WO2022095561A1 - 皮质膜片及其制备方法、壳体组件和电子设备 - Google Patents

皮质膜片及其制备方法、壳体组件和电子设备 Download PDF

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Publication number
WO2022095561A1
WO2022095561A1 PCT/CN2021/114300 CN2021114300W WO2022095561A1 WO 2022095561 A1 WO2022095561 A1 WO 2022095561A1 CN 2021114300 W CN2021114300 W CN 2021114300W WO 2022095561 A1 WO2022095561 A1 WO 2022095561A1
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layer
texture
color
structures
cortical
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PCT/CN2021/114300
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English (en)
French (fr)
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赵岩峰
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Oppo广东移动通信有限公司
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Publication of WO2022095561A1 publication Critical patent/WO2022095561A1/zh

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Definitions

  • the application belongs to the technical field of electronic products, and specifically relates to a cortical diaphragm and a preparation method thereof, a housing assembly and an electronic device.
  • the shell made of genuine leather greatly improves the appearance and texture. Due to the high price of genuine leather, artificial leather is often used, which not only maintains the texture of genuine leather, but also has a low price. Artificial leather can only show a single solid color, and the appearance variability is small, so the homogenization of the obtained shell is serious.
  • the present application provides a cortical diaphragm, a preparation method thereof, a casing assembly and an electronic device.
  • the cortical diaphragm not only has the texture of leather, but also presents the visual effect of sparkling sand, and has rich appearance effects, thereby enhancing the casing.
  • the appearance of components and electronic equipment can avoid homogenization and improve product competitiveness.
  • the present application provides a cortical membrane, comprising a foam layer and a color texture layer, the color texture layer has a plurality of texture structures on a side surface away from the foam layer, and the texture structures are sharp shaped convex and/or concave structures.
  • the present application provides a method for preparing a cortical patch, comprising:
  • a color texture layer is formed on the foam layer to obtain a cortical film, wherein the surface of the color texture layer away from the foam layer has a plurality of texture structures, and the texture structures are pointed protrusions and/or recessed structure.
  • the present application provides a casing assembly, comprising a casing and a cortical diaphragm disposed on the casing, the cortical diaphragm including a foam layer and a color texture layer, the color texture layer being far away from the One surface of the foamed layer has a plurality of texture structures, and the texture structures are pointed convex and/or concave structures.
  • the present application provides an electronic device, comprising a housing assembly and a main board, the housing assembly comprising a housing and a cortex diaphragm provided on the housing, the cortex diaphragm comprising a foam layer and a color In the texture layer, a surface of the color texture layer away from the foam layer has a plurality of texture structures, and the texture structures are pointed convex and/or concave structures.
  • FIG. 1 is a schematic structural diagram of a cortical membrane provided by an embodiment of the present application.
  • FIG. 2 is a schematic structural diagram of a color texture layer provided by an embodiment of the present application.
  • FIG. 3 is a schematic structural diagram of a color texture layer provided by another embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of a cortical membrane provided by another embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a release paper provided by an embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of a release paper provided by another embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of a cortical membrane provided by another embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a cortical membrane provided by another embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of a cortical membrane provided by another embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of a cortical membrane provided by another embodiment of the present application.
  • FIG. 11 is a flowchart of a method for preparing a cortical patch provided by an embodiment of the present application.
  • FIG. 12 is a flowchart of a method for preparing a cortical patch provided by another embodiment of the present application.
  • FIG. 13 is a schematic structural diagram of a housing assembly provided by an embodiment of the present application.
  • FIG. 14 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
  • An embodiment of the present application provides a cortical diaphragm, including a foam layer and a color texture layer, the color texture layer has a plurality of texture structures on a surface of one side away from the foam layer, and the texture structures are pointed convex Raised and/or recessed structures.
  • the texture structure has at least one reflective surface.
  • the texture structure is a micro-scale structure.
  • the height of the texture structure is 70%-90% of the thickness of the color texture layer.
  • the height of the texture structure is 10 ⁇ m-50 ⁇ m.
  • the distance between adjacent texture structures is 2 ⁇ m-30 ⁇ m, and the distribution density of the texture structures is 20 pieces/cm 2 -1000 pieces/cm 2 .
  • the texture structure includes a plurality of reflective surfaces, the reflective surfaces are side reflective surfaces, a plurality of the side reflective surfaces intersect at a center point or a center line, and adjacent to the side reflective surfaces intersect; or
  • the texture structure includes a plurality of reflective surfaces, the reflective surfaces are a plurality of side reflective surfaces and a central reflective surface, each of the side reflective surfaces intersects with the central reflective surface, adjacent to the side reflective surfaces intersect.
  • the texture structure includes at least one of a pyramid structure and a pyramid-like structure.
  • the color texture layer includes a texture layer and a color layer disposed between the texture layer and the foam layer, and the texture structure is disposed on the surface of the texture layer.
  • the material of the color texture layer includes at least one of polyurethane and polyvinyl chloride.
  • it also includes a base fabric layer, and the base fabric layer is arranged on the surface of the foam layer on one side away from the color texture layer.
  • the coating layer is arranged on the surface of the color texture layer on the side away from the foam layer.
  • a protective layer is also included, and the protective layer is arranged on the surface of the side of the color texture layer away from the foam layer.
  • the thickness of the protective layer is less than 10% of the height of the texture structure.
  • the thickness of the protective layer is 3 ⁇ m-10 ⁇ m.
  • An embodiment of the present application further provides a method for preparing a cortical membrane, comprising: forming a color texture layer on a foam layer to obtain a cortical membrane, wherein the color texture layer is away from the surface of one side of the foam layer There are multiple texture structures, and the texture structures are pointed convex and/or concave structures.
  • the molding color texture layer includes: providing a release paper, the surface of the release paper has a preset texture, and the preset texture corresponds to the texture structure; The textured surface is coated with colored resin, which is transferred to the foamed layer after curing to obtain the colored textured layer.
  • forming the color texture layer includes: forming a color layer on the foam layer; providing a release paper, the surface of the release paper has a preset texture, and the preset texture corresponds to the texture structure ; Coating transparent resin on the surface of the release paper with the preset texture, and obtaining the texture layer after curing; transferring the texture layer to the color layer to obtain the color texture layer.
  • An embodiment of the present application further provides a casing assembly, including a casing and a cortex diaphragm disposed on the casing, the cortex diaphragm including a foam layer and a color texture layer, and the color texture layer is far away from the hair
  • a casing assembly including a casing and a cortex diaphragm disposed on the casing, the cortex diaphragm including a foam layer and a color texture layer, and the color texture layer is far away from the hair
  • One surface of the bubble layer has a plurality of texture structures, and the texture structures are pointed protrusions and/or concave structures.
  • An embodiment of the present application also provides an electronic device, including a housing assembly and a main board, the housing assembly includes a housing and a cortex diaphragm provided on the case, the cortex diaphragm includes a foam layer and a color texture layer, the color texture layer has a plurality of texture structures on the side surface away from the foam layer, and the texture structures are pointed convex and/or concave structures.
  • FIG. 1 is a schematic structural diagram of a cortical membrane provided in an embodiment of the application.
  • the cortical membrane 10 includes a foam layer 11 and a color texture layer 12 , and the surface of the color texture layer 12 away from the foam layer 11 has many a texture structure, the texture structure is a pointed convex and/or concave structure.
  • the cortical layer is made of leather, the preparation cost is increased, and it is also unfavorable for animal protection.
  • the cortex film 10 has a leather texture, and the light is reflected, scattered and refracted on the texture structure, thereby producing the effect of sparkling sand, so that the cortex film 10 has a leather texture.
  • the sheet 10 has a sparkling effect, which enhances the agility and beauty of the cortical diaphragm 10, enriches the appearance effect of the cortical diaphragm 10, avoids homogenization, and is beneficial to its application.
  • the foam layer 11 is soft and has good resilience, giving the cortex diaphragm 10 a soft and elastic touch, so that the cortex diaphragm 10 has a cortical texture.
  • the material of the foam layer 11 includes at least one of polyurethane, polyvinyl chloride, thermoplastic elastomer and ethylene-vinyl acetate copolymer.
  • the preparation method of the foamed layer 11 includes applying foaming slurry, and then forming after foaming.
  • the foaming slurry includes a main material and a foaming agent, and the main material includes at least one of polyurethane, polyvinyl chloride, thermoplastic elastomer and ethylene-vinyl acetate copolymer. Further, the foamed slurry further includes at least one of a foaming aid, a leveling agent, a defoaming agent and a stabilizer, so that the performance of the foamed layer 11 can be improved.
  • the foaming slurry can include, but is not limited to, 100 parts by weight of the main material, 2 parts by weight to 15 parts by weight of a foaming agent, and 0.5 parts by weight to 3 parts by weight of a stabilizer, which is conducive to the formation of a suitable number of holes , to obtain a foam layer 11 with a soft and elastic texture.
  • the material of the foam layer 11 includes polyurethane.
  • the foaming includes drying at 100° C.-200° C. for 30s-90s, thereby facilitating the formation and distribution of pores and improving the texture of the foamed layer 11 .
  • the thickness of the foamed layer 11 can be selected as required.
  • the thickness of the foam layer 11 is 50 ⁇ m-600 ⁇ m, which can not only give the cortex diaphragm 10 a soft and elastic texture, but also does not increase the thickness of the cortex diaphragm 10 too much. Further, the thickness of the foamed layer 11 is 100 ⁇ m-300 ⁇ m. Specifically, the thickness of the foamed layer 11 may be, but not limited to, 50 ⁇ m, 80 ⁇ m, 100 ⁇ m, 150 ⁇ m, 200 ⁇ m, 350 ⁇ m or 500 ⁇ m.
