Decorative part

Abstract

The utility model provides a decorating part. The decorating part comprises a base material, and a plurality of first micron bulge structures and a plurality of second micron bulge structures which are arranged on the surface of the base material, the heights of the first micron bulge structures and the heights of the second micron bulge structures are sequentially reduced, the second micron bulge structures and the multiple first micron bulge structures close to the second micron bulge structures form grooves, and the grooves can be attached to liquid drops; the first micron bulge structures and the second micron bulge structures are high and play a supporting role on the surface of the base material, and meanwhile, due to the fact that the heights of the first micron bulge structures and the second micron bulge structures are sequentially reduced, the thickness of the base material is increased. Grooves are formed in the connecting faces of the tops of the second micron protruding structures and the tops of the multiple first micron protruding structures close to the second micron protruding structures, the grooves can be attached to the surfaces of liquid drops, and therefore the contact angle between the liquid drops and the base material is increased, an air retention layer can be formed on the surfaces of the liquid drops and the base material, infiltration of the liquid drops to the base material is effectively blocked, and the service life of the base material is prolonged. Therefore, the hydrophobic and anti-pollution capabilities of the base material are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of interior decoration, specifically relates to a decoration part. BACKGROUND

[0002] At present in the industry, for the soft skin, mainly through adding antifouling coating on the surface of the substrate to improve the hydrophobic antifouling ability is a more common method. This method can improve the performance of the substrate to a certain extent, but the coating will wear and peel off with the passage of time, affecting its durability, leading to the decline of antifouling ability or even losing the antifouling effect.

[0003] At the same time, the coating as a chemical production process pollutes the environment, and the coating agent affects the skin feel after solidification on the surface of the soft skin. Moreover, these preparation methods use a large amount of chemical solvents, which are not friendly to the environment and high in cost. Moreover, the coating agent affects the skin feel after solidification on the surface of the soft skin, reducing the user experience. Therefore, how to overcome the above technical problems and defects becomes a problem that needs to be solved. UTILITY MODEL CONTENT

[0004] In view of the poor durability of the antifouling and hydrophobic effect of the existing interior decoration part and the pollution to the environment in the production process, the utility model provides a decoration part.

[0005] The technical scheme adopted by the utility model to solve the above technical problems is as follows:

[0006] The utility model provides a decoration part, including substrate and multiple first micron convex structures and multiple second micron convex structures which are arranged on the surface of the substrate, the height of the first micron convex structure, the height of the second micron convex structure are lowered in turn, multiple the first micron convex structure and multiple the second micron convex structure are arranged alternately, the top of the second micron convex structure and the connecting surface of the top of multiple the first micron convex structure which is close to the second micron convex structure form a groove, and the groove can be attached to the surface of the liquid drop.

[0007] Optionally, multiple the first micron convex structures are arrayed on the surface of the substrate, and multiple the second micron convex structures are arranged on at least one side of each row of the first micron convex structures along the transverse arrangement direction.

[0008] Optionally, multiple the second micron convex structures are arranged between two adjacent rows of the first micron convex structures along the transverse arrangement direction.

[0009] Optionally, the number of each row of the first micron convex structures is n, and the number of each row of the second micron convex structures is 2n-1 along the transverse arrangement direction.

[0010] Optionally, the first micron convex structure comprises a prism, a first end face of the prism is connected with the substrate, a second end face of the prism is arranged away from the substrate, the first end face and the second end face are both rhombic, a side length of the first end face is L1, and a value range of the L1 is 55 μm≤L1≤65 μm;

[0011] a side length of the second end face is L2, and a value range of the L2 is 45 μm≤L2≤55 μm;

[0012] the first end face comprises a first diagonal line, the first diagonal line is arranged along a transverse direction, and a length of the first diagonal line is L3; and a value range of the L3 is 55 μm≤L3≤65 μm;

[0013] a height of the prism is h1, and a value range of the h1 is 85 μm≤h1≤95 μm.

