Plastic part with flat hidden dynamic moire pattern

Abstract

The utility model discloses a kind of plastic parts with flat hidden dynamic dazzle texture, it includes the plastic part body and flat hidden dynamic dazzle texture by injection molding process integrated molding, the flat hidden dynamic dazzle texture has predetermined profile shape and is located the surface of the plastic part body, the flat hidden dynamic dazzle texture includes first texture pattern layer and second texture pattern layer in predetermined profile shape range and each other overlap, dazzling color texture is provided in the first texture pattern layer, non-dazzling color linear texture is provided in the second texture pattern layer, and the protruding height of non-dazzling color linear texture of the second texture pattern layer is greater than the dazzling color texture protruding height of the first texture pattern layer.The utility model scheme has flat hidden dynamic dazzle texture that can present dazzling color effect integrated molding on plastic part surface, the flat hidden dynamic dazzle texture is not easy to fall off from plastic part, and it has good wear resistance to increase service life.

Description

Technical Field

[0001] This utility model relates to the field of plastic product technology, and in particular to a plastic part with a flat, hidden, dynamic, and dazzling texture. Background Technology

[0002] As people's demands for quality of life continue to rise, their requirements for the appearance of various products and their packaging are also increasing. For some plastic products, people expect patterns on the outer surface that can display vibrant colors under different angles of light, thereby enhancing the product's perceived quality.

[0003] Chinese patent CN114102978B discloses a colorful shell and its preparation method. The method involves first placing a colorful film into the cavity of an injection mold, then injecting plastic into the cavity to form the shell and the colorful film together. However, in this design, the shell and the colorful structure (colorful film) are essentially two independent structural parts. During product use, the colorful film is prone to detaching from the shell, and the preparation process is relatively cumbersome.

[0004] In other existing solutions, iridescent textures can be directly applied to the surface of plastic products after molding via embossing or engraving. The iridescent texture is an integral structure with the product body, overcoming the problem of easy detachment of the iridescent structure caused by lamination methods. However, the iridescent textures formed by embossing or engraving are micro-nano-sized structures, directly exposed on the product surface, making them susceptible to scratches and damage during use. Utility Model Content

[0005] To address the problems existing in the prior art, this utility model provides a plastic part with a flat, hidden, dynamic, and dazzling texture, solving the problem of how to improve the scratch resistance of the dazzling microstructure on the surface of the plastic part.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A plastic part with a flat, hidden, dynamic, and dazzling texture includes a plastic part body integrally formed by injection molding and a flat, hidden, dynamic, and dazzling texture. The flat, hidden, dynamic, and dazzling texture has a predetermined outline shape and is located on the surface of the plastic part body. The flat, hidden, dynamic, and dazzling texture includes a first texture pattern layer and a second texture pattern layer that overlap each other within the range of the predetermined outline shape. The first texture pattern layer is provided with a dazzling texture, and the second texture pattern layer is provided with a non-dazzling linear texture. The iridescent texture includes a first raised grid of lines arranged in a regular pattern within the range of the predetermined contour shape, and the non-iridescent linear texture includes a second raised grid of lines arranged in a regular pattern within the range of the predetermined contour shape. The height of the first raised grid is H1, and the height of the second raised grid is H2, where H2 > H1.

[0007] Preferably, within the range of the predetermined contour shape, the first texture pattern layer is divided into M sub-regions, each sub-region forming the iridescent texture; based on the difference in the filling angle of the iridescent texture in the sub-region, the M sub-regions can present N different colors, the iridescent textures in all sub-regions corresponding to the same color have the same filling angle, and the iridescent textures in sub-regions corresponding to different colors have different filling angles. Wherein, M corresponds to the nth color. n The sub-regions are discretely distributed within the range of the predetermined contour shape; Among them, M, N and M n They are positive integers, n = 1, 2, ..., N. .

[0008] Preferably, the boundary contour of the sub-region is a polygon, a circle, an ellipse, or any irregular shape.

[0009] Preferably, a blank area without iridescent texture filling is provided between any two adjacent sub-regions.

[0010] Preferably, the width of the blank area is 0.15mm to 0.2mm.

[0011] Preferably, the value of N is 6 to 15.

[0012] Preferably, the depth H1 of the first raised wire grid is 1μm~1.5μm, the line width D1 is 0.01mm~0.02mm, and the line spacing L1 is 0.03mm~0.1mm.

