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At present, marking on products has become an indispensable process in manufacturing. With the development of society, product identification has changed from the earliest mold stamping, injection molding, to labeling, to silk screen printing, and then to laser marking. Because many people consider buying silk-screen printing equipment before choosing marking equipment? Or buy a laser marking machine? Both have their own advantages, depending on your needs. Now that we are talking about this, let's learn about laser marking and screen printing together with Fulan Laser。

1. Screen printing, also known as silk screen printing: refers to the use of silk screen as a plate base, and through the photosensitive plate making method, made into a screen printing plate with graphics and text.

Screen printing is composed of five elements: screen printing plate, squeegee, ink, printing table and substrate. Screen printing refers to the use of silk screen as a plate base, and through the photosensitive plate making method, made into a screen printing plate with graphics and text. Screen printing is composed of five elements, screen printing plate, squeegee, ink, printing table and substrate. Use the basic principle that the mesh of the graphic part of the screen printing plate can penetrate the ink, and the mesh of the non-graphic part cannot penetrate the ink for printing. When printing, pour ink on one end of the screen printing plate, use a squeegee to apply a certain pressure to the ink part on the screen printing plate, and at the same time move to the other end of the screen printing plate at a uniform speed, the ink is moved by the squeegee from the graphic Part of the mesh is squeezed onto the substrate. Screen printing requires ink consumables, the color can be selected, and almost any color can be printed.

Process flow: stretched screen → degreasing → drying → peeling off base → exposure → developing → drying → retouching → sealing screen → pouring ink → moving at a constant speed with a scraper → squeezing through the mesh onto the substrate

2. Laser marking: also known as laser engraving machine, laser machine, laser engraving machine, laser machine, laser coding machine, laser engraving machine, laser marking machine, laser marking machine, etc. (the name varies from place to place ), is to use a laser beam to make permanent marks on the surface of various substances. The effect of marking is to use high-energy-density lasers to locally irradiate the workpiece. The physical evaporation of the surface material exposes the deep material, or the chemical and physical changes of the surface material caused by light energy to "carve" traces, or light energy Burn off part of the material to reveal the pattern and text to be etched.

The principle of laser marking processing: The laser emitted by the laser undergoes a series of treatments, and the energy is concentrated in a small range after focusing by the lens, so that the surface material is instantly melted or even vaporized. By controlling the laser on the surface of the material Path to form the required graphic mark. According to different material properties (such as melting point, boiling point, temperature at which chemical change occurs), the workpiece will undergo a series of physical or chemical changes, such as melting, gasification, oxide formation, discoloration, and so on. Since the laser marking machine is a marking (lettering, engraving) equipment that does not require consumables, the color marked on the object is generally based on the material of the marked workpiece, the model used, and the adjustment It depends on the parameters, not what color you want to be able to print out what color.

Process flow: power on the equipment → edit content in the computer → mark