Metal decorative plate, manufacturing method and application thereof and refrigerator

Abstract

The invention discloses a metal decorative plate, a manufacturing method and application thereof and a refrigerator, and belongs to the technical field of decorative panels of shells of household appliances. The metal decorative plate comprises a UMI three-dimensional texture layer, a printing layer, an adhesive layer, a metallization treatment layer, a glue layer, a metal base material and a primer layer. The UMI three-dimensional texture layer is a transparent embossed texture layer, and three-dimensional grains are arranged on the outer surface and the inner surface of the UMI three-dimensional texture layer; and the printing layer is attached to the inner surface of the UMI three-dimensional texture layer. The metal decorative plate is applied to the aspect of decorative panels of shells of household appliances, solves the problem that an existing metal decorative plate is poor in three-dimensional effect, and has the advantages that the surface of the metal decorative plate is rich in touch feeling, and the rich space three-dimensional effect of precise positioning can be achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of decorative panels for household appliance housings, and in particular relates to a metal decorative plate, a manufacturing method and application thereof, and a refrigerator. Background Art

[0002] As consumer spending levels and consumer values ​​rise, household appliances are no longer simply appliances; they are becoming decorative. Consequently, consumers are demanding increasingly sophisticated aesthetics. Metal-laminated laminates, with their metallic texture and rich appearance, satisfy consumers' aesthetic needs, making them the preferred material for appliance housings. However, current marketed metal-laminated laminates lack the ability to create a three-dimensional effect.

[0003] Chinese patent CN203888300U discloses a metal composite film and a steel plate containing the composite film. The metal composite film comprises a metal layer; a transparent layer disposed on the metal layer; and an embossed pattern layer disposed on the transparent layer. The steel plate is UV-embossed on one side, with the embossed surface on the outer surface, thereby imparting a tactile effect to the product surface. However, this solution only imparts a tactile effect to the product surface, without providing a three-dimensional effect. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the technical problem to be solved by the present invention is to overcome the problem of poor three-dimensional effect of existing metal decorative panels, and propose a metal decorative panel that not only has a tactile surface but can also produce rich and precisely positioned spatial three-dimensional effects, its manufacturing method, application and refrigerator.

[0005] In order to solve the technical problem, the technical solution adopted by the present invention is:

[0006] In one aspect, the present invention provides a method for manufacturing a metal decorative plate, comprising a UMI 3D texture layer, a printed layer, an adhesive layer, a metallized layer, a glue layer, a metal substrate, and a primer layer; the UMI 3D texture layer is a transparent embossed texture layer having 3D patterns on both the outer surface and the inner surface; the printed layer is laminated to the inner and outer surfaces of the UMI 3D texture layer;

[0007] The UMI three-dimensional texture layer is prepared by the following method:

[0008] A first UV resin is applied to the surface of a PET film using a comma coating method. After the PET film fully coated with the first UV resin passes through a first micro-embossing roller, the first UV resin is cured to form a first UV embossed layer. The PET film is then transferred via a guide roller and passed through the next comma coating die. A second UV resin is fully coated on the other side of the PET film. After passing through a second micro-embossing roller, the second UV resin is cured to form a second UV embossed layer. The first UV embossed layer defines the outer surface three-dimensional texture of the UMI three-dimensional texture layer, and the second UV embossing layer defines the inner surface three-dimensional texture of the UMI three-dimensional texture layer. The first and second micro-embossing rollers have the same size and the same rotation speed, and both have digital targets engraved on their surfaces.

[0009] Preferably, the UMI three-dimensional texture layer is prepared before the embossed pattern is precisely printed. The embossed pattern precisely printed includes:

[0010] After the PET film is embossed for the first time by the first micro-embossing roller, a target symbol with a first circular ring is formed on one surface; after the PET film is embossed for the second time by the second micro-embossing roller, a target symbol with a second circular ring is formed on the other surface; the mechanical motors of the two embossing parts are linked, and the same motor drives the first micro-embossing roller and the second micro-embossing roller to operate synchronously, and ensures that the rotation speeds of the first micro-embossing roller and the second micro-embossing roller are consistent. The Color Mark system is equipped with a target camera to capture the relative position of the target part of the PET film in real time, and adjust the relative position of the second micro-embossing roller according to the relative position of the two targets, so that the targets of the two circular rings are completely overlapped, so that the first micro-embossing roller and the second micro-embossing roller are fully aligned, and the embossed pattern is accurately overprinted.

