Patent ID: 6174393
Filing Date: 2001-01-16
Classification: B29C,B29D,B29K,B29L,B65D,Y10S

Abstract:
A process for the production of a multi-chamber packaging tube made of plastic which comprises a tube pipe, a tube head connected to the tube pipe, and at least one partition housed in the tube pipe, comprising the steps of:(a) providing a mandrel with a slit;(b) charging the mandrel with the partition wherein the partition has a front edge and bent flanges with lengthwise edges such that the partition is introduced into the slit of the mandrel and the flanges rest against the outside surface of the mandrel;(c) applying the tube pipe to the mandrel which has been charged with the partition;(d) forming the tube head using a die and at the same time connecting the tube head to the tube pipe wherein the die comprises a matrix as one die half and said mandrel as another die half;(e) melting the front edge of the partition together with the inside surface of the tube head; and(f) bonding the flanges of the partition to an inside surface of the tube pipe.