Local optical texture injection molding product

Abstract

The local optical texture injection molding product comprises a base layer, a first injection molding layer and a second injection molding layer, the base layer is at least provided with a first surface and a second surface which are oppositely arranged in the thickness direction, the first surface is a display surface, the second surface is an attachment surface, the first injection molding layer is arranged on the first surface, and the second injection molding layer is arranged on the second surface. The second surface is sequentially provided with a first coloring layer, a local UV color printing layer or a local UV color printing layer, a local UV three-dimensional texture layer, a local coloring layer, a second coloring layer, an adhesive layer and a second injection molding layer; the first injection molding layer is a transparent layer, the local UV three-dimensional texture layer and the local coloring layer are overlapped with each other, and the extension area of the local coloring layer is not smaller than that of the local UV three-dimensional texture layer; the method has the advantages that the texture surface is not prone to being scratched and damaged, the three-dimensional texture is locally arranged, and the glossiness is high.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of product display surface, in particular to a local optical texture injection-molded product. BACKGROUND

[0002] The existing surface material with three-dimensional UV texture is mostly used in household appliances, and the UV three-dimensional texture does not have metallic luster, and is mostly realized by directly attaching the UV three-dimensional texture to the outside or inside of the base layer, and then attaching a colored layer; and generally, the UV three-dimensional texture is laid on the whole surface, that is, the whole surface is paved with the UV three-dimensional texture. Although the three-dimensional texture of this structure can meet certain use requirements, the three-dimensional texture laid on the whole surface requires more materials, resulting in an increase in cost, and the three-dimensional texture laid on the whole surface may cause the texture to deform during the combination process with the base layer due to the large area; and the three-dimensional texture laid on the whole surface does not have a sense of hierarchy in vision.

[0003] In addition, if the UV three-dimensional texture layer is external, it will be worn out, and the three-dimensional texture displayed by this combination method does not have enough luster, and although it can display a certain three-dimensional texture display effect under light, the luster and transparency are not very ideal. CONTENT OF THE UTILITY MODEL

[0004] In view of the above problems of the prior art, the present application provides a local optical texture injection-molded product, which is not easy to scratch and damage, and the three-dimensional texture is locally arranged and has high luster.

[0005] In order to solve the above technical problems, the technical scheme adopted by the present application is as follows: a local optical texture injection-molded product, which comprises a base layer, a first injection-molded layer and a second injection-molded layer, the base layer has at least a first surface and a second surface arranged oppositely along the thickness direction, the first surface is a display surface, the second surface is an attachment surface, the first surface is provided with the first injection-molded layer, the second surface is sequentially provided with a first colored layer, a local UV color printing layer or a local UV color printing layer, a local UV three-dimensional texture layer, a local colored layer, a second colored layer, an adhesive layer and a second injection-molded layer; the first injection-molded layer is a transparent layer, the local UV three-dimensional texture layer and the local colored layer overlap each other, and the extension area of the local colored layer is not less than the extension area of the local UV three-dimensional texture layer.

[0006] By means of the local texture setting, the local position of the obtained injection molding product realizes the three-dimensional effect of the gradient texture, in addition, the product is provided with two injection molding layers, and the first injection molding layer is provided as a transparent layer, so that the colored layer and the texture layer below can be fully displayed through the first injection molding layer, and more importantly, the setting of the first injection molding layer can also make the three-dimensional texture display three-dimensional gloss, so as to give the injection molding product more ideal three-dimensional display effect; in addition, the first injection molding layer provided outside the base layer can also fully protect the internal texture.

[0007] Further, the thickness of the base layer is 0.1-0.5mm, and when it is injection molded with the first injection molding layer and the second injection molding layer, it can be fully stretched and stretched, and better bonded with the injection molding layer.

[0008] Further, the thickness of the first injection molding layer and the second injection molding layer is 2-10mm; with this thickness, the three-dimensional texture can display three-dimensional gloss, and the strength and hardness of the injection molding product can also be increased.

[0009] Further, the thickness of the first injection molding layer is 3-8mm; with this structure, the texture of the lower layer can form a three-dimensional gloss effect.

[0010] Further, the first injection molding layer and the base layer are made of the same material; with this scheme, when the first injection molding layer is injection molded, they can be fully combined to avoid peeling or bubbling, and high-temperature injection bonding can be realized between them without the need for an adhesive layer, saving process and materials and reducing costs.

[0011] Further, the base layer is made of PC, PET, ABS, PMMA, PP or PETG material; with these materials, deformation is less likely to occur during injection molding, and better fusion between the injection molding layers can be achieved.