[0011] Preferably, the UMI three-dimensional texture layer is prepared by the following method:

[0012] After completing the precise overprinting of the embossed pattern, the first UV resin is coated on the surface of the PET film by comma coating. After the PET film fully coated with the first UV resin passes through the first micro-embossing roller, the first UV resin is instantly cured under the irradiation of a UV curing lamp set at the position where the PET film and the first micro-embossing roller are separated, forming a first UV embossed layer; the PET film continues to be conducted through the guide roller and passes through the next comma coating die head, and the second UV resin is fully coated on the other side of the PET film. After passing through the second micro-embossing roller, the second UV resin is instantly cured under the irradiation of a UV curing lamp set at the position where the PET film and the second embossing roller are separated, forming a second UV embossed layer.

[0013] Preferably, the first UV resin adopts an epoxy acrylic resin system, and the second UV resin adopts a polyurethane acrylic resin system.

[0014] Preferably, ink is printed onto the second UV embossed layer of the UMI three-dimensional texture layer by gravure printing to form the printed layer, and the ink is translucent; a metal foil or nano-metal coating is laminated or coated by dry lamination to form a metallized layer; and the metal substrate is laminated by glue coating and hot pressing to form the metal decorative panel with a three-dimensional effect.

[0015] Preferably, the metal substrate is selected from any one of galvanized sheet, stainless steel, cold-rolled steel, and aluminum-magnesium-zinc plate; and the metal foil is selected from aluminum foil or copper foil.

[0016] Preferably, the UMI three-dimensional texture layer includes the first UV embossing layer, the second UV embossing layer, and a transparent layer provided between the first UV embossing layer and the second UV embossing layer.

[0017] The present invention also provides a metal decorative plate manufactured by the method for manufacturing a metal decorative plate described in any of the above technical solutions.

[0018] Another aspect of the present invention provides the use of the metal decorative plate described in the above technical solution in a decorative panel of a household appliance housing.

[0019] The present invention also provides a refrigerator, the outer shell of which includes the metal decorative plate described in the above technical solution.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The present invention provides a method for manufacturing a metal decorative plate. By performing precise UMI processing on the front and back sides of a PET film material, the UMI texture layers on both sides are precisely overprinted to produce a strong sense of spatial three-dimensionality. Laser positioning overprinting technology can ensure precise positioning of the UV lines on both sides, thereby giving the product a sense of spatial three-dimensionality. The surface UMI layer provides good surface physical and chemical properties and a 3D touch. At the same time, due to the thickness of the PET film layer itself, the three-dimensional sense of the UMI lines on the surface and inner layers is superimposed, thereby enhancing the spatial three-dimensional effect and achieving a differentiated appearance effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the layer structure of a metal decorative plate provided in an embodiment of the present invention;

[0023] Figure 2 This is a production flow chart of the UMI 3D texture layer provided in an embodiment of the present invention;

[0024] Figure 3Schematic diagram of the precise positioning and overprinting of the UMI 3D texture layer provided by an embodiment of the present invention;

[0025] In the above figures: 1. Metal substrate; 2. Glue layer; 3. Metallization treatment layer; 4. Adhesive layer; 5. Printing layer; 6. UMI three-dimensional texture layer; 7. Primer layer; Among them, 61. First UV embossing layer; 62. Transparent layer; 63. Second UV embossing layer. DETAILED DESCRIPTION

[0026] The following is a detailed and complete description of the technical solutions in specific embodiments of the present invention, with reference to the accompanying drawings. It should be understood that the described embodiments are merely partial implementations of the overall technical solution of the present invention, and are not exhaustive. All other embodiments derived by those skilled in the art based on the overall concept of the present invention are intended to fall within the scope of protection of the present invention.

[0027] In one aspect, the present invention provides a method for manufacturing a metal decorative plate, comprising a UMI 3D texture layer 6, a printed layer 5, an adhesive layer 4, a metallized layer 3, a glue layer 2, a metal substrate 1, and a primer layer 7. The UMI 3D texture layer 6 is a transparent embossed texture layer having 3D patterns on both the outer surface and the inner surface. The printed layer 5 is laminated to the inner surface of the UMI 3D texture layer 6.

