Button and electronic device with same
A technology of electronic equipment and keys, which is applied in the direction of circuits, electric switches, electrical components, etc., can solve the problems that the keycaps cannot meet the aesthetic requirements of the user's appearance, and cannot be prepared
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Embodiment 1
[0073] Take 200g of polycarbonate with red masterbatch, dry it at 120°C for 4 hours, and use it for later use. Use the film transfer printing film shown in Table 1. The structure of the film is as follows Figure 4 As shown, it includes: a film substrate 1 , a release layer 2 , a UV layer 3 , an ink layer 4 , an Al evaporation layer 5 , and an adhesion layer 6 . The film has a black ink layer. The film is placed on the first panel of the key cap in the mold, and the mold is a mold with 20 cavities. After mold closing, the polycarbonate is injected into the first preform, and the film adheres to the first preform under pressure and temperature to obtain figure 1 For the shape shown, the mold temperature is 100°C, the injection pressure is 120MPa, and the melt temperature is 320°C. After demoulding, the base material and the release layer on the surface of the film are torn off, and a "G" pattern is formed on the first panel according to a predetermined pattern with a laser wh...
Embodiment 2
[0080] Take 200g of polycarbonate with pink masterbatch, dry it at 120°C for 4 hours, and set it aside for later use. Use the film transfer printing film shown in Table 1, the structure is as follows Figure 4 As shown, the film ink layer is milky white and opaque. The film is placed on the first panel of the key cap in the mold, and the mold is a mold with 20 cavities. After mold closing, the polycarbonate is injected into the first preform, and the film adheres to the first preform under pressure and temperature to obtain figure 1 For the shape shown, the mold temperature is 100°C, the injection pressure is 120MPa, and the melt temperature is 320°C. After demoulding, tear off the base material and the release layer on the surface of the film, and use a laser whose parameters are shown in Table 2 to form an "Enter" pattern on the first panel according to a predetermined pattern.
Embodiment 3
[0082] Take 150g of polycarbonate with red masterbatch and dry it at 120°C for 4 hours, and dry the ABS resin mixed with black masterbatch at 80°C for 4 hours, and set aside, use the film transfer film shown in Table 1, structured as Figure 4 As shown, the film ink layer is black. The film is placed on the first panel of the key cap in the mold, and the mold is a mold with 20 cavities. After mold closing, the polycarbonate is injected into the first preform, and the film adheres to the first preform under pressure and temperature, the mold temperature is 100°C, and the injection pressure is 120MPa , The melt temperature is 320°C. The ABS resin is injected into the second preform, and the film is adhered to the upper surface of the outer frame under the action of temperature and pressure. get figure 2 For the shape shown, the mold temperature is 80°C, the injection pressure is 240MPa, and the melting temperature is 280°C. A "G" figure is formed on the first panel.
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