  • the arrangement of the color texture layer 12 makes the cortex diaphragm 10 have a certain color, and the surface of the color texture layer 12 has a plurality of texture structures, and the texture structures are pointed protrusions and/or concave structures, so that during rotation During the process of the cortex film 10, the light reflects, scatters and refracts on the texture structure, so that the cortex film 10 has the appearance effect of sparkling sand.
  • the color texture The texture distribution of the layer 12 is highly controllable, so that the distribution of the flash effect is highly controllable, the distribution uniformity is good, and the product yield is high, which is favorable for large-scale application.
  • the texture structure on the surface of the color texture layer 12 is at least one of a pointed convex structure and a pointed concave structure, and the texture structure has at least one reflective surface. It can be understood that when the light is irradiated on the surface of the color texture layer 12, the light is specularly reflected on the reflective surface of the texture structure. After the cortical diaphragm 10 is rotated, the direction of the reflected light changes, and the reflected light enters the human eye or does not enter. Conversion between human eyes, so as to achieve a twinkling effect, to achieve a similar appearance of glitter sand.
  • the texture structure is a micro-scale structure.
  • the height of the texture structure is 70%-90% of the thickness of the color texture layer. Therefore, during the use of the cortical diaphragm 10 , the textured structure will not be easily worn, the surface resistance is enhanced, the long-term flash sand effect can be maintained, and the service life of the cortical diaphragm 10 can be improved. Further, the height of the texture structure is 75%-88% of the thickness of the color texture layer. Further, the height of the texture structure is 77%-85% of the thickness of the color texture layer.
  • the height of the texture structure is 72%, 76%, 80%, 83%, 84%, 87% or 89% of the thickness of the color texture layer.
  • the height of the textured structure is 10 ⁇ m-50 ⁇ m. Thereby, a three-dimensional appearance effect can be better achieved.
  • the height of the textured structure is 15 ⁇ m-45 ⁇ m.
  • the height of the textured structure is 20 ⁇ m-40 ⁇ m.
  • the height of the texture structure may be, but not limited to, 15 ⁇ m, 25 ⁇ m, 30 ⁇ m, 35 ⁇ m, 42 ⁇ m, 46 ⁇ m or 50 ⁇ m.
  • the height of the texture structure at this time refers to the depth of the pointed concave structure.
  • the lateral dimension of the textured structure is 50 ⁇ m-400 ⁇ m. Further, the lateral dimension of the textured structure is 60 ⁇ m-300 ⁇ m. Specifically, the lateral size of the textured structure may be, but not limited to, 55 ⁇ m, 95 ⁇ m, 130 ⁇ m, 200 ⁇ m, 290 ⁇ m, 320 ⁇ m or 360 ⁇ m. The lateral size is the maximum value of the distance between any two points on the contour line of the orthographic projection of the texture structure on the color texture layer 12 .
  • a plurality of texture structures may be arranged continuously, may also be arranged at intervals, and may also be partly arranged continuously and partly arranged at intervals.
  • the texture structure set continuously can present continuous flash points, and the flash effect is concentrated; the texture structure set at intervals can make the flash points scattered, and the flash effect of each texture structure at different angles can be better presented.
  • a plurality of texture structures are arranged at intervals, and the spacing between adjacent texture structures is 2 ⁇ m-30 ⁇ m. This facilitates the presentation of the flash effect. It can be understood that the distance between adjacent texture structures is the minimum distance between the contour lines of the orthographic projections of adjacent texture structures on the color texture layer 12 .
  • the spacing between adjacent texture structures is 5 ⁇ m-28 ⁇ m. Further, the spacing between adjacent texture structures is 10 ⁇ m-25 ⁇ m. Specifically, the spacing between adjacent texture structures may be, but not limited to, 6 ⁇ m, 12 ⁇ m, 15 ⁇ m, 18 ⁇ m, 20 ⁇ m or 26 ⁇ m.
  • a plurality of texture structures are regularly arranged on the surface of the color texture layer 12 to present a uniformly dispersed glitter effect. In another embodiment, a plurality of texture structures are irregularly arranged in the color texture layer 12 .
  • the distribution density of the texture structures is 20 pieces/cm 2 -1000 pieces/cm 2 , so that the glittering sand effect is more likely to be presented, and the non-glittering effect caused by large-area reflection can be avoided. Further, the distribution density of the texture structure is 50 pieces/cm 2 -950 pieces/cm 2 , showing a denser sparkling sand effect. Further, the distribution density of the texture structure is 100 pieces/cm 2 -800 pieces/cm 2 .
  • the distribution density of texture structures may be, but not limited to, 75/cm 2 , 100/cm 2 , 250/cm 2 , 380/cm 2 , 440/cm 2 , 500/cm 2 , 620 Pieces/cm 2 or 850 pieces/cm 2 .
  • the texture structure can be of regular shape or irregular shape. In the embodiments of the present application, the textured structure may have multiple side surfaces with included angles between different side surfaces, or may have curved side surfaces. In an embodiment of the present application, the texture structure includes a plurality of reflective surfaces, the reflective surfaces are side reflective surfaces, the plurality of side reflective surfaces intersect at a center point or a center line, and adjacent side reflective surfaces intersect. In another embodiment of the present application, the texture structure includes a plurality of reflective surfaces, the reflective surfaces are a plurality of side reflective surfaces and a central reflective surface, each side reflective surface intersects with the central reflective surface, and adjacent side reflective surfaces are reflective face to meet.
  • the reflective surface of the textured structure is a smooth surface, so that specular reflection can be realized, and the light change effect is obvious, which is beneficial to realize flashing.
  • the textured structure includes at least one of a pyramid structure and a pyramid-like structure. At this time, the light is reflected, scattered and refracted on the side and tip of the textured structure. When the cortical diaphragm 10 is rotated, the incident angle changes, so that the reflected light, scattered light and refracted light are changed, thereby realizing the effect of sparkling sand.
  • the texture structure may be, but not limited to, a triangular pyramid, a quadrangular pyramid, a three-type pyramid, a four-type pyramid, and the like.
  • both the pyramid structure and the pyramid-like structure have sharp parts, and the sides of the pyramid structure and the pyramid-like structure are facets, and each facet can realize specular reflection and form a flash point; It can also be linear; different from the pyramid structure, the apex of the pyramid-like structure can be a plane or a curved surface, for example, the pyramid-like structure can be a pyramid.
  • the texture structure when the texture structure is a pointed convex structure, can be, but is not limited to, a triangular pyramid, a quadrangular pyramid, a three-type pyramid, a four-type pyramid, etc.; in another embodiment, when the texture structure is In the case of the pointed concave structure, the texture structure may be, but not limited to, an inverted triangular pyramid, an inverted quadrangular pyramid, an inverted three-type pyramid, an inverted four-type pyramid, and the like.
  • the texture structure when the texture structure is a regular triangular pyramid, the surface of the color texture layer 12 is in a pyramid shape or an inverted pyramid shape, and the three facets of the triangular pyramid are side reflective surfaces, which perform specular reflection on the light, and at the angle of the incident light When changing, a sparkling effect is produced; when the texture structure is a regular hexagonal table, the hexagonal table is similar to the crown of a diamond, with multiple lateral reflective surfaces and a central reflective surface, which produces a sparkling effect when the angle of incident light changes.
  • the size and shape of each texture structure may be the same or different.
  • at least one parameter among the heights, lateral dimensions and shapes of the plurality of texture structures is different, so that the cortical diaphragm 10 can exhibit obvious flashing effects at different angles, thereby improving the appearance expression.
  • FIG. 2 is a schematic structural diagram of a color texture layer according to an embodiment of the present application, wherein, when the first reference plane 123 is used as a reference, the texture structure of the surface of the color texture layer 12 is a pointed convex structure, and When the second reference plane 124 is used as a reference, the texture structure of the surface of the color texture layer 12 is a pointed concave structure.
  • FIG. 2 is a cross-sectional view, so the reference plane is in the shape of a line in FIG. 2 . Please refer to FIG.
  • FIG. 3 which is a schematic structural diagram of a color texture layer according to another embodiment of the present application, wherein, when the third reference plane 125 is used as a reference, the texture structure of the surface of the color texture layer 12 is a pointed convex structure and A pointed concave structure.
  • the material of the color texture layer 12 includes at least one of polyurethane and polyvinyl chloride. Therefore, the color texture layer 12 can also have a certain elasticity, and the tactile feeling of the leather can be achieved after being stacked with the foam layer 11 . Further, the material of the color texture layer 12 also includes pigment; by controlling the color of the added pigment, different color appearance effects can be achieved. Further, at least one of polyurethane and polyvinyl chloride in the color texture layer 12 accounts for 100 parts by weight, and the pigment accounts for 1 part by weight to 15 parts by weight.
  • the material of the color texture layer 12 is the same as the material of the foam layer 11 , so that the two layers can be better combined during the lamination process, thereby improving the structural stability of the cortical membrane 10 .
  • the material of the color texture layer 12 and the material of the foam layer 11 are both polyurethane.
  • the polyurethane includes at least one of polyester type, polyether type and polycarbonate type.
  • the material of the color texture layer 12 and the material of the foam layer 11 are both polyvinyl chloride.
  • the thickness of the color texture layer 12 can be selected as required. In the embodiment of the present application, the thickness of the color texture layer 12 is 30 ⁇ m-100 ⁇ m.
  • the thickness of the color texture layer 12 is 30 ⁇ m-60 ⁇ m. Specifically, the thickness of the color texture layer 12 may be, but not limited to, 35 ⁇ m, 40 ⁇ m, 45 ⁇ m, 50 ⁇ m, 60 ⁇ m, 70 ⁇ m, 80 ⁇ m or 95 ⁇ m.
  • the color texture layer 12 has a single-layer structure, that is, the color texture layer 12 has an integrated structure.
