Who can tell me in detail about the laser engraving process?

Laser engraving is a surface treatment process. It is similar to screen printing and pad printing. They both print words or patterns on the product. Different processes have different prices. Here I will talk about laser engraving. Principles and Precautions

Laser engraving is also called laser engraving. It is a surface treatment process that uses optical principles. It is often used on the buttons of mobile phones and electronic dictionaries. It has been used in products I have made before. To put it simply, it is like this:

For example, I want to make a keyboard with words on it. The words are blue, green, red and gray. The key body is white. When laser engraving, spray it first. Oil, blue letters, green letters, red letters, and gray letters are sprayed with corresponding colors. Be careful not to spray on other keys, so that it looks like there are blue keys, green keys, etc. Then spray a layer of white on the whole, and this is It's a whole white keyboard, with all the blue and green colors covered underneath. At this point, you can start laser engraving. Use laser technology and the key map produced by ID to carve off the white oil on the film. For example, processing the letter "A", carve off the white on the strokes, and the bottom will be either blue or green. It is exposed, so that letter buttons of various colors are formed

At the same time, if you want it to be transparent, use PC or PMMA, spray a layer of oil, and carve out the font part, then there will be light underneath. The words will come out, but at this time, the adhesion properties of various oils must be considered. Don't spray the oil on it and then scrape it off. That would be too embarrassing for the Chinese people!

Because each color key needs to be sprayed with different oils, this should be taken into consideration when making the structure. Each key should be separated to avoid spraying into unnecessary places. There are also places where there is a lot of loss. It is better to make two. Or multiple, so that there can be multiple matching ones.

The color difference of each color should be larger, such as black and white, so that the machine can easily distinguish and the carving can be clean, so as to avoid the carving being incomplete and affecting the appearance quality. Also, do not rely on fonts of different colors. It's too close, because we need to spray different colors. If your red and green are so close, how can I spray them? It's hard even for gods to do it!

This is the summary for now, welcome to give us any advice!