Fiber’s moisture absorption is poor when it is untreated, mainly because there is air, oils and cotton wax inside the fiber. In order to infiltrate agents quickly along fiber, let the air go out and penetrate to the fibers, we should add surfactant which can reduce the surface tension between oil and water.

Therefore, penetration and wetting agents not only mainly used for desizing, scouring and bleaching, mercerization or pretreatment processes, but also widely used in dyeing, printing and finishing processes