[0012] Further, the second colored layer is composed of at least two colored layers; with this structure, the three-dimensional texture can display more ideal color effect, and is less likely to be disturbed by the color of the injection molding layer below.

[0013] Further, the outer surface of the first injection molding layer is further provided with a layer of UV varnish; with this structure, the outer surface of the first injection molding layer is hardened to prevent scratching and wear.

[0014] Further, the local UV color printing layer or color printing layer and the local UV three-dimensional texture layer and the local coloring layer are arranged in the thickness direction and overlap each other; by using this scheme, the local UV color printing layer or color printing layer, the local UV three-dimensional texture layer and the local coloring layer can be superimposed to form a superimposed texture effect, which makes the local texture present more ideal luster and color, and improves the diversity and richness of the texture presentation.

[0015] Further, the application also provides an application of the local optical texture injection molding product, and the application field includes large and small household appliances, furniture, 3C products or automotive interiors, and the like. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The assembly structure diagram of the filling layer between the first injection molding layer and the second injection molding layer of the application.

[0017] Figure 2 The structure diagram of the filling layer after assembly between the first injection molding layer and the second injection molding layer of the application.

[0018] Figure 3 The structure diagram of the filling layer after hot pressing or high-pressure forming between the first injection molding layer and the second injection molding layer of the application.

[0019] Figure 4 The structure diagram of the filling layer as a whole after hot pressing or forming of the application.

[0020] Figure 5 The structure diagram of the filling layer combined with the second injection molding layer of the application.

[0021] Figure 6 The structure diagram of the filling layer combined with the second injection molding layer of the application.

[0022] Figure 7 The structure of the application Figure 6 combined with the structure of the first injection molding layer.

[0023] Figure 8 The structure of the application Figure 6 combined with the first injection molding layer.

[0024] Figure 9 The structure diagram of the injection molding product of the application provided with a UV varnish layer.

[0025] As shown in the drawings: S. filling layer, a. base layer, a1. first surface, a2. second surface, 1. first injection molding layer, 2. second injection molding layer, 3. first colored layer, 4. partial UV color printing layer, 5. partial UV color printing layer, 6. partial UV three-dimensional texture layer, 7. partial colored layer, 8. second colored layer, 9. adhesive layer, 10. second injection molding layer, 11. UV varnish layer. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments. Obviously, the described embodiments are only preferred embodiments, but not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application;

[0027] In addition, it should be noted that when a component is referred to as being "fixed" (and other similar terms containing "fixed") to another component, it can be directly on the other component or there can be another intermediate component fixed thereto. When a component is referred to as being "connected" (and other similar terms containing "connected") to another component, it can be directly connected to the other component or there can be another intermediate component. When a component is referred to as being "disposed" (and other similar terms containing "disposed") to another component, it can be directly disposed on the other component or there can be another intermediate component. 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 commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0028] As shown in the drawings: S. filling layer, a. base layer, a1. first surface, a2. second surface, 1. first injection molding layer, 2. second injection molding layer, 3. first colored layer, 4. partial UV color printing layer, 5. partial UV color printing layer, 6. partial UV three-dimensional texture layer, 7. partial colored layer, 8. second colored layer, 9. adhesive layer, 10. second injection molding layer, 11. UV varnish layer. Figures 1-9The image shows a localized optical texture injection molded product according to this application. The product includes a base layer a, a first injection layer 1, and a second injection layer 2. The base layer a has at least a first surface a1 and a second surface a2 disposed opposite to each other along the thickness direction. The first surface a1 is the display surface (i.e., the side facing the user for observing the displayed texture), and the second surface a2 is the adhesion surface (used for the subsequent layering and adhesion of various structural layers). The first injection layer 1 is disposed on the first surface a1, and the second surface a2 is sequentially disposed with a first coloring layer 3, a localized UV color printing layer 4, or a localized UV color printing layer 5. The system comprises a partial UV texture layer 6, a partial coloring layer 7, a second coloring layer 8, an adhesive layer 9, and a second injection molding layer 10. The first injection molding layer 1 is a transparent layer. The partial UV texture layer 6 and the partial coloring layer 7 overlap each other (they are stacked rather than staggered along the thickness direction, so that the partial coloring layer imparts a base color to the partial UV texture layer). The extension area of ​​the partial coloring layer 7 is not less than the extension area of ​​the partial UV texture layer 6 (i.e., the extension area along the lateral extension surface, ensuring that the lower partial coloring layer fully covers the three-dimensional texture of the upper partial UV texture layer).