[0013] Preferably, the height H2 of the second raised wire grid is 0.01mm~0.03mm, the line width D2 is 0.01mm~0.03mm, and the line spacing L2 is more than 5 times the line width D2.

[0014] Preferably, the line spacing L2 is 5 to 12 times the line width D2.

[0015] Preferably, the second raised grid is one or a combination of two or more of the following: straight lines, wavy lines, circular lines, and any irregular lines.

[0016] The plastic part with a planar, hidden, dynamic, and iridescent texture provided in this embodiment includes a plastic part body integrally formed by injection molding and a planar, hidden, dynamic, and iridescent texture. The planar, hidden, dynamic, and iridescent texture includes an overlapping first texture pattern layer and a second texture pattern layer. The first texture pattern layer has an iridescent texture, and the second texture pattern layer has a non-iridescent linear texture. The protrusion height of the non-iridescent linear texture in the second texture pattern layer is greater than the protrusion height of the iridescent texture in the first texture pattern layer; that is, the iridescent texture is contained beneath the non-iridescent linear texture. Therefore, on the one hand, the iridescent microstructure (planar, hidden, dynamic, and iridescent texture) used to present the iridescent effect is integrally formed with the plastic part body by injection molding, making it less likely for the iridescent microstructure to detach from the plastic part; on the other hand, the iridescent texture within the iridescent microstructure, which presents the iridescent effect, is contained beneath the non-iridescent linear texture, which effectively protects the iridescent texture from scratches and damage, thereby improving the wear resistance and service life of the iridescent microstructure. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the plastic part in the embodiment of this utility model; Figure 2 This is a schematic diagram of the structure of the flat, hidden, dynamic texture in this embodiment of the utility model; Figure 3 Is it like this? Figure 2 An enlarged schematic diagram of part P1 in the diagram; Figure 4 This is a schematic diagram of the structure of the first texture pattern layer in an embodiment of this utility model; Figure 5 This is a structural illustration of the color presentation of the first texture pattern layer in an embodiment of this utility model; Figure 6 Is it like this? Figure 4 An enlarged schematic diagram of part P2 in the diagram; Figure 7 This is a schematic diagram of the structure of the second texture pattern layer in an embodiment of this utility model; Figure 8 Is it like this? Figure 7 An enlarged schematic diagram of part P3 in the image; Figure 9 This is a cross-sectional view of the colorful texture on the plastic part body in the embodiment of this utility model; Figure 10 This is a cross-sectional view of the non-colorful linear texture on the plastic part body in an embodiment of this utility model; Figure 11 and Figure 12 The illustrations show the vibrant colors of plastic parts in some specific examples. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Examples of these preferred embodiments are illustrated in the drawings. The embodiments of this utility model shown in and described with reference to the drawings are merely exemplary, and this utility model is not limited to these embodiments.

[0019] It should be noted that the same or similar reference numerals in the accompanying drawings of the embodiments of this utility model correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they 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. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0020] It should also be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and / or processing steps closely related to the solution according to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0021] This utility model embodiment first provides a plastic part with a flat, hidden, dynamic texture, such as... Figure 1 As shown, the plastic part includes a plastic part body 2 and a planar dynamic texture 1. The planar dynamic texture 1 has a predetermined outline shape and is located on the surface of the plastic part body 2. The planar dynamic texture 1 and the plastic part body 2 are integrally formed by injection molding, and both are made of the same material. Specifically, a microstructure pattern complementary to the planar dynamic texture 1 is provided in the molding die of the plastic part body 2. When the plastic part body 2 is obtained by injection molding using this molding die, the planar dynamic texture 1 is integrally connected to the surface of the plastic part body 2 by forming the microstructure pattern.

[0022] It should be noted that, Figure 1 The image only exemplifies that the predetermined outline shape of the flat, hidden, dynamic texture 1 is rectangular. In actual implementation, the predetermined outline shape can be set according to actual needs, such as text, aesthetically pleasing graphics, or the product logo of the plastic part, etc.

[0023] See Figures 2 to 10The flat, hidden, dynamic texture 1 includes a first texture pattern layer 11 and a second texture pattern layer 12 that overlap within the predetermined contour shape. The first texture pattern layer 11 contains a vibrant texture 111, and the second texture pattern layer 12 contains a non-vibrant linear texture 121. The vibrant texture 111 includes a regularly arranged first raised wire grid 112 within the predetermined contour shape, and the non-vibrant linear texture 121 includes a regularly arranged second raised wire grid 122 within the predetermined contour shape. The height of the first raised wire grid 112 is H1, and the height of the second raised wire grid 122 is H2, where H2 > H1. That is, on the surface of the plastic body 2, the height of the non-vibrant linear texture 121 is greater than the height of the vibrant texture 111, and the vibrant texture 111 is contained below the non-vibrant linear texture 121.