[0014] Optionally, along the transverse direction, a distance between two adjacent prisms is L4, and a value range of the L4 is 55 μm≤L4≤65 μm;

[0015] along a longitudinal direction, a distance between two adjacent prisms is L5, and a value range of the L5 is 72 μm≤L5≤88 μm.

[0016] Optionally, the first micron convex structure further comprises a prism, the prism comprises a third end face and a fourth end face, the third end face of the prism is connected with the second end face of the prism, the third end face and the fourth end face of the prism are both rhombic, a side length of the third end face or the fourth end face of the prism is L6, and a value range of the L6 is 35 μm≤L6≤45 μm;

[0017] a height of the prism is h2, and a value range of the h2 is 5 μm≤h2≤15 μm.

[0018] Optionally, the second micron convex structure is a circular cone, the circular cone comprises a cone end and a first circular end, the first circular end is connected with the substrate, a diameter of the first circular end is d1, and a value range of the d1 is 27 μm≤d1≤33 μm;

[0019] a height of the circular cone is h3, and a value range of the h3 is 75 μm≤h3≤85 μm.

[0020] Optionally, along the transverse direction, a distance between centers of two adjacent first circular ends is L7, and a value range of the L7 is 60 μm≤L7≤73 μm;

[0021] In the longitudinal direction, the distance between the center of the first circular end of the first spherical top cylinder and the first end face of the adjacent truncated cone is L8, and the value range of L8 is: 35 μm≤L8≤45 μm.

[0022] Optionally, a plurality of third micron convex structures are further included, the height of the third micron convex structure is less than the height of the second micron convex structure; and the plurality of third micron convex structures are arranged around the first micron convex structure and the second micron convex structure.

[0023] Optionally, the third micron convex structure comprises a spherical top cylinder, the spherical top cylinder comprises a spherical end and a second circular end, the second circular end is connected with the substrate, the diameter of the second circular end is d2, and the value range of d2 is: 10 μm≤d2≤17 μm.

[0024] The height of the first spherical top cylinder is h4, and the value range of h4 is: 11 μm≤h4≤17 μm.

[0025] Optionally, in the transverse direction, the distance between the centers of two adjacent second circular ends is L9, and the value range of L9 is: 30 μm≤L9≤40 μm.

[0026] In the longitudinal direction, the distance between the center of the second circular end and the center of the third circular end is L10, and the value range of L10 is: 30 μm≤L10≤40 μm.

[0027] According to the decorative part, the first micron convex structure and the second micron convex structure formed on the surface of the substrate, the height of the first micron convex structure and the second micron convex structure is high, which supports the surface of the substrate, and since the height of the first micron convex structure and the height of the second micron convex structure are gradually reduced, a height difference is formed between the first micron convex structure and the second micron convex structure, a groove is formed between the top of the second micron convex structure and the connecting surface of the top of the plurality of first micron convex structures adjacent to the second micron convex structure, the groove is similar to a hemisphere, the groove can be attached to the surface of the spherical liquid droplet, thereby increasing the contact angle of the liquid droplet and the substrate, an air retention layer can be formed between the stain liquid droplet and the surface of the substrate, the liquid droplet is effectively prevented from infiltrating the substrate, and the hydrophobic and stain-resistant ability of the substrate is improved. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings to be used in the description of the embodiments of the present application. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0029] Figure 1 is a structural schematic diagram of a decorative part provided by an embodiment of the present application;

[0030] Figure 2 is a front view schematic diagram of a decorative part provided by an embodiment of the present application;

[0031] Figure 3 is a side view schematic diagram of a decorative part provided by an embodiment of the present application;

[0032] Figure 4 is a first mark schematic diagram of a decorative part provided by an embodiment of the present application;

[0033] Figure 5 is a second mark schematic diagram of a decorative part provided by an embodiment of the present application;

[0034] Figure 6 is a schematic diagram of a decorative part in contact with a water droplet provided by an embodiment of the present application;

[0035] The reference signs in the drawings of the specification are as follows:

