Double-fixing rubbing injection molding part and product comprising same

Abstract

According to the double-fixing rubbing injection molding part and the product comprising the same, the plastic part structurally comprises an injection molding part body and a three-dimensional layer, and an adhesive layer is arranged between the injection molding part body and the three-dimensional layer; the three-dimensional layer comprises a LOGO layer, a color layer, a first UV three-dimensional texture layer and an easy-to-tear layer; the color layer is attached to the binder layer, the LOGO layer is attached to the color layer, the first UV three-dimensional texture layer is arranged on the outer side of the LOGO layer, the easy-to-tear layer is arranged on the outer side of the first UV three-dimensional texture layer, the easy-to-tear layer comprises a base body layer and a second UV three-dimensional texture layer arranged on the base body layer, and the second UV three-dimensional texture layer is arranged on the base body layer. The second UV three-dimensional texture layer is attached to the first UV three-dimensional texture layer, so that the three-dimensional texture is transferred to the first UV three-dimensional texture layer; the three-dimensional texture display method has the advantages of being not prone to deformation and capable of maintaining a stable three-dimensional texture display effect.

Description

Technical Field

[0001] The present application relates to the technical field of product exterior finishes, and more specifically to a double-solid rubbing injection molded part and a product containing the same. Background Art

[0002] In order to form realistic three-dimensional textures on the surface of plastic parts, the existing technology achieves this through a simulated rubbing process, and the general process is as follows: first, a diaphragm with a three-dimensional texture is prepared, and then the diaphragm is pressed into shape and placed in a mold cavity, an adhesive layer is arranged on the side of the diaphragm that contacts the injection molding material, and then molten injection molding material is injected into the mold cavity, and the three-dimensional texture on the diaphragm is hot-pressed and composited to the injection molding material through the high-pressure environment inside the mold, thereby obtaining a final injection molded part with a three-dimensional texture finish; however, the injection molded part obtained by this process has a three-dimensional texture layer made of a layer of UV glue, and this UV glue material has a large difference in material properties between it and the injection molded part, so that the deformation force or deformation degree of the two are inconsistent during subsequent use, which may cause defects such as peeling and warping between the UV three-dimensional texture layer and the injection molded part body.

[0003] In addition, due to the problem of inconsistent deformation of the UV three-dimensional texture layer, the above-mentioned traditional in-mold rubbing process is often unable to form a LOGO and / or color display effect on the three-dimensional texture in order to make it fit the injection molded part well. If a LOGO and / or color display is to be obtained, the LOGO is often additionally bonded to the display surface of the UV three-dimensional texture layer, or the color change is achieved by injecting masterbatch into the main material of the injection molded part. The above-mentioned methods are likely to cause scratches on the LOGO, and the addition of masterbatch not only increases the subsequent injection molding process, but also may change the performance of the injection molded part. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the present application provides a double-solid rubbing injection molded part which is not easily deformed and can maintain a stable three-dimensional texture display effect.

[0005] In order to solve the above technical problems, the technical solution adopted in the present application is: a double-solid rubbing injection molded part, the structure of which includes an injection molded part body and a three-dimensional layer, an adhesive layer is arranged between the injection molded part body and the three-dimensional layer; the three-dimensional layer includes a color layer, a LOGO layer, a first UV three-dimensional texture layer and an easy-tear layer; the color layer is bonded to the adhesive layer, the LOGO layer is bonded to the color layer, the first UV three-dimensional texture layer is placed on the outside of the LOGO layer, the easy-tear layer is placed on the outside of the first UV three-dimensional texture layer, the easy-tear layer includes a base layer and a second UV three-dimensional texture layer arranged on the base layer, the UV three-dimensional texture layer and the first UV three-dimensional texture layer are bonded to each other so that the three-dimensional texture is transferred to the first UV three-dimensional texture layer.

[0006] Furthermore, the first UV three-dimensional texture layer is an IR thermosetting UV three-dimensional texture layer (it may be a three-dimensional texture layer prepared by an IR thermosetting ink material).

