In-mold rubbing three-dimensional texture injection molding part and product thereof

Abstract

The injection molding part structurally comprises an injection molding part body, the injection molding part body is at least provided with a first surface and a second surface which are oppositely arranged in the thickness direction, and the first surface or the second surface is provided with three-dimensional textures. The three-dimensional texture is formed by injection molding and coining a metal nickel deposition layer on the first surface or the second surface, and the metal nickel deposition layer is fixed in a cavity of an injection mold; a plating layer is also arranged on the outer side surface of the three-dimensional texture, and the plating layer is a vacuum coating layer or a chemical water plating layer; the technical scheme has the advantages that different display effects can be given to the three-dimensional texture, the texture layer abrasion caused by direct exposure of the texture layer is avoided, deformation of the three-dimensional texture in the high-temperature injection molding process can be effectively avoided, and the method is suitable for mass production.

Description

Technical Field

[0001] The present application relates to the technical field of product exterior finishes, and particularly to an in-mold transfer three-dimensional texture injection molded part and its product. Background Art

[0002] Through the in-mold transfer process, a three-dimensional texture shape can be directly formed on the surface of an injection molded part. However, in the existing in-mold transfer process, the three-dimensional texture is first combined with a plastic carrier layer using UV glue, and then the two are put into an injection mold for high-temperature and high-pressure injection. The raw material of the injection molded part is imprinted with the three-dimensional texture formed by the UV glue, thereby transferring the three-dimensional texture to the injection molded part. For the three-dimensional texture obtained by this solution, since the structure of the three-dimensional texture layer is made of plastic material, the three-dimensional texture will deform during the high-temperature and high-pressure injection process, and cannot be reused, resulting in the inability to mass-produce. Moreover, due to the possible deformation of the texture, the process of imprinting and transferring the texture with the raw material of the injection molded part results in a poor transfer effect of the three-dimensional texture. Furthermore, a three-dimensional texture is directly formed on the surface of the injection material without any other treatment, and the imprinted three-dimensional texture is directly used as the outer display surface. In this way, since the three-dimensional texture is directly exposed on the outer surface, the three-dimensional texture is easily worn and has a short service life. Moreover, this process cannot endow the three-dimensional texture with different display effects, such as metallic texture, color matching, etc. It can only be adjusted through injection molding particles, which affects the performance of the injection molded part and is not easy to adjust. Summary of the Utility Model

[0003] In view of the above deficiencies of the prior art, the present application provides an in-mold transfer three-dimensional texture injection molded part that can endow the three-dimensional texture with different display effects, avoid the wear of the texture layer caused by directly exposing the texture layer, and can effectively prevent the three-dimensional texture from deforming during high-temperature injection molding, and is suitable for mass production.

[0004] To solve the above technical problems, the technical solution adopted in the present application is: an in-mold transfer three-dimensional texture injection molded part, the structure of the injection molded part includes an injection molded part body. The injection molded part body has at least a first surface and a second surface that are oppositely arranged along the thickness direction. A three-dimensional texture is provided on the first surface or the second surface. The three-dimensional texture is formed by injection molding and imprinting a metal electroless nickel plating layer on the first surface or the second surface. The metal electroless nickel plating layer is fixed in the cavity of the injection mold. A plating layer is further provided on the outer side surface of the three-dimensional texture. The plating layer is a PVD vacuum plating layer or a chemical electroplating layer.

