Laser Engraving vs. Traditional Silk Screen Printing (Which Process is Better for Printing Applications)

Screen is only used for screen printing of plastic and metal materials. Screen printing is called screen printing. In short, the principle of screen printing is to use photosensitive materials to make screen printing (making the screen holes of the screen printing part through holes instead of blocking the screen holes of the graphic part). In printing, the ink is squeezed by the scraper and transferred to the substrate through the mesh holes of the graphic part to form the same graphics as the original. It is not difficult to see from this sentence that film screens must be made for screen printing. You can also understand the film screen as the negative film of an old camera, and you can make a film screen.

The effect of screen printing is also brighter, but there are also some disadvantages - the printing company information will be worn over time. In addition, silk screen printing is four-color printing, that is, the content of silk screen printing is generally four colors, and silk screen printing cannot present a gradient effect, which also depends on its process.

Laser engraving process is to use the high-intensity focused laser generated by the laser to oxidize the material at the focal point.

The basic principle is: exposing the deep material through the evaporation of the surface material, or causing the chemical and physical changes of the surface material through light energy, or burning certain materials in the text, engraving traces, or burning certain materials through light energy to produce the required corrosion pattern.

For example, I want to make a keyboard with text, blue, green, red, gray, and the key body is white. Laser engraving, first spray oil, blue, green, red, gray. Be careful not to spray on other keys, otherwise blue, green and other keys will appear, and then spray a layer of white. The entire white keyboard is written on the keyboard, and blue and green are all wrapped. At this time, laser engraving can be performed, using laser technology and button drawing, processing the letter A, engraving white oil, or blue or green to reveal white oil, so that different colors of letter buttons are formed. At the same time, if you want transparency, use PC or PMMA, spray a layer of oil, engrave the font part, and the bottom will be transparent.

Laser engraving is different from silk screen printing. Laser engraving is performed on the surface of the sample by laser, just like engraving with a slate. There will be a sense of depression when you touch it. Compared with silk screen printing, laser engraving has the advantage that the engraved logo information will not be lost over time.