[0024] As described above, in the plastic part, on the one hand, the iridescent microstructure (flat and hidden dynamic iridescent texture 1) used to present the iridescent effect is integrally molded with the plastic part body 2, and the iridescent microstructure is not easy to fall off the plastic part; on the other hand, the iridescent texture 111 that can present the iridescent effect in the iridescent microstructure is housed below the non-iridescent linear texture 121, and the non-iridescent linear texture 121 can effectively protect the iridescent texture 111 from being scratched and damaged, thereby improving the wear resistance and service life of the iridescent microstructure.

[0025] Furthermore, the iridescent microstructure obtained by molding on the surface of the plastic part, since the iridescent texture 111 capable of presenting an iridescent effect is housed beneath the non-iridescent linear texture 121, the iridescent texture 111 can present different iridescent effects based on different viewing angles. Moreover, at certain specific viewing angles, the iridescent effect cannot be presented due to the obstruction of the non-iridescent linear texture 121, i.e., the iridescent effect is hidden. Therefore, in this application, this iridescent microstructure is defined as a planar hidden dynamic iridescent texture.

[0026] For specific details, please refer to the following: Figures 4 to 6 Within the predetermined contour shape, the first texture pattern layer 11 is divided into M sub-regions 11a, each sub-region 11a forming the iridescent texture 111. Based on the difference in the fill angle of the iridescent texture 111 in the sub-regions 11a, the M sub-regions 11a can present N different colors. The fill angle of the iridescent texture 111 in all sub-regions 11a corresponding to the same color is the same, while the fill angle of the iridescent texture 111 in sub-regions 11a corresponding to different colors is different. Wherein, the M sub-regions corresponding to the nth color... n The sub-regions 11a are discretely distributed within the predetermined contour shape. Wherein, M, N, and M... n They are positive integers, n = 1, 2, ..., N. .

[0027] It should be noted that, Figure 5 Is with Figure 4 The same structural diagram, Figure 6 yes Figure 4 An enlarged schematic diagram of part A. This is to enable those skilled in the art to better understand the solution of this application. Figure 5 and Figure 6 Each sub-region 11a in the image has a fill color set for the color to be displayed in that sub-region 11a.

[0028] As a specific example, such as Figure 5 As shown, the M sub-regions 11a in this embodiment can display 6 (i.e., N=6) different colors, including yellow, purple, blue, gray, orange, and red. Each color includes multiple sub-regions 11a discretely distributed within the range of the predetermined contour shape. The iridescent textures 111 in all sub-regions 11a corresponding to the same color have the same fill angle, while the iridescent textures 111 in sub-regions 11a corresponding to different colors have different fill angles. For example, the iridescent textures 111 in all sub-regions 11a corresponding to purple have the same fill angle, while the iridescent textures 111 in the sub-regions 11a corresponding to purple and blue have different fill angles.

[0029] It should be noted that the filling angle refers to the tilt angle of the iridescent texture 111, which is a commonly used term in iridescent laser engraving technology. It is usually defined with the positive X-axis as 0° and the positive Y-axis as 90°.

[0030] It should be noted that the M sub-regions 11a can display a variety of colors (the value of N), and the specific number M of sub-regions 11a corresponding to the nth color. n The location and distribution of N can be set according to actual needs. In a preferred embodiment, the value of N is preferably in the range of 6 to 15. The boundary contour of the sub-region 11a can be polygonal, circular, elliptical, or any irregular shape. Each sub-region 11a can use the same or different boundary contours. For example, some sub-regions 11a may have polygonal boundary contours, while others may have circular ones. Even sub-regions 11a corresponding to the same color can use different boundary contours. In this embodiment, the boundary contour of the sub-region 11a is quadrilateral. Even if all sub-regions use polygonal boundary contours, the specific contour shapes can be different, such as... Figure 5 Although they are all quadrilateral outlines, the size, angle of the hypotenuse, and other characteristics of each quadrilateral outline can be different.

[0031] As a preferred embodiment, a blank area 113 without iridescent texture filling is provided between any two adjacent sub-regions 11a. By providing the blank area 113, the first texture pattern layer 11 can present a better iridescent effect. Further, the width of the blank area 113 is preferably 0.15mm to 0.2mm.

