Laser logo printing on plastic by Fiber laser marking machine
Fiber laser marking machine for printing on plastic
Plastics can be marked or engraved with lasers in a variety of ways. With a fiber laser or UV laser or even co2 laser, you can mark many different commercially used plastics, such as polycarbonate, ABS, polyamide, and many more with a permanent, quick, high-quality printing result. Thanks to the low set-up times and flexibility a marking laser offers and easy laser operation system, you can mark even small batch sizes economically and also can use it for mass production,such as you can equip our fiber laser on your production line, our machine can detect it and laser printing on plastic one by one automatically.
Conventional Q-switched pule fiber laser is applied to many plastic materials and the marking result is usually very good, but for some sensitive plastics ( Sensitive to heat), the same level of homogeneity cannot always be achieved. then we can try mopa fiber laser marking machine or cold uv laser marking machine, We can set the pulse duration of laser source according to different plastic, we can set shorter pulse width to get it well laser marked. If using 355nm uv laser, it will be much easier, for usually uv laser is much expensive than fiber laser.
With dark plastics (such as PA 66 GF, PA 6 etc.), the surrounding material is less heated thanks to the short pulses and the associated low pulse energy. The plastics foam less and the marking is more homogeneous. Other plastics require more energy to heat up the material sufficiently. In this case, the long pulses help to optimize the foaming of the material. In both cases, marking with the MOPA laser leads to a more clear contrast and therefore to better (machine) readability.
Here some plastic laser printing samples you can check