  • the color textured layer 12 can be formed by coating a colored resin on the release paper after curing, wherein the surface of the release paper has a preset texture corresponding to the texture structure.
  • the colored resin is at least one of polyurethane and polyvinyl chloride and a pigment. That is to say, the release paper is used as a carrier and a mold, and colored resin is used to transfer the texture on the surface of the release paper to form the color texture layer 12 .
  • curing includes treating at 100°C-150°C for 1min-10min.
  • colored resin is coated on the release paper, and after curing, the colored textured layer 12 is formed; Specifically, it can be connected by, but not limited to, an adhesive.
  • colored resin is coated on the release paper, and after curing, the colored textured layer 12 is formed; Specifically, it can be connected by, but not limited to, an adhesive.
  • a connection layer is further included between the foam layer 11 and the color texture layer 12 .
  • the material of the connection layer is the same as the material of at least one of the foam layer 11 and the color texture layer 12, so as to improve the bonding force.
  • at least one of polyurethane and polyvinyl chloride in the connecting layer accounts for 100 parts by weight, and the binder accounts for 5 parts by weight to 20 parts by weight.
  • FIG. 4 is a schematic structural diagram of a cortical membrane provided in another embodiment of the present application, wherein the color texture layer 12 includes a texture layer 122 and is provided on the texture layer 122 and the foam layer.
  • Color layer 121 between 11.
  • the color layer 121 can be formed on the foamed layer 11; the transparent resin is coated on the release paper, and the textured layer 122 is formed after curing, wherein the surface of the release paper has a predetermined texture corresponding to the texture structure. Set the texture; then transfer the texture layer 122 to the color layer 121 to form the color texture layer 12 .
  • the colored resin is at least one of polyurethane and polyvinyl chloride and a pigment
  • the transparent resin is at least one of polyurethane and polyvinyl chloride.
  • curing includes treating at 100°C-150°C for 1min-10min.
  • the optical transmittance of the texture layer 122 is greater than 85% to avoid affecting the presentation of the effect of the color layer 121 .
  • the color layer 121 may be formed by coating with a colored resin and cured, and then stacked with the foam layer 11 . Specifically, it can be connected by, but not limited to, an adhesive.
  • a transparent resin is coated on the release paper, and after curing, the texture layer 122 is formed; after the texture layer 122 is peeled off from the release paper, the color layer 121 is laminated together.
  • a transparent resin is coated on the release paper, and after curing, the textured layer 122 is formed; after the color layer 121 is disposed on the surface of the textured layer 122, the release paper is peeled off.
  • the color texture layer 12 can have certain softness and elasticity by controlling the ratio and content of each component in the colored resin and the transparent resin, so as to enhance the leather feel of the leather membrane 10 .
  • the color texture layer 12 is a solid color layer, so that the color texture layer 12 can block the foam layer 11, avoid the appearance of the foam layer 11, and is more conducive to the realization of leather texture.
  • the optical transmittance of the color texture layer 12 is less than 30%. Further, the optical transmittance of the color texture layer 12 is less than 10%.
  • the texture structure can be formed on the surface of the mold, and the texture structure on the surface of the mold can be transferred to the surface of the release paper through transfer, so that the surface of the release paper forms a preset corresponding to the texture structure texture.
  • a texture structure is formed on the surface of the steel film by CNC processing, and the texture structure on the surface of the steel film is rubbed onto the surface of the release paper by transfer printing, and a preset corresponding to the texture structure is formed on the surface of the release paper. texture.
  • an inverted triangular pyramid-shaped texture structure is formed on the mold, that is, the texture structure is a pointed concave structure at this time; the texture structure is rubbed onto the surface of the release paper to form three Pyramid structure, the edge length is 50 ⁇ m-300 ⁇ m, the height is 10 ⁇ m-50 ⁇ m, and the distance between the multiple triangular pyramid structures is 2 ⁇ m-30 ⁇ m; then the colored resin is coated on the release paper, and cured to form the color texture layer 12,
  • the color texture layer 12 has a concave structure in the shape of an inverted triangular pyramid, and the facets can form a light-reflecting layer to reflect light and form a sparkling effect when the cortical diaphragm 10 is rotated. Please refer to FIG.
  • FIG. 5 which is a schematic structural diagram of a release liner provided by an embodiment of the application, wherein the release liner has a plurality of triangular pyramid structures, the distance between point A and point B is 189 ⁇ m, and the distance between point B and point C is 189 ⁇ m. The distance between them is 189 ⁇ m. Please refer to FIG.
  • FIG. 6 which is a schematic structural diagram of a release paper provided by another embodiment of the application, wherein the release paper has a plurality of triangular pyramid structures, and the tip of the triangular pyramid is used as the reference point Z, and points D and E in the figure
  • the distances between points , F, G, H, I and Z are 61.21 ⁇ m, 64.21 ⁇ m, 59.59 ⁇ m, 61.21 ⁇ m, 13.87 ⁇ m, 9.37 ⁇ m and 5.91 ⁇ m, respectively.
  • the cortical membrane 10 further includes a skin pattern, and the skin pattern is provided on the surface of the color texture layer 12 .
  • the skin pattern may be, but not limited to, cowhide pattern, lychee pattern, snakeskin pattern, and the like.
  • the skin texture and the texture structure are arranged on the same side surface of the color texture layer 12 . Further, the skin texture and the texture structure are arranged adjacent to each other.
  • the shape and distribution of the preset texture on the release paper can be controlled, so that the skin texture on the color texture layer 12 can be set in a pattern, or the texture structure can be set in a pattern, such as text, graphics, etc., so that the A patterned effect with skin texture or a patterned effect with sparkling sand is realized on the cortical diaphragm 10 to enrich the appearance of the cortical diaphragm 10 .
  • FIG. 7 is a schematic structural diagram of a cortical membrane provided in another embodiment of the application, which is substantially the same as FIG. 1 , except that it further includes a base fabric layer 13 , and the base fabric layer 13 is disposed at a distance from the foam layer 11 .
  • the base fabric layer 13 is used as a substrate for supporting the foam layer 11 and the color texture layer 12 , and at the same time, the softness of the leather membrane 10 is increased.
  • the base fabric layer 13 includes at least one of a woven fabric and a non-woven fabric.
  • the base cloth layer 13 includes nylon cloth, polyester cloth and the like.
  • the thickness of the base fabric layer 13 is 50 ⁇ m-500 ⁇ m. It can be used to support the foam layer 11 and the color texture layer 12 without increasing the weight of the leather membrane 10 too much. Further, the thickness of the base fabric layer 13 is 80 ⁇ m-400 ⁇ m. In a specific embodiment, the foamed slurry may be coated on the surface of the base fabric layer 13, and the foamed layer 11 may be formed after foaming.
  • FIG. 8 is a schematic structural diagram of a cortical diaphragm provided by another embodiment of the application, which is substantially the same as FIG. 1 , except that it further includes a coating layer 14 , and the coating layer 14 is disposed on the color texture layer 12 away from the foaming One side surface of layer 11 .
  • the coating layer 14 is an optical medium material layer that transmits light through its interface, which can change the reflection, refraction, etc. of the light passing through the coating layer 14, so that the cortical diaphragm 10 exhibits a certain gloss change, such as in the The visual effects of different colors and glosses are presented at different angles.
  • the optical transmittance of the coating layer 14 is greater than 85%, 88%, 90% or 92%, so as to facilitate the presentation of leather texture and flashing effect. It can be understood that by changing the material, thickness and number of layers of the coating layer 14 to change the reflectance, refractive index and light transmittance, different visual effects can be achieved to meet the needs of different scenarios.
  • the coating layer 14 is formed by alternately stacking at least two optical films with different refractive indices. Further, the coating layer 14 is formed by periodically alternately stacking at least two thin films with different refractive indices.
  • the iridescent luster can be formed by controlling the thickness of the stacked optical films to increase or decrease.
  • the material of the coating layer 14 may be inorganic or organic.
  • the organic material includes at least one of polyethers, polyesters, fluoropolymers and silicon-containing polymers.
  • the coating layer 14 has good flexibility, good bendability, and strong bonding force with other structures.
  • the inorganic substance includes at least one of TiO 2 , Ti 3 O 5 , Nb 2 O 3 , Nb 2 O 5 , SiO 2 , Ta 2 O 5 , HfO 2 and ZrO 2 .
  • the coating layer 14 includes a TiO 2 layer, a Ti 3 O 5 layer, a Nb 2 O 3 layer, a Nb 2 O 5 layer, a SiO 2 layer, a Ta 2 O 5 layer, a HfO 2 layer and a ZrO 2 layer. of at least two layers, so that the appearance of the cortical diaphragm 10 presents colorful luster.
  • the thickness of the coating layer 14 is 120 nm-600 nm, specifically, but not limited to, 130 nm, 150 nm, 180 nm, 200 nm, 300 nm, 500 nm, and 550 nm.
  • the coating layer 14 within this thickness range can be better combined with other structures, is not easy to fall off, and at the same time can improve the appearance of the cortical membrane 10 .
  • the coating layer 14 may be formed by, but not limited to, physical vapor deposition or chemical vapor deposition, such as low pressure chemical vapor deposition, atmospheric pressure chemical vapor deposition, plasma enhanced chemical vapor deposition, evaporation, sputtering , ion plating, etc.
  • FIG. 9 is a schematic structural diagram of a cortical diaphragm provided by another embodiment of the application, which is substantially the same as FIG. 1 , except that it further includes a protective layer 15 , and the protective layer 15 is disposed on the color texture layer 12 away from the foaming One side surface of layer 11 .
  • the protective layer 15 can enhance the delicate touch of the cortical diaphragm 10, and also has anti-fouling and anti-fingerprint effects.
