METHOD FOR THE PRODUCTION OF WEB-LIKE PACKAGING MATERIAL FOR CONTAINERS AND APPARATUS FOR CARRYING OUT THE METHOD

摘要

In processing web-like packaging material for containers, part of the thickness of the material is removed by paring from a longitudinal strip of the continuously advanced packaging web, the material removed is discharged by suction. Paring is done by a hollow rotary cutter on an axis substantially parallel with the direction of feed, the material being guided onto the knife by a roller and pressed down by a flow of compressed air. Webs feed speeds of more than 300 metres/minute are possible, and since the material is removed by cutting rather than grinding, the creation of contaminating dust is minimized.