[0005] With the above structure, the three-dimensional texture on the injection molded part of the present application is formed by injection molding and imprinting with a metal electroless nickel plating layer. Compared with the three-dimensional texture structure formed by combining a UV glue and a carrier layer of a plastic part used in the prior art, the metal electroless nickel plating layer can maintain a more stable three-dimensional texture effect under high temperature and high pressure environments. Therefore, the three-dimensional texture obtained by transfer printing is not easily deformed, and the accuracy and clarity of the three-dimensional texture can be ensured. Moreover, since a metal electroless nickel plating layer structure is used, the structure can be fixedly connected to the mold cavity, maintain a stable position during the injection molding process, and can be used repeatedly without replacement. Therefore, it can be adapted to the preparation of a large number of injection molded parts with three-dimensional textures, saving costs. The three-dimensional texture formed by imprinting the metal electroless nickel plating layer on the surface of the injection molded part has a more shiny texture presentation due to its accurate and delicate texture without deformation. In addition, a plating layer is provided on the outer surface of the three-dimensional texture of the injection molded part body. This plating layer structure can effectively protect the three-dimensional texture and prevent it from being directly in contact with the outside world, thereby preventing its wear. Moreover, for this plating layer structure, the raw material particles of the PVD vacuum plating layer or the chemical hydroplating layer can be filled into the tiny grooves with micro unevenness of the three-dimensional texture, thereby preventing the subsequent processing steps from filling the micro texture and affecting the presentation effect of the three-dimensional texture. In addition, the setting of this plating layer structure can endow the injection molded part with a very realistic metallic color and can also be used to display different colors of the three-dimensional texture without adding various additives to the raw materials of the injection molded part, so it will not affect the performance of the injection molded part.

[0006] Further, the metal electroless nickel plating layer includes a first attachment surface and a second attachment surface disposed opposite to each other in the thickness direction. The first attachment surface is fixedly connected to the inner wall of the cavity of the injection mold, and the second attachment surface has a metal three-dimensional texture. The metal three-dimensional texture is used for injection molding and imprinting with the injection molded part body to form a three-dimensional texture on the first surface or the second surface of the injection molded part body. With the above structure, a metal three-dimensional texture is provided on one attachment surface of the metal electroless nickel plating layer, which is equivalent to a complete metal texture mold. After injecting the raw materials of the injection molded part into the mold cavity, it can be combined with the raw materials by imprinting and transfer the texture to the injection molded part body. This structure has a high reuse rate and is suitable for large-scale industrial production, and the texture of the metal electroless nickel plating layer is not easily deformed.

[0007] Further, the metal three-dimensional texture is formed by depositing a nickel layer on a surface in the thickness direction of a base metal electroless nickel plating layer. A three-dimensional texture is provided on a surface in the thickness direction of the base metal electroless nickel plating layer, and the deposited nickel is deposited on the three-dimensional texture. With this structure, a nickel layer can be deposited on the outside of the base metal electroless nickel plating layer with a three-dimensional texture to form a metal electroless nickel plating layer based on the base metal electroless nickel plating layer, thereby transferring the three-dimensional texture of the base metal electroless nickel plating layer to the metal electroless nickel plating layer.

[0008] Furthermore, the base metal nickel deposition layer is composed of a nickel layer deposited on one surface in the thickness direction of the release layer. The release layer includes a carrier layer and a UV three-dimensional texture layer attached to one surface on the thickness direction side of the carrier layer. A vacuum coating layer is attached to the outer surface of the UV three-dimensional texture layer, and the base metal nickel deposition layer is attached to the outer surface of the vacuum coating layer. With the above structure, by setting a UV three-dimensional texture layer on the carrier layer and then setting a vacuum coating layer, the UV three-dimensional texture layer is covered in the middle. When the release layer with a vacuum coating layer is placed in a nickel deposition bath to prepare the base metal nickel deposition layer, the UV three-dimensional texture can be prevented from being corroded by the nickel plating solution, effectively protecting the integrity of the three-dimensional texture. Moreover, the setting of the vacuum coating layer can also facilitate the subsequent peeling of the base metal nickel deposition layer from its surface, making the separation more thorough. In addition, the setting of the vacuum coating layer can also play a conductive role to provide support for the formation of the subsequent nickel deposition layer. And the vacuum coating layer of the present application can also increase the brightness of the subsequent three-dimensional texture, making the three-dimensional texture have a more reasonable display effect. Moreover, in the high-temperature and high-pressure injection molding process of the present application, the metal nickel deposition layer and the injection molding raw material are used for imprinting to realize the transfer of the three-dimensional texture, and the release layer composed of the carrier layer and the UV three-dimensional texture layer does not participate in in-mold injection molding, so it is not easy to deform and can be reused repeatedly after being torn off.

[0009] Further, the thickness of the vacuum coating layer is 50-100 microns. With this structure, the UV three-dimensional texture layer can be covered to avoid corrosion in the nickel deposition bath. Moreover, the texture effect of the UV three-dimensional texture can be maintained. The vacuum coating layer with this thickness still follows the uneven gaps of the UV three-dimensional texture and maintains the three-dimensional texture effect of the UV three-dimensional texture at the microscopic level.