  • the optical transmittance of the protective layer 15 is greater than 85%, 88%, 90% or 92%, so as to facilitate the presentation of leather texture and flashing effect.
  • the thickness of the protective layer is less than 10% of the height of the textured structure. Therefore, while protecting the cortical membrane 10, the tactile feeling generated by the textured structure is not affected, and the tactile feeling of the texture is also provided while having a flashing effect. Further, the thickness of the protective layer is less than 8% of the height of the textured structure. Specifically, the thickness of the protective layer is less than 4%, 5%, 6%, 7%, 8% or 9% of the height of the textured structure. In one embodiment, the thickness of the protective layer 15 is 3 ⁇ m-10 ⁇ m. Further, the thickness of the protective layer 15 is 5 ⁇ m-7 ⁇ m.
  • the thickness of the protective layer 15 may be, but not limited to, 4 ⁇ m, 6 ⁇ m, 7 ⁇ m, 8 ⁇ m or 9 ⁇ m.
  • the protective layer 15 with the above-mentioned thickness will not block the flash effect, nor affect the leather texture of the cortical diaphragm 10, and can also play a protective role at the same time.
  • the protective layer 15 may be prepared by mixing a protective agent with a resin of the same material as the color texture layer 12 .
  • a protective agent can be mixed into polyurethane, but not limited to, and coated on the surface of the color texture layer 12 , and the protective layer 15 is formed after curing.
  • the resin material selects a resin with a higher melting point, for example, a melting point greater than 140° C., to prevent damage to the film layer structure caused by high temperature treatments such as curing during the preparation process.
  • FIG. 10 is a schematic structural diagram of a cortical membrane provided in another embodiment of the application.
  • the cortical membrane 10 includes a base fabric layer 13 , a foam layer 11 , a color texture layer 12 , a protective layer 15 and a coating layer that are stacked in sequence.
  • Layer 14 When the material of the coating layer 14 is an inorganic substance, at this time, the coating layer 14 is arranged between the color texture layer 12 and the protective layer 15, which will reduce the bonding force of the overall structure, thereby affecting the stability. Therefore, the coating layer 14 is provided on the protective layer. The surface of the side 15 away from the color texture layer 12 is beneficial to the improvement of structural stability.
  • the coating layer 14 when the material of the coating layer 14 is organic, the coating layer 14 may be disposed between the color texture layer 12 and the protective layer 15 ; when the color texture layer 12 includes the color layer 121 and the texture layer 122 , the coating layer 14 may be disposed between the color layer 121 and the texture layer 122 .
  • the leather diaphragm 10 provided by the present application has both a leather texture and a glittering sand effect, and has strong appearance expression, avoids homogenization, and is beneficial to its application.
  • the present application also provides a method for preparing a cortical patch, and the preparation method prepares the cortical patch 10 of any of the foregoing embodiments, including:
  • a color texture layer is formed on the foam layer to obtain a cortical film sheet, wherein the surface of the color texture layer away from the foam layer has a plurality of texture structures, and the texture structures are pointed protrusions and/or concave structures.
  • forming the color texture layer includes: providing a release paper, the surface of the release paper has a preset texture, and the preset texture corresponds to the texture structure; coating the surface of the release paper with the preset texture The colored resin is transferred to the foamed layer after curing to obtain a colored textured layer.
  • forming the color texture layer includes: forming a color layer on the foam layer; providing a release paper, the surface of the release paper has a preset texture, and the preset texture corresponds to the texture structure; The surface of the model paper with preset texture is coated with transparent resin, and after curing, a texture layer is obtained; the texture layer is transferred to the color layer to obtain a color texture layer.
  • FIG. 11 is a flowchart of a method for preparing a cortical membrane provided in an embodiment of the application, including:
  • Operation 101 Provide release paper, the surface of the release paper has a preset texture, and the preset texture corresponds to the texture structure.
  • Operation 102 Coating colored resin on the surface of the release paper with the preset texture, and obtaining a colored texture layer after curing.
  • Operation 103 Disposing a color texture layer on the surface of the foam layer to obtain a cortical membrane.
  • the textured structure may be formed on the surface of the mold, and the textured structure on the surface of the mold is transferred to the surface of the release paper by transferring, so that the surface of the release paper forms a preset texture corresponding to the textured structure.
  • a texture structure is formed on the surface of the steel film by CNC processing, and the texture structure on the surface of the steel film is rubbed onto the surface of the release paper by transfer printing, and a preset corresponding to the texture structure is formed on the surface of the release paper. texture.
  • the release paper is used as a carrier and a mold, and the texture on the surface of the release paper is transferred with a colored resin to form the color texture layer 12 .
  • curing includes treating at 100°C-150°C for 1 min-10 min. Further, curing includes treating at 110°C-140°C for 3min-8min. Further, curing includes treating at 120°C-135°C for 4min-7min.
  • a colored resin is coated on the release paper, and after curing, the colored textured layer 12 is formed; In another embodiment of the present application, a colored resin is coated on the release paper, and after curing, the color texture layer 12 is formed; an adhesive is coated on the surface of the color texture layer 12 and bonded with the foam layer 11 . , and peel off the release paper.
  • FIG. 12 is a flowchart of a method for preparing a cortical patch provided by another embodiment of the present application, including:
  • Operation 201 A color layer is formed on the foamed layer.
  • Operation 202 Provide release paper, the surface of the release paper has a preset texture, and the preset texture corresponds to the texture structure.
  • Operation 203 Coat the surface of the release paper with the preset texture with a transparent resin, and obtain a textured layer after curing.
  • Operation 204 Transfer the texture layer onto the color layer to obtain a cortical patch.
  • the colored resin may be applied and cured to form the colored layer 121 , and then laminated with the foamed layer 11 .
  • it can be connected by, but not limited to, an adhesive. Therefore, the colored resin will not penetrate into the porous structure of the foamed layer 11 before curing, so as to ensure the soft and elastic texture of the foamed layer 11 .
  • the preparation method of the cortical membrane sheet 10 provided in the present application is simple to operate, easy to mass-produce, and can produce the cortical membrane sheet 10 with rich appearance effects.
  • the present application also provides a housing assembly 100 including the cortical diaphragm 10 of any of the above embodiments.
  • FIG. 13 is a schematic structural diagram of a casing assembly according to an embodiment of the present application, wherein the casing assembly 100 includes a casing 20 and a cortical membrane 10 .
  • the casing 20 with the leather membrane 10 has both a leather texture and a glittering effect, with rich appearance effects.
  • the cortical diaphragm 10 is provided on the surface of the housing 20 .
  • the casing 20 has an inner surface and an outer surface arranged oppositely. In order to realize the tactile feeling of leather, the leather membrane 10 is arranged on the outer surface of the casing 20 .
  • the material of the casing 20 is not particularly limited, and may be, but not limited to, any known material that can be used for the casing 20 of an electronic device.
  • the material of the housing 20 may include, but is not limited to, at least one of plastic, glass, ceramic, and metal.
  • the material of the housing 20 includes plastic, and the plastic includes at least one of polycarbonate, polymethyl methacrylate, polyethylene terephthalate, polyethylene, polypropylene and thermoplastic polyurethane A sort of.
  • the casing 20 can be formed by laminating a polymethyl methacrylate layer and a polycarbonate layer, but not limited to.
  • the thickness of the case 20 is not particularly limited.
  • the thickness of the casing 20 is 0.1 mm-1 mm.
  • the thickness of the casing 20 can be, but not limited to, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, etc., so as to meet the impact resistance requirements and not be too thick , to meet the needs of thinning.
  • the specific shape and size of the housing 20 are not limited, and can be selected and designed according to actual needs.
  • the housing 20 may be, but not limited to, a rear case, a middle frame, a decorative part, and the like of an electronic device.
  • the present application also provides an electronic device, including the housing assembly 100 of any of the foregoing embodiments.
  • the electronic device may be, but not limited to, a mobile phone, a tablet computer, a notebook computer, a watch, MP3, MP4, GPS navigator, digital camera, and the like.
  • the following takes a mobile phone as an example for description.
  • FIG. 14 is a schematic structural diagram of an electronic device according to an embodiment of the application.
  • the electronic device includes a housing assembly 100 and a main board.
  • the electronic device having the above-mentioned housing assembly 100 has a leather touch and a glittering sand effect, avoiding the need for Homogenization greatly enhances the competitiveness of products.

