Laser Marking
The Principle
Laser light is monochromatic light with high energy that can mark many materials as plastic, ceramics and more. The marking occurs when the surface is thermally or chemically changed.
Several systems exist as CO2, Nd:YAG and Excimer operating at different wavelengths. The most used are CO2 and Nd:YAG. Controlled Polymers are using Nd:YAG.
Dependent on wavelength and the formulation of the plastic the chemical reaction is foaming, carbonation, etching, engraving or photochemical reactions giving colour shift.
We have obtained good results with
ABS Acrylnitrile-butadiene-styrenes
ABS/PC Acrylnitrile-butadiene-styrene/Polycarbonates
PA Polyamides
PC Polycarbonates
POM Polyoxymethylene - Acetals
PE Polyethylenes
TPE Thermoplastic Elastomeres
PP Polypropylenes