A patterned coating structure and manufacturing method

Abstract

The present invention discloses a patterned coating structure and a manufacturing method, wherein an electroplated metal layer is directly arranged on a shell. Since the electroplated metal layer is arranged on the shell through a transfer process, its bonding force with the shell is weak, and a first gap is formed between the edge of the electroplated metal layer and the surface of the shell. An adhesive layer is arranged on the electroplated metal layer. On the one hand, the adhesive layer can penetrate into the first gap to strengthen the connection between the shell and the electroplated metal layer, thereby increasing the adhesion of the electroplated metal layer to the shell. On the other hand, the adhesive layer can also bond the electroplated metal layer to the protective paint layer. The protective paint layer at least covers the electroplated metal layer, and the electroplated metal layer can be protected from wear by the protective paint layer. Moreover, compared with the prior art, there is no need to prepare a primer layer before electroplating, thereby reducing the primer process and also meeting the adhesion requirements of the electroplated metal layer on the shell.

Description

Technical Field

[0001] The present invention relates to the technical field of pattern production, and in particular to a patterned coating structure and a production method thereof. Background Art

[0002] Logos (trademarks / logos) are often used in conjunction with products. For electronic products, especially mobile phones, a pattern is usually formed on the back cover, and this pattern can be used as a logo;

[0003] Conventional logos are mostly printed with ink. However, for some special logos, such as holographic iridescent logos, the limitations of ink itself result in poor reflection and iridescent effects. Furthermore, existing holographic iridescent logos are directly printed with ink on the product surface or on a coating on the product surface, which can easily cause the logo to be scratched or faded over time.

[0004] Therefore, how to make the pattern durable and have a better appearance has become a problem that urgently needs to be improved in the existing technology. Summary of the Invention

[0005] The present application aims to provide a patterned coating structure and a manufacturing method to solve the problem of how to make the pattern durable and have a better appearance.

[0006] The solution adopted by this application to solve the above technical problems is:

[0007] In a first aspect, the present application provides a patterned coating structure, comprising

[0008] shell;

[0009] an electroplated metal layer, which is transferred and disposed on the housing, and the electroplated metal layer forms a patterned structure on a local area of ​​the housing, wherein a first gap is formed between at least a portion of an edge of the electroplated metal layer and the housing;

[0010] an adhesive layer covering the electroplated metal layer, wherein the adhesive layer partially penetrates into the first gap and bonds the electroplated metal layer and the housing;

[0011] A protective paint layer is bonded to the bonding layer, and a vertical projection of the protective paint layer on the bonding layer at least covers the electroplated metal layer.

[0012] In some embodiments of the present application, the first gap is continuously provided along the edge of the electroplated metal layer.

[0013] In some embodiments of the present application, a cross section of the first gap is a gradually expanding structure along a first direction, and the first direction is a direction in which the electroplated metal layer extends from the middle to the edge.

[0014] In some embodiments of the present application, the adhesive layer has an extension portion extending outward to between the outer shell and the protective paint layer, and one side of the extension portion is bonded to the outer shell, and the other side is bonded to the protective paint layer.

[0015] In some embodiments of the present application, the protective paint layer includes a first protective sublayer and a second protective sublayer stacked sequentially on the electroplated metal layer; wherein the first protective sublayer is made of a polyurethane resin material, and the second protective sublayer is made of a photocurable material.

[0016] In some embodiments of the present application, the electroplated metal layer is a colorful metal layer, and the protective paint layer is made of a transparent material or a translucent material.

[0017] In a second aspect, the present application further provides a method for manufacturing a patterned coating structure, comprising the following steps:

[0018] providing a housing;

[0019] Transferring and disposing an electroplated metal layer on the shell, wherein the electroplated metal layer forms a patterned structure on a local area of ​​the shell, wherein a first gap is formed between at least a portion of an edge of the electroplated metal layer and the shell;

[0020] spraying a pretreatment agent on the surface of the electroplated metal layer and at least a portion of the outer shell, and partially penetrating the pretreatment agent into the first gap;

[0021] curing the pretreatment agent to form an adhesive layer, wherein the adhesive layer fills the first gap and bonds the electroplated metal layer and the housing;

[0022] A protective paint layer is formed on the electroplated metal layer, and a vertical projection of the protective paint layer on the adhesive layer at least covers the electroplated metal layer.