[0028] The UMI three-dimensional texture layer 6 is prepared by the following method:

[0029] A first UV resin is applied to the surface of the PET film using a comma coating method. After the PET film fully coated with the first UV resin passes through a first micro-embossing roller, the first UV resin is cured to form a first UV embossed layer 61. The PET film is further transferred via a guide roller and passed through the next comma coating die. A second UV resin is fully coated on the other side of the PET film. After passing through a second micro-embossing roller, the second UV resin is cured to form a second UV embossed layer 63. The first UV embossed layer 61 defines the outer surface three-dimensional texture of the UMI three-dimensional texture layer 6; the second UV embossing layer 63 defines the inner surface three-dimensional texture of the UMI three-dimensional texture layer 6. The first and second micro-embossing rollers have the same size and the same rotation speed, and both surfaces are engraved with digital targets. The aforementioned manufacturing method applies precise UMI registration to both the front and back sides of the PET film. The UMI texture layers on both sides are precisely overprinted to create a strong sense of three-dimensionality. Laser positioning overprinting technology allows for precise positioning of the UV patterns on both sides, resulting in a three-dimensional effect on the product. The surface UMI layer provides excellent surface physical and chemical properties and a 3D tactile feel. Furthermore, due to the thickness of the PET film itself, the three-dimensional effects of the surface and inner UMI patterns overlap, enhancing the three-dimensional effect and achieving a differentiated appearance. It should be noted that conventional embossing often results in misalignment between the two layers, preventing strict alignment. The present invention, by adding laser positioning overprinting technology to the embossing equipment, achieves precise positioning of the upper and lower three-dimensional patterns. This provides the surface layer with excellent physical and chemical properties and a rich three-dimensional tactile feel. The two layers of UV patterns, separated by the PET film, create a three-dimensional effect, transforming the original flat three-dimensional texture into a three-dimensional one. The double-sided UV embossing employed in the present invention achieves a stronger three-dimensional effect than single-sided UV embossing. Furthermore, laser precision overprinting technology is employed to achieve precise alignment of the UV embossed patterns on both sides, creating a more refined, layered, three-dimensional effect. The metal decorative panels provided by this invention utilize a defined layer structure, allowing them to simultaneously display the embossed texture while also complementing the base color of the printed pattern and the metal layer, resulting in a more realistic, three-dimensional surface decoration. The thickness of the surface UMI pattern is no greater than 0.05mm, and the thickness of the inner UMI pattern is no greater than 0.02mm. This structure facilitates the bending of the decorative panels, preventing brittle cracking and whitening at the bends.

[0030] In a preferred embodiment, the preparation of the UMI three-dimensional texture layer 6 also includes precise embossing. The precise embossing includes: after the PET film is first embossed by the first micro-embossing roller, a target symbol with a first circular ring is formed on one surface; after the PET film is second embossed by the second micro-embossing roller, a target symbol with a second circular ring is formed on the other surface; the mechanical motors at the two embossing locations are linked, with the first and second micro-embossing rollers driven by the same motor to operate synchronously and ensure that the first and second micro-embossing rollers have the same rotational speed. The Color Mark system is equipped with a target camera to capture the relative position of the target portion of the PET film in real time. Based on the relative position of the two targets, the relative position of the second micro-embossing roller is adjusted so that the two circular targets completely overlap, achieving complete alignment between the first and second micro-embossing rollers and completing the precise embossing.

[0031] The micro-embossing roller features an overprinted cross target within the engraved pattern. After UV embossing, the target pattern is imprinted onto the film surface. A high-speed laser camera is installed within the production equipment to capture the target position in real time. By adjusting the rotational position of the second micro-embossing roller, the printed targets on both rollers completely overlap, achieving precise positioning of the patterns on the upper and lower surfaces. Both micro-embossing rollers are designed to be uniform, with their circumferences strictly aligned. This process allows for precise overprinting of the double-layer UV embossed pattern, resulting in a more precise three-dimensional effect.

[0032] In a preferred embodiment, the UMI three-dimensional texture layer 6 is prepared by the following method: after precise overprinting of the embossed pattern, a first UV resin is applied to the surface of the PET film via a comma coating method. After the PET film, fully coated with the first UV resin, passes through a first micro-embossing roller. Under the irradiation of a UV curing lamp located at the separation point between the PET film and the first micro-embossing roller, the first UV resin is instantaneously cured to form a first UV embossed layer 61. The PET film is then conveyed via a guide roller through the next comma coating die head, where a second UV resin is fully coated on the other side of the PET film. After passing through a second micro-embossing roller, the second UV resin is instantaneously cured under the irradiation of a UV curing lamp located at the separation point between the PET film and the second embossing roller to form a second UV embossed layer 63. The process also includes unwinding the PET film in a dust-free environment after precise overprinting of the embossed pattern. A tension controller is used to control the film tension at approximately 1.5 kg, ensuring smooth passage of the PET film through the transmission guide rollers.