[0007] By adopting the above structure, the present application uses the injection molded part with this specific composition structure to form a first UV three-dimensional texture layer on the outer surface of the injection molded part body, and the LOGO layer and the color layer are both located between the adhesive layer and the first UV three-dimensional texture layer, and will not be directly exposed, so it is not easy to be scratched; and the first UV three-dimensional texture layer can be given different color display effects by setting the color layer, and there is no need to set masterbatch in the injection molded part body, which simplifies the process and does not affect the performance of the injection molded part; in addition, the present application places the easy-tear layer on the first UV three-dimensional texture layer, and transfers the texture on the UV three-dimensional texture layer in the easy-tear layer to the first UV three-dimensional texture layer through in-mold rubbing to form a three-dimensional texture effect. After the injection molding is completed, the easy-tear layer containing the UV three-dimensional texture layer is directly torn off, and only the first UV three-dimensional texture layer is retained to be combined with the injection molded part body, so that the deformation of the traditional UV three-dimensional texture layer can be avoided, and the first UV three-dimensional texture layer can be firmly bonded to the injection molded part. More importantly, the first UV three-dimensional texture layer is not easy to deform, thereby ensuring the stability of the three-dimensional texture and extending the service life.

[0008] Furthermore, the first UV three-dimensional texture layer is a transparent layer or a semi-transparent layer; with this structure, the color layer and the LOGO layer covered thereunder can be well displayed, giving the three-dimensional texture a more diverse display effect.

[0009] Furthermore, the color layer comprises at least two layers; this not only can provide a three-dimensional texture color display effect, but also can prevent the color of the injection molded part from being exposed, thereby improving the stability of the color display.

[0010] Furthermore, the first UV three-dimensional texture layer is formed by a screen printing process or a coating process; when the prepared product quantity is large, the coating process can be used, and when the product quantity is small, the screen printing process can be used; these processes can also better combine the first UV three-dimensional texture layer with the easy-tear layer, and also facilitate the subsequent removal of the easy-tear layer.

[0011] Furthermore, the thickness of the first UV three-dimensional texture layer is 2-25 microns. With a structure of this thickness, the UV three-dimensional texture can be fully transferred and deformation due to excessive thickness of the material can be avoided.

[0012] Furthermore, the thickness of the first UV three-dimensional texture layer is 3-8 microns. With a structure of this thickness, the UV three-dimensional texture can be fully transferred and deformation due to excessive thickness of the material can be avoided.

[0013] Furthermore, the thickness of the first UV three-dimensional texture layer is 15-25 microns. With a structure of this thickness, the UV three-dimensional texture can be fully transferred and deformation due to excessive thickness of the material can be avoided.

[0014] Furthermore, the base layer is a plate made of PC, PET, ABS, PVC, PP, PETG or PMMA material; this structure can facilitate the combination between it and the UV three-dimensional layer.

[0015] Furthermore, the present application also provides a product containing the above-mentioned dual-solid rubbing injection molded parts, which product includes large and small household appliances, furniture, 3C products or automobile interiors, such as refrigerators, air conditioners, water heaters, steam ovens, water dispensers, range hoods, mobile phones, computers or automobile interiors, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the structure of the injection molded part of this application.

[0017] Figure 2 Schematic diagram of the structure of the injection molded part body combined with the three-dimensional layer of the present application.

[0018] Figure 3 Schematic diagram of the structure of the injection molded part and the three-dimensional layer combined in this application.

[0019] Figure 4 Schematic diagram of the structure of the combination of the base layer and the UV three-dimensional texture layer in the easy-tear layer of the present application.

[0020] Figure 5 Schematic diagram of the structure of the easy-tear layer of the present application.

[0021] Figure 6 Schematic diagram of the structure of the easy-tear layer combined with the IR thermosetting UV glue layer of the present application.

[0022] Figure 7 A schematic structural diagram of a flow chart of a structural layer used in the present application for combining with an injection molded part.

[0023] Figure 8 Schematic diagram of the structure of the structural layer of this application.

[0024] Fig. 9 Schematic diagram of the structure after the structural layer of the present application is formed.