[0023] In some embodiments of the present application, the pretreatment agent comprises the following components by mass percentage:

[0024] 45-50% modified polyurethane acrylate, 8-12% DAA diacetone alcohol, 3-7% white water-proof ethylene glycol butyl ether, 8-12% isopropyl alcohol, 12-17% butyl acetate, 10-15% ethyl acetate;

[0025] The shell is made of plastic material, and the protective paint layer is made of PU paint or UV paint.

[0026] In some embodiments of the present application, the step of forming a protective paint layer includes:

[0027] A first protective sublayer is coated on the electroplated metal layer and the shell, and then baked and cooled. The first protective sublayer is baked with a descending step temperature.

[0028] In some embodiments of the present application, the step of transferring and providing an electroplated metal layer on the housing includes:

[0029] providing a substrate;

[0030] electroplating a first film layer on the substrate;

[0031] A transfer mold having a structure corresponding to the electroplated metal layer is provided, and at least a portion of the first film layer is transferred to the housing through the transfer mold to form the electroplated metal layer.

[0032] The present application provides a patterned coating structure and a manufacturing method, in which an electroplated metal layer is directly disposed on the shell. Since the electroplated metal layer is disposed on the shell through a transfer process, its bonding force with the shell is weak, and a first gap is formed between the edge of the electroplated metal layer and the surface of the shell. An adhesive layer is disposed on the electroplated metal layer. On the one hand, the adhesive layer can penetrate into the first gap to strengthen the connection between the shell and the electroplated metal layer, thereby increasing the adhesion of the electroplated metal layer to the shell. On the other hand, the adhesive layer can also bond the electroplated metal layer to the protective paint layer. The protective paint layer at least covers the electroplated metal layer, and the electroplated metal layer can be protected from wear by the protective paint layer. Compared with the prior art, there is no need to prepare a primer layer before electroplating, which reduces the primer process and can also meet the adhesion requirements of the electroplated metal layer on the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0034] Figure 1 A partial structural diagram of a patterned coating structure of the present invention;

[0035] Figure 2 is an overall structural diagram of the patterned coating structure of the present invention;

[0036] Figure 3 A diagram showing the protective paint layer structure of the patterned coating structure of the present invention;

[0037] Figure 4 It is a schematic diagram of the top structure of the present invention.

[0038] Element symbol description:

[0039] 1-housing, 2-electroplated metal layer, 3-protective paint layer, 4-adhesive layer, 5-first gap, 21-edge, 31-first protective sublayer, 32-second protective sublayer, 33-extension portion, 41-penetration portion. DETAILED DESCRIPTION

[0040] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making any creative efforts shall fall within the scope of protection of the present invention.

[0041] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0042] In this application, the word "exemplary" is used to mean "serving as an example, illustration, or illustration." Any embodiment described in this application as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. The following description is given to enable any person skilled in the art to implement and use the invention. In the following description, details are listed for the purpose of explanation. It should be understood that one of ordinary skill in the art will recognize that the invention can be implemented without these specific details. In other instances, known structures and processes are not described in detail to avoid obscuring the description of the invention with unnecessary detail. Therefore, the present invention is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles disclosed herein.

[0043] In the field of electronic products such as mobile phones, logos (trademarks / logos) are an indispensable part of electronic products. Logos can intuitively reflect the brand's influence to a certain extent, so the design of logos is also particularly important. Traditional logos are mostly monochrome logos, with simple craftsmanship but cannot reflect the brand's needs for youth and fashion. At present, some logos also use holographic fantasy colors, which combine metallic colors and rainbow colors, and appear different fantasy colors with changes in light. It has changing, cool, and sci-fi colors, which is an important future development direction in the logo field.

[0044] Traditional iridescent logos are printed using inks. First, inks with various colors are prepared and then printed onto the product surface. However, after printing, the ink layer is thick and different ink colors have different material compositions, making it difficult to create a stable, smooth protective lacquer layer on top of the ink layer. Consequently, ink-printed logos are often directly exposed, and the ink layer can easily be scratched or faded over long periods of use. This application, however, overcomes these existing problems by creating iridescent patterns through a different approach.