[0010] Further, the vacuum coating layer is a nickel plating layer or an aluminum plating layer, that is, a metal coating layer structure is plated on the surface of the UV three-dimensional texture layer with micro-nano metal particles.

[0011] Further, the thickness of the metal nickel deposition layer or the base metal nickel deposition layer is 1-50 mm.

[0012] Further, the metal nickel deposition layer is welded to the cavity of the injection mold.

[0013] Further, the injection molded part body is injection molded from transparent material particles or transparent colored material particles.

[0014] Further, the carrier layer is made of one of the materials of PC (polycarbonate), PET (polyethylene terephthalate), ABS (acrylonitrile-butadiene-styrene copolymer), PVC (polyvinyl chloride), PP (polypropylene), PE (polyethylene) or PETG (co-extruded film-grade unidirectionally stretched preformed grade I polyester).

[0015] Further, the release layer is subjected to hot pressing or high-pressure forming treatment and then 3D circumferential cutting treatment to obtain a shape that is mutually adapted to the outer contour of the injection molded part to be molded.

[0016] Further, the thickness of the UV three-dimensional texture layer is 200-600 microns.

[0017] Furthermore, a functional layer is provided on the outer surface of the PVD vacuum coating layer or the chemical electroplating layer, and a LOGO layer is provided on the outer surface of the functional layer.

[0018] Furthermore, the functional layer is at least one of a gradient color layer, an AG layer, an AF layer or a varnish layer. Setting these functional layers can not only improve the surface function and different three-dimensional display effects of the injection molded part, but also effectively protect the internal electroplating layer from being worn or scratched.

[0019] Furthermore, an adhesive layer is provided on the outer surface of the LOGO layer, and a secondary injection molding layer is further provided on the outer surface of the adhesive layer; both the adhesive layer and the secondary injection molding layer are transparent layers; with the above structure, the display effect of the three-dimensional texture can be further improved. For example, the addition of the transparent secondary injection molding layer can increase the crystal three-dimensional display effect, and the touch of the secondary injection molding layer can also be adjusted. For example, an injection molding material with a hard touch or a flexible touch can be used to form the secondary injection molding layer to increase the touch of the outer surface of the overall injection molded part and provide more choices for users.

[0020] This application also provides a product containing the injection molded part with in-mold embossed three-dimensional texture. Specifically, the product includes interior and exterior automotive trim parts, furniture exterior finishes or electrical appliance exterior finishes, etc.; specifically, such as interior and exterior finishes of automobiles, and electrical appliances such as refrigerators, air conditioners, water heaters, steam ovens, water dispensers, range hoods, mobile phones, computers, floor sweeper decorative parts or daily chemical product decorative parts, etc. Description of the Drawings

[0021] Figure 1 Structural schematic diagram of the injection molded part with in-mold embossed three-dimensional texture of this application.

[0022] Figure 2 Structural schematic diagram of the injection molded part with in-mold embossed three-dimensional texture of this application (PVD vacuum coating layer).

[0023] Figure 3 Schematic diagram of the structure of the in-mold embossed three-dimensional texture injection molded part of the present application (chemical electroplated layer).

[0024] Figure 4 Schematic diagram of the structure of the flow chart of the secondary injection molding layer of the in-mold embossed three-dimensional texture injection molded part of the present application.

[0025] Figure 5 Schematic diagram of the structure of the in-mold embossed three-dimensional texture injection molded part after the secondary injection molding layer is compounded.

[0026] Figure 6 Schematic diagram of the structure of the flow chart of the in-mold injection molding and imprinting of the injection molded part material and the metal nickel plating layer of the present application.

[0027] Figure 7 Schematic diagram of the structure of the injection molded part after the injection molded part material and the metal nickel plating layer of the present application are injection molded and imprinted.

[0028] Figure 8 Schematic diagram of the structure of the injection molded part body taken out of the mold of the present application.

[0029] Figure 9 Schematic diagram of the structure of the flow chart of the combination of the metal nickel plating layer and the base metal nickel plating layer of the present application.