[0032] Further, see Figure 9 The height H1 of the first raised wire grid 112 is preferably set to 1μm~1.5μm, the line width D1 is preferably 0.01mm~0.02mm, and the line spacing L1 is preferably 0.03mm~0.1mm.

[0033] For specific details, please refer to the following: Figure 7 and 8 and combined Figure 2 and 3 Within the range of the predetermined contour shape, the non-colorful linear texture 121 in the second texture pattern layer 12 and the colorful texture 111 in the first texture pattern layer 11 overlap each other, that is, the second raised line grid 122 and the first raised line grid 112 have intersecting parts, and the height H2 of the second raised line grid 122 is greater than the height H1 of the first raised line grid 112.

[0034] As a preferred option, see Figure 10 The height H2 of the second raised wire grid is preferably 0.01mm to 0.03mm, the line width D2 is preferably 0.01mm to 0.03mm, and the line spacing L2 is preferably more than 5 times the line width D2.

[0035] In this embodiment, the height H2 of the second raised wire grid is several times greater than the height H1 of the first raised wire grid 112. That is, on the surface of the plastic part, the non-colorful linear texture 121 is several times higher than the colorful texture 111, which can better protect the colorful texture 111 and improve the scratch resistance of the colorful microstructure. Furthermore, since the non-colorful linear texture 121 has a portion that obscures the colorful texture 111, the spacing between the lines of the non-colorful linear texture 121 needs to be increased, that is, the spacing between the lines L2 needs to be increased so that the color-changing effect can be presented. Therefore, in a preferred embodiment, the spacing between the lines L2 is selected as 5 to 12 times the line width D2. If the spacing between the lines L2 is too small, the color-changing effect may not be presented well; if the spacing between the lines L2 is too large, the color-changing microstructure may not be effectively protected and may be easily scratched and damaged.

[0036] The second raised wire grid 122 can be one or a combination of two or more of the following: straight line, wavy line, circular line, and any irregular line, preferably straight line.

[0037] As a preferred example, in this embodiment, the non-colorful linear texture 121 of the second texture pattern layer 12 has the following characteristics: Figure 7 The layout structure is shown. Specifically, as mentioned above, the predetermined outline shape of the planar hidden dynamic texture 1 in this embodiment is rectangular, therefore the outline shape of the second texture pattern layer 12 is also rectangular, as shown. Figure 7 The rectangle ABCD has a non-colorful linear texture 121 with multiple columns of textures arranged sequentially along the diagonal AC. Each column of texture extends along the direction of the diagonal BD. Odd-numbered columns have textures parallel to side AB, and even-numbered columns have textures parallel to side AD. In other embodiments, the even-numbered columns may be set to be the same as the odd-numbered columns, i.e., all columns contain textures parallel to side AB; or, the odd-numbered columns may be set to be the same as the even-numbered columns, i.e., all columns contain textures parallel to side AD.

[0038] The plastic parts can be made of traditional plastic materials, such as PE, PP, PC, PVC, PS, ABS, TPU, PET nylon, etc., or rubber materials, such as natural rubber, EPDM rubber, nitrile rubber, etc., or silicone rubber or resin materials.

[0039] Figure 11 and Figure 12 Plastic parts in some specific examples are shown. Because the solution of this application is characterized by its ability to present vibrant colors, in order to enable those skilled in the art to better understand the solution of this invention, Figure 11 and Figure 12 It retains its vibrant colors. Figure 11 -(a) and Figure 12 - (a) is an illustration of the corresponding plastic part exhibiting a dazzling color effect during rotation. Figure 11 -(b) and Figure 12 - (b) is an illustration of the corresponding plastic parts with hidden iridescent effects from certain viewing angles.

[0040] As described above, the plastic part and its corresponding planar hidden dynamic texture in this application are prepared by injection molding, that is, the molding die used for injection molding the plastic part is provided with a microstructure pattern complementary to the planar hidden dynamic texture 1. This molding die can be prepared by the following method: Step S1: Provide a molding die body with a mold cavity, and prepare a polished mirror area on the surface of the mold cavity through a polishing process.

[0041] The mold body can be any existing mold used for injection molding plastic parts, which typically includes an upper mold and a lower mold. The specific shape of the mold cavity corresponds to the plastic part to be produced.

[0042] The specific location and size of the polished mirror area in the mold cavity can be set according to actual needs, and the polishing mirror grade of the polished mirror area is preferably A1 grade or above.