[0045] Please refer to the following for details: Figure 1 、 Figure 2 and Figure 4 The main body of this embodiment is a patterned coating structure, including a shell 1; an electroplated metal layer 2, which is transferred and arranged on the shell 1, and the electroplated metal layer 2 forms a patterned structure on a local area of ​​the shell 1, wherein a first gap 5 is provided between at least a portion of the edge 21 of the electroplated metal layer 2 and the shell 1; an adhesive layer 4, which covers the electroplated metal layer 2, and the adhesive layer 4 partially penetrates into the first gap 5 and bonds the electroplated metal layer 2 and the shell 1; a protective paint layer 3, which is bonded to the adhesive layer 4, and the vertical projection of the protective paint layer 3 on the adhesive layer 4 at least covers the electroplated metal layer 2.

[0046] The electroplated metal layer 2 is directly arranged on the shell 1. Since the electroplated metal layer 2 is arranged on the shell 1 through a transfer process, its bonding force with the shell 1 is weak, and a first gap 5 is formed between the edge of the electroplated metal layer 2 and the surface of the shell 1. The adhesive layer 4 is arranged on the electroplated metal layer 2. On the one hand, the adhesive layer 4 can penetrate into the first gap 5 to strengthen the connection between the shell 1 and the electroplated metal layer 2, and increase the adhesion of the electroplated metal layer 2 on the shell 1. On the other hand, the adhesive layer 4 can also bond the electroplated metal layer 2 and the protective paint layer 3. The protective paint layer 3 at least covers the electroplated metal layer 2, and the electroplated metal layer 2 can be wear-resistantly protected by the protective paint layer 3. Compared with the existing technology, there is no need to prepare a primer layer before electroplating, which reduces the primer process and can also meet the adhesion requirements of the electroplated metal layer 2 on the shell 1.

[0047] It is understandable that the electroplated metal layer 2 is directly provided on the housing 1. Since the housing 1 is generally made of plastic material, the electroplated metal layer 2 is transferred to the plastic housing 1 through a transfer process, resulting in weak adhesion between the electroplated metal layer 2 and the housing 1. In addition, there is no primer on the housing 1, and there are many pits on the surface. Due to stress, the edge 21 of the electroplated metal layer 2 will slightly warp, forming a first gap 5 that is not noticeable to the naked eye. In other words, the first gap 5 is a gap that is easily penetrated due to the weak bonding force between the electroplated metal layer 2 and the housing 1.

[0048] It is understandable that the adhesive layer 4 is bonded to the electroplated metal layer 2 on one side and to the protective paint layer 3 on the other side, which can strengthen the bonding strength between the protective paint layer 3 and the electroplated metal layer 2 and improve the durability of the protective paint layer 3.

[0049] In some embodiments, see Figure 4 When the adhesive layer 4 covers the electroplated metal layer 2, the adhesive layer 4 penetrates into the first gap 5 along the edge 21 of the electroplated metal layer 2 to fill the first gap 5, thereby guiding at least part of the electroplated metal layer 2 and the shell 1 to bond.

[0050] In some embodiments of this application, please refer to Figure 4 The first gaps 5 are continuously arranged along the edge 21 of the electroplated metal layer 2. The continuous first gaps 5 can form a uniform and stable adhesive layer 4, thereby improving the bonding stability between the electroplated metal layer 2 and the housing 1.

[0051] In some embodiments, the first gap 5 may also be a channel portion that is continuously spaced apart, and the adhesive layer 4 can fill the channel portion.

[0052] In some embodiments of this application, please refer to Figure 2 The cross section of the first gap 5 is gradually expanded along a first direction, and the first direction is the direction in which the electroplated metal layer 2 extends from the middle to the edge 21. The adhesive layer 4 gradually penetrates from the outside to the inside, strengthening the bonding strength between the upper and lower surfaces in the first gap 5.

[0053] In some embodiments of this application, please refer to Figure 2 The adhesive layer 4 has an extension portion 33 extending outward between the housing 1 and the protective lacquer layer 3. One side of the extension portion 33 is bonded to the housing 1, and the other side is bonded to the protective lacquer layer 3. The extension portion 33 strengthens the bond between the protective lacquer layer 3 and the housing 1, further improving the adhesion of the electroplated metal layer 2 to the housing 1, and thereby enhancing the bonding strength among the electroplated metal layer 2, the housing 1, and the protective lacquer layer 3.