[0036] 1 - substrate; 2 - first micron protruding structure; 21 - prism; 211 - first end face; 212 - second end face; 22 - prism; 221 - third end face; 222 - fourth end face; 3 - second micron protruding structure; 31 - cone; 311 - cone end; 312 - first circular end; 4 - third micron protruding structure; 41 - spherical top end cylinder; 411 - spherical end; 412 - second circular end; 5 - groove; 6 - liquid droplet. DETAILED DESCRIPTION

[0037] In order to make the technical problems, technical schemes and beneficial effects solved by the present application more clearly understood, the following will further describe the present application in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application.

[0038] In the description of this utility model, it should be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0039] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0040] like Figures 1-3 As shown, in one embodiment, the present invention provides a decorative component, including a substrate 1 and a plurality of first micron protrusions 2 and a plurality of second micron protrusions 3 disposed on the surface of the substrate 1. The height of the first micron protrusions 2 and the height of the second micron protrusions 3 decrease sequentially. The plurality of first micron protrusions 2 and the plurality of second micron protrusions 3 are alternately disposed. The top of the second micron protrusion 3 and the connecting surface of the top of the plurality of first micron protrusions 2 adjacent to the second micron protrusion 3 form a groove 5. The groove 5 can fit the surface of the droplet 6.

[0041] Specifically, the substrate 1 of this application is a conventional automotive interior skin, including one or more of PU, PVC, and silicone.

[0042] Specifically, to simplify the following description, the first micrometer protrusion structure 2 and the second micrometer protrusion structure 3 will be collectively referred to as micrometer protrusion structures.

[0043] The first micrometer protrusion structure 2 and the second micrometer protrusion structure 3 of this application are formed by hot pressing and transferring onto the surface of the substrate 1 using a roller pressing mold. Both the first micrometer protrusion structure 2 and the second micrometer protrusion structure 3 protrude from the surface of the substrate 1, and the height of both the first micrometer protrusion structure 2 and the second micrometer protrusion structure 3 is less than 110 μm.

[0044] The first micron protruding structure 2 and the second micron protruding structure 3 of the application are formed on the surface of the base material 1, the height of the first micron protruding structure 2 and the second micron protruding structure 3 of the application is high, and the first micron protruding structure 2 and the second micron protruding structure 3 play a supporting role on the surface of the base material 1, and since the height of the first micron protruding structure 2 and the height of the second micron protruding structure 3 are sequentially reduced, a height difference is formed between the first micron protruding structure 2 and the second micron protruding structure 3, the top of the second micron protruding structure 3 and the connecting surface of the top of the plurality of first micron protruding structures 2 adjacent to the second micron protruding structure 3 form a groove 5, the groove 5 is similar to a hemispherical shape, the groove 5 can be attached to the surface of the spherical liquid droplet 6, thereby increasing the contact angle of the liquid droplet 6 and the base material 1, and an air retention layer can be formed on the surface of the base material 1 and the liquid droplet 6, thereby effectively blocking the infiltration of the liquid droplet 6 to the base material 1, and the hydrophobic and stain-resistant ability of the base material 1 is improved.

[0045] The micron protruding structure of the application is transferred to the surface of the base material 1 by a rolling mold, the micron protruding structure of the application effectively avoids the pollution of the production process of the traditional stain-resistant coating scheme to the environment, and after the surface of the base material 1 is solidified, the micron protruding structure has good wear resistance, and even after long-term friction, the stain-resistant performance can still be maintained to a certain extent, thereby effectively avoiding the problem that the stain-resistant ability of the traditional scheme is sharply reduced after the coating is damaged, and the properties of the base material 1 are not changed, and the original hand feeling of the base material 1 is retained.

[0046] The application provides a micron protruding structure which is arranged in the areas such as the interior decoration seat and the door trim of the automobile, and the stain-resistant ability of the base material 1 can be greatly improved without using the traditional stain-resistant coating. The scheme effectively avoids the inherent defects such as poor wear resistance of the traditional stain-resistant coating, pollution of the production process to the environment, and influence on the skin hand feeling, and improves the quality and user experience of the overall cabin interior.

