This work has been done during an intership with Medtronic Trévoux, specialists in the repair of hernias. This was an opportunity to participate in the industrialization phase of a new project. This comes to the placing on the market of a textile prosthesis for ventral hernia, intended to be inserted thanks to an innovative method of surgery. That is a mini-invasive approach by laparoscopic surgery via robotic. The manufacturing step that has been studied here is the cleaning of the textile prostheses, also called de-oiling. Indeed, the interest of the cleaning step is to remove the spin-finish oil on yarns, this last being necessary for the first stages of manufacturing but undesired in patient’s body.