[0054] In some embodiments of this application, please refer to Figure 3 The protective paint layer 3 includes a first protective sublayer 31 and a second protective sublayer 32 sequentially stacked on the electroplated metal layer 2; wherein the first protective sublayer 31 is made of polyurethane resin material, and the second protective sublayer 32 is made of photocurable material.

[0055] In some embodiments, the first protective sublayer 31 is a PU paint layer, and the second protective sublayer 32 is a UV paint layer. The PU paint layer has good adhesion to the housing 1 and can effectively fix and protect the electroplated metal layer 2. The UV paint layer has good wear resistance and can protect the electroplated metal layer 2 from wear.

[0056] In some embodiments, see Figure 2 On the shell 1, there are arranged an electroplated metal layer 2, an adhesive layer 4, and a protective paint layer 3 from bottom to top. The protective paint layer 3 needs to be worn off first before the electroplated metal layer 2 is worn, which greatly improves the protection of the electroplated metal layer 2, so that the protective paint layer 3 can protect the shell 1 and the electroplated metal layer 2 together; the existing ink printing is to print the logo directly on the protective paint layer 3. The protective paint layer 3 only has the function of protecting the shell 1 and cannot protect the logo.

[0057] In some embodiments of the present application, the electroplated metal layer 2 is a colorful metal layer, which can be a holographic colorful logo, and the protective paint layer is made of a transparent or translucent material. More preferably, the adhesive layer 4 is made of a transparent material to reduce the adhesive layer 4 from obstructing the electroplated metal layer 2.

[0058] The electroplated metal layer 2 is a metal film layer structure. Compared with the ink structure, the metal film layer has a better reflection effect and can form a more excellent holographic magic color effect.

[0059] It is understood that the electroplated metal layer 2 is produced by optical coating; more specifically, the electroplated metal layer 2 is produced by vacuum coating. By coating a metal film on a surface, light is reflected and projected multiple times on the metal film layer, forming multi-beam interference, thereby producing a film structure with various iridescent colors. In some embodiments, the thickness and refractive index of the metal film layer can be controlled to obtain different intensity distributions, thereby achieving iridescent colors.

[0060] It is understandable that the pattern structure refers to a decorative pattern or graphic, which can be used as a logo or a pattern to increase the beauty of the product; in some embodiments, the pattern structure refers to a logo set on the product.

[0061] The main body of this embodiment is a method for manufacturing a patterned coating structure, which includes the following steps: providing a shell 1; transferring an electroplated metal layer 2 on the shell 1, and the electroplated metal layer 2 forms a patterned structure on a local area of ​​the shell 1, wherein a first gap 5 is provided between at least a portion of an edge 21 of the electroplated metal layer 2 and the shell 1; spraying a pretreatment agent on the surface of the electroplated metal layer 2 and at least a portion of the shell 1, and the pretreatment agent partially penetrates into the first gap 5; curing the pretreatment agent to form an adhesive layer 4, and the adhesive layer 4 fills the first gap 5 and bonds the electroplated metal layer 2 and the shell 1; forming a protective paint layer 3 on the electroplated metal layer 2, and the vertical projection of the protective paint layer 3 on the adhesive layer 4 at least covers the electroplated metal layer 2.

[0062] In some embodiments of the present application, the pretreatment agent comprises the following components by mass percentage: 45-50% modified polyurethane acrylate, 8-12% DAA diacetone alcohol, 3-7% anti-white water ethylene glycol butyl ether, 8-12% isopropyl alcohol, 12-17% butyl acetate, and 10-15% ethyl acetate; the shell 1 is made of plastic material, and the protective paint layer 3 is made of PU paint or UV paint.

[0063] It is understandable that by spraying the pretreatment agent to form the adhesive layer 4 , the pretreatment agent can be evenly sprayed onto the surface of the electroplated metal layer 2 to form a flat coating structure with uniform performance.

[0064] Among them, the CAS number of DAA is 123-42-2, the CAS number of anti-white water is 111-76-2, the CAS number of isopropyl alcohol is 67-63-0, the CAS number of butyl acetate is 123-86-4, and the CAS number of ethyl acetate is 141-78-6. The pretreatment agent can also improve the corrosion resistance of the electroplated metal layer 2.