[0047] As shown in Figures 1-3 In an embodiment, a plurality of first micron protruding structures 2 are arrayed on the surface of the base material 1, and a plurality of second micron protruding structures 3 are uniformly arranged on at least one side of each row of first micron protruding structures 2 along the transverse arrangement direction.

[0048] Specifically, since the height of the first micron protruding structure 2 and the height of the second micron protruding structure 3 are sequentially reduced, a height difference is formed between the first micron protruding structure 2 and the second micron protruding structure 3, an air retention layer can be formed on the surface of the base material 1 and the liquid droplet 6, thereby effectively blocking the infiltration of the liquid droplet 6 to the base material 1, and the hydrophobic and stain-resistant ability of the base material 1 is improved.

[0049] As shown in Figures 1-3 In an embodiment, a plurality of second micron protruding structures 3 are uniformly arranged between two adjacent rows of first micron protruding structures 2 along the transverse arrangement direction.

[0050] Specifically, the first micro-protrusion structure 2 and the second micro-protrusion structure 3 have a high height, which supports the surface of the substrate 1. In addition, the height of the first micro-protrusion structure 2 and the height of the second micro-protrusion structure 3 are gradually reduced, thereby forming a height difference between the first micro-protrusion structure 2 and the second micro-protrusion structure 3. The air stagnation layer can be formed between the liquid droplet 6 and the surface of the substrate 1, which effectively prevents the liquid droplet 6 from infiltrating the substrate 1, thereby improving the hydrophobic and anti-fouling ability of the substrate 1.

[0051] As shown in FIG. 1, in an embodiment, along the transverse arrangement direction, the number of the first micro-protrusion structure 2 in each row is n, and the number of the second micro-protrusion structure 3 in each row is 2n-1. Figures 1-2

[0052] Specifically, along the longitudinal direction, the second micro-protrusion structure 3 is arranged between every two adjacent first micro-protrusion structures 2 in each column, and the second micro-protrusion structure 3 is arranged between every two adjacent first micro-protrusion structures 2 in adjacent columns. In this way, the contact angle between the liquid droplet 6 and the first micro-protrusion structure 2 and the second micro-protrusion structure 3 is increased, which effectively prevents the liquid droplet 6 from infiltrating the surface of the substrate 1, thereby improving the hydrophobic and anti-fouling ability of the substrate 1.

[0053] As shown in FIG. 1, in an embodiment, the first micro-protrusion structure 2 includes a prism 21, the first end surface 211 of the prism 21 is connected with the substrate 1, and the second end surface 212 of the prism 21 is arranged away from the substrate 1. The first end surface 211 and the second end surface 212 are both rhombic, the side length of the first end surface 211 is L1, and the value range of L1 is 55 μm≤L1≤65 μm. Figures 4-5

[0054] The side length of the second end surface 212 is L2, and the value range of L2 is 45 μm≤L2≤55 μm.

[0055] The first end surface 211 includes a first diagonal line, the first diagonal line is arranged along the transverse direction, and the length of the first diagonal line is L3. The value range of L3 is 55 μm≤L3≤65 μm.

[0056] The height of the prism 21 is h1, and the value range of h1 is 85 μm≤h1≤95 μm.

[0057] Specifically, the value range of L1 is 55 μm, 56 μm, 57 μm, 58 μm, 59 μm, 60 μm, 61 μm, 62 μm, 63 μm, 64 μm, or 65 μm, or a range value formed by any two point values. In a preferred embodiment, the value range of L1 is 58 μm-62 μm.

[0058] ​​Specifically, the value range of L2 is any one value or a range value formed by any two point values in 44 μm, 46 μm, 47 μm, 48 μm, 49 μm, 50 μm, 51 μm, 52 μm, 53 μm, 54 μm or 55 μm; in a preferred embodiment, the value range of L2 is 48 μm-52 μm.

