive with 1.7% fumed silica added, and the solid content is 25%-35%.

4. A method for manufacturing a holographic pattern and overprinted electroplated aluminum foil according to claim 1, comprising the following steps: 1) Apply a release coating to the entire PET base film layer using a 200-mesh electro-engraved plate, with a wet coating amount of 5.0 g / m². 2 The solid content of the coating is 1.37%, the coating temperature is 90℃-120℃-145℃-150℃-90℃, the machine speed is 80m / min, the film surface temperature is 99℃, and a sweeping roller is used after coating at a speed of 80m / min for winding. 2) Apply an imaging coating to the entire surface of the release coating. The solids content of the coating is 21.5%, using a 160-mesh ceramic anilox roller, with a wet coating weight of 7 g / m². 2 The coating temperature is 90℃-110℃-150℃-150℃-90℃, the machine speed is 80m / min, and the film surface temperature is 99℃. 3) After the film material prepared in step 2) is subjected to high temperature and high pressure, the holographic image is imprinted onto the imaging coating using a holographic platinum relief plate. At the same time, a cursor recognition block is printed online using a gravure plate. The size of the cursor recognition block is 10*10mm, and the molding temperature is 175℃. 4) Apply a dielectric coating to the molded surface, then perform vapor deposition in a vacuum coating machine, placing zinc sulfide on a molybdenum sheet, and then... -1 -10 -2 Under vacuum conditions of Pa, it is heated to about 650°C and vaporized, and then cooled and adhered to the corona surface of the thin film to form a transparent dielectric layer. 5) Coating and bonding layer, with a solids content of 18.5% on the machine, using a 160-mesh ceramic anilox roller, and a wet adhesive weight of 9g / m². 2 The coating temperature is 90℃-120℃-120℃-120℃-70℃, the machine speed is 80m / min, the film surface temperature is 77℃, and the coating is applied to the entire surface. 6) Print the color ink layer on a digital printing press. During the color ink printing, track the cursor recognition block left in step 3) and use CMYK halftone printing to achieve registration between the color ink layer image and the holographic image. 7) Apply a dense aluminum coating to the molded surface, and perform vapor deposition in a vacuum aluminum plating machine, depositing high-purity aluminum wire at 10... -3 -10 -4 Under vacuum conditions of Pa, it is heated to about 1700℃ to vaporize, and then cooled and adhered to the corona surface of the thin film to form an aluminum plating layer. 8) Apply backing adhesive: Add 1.7% fumed silica to the two-component polyurethane backing adhesive. Coating temperature: 90℃-100℃-120℃-120℃-90℃; machine speed: 80m / min; film surface temperature: 82℃; on-machine solids content: 18%; dry coating weight: 1.5g / m². 2 ; 9) Slitting: The electroplated aluminum produced in step 8) is divided into trays at a speed of 135 m / min.

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