[0065] In some embodiments, the pretreatment agent comprises the following components, by mass percentage: 48% modified polyurethane acrylate, 10% diacetone alcohol (DAA), 5% anti-white water (ethylene glycol butyl ether), 10% isopropyl alcohol, 15% butyl acetate, and 12% ethyl acetate. The product prepared using the composition ratio of this embodiment exhibits a highly resistant electroplated metal layer 2, fully meeting the inspection standards for coating products.

[0066] It can be understood that polyurethane acrylate can promote the bonding between the metal and plastic layers. This embodiment can use modified polyurethane acrylate to make it easier to penetrate into the first gap 5 and expand the range of the first gap 5 to promote the bonding between the electroplated metal layer 2 and the shell 1.

[0067] In some embodiments of the present application, the step of forming the protective paint layer 3 includes: applying a first protective sub-layer 31 on the electroplated metal layer 2 and the housing 1, baking and cooling, and baking the first protective sub-layer 31 in a stepwise manner. The first protective sub-layer 31 covers the electroplated metal layer 2. Since the electroplated film layer has a certain thickness and the surface of the housing 1 is not completely flat, baking the first protective sub-layer 31 in a stepwise manner can slow down the curing speed of the paint, thereby improving the flatness of the surface of the first protective sub-layer 31 after it covers the electroplated metal layer 2.

[0068] More specifically, the process of transferring the electroplated metal layer 2 and the protective paint layer 3 onto the housing 1 includes the following steps: applying a PU paint layer onto the electroplated metal layer 2, baking and cooling it; and applying a UV paint layer onto the PU paint layer, leveling it, and then curing it with UV light. The PU paint layer covers the electroplated metal layer 2. Since the electroplated metal layer 2 only exists in a localized area of ​​the housing 1, it can easily lead to unevenness in the PU paint layer. Baking the PU paint layer at a decreasing temperature can slow down the paint's curing speed, thereby improving the surface smoothness of the PU paint layer.

[0069] Among them, by setting up a two-layer structure to protect the electroplated metal layer 2, the wear resistance can be enhanced while the adhesion of the electroplated film layer can be enhanced. In the existing technology, only one wear-resistant layer is usually set, and its adhesion is sufficient, so there is no motivation to set up a two-layer structure.

[0070] It can be understood that the PU paint used in this application is a polyurethane resin coating, which is divided into two-component polyurethane coating and one-component polyurethane coating. The two-component polyurethane coating is generally composed of two parts: isocyanate prepolymer (low molecular weight urethane polymer) and hydroxyl-containing resin, usually referred to as curing agent component and main agent component, and is usually used in combination of main agent + curing agent + diluent.

[0071] It is understood that the UV lacquer used in this application is a light-curing coating that uses ultraviolet light as the energy source for curing. It does not require heating and can rapidly cure into a film on a variety of substrates. It is primarily composed of a photosensitive resin, a photosensitizer (photoinitiator), and a diluent. The principle of UV lacquer curing through light is that the initiator absorbs ultraviolet light, generating free radicals that trigger the reaction and curing of monomers and oligomers.

[0072] In some embodiments of the present application, the step of setting the electroplated metal layer 2 includes: providing a substrate; electroplating a first film layer on the substrate; providing a transfer mold corresponding to the electroplated metal layer 2, and transferring at least part of the first film layer to the shell 1 through the transfer mold to form the electroplated metal layer 2.

[0073] If the housing 1 is electroplated directly, it is difficult to obtain the desired pattern. Even if a fixture is used for electroplating, there will be some redundant patterned coating structures around the pattern. Therefore, a transfer method is used to transfer the desired pattern directly to the housing 1 through a transfer mold. In some embodiments, the substrate is made of PET material.

[0074] It should be noted that transfer printing in this application refers to a printing method in which a pattern or coating on an intermediate carrier film is transferred to a substrate using corresponding pressure. The desired printing pattern can be obtained by adjusting the pattern of the transfer mold.

[0075] In some embodiments of the present application, a method for manufacturing a patterned coating structure includes:

[0076] 1) Substrate cutting: Cut large PET films into small-sized substrates by die cutting or other methods to facilitate optical coating;

[0077] 2) Optical coating: Optical coating is performed on the substrate to form the first film layer of holographic magic color;

[0078] 3) Cleaning of the outer shell 1: Use alcohol and degreasing non-woven cloth to remove grease, particles and other impurities on the surface of the product material (the finish requires B2 grade polishing), and wipe the product clean;

[0079] 4) Electrostatic dust removal: Use high-voltage electrostatic force to separate dust-laden gas when it passes through the high-voltage electrostatic field. The dust particles combine with negative ions and carry negative charges. They tend to discharge toward the anode surface and deposit, making the surface of the product material cleaner.