[0059] Specifically, the value range of L3 is any one value or a range value formed by any two point values in 55 μm, 56 μm, 57 μm, 58 μm, 59 μm, 60 μm, 61 μm, 62 μm, 63 μm, 64 μm or 65 μm; in a preferred embodiment, the value range of L3 is 58 μm-62 μm.

[0060] Specifically, the value range of h1 is any one value or a range value formed by any two point values in 88 μm, 86 μm, 87 μm, 88 μm, 89 μm, 90 μm, 91 μm, 92 μm, 93 μm, 94 μm or 95 μm; in a preferred embodiment, the value range of h1 is 88 μm-92 μm.

[0061] The present application forms the first micron convex structure 2 on the roll mold surface of the substrate 1 by gradient scanning with a laser of a specific energy density and wavelength, and adopts 30° and 60° cross scanning laser beam scanning when scanning, the filling pitch is 100 μm, and the scanning number is 100 times per line; the 30° scanning line and the 60° scanning line ensure the formation of the prism 21 feature, and the accumulation of the single-line scanning number is beneficial to effectively restore the micron-level first micron convex structure 2.

[0062] As shown in the drawings, Figure 4 In an embodiment, along the transverse direction, the distance between adjacent two prisms 21 is L4, and the value range of L4 is 55 μm≤L4≤65 μm.

[0063] Along the longitudinal direction, the distance between adjacent two prisms 21 is L5, and the value range of L5 is 72 μm≤L5≤88 μm.

[0064] Specifically, the value range of L4 is any one value or a range value formed by any two point values in 55 μm, 56 μm, 57 μm, 58 μm, 59 μm, 60 μm, 61 μm, 62 μm, 63 μm, 64 μm or 65 μm; in a preferred embodiment, the value range of L4 is 58 μm-62 μm.

[0065] Specifically, the value range of L5 is any one value or a range of any two values ​​from 72μm, 73μm, 74μm, 75μm, 76μm, 77μm, 78μm, 79μm, 80μm, 81μm, 82μm, 83μm, 84μm, 85μm, 86μm, 87μm or 88μm; in a preferred embodiment, the value range of L5 is 78μm-82μm.

[0066] like Figures 4-5 As shown, in one embodiment, the first micron protrusion structure 2 further includes a prism 22, which includes a third end face 221 and a fourth end face 222. The third end face 221 of the prism 22 is connected to the second end face 212 of the frustum 21. Both the third end face 221 and the fourth end face 222 of the prism 22 are rhomboids. The side length of the third end face 221 or the fourth end face 222 of the prism 22 is L6, and the value range of L6 is: 35μm≤L6≤45μm.

[0067] The height of prism 22 is h2, and the value of h2 is in the range of 5μm≤h2≤15μm.

[0068] Specifically, the value range of L6 is any one value or a range of any two values ​​among 35μm, 36μm, 37μm, 38μm, 39μm, 40μm, 41μm, 42μm, 43μm, 44μm or 45μm; in a preferred embodiment, the value range of L6 is 38μm-42μm.

[0069] Specifically, the value range of h2 is any one point value or any two point values ​​among 5μm, 6μm, 7μm, 8μm, 9μm, 10μm, 11μm, 12μm, 13μm, 14μm or 15μm; in a preferred embodiment, the value range of h2 is 8μm-12μm.

[0070] A prism 22 is set above the frustum 21 to increase roughness and increase the area of ​​the air retention layer, effectively blocking the wetting of the substrate 1 by the droplets 6, thereby improving the hydrophobic and antifouling ability of the substrate 1.

[0071] like Figures 4-5 As shown, in one embodiment, the second micron protrusion structure 3 is a cone 31, which includes a cone end 311 and a first circular end 312. The first circular end 312 is connected to the substrate 1, and the diameter of the first circular end 312 is d1. The value range of d1 is: 27μm≤d1≤33μm.

[0072] The height of cone 31 is h3, and the value of h3 is in the range of 75μm≤h3≤85μm.