[0025] As shown in the attached figure: 1. Injection molded part body, 2. Three-dimensional layer, 201. LOGO layer, 202. Color layer, 203. First UV three-dimensional texture layer, 204. Easy-tear layer, 205. Base layer, 206. UV three-dimensional texture layer, 3. Adhesive layer. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments. Obviously, the described embodiments are only preferred embodiments, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model;

[0027] It should also be noted that when a component is referred to as being "fixed to" (and other similar ways of "fixed to") another component, it may be directly on the other component or there may be another intermediate component, fixed through the intermediate component. When a component is considered to be "connected" (and other similar ways of "connected") to another component, it may 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 "set on" (and other similar ways of "set on") another component, it may be directly set 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 for illustrative purposes only. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by technicians in the technical field of the present utility model. The terms used in the specification of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0028] As attached Figure 1-9As shown, a double-solid rubbing injection molded part of the present application has a structure comprising an injection molded part body 1 and a three-dimensional layer 2, an adhesive layer 3 is arranged between the injection molded part body 1 and the three-dimensional layer 2; the three-dimensional layer 2 comprises a LOGO layer 201, a color layer 202, a first UV three-dimensional texture layer 203 and an easy-tear layer 204; the color layer 202 is laminated with the adhesive layer 3, the LOGO layer 201 is laminated with the color layer 202, the first UV three-dimensional texture layer 203 is placed on the outside of the LOGO layer 201, the easy-tear layer 204 is placed on the outside of the first UV three-dimensional texture layer 203, the The easy-tear layer 204 includes a base layer 205 and a second UV three-dimensional texture layer 206 arranged on the base layer 205, and the second UV three-dimensional texture layer 206 is used to be bonded to the first UV three-dimensional texture layer 203 so that the three-dimensional texture is transferred to the first UV three-dimensional texture layer 203; specifically, a color layer, a LOGO layer, a first UV three-dimensional texture layer 203 and an easy-tear layer 204 are sequentially arranged on the outer surface on one side of the thickness extension direction of the adhesive layer; finally, the easy-tear layer needs to be torn off to retain only the first UV three-dimensional texture layer and other layer structures combined with the injection molded part body to form an injection molded part with a three-dimensional texture surface.

[0029] The first UV three-dimensional texture layer described in the present application is an IR thermosetting UV three-dimensional texture layer (specifically, it can be a three-dimensional texture layer prepared by an IR thermosetting ink material).

[0030] By adopting the above structure, the present application uses the injection molded part with this specific composition structure to form a first UV three-dimensional texture layer on the outer surface of the injection molded part body, and the LOGO layer and the color layer are both located between the adhesive layer and the first UV three-dimensional texture layer, and will not be directly exposed, so it is not easy to be scratched; and the first UV three-dimensional texture layer can be given different color display effects by setting the color layer, and there is no need to set masterbatch in the injection molded part body, which simplifies the process and does not affect the performance of the injection molded part; in addition, the present application places the easy-tear layer on the outside of the first UV three-dimensional texture layer, and transfers the texture on the UV three-dimensional texture layer in the easy-tear layer to the first UV three-dimensional texture layer through in-mold rubbing to form a three-dimensional texture effect. After the injection molding is completed, the easy-tear layer containing the UV three-dimensional texture layer is directly torn off, and only the first UV three-dimensional texture layer is retained to be combined with the injection molded part body, so that the deformation of the traditional UV three-dimensional texture layer can be avoided, and the first UV three-dimensional texture layer can be firmly bonded to the injection molded part. More importantly, the first UV three-dimensional texture layer is not easy to deform, thereby ensuring the stability of the three-dimensional texture and extending the service life.

[0031] As an example, the first UV three-dimensional texture layer 203 described in the present application is a transparent layer or a translucent layer (the first UV three-dimensional texture layer can be specifically formed by an oily commercially available ink (IR thermosetting ink) material with dual-solid properties of thermosetting and ultraviolet thermosetting, and is combined with other structural layers through coating or screen printing processes, which are conventional processes in the industry and will not be described in detail here); with this structure, the color layer and LOGO layer covering it can be well displayed, giving the three-dimensional texture a more diverse display effect; after the first UV three-dimensional texture layer is combined with the second UV three-dimensional texture layer through the above process, the three-dimensional texture on the second UV three-dimensional texture layer will be transferred to the first UV three-dimensional texture layer.

