Platinum embossment aluminum foil composite structure

Abstract

The utility model discloses a platinum embossment aluminum foil composite structure which comprises an aluminum foil. The front surface of the aluminum foil is coated with the adhesive layer; an aqueous coating; the UV coating is coated on the back surface of the water-based coating, and platinum relief images and texts are molded on the back surface of the UV coating; and the dielectric plating layer is formed on the back surface of the UV coating, and the dielectric plating layer is adhered to the front surface of the adhesive layer. According to the composite structure, the aluminum foil serves as a base material, the dielectric layer, the UV coating and the water-based coating are sequentially plated in a composite mode through the adhesive layer, the platinum embossment image-text is arranged on the back face of the UV coating in a mold pressing mode, traditional anti-fake and decoration performance is achieved, the platinum embossment effect can be provided, the visual stereoscopic impression is improved, and the service life is prolonged. In addition, the water-based coating and the UV coating can play a role in surface protection and isolation, the color fastness is good, fading or ink explosion is avoided, the plated medium layer can increase metallic luster and good reflectivity, and the decoration performance is further improved.

Description

Technical Field

[0001] The utility model relates to the field of packaging materials, in particular to an aluminum foil composite structure. Background Art

[0002] Anti-counterfeiting aluminum foil, a packaging material with both aesthetics and security, has a wide range of uses, including tobacco, food, and pharmaceutical packaging. However, during the production process, existing anti-counterfeiting aluminum foil often has anti-counterfeiting or decorative patterns, text, and other graphic information printed directly onto the foil substrate. This can lead to issues such as poor color fastness, discoloration, and ink flaking. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides an aluminum foil composite structure that is not easy to fade.

[0004] According to the embodiment of the present invention, the platinum-embossed aluminum foil composite structure includes: aluminum foil; an adhesive layer applied to the front side of the aluminum foil; a water-based coating; a UV coating applied to the back side of the water-based coating, the back side of the UV coating being molded with a platinum-embossed image; and a dielectric plating layer formed on the back side of the UV coating, the dielectric plating layer being adhered to the front side of the adhesive layer.

[0005] The invention has at least the following beneficial effects: the composite structure uses aluminum foil as a substrate, and is sequentially composited with a dielectric coating layer, a UV coating, and a water-based coating through an adhesive layer. The back of the UV coating is molded with a platinum embossed pattern, which not only has traditional anti-counterfeiting and decorative properties, but also can provide a platinum embossed effect, thereby enhancing the visual three-dimensional sense. Moreover, the water-based coating and the UV coating can also play the role of surface protection and isolation, have good color fastness, and will not fade or explode. The dielectric coating can increase the metallic luster and good reflectivity, thereby further enhancing the decorative performance.

[0006] According to some embodiments of the present invention, the aluminum foil is double-zero aluminum foil.

[0007] According to some embodiments of the present invention, the thickness of the water-based coating is 1-2 μm.

[0008] According to some embodiments of the present invention, the UV coating is formed by curing UV varnish coated on the back of the water-based coating.

[0009] According to some embodiments of the present invention, the platinum relief image is formed by pressing a platinum relief plate onto the UV varnish.

[0010] According to some embodiments of the present invention, the thickness of the UV coating is 5-10 μm.

[0011] According to some embodiments of the present invention, the dielectric plating layer is an aluminum plating layer.

[0012] According to some embodiments of the present invention, the back side of the UV coating is cooled by aluminum evaporation and subjected to corona treatment to form the dielectric coating layer.

[0013] According to some embodiments of the present invention, the adhesive layer is formed by curing a light-curing adhesive.

[0014] According to some embodiments of the present invention, the thickness of the adhesive layer is 1-2 μm.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0017] Figure 1 This is a schematic cross-sectional view of an embodiment of the present invention;

[0018] Figure numbers: aluminum foil 1, adhesive layer 2, dielectric coating layer 3, platinum embossed pattern 4, UV coating 5, water-based coating 6. DETAILED DESCRIPTION

[0019] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0020] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0021] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0022] Reference Figure 1The utility model discloses a platinum embossed aluminum foil composite structure, comprising an aluminum foil 1, an adhesive layer 2, a plated dielectric layer 3, a platinum embossed graphic 4, a UV coating 5 and a water-based coating 6.

