This is the most common method to finish fabrics today. The principle is to add a chemical solution onto a woven or a knitted piece of fabric while in the finishing process. In fact, that would be the last part of applying finishes, after dyeing but before heat setting.
The principle of application is to add a chemical solution into the finishing bath while fabrics are circulating through. This fabric will absorb a predetermined quantity that is controlled by means of adjusting speed of the rolling fabric and by the concentration of the functional agent into the aqueous solution.
We can easily picture that this method of finishing is relatively simple and flexible. By the fact that the finisher is already treating his fabrics, he has this opportunity either to add another step, either to apply simultaneously new additives to bring new functionalities to the final product.
