Laser marking processes enable permanent markings on plastic surfaces using an optically controlled laser beam.
Using special laser additives, a light marking on dark surfaces can be achieved by a targeted foaming, thereby enabling a very good contrast.
By using special laser additives, a dark result can be achieved on a light surface. The surface is heated by a laser beam then the polymer matrix is carbonised locally.
Polymers such as PC, PET, PBT, ABS, PS, SAN, SB, TPE and TPU, as well as PA, PE and PP are ideal for carbonisation, allowing a good contrast.
Colored markings on colored surfaces remain a desire. However, colored markings on black surfaces, especially in PA, PE and PP, allow new design freedoms. For this purpose, the colorants used determine the contrast ratio.