[0073] Specifically, the value range of d1 is any one point value or any two point values ​​among 27μm, 28μm, 29μm, 30μm, 31μm, 32μm or 33μm; in a preferred embodiment, the value range of d1 is 28μm-32μm.

[0074] Specifically, the value range of h3 is any one value or a range of any two values ​​among 75μm, 76μm, 77μm, 78μm, 79μm, 80μm, 81μm, 82μm, 83μm, 84μm or 85μm; in a preferred embodiment, the value range of h3 is 78μm-82μm.

[0075] A prism 22 is set above the frustum 21 to increase roughness and increase the area of ​​the air retention layer, effectively blocking the wetting of the substrate 1 by the droplets 6, thereby improving the hydrophobic and antifouling ability of the substrate 1.

[0076] The cone 31 provides support and forms a certain height difference with the first micron protrusion 2, creating an air retention layer on the stain droplets 6 and the substrate surface, enhancing the ability to resist downward liquid wetting.

[0077] like Figure 4 As shown, in one embodiment, the distance between the centers of two adjacent first circular end 312 along the lateral direction is L7, and the value range of L7 is: 60μm≤L7≤73μm;

[0078] Along the longitudinal direction, the distance between the center of the first circular end 312 and the first end face 211 of the adjacent frustum 21 is L8, and the value of L8 is in the range of 35μm≤L8≤45μm.

[0079] Specifically, the value range of L7 is any one value or a range of any two values ​​among 60μm, 61μm, 62μm, 63μm, 64μm, 65μm, 66μm, 67μm, 68μm, 69μm, 70μm, 71μm, 72μm or 73μm; in a preferred embodiment, the value range of L7 is 63μm-69μm.

[0080] Specifically, the value range of L8 is any one value or a range of any two values ​​among 35μm, 36μm, 33μm, 38μm, 39μm, 40μm, 41μm, 42μm, 43μm, 44μm or 45μm; in a preferred embodiment, the value range of L8 is 38μm-42μm.

[0081] like Figures 1-3As shown, in an embodiment, a plurality of third micron convex structures 4 are also included, the height of the third micron convex structures 4 is less than the height of the second micron convex structures 3; the plurality of third micron convex structures 4 are arrayed around the first micron convex structures 2 and the second micron convex structures 3.

[0082] Specifically, the first micron convex structures 2, the second micron convex structures 3 and the third micron convex structures 4 formed on the surface of the substrate 1, the height of the first micron convex structures 2, the height of the second micron convex structures 3 and the height of the third micron convex structures 4 are sequentially reduced, the second micron convex structures 3 and the plurality of first micron convex structures 2 near the second micron convex structures 3 form grooves 5; the top of the plurality of third micron convex structures 4, and the connecting surface of the top of the plurality of second micron convex structures 3 and the top of the plurality of first micron convex structures 2 around the plurality of third micron convex structures 4 also form grooves 5, the grooves 5 are similar to hemispherical shape, the grooves 5 can fit the surface of the spherical liquid droplets 6, thereby increasing the contact angle of the liquid droplets 6 and the substrate 1, and an air retention layer can be formed on the surface of the substrate 1 and the liquid droplets 6, effectively blocking the liquid droplets 6 from infiltrating the substrate 1, thereby improving the hydrophobic and stain-resistant ability of the substrate 1.