[0080] 5) Transfer: Using a transfer mold with a logo pattern, apply pressure to transfer the first film layer to the housing 1, and form an electroplated metal layer 2 with the logo pattern;

[0081] 6) Preparation of adhesive layer 4: Spray the pretreatment agent on the product through a high-pressure spray gun to form an adhesive layer 4, and the film thickness is controlled at 5-6 μm;

[0082] 7) Primary baking: The product sprayed with the pretreatment agent passes through the baking line at a temperature of 50°C for 15 minutes. After the pretreatment is fully cured, it is cooled through a line at a temperature of 20°C for 10 minutes.

[0083] 8) Preparation of the first protective sublayer 31: Spraying a PU paint with a high-transmittance color on the product with a high-pressure spray gun, with a film thickness of 5-6 μm;

[0084] 9) Secondary baking: The product is passed through the baking line, and the temperature is set to 70-60-50℃ for step baking. The baking time is 15 minutes. After the PU paint is fully cured, it is cooled through the line at a temperature of 20-30℃ for 10 minutes.

[0085] 10) Prepare the second protective sublayer 32: spray transparent UV varnish onto the product, set the paint viscosity to 9.5s, and control the film thickness to about 23μm to achieve a bright effect;

[0086] 11) Leveling: The product sprayed with UV varnish passes through the conveyor line, and the solvent on the surface evaporates within 5 minutes. While the gas evaporates, the paint film is also leveled, thus ensuring the flatness and glossiness of the paint film;

[0087] 12) UV light curing: The leveled product is irradiated with ultraviolet light by a UV lamp with an energy of 1000-1100mj / cm 2 , so that the UV paint is fully cured.

[0088] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, please refer to the detailed description of other embodiments above and will not be repeated here.

[0089] The basic concepts have been described above. It will be apparent to those skilled in the art that the detailed disclosure above is merely illustrative and does not limit the present application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and amendments to the present application. Such modifications, improvements, and amendments are suggested in the present application and remain within the spirit and scope of the exemplary embodiments of the present application.

[0090] At the same time, this application uses specific terms to describe the embodiments of this application. For example, "one embodiment," "an embodiment," and / or "some embodiments" refer to a certain feature, structure, or characteristic related to at least one embodiment of this application. Therefore, it should be emphasized and noted that "one embodiment," "an embodiment," or "an alternative embodiment" mentioned twice or multiple times in different locations in this specification does not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of this application may be appropriately combined.

[0091] Similarly, it should be noted that, in order to simplify the presentation of this application and thus facilitate understanding of one or more embodiments of the invention, the foregoing descriptions of the embodiments of this application sometimes combine multiple features into a single embodiment, figure, or description thereof. However, this disclosure method does not mean that the subject matter of this application requires more features than those recited in the claims. In fact, an embodiment may have fewer features than all of the features of a single embodiment disclosed above.

[0092] In some embodiments, numbers are used to describe the quantity of components and attributes. It should be understood that such numbers used in the description of the embodiments are modified by the modifiers "about", "approximately" or "substantially" in some examples. Unless otherwise stated, "about", "approximately" or "substantially" indicate that the numbers are allowed to vary by ±20%. Accordingly, in some embodiments, the numerical parameters used in the description and claims are approximate values, which may change according to the required features of individual embodiments. In some embodiments, the numerical parameters should take into account the specified significant digits and adopt the general method of retaining digits. Although the numerical domains and parameters used to confirm the breadth of their range in some embodiments of the present application are approximate values, in specific embodiments, the settings of such numerical values ​​are as accurate as possible within the feasible range.

[0093] Each patent, patent application, patent application publication, and other materials, such as articles, books, specifications, publications, and documents, cited in this application is hereby incorporated by reference in its entirety, except for any application history that is inconsistent with or conflicts with this application, and any document (currently or subsequently appended to this application) that limits the broadest scope of the claims of this application. It should be noted that if the descriptions, definitions, and / or terminology used in the accompanying materials are inconsistent with or conflict with the content of this application, the descriptions, definitions, and / or terminology used in this application will control.

