Testing laser welded seals for the manufacture of aseptic food containers

• Publisher: Elsevier Science
• Year: 2000
• Tongue: English
• Weight: 766 KB
• Volume: 2000
• Category: Article
• ISSN: 1350-4789
• DOI: 10.1016/s1350-4789(00)80047-1

✦ Synopsis

T es ting laser welded f or the manufacture seals of aseptic food containers Keyhole laser welding of polymers is a subject well covered and researched, but relatively little information exists regarding the welding of thin polymer films, particularly to a heavier substrate. Researchers at the Mechatronics Research Group, Systems Engineering Research Centre, Faculty of Engineering, University of Loughborough have designed a reliable test apparatus for the laser welding of thin films to a heavier substrate. In particular, they have investigated the feasibility of laser welding multi-layer polymer film lids to tubs for the manufacture of aseptic food containers. A consistent weld, free from defects, is the key to process success. with careful attention to machine design, a seal of high mechanical strength and chemical integrity is possible.