[0030] Figure 10 Schematic diagram of the structure of the combination of the metal nickel plating layer and the base metal nickel plating layer of the present application.

[0031] Figure 11 Schematic diagram of the structure of the metal nickel plating layer with three-dimensional texture obtained after separation from the base metal nickel plating layer of the present application.

[0032] Figure 12 Schematic diagram of the structure of the combination of the metal nickel plating layer and the mold of the present application.

[0033] Figure 13 Schematic diagram of the structure of the flow chart of the combination of the base metal nickel plating layer and the release layer of the present application.

[0034] Figure 14 Schematic diagram of the structure of the combination of the base metal nickel plating layer and the release layer of the present application.

[0035] Figure 15 Schematic diagram of the separation of the base metal nickel plating layer from the release layer of the present application.

[0036] Figure 16 Schematic diagram of the structure of the base metal nickel plating layer with three-dimensional texture prepared by the present application.

[0037] Figure 17 Schematic diagram of the structure of the flow chart of the formation of the release layer of the present application.

[0038] Figure 18Schematic diagram of the structure of the vacuum coating layer and the release layer in this application.

[0039] Figure 19 Schematic diagram of the structure after the vacuum coating layer and the release layer in this application are combined.

[0040] Figure 20 Schematic diagram of the structure of the release layer after forming with the vacuum coating layer set in this application.

[0041] As shown in the attached drawings: 1. Injection molded part body, 101. First surface, 102. Second surface, 103. Three-dimensional texture, 2. Metal electroless nickel plating layer, 201. First attachment surface, 202. Second attachment surface, 203. Metal three-dimensional texture, 3. Injection mold, 4. Coating layer, 401. PVD vacuum coating layer, 402. Chemical electroplating layer, 5. Base metal electroless nickel plating layer, 6. Release layer, 601. Carrier layer, 602. UV three-dimensional texture layer, 7. Vacuum coating layer, 8. Functional layer, 9. LOGO layer, 10. Adhesive layer, 11. Second injection molded layer. Detailed implementation manners

[0042] Next, the technical solutions in the embodiments of this application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments. Obviously, the described embodiments are only preferred embodiments, rather than all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this utility model;

[0043] In addition, it should be noted that: when a component is referred to as "fixed to" (and other similar expressions containing "fixed to") another component, it can be directly on the other component or there may also be another intermediate component for fixing through the intermediate component. When a component is considered to be "connected" (and other similar expressions containing "connected") to another component, it can be directly connected to the other component or there may be another intermediate component at the same time. When a component is considered to be "disposed on" (and other similar expressions containing "disposed on") another component, it can be directly disposed on the other component or there may be another intermediate component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this utility model belongs. The terms used in the description of this utility model herein are only for the purpose of describing specific embodiments and are not intended to limit this utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0044] As attached Figures 1-20As shown in the figure, an in-mold embossing three-dimensional texture injection molded part of the present application. The structure of the injection molded part includes an injection molded part body 1. The injection molded part body 1 has at least a first surface 101 and a second surface 102 that are oppositely arranged along the thickness direction. A three-dimensional texture 103 is provided on the first surface 101 or the second surface 102. The three-dimensional texture 103 is formed by injection molding and stamping a metal nickel plating layer 2 on the first surface 101 or the second surface 102 (that is, using the metal nickel plating layer as a mold for forming the three-dimensional texture. During the injection molding process, the injection molding material is injected into the mold cavity and combined with the metal nickel plating layer by injection molding and stamping, so as to transfer the three-dimensional texture on the metal nickel plating layer to the injection molded part). The metal nickel plating layer 2 is fixed in the cavity of the injection mold 3. A plating layer 4 is further provided on the outer side surface of the three-dimensional texture 103. The plating layer 4 is a PVD vacuum plating layer 401 or a chemical hydroplating layer 402 (that is, a vacuum plating layer formed by using the PVD vacuum plating process, and a chemical hydroplating layer formed by using the chemical hydroplating process (hydroplating process)).