[0029] Using the above structure, by setting local textures, the obtained injection molded product achieves a three-dimensional effect of gradient texture in local areas. In addition, the product has two injection molding layers, and the first injection molding layer is set as a transparent layer, which allows the underlying coloring layer and texture layer to be fully displayed through the first injection molding layer. More importantly, the setting of the first injection molding layer can also make the three-dimensional texture show a three-dimensional gloss, giving the injection molded product a more ideal three-dimensional display effect. Furthermore, setting the first injection molding layer on the outside of the base layer can also fully protect the internal texture.

[0030] As an example, the thickness of the base layer a described in this application is 0.1-0.5 mm. With this thickness, when it is injection molded with the first injection layer and the second injection layer, it can be fully extended and stretched, and better bonded with the injection layer; more preferably, the thickness can be in the range of 0.1-0.3 mm.

[0031] As an example, the thickness of the first injection layer 1 and the second injection layer 2 described in this application is 2-10mm; using this thickness can not only ensure that the three-dimensional texture displays a three-dimensional gloss, but also increase the strength and hardness of the injection molded product.

[0032] As an example, the thickness of the first injection molding layer 1 described in this application is 3-8mm; that is, the thickness of the first injection molding layer is more than 2mm. By adopting this structure, the texture of the lower layer can form a three-dimensional gloss effect.

[0033] As an example, the first injection layer 1 described in the present application is the same material as the base layer a; that is, the two materials are consistent, and when the first injection layer is injected, the two materials can be fully combined to avoid peeling or bubbling, and high-temperature injection bonding can be achieved between the two materials without the need for an adhesive layer, saving process and material and reducing costs.

[0034] As an example, the base layer described in the present application is a base layer made of PC, PET, ABS, PMMA, PP or PETG material, i.e. a sheet structure made of the above materials; using these materials, deformation is less likely to occur during injection molding, and better fusion between the injection layer can be achieved.

[0035] As shown in the accompanying Figures 1-3 The second colored layer 8 described in the present application is composed of at least two colored layers or three or more colored layers stacked in the thickness direction; using this structure, the three-dimensional texture display can achieve more ideal color effects, and is less likely to be disturbed by the color of the injection layer below.

[0036] As shown in the accompanying Figure 9 The outer surface of the first injection layer 1 described in the present application is further provided with a layer of UV varnish 11, and the UV varnish used is a transparent paint or UV varnish, which is sprayed or rolled on the surface of the substrate, and then irradiated by a UV lamp to convert it from a liquid to a solid state, thereby achieving surface hardening, scratch and wear resistance, and a bright and beautiful appearance; using this structure, the outer surface of the first injection layer is hardened to prevent scratching and wear.

[0037] As shown in the accompanying Figure 1 The local UV color printing layer 4 or the local UV color printing layer 5 described in the present application is arranged to overlap the local UV three-dimensional texture layer 6 and the local colored layer 7 in the thickness direction; using this scheme, the local UV color printing layer or color printing layer, the local UV three-dimensional texture layer and the local colored layer can be overlapped to form a superimposed texture effect, which makes the local texture present more ideal gloss and color, and improves the diversity and richness of the texture presentation.

[0038] The present application also provides an application of the above-mentioned locally optical texture injection molding product, and the application field includes small and large household appliances, furniture, 3C products or automotive interiors, etc. such as refrigerators, air conditioners, water heaters, steam ovens, water dispensers, range hoods, mobile phones, computers or automotive interiors, etc.

[0039] The coloring layer described in the present application is attached to the surface of the corresponding material layer by printing, spraying, rolling or screen printing, etc. using the ink of the required color. The ink of the first coloring layer can be selected from ordinary color ink, or ink with metallic luster, or color ink material with high tensile property. The second coloring layer of the present application can also use ordinary color ink. The second coloring layer and the first coloring layer can be attached to the surface of the corresponding material to give the overall injection molding product a base color.

[0040] The first coloring layer, the local UV color printing layer, the local UV color printing layer, the local UV texture layer, the local coloring layer and the base layer of the present application can be made of transparent or semi-transparent material, so that the superimposed texture and color can be displayed through the transparent first injection molding layer, and the obtained texture has different luster and color and three-dimensional texture effect from the body. The three-dimensional texture does not need to be laid in full version. This way is more conducive to forming contrast effect or forming local functional key texture, providing more three-dimensional and high-gloss rapid selection and visual effect for the operator.