[0033] In a preferred embodiment, the first UV resin utilizes an epoxy acrylic resin system, while the second UV resin utilizes a polyurethane acrylic resin system. The base film utilizes a double-sided chemically pre-coated PET film (preferably Toray / SKC) to enhance the adhesion of the UMI imprinting resin. The UV resin compositions for the front and back surfaces differ. The surface-applied UV resin utilizes an epoxy acrylic resin system, which provides excellent surface hardness and stain resistance. The non-surface UV resin primarily utilizes a polyurethane acrylic resin system, which offers superior ductility and adhesion.

[0034] In a preferred embodiment, the printed layer 5 is formed by printing ink onto the second UV embossed layer 63 of the UMI three-dimensional texture layer 6 by gravure printing. The ink is translucent. A metal foil or nano-metal coating is laminated or coated by dry lamination to form the metallized layer 3. The metal substrate 1 is laminated by adhesive coating and hot pressing to form the metal decorative panel with a three-dimensional effect.

[0035] In a preferred embodiment, the metal substrate 1 is selected from any one of galvanized sheet, stainless steel, cold-rolled steel, and aluminum-magnesium-zinc plate; the metal foil is selected from aluminum foil or copper foil. In a preferred embodiment, the UMI 3D texture layer 6 includes a first UV embossed layer 61, a second UV embossed layer 63, and a transparent layer 62 disposed between the first and second UV embossed layers 61 and 63.

[0036] The present invention also provides a metal decorative plate manufactured using the method for manufacturing a metal decorative plate described in any of the above-mentioned technical solutions. The upper and lower layers of UV patterns on this metal decorative plate are separated by a PET film, creating a three-dimensional spatial effect, upgrading the original flat three-dimensional texture to a three-dimensional spatial texture. The metal decorative plate provided by the present invention, through a defined layer structure, can not only reflect the embossed texture but also complement and combine with the base color of the printed pattern and the metal layer to create a more realistic and three-dimensional surface decorative effect. The thickness of the surface UMI three-dimensional pattern is no more than 0.05mm, and the thickness of the inner UMI three-dimensional pattern is no more than 0.02mm. This structure facilitates the bending of the decorative plate, and prevents brittle cracking and whitening at the bends.

[0037] Another aspect of the present invention provides the use of the metal decorative plate described in the above technical solution in a decorative panel of a household appliance housing.

[0038] The present invention further provides a refrigerator, wherein the outer shell of the refrigerator includes the metal decorative plate described in the above technical solution. The outer shell of the refrigerator has a richer appearance and a good touch feeling, which greatly improves the value of the product.

[0039] In order to more clearly and in detail introduce the metal decorative plate, its manufacturing method, application and refrigerator provided by the embodiments of the present invention, they will be described below in conjunction with specific embodiments.

[0040] Example 1

[0041] 1. The structure of metal decorative panels is as follows: Figure 1 As shown, it includes a metal substrate 1, a glue layer 2, a metallization treatment layer 3, an adhesive layer 4, a printing layer 5, a texture layer, and a primer layer 7; the UMI three-dimensional texture layer 6 includes a first UV embossing layer 61, a transparent layer 62, and a second UV embossing layer 63.

[0042] In the above layers:

[0043] The metal substrate 1 is any one of galvanized sheet, stainless steel, cold-rolled steel, and aluminum-magnesium-zinc plate. The surface decorative film material is combined with the metal substrate 1 by a hot pressing bonding process. The metal substrate 1 serves as the skeleton structure of the entire decorative plate, which is convenient for subsequent forming processing.