[0023] Reference Figure 1 The adhesive layer 2 is coated on the front of the aluminum foil 1, the UV coating 5 is coated on the back of the water-based coating 6, the back of the UV coating 5 is molded with a platinum embossed image 4, the plated dielectric layer 3 is formed on the back of the UV coating 5, and the plated dielectric layer 3 is pasted on the front of the adhesive layer 2.

[0024] In the production process, a PET film is used as a transition substrate, and a water-based coating 6 is coated on the surface of the PET film to form a PET transfer film with transfer ability. Then, a UV coating 5 is coated on the PET transfer film, and a platinum relief pattern 4 is molded on the UV coating 5. Then, a medium is plated on the platinum relief pattern 4 to form a plated medium layer 3. Then, the medium layer 3 is adhered to the front side of the aluminum foil 1 through an adhesive layer 2 and finally, the PET film is peeled off from the water-based coating 6 to obtain the composite structure.

[0025] The PET film is peeled off from the product surface by peeling and rewinding at the same time.

[0026] Reference Figure 1 The back of the UV coating 5 is molded with a platinum embossed image 4. In addition to the traditional anti-counterfeiting and decorative properties, it can also provide a platinum embossed effect to enhance the visual three-dimensional sense. Moreover, the water-based coating 6 and the UV coating 5 can also play a role in surface protection and isolation. The color fastness is good and will not fade or explode. The dielectric layer 3 can increase the metallic luster and good reflectivity, further improving the decorative performance.

[0027] In some embodiments of the present invention, the aluminum foil 1 is specifically a double-zero aluminum foil. It can be understood that the double-zero aluminum foil refers to an aluminum foil with two zeros after the decimal point when its thickness is measured in mm, usually an aluminum foil with a thickness of less than 0.0075 mm.

[0028] In some embodiments, the thickness of the water-based coating 6 is configured to be 1-2 μm, which is sufficient to facilitate the peeling of the PET film; the thickness of the UV coating 5 is configured to be 5-10 μm, and the UV coating 5 is formed by curing the UV varnish coated on the back of the water-based coating 6.

[0029] Among them, the platinum relief image and text 4 can be pressed by a platinum relief plate on UV varnish, that is, a platinum relief pattern and text are pressed on the UV varnish on the back of the water-based coating 6 using a molding machine and a platinum relief plate, thereby obtaining the platinum relief image and text 4, wherein the platinum relief plate can be understood as a molding master.

[0030] Reference Figure 1The dielectric plating layer 3 can be specifically an aluminum plating layer. The back of the UV coating 5 is cooled by aluminum evaporation and subjected to corona treatment to form the dielectric plating layer 3. In addition, the dielectric plating layer 3 can also be a zinc sulfide plating layer.

[0031] In some embodiments, the adhesive layer 2 is formed by curing a photocurable adhesive, and the thickness of the adhesive layer 2 is configured to be 1-2 μm. A photocuring process is used, which does not require oven heating, resulting in higher production efficiency and more energy saving.

[0032] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0033] Of course, the present invention is not limited to the above-mentioned embodiments. Those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. Platinum embossed aluminum foil composite structure, characterized in that: include: Aluminum foil; an adhesive layer, coated on the front surface of the aluminum foil; Water-based coating; A UV coating is applied to the back of the water-based coating, the UV coating being formed by curing a UV varnish applied to the back of the water-based coating, the back of the UV coating being embossed with a platinum relief pattern, the platinum relief pattern being formed by pressing a platinum relief plate onto the UV varnish; A dielectric plating layer is formed on the back of the UV coating layer, and the dielectric plating layer is adhered to the front of the adhesive layer.

2. The platinum embossed aluminum foil composite structure according to claim 1, characterized in that: The aluminum foil is double-zero aluminum foil.

3. The platinum embossed aluminum foil composite structure according to claim 1, characterized in that: The thickness of the water-based coating is 1-2 μm.

4. The platinum embossed aluminum foil composite structure according to claim 1, characterized in that: The thickness of the UV coating is 5-10 μm.

5. The platinum embossed aluminum foil composite structure according to claim 1, characterized in that: The dielectric plating layer is an aluminum plating layer.

6. The platinum embossed aluminum foil composite structure according to claim 5, characterized in that: The back side of the UV coating is cooled by aluminum evaporation and subjected to corona treatment to form the dielectric coating layer.

7. The platinum embossed aluminum foil composite structure according to claim 1, characterized in that: The adhesive layer is formed by curing a light-curing adhesive.

8. The platinum embossed aluminum foil composite structure according to claim 1 or 7, characterized in that: The thickness of the adhesive layer is 1-2 μm.

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