A facility which is called atmospheric pressure and normal temperature plasma jet was introduced in this
paper. After the wool surface was treated by this kind of facility with Ar in different irradiating times, the
time-effect of the fabric wettability has been weakened, and if the parameters of the irradiating time and
the voltage of the facility are appropriate, the time-effect of wettability can be effectively inhibited. With
the stable wettability, the fabric can be dressed without PVA (polyvinyl alcohol) which can cause lager
pollution in the textile field, so the method without the time-effect of the textile wettability will be useful
in the field of clean textile production. Undoubtedly, the stable wettability of textile surface was caused
by the stable hydrophilic molecules on the textile surface. Thus, the reaction process and results on the
textile surface treated by plasma needs to be studied to optimize the parameters of the irradiating time
and the voltage of the plasma jet. So the initial experimental studies on the optimization of the parameters
of the plasma jet were discussed in this paper, and the authors believe that the method without the
time-effect also can be used in other fields of plasma application.