[0045] With the above structure, the three-dimensional texture on the injection molded part of the present application is formed by injection molding and stamping with a metal nickel plating layer. Compared with the three-dimensional texture structure formed by combining a UV glue and a carrier layer of a plastic part used in the prior art, the metal nickel plating layer can maintain a more stable three-dimensional texture effect under high temperature and high pressure environments. Therefore, the transferred three-dimensional texture is not easily deformed, and the accuracy and clarity of the three-dimensional texture can be guaranteed. Moreover, since a metal nickel plating layer structure is adopted, this structure can be fixedly connected to the mold cavity, maintain a stable position during the injection molding process, and can be used repeatedly without replacement. Therefore, it can be adapted to the preparation of a large number of injection molded parts with three-dimensional textures, saving costs. The three-dimensional texture formed by stamping the metal nickel plating layer of the present application on the surface of the injection molded part has a more bright texture presentation due to its accurate and delicate texture without deformation. In addition, the present application also provides a plating layer on the outer surface of the three-dimensional texture of the injection molded part body. This plating layer structure can effectively protect the three-dimensional texture and prevent it from directly contacting the outside world, thereby preventing its wear. Moreover, in this plating layer structure, the raw material particles of the PVD vacuum plating layer or the chemical hydroplating layer can be filled into the tiny grooves with micro unevenness formed by the three-dimensional texture, so as to prevent the subsequent processing procedures from filling the micro texture and affecting the presentation effect of the three-dimensional texture. In addition, the setting of this plating layer structure can endow the injection molded part with a very realistic metallic color and can also be used to mix and display different colors of the three-dimensional texture without adding a variety of additives to the raw materials of the injection molded part, so it will not affect the performance of the injection molded part.

[0046] As shown in the attached drawings, the metal nickel deposition layer 2 described in this application includes a first attachment surface 201 and a second attachment surface 202 that are oppositely arranged in the thickness direction. The first attachment surface 201 is fixedly connected to the inner wall of the cavity of the injection mold 3 (which can be achieved by welding or bonding with an adhesive, etc. Among them, welding is preferably used. Both the metal nickel deposition layer and the injection mold are metal parts, which is convenient for welding. After welding, the position is more firm and not easily displaced, ensuring the accuracy of three-dimensional texture transfer and also facilitating separation from the injection molded part body). The second attachment surface 202 has a metal three-dimensional texture 203. The metal three-dimensional texture 203 is used for injection molding and imprinting with the injection molded part body 1 to form a three-dimensional texture 103 on the first surface 101 or the second surface 102 of the injection molded part body 1; With the above structure, a metal three-dimensional texture is provided on one attachment surface of the metal nickel deposition layer, which is equivalent to a complete metal texture mold. After injecting the raw material of the injection molded part into the mold cavity, it can be combined with the raw material by imprinting and transfer the texture to the injection molded part body; This structure has a high reuse rate, is suitable for large-scale industrial production, and the texture of the metal nickel deposition layer is not easily deformed.

[0047] As an example, as shown in the attached drawings, the metal three-dimensional texture 203 described in this application is formed by depositing a nickel layer on one surface in the thickness direction of the base metal nickel deposition layer 5 (using the electroless nickel plating process, plating a layer of metal nickel deposition layer on the base metal nickel deposition layer, and forming a three-dimensional texture structure on one surface of the metal nickel deposition layer); A three-dimensional texture (for transfer to the metal nickel plating layer) is provided on one surface in the thickness direction of the base metal nickel deposition layer 5, and the deposited nickel is deposited on this three-dimensional texture; With this structure, the base metal nickel deposition layer can be used as a basis, and then a layer of nickel is deposited on its outer surface with a three-dimensional texture to form a metal nickel deposition layer, thereby transferring the three-dimensional texture of the base metal nickel deposition layer to the metal nickel deposition layer; After the base metal nickel deposition layer and the metal nickel deposition layer of this application are completed with nickel deposition, the two can be easily separated, thereby transferring the three-dimensional texture of the base metal nickel deposition layer to one surface of the metal nickel deposition layer. The separation of the two is determined by the electroless nickel plating process itself and will not be described in detail here.

