A new focused laser perforator can create an easy-opening seam in thin film that is invisible to the eye. The seam is made of 30- to 40-micron holes, roughly half the size of typical laser perforations. Jenoptik Automatisierungstechnik GmbH in Germany developed a new laser perforating head with a lens that focuses the laser to a finer point size than standard laser scanners, which use mirrors instead. In order to cut perforations in a straight line across a moving web, the laser travels across the film at high speed, adjusting the laser angle to match the speed of the web (up to 300 m/min.) A test system is available at Jenoptik for webs up to 600-mm wide. Jenoptik is seeking industrial partners to test the system in production. +49 (3641) 65 25 70 • www.automation-jenoptik.de
Editor PickSizing the Barrier Gap
Here’s a less complex way to properly size the barrier gap for barrier screws.