FI753431

An apparatus for the wet processing of textile strands including a kier with several drums therein, each drum being supported by rollers in the bottom of the kier for rotation about the central axis of the coaxial drums. The drums have central openings to permit the strand to be fed into and out of the drums in sequence. Jetting-in devices are associated with each drum to inject the strand under fluid pressure and reels are provided to guide the strand from the drums and to the respective jetting-in devices. A liquid circulating system withdraws processing liquor from the bottom of the kier and injects the liquid under pressure to the jetting-in devices. The drum walls are perforated. In one embodiment, the strand is recirculated through a series of drums in sequence and through a pipe extending through the central openings in the drum from the last to the first of the series. In a further embodiment the strand is passed through the sequence only once and the kier is provided with feed and discharge conduits with additional reels, jetting means and fluid recirculating means for guiding the strand. Walls at the ends of the kier adjacent the feed and discharge pipe connections establish pressure traps which are fluid filled to permit a pressure differential to be established between the interior and exterior of the kier. Systems employing multiple kiers of the type disclosed are also shown with interconnecting conduit arrangements to minimize the total height of the feed and discharge pipes and to maintain proper pressure differentials.