Plastic part with different colors
By designing the structure and material combination of different colored plastic parts and using hot pressing to create different color effects, the pollution and cost problems in the production of plastic parts for high-end automobiles and building decorations have been solved, achieving multi-angle color effects and low-cost production.
Patent Information
- Application Number
- CN202423316356.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Existing technologies suffer from pollution and high costs when manufacturing high-quality, colorful plastic parts for applications such as high-end automobiles, and are also costly when manufacturing parts for applications with general material performance requirements, such as architectural decoration.
The component is a discolored plastic part consisting of two thin plastic sheets and a plastic sheet in between. The plastic sheet has a pearlescent powder layer with through holes. The discolored effect is formed by hot pressing. Stable bonding is achieved by utilizing the different melting point characteristics of polypropylene and copolymer polypropylene.
It achieves different color effects under different viewing angles, and the preparation process is simple and low-cost, making it suitable for scenarios with general material performance requirements, such as building decoration.
Smart Images
Figure CN223618399U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a plastic part, and more particularly to a plastic part with different colors. Background Technology
[0002] Currently, for high-quality applications, such as the use of colorful plastic parts in luxury automobiles, the main methods for production are spraying or extrusion. Spraying is polluting and is gradually being phased out, while extrusion is complex. For applications with less stringent material performance requirements, such as architectural decoration, existing methods are costly. Therefore, there is a need to develop a new type of plastic product that can display different color effects from different viewing angles for application in the construction field. Summary of the Invention
[0003] The purpose of this invention is to provide a plastic part with different colors that can present different color effects under different viewing angles. The manufacturing process is simple and the cost is low.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0005] A non-colored plastic part includes two thin plastic sheets and a plastic sheet located between the sheets; the plastic sheet has through holes; and a pearlescent powder layer is disposed within the through holes. The pearlescent powder layer is used for color rendering, and can present different color effects under different viewing angles.
[0006] In this invention, the specific materials used are conventional technologies, as long as they do not affect the color development of the pearlescent powder. The upper and lower plastic sheets can be made of polypropylene, which has a slightly higher melting point to maintain structural stability; the middle plastic sheet can be made of copolymer polypropylene, which has a slightly lower melting point to facilitate melting and bonding during conventional hot pressing.
[0007] Further, the number of plastic sheets is one or more. More preferably, the number of plastic sheets is 2 to 8. Even more preferably, the number of plastic sheets is 3 to 6.
[0008] Preferably, when there are multiple plastic sheets, the through holes on each pair of adjacent plastic sheets are staggered.
[0009] Preferably, the area of the through hole is 60-90% of the area of the plastic sheet. More preferably, the area of the through hole is 70-90% of the area of the plastic sheet.
[0010] Preferably, the plastic sheet has a border around its perimeter. More preferably, the border and the plastic sheet are an integral structure. The reserved border is for drilling holes for installation.
[0011] Furthermore, the size of the plastic sheet is the same as the size of the plastic plate.
[0012] Due to the application of the above technical solution, the beneficial effects of this utility model compared with the prior art are as follows: this utility model can present different color effects under different viewing angles, but the product is simple to prepare and process, inexpensive, and can be used in application scenarios with general requirements for material performance, such as architectural decoration. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the layered structure of the discolored plastic part in Example 1.
[0014] Figure 2 This is a schematic diagram of the structure of the plastic sheet in Example 1.
[0015] The components are: 1. Plastic sheet; 2. Plastic plate; 3. Through hole; 4. Frame. Detailed Implementation
[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments. The specific components involved are existing products, and the connection and usage methods between the specific components are conventional technologies. The positional relationships described in the present invention are the positional relationships in actual production applications, with the multi-faceted structure of the light-transmitting plastic part on top and the planar structure on the bottom.
[0017] In this invention, the plastic sheet and plastic plate are existing products, and they do not affect the color development of the pearlescent powder. The pearlescent powder layer used is the existing Merck T10. Example 1
[0018] like Figures 1 to 2 As shown:
[0019] A different colored plastic part includes two plastic sheets 1 and three plastic pieces 2 located between the plastic sheets. The size of the plastic sheets is the same as the size of the plastic pieces. The plastic pieces are provided with through holes 3, and the through holes on each adjacent pair of plastic pieces are staggered. A pearlescent powder layer is provided in the through holes.
[0020] In this embodiment, the upper and lower plastic sheets are made of polypropylene, which has a slightly higher melting point; the middle plastic sheet is made of copolymer polypropylene, which has a slightly lower melting point.
[0021] In this embodiment, the area of the through hole is 85% of the area of the plastic sheet.
[0022] In this embodiment, the plastic sheet is provided with a border 4 around its perimeter, and the border and the plastic sheet are an integral structure.
[0023] The preparation of the discolored plastic parts of this utility model uses conventional technology, briefly described as follows: A plastic sheet is punched with holes, leaving a border around the edges. The hole area occupies 85% of the plastic sheet area. Then, a thin plastic sheet is taken, and a layer of perforated plastic sheet is placed on top. A pearlescent powder layer is placed inside the holes. This process is repeated, followed by another layer of perforated plastic sheet and another layer of pearlescent powder inside the holes. Finally, a thin plastic sheet is placed on top, with all plastic sheets being the same size. The parts are then placed in a press for hot pressing. The middle layer, with a lower melting point, forms a bond, while the top and bottom layers, with higher melting points, maintain structural stability. After hot pressing, the parts are allowed to cool naturally to room temperature, then removed from the press to obtain the discolored plastic parts. Since there is no pearlescent powder layer around the edges, these parts can be used for drilling and installation. Example 2
[0024] Based on Embodiment 1, the difference in this embodiment is that there are two plastic sheets, otherwise they are the same. Example 3
[0025] Based on Embodiment 1, the difference in this embodiment is that there are four plastic sheets, while the rest are the same. Example 4
[0026] Based on Example 1, the difference in this example is that the area of the through hole is 75% of the area of the plastic sheet, while the rest are the same. Example 5
[0027] Based on Example 1, the difference in this example is that the area of the through hole is 80% of the area of the plastic sheet, while the rest are the same.
[0028] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the principle of the present utility model, and these should also be considered to fall within the protection scope of the present utility model.
Claims
1. A non-colored plastic part, characterized in that: It includes two plastic sheets and a plastic sheet located between the plastic sheets; the plastic sheet has through holes; and a pearlescent powder layer is provided in the through holes.
2. The discolored plastic part according to claim 1, characterized in that: The number of plastic sheets is one or more.
3. The discolored plastic part according to claim 2, characterized in that: When there are multiple plastic sheets, the through holes on each adjacent pair of plastic sheets are staggered.
4. The discolored plastic part according to claim 2, characterized in that: The number of plastic sheets is 2 to 8.
5. The discolored plastic part according to claim 2, characterized in that: The number of plastic sheets is 3 to 6.
6. The discolored plastic part according to claim 1, characterized in that: The area of the through hole is 60-90% of the area of the plastic sheet.
7. The discolored plastic part according to claim 1, characterized in that: The area of the through hole is 70-90% of the area of the plastic sheet.
8. The discolored plastic part according to claim 1, characterized in that: The plastic sheet has a border around its perimeter.
9. The discolored plastic part according to claim 8, characterized in that: The frame and the plastic sheet are an integral structure.
10. The discolored plastic part according to claim 1, characterized in that: The size of the plastic sheet is the same as the size of the plastic plate.