[0048] As shown in the attached drawings, the base metal nickel deposit layer 5 described in this application is composed of a nickel layer deposited on one surface in the thickness direction of the release layer 6 (i.e., a layer of base metal nickel deposit layer is formed on one surface of the release layer through electroless nickel plating process). The release layer 6 includes a carrier layer 601 and a UV three-dimensional texture layer 602 attached to one surface on the thickness direction side of the carrier layer 601. A vacuum coating layer 7 is attached to the outer surface of the UV three-dimensional texture layer 602 (i.e., a structure formed through vacuum coating process, which is a conventional vacuum plating process and will not be described in detail here). The base metal nickel deposit layer 5 is attached to the outer surface of the vacuum coating layer 7. With the above structure, by setting a UV three-dimensional texture layer on the carrier layer and then setting a vacuum coating layer, the UV three-dimensional texture layer is covered in the middle. In this way, when the release layer with a vacuum coating layer is placed in a nickel plating bath to deposit nickel to prepare the base metal nickel deposit layer, the UV three-dimensional texture can be prevented from being corroded by the nickel plating solution used for nickel deposition, effectively protecting the integrity of the three-dimensional texture. Moreover, the setting of the vacuum coating layer can also facilitate the subsequent peeling of the base metal nickel deposit layer from its surface, making the separation more complete. In addition, the setting of the vacuum coating layer can also play a conductive role to provide support for the formation of the subsequent nickel deposit layer. Moreover, the vacuum coating layer of this application can also increase the brightness of the subsequent three-dimensional texture, making the three-dimensional texture have a more reasonable display effect. Moreover, in the high-temperature and high-pressure injection molding process of this application, the metal nickel deposit layer is used to transfer the three-dimensional texture through imprinting with the injection molding raw material, and the release layer composed of the carrier layer and the UV three-dimensional texture layer does not participate in in-mold injection molding, so it is not easy to deform and can be reused repeatedly after being torn off.

[0049] As an example, the thickness of the vacuum coating layer 7 described in this application is 50 - 100 microns. With this structure, it can not only cover the UV three-dimensional texture layer (the thickness of the UV three-dimensional texture layer is between 200 - 600 microns) to avoid corrosion in the nickel plating bath, but also maintain the texture effect of the UV three-dimensional texture. The vacuum coating layer with this thickness still follows the uneven gaps of the UV three-dimensional texture and undulates microscopically, maintaining the three-dimensional texture effect of the UV three-dimensional texture.

[0050] As an example, the vacuum coating layer 7 described in this application is a nickel plating layer or an aluminum plating layer (i.e., a coating layer is formed by using micro-nano level nickel particles or aluminum particles for vacuum coating process), that is, a metal coating layer structure is plated on the surface of the UV three-dimensional texture layer by using micro-nano level metal particles.

[0051] As an example, the thickness of the metal nickel deposit layer 2 or the base metal nickel deposit layer 5 described in this application is 1 - 50 mm.

[0052] As an example, the metal nickel deposit layer described in this application is welded to the cavity of the injection mold.

[0053] As an example, the injection molded part body 1 described in the present application is injection molded from transparent material particles or transparent colored material particles.

[0054] As an example, the carrier layer 601 described in the present application is made of one of the materials of PC (polycarbonate), PET (polyethylene terephthalate), ABS (acrylonitrile-butadiene-styrene copolymer), PVC (polyvinyl chloride), PP (polypropylene), PE (polyethylene) or PETG (coextruded film grade uniaxially stretched preformed grade I polyester).

[0055] As an example, after the release layer 6 described in the present application is subjected to hot pressing or high-pressure forming treatment, a 3D circumferential cutting treatment is carried out to obtain a shape that matches the outer contour of the part to be injection molded; that is, through the forming treatment, it matches the outer contour of the injection molded part to be injection molded, and then the prepared electroless nickel plating layer on the metal also matches the outer contour of the injection molded part to be injection molded, is placed in the mold cavity, and finally an injection molded part product with a specific structural shape is obtained.

[0056] As an example, the thickness of the UV three-dimensional texture layer described in the present application is 200-600 microns.

[0057] As shown in the attached drawings, a functional layer 8 is provided on the outer surface of the PVD vacuum plating layer 401 or the chemical electroplating layer 402 described in the present application, and a LOGO layer 9 (ordinary LOGO, pasted on the outside of the functional layer, or gold stamping LOGO; or the LOGO of a function key, which can be a commercially available LOGO structure with bonding properties) is provided on the outer surface of the functional layer 8.