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Abstract

本申请提供了一种皮质膜片，包括发泡层和颜色纹理层，所述颜色纹理层远离所述发泡层的一侧表面具有多个纹理结构，所述纹理结构为尖状凸起和/或凹陷结构。设置的发泡层使得皮质膜片具有皮革的软弹触感，设置的颜色纹理层使得皮质膜片具有一定的色彩，同时光线能够在纹理结构表面发生反射、散射和折射，使得皮质膜片具有闪闪发光的视觉效果，极大提升了皮质膜片的外观效果。本申请还提供了具有皮质膜片的制备方法、具有上述皮质膜片的壳体组件和电子设备，以提高产品竞争力，满足使用需求。

Description

皮质膜片及其制备方法、壳体组件和电子设备 技术领域
本申请属于电子产品技术领域，具体涉及皮质膜片及其制备方法、壳体组件和电子设备。
背景技术
为提升电子设备竞争力，其外观效果的变动也越发受到重视。相关技术中，真皮制作的壳体大大提升了外观质感。由于真皮价格昂贵，故较多采用人工皮革，既保持了真皮的质感，同时价格低廉。人工皮革只能呈现单一的实色，外观可变性小，因此制得的壳体同质化现象严重。
发明内容
鉴于此，本申请提供了一种皮质膜片及其制备方法、壳体组件和电子设备，该皮质膜片既具有皮革的质感，又呈现闪光砂的视觉效果，外观效果丰富，从而提升壳体组件和电子设备的外观效果，避免同质化，提升产品竞争力。
第一方面，本申请提供了一种皮质膜片，包括发泡层和颜色纹理层，所述颜色纹理层远离所述发泡层的一侧表面具有多个纹理结构，所述纹理结构为尖状凸起和/或凹陷结构。
第二方面，本申请提供了一种皮质膜片的制备方法，包括：
在发泡层上成型颜色纹理层，得到皮质膜片，其中，所述颜色纹理层远离所述发泡层的一侧表面具有多个纹理结构，所述纹理结构为尖状凸起和/或凹陷结构。
第三方面，本申请提供了一种壳体组件，包括壳体和设置在壳体上的皮质膜片，所述皮质膜片包括发泡层和颜色纹理层，所述颜色纹理层远离所述发泡层的一侧表面具有多个纹理结构，所述纹理结构为尖状凸起和/或凹陷结构。
第四方面，本申请提供了一种电子设备，包括壳体组件和主板，所述壳体组件包括壳体和设置在壳体上的皮质膜片，所述皮质膜片包括发泡层和颜色纹理层，所述颜色纹理层远离所述发泡层的一侧表面具有多个纹理结构，所述纹理结构为尖状凸起和/或凹陷结构。
附图说明
为了更清楚地说明本申请实施方式中的技术方案，下面将对本申请实施方式中所需要使用的附图进行说明。
图1为本申请一实施方式提供的皮质膜片的结构示意图。
图2为本申请一实施方式提供的颜色纹理层的结构示意图。
图3为本申请另一实施方式提供的颜色纹理层的结构示意图。
图4为本申请另一实施方式提供的皮质膜片的结构示意图。
图5为本申请一实施方式提供的离型纸的结构示意图。
图6为本申请另一实施方式提供的离型纸的结构示意图。
图7为本申请另一实施方式提供的皮质膜片的结构示意图。
图8为本申请另一实施方式提供的皮质膜片的结构示意图。
图9为本申请另一实施方式提供的皮质膜片的结构示意图。
图10为本申请另一实施方式提供的皮质膜片的结构示意图。
图11为本申请一实施方式提供的皮质膜片的制备方法流程图。
图12为本申请另一实施方式提供的皮质膜片的制备方法流程图。
图13为本申请一实施方式提供的壳体组件的结构示意图。
图14为本申请一实施方式提供的电子设备的结构示意图。
标号说明：
发泡层-11，颜色纹理层-12，颜色层-121，纹理层-122，第一基准面-123，第二基准面-124，第三基准面-125，基布层-13，镀膜层-14，防护层-15，皮质膜片-10，壳体-20，壳体组件-100。
具体实施方式
以下是本申请的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本申请原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也视为本申请的保护范围。
下文的公开提供了许多不同的实施方式或例子用来实现本申请的不同结构。为了简化本申请的公开，下文中对特定例子的部件和设置进行描述。当然，它们仅仅为示例，并且目的不在于限制本申请。此外，本申请可以在不同例子中重复参考数字和/或参考字母，这种重复是为了简化和清楚的目的，其本身不指示所讨论各种实施方式和/或设置之间的关系。此外，本申请提供了的各种特定的工艺和材料的例子，但是本领域普通技术人员可以意识到其他工艺的应用和/或其他材料的使用。
本申请实施例提供了一种皮质膜片，包括发泡层和颜色纹理层，所述颜色纹理层远离所述发泡层的一侧表面具有多个纹理结构，所述纹理结构为尖状凸起和/或凹陷结构。
其中，所述纹理结构具有至少一个反光面。
其中，所述纹理结构为微米级结构。
其中，所述纹理结构的高度为所述颜色纹理层厚度的70％-90％。
其中，所述纹理结构的高度为10μm-50μm。
其中，相邻所述纹理结构之间的间距为2μm-30μm，所述纹理结构的分布密度为20个/cm 2-1000个/cm 2。
其中，所述纹理结构包括多个反光面，所述反光面为侧向反光面，多个所述侧向反光面相交于中心点或中心线，且相邻所述侧向反光面相交；或
所述纹理结构包括多个反光面，所述反光面为多个侧向反光面和中心反光面，每一所述侧向反光面与所述中心反光面相交，相邻所述侧向反光面相交。
其中，所述纹理结构包括棱锥结构和类棱锥结构中的至少一种。
其中，所述颜色纹理层包括纹理层和设置在所述纹理层和所述发泡层之间的颜色层，所述纹理结构设置在所述纹理层表面。
其中，所述颜色纹理层的材质包括聚氨酯和聚氯乙烯中的至少一种。
其中，还包括基布层，所述基布层设置在所述发泡层远离所述颜色纹理层的一侧表面。
其中，还包括镀膜层，所述镀膜层设置在所述颜色纹理层远离所述发泡层的一侧表面。
其中，还包括防护层，所述防护层设置在所述颜色纹理层远离所述发泡层的一侧表面。
其中，所述防护层的厚度小于所述纹理结构高度的10％。
其中，防护层的厚度为3μm-10μm。
本申请实施例还提供了一种皮质膜片的制备方法，包括：在发泡层上成型颜色纹理层，得到皮质膜片，其中，所述颜色纹理层远离所述发泡层的一侧表面具有多个纹理结构，所述纹理结构为尖状凸起和/或凹陷结构。
其中，所述成型颜色纹理层包括：提供离型纸，所述离型纸的表面具有预设纹理，所述预设纹理与所述纹理结构相对应；在所述离型纸具有所述预设纹理的表面涂覆有色树脂，经固化后转移至所述发泡层上，得到所述颜色纹理层。
其中，所述成型颜色纹理层包括：在所述发泡层上成型颜色层；提供离型纸，所述离型纸的表面具有预设纹理，所述预设纹理与所述纹理结构相对应；在所述离型纸具有所述预设纹理的表面涂覆透明树脂，经固化后得到所述纹理层；将所述纹理层转移至所述颜色层上，得到所述颜色纹理层。
本申请实施例还提供了一种壳体组件，包括壳体和设置在壳体上的皮质膜片，所述皮质膜片包括发泡层和颜色纹理层，所述颜色纹理层远离所述发泡层的一侧表面具有多个纹理结构，所述纹理结构为尖状凸起和/或凹陷结构。
本申请实施例还提供了一种电子设备，包括壳体组件和主板，所述壳体组件包括壳体和设置在壳体上的皮质膜片，所述皮质膜片包括发泡层和颜色纹理层，所述颜色纹理层远离所述发泡层的一侧表面具有多个纹理结构，所述纹理结构为尖状凸起和/或凹陷结构。
请参考图1，为本申请一实施方式提供的皮质膜片的结构示意图，皮质膜片10包括发泡层11和颜色纹理层12，颜色纹理层12远离发泡层11的一侧表面具有多个纹理结构，纹理结构为尖状凸起和/或凹陷结构。相关技术中，采用真皮制作皮质层时，增加了制备成本，同时也不利于动物保护；采用皮革制作皮质层时，皮质层外观变化小，同质化现象严重。在本申请中，通过设置发泡层11和颜色纹理层12，使得皮质膜片10具有皮革质感，同时光线在纹理结构上发生反射、散射和折射等，进而产生闪光砂的效果，使得皮质膜片10具有闪闪发光的效果，提升了皮质膜片10的灵动感和美感，丰富了皮质膜片10的外观效果，避免同质化，有利于其应用。
在本申请中，发泡层11柔软、回弹性好，赋予皮质膜片10软弹的触感，使得皮质膜片10具有皮质质感。可选的，发泡层11的材质包括聚氨酯、聚氯乙烯、热塑性弹性体和乙烯-醋酸乙烯共聚物中的至少一种。在本申请实施方式中，发泡层11的制备方法包括涂覆发泡浆料，经发泡后成型。在一实施例中，发泡浆料包括主料和发泡剂，主料包括聚氨 酯、聚氯乙烯、热塑性弹性体和乙烯-醋酸乙烯共聚物中的至少一种。进一步的，发泡浆料还包括发泡助剂、流平剂、消泡剂和稳定剂中的至少一种，从而可以提高发泡层11的性能。具体的，可以但不限于为发泡浆料包括100重量份的主料，2重量份-15重量份的发泡剂，0.5重量份-3重量份的稳定剂，有利于形成合适数量的孔洞，获得软弹质感的发泡层11。在一具体实施例中，发泡层11的材质包括聚氨酯。在一实施例中，发泡包括在100℃-200℃烘干30s-90s，从而有利于孔洞的形成和分布，提升发泡层11的质感。在本申请中，发泡层11的厚度可以根据需要进行选择。在本申请实施方式中，发泡层11的厚度为50μm-600μm，既能够赋予皮质膜片10软弹的质感，同时不会过多增加皮质膜片10的厚度。进一步的，发泡层11的厚度为100μm-300μm。具体的，发泡层11的厚度可以但不限于为50μm、80μm、100μm、150μm、200μm、350μm或500μm。
