The new LTF-C technology, “Laser Transfer Film Contrast”, for permanent marking on glass achieves ultra-high contrast marking with superb definition which is unparalleled by any of the conventional technologies. The new technology is mainly used for marking glass in the photovoltaic, pharmaceutical and automotive sectors. Conventional glass marking technologies (enamel, chemical etching, sand blasting, inks, silk printing) often fail to provide a marking with the required flexibility and long lifetime.
This is why laser marking may actually be the best solution in many cases, since it’s characterized by greater flexibility, precision and respect for the environment. Despite these advantages, there are some applications that require even higher contrast with absolutely no superficial microcracks and better resistance to thermal stress (tempering) as well as mechanical, chemical and physical stress. For this reason, Panasonic Electric Works has developed the LTF-C technology for black marking on glass using a special FAYb laser and a particular film designed in collaboration with Tesa SA.