Finally we found a solution to sew very ergonomic tapes on tableau curtains - Raff-Rollos.
Because of the longarm 1000 mm of the sewing head - the fabric lays even and unpleated - so the operator may control the sewing process much easier.
If you use ultra violett light you may sew the tapes easier and better parallel.
Longarm sewing head 1000 mm
Puller-transport air operated
2 stitchlength callable
Stoke quick changer