The device is disposed in a line of treatment of the woven ones and comprises a treatment room (1) within which the woven one in motion (t) approaches through an estate syphon (2). In the room (1) the woven one in motion comes obliged to cover a first waved distance (6, 7). The woven one comes then made to cover according to distance waved, (33A, 33B) place to the income of aspiration (32) of blowing (12), where comes invested from currents of treatment liquid in order to exit from the treatment room (1) through a device to pressori cylinders (61, 62) where comes strizzato and forwarded then towards other apparatuses.