Process for producing plastic tubing provided with an internal coating, and extruder head for carrying out the process

摘要

The invention concerns a process for producing plastic tubing (3) provided with an internal coating (4), preferably of hot-melt adhesive. After the extrusion of the plastic tubing (3), the internal coating (4) is applied in the same working step via orifices (9), uniformly distributed around the periphery, of an extruder nipple (1) arranged in the end piece (2). <IMAGE>