PRODUCING TUBES FOR PACKAGING

摘要

A wrapper sleeve is made from a film length in the following consecutive steps: wrapping the film length about a sealing mandrel such that opposite longitudinal edge zones of the film length are in a face-to-face oriented relationship; providing a sealing seam in and along the face-to-face oriented longitudinal edge zones for bonding the edge zones to one another whereby a wrapper sleeve is formed; and removing the wrapper sleeve from the sealing mandrel and inserting the wrapper sleeve on a forming mandrel having a circumferential length identical to that of the sealing mandrel and a cross-sectional shape different from that of the sealing mandrel.