Product Code: ICA10_M409

Laser Splicing Technology for Thermoplastic Film Material
Authors:
Naoyuki Matsuo, Nitto Denko Corporation; Kameyama, Mie Japan
Mayu Shimoda, Nitto Denko Corporation; Kameyama, Mie Japan
Ryuta Kibe, Nitto Denko Corporation; Kameyama, Mie Japan
Atsushi Hino, Nitto Denko Corporation; Kameyama, Mie Japan
Peter Abels, Fraunhofer Institute for Laser Technology; Aachen Germany
Andreas Roesner, Fraunhofer Institute for Laser Technology; Aachen Germany
Alexander Olowinsky, Fraunhofer Institute for Laser Technology; Aachen Germany
Presented at ICALEO 2010

Recently, near-infrared lasers show remarkable progress in terms of output power, long running stability and cost. The development of laser precision plastic welding technology utilizing these laser sources as one of main applications has been actively conducted all over the world. The authors studied and developped brand-new laser splicing technology as a new application of laser welding for thermoplastic film material fed at roll-to-roll hundling process, which showed better bonding quality compared to the conventional splicing methods such as adhesive tape method, heat sealing method, and so on. In this report, basic laser splicing method for various transparent thermoplastic films, correlation between laser processing condition and bonding condition, how to measure heating situation when laser irradiated, in-process controlling method, moreover high precision and photon absorber-free butt splicing technology which is state-of-the-art laser welding technology will be described.