[0058] As shown in the attached drawings, the functional layer 8 described in the present application is one of a gradient color layer, (matte), AF layer (abbreviation for Anti-Fingerprint, which is an anti-fingerprint film, has an anti-fingerprint effect, strong anti-fouling ability, and easy cleaning and waterproof performance) or a varnish layer (such as a transparent UV varnish layer). Setting these functional layers can not only improve the surface function and different three-dimensional display effects of the injection molded part, but also effectively protect the internal electroplating layer from being worn or scratched; the above-mentioned functional layer is in a transparent or semi-transparent state so that the three-dimensional texture can be effectively presented.

[0059] As shown in the attached drawings, an adhesive layer 10 is provided on the outer surface of the LOGO layer 9 described in the present application, and a secondary injection molding layer 11 is further provided on the outer surface of the adhesive layer 10; both the adhesive layer 10 and the secondary injection molding layer 11 are transparent layers; with the above structure, the display effect of the three-dimensional texture can be further improved. For example, due to the addition of the transparent secondary injection molding layer, the crystal three-dimensional display effect can be increased, and the touch of the secondary injection molding layer can also be adjusted. For example, an injection molding material with a hard touch or a flexible touch can be used to form the secondary injection molding layer, increasing the touch of the outer surface of the overall injection molded part and providing more choices for users; specifically, when the injection molded part body provided with the LOGO layer is placed in the mold cavity for secondary injection molding, an adhesive layer is first bonded, and then secondary injection molding is carried out, so that the connection between the secondary injection molding layer and the injection molded part body is more firm; the thickness of the secondary injection molding layer of the present application can be 0.1 - 5 mm; each layer structure located on the outer surface of the three-dimensional texture of the injection molded part body of the present application can be in a transparent or semi-transparent state to avoid covering the texture.

[0060] The present application also provides a product containing the above-mentioned in-mold embossed three-dimensional texture injection molded part. Specifically, the product includes automotive interior and exterior trim parts, furniture exterior finishes, or electrical appliance exterior finishes, etc.; specifically, such as automotive interior and exterior finishes, electrical appliances such as refrigerators, air conditioners, water heaters, steam ovens, water dispensers, range hoods, mobile phones, computers, floor sweeper decorative parts, or daily chemical product decorative parts, etc.

[0061] The UV three-dimensional texture layer of the present application can be prepared by a 3D multi-channel three-dimensional texture mold process, that is, UV glue is attached to the mold, and then a carrier layer is covered. The texture of the mold is imprinted on the UV coating (UV glue), and then the imprinted UV coating is photocured using a UV light source. After curing is completed, the master plate is removed to obtain a carrier layer with the master plate pattern, and the excess UV glue on the carrier layer is removed. Specifically, reference can be made to the specific content of "Preparation method of multi-channel 3D nano texture and three-dimensional LOGO mold" or "Preparation method of multi-channel 3D nano texture mold" or a nano texture mold preparation disclosed in 201910529441.3; the UV three-dimensional texture layer of the present application can adopt a similar process.

[0062] Using attachment Figures 2-3(Without setting the LOGO layer) The picture of the real product obtained by the described solution shows the structure of the injection molded part with a silver metallic texture as the background color. The silver is formed on the surface of the injection molded part with three-dimensional texture through the PVD vacuum coating process; it can be seen from this picture that this type of injection molded part can present an ideal three-dimensional texture effect, and the three-dimensional texture has a bright surface and metallic texture, and the texture is precise, delicate and realistic. Therefore, the injection molded part with three-dimensional texture obtained by the technical solution of this application can present an ideal texture shape; the technical solution of this application is the first to transfer the three-dimensional texture onto the surface of the injection molded part through a metal nickel deposition layer in the mold, and then a transparent or semi-transparent coating structure is set outside the three-dimensional texture; because the nickel deposition layer is metallic in texture, it can be firmly connected to the hardware mold through welding, and then the injection molding material is injected to obtain an ideal three-dimensional texture display effect, and it can also be injected in large batches repeatedly, and the quality of the obtained injection molded part products is uniform and the production efficiency is high; moreover, the three-dimensional texture of the injection molded part with this structure in this application is effectively covered and protected by the coating or the coating and the functional layer (transparent or semi-transparent), and does not directly contact the outside world, so the three-dimensional texture is not easily worn; adding a coating or adding a functional layer at the same time to the outer surface of the three-dimensional texture obtained by imprinting in the mold in this application can endow the three-dimensional texture with different colors or tactile feelings, and the display effect of the obtained three-dimensional texture is more diverse and rich.