[0044] On one side of the metal substrate 1 is a glue layer 2, which bonds the metal substrate 1 to the metallized layer 3. Due to its high reflectivity, the metallized layer 3, through the combined effects of light reflection and refraction, amplifies the spatial texture of the three-dimensional texture layer. Its unique metallic luster also provides a rich metallic texture, enhancing the appearance of the decorative panel. The metallized layer 3 can be achieved through a composite method using metal foil (aluminum foil, copper foil, etc.), PVD vapor deposition, or metallic coating printing. On the other side of the metallized layer 3 is an adhesive layer 4, which connects the metallized layer 3 to the UMI three-dimensional texture layer 6. Between the adhesive layer 4 and the UMI three-dimensional texture layer 6 is a printed layer 5, which contains inks of different colors and contributes to the rich color effects of the metal-laminated panel. The UMI three-dimensional texture layer 6 consists of a pattern layer (including a first UV embossed layer 61 and a second UV embossed layer 63) and a transparent layer 62. The transparent layer 62 is made of PET with an optimal thickness range of 30-50 μm. The pattern layer is a UV resin layer. The manufacturing process for the two patterned layers involves first applying a full coat of UV resin to one side of a PET film. This is then embossed online using a high-precision laser engraving roller, forming distinct 3D shapes on the PET film surface. This is then cured with UV light to create a textured layer with a patterned effect. This process is repeated on the other side of the PET film, resulting in a double-sided UV-embossed PET film material, known as the UMI three-dimensional texture layer 6. A primer layer 7, an epoxy primer, is located on the other side of the metal substrate 1. This layer serves solely as an anti-corrosion agent, protecting the metal substrate 1 from corrosion by corrosive media. The decorative metal film described herein can be bonded to the surface of the metal substrate 1 using a glue layer 2, giving the metal sheet a richer appearance and a pleasant tactile feel.

[0045] 2. The manufacturing process includes:

[0046] In a dust-free environment, the PET film is unwound and the tension of the film is controlled at about 1.5 kg by the tension controller, so that the PET film passes smoothly through each transmission guide roller. Figure 2 As shown, the first UV resin is coated on the surface of the PET film by comma coating. The PET film fully coated with the first UV resin passes through the first micro-embossing roller. A UV curing lamp is provided at the position where the PET film is separated from the first embossing roller. The UV lamp is used to instantaneously cure the film, thereby forming a first UV embossed layer 61. The film continues to be conducted through the guide roller and passes through the next comma coating die. The second UV resin is fully coated on the other side of the PET film. The film then passes through the second micro-embossing roller. A UV curing lamp is provided at the position where the PET film is separated from the second embossing roller. The UV lamp is used to instantaneously cure the film, thereby forming a second UV embossed layer 63.

[0047] The micro-embossing roller features an overprinted cross target within the engraved pattern. After UV embossing, the target pattern is imprinted onto the film surface. A high-speed laser camera is installed within the production equipment to capture the target position in real time. By adjusting the rotational position of the second micro-embossing roller, the printed targets on both rollers completely overlap, achieving precise positioning of the patterns on the upper and lower surfaces. The two micro-embossing rollers must be uniformly designed, with their circumferences strictly aligned. The UV embossing equipment used in this process incorporates a Color Mark automatic roller control unit within the UMI processing area. This control unit consists of five components: an operation panel, a main monitor, a target camera, an embossing unit operation panel, and an embossing unit monitor.

[0048] Each set of UV embossing rollers needs to be designed and customized individually, and the dimensions of the two rollers must be exactly the same, such as Figure 3 As shown, the surface of each UV embossing roller is engraved with a digital target. After the first embossing process, a target symbol with a first circular ring is formed on the surface of the film material. During the second embossing process, a target symbol with a second circular ring is formed on the surface of the film material. The mechanical motors of the two embossing parts need to be linked, and the same motor drives the two printing rollers to run synchronously to ensure that the speed of the two embossing rollers remains consistent. The Color Mark system is equipped with a target camera to capture the relative position of the target parts of the film material in real time. The operator adjusts the relative position of the second embossing roller according to the relative position of the two targets, so as to adjust the two circular targets to completely overlap. At this time, it indicates that the two embossing rollers are fully aligned and the embossed pattern is accurately overprinted.

[0049] Through the above process, the precise overprinting of the double-layer UV embossed patterns is achieved, thereby producing a better spatial three-dimensional effect. The ink is printed onto the inner surface of the UV embossed semi-finished product by gravure printing. The ink is in a translucent state, which is convenient for superposition with other processing layers to produce a variety of appearance effects (in addition to ink, the printing can also contain effect pigments such as pearlescent powder). Metal foil or nano-metal coating is bonded or applied to the inner surface of the printed UV embossed semi-finished product produced above by dry compounding, thereby giving the product an excellent metallic appearance and gloss. The above semi-finished products are coated with adhesive by gravure printing, and acrylic glue is generally selected. The above film materials are bonded to the metal substrate 1 by glue coating and hot pressing, thereby forming a metal decorative plate with a spatial three-dimensional effect.