[0083] The preparation method of the decorative part of the present application is as follows: a laser with specific energy density and wavelength is used to form the first micron convex structures 2, the second micron convex structures 3 and the third micron convex structures 4 on the surface of the roller mold of the substrate 1 by gradient scanning; then the roller mold is transferred to the surface of the substrate 1 by hot pressing, and the first micron convex structures 2, the second micron convex structures 3 and the third micron convex structures 4 are arrayed on the surface of the substrate 1; the preparation method of the present application has the advantages of low cost, high efficiency and controllable precision; meanwhile, the first micron convex structures 2, the second micron convex structures 3 and the third micron convex structures 4 formed on the surface of the substrate 1 increase the contact angle of the liquid droplets 6 and the substrate 1, and the height of the first micron convex structures 2 and the second micron convex structures 3 of the present application is relatively high, which plays a supporting role on the surface of the substrate 1; at the same time, since the height of the first micron convex structures 2, the height of the second micron convex structures 3 and the height of the third micron convex structures 4 are sequentially reduced, a height difference is formed between the first micron convex structures 2, the second micron convex structures 3 and the third micron convex structures 4, an air retention layer can be formed on the surface of the substrate 1 and the liquid droplets 6, effectively blocking the liquid droplets 6 from infiltrating the substrate 1, thereby improving the hydrophobic and stain-resistant ability of the substrate 1.

[0084] Further, the power of the laser for gradient scanning on the surface of the roller mold of the substrate 1 is 5W, the frequency is 1200kHz, the pulse width is <12ps, and the scanning speed is 2000mm / s; the pulse time of the laser in the present scheme is about 5x10 -15In a very short time, a large pulse energy is generated, which directly separates and vaporizes the surface layer of the substrate 1, avoiding the formation of molten pools on the metal surface during traditional laser processing.

[0085] like Figures 4-5 As shown, in one embodiment, the third micrometer protrusion structure 4 includes a spherical top cylinder 41, which includes a spherical end 411 and a second circular end 412. The second circular end 412 is connected to the substrate 1, and the diameter of the second circular end 412 is d2. The value range of d2 is: 10μm≤d2≤17μm.

[0086] The height of the first spherical top cylinder 41 is h4, and the value of h4 is in the range of 11μm≤h4≤17μm.

[0087] Specifically, the value range of d2 is any one point value or any two point values ​​among 10μm, 11μm, 12μm, 13μm, 14μm, 15μm, 16μm or 17μm; in a preferred embodiment, the value range of d2 is 13μm-15μm.

[0088] Specifically, the value range of h4 is any one point value or any two point values ​​among 11μm, 12μm, 13μm, 14μm, 15μm, 16μm or 17μm; in a preferred embodiment, the value range of h4 is 13μm-15μm.

[0089] The spherical end 411 of the first spherical top cylinder 41 can prevent the intrusion of the droplet 6 in a smaller size, and the droplet 6 can roll off the surface of the substrate 1 more easily.

[0090] like Figure 4 As shown, in one embodiment, the distance between the centers of two adjacent second circular end 412 along the lateral direction is L9, and the value range of L9 is: 30μm≤L9≤40μm;

[0091] Along the longitudinal direction, the distance between the center of the second circular end 412 and the center of the third circular end is L10, and the value range of L10 is: 30μm≤L10≤40μm.

[0092] Specifically, the value range of L9 is any one value or any two values ​​from 30μm, 31μm, 32μm, 33μm, 34μm, 35μm, 36μm, 37μm, 38μm, 39μm or 40μm; in a preferred embodiment, the value range of L9 is 33μm-37μm.

[0093] Specifically, the value range of L10 is any one value or a range value consisting of any two point values selected from the group consisting of 30 μm, 31 μm, 32 μm, 33 μm, 34 μm, 35 μm, 36 μm, 37 μm, 38 μm, 39 μm or 40 μm; in a preferred embodiment, the value range of L10 is 33 μm-37 μm.

[0094] As shown in Figure 6 The present application forms the first micro convex structure 2, the second micro convex structure 3 and the third micro convex structure 4 on the surface of the substrate 1 by scanning engraving, the contact angle of the surface of the substrate 1 is improved from 76° to 135°, the wetting of the droplet 6 to the substrate 1 is effectively blocked, and the hydrophobic and anti-fouling ability of the substrate 1 is improved.

[0095] The above only describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A trim piece, characterized by: The substrate and a plurality of first micron convex structures and a plurality of second micron convex structures arranged on the surface of the substrate; the height of the first micron convex structure, the height of the second micron convex structure is reduced in turn, a plurality of the first micron convex structure and a plurality of the second micron convex structure are arranged alternately, the top of the second micron convex structure and the connecting surface of the top of a plurality of the first micron convex structure near the second micron convex structure form a groove, the groove can be fitted with the surface of the droplet.

