Silk screen is only used for silk screen printing of plastic and metal materials. Screen printing is called screen printing. In short, the principle of screen printing is to use photosensitive material to make screen printing (make the screen holes of the screen printing part are 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 of the graphic part to form the same graphic as the original. It is not difficult to see from this sentence that silk screen printing must be made of film screen. You can also understand the film stencil as the negative film of an old camera, and you can make a film stencil.


traditional silk screen


Screen printing is also brighter, but has some drawbacks—printing company materials can wear down over time. In addition, screen printing is four-color printing, that is, the content of screen printing is generally four colors, and screen printing cannot show gradient effects, which also depends on its process.


Traditional silk screen process


The laser engraving process uses a high-intensity focused laser generated by a laser to oxidize the material at the focal point.


The basic principle is: expose the deep material through the evaporation of the surface material, or cause chemical and physical changes of the surface material through light energy, or burn some material in the text, engrave traces, or burn some material through light energy, so that the It produces the desired corrosion pattern.


laser engraving silk screen


For example, I want to make a keyboard with text, there are blue, green, red, gray, and the key body is white. Laser engraving, fuel injection first, blue, green, red, gray. Be careful not to spray on other keys, so there will be blue, green and other keys, and then spray a layer of white. The keyboard is written all over the white keyboard, with blue and green all over it. At this time, laser engraving can be carried out, using laser technology and button drawing, when processing the letter A, engraved white oil, or blue or green to reveal white oil, thus forming letter buttons of different colors, and if you want to be transparent, use PC or PMMA, spray a layer of oil, engrave the font part, and the bottom will be transparent.


Laser engraving is not the same as silk screen printing. Laser engraves the surface of the sample as if engraving with a slate. There will be a hollow feeling 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.