[0043] Step S2: Using a dazzling laser device, an engraving area is set based on the predetermined contour shape of the flat, hidden, dynamic, and dazzling texture. A texture layer complementary to the first texture pattern layer is prepared in the polished mirror area by laser engraving process.

[0044] Specifically, firstly, a texture layer with a complementary structure to the first texture pattern layer 11 is designed, and the structural parameters of the texture layer are input into the color laser device. Then, the color laser device engraves a texture layer complementary to the first texture pattern layer 11 in the polished mirror area according to the corresponding parameters. The first raised grid 112 in the first texture pattern layer 11 corresponds to a linear groove in the mold cavity.

[0045] The iridescent laser device can be either a picosecond iridescent laser device or a femtosecond iridescent laser device, and the iridescent texture it engraves can present an iridescent effect based on the external ambient light.

[0046] Step S3: Using a non-glare laser device, set the engraving area based on the predetermined contour shape of the flat, hidden, dynamic, and glare texture, and prepare a texture layer complementary to the second texture pattern layer in the polished mirror area through laser engraving process to obtain the molding mold.

[0047] Specifically, firstly, a texture layer with a complementary structure to the second texture pattern layer 12 is designed, and the structural parameters of the texture layer are input into the non-glare laser device. Then, the non-glare laser device engraves a texture layer complementary to the second texture pattern layer 12 in the polished mirror area according to the corresponding parameters. The second raised grid 122 in the second texture pattern layer 12 corresponds to a linear groove in the mold cavity.

[0048] The non-color laser device can be either a nanosecond laser device or a femtosecond laser device. The non-color line texture 121 formed by its engraving does not have a color effect. It is preferred to use a high-precision femtosecond laser device.

[0049] The above description is only a specific embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A plastic part with a flat, subtle, dynamic texture, characterized in that, The invention includes a plastic part body integrally formed by injection molding and a flat, hidden, dynamic, and dazzling texture. The flat, hidden, dynamic, and dazzling texture has a predetermined outline shape and is located on the surface of the plastic part body. The flat, hidden, dynamic, and dazzling texture includes a first texture pattern layer and a second texture pattern layer that overlap each other within the range of the predetermined outline shape. The first texture pattern layer is provided with a dazzling texture, and the second texture pattern layer is provided with a non-dazzling linear texture. The iridescent texture includes a first raised grid of lines arranged in a regular pattern within the range of the predetermined contour shape, and the non-iridescent linear texture includes a second raised grid of lines arranged in a regular pattern within the range of the predetermined contour shape. The height of the first raised grid is H1, and the height of the second raised grid is H2, where H2 > H1.

2. The plastic part according to claim 1, characterized in that, Within the range of the predetermined contour shape, the first texture pattern layer is divided into M sub-regions, each of which forms the iridescent texture; based on the difference in the filling angle of the iridescent texture in the sub-region, the M sub-regions can present N different colors, the iridescent textures in all sub-regions corresponding to the same color have the same filling angle, and the iridescent textures in sub-regions corresponding to different colors have different filling angles. Wherein, M corresponds to the nth color. n The sub-regions are discretely distributed within the range of the predetermined contour shape; Among them, M, N and M n They are positive integers, n = 1, 2, ..., N. .

3. The plastic part according to claim 2, characterized in that, The boundary outline of the sub-region is polygonal, circular, or elliptical.

4. The plastic part according to claim 2, characterized in that, A blank area without colorful texture filling is set between any two adjacent sub-regions.

5. The plastic part according to claim 4, characterized in that, The width of the blank area is 0.15mm to 0.2mm.

6. The plastic part according to claim 2, characterized in that, The value of N is between 6 and 15.

7. The plastic part according to claim 2, characterized in that, The depth H1 of the first raised wire grid is 1μm~1.5μm, the line width D1 is 0.01mm~0.02mm, and the line spacing L1 is 0.03mm~0.1mm.

8. The plastic part according to any one of claims 1-7, characterized in that, The height H2 of the second raised wire grid is 0.01mm~0.03mm, the line width D2 is 0.01mm~0.03mm, and the line spacing L2 is more than 5 times the line width D2.

9. The plastic part according to claim 8, characterized in that, The line spacing L2 is 5 to 12 times the line width D2.

10. The plastic part according to claim 8, characterized in that, The second raised grid is one or a combination of two or more of the following: straight lines, wavy lines, and circular lines.

Images