Claims

1. A method for manufacturing a metal decorative plate, characterized in that: The metal decorative plate includes a UMI 3D texture layer, a printing layer, an adhesive layer, a metallized treatment layer, a glue layer, a metal substrate, and a primer layer; the UMI 3D texture layer is a transparent embossed texture layer with 3D patterns on both the outer surface and the inner surface; the printing layer is bonded to the inner and outer surfaces of the UMI 3D texture layer; The UMI three-dimensional texture layer is prepared by the following method: A first UV resin is applied to the surface of a PET film by comma coating. After the PET film fully coated with the first UV resin passes through a first micro-embossing roller, the first UV resin is cured to form a first UV embossed layer. The PET film is further transferred through a guide roller and passed through a next comma coating die. A second UV resin is fully coated on the other side of the PET film. After passing through a second micro-embossing roller, the second UV resin is cured to form a second UV embossed layer. The first UV embossing layer defines the three-dimensional texture of the outer surface of the UMI three-dimensional texture layer; the second UV embossing layer defines the three-dimensional texture of the inner surface of the UMI three-dimensional texture layer; the first micro-embossing roller and the second micro-embossing roller have the same size and the same rotation speed, and both have digital targets engraved on their surfaces.

2. The method for manufacturing a metal decorative plate according to claim 1, wherein: Before preparing the UMI three-dimensional texture layer, the embossed pattern is precisely overprinted. The embossed pattern is precisely overprinted, and the embossed pattern comprises: After the PET film is embossed for the first time by the first micro-embossing roller, a target symbol with a first circular ring is formed on one surface; after the PET film is embossed for the second time by the second micro-embossing roller, a target symbol with a second circular ring is formed on the other surface; the mechanical motors of the two embossing parts are linked, and the same motor drives the first micro-embossing roller and the second micro-embossing roller to operate synchronously, and ensures that the rotation speeds of the first micro-embossing roller and the second micro-embossing roller are consistent. The Color Mark system is equipped with a target camera to capture the relative position of the target part of the PET film in real time, and adjust the relative position of the second micro-embossing roller according to the relative position of the two targets, so that the targets of the two circular rings are completely overlapped, so that the first micro-embossing roller and the second micro-embossing roller are fully aligned, and the embossed pattern is accurately overprinted.

3. The method for manufacturing a metal decorative plate according to claim 1, wherein: The UMI three-dimensional texture layer is prepared by the following method: After completing the precise overprinting of the embossed pattern, the first UV resin is coated on the surface of the PET film by comma coating. After the PET film fully coated with the first UV resin passes through the first micro-embossing roller, the first UV resin is instantly cured under the irradiation of a UV curing lamp set at the position where the PET film and the first micro-embossing roller are separated, forming a first UV embossed layer; the PET film continues to be conducted through the guide roller and passes through the next comma coating die head, and the second UV resin is fully coated on the other side of the PET film. After passing through the second micro-embossing roller, the second UV resin is instantly cured under the irradiation of a UV curing lamp set at the position where the PET film and the second embossing roller are separated, forming a second UV embossed layer.

4. The method for manufacturing a metal decorative plate according to claim 1, wherein: The first UV resin adopts an epoxy acrylic resin system, and the second UV resin adopts a polyurethane acrylic resin system.

5. The method for manufacturing a metal decorative plate according to claim 1, wherein: The printed layer is formed by printing ink onto the second UV embossed layer of the UMI three-dimensional texture layer by gravure printing, and the ink is translucent; a metal foil or nano-metal coating is laminated or coated by dry lamination to form a metallized layer; and the metal substrate is laminated by glue coating and hot pressing to form the metal decorative panel with a three-dimensional effect.

6. The method for manufacturing a metal decorative plate according to claim 5, characterized in that: The metal substrate is selected from any one of galvanized sheet, stainless steel, cold-rolled steel, and aluminum-magnesium-zinc plate; and the metal foil is selected from aluminum foil or copper foil.

7. The method for manufacturing a metal decorative plate according to claim 1, wherein: The UMI three-dimensional texture layer includes the first UV embossing layer, the second UV embossing layer, and a transparent layer disposed between the first UV embossing layer and the second UV embossing layer.

8. The metal decorative plate manufactured according to the method for manufacturing a metal decorative plate according to any one of claims 1 to 7.

9. Use of the metal decorative plate according to claim 8 in a decorative panel of a household appliance housing.

10. A refrigerator, characterized in that: The outer shell of the refrigerator includes the metal decorative plate according to claim 8.

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