在本申请中，颜色纹理层12的设置使得皮质膜片10具有一定的色彩，并且颜色纹理层12的表面具有多个纹理结构，纹理结构为尖状凸起和/或凹陷结构，从而在转动皮质膜片10的过程中，光线在纹理结构上发生反射、散射以及折射现象，从而使得皮质膜片10具有闪光砂的外观效果，相较于在皮质层上涂覆珠光粉相比，颜色纹理层12的纹理结构分布可控性高，使得闪光效果分布可控性高，分布均匀性好，产品良率高，有利于大规模应用。
在本申请中，颜色纹理层12表面的纹理结构为尖状的凸起和尖状的凹陷结构中的至少一种，纹理结构具有至少一个反光面。可以理解的，当光线照射在颜色纹理层12表面时，光线在纹理结构的反光面发生镜面反射，在转动皮质膜片10后，反射光线的方向发生变化，反射光线在进入人眼或未进入人眼之间转换，从而实现了一闪一闪的效果，达到类似闪光砂的外观效果。在本申请实施方式中，纹理结构为微米级结构。此时，纹理结构在折光和反光的过程中，使得皮质膜片10的外观呈现星星点点的闪光效果，细腻感增强。在一实施例中，纹理结构的高度为颜色纹理层厚度的70％-90％。从而使得在皮质膜片10在使用过程中，纹理结构不会被轻易的磨损，表面耐性增强，能够维持长时间的闪光砂效果，提高皮质膜片10的使用寿命。进一步的，纹理结构的高度为颜色纹理层厚度的75％-88％。更进一步的，纹理结构的高度为颜色纹理层厚度的77％-85％。具体的，纹理结构的高度为颜色纹理层厚度的72％、76％、80％、83％、84％、87％或89％。在另一实施例中，纹理结构的高度为10μm-50μm。从而可以更好地实现立体外观效果。进一步的，纹理结构的高度为15μm-45μm。更进一步的，纹理结构的高度为20μm-40μm。具体的，纹理结构的高度可以但不限于为15μm、25μm、30μm、35μm、42μm、46μm或50μm。可以理解的，当纹理结构为尖状凹陷结构时，此时纹理结构的高度指的是尖状凹陷结构的深度。在另一实施例中，纹理结构的横向尺寸为50μm-400μm。进一步的，纹理结构的横向尺寸为60μm-300μm。具体的，纹理结构的横向尺寸可以但不限于为55μm、95μm、130μm、200μm、290μm、320μm或360μm。其中，横向尺寸为纹理结构在颜色纹理层12上的正投影的轮廓线上任意两点之间距离的最大值。
在本申请中，多个纹理结构可以连续设置，也可以间隔设置，还可以部分连续设置， 部分间隔设置。连续设置的纹理结构可以呈现连续的闪光点，闪光效果集中；间隔设置的纹理结构可以使得闪光点分散，每一个纹理结构在不同角度下的闪光效果都能较好的呈现出来。在本申请一实施方式中，多个纹理结构间隔设置，相邻纹理结构之间的间距为2μm-30μm。从而有利于闪光效果的呈现。可以理解的，相邻纹理结构之间的间距为相邻纹理结构在颜色纹理层12上的正投影的轮廓线之间的最小距离。进一步的，相邻纹理结构之间的间距为5μm-28μm。更进一步的，相邻纹理结构之间的间距为10μm-25μm。具体的，相邻纹理结构之间的间距可以但不限于为6μm、12μm、15μm、18μm、20μm或26μm。在一实施例中，多个纹理结构在颜色纹理层12表面呈规则排布，呈现均匀分散的闪光效果。在另一实施例中，多个纹理结构在颜色纹理层12呈不规则排布。在本申请实施方式中，纹理结构的分布密度为20个/cm 2-1000个/cm 2，从而更容易呈现闪光砂效果，避免大面积反光形成的非闪光效果的出现。进一步的，纹理结构的分布密度为50个/cm 2-950个/cm 2，呈现更加密集的闪光砂效果。更进一步的，纹理结构的分布密度为100个/cm 2-800个/cm 2。具体的，纹理结构的分布密度可以但不限于为75个/cm 2、100个/cm 2、250个/cm 2、380个/cm 2、440个/cm 2、500个/cm 2、620个/cm 2或850个/cm 2。
在本申请中，纹理结构可以是规则形状，也可以为不规则形状。在本申请实施方式中，纹理结构可以是具有多个侧面，不同侧面之间具有夹角，也可以是具有曲面侧面。在本申请一实施方式中，纹理结构包括了多个反光面，该反光面为侧向反光面，多个侧向反光面相交于中心点或中心线，且相邻侧向反光面相交。在本申请另一实施方式中，纹理结构包括了多个反光面，该反光面为多个侧向反光面和中心反光面，每一侧向反光面与中心反光面相交，相邻侧向反光面相交。进一步的，纹理结构的反光面为光滑表面，从而可以实现镜面反射，光线变化效果明显，有利于实现闪光。在一实施例中，纹理结构包括棱锥结构和类棱锥结构中的至少一种。此时，光线在纹理结构的侧面以及尖部发生反射、散射和折射，当转动皮质膜片10时，入射角度发生变化，从而使得反射光线、散射光线以及折射光线发生变化，进而实现闪光砂效果。具体的，纹理结构可以但不限于为三棱锥、四棱锥、三类棱锥、四类棱锥等。可以理解的，棱锥结构和类棱锥结构均具有尖部，棱锥结构和类棱锥结构的侧面为棱切面，每个棱切面都可以实现镜面反射，形成闪光点；棱锥的尖部可以呈点状，也可以为线状；与棱锥结构不同的是，类棱锥结构的尖部可以是平面，也可以是曲面，例如类棱锥结构可以为棱台。在一实施例中，当纹理结构为尖状凸起结构时，纹理结构可以但不限于为三棱锥、四棱锥、三类棱锥、四类棱锥等；在另一实施例中，当纹理结构为尖状凹陷结构时，纹理结构可以但不限于为倒三棱锥、倒四棱锥、倒三类棱锥、倒四类棱锥等。具体的，当纹理结构为正三棱锥时，在颜色纹理层12的表面呈现为金字塔状或倒金字塔状，三棱锥的三个棱面为侧向反光面，对光线进行镜面反射，在入射光线角度变化时，产生闪光效果；当纹理结构为正六棱台时，六棱台类似于钻石的冠部，具有多个侧向反光面和一个中心反光面，在入射光线角度变化时，产生闪光效果。在本申请中，每个纹理结构的尺寸、形状可以相同，也可以不同。在一实施例中，多个纹理结构的高度、横向尺寸和形状中至少有一个参数不同，以使得在不同角度下皮质膜片10可以呈现明显的 闪光效果，提升外观表现力。
可以理解的，凸起结构和凹陷结构是以不同的基准面来说的。请参阅图2，为本申请一实施方式提供的颜色纹理层的结构示意图，其中，以第一基准面123作为基准时，则颜色纹理层12的表面的纹理结构为尖状凸起结构，以第二基准面124作为基准时，则颜色纹理层12的表面的纹理结构为尖状凹陷结构。可以理解的，图2为截面图，因此基准面在图2中呈线状。请参阅图3，为本申请另一实施方式提供的颜色纹理层的结构示意图，其中，以第三基准面125作为基准时，则颜色纹理层12的表面的纹理结构为尖状凸起结构和尖状凹陷结构。
在本申请实施方式中，颜色纹理层12的材质包括聚氨酯和聚氯乙烯中的至少一种。从而可以使得颜色纹理层12也具有一定的弹性，与发泡层11层叠设置后实现皮质的触感。进一步的，颜色纹理层12的材质还包括颜料；通过控制加入的颜料色彩，从而实现不同的颜色外观效果。更进一步的，颜色纹理层12中聚氨酯和聚氯乙烯中的至少一种占100重量份，颜料占1重量份-15重量份。在一实施例中，颜色纹理层12的材质与发泡层11的材质相同，从而可以使得两层在层叠过程中可以更好地结合在一起，提高皮质膜片10的结构稳定性。在一具体实施例中，颜色纹理层12的材质与发泡层11的材质均为聚氨酯。进一步的，聚氨酯包括聚酯型、聚醚型和聚碳酸酯型中的至少一种。在另一具体实施例中，颜色纹理层12的材质与发泡层11的材质均为聚氯乙烯。在本申请中，颜色纹理层12的厚度可以根据需要进行选择。在本申请实施方式中，颜色纹理层12的厚度为30μm-100μm。进一步的，颜色纹理层12的厚度为30μm-60μm。具体的，颜色纹理层12的厚度可以但不限于为35μm、40μm、45μm、50μm、60μm、70μm、80μm或95μm。
在本申请一实施方式中，颜色纹理层12为单层结构，也就是说，颜色纹理层12为一体结构。在一实施例中，可以通过在离型纸上涂覆有色树脂，经固化成型颜色纹理层12，其中，离型纸的表面具有与纹理结构相对应的预设纹理。可选的，有色树脂为聚氨酯和聚氯乙烯中的至少一种和颜料。也就是说，将离型纸作载体和模具，用有色树脂把离型纸表面的纹路进行转印，成型颜色纹理层12。进一步的，固化包括在100℃-150℃处理1min-10min。在一具体实施例中，在离型纸上涂覆有色树脂，经固化后形成颜色纹理层12；将颜色纹理层12与离型纸剥离后，再与发泡层11层叠设置在一起。具体的，可以但不限于通过粘结剂连接。在另一具体实施例中，在离型纸上涂覆有色树脂，经固化后形成颜色纹理层12；将发泡层11设置在颜色纹理层12的表面后，再将离型纸剥离。具体的，可以但不限于通过粘结剂连接。可选的，发泡层11和颜色纹理层12之间还包括连接层。进一步的，连接层的材质与发泡层11和颜色纹理层12中的至少一层的材质相同，从而提升结合力。更进一步的，连接层中聚氨酯和聚氯乙烯中的至少一种占100重量份，粘结剂占5重量份-20重量份。