[0094] The above is a detailed introduction to the technical solutions provided in the embodiments of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core ideas. At the same time, for those skilled in the art, according to the ideas of the present invention, there may be changes in the specific implementation methods and application scopes. In summary, the contents of this specification should not be understood as limiting the present invention.

Claims

1. A patterned coating structure, characterized in that: include Housing (1); An electroplated metal layer (2) is transferred and arranged on the housing (1), and the electroplated metal layer (2) forms a patterned structure on a local area of ​​the housing (1), wherein a first gap (5) is provided between at least a portion of an edge (21) of the electroplated metal layer (2) and the housing (1), and the first gap is a channel portion arranged at continuous intervals; an adhesive layer (4) covering the electroplated metal layer (2), wherein the adhesive layer (4) partially penetrates into the first gap (5) and bonds the electroplated metal layer (2) and the housing (1); A protective varnish layer (3) is bonded to the adhesive layer (4), and a vertical projection of the protective varnish layer (3) on the adhesive layer (4) at least covers the electroplated metal layer (2).

2. The patterned coating structure according to claim 1, characterized in that: The first gap (5) is continuously arranged along the edge (21) of the electroplated metal layer (2).

3. The patterned coating structure according to claim 1, wherein: The cross section of the first gap (5) presents a gradually expanding structure along a first direction, and the first direction is the direction in which the electroplated metal layer (2) extends from the middle to the edge (21).

4. The patterned coating structure according to claim 1, wherein: The bonding layer (4) has an extension portion (33) extending outward to between the outer shell (1) and the protective lacquer layer (3); one side of the extension portion (33) is bonded to the outer shell (1), and the other side is bonded to the protective lacquer layer (3).

5. The patterned coating structure according to claim 1, wherein: The protective lacquer layer (3) comprises a first protective sublayer (31) and a second protective sublayer (32) sequentially stacked on the electroplated metal layer (2); wherein the first protective sublayer (31) is made of a polyurethane resin material, and the second protective sublayer (32) is made of a photocurable material.

6. The patterned coating structure according to claim 1, characterized in that: The electroplated metal layer (2) is a colorful metal layer, and the protective paint layer (3) is made of a transparent material or a semi-transparent material.

7. A method for manufacturing a patterned coating structure, characterized in that: The following steps are involved: Providing a housing (1); An electroplated metal layer (2) is transferred onto the housing (1), and the electroplated metal layer (2) forms a patterned structure on a local area of ​​the housing (1), wherein a first gap (5) is provided between at least a portion of an edge (21) of the electroplated metal layer (2) and the housing (1), and the first gap is a channel portion provided at continuous intervals; Spraying a pretreatment agent on the surface of the electroplated metal layer (2) and at least a portion of the housing (1), and partially penetrating the pretreatment agent into the first gap (5); The pretreatment agent is cured to form an adhesive layer (4), wherein the adhesive layer (4) fills the first gap (5) and bonds the electroplated metal layer (2) and the housing (1); A protective varnish layer (3) is formed on the electroplated metal layer (2), and a vertical projection of the protective varnish layer (3) on the adhesive layer (4) at least covers the electroplated metal layer (2).

8. The method for manufacturing a patterned coating structure according to claim 7, wherein: The pretreatment agent comprises the following components by mass percentage: 45-50% modified polyurethane acrylate, 8-12% DAA, 3-7% anti-white water, 8-12% isopropyl alcohol, 12-17% butyl acetate, 10-15% ethyl acetate; The housing (1) is made of plastic material, and the protective paint layer is made of PU paint or UV paint.

9. The method for manufacturing a patterned coating structure according to claim 7, wherein: The step of forming the protective paint layer (3) comprises: A first protective sublayer (31) is coated on the electroplated metal layer (2) and the housing (1), and then baked and cooled. The first protective sublayer (31) is baked using a descending step temperature.

10. The method for manufacturing a patterned coating structure according to claim 7, wherein: The step of transferring and arranging the electroplated metal layer (2) on the housing comprises: providing a substrate; electroplating a first film layer on the substrate; A transfer mold having a pattern corresponding to the electroplated metal layer (2) is provided, and at least a portion of the first film layer is transferred onto the housing (1) through the transfer mold to form the electroplated metal layer.

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