抄録
The antibacterial properties of dirty fabrics washed by using the zeolite supported by metal-ion was investigated experimentally. Silver, zinc and copper were used for the metal-ion and these zeolite materials were used for the washing together with the surface active agent (sodium dodecylbenzenesulfonate : DBS). It is noted from the washing experiment that a good antibacterial property can be achieved after washing by using zeolite supported by metal-ion and/or DBS. In the case of sodium zeolite, however the antibacterial effect on fabrics decreases with the increase of zeolite. This may be caused by the adsorption of DBS into the crystal structure of the sodium zeolite. For fabrics with antibacterial properties, the sticking of zeolite on the surface of fabrics can be observed after washing. The sticking of zeolite supportrd by metal-ion may cause the antibacterial property of fabrics after washing. An additional experiment suggests that the amount of zeolite does not effect how clean the fabrics are after washing. In the case where DBS concentration is higher than critical micell concentration, the degree of cleanness of washed fabrics is somewhat higher when zeolite is used compared to when zeolite is not used.