在本申请另一实施方式中，请参阅图4，为本申请另一实施方式提供的皮质膜片的结构示意图，其中，颜色纹理层12包括纹理层122和设置在纹理层122和发泡层11之间的颜色层121。在一实施例中，可以在发泡层11上成型颜色层121；在离型纸上涂覆透明树 脂，经固化成型纹理层122，其中，离型纸的表面具有与纹理结构相对应的预设纹理；再将纹理层122转移至颜色层121上，形成颜色纹理层12。可选的，有色树脂为聚氨酯和聚氯乙烯中的至少一种和颜料，透明树脂为聚氨酯和聚氯乙烯中的至少一种。进一步的，固化包括在100℃-150℃处理1min-10min。在一实施例中，纹理层122的光学透过率大于85％，以避免影响颜色层121效果的呈现。在一具体实施例中，可以涂覆有色树脂固化形成颜色层121后，再与发泡层11层叠设置。具体的，可以但不限于通过粘结剂连接。从而可以使得在有色树脂固化之前不会渗入发泡层11的多孔结构中，保证发泡层11的软弹质感。在另一具体实施例中，在离型纸上涂覆透明树脂，经固化后形成纹理层122；将纹理层122与离型纸剥离后，再与颜色层121层层叠设置在一起。在又一具体实施例中，在离型纸上涂覆透明树脂，经固化后形成纹理层122；将颜色层121设置在纹理层122的表面后，再将离型纸剥离。在一实施例中，可以通过控制有色树脂和透明树脂中各成分的比例及含量，使得颜色纹理层12具有一定的软度和弹性，增强皮质膜片10的皮革触感。在另一实施例中，颜色纹理层12为实色层，以使得颜色纹理层12可以对发泡层11进行遮挡，避免发泡层11外观效果的呈现，更有利于皮革质感的实现。可选的，颜色纹理层12的光学透过率小于30％。进一步的，颜色纹理层12的光学透过率小于10％。
在本申请又一实施方式中，可以将纹理结构成型在模具表面，通过转印，将模具表面的纹理结构转印至离型纸表面，使得离型纸表面形成与纹理结构相对应的预设纹理。在一实施例中，通过CNC加工在钢膜表面形成纹理结构，通过转印，将钢膜表面的纹理结构拓印至离型纸表面，在离型纸表面形成与纹理结构相对应的预设纹理。在一具体实施例中，通过在模具上成型倒三棱锥型的纹理结构，即此时纹理结构为尖状凹陷结构；将纹理结构拓印至离型纸表面，在离型纸表面形成了三棱锥结构，棱边长度为50μm-300μm，高度为10μm-50μm，多个三棱锥结构之间的间距为2μm-30μm；再将有色树脂涂覆在离型纸上，固化形成颜色纹理层12，该颜色纹理层12具有倒三棱锥状的凹陷结构，棱面可以形成反光层，对光线进行反射，在转动皮质膜片10时形成闪闪发光的效果。请参阅图5，为本申请一实施方式提供的离型纸的结构示意图，其中离型纸上具有多个三棱锥结构，A点和B点之间的距离为189μm，B点和C点之间的距离为189μm。请参阅图6，为本申请另一实施方式提供的离型纸的结构示意图，其中离型纸上具有多个三棱锥结构，以三棱锥的尖端为基准点Z，图中D点、E点、F点、G点、H点、I点与Z点之间的间距分别为61.21μm、64.21μm、59.59μm、61.21μm、13.87μm、9.37μm和5.91μm。
在本申请实施方式中，皮质膜片10还包括皮纹，皮纹设置在颜色纹理层12的表面。具体的，皮纹可以但不限于为牛皮纹、荔枝纹、蛇皮纹等。在一实施例中，皮纹与纹理结构设置在颜色纹理层12的同侧表面。进一步的，皮纹与纹理结构设相邻设置。具体的，可以通过控制离型纸上预设纹理的形状以及分布，使得颜色纹理层12上的皮纹可以呈图案化设置，或纹理结构可以呈图案化设置，如文字、图形等，从而可以在皮质膜片10上实现具有皮纹的图案化效果或具有闪光砂的图案化效果，丰富皮质膜片10的外观。
请参阅图7，为本申请另一实施方式提供的皮质膜片的结构示意图，其与图1大体相 同，不同之处在于还包括基布层13，基布层13设置在发泡层11远离颜色纹理层12的一侧表面。在本申请中，基布层13作为衬底，用于承载发泡层11和颜色纹理层12，同时又增加了皮质膜片10的软度。在一实施例中，基布层13包括织造布和非织造布中的至少一种。具体的，基布层13包括尼龙布、涤纶布等。在另一实施例中，基布层13的厚度为50μm-500μm。既能够用于承载发泡层11和颜色纹理层12，又不会过多增加皮质膜片10的重量。进一步的，基布层13的厚度为80μm-400μm。在一具体实施例中，可以将发泡浆料涂覆在基布层13的表面，经发泡后形成发泡层11。
请参阅图8，为本申请另一实施方式提供的皮质膜片的结构示意图，其与图1大体相同，不同之处在于还包括镀膜层14，镀膜层14设置在颜色纹理层12远离发泡层11的一侧表面。在本申请中，镀膜层14是一种通过其界面传播光线的光学介质材料层，可以改变穿过镀膜层14的光线的反射、折射等，使得皮质膜片10呈现一定的光泽变化，如在不同角度下呈现出不同颜色光泽的视觉效果。在本申请实施方式中，镀膜层14的光学透过率大于85％、88％、90％或92％，以利于皮革质感以及闪光效果的呈现。可以理解的，通过改变镀膜层14的材质、厚度和层数等改变反射率、折射率和透光率，实现不同的视觉效果，满足不同场景下的需求。可选的，镀膜层14由至少两种具有不同折射率的光学薄膜交替层叠形成。进一步的，镀膜层14由至少两种具有不同折射率的薄膜周期性地交替层叠形成。具体的，可以通过控制堆叠的光学薄膜的厚度呈递增或递减的变化，从而形成彩虹光泽。镀膜层14的材质可以为无机物，也可以为有机物。可选的，有机物包括聚醚、聚酯、氟代聚合物和含硅聚合物中的至少一种。当镀膜层14的材质为有机物时，镀膜层14柔性好，可弯曲性好，与其他结构的结合力强。可选的，无机物包括TiO 2、Ti 3O 5、Nb 2O 3、Nb 2O 5、SiO 2、Ta 2O 5、HfO 2和ZrO 2中的至少一种。在一实施例中，镀膜层14包括TiO 2层、Ti 3O 5层、Nb 2O 3层、Nb 2O 5层、SiO 2层、Ta 2O 5层、HfO 2层和ZrO 2层中的至少两层，以使得皮质膜片10的外观呈现彩色光泽。在一实施例中，镀膜层14的厚度为120nm-600nm，具体的可以但不限于为130nm、150nm、180nm、200nm、300nm、500nm、550nm。在该厚度范围内的镀膜层14可以与其他结构更好地结合，不易脱落，同时又可以改善皮质膜片10的外观效果。在本申请实施方式中，可以但不限于通过物理气相沉积或化学气相沉积的方法成型镀膜层14，如低压化学气相沉积、常压化学气相沉积、等离子体增强化学气相沉积、蒸镀、溅射、离子镀等。
请参阅图9，为本申请另一实施方式提供的皮质膜片的结构示意图，其与图1大体相同，不同之处在于还包括防护层15，防护层15设置在颜色纹理层12远离发泡层11的一侧表面。在本申请中，防护层15能够增强皮质膜片10的细腻触感，同时还具有防污、防指纹效果。在本申请实施方式中，防护层15的光学透过率大于85％、88％、90％或92％，以利于皮革质感以及闪光效果的呈现。在本申请实施方式中，防护层的厚度小于纹理结构高度的10％。从而可以在保护皮质膜片10的同时，又不会对纹理结构产生的触感造成影响，在具有闪光效果的同时，还具有纹理的触感。进一步的，防护层的厚度小于纹理结构高度的8％。具体的，防护层的厚度小于纹理结构高度的4％、5％、6％、7％、8％或9％。在一 实施例中，防护层15的厚度为3μm-10μm。进一步的，防护层15的厚度为5μm-7μm。具体的，防护层15的厚度可以但不限于为4μm、6μm、7μm、8μm或9μm。具有上述厚度的防护层15不会遮挡闪光效果，也不会影响皮质膜片10的皮革质感，同时还可以起到防护的作用。在另一实施例中，为了提高防护层15在皮质膜片10的附着力，可以采用与颜色纹理层12相同材质的树脂混合防护剂制备防护层15。具体的，可以但不限于在聚氨酯中混入防护剂，涂覆在颜色纹理层12的表面，经固化后形成防护层15。在本申请中，树脂材料选择熔点较高的树脂，例如熔点大于140℃，防止在制备过程中固化等高温处理对膜层结构造成破坏。
请参阅图10，为本申请另一实施方式提供的皮质膜片的结构示意图，皮质膜片10包括依次层叠设置的基布层13、发泡层11、颜色纹理层12、防护层15和镀膜层14。镀膜层14的材质为无机物时，此时镀膜层14设置在颜色纹理层12和防护层15之间会降低整体结构的结合力，从而影响稳定性，因此，将镀膜层14设置在防护层15远离颜色纹理层12一侧的表面，有利于结构稳定性的提升。在本申请另一实施例中，当镀膜层14的材质为有机物时，镀膜层14可以设置在颜色纹理层12和防护层15之间；当颜色纹理层12包括颜色层121和纹理层122时，镀膜层14可以设置在颜色层121和纹理层122之间。
本申请提供的皮质膜片10既具有皮革质感，又具有闪光砂效果，外观表现力强，避免了同质化，有利于其应用。
本申请还提供了皮质膜片的制备方法，该制备方法制备上述任一实施例的皮质膜片10，包括：
在发泡层上成型颜色纹理层，得到皮质膜片，其中，颜色纹理层远离发泡层的一侧表面具有多个纹理结构，纹理结构为尖状凸起和/或凹陷结构。
