LINING TUBE FOR SEWER REHABILITATION AND METHOD AND ARRANGEMENT FOR PRODUCING SUCH A TUBE

摘要

A lining tube for rehabilitating sewers and effluent lines, with an inner film tube (2), which is produced by joining the edge portions (4a, 4b) of at least one film web (6), which has on its outer side a nonwoven layer (8), and with a reinforcing layer (10), which is arranged on the nonwoven layer (8) and comprises a roving (10) impregnated with a light-curable reactive resin and wound in particular in a helical form, is distinguished by the fact that the nonwoven layer (8) extends in the edge portions (4a, 4b) up to the respective longitudinal edge (6a, 6b) of the film web (6), that the edge regions (4a, 4b) of the film web (6) are placed one over the other in an overlapping region (12) with a width (B) of 0.1 to 10 mm, in particular 0.5 to 2 mm, and that arranged on the side (14) of the film web (6) opposite from the nonwoven layer (8) is a film strip (16) that is thermally welded to the film web and covers the overlapping region (12). The invention also relates to a method and an arrangement for producing such a lining tube.