Laser Marking in the Plastic Industry

1 Day/night design switches in a component tray Selective paint removal applications, also known as night and day marking, are very demanding applications found in various industries such as in the design of a car's interior. Night and Day marking allows the user to see the graphic both in day light and at night time through back illumination. This application insight looks at night and day marking of different materials including ABS and silicone rubber. It shows how the marking process is achieved, focusing on the Pulsed Fiber Laser, and the benefits of using it for this specific application.

2 Plastic Pipes Laser marking An additive is mixed into Gabocom's PE pipes, in order to ensure that the laser marking process generates high contrasts.
The advantage: Plastics which, as a result of a laser marking process, show no contrast in the pre-doping phase display a legible inscription after the additive has been added.

3 Various laser-sensitive plastics with color additives Various plastics with laser-aided color change marking
If, as a result of a laser marking, the plastics do not produce the desired color change effect, special additives can be added over the course of the assembly of the plastic. As a result of these additives, the material reacts to the laser, producing a brilliant color change.

4 Laser marking on a level sensor The carbon in the sensor's plastic oxidizes to CO2, which emerges from the plastic and forms a foam layer. Depending on the composition, the color change is either bright or dark. Dark plastics turn white at the points to be marked, while bright plastics turn either gray or black.

Laser Marking in the Plastic Industry

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