Silvia Rosenberger, Technical Marketing Manager at Merck KGaA, Darmstadt Germany, held a lecture as part of the FOBA “Virtual Manufacturing Day 2020” webinar series on January 14, 2021. As an expert for laser pigments, she explained together with her colleague Stefan Gutberlet, Global Marketing Manager Industrial Pigments, how plastics can be optimized for obtaining best laser marking results.
During the webinar, which attracted many participants, numerous questions came up which could not all be answered due to limitations of time. Therefore, as a webinar follow-up, Silvia Rosenberger and Stefan Gutberlet kindly provide their missing answers for the FOBA blog.
The webinar recording “Lasermarking of polymers and the improvement through laser pigments” from January 14, 2021, is available on demand at https://page.fobalaser.com/FOBA-WBN-VMD-Merck-2020-EN_WBN-LP-OnDemand-EN.html
Just in a nutshell: What is the benefit of using laser pigments?
Stefan Gutberlet: Customers either ask for an improvement in speed or in marking quality. So, we say: Once the lasers become faster, the material must keep up with it. And this is what our pigments do. They improve the marking speed, the contrast and the line definition with pulsed DPSS or fibre lasers in polymers. Without laser pigments most polymers do not contrast mark at all.
A great number of medical applications, many of which require direct part marking for device identification purposes, are made of plastics. Since lasers can create durable and high-quality marks, laser technology is the proven method for plastic marking.
Based on our decades of experience, our focus is to develop solutions for the industry which will master every challenge. Whether it is our special solution for the medical market to ensure safe and easy UDI-Marking with maximum efficiency, or development of the smallest laser head in the world. Our solutions are always based on close cooperation with the industry. Through targeted surveys and the close cooperation with our customers, certain challenges with line integration have repeatedly been noticed. Our development and product departments did an amazing job by solving these challenges.
The FOBA Y.0200-xs fiber laser marking system can be integrated into any production line thanks to the smallest marking head available on the market. Field-tested, Titus™ achieves top marking results, as demonstrated by application testing on colored plastic profiles.
Glass is best marked with UV or CO2 laser systems. The
energy input can be kept low to minimize the effect of microcracking.
Both marking methods create easily readable and
resistant characters by means of engraving or colour change, which are
optically different on closer inspection. While the UV laser marks are even,
finely rasterized areas, the resolution of the CO2 marking appears in coarser
Titanium is a high-quality material that is used in (dental) medical
technology for implants, in the automotive sector for screws or valves, and for
many other applications. It is usually marked in black by laser annealing, while
colored laser markings are possible but less durable.
Laser etching machines are indispensable in most industries. They can be used in a variety of ways and mark or engrave almost all materials with high precision and efficiency. Different methods are used for industrial product labeling, depending on the desired effect, material or quality requirements.
The acquisition of a laser marker is a large investment for any organization. The correct choice of the laser depends on many variables and it is challenging to keep the overview of the huge number of providers and suppliers. The following questions will help you to get as many information as possible and to prepare the acquisition process by considering the main aspects. Read More
Melt engraving with a CO2-laser is a possible alternative to the color change process by fiber or UV laser when labeling plastic. Especially when it comes to straightforward marking of single-line characters and codes, a CO2-laser system, integrated into the production line, can provide a fast and easy labeling solution. Read More
Still searching for the perfect Christmas gift? An individual marking makes items like key rings, wooden plates or drinking glasses a very personal little something. Job-shop manufacturers, that offer laser marking of such articles, usually apply a CO2-laser which is most suitable for marking glass, wood or leather. Read More