在本申请一实施方式中，成型颜色纹理层包括：提供离型纸，离型纸的表面具有预设纹理，预设纹理与纹理结构相对应；在离型纸具有预设纹理的表面涂覆有色树脂，经固化后转移至发泡层上，得到颜色纹理层。在本申请另一实施方式中，成型颜色纹理层包括：在发泡层上成型颜色层；提供离型纸，离型纸的表面具有预设纹理，预设纹理与纹理结构相对应；在离型纸具有预设纹理的表面涂覆透明树脂，经固化后得到纹理层；将纹理层转移至颜色层上，得到颜色纹理层。
请参阅图11，为本申请一实施方式提供的皮质膜片的制备方法流程图，包括：
操作101：提供离型纸，离型纸的表面具有预设纹理，预设纹理与纹理结构相对应。
操作102：在离型纸具有预设纹理的表面涂覆有色树脂，经固化后得到颜色纹理层。
操作103：将颜色纹理层设置在发泡层的表面，得到皮质膜片。
在操作101中，可以将纹理结构成型在模具表面，通过转印，将模具表面的纹理结构转印至离型纸表面，使得离型纸表面形成与纹理结构相对应的预设纹理。在一实施例中，通过CNC加工在钢膜表面形成纹理结构，通过转印，将钢膜表面的纹理结构拓印至离型纸表面，在离型纸表面形成与纹理结构相对应的预设纹理。
在操作102中，将离型纸作载体和模具，用有色树脂把离型纸表面的纹路进行转印， 成型颜色纹理层12。在一实施例中，固化包括在100℃-150℃处理1min-10min。进一步的，固化包括在110℃-140℃处理3min-8min。进一步的，固化包括在120℃-135℃处理4min-7min。
在本申请一实施方式中，在离型纸上涂覆有色树脂，经固化后形成颜色纹理层12；将颜色纹理层12与离型纸剥离后，再与发泡层11层叠设置在一起。在本申请另一实施方式中，在离型纸上涂覆有色树脂，经固化后形成颜色纹理层12；在颜色纹理层12的表面涂覆粘结剂，并与发泡层11粘结后，将离型纸剥离。
请参阅图12，为本申请另一实施方式提供的皮质膜片的制备方法流程图，包括：
操作201：在发泡层上成型颜色层。
操作202：提供离型纸，离型纸的表面具有预设纹理，预设纹理与纹理结构相对应。
操作203：在离型纸具有预设纹理的表面涂覆透明树脂，经固化后得到纹理层。
操作204：将纹理层转移至颜色层上，得到皮质膜片。
在操作201中，可以涂覆有色树脂固化形成颜色层121后，再与发泡层11层叠设置。具体的，可以但不限于通过粘结剂连接。从而可以使得在有色树脂固化之前不会渗入发泡层11的多孔结构中，保证发泡层11的软弹质感。
在操作204中，将纹理层122与离型纸剥离后，再与颜色层121层层叠设置在一起，或在纹理层122表面涂覆粘结剂，并与颜色层121粘结后，将离型纸剥离。
在本申请提供的皮质膜片10的制备方法操作简单，易于大规模生产，可以制得具有丰富外观效果的皮质膜片10。
本申请还提供了一种壳体组件100，包括上述任一实施例的皮质膜片10。请参阅图13，为本申请一实施方式提供的壳体组件的结构示意图，其中壳体组件100包括壳体20和皮质膜片10。具有皮质膜片10的壳体20既具有皮革质感，又能够呈现闪闪发光的效果，外观效果丰富。在本申请实施方式中，皮质膜片10设置在壳体20的表面。壳体20具有相对设置的内表面和外表面，为了实现皮革的触感，皮质膜片10设置在壳体20的外表面。
在本申请中，对壳体20的材质不受特别限制，可以但不限于为任何已知的可以用于电子设备壳体20的材料。具体的，壳体20的材质可以但不限于包括塑胶、玻璃、陶瓷、金属中的至少一种。在本申请一实施方式中，壳体20的材质包括塑胶，塑胶包括聚碳酸酯、聚甲基丙烯酸甲酯、聚对苯二甲酸乙二醇酯、聚乙烯、聚丙烯和热塑性聚氨酯中的至少一种。具体的，壳体20可以但不限于为聚甲基丙烯酸甲酯层和聚碳酸酯层层叠形成。在本申请中，壳体20的厚度不受特别限制。在本申请一实施方式中，壳体20的厚度为0.1mm-1mm。具体的，壳体20的厚度可以但不限于为0.2mm、0.3mm、0.4mm、0.5mm、0.6mm、0.7mm、0.8mm、0.9mm等，以满足抗冲击的要求，并且不至于过厚，符合轻薄化的需求。在本申请中，对壳体20具体形状和尺寸不作限定，可以根据实际需要进行选择和设计，例如壳体20的形状可以为2D形状、2.5D形状、3D形状等。在本申请中，壳体20可以但不限于为电子设备的后壳、中框、装饰件等。
本申请还提供了一种电子设备，包括上述任一实施例的壳体组件100。可以理解的，电子设备可以但不限于为手机、平板电脑、笔记本电脑、手表、MP3、MP4、GPS导航仪、 数码相机等。下面以手机为例进行说明。请参阅图14，为本申请一实施方式提供的电子设备的结构示意图，电子设备包括壳体组件100和主板，具有上述壳体组件100的电子设备具有皮革的触感，以及闪光砂效果，避免了同质化，极大提升了产品的竞争力。
以上对本申请实施方式所提供的内容进行了详细介绍，本文对本申请的原理及实施方式进行了阐述与说明，以上说明只是用于帮助理解本申请的方法及其核心思想；同时，对于本领域的一般技术人员，依据本申请的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本申请的限制。

Claims (20)

  1. 一种皮质膜片，其特征在于，包括发泡层和颜色纹理层，所述颜色纹理层远离所述发泡层的一侧表面具有多个纹理结构，所述纹理结构为尖状凸起和/或凹陷结构。
  2. 如权利要求1所述的皮质膜片，其特征在于，所述纹理结构具有至少一个反光面。
  3. 如权利要求1所述的皮质膜片，其特征在于，所述纹理结构为微米级结构。
  4. 如权利要求3所述的皮质膜片，其特征在于，所述纹理结构的高度为所述颜色纹理层厚度的70％-90％。
  5. 如权利要求3所述的皮质膜片，其特征在于，所述纹理结构的高度为10μm-50μm。
  6. 如权利要求3所述的皮质膜片，其特征在于，相邻所述纹理结构之间的间距为2μm-30μm，所述纹理结构的分布密度为20个/cm 2-1000个/cm 2。
  7. 如权利要求1所述的皮质膜片，其特征在于，所述纹理结构包括多个反光面，所述反光面为侧向反光面，多个所述侧向反光面相交于中心点或中心线，且相邻所述侧向反光面相交；或
    所述纹理结构包括多个反光面，所述反光面为多个侧向反光面和中心反光面，每一所述侧向反光面与所述中心反光面相交，相邻所述侧向反光面相交。
  8. 如权利要求1所述的皮质膜片，其特征在于，所述纹理结构包括棱锥结构和类棱锥结构中的至少一种。
  9. 如权利要求1所述的皮质膜片，其特征在于，所述颜色纹理层包括纹理层和设置在所述纹理层和所述发泡层之间的颜色层，所述纹理结构设置在所述纹理层表面。
  10. 如权利要求1所述的皮质膜片，其特征在于，所述颜色纹理层的材质包括聚氨酯和聚氯乙烯中的至少一种。
  11. 如权利要求1所述的皮质膜片，其特征在于，还包括基布层，所述基布层设置在所述发泡层远离所述颜色纹理层的一侧表面。
  12. 如权利要求1所述的皮质膜片，其特征在于，还包括镀膜层，所述镀膜层设置在所述颜色纹理层远离所述发泡层的一侧表面。
  13. 如权利要求1所述的皮质膜片，其特征在于，还包括防护层，所述防护层设置在所述颜色纹理层远离所述发泡层的一侧表面。
  14. 如权利要求13所述的皮质膜片，其特征在于，所述防护层的厚度小于所述纹理结构高度的10％。
  15. 如权利要求14所述的皮质膜片，其特征在于，所述防护层的厚度为3μm-10μm。
  16. 一种皮质膜片的制备方法，其特征在于，包括：
    在发泡层上成型颜色纹理层，得到皮质膜片，其中，所述颜色纹理层远离所述发泡层的一侧表面具有多个纹理结构，所述纹理结构为尖状凸起和/或凹陷结构。
  17. 如权利要求16所述的制备方法，其特征在于，所述成型颜色纹理层包括：
    提供离型纸，所述离型纸的表面具有预设纹理，所述预设纹理与所述纹理结构相对应；
    在所述离型纸具有所述预设纹理的表面涂覆有色树脂，经固化后转移至所述发泡层上，得到所述颜色纹理层。
  18. 如权利要求16所述的制备方法，其特征在于，所述成型颜色纹理层包括：
    在所述发泡层上成型颜色层；
    提供离型纸，所述离型纸的表面具有预设纹理，所述预设纹理与所述纹理结构相对应；
    在所述离型纸具有所述预设纹理的表面涂覆透明树脂，经固化后得到所述纹理层；
    将所述纹理层转移至所述颜色层上，得到所述颜色纹理层。
  19. 一种壳体组件，其特征在于，包括壳体和设置在壳体上的皮质膜片，所述皮质膜片包括发泡层和颜色纹理层，所述颜色纹理层远离所述发泡层的一侧表面具有多个纹理结构，所述纹理结构为尖状凸起和/或凹陷结构。
  20. 一种电子设备，其特征在于，包括壳体组件和主板，所述壳体组件包括壳体和设置在壳体上的皮质膜片，所述皮质膜片包括发泡层和颜色纹理层，所述颜色纹理层远离所述发泡层的一侧表面具有多个纹理结构，所述纹理结构为尖状凸起和/或凹陷结构。
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