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A production process of a plastic button with invisible character effect

A production process and plastic technology, applied in the direction of electrical components, legends, electrical switches, etc., can solve the problems of unstable product size, difficult character display effect, difficult mass production, etc., to achieve easy processing, beautiful appearance, and easy mass production. production effect

Active Publication Date: 2019-03-01
DONGGUAN SINCO ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The mobile phone buttons in the prior art are difficult to achieve the following effects: the plastic buttons only display characters when the front side is transparent, but do not display characters when the back side is transparent
In addition, while the existing mobile phone buttons are difficult to achieve the above-mentioned character display effect, there are also the following defects in the production process: it is not easy to process, it is difficult to produce in large quantities, the product size is not stable enough, and the production cost is relatively high

Method used

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  • A production process of a plastic button with invisible character effect

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] A production process of a plastic button with an invisible character effect in this embodiment includes the following steps, wherein the prepared plastic button is shown in the attached figure 1 :

[0044] Step 1, injection molding the keycap: making a keycap injection mold, and then using white ABS plastic material and transparent PC plastic material to inject and mold the keycap 1 in the keycap injection mold; the keycap 1 is made of white ABS plastic part 2 and transparent PC plastic The transparent PC plastic part 3 is arranged in the middle of the white ABS plastic part 2, and the transparent PC plastic part 3 extends from the upper surface of the keycap 1 to the lower part of the keycap 1;

[0045] In this embodiment, the thickness of the prepared keycap 1 is set to 2.5 cm, and the thickness of the transparent PC plastic part is set to 2 cm;

[0046] In this embodiment, the injection molding conditions are: injection molding temperature is 250°C, injection pressu...

Embodiment 2

[0056] A production process of a plastic button with an invisible character effect in this embodiment includes the following steps, wherein the prepared plastic button is shown in the attached figure 1 :

[0057] Step 1, injection molding the keycap: making a keycap injection mold, and then using white ABS plastic material and transparent PC plastic material to inject and mold the keycap 1 in the keycap injection mold; the keycap 1 is made of white ABS plastic part 2 and transparent PC plastic The transparent PC plastic part 3 is arranged in the middle of the white ABS plastic part 2, and the transparent PC plastic part 3 extends from the upper surface of the keycap 1 to the lower part of the keycap 1;

[0058] In this embodiment, the thickness of the prepared keycap 1 is set to 2.3 cm, and the thickness of the transparent PC plastic part is set to 1.5 cm;

[0059] In this embodiment, the injection molding conditions are as follows: the injection molding temperature is 220°C,...

Embodiment 3

[0069] A production process of a plastic button with an invisible character effect in this embodiment includes the following steps, wherein the prepared plastic button is shown in the attached figure 1 :

[0070] Step 1, injection molding the keycap: making a keycap injection mold, and then using white ABS plastic material and transparent PC plastic material to inject and mold the keycap 1 in the keycap injection mold; the keycap 1 is made of white ABS plastic part 2 and transparent PC plastic The transparent PC plastic part 3 is arranged in the middle of the white ABS plastic part 2, and the transparent PC plastic part 3 extends from the upper surface of the keycap 1 to the lower part of the keycap 1;

[0071] In this embodiment, the thickness of the prepared keycap 1 is set to 3cm, and the thickness of the transparent PC plastic part is set to 2.2cm;

[0072] In this embodiment, the injection molding conditions are as follows: the injection molding temperature is 280°C, and...

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Abstract

The invention relates to the technical field of mobile phone press keys, in particular to a production process of a plastic rubber press key with an invisible character effect. According to the process, a key cap is formed through injection molding by using white ABS (acrylonitrile butadiene styrene) plastic rubber materials and transparent PC (polycarbonate) plastic rubber materials; a silvery film layer is plated on the surface of the key cap; characters and patterns are engraved on the silvery electric plating film layer formed on the upper surface of the key cap by using laser; then, the laser engraved character pattern layer is covered by a while ink layer; the effects that characters of the plastic rubber press key are only displayed under the front side light transmission condition, and the characters are not displayed under the reverse light transmission condition are further achieved, wherein the white ABS plastic rubber part of the key cap is in a state that only the middle character pattern part is in the light transmission state in order to ensure the non-light-transmission effect of the edge part of the key cap. The double-color injection molding is performed through the white ABS plastic rubber material and the transparent PC plastic rubber materials, so that the production process of the plastic rubber press key with the invisible character effect has the advantages that the processing is convenient; the mass production is easy; the product dimension is stable; the production cost is low.

Description

technical field [0001] The invention relates to the technical field of mobile phone keys, in particular to a production process of plastic keys with invisible character effects. Background technique [0002] With the continuous development of the communication electronics industry, the appearance and function of its related products are also constantly changing. At the same time, more requirements are put forward for the appearance, structural design and environmental performance of the products. Mobile phone keys are an important part of mobile phones. At present, the requirements for the appearance and performance of mobile phone keys are getting higher and higher. [0003] It is difficult for the mobile phone keys in the prior art to achieve the following effects: the plastic key only displays characters when the front side is light-transmitting, and does not display characters when the back side is light-transmitting. In addition, while it is difficult to achieve the ab...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H13/14H01H13/83
CPCH01H13/14H01H13/83H01H2219/03H01H2229/044
Inventor 刘德强
Owner DONGGUAN SINCO ELECTRONICS