[0032] As attached Figure 1-3 As shown in 7-9, the color layer 202 described in the present application includes at least two layers; this can not only give a three-dimensional texture color display effect, but also avoid the exposure of the color of the injection molded part body, thereby improving the stability of the color display; the two color layers can be the same color or different colors; the specific color layer can also be combined with other structural layers through coating, screen printing or plating processes, and the pigment of the color layer can be a commercially available ink material with different colors.

[0033] As an example, the first UV three-dimensional texture layer 203 described in the present application is formed by a screen printing process or a coating process; when the prepared product quantity is large, the coating process can be used, and when the product quantity is small, the screen printing process can be used; these processes can also better combine the first UV three-dimensional texture layer with the easy-tear layer, and also facilitate the subsequent removal of the easy-tear layer.

[0034] As an example, the thickness of the first UV three-dimensional texture layer 203 described in the present application is 2-25 microns. With a structure of this thickness, the UV three-dimensional texture can be fully transferred and deformation caused by excessive thickness of the material can be avoided.

[0035] As an example, the thickness of the first UV three-dimensional texture layer 203 described in the present application is 3-8 microns. With a structure of this thickness, the UV three-dimensional texture can be fully transferred and deformation due to excessive thickness of the material can be avoided.

[0036] As an example, the thickness of the first UV three-dimensional texture layer described in the present application is 15-25 microns. With a structure of this thickness, the UV three-dimensional texture can be fully transferred and deformation caused by excessive thickness of the material can be avoided.

[0037] As an example, the base layer 205 described in the present application is a plate made of PC, PET, ABS, PVC, PP, PETG or PMMA material; adopting this structure can facilitate its combination with the UV three-dimensional layer (i.e., the UV three-dimensional texture layer 206).

[0038] The present application also provides a method for preparing a double-solid rubbing injection molded part, and the specific preparation steps include:

[0039] (1) First, a layer of UV texture is coated or embossed on the base layer 205 (that is, a layer of UV glue is coated on the three-dimensional mold, and the three-dimensional texture on the three-dimensional mold is transferred to the UV glue, and then one side of the base layer is covered on the UV glue, and the UV glue is firmly bonded to the base layer through UV curing, and the three-dimensional mold is removed to obtain a three-dimensional texture on the cured UV glue layer, and the UV glue at this time is the UV three-dimensional texture layer 206), forming an easy-to-tear layer 204;

[0040] (2) Then, a layer of IR thermosetting UV glue layer 203 is coated or screen-printed on the UV texture side of the easy-tear layer 204, and cured at 120-150° C., so that the IR thermosetting UV glue layer 203 is cured on the UV texture; after curing, a three-dimensional texture pattern complementary to the UV texture layer 206 is formed on the IR thermosetting UV glue layer 203;

[0041] (3) sequentially disposing a LOGO layer 201, a color layer 202 and an adhesive layer 3 on the IR thermosetting UV glue layer 203;

[0042] (4) Then the structure obtained in step (3) is subjected to hot pressing or high pressure forming (i.e., the structure layer is bent or folded by a conventional hot pressing or high pressure process in the industry to adapt to the inner cavity of the subsequent injection mold), so as to adapt to the cavity of the injection mold to be placed;

[0043] (5) placing the molded structure obtained in step (4) in a mold cavity of an injection mold (wherein one side of the adhesive layer is used to bond with the injection molding material, so that the main material of the injection molded part and the adhesive layer are fully bonded under the high temperature of the molten injection molding material), and then injecting the molten injection molding material into the injection molding cavity so that the injection molding material and the molded structure are bonded to each other;

[0044] (6) After the injection molded part is cooled, it is taken out and then UV-cured (this step is for secondary curing of the IR thermosetting UV glue layer 203) so that the IR thermosetting UV glue layer 203 is fully cured; then the easy-tear layer 204 is torn off to obtain an injection molded part product with a three-dimensional texture.

