EXP.146 - 246 - Hydroextraction – Continuous Impregnation Up To 100 M/Mn (112 Yd/Mn) For high quality treatment of tubular knitted fabric. After the fabric is untwisted and laid flat, compressed air blows the fabric into a balloon to achieve the alignment of courses and wales. Then a powerful and constant hydroextraction is effected between two BST rollers. The rate of hydroextraction is constant and reproducible, varying from 60 to 80 % according to speed, water temperature, pressure of the BST hydroextracting rollers and the type of fabric being processed. A pneumatic stretcher with wheels and positive feeders compensates for dyeing lengthening and restores the stitches to their original pattern. Finally, the fabric is fed without tension onto a conveyor and transferred to a swinging folding device or directly to the relaxing drier in case of continuous treatment line (L.T.T.T.).