2. The trim piece of claim 1, wherein: A plurality of the first micron convex structure array is distributed on the substrate surface, and a plurality of the second micron convex structure is arranged on at least one side of each row of the first micron convex structure along the transverse arrangement direction.

3. The trim piece of claim 2, wherein: Along the transverse arrangement direction, a plurality of the second micron convex structure is arranged between the adjacent two rows of the first micron convex structure.

4. The trim piece of claim 3, wherein: Along the transverse arrangement direction, the number of each row of the first micron convex structure is n, and the number of each row of the second micron convex structure is 2n-1.

5. The trim piece of any one of claims 1-4, wherein: The first micron convex structure includes a prism, the first end surface of the prism is connected with the substrate, the second end surface of the prism is arranged away from the substrate, the first end surface and the second end surface are rhombus, the side length of the first end surface is L1, the value range of L1 is: 55μm≤L1≤65μm; The side length of the second end surface is L2, the value range of L2 is: 45μm≤L2≤55μm; The first end surface includes a first diagonal line, the first diagonal line is arranged along the transverse direction, the length of the first diagonal line is L3; the value range of L3 is: 55μm≤L3≤65μm; The height of the prism is h1, the value range of h1 is: 85μm≤h1≤95μm.

6. The trim piece of claim 5, wherein: Along the transverse direction, the distance between the adjacent two prisms is L4, the value range of L4 is: 55μm≤L4≤65μm; Along the longitudinal direction, the distance between the adjacent two prisms is L5, the value range of L5 is: 72μm≤L5≤88μm.

7. The trim piece of claim 5, wherein: The first micron convex structure further includes a prism, the prism includes a third end surface and a fourth end surface, the third end surface of the prism is connected with the second end surface of the prism, the third end surface and the fourth end surface of the prism are rhombus, the side length of the third end surface or the fourth end surface of the prism is L6, the value range of L6 is: 35μm≤L6≤45μm; The height of the prism is h2, the value range of h2 is: 5μm≤h2≤15μm.

8. The trim piece of claim 5, wherein: The second micron convex structure is a circular cone, the circular cone includes a cone end and a first circular end, the first circular end is connected with the substrate, the diameter of the first circular end is d1, the value range of d1 is: 27μm≤d1≤33μm; The height of the circular cone is h3, the value range of h3 is: 75μm≤h3≤85μm.

9. The trim piece of claim 8, wherein: Along the transverse direction, the distance between the centers of the adjacent two first circular ends is L7, the value range of L7 is: 60μm≤L7≤73μm; Along the longitudinal direction, the distance between the center of the first circular end of the first spherical top cylinder and the first end face of the adjacent truncated cone is L8, and the L8 is in the range of 35 μm≤L8≤45 μm.

10. The trim piece of claim 2, wherein: Further comprising a plurality of third micron convex structures, the height of the third micron convex structure is less than the height of the second micron convex structure; a plurality of third micron convex structures are arrayed around the first micron convex structure and the second micron convex structure.

11. The trim piece of claim 10, wherein: The third micron convex structure comprises a spherical top cylinder, the spherical top cylinder comprises a spherical end and a second circular end, the second circular end is connected with the substrate, the diameter of the second circular end is d2, and the d2 is in the range of 10 μm≤d2≤17 μm. The height of the first spherical top cylinder is h4, and the h4 is in the range of 11 μm≤h4≤17 μm.

12. The trim piece of claim 11, wherein: Along the transverse direction, the distance between the centers of two adjacent second circular ends is L9, and the L9 is in the range of 30 μm≤L9≤40 μm. Along the longitudinal direction, the distance between the center of the second circular end and the center of the third circular end is L10, and the L10 is in the range of 30 μm≤L10≤40 μm.

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