[0041] The local coloring layer of the present application can be attached with high-brightness mirror surface oil material, so that the obtained local texture has more obvious three-dimensional luster.

[0042] The local related layered structure of the present application processes local printing, printing or texture differently, and other parts are covered by subsequent coloring layers (such as attached Figure 3 of course, the layered structure can also be used for area adaptation of the base layer. The corresponding technical effect is formed at the local position, and the other positions are transparent structure, so that the layers are fully covered with other layers, and the color or shape structure of the subsequent layer is penetrated and superimposed.

[0043] The local UV three-dimensional texture layer of the present application can be prepared by 3D multi-channel three-dimensional texture mold process, that is, attaching UV glue in the mold, then covering the attached layer, performing texture imprinting on the UV coating (UV glue) in the mold, then using UV light source to perform photocuring on the imprinted UV coating, removing the master after curing, obtaining the attached layer with the master pattern, and removing the excess UV glue on the attached layer. For specific content, please refer 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”. The UV layer of the present application can use the similar process. The thickness of the local UV three-dimensional texture layer, the local UV color printing layer or the printing layer, and the coloring layer of the present application can be in micrometer level or nanometer level or millimeter level, which can be adjusted according to the needs of specific products, such as in the range of 10-500 micrometers thick.

[0044] The first injection layer and the second injection layer of the present application are stacked in the assembly mode shown in Figure 1 The complete filling layer is formed. For details, see Figures 4-8 In order to simplify the structure, the assembled filling layer can be marked as S. The filling layer S is molded by hot pressing or high pressure forming process before being combined with the second injection layer. Then, the excess corners are cut off to obtain a structure suitable for the injection mold cavity to be filled. Then, the filling layer S obtained after hot pressing or high pressure forming and cutting is placed in the mold cavity. Then, the material of the second injection layer is injected. The second injection layer is combined on the adhesion surface of the filling layer S. Then, it is taken out and placed in the subsequent injection mold. The space between the surface of the filling layer S relative to the second injection layer and the injection mold cavity is filled with the first injection layer material. The complete Figure 8 The local three-dimensional textured injection molded part structure is shown in the figure. In order to further enhance the surface hardness of the injection molded product, a layer of UV varnish is sprayed on the outer surface of the first injection layer of the injection molded product.

[0045] The local three-dimensional textured injection molded product obtained by the present application has a black body that is the color of the injection molded part body and a local starry night pattern that is the local texture structure superimposed. The picture of the product shows that the injection molded part obtained by the present application has an ideal gloss and a local texture recognition degree, which is particularly suitable for high-end car interior panels to improve the visual effect of the in-car atmosphere display.

Claims

1. A localized optical texture injection molded product, characterized in that: The product comprises a base layer, a first injection molding layer, and a second injection molding layer. The base layer has at least a first surface and a second surface extending relative to each other along the thickness direction. The first surface is a display surface, and the second surface is an adhesion surface. The first injection molding layer is disposed on the first surface, and the second surface is sequentially disposed with a first coloring layer, a partial UV color printing layer or a partial UV color printing layer, a partial UV three-dimensional texture layer, a partial coloring layer, a second coloring layer, an adhesive layer, and a second injection molding layer. The first injection molding layer is a transparent layer. The partial UV three-dimensional texture layer and the partial coloring layer overlap each other, and the extension area of ​​the partial coloring layer is not less than the extension area of ​​the partial UV three-dimensional texture layer.

2. The injection-molded product with localized optical texture according to claim 1, characterized in that: The thickness of the base layer is 0.1-0.5 mm.

3. The injection-molded product with localized optical texture according to claim 1, characterized in that: The thickness of the first and second injection molding layers is 2-10 mm.

4. The injection-molded product with localized optical texture according to claim 3, characterized in that: The thickness of the first injection molding layer is 3-8 mm.

5. The injection-molded product with localized optical texture according to claim 1, characterized in that: The first injection-molded layer is made of the same material as the base layer.

6. The injection-molded product with localized optical texture according to claim 1, characterized in that: The base layer is made of PC, PET, ABS, PMMA, PP or PETG materials.

7. The injection-molded product with localized optical texture according to claim 1, characterized in that: The second coloring layer is composed of at least two coloring layers.

8. The injection-molded product with localized optical texture according to claim 1, characterized in that: The outer surface of the first injection molding layer is also provided with a UV varnish layer.

9. The injection-molded product with localized optical texture according to claim 1, characterized in that: The localized UV color printing layer or color printing layer, the localized UV three-dimensional texture layer, and the localized coloring layer are arranged to overlap each other along the thickness direction.

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