[0045] The thickness of the IR thermosetting UV glue layer described in the above process of the present application is 2-25 microns. With a structure of this thickness, the UV three-dimensional texture can be fully transferred and deformation caused by excessive thickness of the material can be avoided.

[0046] The present application also provides a product containing the above-mentioned dual-solid rubbing injection molded parts, which includes large and small household appliances, furniture, 3C products or automobile interiors, such as refrigerators, air conditioners, water heaters, steam ovens, water dispensers, range hoods, mobile phones, computers or automobile interiors, etc.

[0047] The UV three-dimensional texture layer (UV three-dimensional texture layer 206 in the easy-tear layer) of the present application can be prepared by a 3D multi-channel three-dimensional texture mold process, that is, a coating of UV glue is attached to the texture mold, and then the base layer is covered, the UV coating (UV glue) is embossed with the texture on the mold, and then the embossed UV coating is photocured using a UV light source, and the master (texture mold) is removed after curing to obtain a base layer with a three-dimensional texture pattern of the master, and excess UV glue on the base layer is removed. For details, please refer to the specific content of the "Preparation method of multi-channel 3D nanotexture and three-dimensional LOGO mold" or the "Preparation method of multi-channel 3D nanotexture mold"; the UV three-dimensional texture layer of the present application can adopt a similar process as mentioned above, where the UV three-dimensional texture layer can be in the thickness range of 10-200 microns; the thickness of the color layer of the present application can be between 0.125-0.25 microns; the LOGO layer of the present application can use a commercially available LOGO with bonding properties, which can be pasted to the corresponding structural layer.

[0048] The injection molded parts prepared by the process of the present application have an ideal three-dimensional textured exterior finish, and the three-dimensional texture layer fits very tightly with the injection molded part body, and can almost be regarded as one-piece molding. The hardness of the prepared product can be between 5-6H, and the surface is not easily scratched.

Claims

1. A double-solid rubbing injection molded part, characterized in that: The structure of the injection molded part includes an injection molded part body and a three-dimensional layer, an adhesive layer is arranged between the injection molded part body and the three-dimensional layer; the three-dimensional layer includes a LOGO layer, a color layer, a first UV three-dimensional texture layer and an easy-tear layer; the color layer is laminated with the adhesive layer, the LOGO layer is laminated with the color layer, the first UV three-dimensional texture layer is arranged on the outside of the LOGO layer, the easy-tear layer is arranged on the outside of the first UV three-dimensional texture layer, the easy-tear layer includes a base layer and a second UV three-dimensional texture layer arranged on the base layer, the second UV three-dimensional texture layer and the first UV three-dimensional texture layer are laminated with each other so that the three-dimensional texture is transferred to the first UV three-dimensional texture layer.

2. The double-solid rubbing injection molded part according to claim 1, characterized in that: The first UV three-dimensional texture layer is an IR thermosetting UV three-dimensional texture layer.

3. The double-solid rubbing injection molded part according to claim 1, characterized in that: The first UV three-dimensional texture layer is a transparent layer or a semi-transparent layer.

4. The double-solid rubbing injection molded part according to claim 1, characterized in that: The color layer comprises at least two layers; the first UV three-dimensional texture layer is formed by a screen printing process or a coating process.

5. The double-solid rubbing injection molded part according to claim 1, characterized in that: The thickness of the first UV three-dimensional texture layer is 2-25 microns.

6. The double-solid rubbing injection molded part according to claim 4, characterized in that: The thickness of the first UV three-dimensional texture layer is 3-8 microns.

7. The double-solid rubbing injection molded part according to claim 5, characterized in that: The thickness of the first UV three-dimensional texture layer is 15-25 microns.

8. The double-solid rubbing injection molded part according to claim 1, characterized in that: The base layer is a plate made of PC, PET, ABS, PVC, PP, PETG or PMMA material.

9. A product comprising the double-solid rubbing injection molded part according to any one of claims 1 to 7, characterized in that: The products include large and small household appliances, furniture, 3C products or car interiors.

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