by suction the nozzle 7 is designed as a continuous slotted nozzle with individual connections the wall of the shaft 13 completely encloses the roller around its entire outer circumference with a definite shaft width naturally being provided only in the region of the textile web 1 on the rear side the shaft wall 13 encloses the roller to the extent that contact is only just avoided as suggested in fig1 and 2 the shaft wall 13 could enclose the rollers only in the wrap around areas with suitable seals naturally being required to be incorporated with regard to the freely rotating roller sections with the embodiment according to fig4 the shaft 5 has an approximately s shaped cross sectional design the deflection roller 10 guides the textile web 1 from the horizontal directly into the curved area 6 of the first roller 2 extraction over the deflection roller 10 39 is done at almost the same level in the direction of the arrow a a vapour air water mixture is applied to the textile web from the collector tubes 16 integrated into the wall of the shaft the driven rollers or drums 2 and 3 can possess a structured surface so that the textile web only.