Patent ID: 8910589

Claim:
A device for continuously depositing a treatment substance on the surface of a thread running from an inlet to an outlet of the device, comprising: impregnation means, including a bath configured to contain a solution of the treatment substance in liquid form, for impregnating the thread with said liquid solution by running the tread through said bath; draining means, placed downstream of said bath, for removing excess liquid entrained by the thread; treatment means, placed downstream of said draining means, for solidifying said liquid solution remaining on the thread; guiding means for guiding and running the thread from the inlet to the outlet of the device along guided directions of the thread including a run direction d f and at a run speed V f ; and regulating means for regulating a liquid spray velocity V j according to said run speed V f of the thread so as to adjust thickness of said liquid solution on the thread when leaving said draining means to a thickness ‘e’, wherein said draining means includes spraying means for spraying said liquid solution with said liquid spray velocity V j towards the thread in the form of jets that converge in directions d j , and wherein said directions d j make an obtuse angle α with said run direction d f so as to adjust said thickness of said liquid solution remaining on the thread when leaving said draining means to said thickness ‘e’.