Claims

1. An in-mold rubbing three-dimensional texture injection molded part, characterized in that: The structure of the injection molded part includes an injection molded part body, wherein the injection molded part body has at least a first surface and a second surface arranged opposite to each other in the thickness direction, and the first surface or the second surface has a three-dimensional texture, and the three-dimensional texture is formed by a metal nickel plating layer injection-molded and imprinted on the first surface or the second surface, and the metal nickel plating layer is fixed in the cavity of the injection mold; a coating is also provided on the outer side of the three-dimensional texture, and the coating is a PVD vacuum coating layer or a chemical water electroplating layer.

2. The in-mold rubbing three-dimensional texture injection molded part according to claim 1, characterized in that: The metal nickel plating layer includes a first attachment surface and a second attachment surface which are arranged opposite to each other in the thickness direction. The first attachment surface is fixedly connected to the inner wall of the cavity of the injection mold, and the second attachment surface has a metal three-dimensional texture. The metal three-dimensional texture is used for injection molding and stamping with the injection molded part body to form a three-dimensional texture on the first surface or the second surface of the injection molded part body.

3. The in-mold rubbing three-dimensional texture injection molded part according to claim 2, characterized in that: The metal three-dimensional texture is composed of a surface-deposited nickel layer in the thickness direction of the basic metal nickel deposition layer; a three-dimensional texture is arranged on a surface in the thickness direction of the basic metal nickel deposition layer, and the deposited nickel is deposited on the three-dimensional texture.

4. The in-mold rubbing three-dimensional texture injection molded part according to claim 3, characterized in that: The basic metal nickel deposition layer is composed of a nickel layer deposited on a surface in the thickness direction of the release layer, the release layer includes a carrier layer, a UV three-dimensional texture layer attached to one side surface of the carrier layer in the thickness direction, a vacuum coating layer is attached to the outer surface of the UV three-dimensional texture layer, and the basic metal nickel deposition layer is attached to the outer surface of the vacuum coating layer.

5. The in-mold rubbing three-dimensional texture injection molded part according to claim 4, characterized in that: The thickness of the vacuum coating layer is 50-100 microns, the thickness of the UV three-dimensional texture layer is 200-600 microns; the thickness of the metal nickel deposition layer or the basic metal nickel deposition layer is 1-50 mm.

6. The in-mold rubbing three-dimensional texture injection molded part according to claim 4, characterized in that: The vacuum coating layer is a nickel-plated layer or an aluminum-plated layer; the metal nickel-plated layer is welded in the cavity of the injection mold; the injection molded part body is made of transparent material particles or transparent colored material particles by injection molding; the carrier layer is made of a material selected from PC, PET, ABS, PVC, PP, PE or PETG.

7. The in-mold rubbing three-dimensional texture injection molded part according to claim 4, characterized in that: The release layer is subjected to a heat pressing or high pressure forming process and then a 3D ring cutting process to obtain a shape that matches the outer contour of the injection molded part.

8. The in-mold rubbing three-dimensional texture injection molded part according to claim 3, characterized in that: The outer surface of the PVD vacuum coating layer or the chemical water electroplating layer is provided with a functional layer, and the outer surface of the functional layer is provided with a LOGO layer.

9. The in-mold rubbing three-dimensional texture injection molded part according to claim 8, characterized in that: The functional layer is at least one of a gradient color layer, an AG layer, an AF layer or a varnish layer; the outer surface of the LOGO layer is provided with an adhesive layer, and the outer surface of the adhesive layer is also provided with a secondary injection molding layer; the adhesive layer and the secondary injection molding layer are both transparent layers.

10. A product comprising the in-mold rubbing three-dimensional texture injection molded part according to any one of claims 1 to 9, characterized in that: The product includes at least one of automobile interior and exterior decoration parts, furniture exterior finishing or electrical appliance exterior finishing.

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