How to do the text printing of light-transmitting keys---laser marking

How to do the text printing of light-transmitting keys---laser marking

Translucent keys, also known as transparent keys, are keys that emit light by themselves in the dark. Laser marking of transparent keys is a new type of laser technology born under high-tech technology, and its products have been gradually integrated into people's daily life.

With the improvement of people's quality of life, in the electronic 3C consumer market, the performance requirements of products are more diversified, including the personalized requirements for various functional buttons. Various buttons on the market today use the light-transmitting material sprayed on the surface to remove the paint according to the designed graphic or logo pattern. Under the LED light on the back, the light-transmitting effect of various function indicators is displayed. Light keys are not only able to precisely locate individual buttons. At the same time, the function indication signals under various lighting colors are clear and beautiful.

The light-transmitting button can display the required function indication signal through the built-in LED light. Translucent keys are widely used in electronic products in daily life such as mobile phones and computer keyboards.

There are many ways to realize the light transmission of keys, but there will be some defects more or less. For example, in the hollow printing process, a hollow template with a fixed shape is designed to shield the required light-transmitting area, and then painting is applied to obtain the light-transmitting effect of the pattern. However, the template needs to be cleaned or replaced regularly. When a new light-transmitting pattern is required, the template has to be remade. Not only is the production efficiency low, but also when the product is updated, the template inventory will accumulate, resulting in a waste of resources. In the traditional paint removal process, the method of soaking in a paint remover is not suitable for the removal of a single flat paint layer, and most of the paint removers are toxic chemicals, which are not conducive to environmental protection. Mechanical grinding, scraping, high-pressure water or spraying Sand and other methods, which completely rely on mechanical force to remove paint, not only have low processing accuracy, difficult to control, but also easily damage plastic substrates, and it is difficult to achieve different light transmission effects.

In view of the above-mentioned defects of the prior art, the transparent key laser marking machine developed by Han's Yueming Laser came into being, which overcomes the problems of low production efficiency, low processing precision and easy damage to the key material of the existing transparent keys.

Using a transparent key laser marking machine to remove the paint filling area corresponding to the key mark and the parameters used in the border area of the key mark are different. After removing the paint filling area corresponding to the button logo, there are small paint particles and burrs remaining in the border area of the button logo. The laser marking machine uses a higher Q frequency and the laser dots are denser. After processing, the border of the button logo looks smoother. Improve the processing quality and light transmission effect of light-transmitting keys. When removing the paint-filled area corresponding to the key mark, use the appropriate laser power, output higher energy, and make it easier to remove the paint layer. Adjust to a lower laser power when removing the fine paint particles and burrs remaining in the frame area of the key mark. It is not easy to damage the light-transmitting key body.

There are also the following process advantages:

Non-contact laser processing, fast marking speed and high processing accuracy

High beam quality, extremely small focusing spot, ultra-fine marking, good light transmission effect

· Zero damage to key material, no burr on the machined edge, permanent wear resistance